The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 29, 2001

Filed:

Aug. 20, 1999
Applicant:
Inventor:

Khong-Meng Tham, San Diego, CA (US);

Assignee:

Prominent Communications Inc., San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G 3/30 ;
U.S. Cl.
CPC ...
H03G 3/30 ;
Abstract

A control circuit is used to increase the dc current of a low noise amplifier for a mobile wireless communication system in the presence of jamming signal to preserve high dynamic range and low intermodulation distortion. The control circuit compares the peak jamming signal with the average input signal. The average signal is obtained by filtering the input signal with a low-pass filter. The difference signal between the input signal with jamming signal and the average input is detected by a peak detector. The detected signal is then again compared with the average input signal to obtain a dc control signal to control the power consumption of a LNA.


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