Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent
1997-01-06
1999-08-31
Chin, Wellington
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
455520, H04Q 728
Patent
active
059466324
ABSTRACT:
A radio (101) affiliates with radio frequency sites (135, 145) based on a radio database (110) defining a group of valid site affiliations and a group of invalid site affiliations. Affiliations by the radio are controlled by a controller (120) with a controller database (160) defining a group of allowed site affiliations and a group of non-allowed site affiliations. When the controller database is altered, the radio database is updated to match the altered controller database. When the controller adds a site to its group of allowed site affiliations, it sends an updated radio database to the radio. When the controller adds a site to its group of non-allowed site affiliations, it waits until the radio requests permission to affiliate with that site and then sends an updated radio database to the radio. Upon receipt, the radio replaces its existing radio database with the updated radio database.
REFERENCES:
patent: 5313653 (1994-05-01), Sasuta
patent: 5564071 (1996-10-01), Liou et al.
patent: 5761193 (1998-06-01), Derango et al.
patent: 5761618 (1998-06-01), Lynch et al.
Peterson Larry M.
Yi Steppen A.
Chin Wellington
Egan Wayne J.
Lukasik Susan L.
Motorola
Sobutka Philip J.
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