Channel selecting device for CATV terminal unit
US4710971A · kind A · utility
36Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1985 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Aug 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J5/0263
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a channel selecting device for a CATV terminal unit, a channel code table is stored in a ROM of the terminal unit, and only a code arrangement in the channel code table is written in a RAM, whereby the rewriting data is compressed, the time required for the data writing operation is reduced, and the area occupied by the RAM decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.