|
| Number |
Title |
Comments |
| 5,343,499 |
Quadrature amplitude modulation synchronization method |
Detecting synchronization sequences in iDEN |
| 5,517,511 |
Digital transmission of acoustic signals over a noisy communication channel |
Digital Voice Systems, Inc. (DVSI) vocoder |
| 5,553,101 |
Demodulation logic unit adaptable to multiple data protocols |
Motorola method of data demodulation applicable to several systems |
| 5,557,606 |
Routing of voice communication at cell site in land mobile radio system |
Uniden Extended Sub-Audible Signaling |
| 5,754,734 |
Method of transmitting voice coding information using cyclic redundancy check bits |
Motorola voice traffic, e.g. iDEN |
| 5,815,799 |
Priority system for a wide area transmission trunked communication system |
E.F. Johnson LTR-Multinet |
| 5,822,314 |
Communications system and method of operation |
TETRA Encryption |
| 5,870,405 |
Digital transmission of acoustic signals over a noisy communication channel |
Digital Voice Systems, Inc. (DVSI) vocoder |
| 6,396,825 |
Method and apparatus for using a pseudo-random signal in a communication system |
Motorola channel quality measurement, idle detection and perhaps ranging in iDEN |
| 6,700,938 |
Method for determining quality of trellis decoded block data |
Forward error correction (RD-LAP, APCO P-25 PDTU) |
| 7,099,680 |
Data interface protocol for two-way radio communications systems |
EDACS Extended Addressing |
| 7,203,318 |
Secure transmission system for a digital trunked radio system |
EDACS Security Key (ESK) |
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Last revised December 29, 2008
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