Data communication method and the use of the method in a system for remotely reading meters
US6357034B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jan 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/15
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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; andcompressing 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≦2&ngr; and 2N≦B&xgr; so that the total number of chips x.n representing the coded value is less than 2.N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.