Input device for electronic apparatus
US4395704A · kind A · utility
11Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1981 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Sep 21, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M11/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An input device for electronic apparatus includes key signal output lines each having plural key switches connected thereto and circuitry for separating the key signals into specific key signals thereby identifying the plural key switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.