Manual tuning pulse generator
US4263581A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1978 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Jun 20, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J1/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A manual tuning pulse generator for use in an electronic tuning control device of a radio receiver having a tuning circuit, which control device utilizes an up/down counter, is disclosed which comprises a first manual means for selectively producing an up count signal and a down count signal to be supplied to the up/down counter, a second manual means ganged with said first manual means for producing a variable control signal and means responsive to the variable control signal to produce a clock pulse signal having a variable frequency, the pulses of the clock pulse signal being adapted to be counted up or down by the up/down counter the content of which is utilized to shift the tuning frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.