Electrical signal generators
US4147993A · kind A · utility
4Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Nov 28, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J7/065
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electrical signal generator for generating signals at specific frequencies includes means for producing an adjustable frequency output, adjusting means for causing changes in the output frequency, and control means for adjustably pre-selecting the sizes of the frequency changes. In this way, the operator can be provided with a frequency changing control which, when operated, causes the output frequency to change in predetermined steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.