Cellular hand held portable speakerphone system having an interf

Details Cellular hand held portable speakerphone system having an interf Cellular hand held portable speakerphone system having an interf

1993-07-26

1994-07-26

Kuntz, Curtis

Telephonic communications

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

Including fiber optic link within telephone network

379 59, 455 90, H04M 1100

Patent

active

053331761

ABSTRACT:
A hand held cellular telephone system including voice storage features which enable the cellular telephone to perform functions similar to a telephone answering device, a battery monitoring system for providing the user with a real time display of the amount of time remaining for use of the cellular telephone in both the standby and conversation modes, and an interface adapter which may be used to provide speakerphone functions, power the cellular telephone, and recharge the battery.

REFERENCES:
patent: 4636741 (1987-01-01), Mitzlaff
patent: 4845738 (1989-07-01), Takano
patent: 4876740 (1989-10-01), Levine et al.
patent: 5003576 (1991-03-01), Helferich
patent: 5014294 (1991-05-01), Kromenaker et al.
patent: 5136229 (1992-08-01), Galvin
patent: 5142573 (1992-08-01), Umezawa

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