System for communication by way of repeatedly transmitted messages, and stations for use in such a system
US4541095A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Feb 11, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A description is given of a system for communication between a transmitting station (30) and a receiving station (33) by way of a message which consists of a direct succession of a number of identical code words. Each message uses only a comparatively small part of the capacity of the message channel. Each code word has at least a predetermined minimum Hamming distance with respect to any other code word, including the cyclic transpositions of the latter code word. Therefore, for the detection and reproduction of a code word it is not necessary to realize word synchronization and a given category of errors can still be detected and/or corrected. The code words may concern, for example, a transmitter or program identification in a broadcasting system or a paging code for a receiving station in a system comprising selectively addressable receiving stations as in a paging system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.