Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1998-02-18
2000-12-12
Le, Thanh Cong
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455127, H04B 138
Patent
active
061610275
ABSTRACT:
A main apparatus has power supply terminals for supplying power to a peripheral and a recognition device for recognizing various types of peripherals by simply connecting said peripheral between said terminals and for selecting a power supply voltage as a function of the impedance of said peripheral between these terminals.
REFERENCES:
patent: 5164652 (1992-11-01), Johnson et al.
patent: 5574987 (1996-11-01), Wallace
patent: 5999829 (1999-12-01), Chun et al.
Cong Le Thanh
U.S. Philips Corporation
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