Transmission method and apparatus for an infrared remote control system
US5574585A · kind A · utility
5Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Jun 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/195
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
For the transmission of signals triggered by long key depressions from a transmitter to a receiver, repeat signals (R) are transmitted while the key is held down. Releasing the key triggers a separate shift signal (S). A burst-pause modulation method is used to transmit the repeat and shift signals (R) and (S). Information units are defined here by different lengths of the burst intervals. The burst intervals and the burst packets are selected in such a way that infrared transmitters with a limited power supply can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.