Citizen's band radio with improved reception
US6038429A · kind A · utility
4Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1996 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Oct 7, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/64
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for improving the signal-to-noise ratio of a citizen's band (CB) radio is disclosed. A compander circuit is used in both the transmitting and receiving portions of the citizen's band radio. Demodulated incoming audio signals are expanded by the compander circuit to increase the dynamic range of the incoming audio signals. Outgoing audio signals from a microphone are compressed by the compander circuit to decrease the dynamic range of the outgoing audio signals before they are amplified and transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.