Multiple-frequency programmable transmitter
US6078271A · kind A · utility
52Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C19/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A programmable transmitter includes a receiver for receiving a coded signal at a desired frequency. The code is stored in memory during a learning mode and is then retransmitted sequentially at a plurality of frequencies, including said desired frequency. During this time, the operator observes the device to be operated and indicates to the transmitter when the controlled device performs the desired function, i.e., when the desired frequency is transmitted. At that time, the operator presses a button on the transmitter, and the transmitter stores the most recently transmitted frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.