Telecommunications – Transmitter – With feedback of modulated output signal
Patent
1996-05-16
1998-12-29
Faile, Andrew I.
Telecommunications
Transmitter
With feedback of modulated output signal
455115, 455127, 343702, H01Q 1112, H04B 104
Patent
active
058549722
ABSTRACT:
A transmitter (135) responds to a first control signal by outputting a transmit signal at a transmit power according to the first control signal. A power-level detector (149) responds to the transmit power by outputting a second control signal representative of a power level of the transmit power. A sensing network (159) is capable of changing from one state to another state in response to a stimulus, for example, the position of a retractable antenna (101) or attachment of a connector (113) or both. The sensing network may modify the second control signal depending upon the state of the sensing circuit. A controller (161) responds to the second control signal, whether modified or not, by determining the first control signal according to the second control signal.
REFERENCES:
patent: 3969728 (1976-07-01), Hodsdon et al.
patent: 4709403 (1987-11-01), Kikuchi
patent: 5086508 (1992-02-01), Furuno
patent: 5383223 (1995-01-01), Inokuchi
patent: 5452473 (1995-09-01), Weiland et al.
patent: 5548827 (1996-08-01), Hanawa et al.
Kiem et al., "Transmitter Having Adjustable Power Levels Responsive to the Position of a Movable Antenna", U.S.S.N 07/880,918, May 11, 1992 Attorney Docket No. CE00621R.
Thompson et al., "Wireless Communication Device Having a Reconfigurable Matching Circuit", U.S.S.N. 08/577, 460, Dec. 22, 1995 Attorney Docket No. CE01305R.
Black et al., "Wireless Comunication Device with Antenna-Activated Switch", U.S.S.N. 08/614,873, Mar. 13, 1996 Attorney Docket No. CE01905R.
Pennock Mark A.
Thompson David C.
Boccio Vincent F.
Faile Andrew I.
Kordish Donald C.
Motorola Inc.
Williams Lalita P.
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