Integrated communication system

Details Integrated communication system Integrated communication system

1994-08-15

1996-11-12

Chan, Jason

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 58, H04Q 712

Patent

active

055747710

ABSTRACT:
A telephone or two-way digital paging communication system providing an alternative partial communication format in which an acknowledgement signal is transmitted from a telephone device in response to a received voice or data signal. The communication system is switchable between different types of communication formats including full two-way voice or data service, partial two-way service and one-way pager service. The communication system may be implemented in a cellular network in which a portable cellular telephone is adapted to transmit signals at different transmission rates so as to increase its operable range.

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patent: 5054052 (1991-10-01), Nonami
patent: 5117449 (1992-05-01), Metroka et al.
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patent: 5175758 (1992-12-01), Levanto et al.
patent: 5212721 (1993-05-01), DeLuca et al.
patent: 5247700 (1993-09-01), Wohl et al.

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