Remote control adapter of electric equipment using telephone lines
US4656655A · kind A · utility
91Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Oct 23, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a remote control system of electric equipment, a remote control box which is to be incorporated with the electric equipment is adapted to the remote control adapter which accepts a telephone call and engages with the telephone line upon acceptance of a telephone call and receives many kinds of remote control signals through telephone line to control the remote box according to the tone decoder connected to microprocessing controlled switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.