Two-way radio with voice storage
US5109525A · kind A · utility
13Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1991 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Jan 23, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/45
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A two-way radio includes a receiver having a squelch circuit for determining if a communication channel is available. A transmitter is provided for transmitting voice messages on the channel. When the communication channel is available, voice signals are directed from a microphone to the transmitter for transmission. When the communication channel is not available, the voice signals are automatically directed to a digitizer there they are digitized. The digitized voice signals are stored in a memory for later transmission when the channel becomes available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.