Remote control device using telephone circuit of electric apparatus
US4540851A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Dec 14, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/007
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A remote control device using a telephone circuit of an electric apparatus to remote-control the electric apparatus from a remote location. The electric apparatus is held operative by a loop means for automatically engaging a telephone set with the telephone circuit and a means for enabling the electric apparatus (VTR) when a specific signal or a password is supplied thereto. A remote control signal is supplied to operate means (IC-2) for selecting a desired channel of channels (1CH-12CH) and means (IC-3, 8) for presetting an operation time interval of the electric apparatus, so that the desired channel of the electric apparatus can be selected and the operation time interval can be preset from the remote location. Furthermore, the start time of the electric apparatus can be preset by the remote control signal from the remote location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.