InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,477,687
Ozluturk , et al. January 13, 2009

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Balancing amplitude and phase


Abstract
A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.


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Inventors: Ozluturk; Fatih M. (Port Washington, NY), Dick; Stephen G. (Nesconset, NY), Kazakevich; Leonid (Plainview, NY)
Assignee: Interdigital Technology Corporation (Wilmington, DE)

Appl. No.: 11/126,825
Filed: May 11, 2005

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
10122992 Apr., 2002 6895045
09233791 Jan., 1999 6377620


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Current U.S. Class: 375/235 ; 375/285; 375/346; 455/296
Current International Class: H03H 7/30 (20060101); H03H 7/40 (20060101); H03K 5/159 (20060101)
Field of Search: 375/235,329,322,326,327,344,346,224,278,284,340,343,285 455/296 329/304