| 摘要 |
The present invention relates to a method of coding and/or decoding binary data for wireless transmission, particularly for radio transmitted data. A sequence of binary data, introduced at the entry to the coding machine with a class N coder (KOD) comprising a register (REG), a comparator (COMP) and a counter (CITN), where N is a number greater than or equal to 3, is separated into a sequence of binary data of the same value, so that the length of each such sequence is not less than one and not more than N, and so that the binary values of the data introduced at the entry to the coder (KOD) are compared with the value last received and recorded in it, the lengths of the same sequences at this entry are read up to the number N and, after reading to N, a sequence of binary data of a value opposite to the value at the entry to the coder (KOD) is inserted,; this inserted data sequence having a length M, where M is a number greater than or equal to one and less than N. At the same time the value recorded in the register (REG) is inverted and the length of the inserted sequence M is entered into the counter, while with each change in the register (REG) of the recorded value of the last bit received, registration of the length of the data sequence from the counter (CITN) to the buffer (BUF) is initiated, whereupon the lengths of the sequences of binary data are interpreted as binary impulses of length Xi1, Xi2 . . . XiN, where Xi1 to XiN are time constants of mutually different values, assigned to various lengths of sequences of the same binary data.; In decoding, the time lengths of the received impulses are first of all converted into sequences of the same binary data and then the inserted sequences of length M and the inserted control commands, as the case may be, are removed from these sequences. Where length M of a sequence of data entered is greater than one, binary control data can be inserted directly into the sequence of data as a sequence of data of length N, followed by a sequence of data of length L, where L is greater than one and less than M. In alternate embodiment of this invention, data can also be sensed at the entry to the coding or decoding machine, to detect the start of their transmission whereupon, after detection, the frequency of the transmitting and receiving equipment is synchronized by insertion, transmission and reception of a control sequence. The subject of the invention is also equipment for implementing the above-described method, wherein the equipment comprises a coder (KOD) block including mutually connected register (REG), comparator (COMP) and counter (CITN) blocks, wherein an interpreter (INTR) block is connected to the coder (KOD) block and a buffer (BUF) block can be connected between the coder (KOD) block and the interpreter (INTR) block. |
