Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1993-05-28
1995-01-31
Kuntz, Curtis
Telephonic communications
Audio message storage, retrieval, or synthesis
455 341, H04M 1100
Patent
active
053864573
ABSTRACT:
A cordless telephone public base unit employed in a public telephone system in close proximity with other public base units effectively avoids contention with these other base units for access to a cordless telephone handset unit generating a service request. Contention between the public base unit and the other public base units is resolved by assigning a specific one of a plurality of times during which the base unit may respond to the service request from the handset unit. The time in which the base unit responds to the service request may advantageously be determined by a randomly generated number, the received signal strength of the service request or a combination of these two parameters. Once access to the handset unit is acquired by a base unit and communications between these two units is established on a communications channel, all other handset units and base units are prevented from interfering with the communications between these two units.
REFERENCES:
patent: 4414661 (1983-11-01), Karlstrom
patent: 4771448 (1988-09-01), Kochgoli et al.
patent: 4894856 (1990-01-01), Nakanishi et al.
patent: 4926421 (1990-05-01), Kawano et al.
patent: 4953198 (1990-08-01), Daly et al.
Cotsonas George P.
Kasiske Kenneth
Lynn Dale E.
Muth Edwin A.
AT&T Corp.
Bost Dwayne D.
Kuntz Curtis
Williamson Samuel R.
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