Phase-locked loop circuit and data reproduction apparatus

Details Phase-locked loop circuit and data reproduction apparatus Phase-locked loop circuit and data reproduction apparatus

2009-01-30

2010-06-29

Cox, Cassandra (Department: 2816)

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

C327S024000, C327S157000

Reexamination Certificate

active

07746180

ABSTRACT:
This invention relates to a phase-locked loop circuit and a data reproduction apparatus, which can reduce a processing time that is required for initial adjustment in the data reproduction apparatus. In a digital data reproduction apparatus having two control functions, i.e., phase and duty adjustments for binarized data, the phase comparison with one edge is performed only at the phase adjustment by means of a phase-locked loop circuit33having an edge switching means4which controls the phase comparator1. The phase comparator1inputs the binarized and a bit synchronous clock, and switches the output between a comparison result with one edge, i.e., a rising edge or a falling edge of binarized data, and a comparison result with both edges.

REFERENCES:
patent: 4851909 (1989-07-01), Noske et al.
patent: 4852126 (1989-07-01), Tanaka et al.
patent: 5157277 (1992-10-01), Tran et al.
patent: 5432481 (1995-07-01), Saito et al.
patent: 5729179 (1998-03-01), Sumi et al.
patent: 5940070 (1999-08-01), Koo et al.
patent: 6060953 (2000-05-01), Tsai
patent: 6072370 (2000-06-01), Nakamura et al.
patent: 6147530 (2000-11-01), Nogawa et al.
patent: 6166606 (2000-12-01), Tsyrganovich
patent: 6211741 (2001-04-01), Dalmia
patent: 6275072 (2001-08-01), Dally et al.
patent: 6285726 (2001-09-01), Gaudet
patent: 6320921 (2001-11-01), Gu
patent: 6498537 (2002-12-01), Watanabe et al.
patent: 6501311 (2002-12-01), Lutkemeyer
patent: 6563888 (2003-05-01), Toriyama et al.
patent: 6631103 (2003-10-01), Yamanoi et al.
patent: 6667663 (2003-12-01), Ozawa et al.
patent: 6828865 (2004-12-01), Yamane et al.
patent: 6952462 (2005-10-01), Harrison
patent: 6959061 (2005-10-01), Kuwata
patent: 7034622 (2006-04-01), Yamane et al.
patent: 7362186 (2008-04-01), Yamane et al.
patent: 7501902 (2009-03-01), Yamane et al.
patent: 2003/0032392 (2003-02-01), Suzuki
patent: 2003/0072222 (2003-04-01), Sekine et al.
patent: 2006/0176089 (2006-08-01), Yamane et al.
patent: 59033950 (1984-02-01), None
United States District Court For The Eastern District of Texas, Marshall Division, Civil Action No. 2-05CV-484, Document No. 1-1 filed Oct. 17, 2005, Jury Trial Demanded, Plaintiff Mediatek, Inc.'s Complaint For Patent Infringement, 6 pages.
United States District Court For The Eastern District of Teexas, Marshall Division, Civil Action No. 2-05CV-484TJW, Document 13-1, filed Feb. 1, 2006, Jury Demanded, Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation of North America's Answer and Counter Claims, 12 pages.
United States District Court For The Eastern District of Texas, Marshall Division, Civil Action No. 2-05-CV-484TJW, Document No. 18 filed Feb. 21, 2006, Jury Trial Demanded, Plaintiff and Counterclaim Defendant Mediatek, Inc.'s Reply to Counterclaims for Patent Infringement of U. S. Patent No. 6,828,865 and U. S. Patent No. 5,347,232 and for Declaratory Judgment of Invalidity and Non-Infringement, 11 pages.
United States District Court For The Eastern District of Texas, Marshall Division, Civil Action No. 2-05-CV-484TJW, Document 19 filed Feb. 21, 2006, Jury Trial Demanded, Counterclaim Defendant MSI Computer Corp.'s Reply to Counterclaims for Patent Infringement of U. S. Patent No. 6,828,865 and U. S. Patent No. 5,347,232, 8 pages.
United States District Court For The Eastern District of Texas, Marshall Division, Civil Action No. 2-05-CV-484TJW, Document 20, filed Feb. 21, 2006, Jury Trial Demanded, Counterclaim Defendant Oppo Digital, Inc.'s Reply to Counterclaims for Patent Infringement of U. S. Patent No. 6,828,865 and U. S. Patent No. 5,347,232, 8 pages.

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