RussianPatents.com
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Method for transferring messages in communication systems. RU patent 2260915. |
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FIELD: communication engineering. SUBSTANCE: method includes encoding input information at transmitting side with interference-resistant code, to which symbols of synchronizing series are added and received symbols series is sent to communication channel, at receiving side in received series of symbols synchronizing series is detected and cyclic synchronization of received series of symbols is performed, then interference-resistant code is singled out, decoded with detection and correction of errors in interference-resistant code and decoded information is given to message receiver, while tat transferring side symbols of synchronizing series are formed by transformation of symbols of checking portion of interference-resistant code, and at receiving side detection of synchronizing series is performed by checking match of functional dependence of synchronizing series and checking portion of interference-resistant code. EFFECT: higher trustworthiness. 2 cl, 1 dwg
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Method for sound broadcast signal transmission over duplex digital communication channel / 2259637 Proposed method for transmitting sound broadcast signals over duplex digital communication channel includes following operations: on sending end N analog sound broadcast signals are converted into digital signals which are compressed by way of coding in frequency band and conveyed at speed of V kbit/s to receiving end whereon they are converted into analog sound broadcast signals; M reverse-direction analog sound broadcast signals are converted into digital signals which are shaped by means of instant or almost instant companding, or differential pulse-code modulation (DPCM), or delta modulation (DM) and transmitted at same speed of V kbit/s. |
Device and method for encoding/decoding in communications network / 2258306 Coder encodes series of information bits at given encoding speed and outputs encoded symbols. Controller control coder so that when length of frame of series of information bits is first length, coder outputs encoded symbols, and when length of frame of series of information bits is second length, coder outputs partial symbols from encoded symbols, while second length is less than first length. |
Device and method for check transmission for increasing carrying capacity of transmission in information transmitting system / 2251813 Method includes selecting one combination among given combinations, appropriate for several or every generated symbols of code word to transmit generated symbols of code word with length of sub-packet, determined in accordance to data transfer speed, information, appropriate for data transfer speed, is read, also based on length of sub-packet and chosen combination, from a table, wherein identification information, pointing at data transfer speed, sub-packet length and selected combination, is, is previously displayed for given information, and generated code word symbols are transmitted in accordance to read information and in accordance to selected combination. |
Device and method for generating codes in communication system / 2251794 Method includes segmentation of length N of quasi-complementary turbo-codes on preset amount of sections, determining identifiers of sub-code packets appropriate for segmented portions, setting of said packets separated for initial transfer of sub-code, calculation of number of remaining symbols in form N-Fs, where N - length of quasi-complementary turbo-codes, and Fs - position of start symbol of sub-code of quasi-complementary turbo-codes, determining position of symbol of remaining symbols in amount equal to sub-codes amount, which have to be sent and serial transfer of sub-code symbols from position of starting symbol Fs to position of last symbol Ls. |
Device and method for generating codes in communications system / 2251793 Method includes generating sets of sub-codes of quasi-additional turbo-codes with given encoding speeds, and given sub-codes are reorganized as a set of sub-codes with another encoding speed for use in next transfer of sub-code with given encoding speed. |
Noise-immune cyclic code codec / 2251210 Proposed noise-immune cyclic code codec designed for data transfer without pre-phasing has on sending end code-word information section shaper incorporating shift-register memory elements, units for computing verifying parts of noise-immune code of code-word information section, and modulo two adder of code-word information section shaper; code-word synchronizing section shaper and modulo two adder of code-word synchronizing section; on receiving end it has binary filter incorporating binary-filter shift register memory elements, computing units for verifying parts of binary-filter noise-immune code, and binary-filter modulo two adder; shift register of code word information section; decoder; accumulator; error correction unit; unit for shaping synchronizing section of code word; and modulo two adder units. |
Coding/decoding device and method for mobile code-division multiple access communication system / 2250563 Proposed device and method for mobile code-division multiple access communication system including device for transferring channel of backward-link transmission speed indicator afford generation of optimal code words ensuring optimal coding for all types of coding procedures from optimal type (24.1) up to optimal coding procedure 24.7 and supporting all optimal-coding devices. |
Coding/decoding device and method for mobile code-division multiple access communication system / 2250563 Proposed device and method for mobile code-division multiple access communication system including device for transferring channel of backward-link transmission speed indicator afford generation of optimal code words ensuring optimal coding for all types of coding procedures from optimal type (24.1) up to optimal coding procedure 24.7 and supporting all optimal-coding devices. |
Noise-immune cyclic code codec / 2251210 Proposed noise-immune cyclic code codec designed for data transfer without pre-phasing has on sending end code-word information section shaper incorporating shift-register memory elements, units for computing verifying parts of noise-immune code of code-word information section, and modulo two adder of code-word information section shaper; code-word synchronizing section shaper and modulo two adder of code-word synchronizing section; on receiving end it has binary filter incorporating binary-filter shift register memory elements, computing units for verifying parts of binary-filter noise-immune code, and binary-filter modulo two adder; shift register of code word information section; decoder; accumulator; error correction unit; unit for shaping synchronizing section of code word; and modulo two adder units. |
Device and method for generating codes in communications system / 2251793 Method includes generating sets of sub-codes of quasi-additional turbo-codes with given encoding speeds, and given sub-codes are reorganized as a set of sub-codes with another encoding speed for use in next transfer of sub-code with given encoding speed. |
Device and method for generating codes in communication system / 2251794 Method includes segmentation of length N of quasi-complementary turbo-codes on preset amount of sections, determining identifiers of sub-code packets appropriate for segmented portions, setting of said packets separated for initial transfer of sub-code, calculation of number of remaining symbols in form N-Fs, where N - length of quasi-complementary turbo-codes, and Fs - position of start symbol of sub-code of quasi-complementary turbo-codes, determining position of symbol of remaining symbols in amount equal to sub-codes amount, which have to be sent and serial transfer of sub-code symbols from position of starting symbol Fs to position of last symbol Ls. |
Device and method for check transmission for increasing carrying capacity of transmission in information transmitting system / 2251813 Method includes selecting one combination among given combinations, appropriate for several or every generated symbols of code word to transmit generated symbols of code word with length of sub-packet, determined in accordance to data transfer speed, information, appropriate for data transfer speed, is read, also based on length of sub-packet and chosen combination, from a table, wherein identification information, pointing at data transfer speed, sub-packet length and selected combination, is, is previously displayed for given information, and generated code word symbols are transmitted in accordance to read information and in accordance to selected combination. |
Device and method for encoding/decoding in communications network / 2258306 Coder encodes series of information bits at given encoding speed and outputs encoded symbols. Controller control coder so that when length of frame of series of information bits is first length, coder outputs encoded symbols, and when length of frame of series of information bits is second length, coder outputs partial symbols from encoded symbols, while second length is less than first length. |
Method for transferring messages in communication systems / 2260915 Method includes encoding input information at transmitting side with interference-resistant code, to which symbols of synchronizing series are added and received symbols series is sent to communication channel, at receiving side in received series of symbols synchronizing series is detected and cyclic synchronization of received series of symbols is performed, then interference-resistant code is singled out, decoded with detection and correction of errors in interference-resistant code and decoded information is given to message receiver, while tat transferring side symbols of synchronizing series are formed by transformation of symbols of checking portion of interference-resistant code, and at receiving side detection of synchronizing series is performed by checking match of functional dependence of synchronizing series and checking portion of interference-resistant code. |
Method and device for estimated non-binary encoding with repeat and accumulation and of space-time encoding / 2262192 Transferred data are divided on separate frames, each of which contains mN bits, and each frame is additionally segmented on N blocks, each of which contains m bits. N blocks are transformed to N non-binary Galois field elements, GF(2m). Aforementioned N non-binary symbols are repeated with repeat coefficient r. rN symbols are multiplied by weight coefficients, being non-zero elements of GF(2m). rN estimated symbols are alternated and accumulated. rN of accumulated symbols are transferred to receiver, or, prior to transfer, reverse imaging of each of rN accumulated symbols to m bits is performed. |
Method for adaptive information transfer / 2264647 In the method, via channel with non-zero conductive ability a set of M stochastic (n,k,q) codes is used with correction of errors with guaranteed in any channel upper limit of decoding error possibility due to use for all codes of same code base q, each of codes is optimal for certain quality of channel, prior to information transfer conductive ability of channel is checked by transferring testing set, in form of q-base stochastic (n,1,q) code, conductive ability of channel is determined by pair-wise comparison of q-based symbols of received block of (n,1,q) code and counting number of matching symbols N, parameters n and k of optimal (n,k,q) code are selected with correction of errors, information exchange is performed by code blocks of selected code with correction of errors and detection of blocks with error repetition factor exceeding correcting ability of code, blocks are transferred again with uncorrected errors, share of blocks with uncorrected errors is calculated within range of analysis with length G of last received blocks, compliance of this share to range of optimality criterion of effective code is checked on basis of current state of channel, on exit beyond limits of code optimality code parameters n and k and checking matrix H are altered synchronously for sending and receiving sides of channel. |
Method and device for automatic choice of source noise-immune code / 2271604 Proposed method for automatic choice of source noise-immune code out of given set of noise-immune codes according to adopted code realization includes calculation of syndromes of adopted code realization (probably including sequence of erasing operations or including sequence of slack solutions) followed by counting number of other-than-zero syndromes for each of noise-immune codes out of given set, source noise-immune code being chosen as that for which this counted number of other-than-zero syndromes is lower than threshold value. |
Method for sound broadcast signal transmission over duplex digital communication channel / 2259637 Proposed method for transmitting sound broadcast signals over duplex digital communication channel includes following operations: on sending end N analog sound broadcast signals are converted into digital signals which are compressed by way of coding in frequency band and conveyed at speed of V kbit/s to receiving end whereon they are converted into analog sound broadcast signals; M reverse-direction analog sound broadcast signals are converted into digital signals which are shaped by means of instant or almost instant companding, or differential pulse-code modulation (DPCM), or delta modulation (DM) and transmitted at same speed of V kbit/s. |
Method for transferring messages in communication systems / 2260915 Method includes encoding input information at transmitting side with interference-resistant code, to which symbols of synchronizing series are added and received symbols series is sent to communication channel, at receiving side in received series of symbols synchronizing series is detected and cyclic synchronization of received series of symbols is performed, then interference-resistant code is singled out, decoded with detection and correction of errors in interference-resistant code and decoded information is given to message receiver, while tat transferring side symbols of synchronizing series are formed by transformation of symbols of checking portion of interference-resistant code, and at receiving side detection of synchronizing series is performed by checking match of functional dependence of synchronizing series and checking portion of interference-resistant code. |
Method of messages acceptance and transmission within communication system / 2369023 Method of transmission and receiption of messages within communication system pertains to communication technique and may be employed for reliable and noise-immune transmission of messages protected with noise-immune code. Technical result is achieved due to the fact, that on the transmitting site outlet sequence presenting bit-by-bit modulo n sum, two noise-immune codes and synchronising sequences are recurrently continued. On receiving site syndrome for the received sequence is calculated, synchronising sequence is detected and cycle synchronisation of the noise-immune code is set. There after bit-by-bit modulo n sum two accepted and synchronising sequences, noise-immune code and its recurrent continuation are separated. There after syndrome and its recurrent continuation preceding sliding window and following it for the rest of code symbols is calculated. When the number of zero syndrome components for the rest of the code symbols and its recurrent continuation exceeding threshold value, information is restored and given to the recipient. If threshold value is not exceeded, sliding window is off set by one symbol and computations are repeated from the beginning. |
Method of duplex transmission and receiving of information / 2373652 Invention relates to field of kermits, can be used in channels with different quality. In method of duplex transmission and receiving of information of side M and S in synchronous operation at each i-pitch there are simultaneously extracted received and transmitted frames by its fixed dimensions NM and NS by means of calculation in continuous sequence of received and transmitted bytes. Transmitters of sides are implemented with ability of telecontrol command (TCC) transmission, and receivers- with ability of recognition of TCC at receiving of running frame for establishment of vertical synchronisation of receivers relative to transmitters. |
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