Data communication method and the use of the method in a system for remotely reading meters
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United States of America Patent
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Mar 12, 2002
Grant Date -
N/A
app pub date -
Jan 16, 1999
filing date -
Jan 21, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method of communicating data in a system having a plurality of transmitters each adapted to transmit a radio signal, and a receiver situated at a distance from the transmitters to receive and process the signals transmitted by the transmitters, information for transmission being subdivided into N-bit symbols, the method consisting in: giving a numerical value to each symbol; and compressing the data using a CHIP encoding technique in which the values of the symbols are transposed to an encoded value having x digits in a base B, each digit subsequently being represented in the form of n chips, the base B, the number n of chips, and the number x of digits for an encoded value satisfying the following conditions: B.ltoreq.2.nu. and 2N.ltoreq.B.xi. so that the total number of chips x.n representing the coded value is less than 2.N.
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