Device for inputting information into electric devices

FIELD: engineering of devices for inputting information into electronic devices, in particular, mobile phones, computers, control panels, home appliances and other technological devices.

SUBSTANCE: device contains body meant for mounting structural elements. On the working surface of the body, miniature manipulator is positioned, which realizes functions of controlled element. In internal space of the body, marker with possible movement under effect of magnetic gravity forces from the side of manipulator, magnetic field and acoustic signal sensors and optic-electronic control block, including electronic and optical systems, are positioned.

EFFECT: creation of device for information input, which may display absolute coordinates of position of wireless, miniature manipulator, as cursor, and to transfer control signals by means of the same, and device may also be integrated with electronic device controlled by it.

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The invention can be used to enter information in electronic devices, in particular mobile telephones, computers, control panels, photo, video, audio, household and other technological devices, by controlling a cursor displayed on the display controlled electronic device and by transmitting control signals.

Device for entering information into the electronic devices are widely known. It is known, for example, a device to indicate the position of the manipulator described in JP patent No. 10171582 A (WACOM CO LTD) 26.06.1998. "Positioner" [1]. The device comprises two parallel and with a specified distance between a surface conductive pattern. On the outer side of the upper surface of the mounted manipulator, which is managed element device, the pointing device may contain a permanent magnet. Between the surfaces with electrically conductive pattern is electrically conductive movable element. When you move the pointing device on the surface of the device, the conductive element is moved between two surfaces with a conductive pattern, as it's exposed to the force of magnetic attraction on the part of the manipulator. While specified movable element, its location, causes a change in the capacitive coupling between the shown surfaces, that allows the control unit to determine position coordinates of the moving element and enter them into the computer.

The disadvantages of a "position indicator" are low reliability due to the fact that the capacitance between the surfaces with electrically conductive pattern is extremely sensitive to vibration, thermal and mechanical deformations of these surfaces arising from the operation of the device, which can lead to loss of control unit controls the coordinates of a position of the moving element.

In addition, the device is not able to transmit the signals required to control the computer, such as the widely known computer "mouse".

Closest to the invention the essence and the achieved technical result is an optical device input information type "mouse", is described in US patent No. 4751505 NCI: 340/710 "Optical mouse" [2].

The patent describes a device comprising a housing designed for mounting structural elements, simultaneously performing the function of a managed element and element, the coordinates of the positions of which are determined. The housing has on its surface a micro-switches for transmitting control signals and contains electronic and optical systems. The optical system projects the image area of the working surface is ti under the housing of the device, illuminated by the light source, the matrix photodetector, which is part of the electronic system. The photodetector is a matrix of photodiodes, technology-based CMOS CMDP. The image processor included in the electronic system, makes the images of the surface under the "mouse" with a high frequency, in this case the ADC processor, performing progressive scanning, estimates the illumination of each element of the matrix. Based on the analysis of a series of successive images of the surface of the processor calculates the resultant indicators corresponding to the direction and magnitude of movement of the body "mouse" along the axes X and Y, under the influence of the operator's hands. The received data is transferred to the chip controller that is incorporated into electronic systems "mouse", responsible for the response to the pressing of the switch, the rotation of the scroll wheel, etc. This chip directly transmits to the PC information about the direction of the mouse movement, converting data transmitted over the interfaces PS/2 or USB signals. But the computer using the driver "mouse", on the basis of received on these interfaces information, moves the cursor on the monitor screen and executes commands corresponding to the angle of rotation of the scroll wheel and press on the switch.

Optical mouse" them is no disadvantages.

The design of the optical system and the presence of numerous elements in the case of the mouse do not allow "mouse" in miniature format.

Furthermore, the presence of wires to transmit data and power limits her mobility and wireless mouse has a lot of weight, because of the batteries and require periodic charging.

In addition, for the "mouse" a horizontal working surface.

The above-described shortcomings in the aggregate not allow you to use "mouse" to control mobile devices, such as cell phones.

The technical result of the claimed invention is the creation of the input device in electronic devices, which can be visualized in the form of a cursor on the display of the controlled electronic device absolute coordinates of the position of the miniature and wireless pointing device executing the device function of a managed element.

Additional technical result of the invention is to provide such a device construction in which by means of a miniature and wireless manipulator is also possible to transmit control signals.

Another technical result of the invention is to improve usability miniature manipulator device.

Another technical result izobreteniya the design of the device, integrated with the controlled electronic device.

These technical results are achieved due to the fact that the inventive input device information in electronic devices includes a driven element, a casing installed therein a light source and an electronic system containing electrically connected matrix photodetector, the image processor and the chip-controller, while the managed element is a miniature manipulator, which contains at least one permanent magnet and placed on the body surface, while the light source is in the form of a flat light-emitting panel, mounted opposite and parallel to the photodetector, between the light source and the photodetector are placed marker containing at least one permanent magnet and configured to move parallel to the surface of the photodetector, under the influence of the magnetic force of attraction on the part of the manipulator, and the image processor is configured to determine a coordinate position of the marker by its shadow on the surface of the photodetector.

In addition, the device additionally has at least one sensor sensitive to the magnetic field of the marker and electrically connected with the chip-controller.

In addition, the obese device is additionally equipped with a sensor of acoustic oscillations of the hull, when this electronic device further comprises a processing unit of the pulse of acoustic signals, electrically associated with the specified sensor and chip controller.

In addition, the pointing device further comprises at least one emitter pulse audio signals in the form of an elastic membrane.

In addition, on the surface of the manipulator, in the center of its upper part, made a dent.

In addition, the manipulator and the marker also include an outer layer of material with a low coefficient of friction.

In addition, the marker further comprises a node lock spontaneous movement.

In addition, the marker is made with a possibility of rotation and translation parallel to the surface of the photodetector, under the influence of the magnetic force of attraction on the part of the manipulator, the token further comprises an opaque aperture, which has at least one transparent window, and the image processor is arranged to determine the position and angle of the marker, its shadow on the surface of the photodetector.

In addition, the device is integrated with the controlled electronic device.

The invention is illustrated in the following graphics.

Figa - General view of the device in cross section.

Figb - General view from the trojstva capable of transmitting control signals, in the section.

Figv device with magnets in the shape of a square frame in the cut.

Figg device with annular magnets in the section.

Figa - the interaction of the magnetic poles of the manipulator and the marker with magnets in the shape of a square frame.

Figb - the interaction of the magnetic poles of the manipulator and token ring magnets.

Figa - illustration of the verbal description of the algorithm for finding the coordinates and angle of rotation of the manipulator, in General.

Figb - illustration of the verbal description of the algorithm for finding the coordinates and angle of rotation of the manipulator.

4 is a block diagram of the algorithm for finding the coordinates of the manipulator and angle of rotation.

5 is a block diagram of the principle of operation of the device of example 1.

6 is a block diagram of the operating principle of the device according to example 2.

7 is a block diagram of the operating principle of the device according to example 4.

Fig - timing diagram of the transmission and conversion of pulsed acoustic signals.

Figa - General view of the device, integrated with a controlled electronic device, top view.

Figb - section (a-a) integrated device.

Figure 10 is a structural diagram of a device.

The inventive device (figure 10) contains: 1 - body, 2 - photodetector, 3 - arm, 4 - marker, 5 - light, 6 - sensor acoustic oscillations of the body, 7 - gauge, case is valid to the magnetic field of the marker, 22 - work surface 23 of the electronic system.

The manipulator 3 is a managed element device and is located on the working surface 22 of the housing 1. In addition, the device contains a token 4, which is the element, the coordinates of the positions of which are determined. Thus the photodetector 2, the sensor of acoustic oscillations of the casing 6 and the sensor sensitive to the magnetic field of the marker 7, are sensitive elements of the electronic system 23.

The photodetector 2 is the sensitive element of the image processor (not labeled)that is part of the electronic device 23 performs the role of the position sensor. The photodetector 2 is a matrix of photodiodes, which light-sensitive elements, and the matrix is made, for example, in standard CMOS technology-CMDP based on amorphous silicon, with the architecture of active or passive pixels [3]. Such a matrix photodetector, but smaller, used in the prototype, in addition, such a matrix photodetectors are used in input devices graphic information in computing systems [4] and other applications [3]. Matrix photodetector 2 is located in the inner space of the device beneath the work surface 22 (figa) and has a size proportional to RA the measures of the display. To control a personal computer photodetector may have the following dimensions: 70 × 90 mm, to control cell phone photodetector may have the following dimensions: 10 × 10 mm, the matrix photodetector with different sizes. The number of photosensitive elements of the matrix photodetector 2 is selected in accordance with the required resolution of the device. In this case, since the device allows to determine the absolute position coordinates of the pointing device, the resolution can be considered sufficient at the display resolution. For example, to control a personal computer, the number of matrix elements can be: 1280·1024≈1,3·106to control the cell phone, the number of matrix elements can be: 100·100=1·104, it is possible to manufacture a matrix photodetector and with a different resolution.

The light source 5 is a flat light-emitting panel, located in the inner space of the device opposite and parallel matrix photodetector 2 at a distance greater than the thickness of the marker 4 (figa). As a light-emitting panel is used, for example, electroluminescent lamp coil type, which produces a uniform diffuse illumination with high brightness (50 Lux) [5], [6]. Linear dimensions swiatoslaw is her panel equal to the linear dimensions of the matrix photodetector. The emission spectrum of the light-emitting panel corresponds to the range of spectral sensitivity of the photodetector.

The pointing device 3 in the simplest case, is a permanent magnet (figa). In this part of the surface of the device body 1, which produce movement of the manipulator to input information into the electronic device, forms the working surface 22. The device may be integrated with the controlled electronic device, in this case, working is part of the surface of a managed device, such as cell phone (figa, b). Part of the housing 1 of the device, situated beneath the work surface 22, which produce movement of the arm is made of a nonmagnetic material, for example plastic. Beneath the work surface adjacent the manipulator, is the marker 4, in the simplest case, representing the permanent magnet (figa). The permanent magnets of the manipulator and the marker is made, for example on technology magnetoplasmon of rare earth magnets, neodymium-iron-boron (Nd-Fe-B) [7]. The permanent magnets of the manipulator and the marker can be made in the form of a ring, disc or square, and may have a different shape. While the magnets can be axial, radial and bipolar or multipolar magnetization, and may have different magnetization. Those who ology manufacturing, the form and type of magnetization of the magnets are not of fundamental importance, the principle is that the magnetic poles of the permanent magnets of the manipulator and marker are located so that between the manipulator and the marker there is a force of attraction resulting from the interaction of their magnetic fields [7], [8]. This solution allows the use of a magnetic circuit formed by the permanent magnets of the manipulator and the marker, in order to synchronize the handle 4, is taking place under the effect of gravity on the part of the arm 3, with the movements of the manipulator, occurring under the influence of the fingers of the operator (figa). The arm 3 is moved along the working surface of the device 22, and the surface of the matrix photodetector 2 synchronously and related moves the marker 4, blocking the light output from the light-emitting panel 5 to the matrix photodetector 2 and forming on its surface a shadow. If necessary, the matrix photodetector 2 and the light emitting panel 5 may have a reciprocal arrangement, under the working surface is a light-emitting panel (reciprocal position not shown). Thus, the problem of determining the coordinate position of the manipulator is reduced to the problem of determining the coordinate position of the marker, making simultaneous and adjacent to manipulation is the PR movement.

Processor image processing (not labeled), which is part of the electronic system 23 (figure 10), in accordance with the algorithm (figure 4), performs multiplex survey of the elements of the matrix photodetector and converts using a comparator (not shown) distributed over the area of the photodetector of the optical information formed by the shadow of the marker in a temporal sequence of digital signals. While respondents to the elements of the matrix photodetector located in the shadow of the marker is assigned the value 0, and the elements beyond a shadow of a marker is assigned a value of 1, and then the processor according to the algorithm determines the coordinates of the position of the marker on the display controlled electronic device displays the absolute coordinates of the position of the manipulator. Since the light-emitting panel creates a high illuminance on the surface of the matrix photodetector, and the light level on its elements is evaluated only two values, a matrix photodetector may have a passive pixels and low fill factor, and the photosensitive elements of the matrix may have a low dynamic range, which will significantly simplify the manufacturing technology of the matrix [3]. Thus, the technical result: the creation of the input device, the information is in electronic devices, allows you to display in the form of a cursor on the display of the controlled electronic device absolute coordinates of the position of the miniature and wireless pointing device executing the device function of a managed element.

To achieve additional technical result of the magnetic properties of the marker 4 is used for positional control of the individual sensors 7 (figb), sensitive to the magnetic field of the marker and adjacent to the path of motion of the marker [8]. This allows you to control simple functions of electronic devices, such as turning on, answer the phone in cell phones, in the same way as in the case of conventional switches - when approaching marker 4 to the sensor 7, such as a Hall sensor or reed switch, switching circuits of the electronic system 23 (figure 10). For transmission of control signals is the same as pressing the left and right "mouse"button can be used emitter 13 (high), or several such emitters pulsed sound signals prescribed in the arm itself and the working surface 22, the sensor of acoustic oscillations of the casing 6 (fehb) and the processing unit pulsed acoustic signals (not labeled), which is part of the electronic system 23 (figure 10). Clicking on the upper part of the arm formed by the elastic cap 11 high), with a force greater than the threshold emitter pulse sound signal 13, is the emission of a sound pulse. Thus the longitudinal mechanical wave propagates through the device 1 and is captured by the sensor of acoustic oscillations of the casing 6 (figb), for example a piezoelectric microphone. The processing unit pulsed acoustic signals produces a selective choice of acoustic signals in frequency and amplitude, which allows the electronic system to identify the fact of pressing or releasing [9], [10]. For transmission of control signals, similar to the control signals transmitted using the scroll wheel of the mouse, use the rotary motion of the manipulator. During the rotation of the arm 3, and with it the magnet 9 around their axis of symmetry along the working surface 22 on the surface of the photodetector 2 synchronously and related rotates the magnet 15, and with it the marker 4 (figv and figa). On the photosensitive surface of the photodetector is formed shadow with a characteristic zone - lighted area, located under the transparent window 20 of the diaphragm 14, it is possible to determine the rotation angle of the marker. Thus, the problem of determining the rotation angle of the manipulator is reduced to the problem of determining the rotation angle of the marker, making simultaneous and contiguous with the man what pulation rotation. The image processor included in the electronic system 23 (figure 10) according to the algorithm (figure 4), determines the angle of rotation of the marker, while the display shows the absolute value of the angle of rotation of the manipulator. Thus, the technical result: the creation of such a device construction in which by means of a miniature and wireless manipulator is also possible to transmit control signals.

To improve ease of use miniature manipulator, such as handwriting, on the surface of the manipulator in the center of the upper part, the recess 21 (pigv). Setting in the recess, for example, the writing portion of the pencil, make familiar with the writing of the text of the motion, carrying with it the rod pencil manipulator. In addition, the presence of the manipulator strip 8 with the outer side of the layer of material with a low coefficient of friction (not shown), and the aperture 14 of the marker such layer, made for example of Teflon or PTFE, reduces the amount of force required to move the manipulator. In addition, the presence of the marker node lock spontaneous movement allows you to remove the optical drive from the working surface, for example, for cleaning, and the marker remains fixed in a stationary position. So about what atom, provided technical result: improved usability miniature manipulator device.

Given that the elements of the device, namely the manipulator, the wall of the housing of the device, the matrix photodetector, a light emitting marker and the panel may have a thickness of not more than 1 mm[3], [6], [7], the total thickness of the device can be not more than 5 millimeters, with linear dimensions equal to the dimensions of the working surface (figa). For example, in the cellular phone device can be installed instead of the control panel with switches (figa, b). Thus, the technical result: the device is integrated with the controlled electronic device.

Examples of specific performance.

Example 1.

On figa showing: 1 - device 2 - matrix photodetector, 3 - arm, 4 - marker, 5 - light source.

The pointing device is a permanent magnet made in the form of a disc with two-pole axial magnetization. The marker is a permanent magnet made in the form of a disc with two-pole axial magnetization. Transmission of control signals is the same as pressing the left and right buttons of the mouse, by pressing the dip switches located on the surface of the device (not shown).

Figure 5 depict Alena block diagram of the operation of the device of example 1.

The device operates as follows.

On the working surface of the device 22 to produce the movement of the manipulator 3, applying to it the force of a finger (figa). As the disk magnets 3; 4 manipulator and token have axial magnetization, the same size and unlike poles facing towards each other, between the arm 3 and marker 4 force of gravity holding the token to the matrix photodetector 2, and carried him behind the arm movements. Thus, synchronous and adjacent to the translational motion of the manipulator 3 and the working surface 22 in the inner space of the housing 1 of the device on the surface of the matrix photodetector 2 is the movement of the marker 4. When this handle when moving overlaps the luminous flux from the light source 5 to the matrix photodetector 2, which is the receiver of the light signal of the image processor included in the electronic device 23 (figure 10), and forms on the photosensitive elements of the photodetector array shadow.

Processor image processing, part of the electronic device 23 (figure 10), according to the algorithm, scans in the form of a targeted survey of the elements of the photodetector array. The comparator included in the processor (not shown), depending the tension on the elements of the matrix, assigns numeric values.

The voltage U on the photosensitive elements of the matrix: U=f(E).

Where

E - light.

The elements of the matrix, is completely blocked by a token, U=0, since the illumination for these elements E=0, and elements set to 0. On the elements that are not closed from the light source marker, U≠0, as illumination for these items Th≠0, and the elements are assigned the value 1. Thus, to determine the current coordinate position of the center of the manipulator is sufficient to determine the coordinates of the elements of the matrix, trapped in the shadow formed by the marker, with U=0 and set the algorithm to compute the coordinates of its center.

Determination of the current coordinates of the position of the center marker may, for example, according to the algorithm shown in figa, b. For example, let the matrix photodetector made with cardinality M·N, equal to 300×300 has a spacing of elements: h=0.1 mm, While the size of the matrix photodetector will be 30 × 30 mm Radius marker R equal to, for example, 5 mm, and a computing algorithm assigned a numerical value: R=R/h. When the above value of h is R=50. To determine the current coordinates of the manipulator determine the current coordinates of the projection of the center marker on the plane of the photodetector array.

The scan cycle of the matrix begins Salamanca with coordinates: X=O; Y=O (figa) and is carried out line by line in the direction of increasing Y step R to detect on the line Yo=Rnitem Xabout; Yowith a voltage of U=0. Next is line-by-line scanning of elements in a rectangular area with dimensions R·(R-1) from the element Xabout; Yo-(R-1) in the direction of the element Xabout+R; Yobefore the discovery on the line Ymin element with a voltage of U=0 (figb). Next is the scan line Ymin+R until you find the item Xmin with a voltage of U=0. The desired projection of the center marker on the plane of the matrix is the matrix element Of' with coordinates X=Xmin+R; Y=Ymin+R, data which is recorded in the random access memory of the processor. Thus, the absolute position coordinates of the manipulator is defined. Accuracy of coordinate determination: ε=[OO']≤h, when using the above matrix will be: ε≤0.1 mm, the Frequency of scanning of the matrix can be up to 30 frames/s, which is associated with the persistence of human vision, because the processor determines the absolute position coordinates of the manipulator, which will always be clearly displayed. Everyone coming into the processor frame will represent a sequence of data with a maximum volume: V≈M·(N/R-1)+R2bits.

Where

M and N is the number of elements Patricio rows and columns, respectively. In the case of applying the above matrix V≤4 kbps or V≤15 kbit per second. Low volume of data transferred in a data processor allows you to use your device to control cell phones and other electronic devices with a low clock frequency of the Central processor that will allow you to use it to enter information in a simple electronic devices.

After each scan cycle, the CPU transmits data about the coordinates X; Y chip controller (not labeled), part of the electronic device 23 (figure 10). The chip-controller is an element of negotiation between the electronic input device and a managed device. When this chip controller receives the control signals from located on the device switches (not shown), similar to the clicking of the mouse (figure 5). In the case of using the device to control the cursor of the computer chip controller converts the position data of the marker in the data being transmitted on the interfaces PS/2 or USB signals. The computer, using the device driver on the basis of received on these interfaces information, moves the cursor on the monitor screen in accordance with movement of the manipulator, for example, to select points IU the s, and executes commands corresponding to the pressing on the switch.

Figure 4 the above algorithm presented in the form of a flowchart. Part 1 - find the first item under the shadow formed by the marker. Part 2 - find the Y values for the projection of the center marker. Part 3 - the search for value X. Part 4 is not executed.

Example 2.

On fehb and 1B showing: 1 - device 2 - matrix photodetector, 3 - arm, 4 - marker, 5 - light, 7 - sensor sensitive to the magnetic field of the marker, 8 - strip manipulator, 9 - permanent magnet manipulator, 11 - cap manipulator, 14 - opaque aperture marker, 15 - permanent magnet marker, 20 - transparent window in the aperture 21 is a recess on the surface of the hood.

The permanent magnets of the manipulator and marker 9; 15 made in the form of a square frame, with two-pole axial magnetization (figa). The spacer arm 8 and the diaphragm 14 with the outer side includes a layer of material with a low coefficient of friction (not shown), which is Teflon. As a sensor sensitive to the magnetic field of the marker 7, uses the magnetic contact reed switch. Transmission of control signals is the same as pressing the left and right buttons of the mouse, by pressing the dip switches located on the surface of building the sa device (not shown).

Figure 6 presents a flowchart of the operation of the device according to example 2.

The device operates as follows.

On the working surface of the device 22 (figb and 1B) is produced by moving the pointing device 3, applying the force of the finger to the cap 11. If you need a more precise positioning of the manipulator or for handwriting, the recess 21 is set, for example, the writing portion of the pencil and make the usual when writing the text of the motion, carrying with it the rod pencil manipulator. The presence of the strip 8, whose outer side has a layer of material with a low coefficient of friction (not shown), significantly reduces the amount of necessary for movement of the manipulator efforts. As a framework magnets 9; 15 of the manipulator and the marker have axial magnetization, the same size and unlike poles facing towards each other (figa), between the arm 3 and marker 4 force of gravity holding the photosensitive matrix 2 marker, and carried him behind the arm movements. As the magnets of the manipulator and the marker have the shape of a square frame, the rotation of the arm 3 under the influence of effort on the part of the fingers, around its vertical axis of symmetry, and with it the magnet 9 is the change of the magnetic flux in the gap formed by the IAHS is Tami manipulator and marker. When this occurs the moment of forces, causing the magnet 15, and with it the marker 4 to a rotary motion in the same direction (figa). Thus, synchronous and adjacent to the translational and rotational motion of the manipulator 3 and the working surface 22, in the inner space of the housing 1 of the device on the surface of the matrix photodetector 2 is the movement of the marker 4. The diaphragm 14 with the outer side of the layer of material with a low coefficient of friction (not shown), increases the clock time when the movement of the manipulator and the token and reduces the amount of necessary for movement of the manipulator efforts. When approaching marker 4 to the area where the sensor 7, is sensitive to the magnetic field of the marker (figb), the magnetic field of the permanent magnet marker affects the sensor, resulting in its activation and switching circuits of the electronic system 23 (figure 10), for example, enable a managed device. When approaching the marker to the same sensor located in a different place, there is a sensor is triggered, for example, disabling the controlled electronic device. In addition, the marker 4 motion overlaps the aperture 14 luminous flux from the light source 5 to the matrix photodetector 2, which is the receiver of the light signal of the image processor, the WMO is asego in the composition of the electronic device 23 (figure 10). When this handle forms on the photosensitive elements of the photodetector array shadow in accordance with the shape of the diaphragm 14, which may have at least one transparent window 20 (figv and figa).

Processor image processing, part of the electronic device 23 (figure 10) according to the algorithm, scans in the form of a targeted survey of the elements of the matrix. The comparator, which is part of the processor, depending on the voltage on the elements of the matrix that assigns numeric values.

The voltage U on the photosensitive elements of the matrix: U=f(E).

Where

E - light.

The elements of the matrix, is completely blocked by the opaque areas of the diaphragm token, U=0, since the illumination for these elements E=0, and elements set to 0. On the elements that are not closed from the light source aperture token, U≠0, as illumination for these items Th≠0, and the elements are assigned the value 1. Thus, to determine the current location coordinates of the center of the manipulator is sufficient to determine the coordinates of the elements of the matrix, trapped in the shadow formed by the marker, with U=0 and set the algorithm to compute the coordinates of its center. To determine the rotation angle of the arm is sufficient to determine the coordinates of the elements of the matrix appeared on the transparent window aperture token, U≠0 and set the algorithm to calculate the current angle value.

Determination of the current coordinates of the position of the center marker and angle of rotation may, for example, according to the algorithm shown in figa, b. For example, let the matrix of photodetectors made with cardinality M·N, equal to 300×300 has a spacing of photosensitive elements: h=0.1 mm, While the size of the matrix will be 30 × 30 mm Aperture 14, shown in (figa), is an opaque disk of radius R. In this case, as it applies a square magnet, for computing algorithm assigned an integer numerical value: R≥√0.5L/h.

Where

L is the side length of the used magnet in the token.

For example, L=7 mm, then R=50. The diaphragm is a transparent window 20 (figa) in the form of an aperture with radius rabout≥2b at a distance r from the center of the marker O. To determine the current coordinates of the manipulator determine the current coordinates of the projection of the center marker on the plane of the matrix photodetector. To determine the angle of rotation of the manipulator determine the current coordinates of the projection of the transparent window marker on the plane of the matrix photodetector.

The scan cycle of the matrix begins with the element with coordinates: X=O; Y=O (figa) and is carried out line by line in the direction of increasing Y step R to detection on the line is e Y o=Rnitem Xabout; Yowith a voltage of U=0. Next is line-by-line scanning of elements in a rectangular area with dimensions R·(R-1) from the element Xabout; Yo- (R-1) in the direction of the element Xabout+R; Yobefore the discovery on the line Ymin element with a voltage of U=0 (figb). Next is the scan line Ymin+R until you find the item Xmin with a voltage of U=0. The desired projection of the center marker on the plane of the matrix is the matrix element Of' with coordinates X=Xmin+R; Y=Ymin+R, data which is recorded in the random access memory of the processor. Thus, the absolute position coordinates of the manipulator is defined. Accuracy of coordinate determination: ε=[OO']≤h, when using the above matrix will be: ε≤0.1 mm

After determining the coordinates X; Y scans clockwise matrix elements are located near the circle with centre O' and radius r, with a step scan μ'corresponding to the condition: μ'=360°/p, a sin μ'≥4rabout/r.

Where

p is an integer.

This condition allows us not to commit changes the angle at random local rotations occurring at the time of linear movement of the manipulator, for example p=12, μ'=30°. The coordinates of the scanned elements are calculated according to the formula XC=X+Sc; Yc=Y+SS.

Where

with the step number of the circular scan, and 0≤≤p;

Sc, Cc integers and: Sc≈r·sin(μ'· (C) and SS≈r·cos(μ'·).

All values of Sc and Cc are stored in the ROM of the processor and retrieved for use in the arithmetic - logic unit of the processor, when determining the coordinates XC; Yc growth value C. the Value s=0 corresponds to the angle μ=0 and the element of the matrix A, with coordinates X; Y+r. If all the items being scanned XC; Yc when the value changes from 0 to p has a voltage of U=0, this means that the projection of the window aperture in the plane of the matrix is between the scanned elements, with the value defined in the previous scanning cycle, does not change. When the detection element XC; Yc for which U≠0, in the operating memory of the processor device is fixed with the new value, which will definitely match the angle μ=μ'·C. Thus the absolute value of the angle of rotation of the manipulator is defined up to a step scan μ'.

The frequency of scanning of the matrix can be up to 30 fps because the processor determines the absolute coordinates of the position of the manipulator, which will always be clearly displayed. Everyone coming into the processor frame is p is establet a sequence of data with a maximum volume of V≈ M·(N/R-1)+R2bits.

Where

M and N is the number of elements of a matrix in rows and columns, respectively.

In the case of applying the above matrix V≤4kbit or V≤15 kbit per second. Low volume of data transferred in a data processor allows you to use your device to control cell phones and other electronic devices with a low clock frequency of the Central processor.

After each scan cycle, the CPU transmits data about the coordinates X; Y, and the step number of the circular scan, the chip controller, part of the electronic device 23 (figure 10). The chip-controller is an element of negotiation between the electronic input device and a managed device. When this chip controller receives the control signals from located on the device switches (not shown), similar to the clicking of the mouse, and the signals from sensors that are sensitive to the magnetic field of the marker 7 (figb). In the case of using the device to control the cursor of the computer chip controller converts the position data of the marker in the data being transmitted on the interfaces PS/2 or USB signals. The computer, using the device driver on the basis of received on these interfaces information, remesal the cursor on the monitor screen in accordance with movement of the manipulator, for example, to select menu items. In addition, the computer executes commands corresponding to the rotation angle of the manipulator, similar to the scroll wheel of the mouse, and executes a command corresponding to the pressed the switch and the sensor sensitive to the magnetic field of the token.

Figure 4 the above algorithm presented in the form of a flowchart. Part 1 - find the first item under the shadow formed by the marker. Part 2 - find the Y values for the projection of the center marker. Part 3 - finding the values of X for the projection of the center marker. Part 4 - search values from step a circular scan.

Example 3.

The device differs from the device described in example 2, the design of the manipulator and the marker. On Figg shown: 9; 10 - permanent magnets of the arm 15; 16 - permanent magnets marker, 17 - disc, 18 - disc, 19 - holder.

The permanent magnets 9 and 15 are made in the form of a ring with multi axial magnetization. Permanent magnets 10 and 16 in the form of a ring, with two-pole axial magnetization. The disk 17 has outer sides of the layer of material with a high coefficient of friction (not shown), which is used, for example, silicone. The washer 18 is made of an elastic material, for example brass.

The device operates similarly to the device described in example 2, the ri this magnetic connection between the arm 3 and marker 4 is formed by a ring magnets 9 and 15 and, additionally, the ring magnet 10 and 16. Ring magnets 9; 15 are axial magnetization, the same diameters and unlike poles facing towards each other (figb)that leads to attractive forces between the manipulator and the marker and draws the latter followed the movements of the manipulator. As the magnets 9; 15 are multi with an equal number of poles, the rotation of the arm around its vertical axis of symmetry, and with it the magnet 9 is the change of the magnetic flux between the poles and the poles of the magnet 15. When this occurs the moment of forces, causing the magnet 15, and with it the token into rotational movement in the same direction. Ring magnet 10 fixed motionless in the center of the annular magnet 9, the gasket 8. Ring magnet 16 is fixed on the elastic washer 18 held by the holder 19, which is fixed motionless in the centre of the ring magnet 15, the gasket 14 (high). As the magnets 10; 16 with axial magnetization, the same diameters and unlike poles facing towards each other (figb), this causes a force of attraction between them and increases the clock time between the manipulator and the token in their motion. When removing the manipulator 3 (figb) from the working surface, for example, for cleaning, magnetic inter the step between the magnets of the manipulator and the marker disappears, the magnet 16 (Figg under the influence of the bend washer 18 departs from the strip 14 and rests against the disk 17 in the light source 5, a light-emitting panel. Thus, as the disk 17 from the outer side includes a layer of material with a high coefficient of friction (not shown), a marker fixed to the stationary, in the gap between the matrix photodetector 2 and the light-emitting panel 5. When installing the optical drive on a working surface adjacent to the marker, between the magnet manipulator 10 and the magnet marker 16, a force of attraction, while the elastic washer 18 sags recorded therein the magnet 16, and with it the disk 17 depart from the light emitting panel 5. Thus, the token contains a node for blocking inadvertent movement of the holder 19, the elastic washer 18, an annular magnet 16 and the disk 17 (high).

Example 4.

The device differs from the device described in example 3, the design of the manipulator and the presence sensor of acoustic oscillations of the housing. On fehb and 1D shown: 6 - sensor acoustic oscillations corps, 11 - cap, 12 - pusher, 13 - emitter pulse audio signals.

The cap 11 is made of elastic material, for example brass. The plunger 12 is made of elastic material, for example silicone. The emitter of the audio signal 13 is made in the form of a membrane and madeof elastic material, for example of brass. Figure 7 presents a flowchart of the operation of the device in example 4.

The device operates similarly to the device described in example 2 and example 3. While pressing on the cap 11 with the force required to move the manipulator along the working surface, the cap flexes, the plunger 12 exerts pressure on the membrane 13 facing the convex side of the cap and installed in the annular magnet 10 parallel to its base. With increasing efforts to pressure, with the purpose of the input control signal, the plunger prohibit the membrane in the opposite direction. The deflection of the membrane occurs abruptly and at full amplitude. In this membrane 13 (high) emits a sound pulse, which represents a damped acoustic oscillations. Decreasing the amount of force pressing on the cap 11, the membrane returns to its original position, also radiating a pulse of sound. Used membrane in the emitter pulse audio signals similar to the membranes installed in the switches of the mouse, which is also when clicking on the dip switch "mouse" emit sound, but also commute the electrical circuit.

When the sound radiation is the propagation of longitudinal mechanical waves through the magnet 10, the gasket 8, block 1 (high), the sensor of acoustic oscillations of the casing 6 (figb), which is the tsya sensitive element processing unit pulsed acoustic signals (not labeled), part of the electronic device 23 (figure 10). For signals radiated by the membrane 13 (high) and received by the sensor 6, the characteristic of stable amplitude and shape of the frequency spectrum, due to the coefficient of elasticity of the membrane and its dimensions, as well as similar properties of other elements of the device located along the path of the sound waves. In this case the frequency characteristics of the signal does not depend on the location of the pointing device on the working surface of the device, since the natural frequency of oscillation of radiating membrane 13 is much higher natural frequencies of the device 1, due to the fact that the dimensions of the working surface of the device is significantly larger than the membrane of the emitter pulse audio signals. In the block processing of pulsed acoustic signals (figure 10) includes an acoustic relay (not shown). The block processing of pulsed acoustic signals provides a selective selection signals, for example, on the basis of the high-pass filter HPF and acoustic relay switches the input circuit chip controller (figure 10). Clicking on the hood of the manipulator 11 (high), a pulse signal with a characteristic oscillator frequency and amplitude corresponding to the input parameters of the processing unit pulsed acoustic signals, translates offering the e relay in the state - "enabled", which is equivalent to pressing the left button of "mouse". The following active pulsed acoustic signal arising from the weakening of the efforts of the pressure on the cap, puts the relay in the off state, which is equivalent to releasing the left button of "mouse". The processing unit pulsed acoustic signals can be executed multi-channel and configured on different characteristic frequencies of multiple emitters pulsed sound signals placed in the arm, which is equivalent to the use of additional buttons in the mouse. For transmission of control signals is the same as pressing the right button of the mouse may be clicked your finger on the device 1. In this case, the processing unit pulsed acoustic signals (figure 10) is two-channel, where the second channel is configured for low frequency sound pulse that occurs when you click your finger on the device.

On Fig shows the timing diagram for the signals received by the processing unit pulsed acoustic signals during operation of the device. The voltage Ua is an analog signal produced by the sensor of acoustic oscillations of the casing 6 by pressing and releasing the upper part of the manipulator device. The voltage Um is a processed frequency filter signal,with Um=f(Ua, ν).

Where

ν - the characteristic frequency for the applied acoustic pulse emitter.

The voltage Ud represents the signal level of the acoustic output relay, with Ud=f(Um, to).

Where

to the time between pressing and releasing the mouse.

Time t1 displays double clicking on the cap manipulator, functionally similar to double clicking the left button of the mouse. The voltage Ua' is an analog signal is required amplitude generated by click of your finger on the device. The voltage Ud' represents the signal level of the acoustic output relay on the second channel, while Ud'=f(Ua', λ).

Where

λ characteristic frequency occurring when clicking sound pulse. When it ν>>λ. Thus, the acoustic properties of the membrane and the enclosure allow the use of radiated with their help pulsed sound vibrations to input control signals.

As used in the device materials and components are manufactured and mass-produced, the inventive device can be produced at the enterprises of electronic industry standard technologies. Thanks to its simple and compact design of the inventive device will be widely used in electronic devices, in particular the mobile telephone apparatus, computers, remote controls, household and other technological devices.

Sources of information

1. The JP patent No. 10171582 A (WACOM CO LTD), 26.06.1998.

2. The US patent No. 4751505. 14.06.1988. 340/710; 178/18; 250/221 (prototype).

3. Internet resource: www.ssga.ru/erudites_info/ccd_and_cmos/oes/63/00 .html.

4. Larionov A. M., Hornets NN. Peripherals in computing systems, M., 1991.

5. Mazur A.I., V. Grachev. Electrochemical indicators, Meters, Radio and Communication, 1985.

6. Internet resource: www.glowlight.ru.

7. Internet resource: www.valtar.ru.

8. Burke GW reference manual for magnetic phenomena, M., 1991.

9. Acoustic switch, Radio", 1985, №2; 1986, №6-8.

10. Borovsky, VP Reference schematic for the radio Amateur. K., Technology, 1987.

1. The input device information in electronic devices containing a driven element, a casing installed therein a light source and an electronic system containing electrically connected matrix photodetector, an image processor, transmitting the position data chip controller, designed to coordinate the operation of the electronic system and the managed device, wherein the controlled element is a miniature manipulator is placed on the surface of the housing and containing at least one permanent magnet, while the light source is in fo the IU flat light-emitting panel, mounted opposite and parallel to the matrix photodetector, between the light source and said photodetector placed a marker containing at least one permanent magnet and configured to move parallel to the surface of the above-mentioned photodetector under the influence of the magnetic force of attraction on the part of the manipulator, and the image processor is designed to determine the coordinate position of the marker by its shadow on the surface of the specified photodetector.

2. The device according to claim 1, characterized in that the device additionally has at least one sensor sensitive to the magnetic field of the marker and electrically connected with the chip-controller.

3. The device according to claim 1, characterized in that the device additionally includes a probe acoustic oscillations of the body, when this electronic device contains additional processing unit of the pulse of acoustic signals, electrically associated with the specified sensor and chip controller.

4. The device according to claim 1, wherein the manipulator further comprises at least one emitter pulse audio signals in the form of an elastic membrane.

5. The device according to claim 1, characterized in that the surface of the manipulator in the center of the top of the hour and made a dent.

6. The device according to claim 1, characterized in that the manipulator and the marker also include an outer layer of material with a low coefficient of friction.

7. The device according to claim 1, wherein the marker further comprises a node lock spontaneous movement.

8. The device according to claim 1, characterized in that the marker is made with a possibility of rotation and translation parallel to the surface of the matrix photodetector under the influence of the magnetic force of attraction on the part of the manipulator, the token further comprises an opaque aperture, which has at least one transparent window, and the image processor is designed to determine the position and angle of the marker by its shadow on the surface of the specified photodetector.

9. Device according to any one of claims 1 to 8, characterized in that it is integrated with the controlled electronic device.



 

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