Radiotelephone having a user interface module

Details Radiotelephone having a user interface module Radiotelephone having a user interface module

1997-01-29

1999-12-07

Bost, Dwayne D.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

379429, 455575, H04B 138

Patent

active

059998210

ABSTRACT:
A radiotelephone (100) comprises a user interface module (102) including a membrane sheet layer (302), user interface circuitry (304) and a flexible circuit sheet layer (306), and a radio circuitry module (104) including radio circuitry (308) and a radio housing (310). The user interface circuitry (304) includes an earpiece electroacoustic transducer (322), microphone electroacoustic transducer (324), a keypad (326) and an electronic display (328) being disposed between the membrane sheet layer (302) and the flexible circuit sheet layer (306). The radio circuitry (308) is electrically coupled to the user interface circuitry (304) via electrical conductors (330-344) on the flexible circuit sheet layer (306) permitting many marketing options for the user interface module (102) and efficient manufacturing of the radiotelephone (100). The radio housing (310) encloses the radio circuitry (308) and is mechanically coupled to the user interface module (102). The user interface module (102) integrates the earpiece electroacoustic transducer (322) and the microphone electroacoustic transducer (324) as electroacoustic transducer sheet layers (402 and 414) in the user interface module (102), and includes hinge mechanisms (702, 902, 904) to produce a credit card sized radiotelephone (FIGS. 7-10).

REFERENCES:
patent: 4916262 (1990-04-01), Jungels-Butler et al.
patent: 5235636 (1993-08-01), Takagi et al.
patent: 5357570 (1994-10-01), Tomura et al.
patent: 5689823 (1997-11-01), Phillips

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