Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1992-05-20
1994-09-20
Kuntz, Curtis
Telephonic communications
Audio message storage, retrieval, or synthesis
455 341, 455 62, H04M 1100
Patent
active
053496329
ABSTRACT:
In a network for serving cordless stations located in microcells, speech channels are divided into channel groups such that no intermodulation products occur among the channels of each group. Base units are located respectively in the microcell sites to establish two-way speech channels with their cordless stations. Each base unit generates and updates priority values of the channel groups as representations of usages of all channels through a statistical process. Depending on the updated priority values different channel groups are uniquely assigned to the base units. Timeslots are defined uniquely by the respective base units using the identifiers of the assigned channel groups for broadcasting zone-registration polling signals during the defined timeslots to elicit a zone registration response from each cordless station.
REFERENCES:
patent: 4833702 (1989-05-01), Shitara et al.
patent: 5044010 (1991-08-01), Frenkiel et al.
patent: 5126733 (1992-06-01), Sagers et al.
patent: 5197093 (1993-03-01), Knuth
patent: 5263176 (1993-11-01), Kojima et al.
Bost Dwayne D.
Kuntz Curtis
NEC Corporation
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