Signal equalization selector
US4405836A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1982 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Jan 4, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A combination radio and tape player is disclosed which includes a signal equalization selector wherein the audio program selection switches which select either an AM or FM radio mode or a tape player mode of operation also simultaneously select various different sets of stored control signals which implement predetermined audio signal equalization in accordance with the type of audio mode of operation (program) that was selected. This is accomplished by the use of a random access memory which stores three pluralities (sets) of control signals, each plurality of control signals corresponding to a predetermined desired equalization for either the AM, FM or tape player modes of operation of the combination radio and tape player. Manual controls are provided which allow selective adjustment of the equalization provided in any of the AM, FM or tape player modes of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.