Communication apparatus
US5239576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1991 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Sep 18, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/32728
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Communication equipment in which first and second telephone number data is registered by a single selection key and first and second telephone number data is selected and dialed according to selection key input includes a data communication device and a conversation communication device. A first detector detects the hook state of the conversation communication device and a second detector detects the presence or absence of data. In response to the selection key input to dial the selected telephone number, a controller selects either the first or the second telephone number data according to the operation of the first and second detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.