Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1992-01-21
1994-07-26
Chin, Stephen
Pulse or digital communications
Spread spectrum
Direct sequence
455218, 455222, 455223, 375 99, H04B 110
Patent
active
053331532
ABSTRACT:
A digital communication device (10) comprises a signal quality detector (18) that determines the quality of the received signals and instantaneously mutes and unmutes the voice output (22) of the digital radio communication device when the quality drops below a selected level to prevent noise bursts from being heard by the user of the communication device.
REFERENCES:
patent: 3939431 (1976-02-01), Cohlman
patent: 3984776 (1976-10-01), Stedman
patent: 4344175 (1982-08-01), Leslie
patent: 4411021 (1983-10-01), Yoakum
patent: 4455664 (1984-06-01), Burke
patent: 4613974 (1986-09-01), Vokac et al.
patent: 4891824 (1990-01-01), Takamura et al.
Borras Jaime A.
Brown David L.
Marko Paul D.
Chin Stephen
Meles Pablo
Motorola Inc.
Webster Bryan
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