Telecommunications – Transmitter and receiver at same station – With a common signal processing stage
Patent
1989-08-07
1991-12-31
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
With a common signal processing stage
455 90, 455154, 455186, 455349, H04B 140
Patent
active
050778323
ABSTRACT:
A digitally controller radio transceiver includes a housing including a front cover provided with a display port; a main controller board mounted within the housing; an optional display board attached to an interior surface of the front cover adjacent said display port, said display board electrically connected to said main controller board by a pressure fit connection; a removable display escutcheon plate mounted on an exterior surface of the cover, overlying the display port; and fastening means extending through the cover and connecting the display board to the display escutcheon plate. Removal or omission of the display board is automatically sensed by the radio transceiver's internal microprocessor which operates accordingly. In one embodiment the transceiver program store may be loaded via an external connector to customize the microprocessor instruction code for the presence or absence of a display.
REFERENCES:
patent: 4254504 (1981-03-01), Lewis et al.
patent: 4486624 (1984-12-01), Puhl et al.
patent: 4525865 (1985-06-01), Mears
patent: 4718110 (1988-01-01), Schaefer
patent: 4843588 (1989-06-01), Flynn
patent: 4856088 (1989-08-01), Oliwa et al.
patent: 4887311 (1989-12-01), Garner et al.
NEC Electronics U.S.A. Inc., .mu.PD7225 Intelligent Alphanumeric LDC Controller/Driver Technical Manual.
Butler, Jr. Clyde R.
Cooper Gerald M.
Dissosway Marc A.
Szczutkowski Craig F.
Eisenzopf Reinhard J.
Ericsson - GE Mobile Communications Inc.
Pham Chi H.
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