Device for detecting the power of a signal and integrated...

Details Device for detecting the power of a signal and integrated... Device for detecting the power of a signal and integrated...

2007-02-27

2007-02-27

Lee, Benny (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

Reexamination Certificate

active

11043685

ABSTRACT:
The present invention describes a device for detecting the power of a first signal at a given frequency. The device comprises a first circuit means for detecting the envelope of the first signal and a second circuit means coupled to the first circuit means and suitable for generating a second signal proportional to the average of the envelope detected. The second signal is proportional to the square root of the average power of the first signal.

REFERENCES:
patent: 3441931 (1969-04-01), Shrader
patent: 4490681 (1984-12-01), Turner
patent: 4577159 (1986-03-01), Pace
patent: 5408197 (1995-04-01), Miyake
patent: 5901173 (1999-05-01), Stephens et al.
patent: 5982236 (1999-11-01), Ishikawa et al.
patent: 2003/0042885 (2003-03-01), Zhou et al.
patent: WO01/80421 (2001-10-01), None
European Search Report dated Jul. 19, 2004 for European Patent Appl. No. EP04425041.

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