Method and apparatus for selectively encoding digital messages in a communication system
US5652783A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Jun 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/187
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system providing selective encoding of digital messages (408) comprising a plurality of transmitting devices (116) and a plurality of receiving devices (122). The transmitting devices (116) transmit an encoded address (404), encoded message vector (406) in a first portion of the message, and digital message (408) in a second portion of the message. The digital message (408) is encoded in the second portion of the message with an error correction code if the digital message is a data message (414), and without the overhead of an error correction code if the digital message (408) is a voice message (410). The receiving device (122) decodes the encoded address (404), encoded message vector (406), and digital message (408) transmitted by the transmitting devices (116) in the first and second portion of the message. The receiving device (122) determines the encoding method of the digital message (408) based on the message type received in the message vector (406), and thereafter decodes the digital message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.