REFERENCES

PATENTS

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)


Click here for the main page.
Comments to Webmaster.
Last revised December 29, 2008

© 2005-2008, Signal Harbor