Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-05-24
2010-10-19
Ahn, Sam K (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
Reexamination Certificate
active
07817757
ABSTRACT:
In one embodiment of the present invention, a method for adjusting a signal includes receiving an input data signal and communicating a first portion of the input data signal on a first path and a second portion of the input data signal on a second path. The method also includes applying a first offset compensation to the first path and a second offset compensation to the second path. The method further includes combining at least the first path and the second path to generate an output signal. The method also includes, using a clock signal, sampling the output signal to generate a plurality of data values and boundary values, each value comprising either a high value or a low value based on the sampling of the output signal. The method further includes detecting a transition in value between two successive data values and determining a sampled boundary value between the two successive data values. The method also includes, based at least on the high or low value of the boundary value and on the high or low value of at least two data values arriving immediately before the boundary value, independently adjusting the first offset compensation applied to the first path and the second offset compensation applied to the second path.
REFERENCES:
patent: 3813609 (1974-05-01), Wilkes et al.
patent: 3864632 (1975-02-01), Chang
patent: 4186384 (1980-01-01), Acker
patent: 4389636 (1983-06-01), Riddle, Jr.
patent: 4550415 (1985-10-01), Debus, Jr. et al.
patent: 4577329 (1986-03-01), Brie et al.
patent: 4669092 (1987-05-01), Sari et al.
patent: 4701923 (1987-10-01), Fukasawa et al.
patent: 4825174 (1989-04-01), Vella-Coleiro
patent: 4873702 (1989-10-01), Chiu
patent: 5010558 (1991-04-01), Yost et al.
patent: 5153875 (1992-10-01), Takatori
patent: 5353306 (1994-10-01), Yamamoto
patent: 5570396 (1996-10-01), Bergman et al.
patent: 5598432 (1997-01-01), Wei
patent: 5764103 (1998-06-01), Burra et al.
patent: 5841388 (1998-11-01), Yasuda et al.
patent: 5841810 (1998-11-01), Wong et al.
patent: 5955918 (1999-09-01), Uno
patent: 6087897 (2000-07-01), Wang
patent: 6130581 (2000-10-01), Nevin
patent: 6182264 (2001-01-01), Ott
patent: 6185251 (2001-02-01), Fertner
patent: 6243841 (2001-06-01), Mydill
patent: 6263018 (2001-07-01), Lee
patent: 6301298 (2001-10-01), Kuntz et al.
patent: 6393502 (2002-05-01), Meyer et al.
patent: 6449320 (2002-09-01), Lindoff
patent: 6563868 (2003-05-01), Zhang et al.
patent: 6704059 (2004-03-01), Kim
patent: 6735259 (2004-05-01), Roberts et al.
patent: 6756924 (2004-06-01), Lee et al.
patent: 6757334 (2004-06-01), Feher
patent: 7295605 (2004-06-01), Fang
patent: 6778602 (2004-08-01), Agazzi et al.
patent: 6788749 (2004-09-01), Voorman et al.
patent: 6834035 (2004-12-01), Marukawa et al.
patent: 6897700 (2005-05-01), Fu et al.
patent: 6904084 (2005-06-01), Huang et al.
patent: 6934345 (2005-08-01), Chu et al.
patent: 6944244 (2005-09-01), Belotserkovsky
patent: 6952444 (2005-10-01), Segal et al.
patent: 6956917 (2005-10-01), Lenosky
patent: 7023912 (2006-04-01), Orlik et al.
patent: 7034608 (2006-04-01), Gai et al.
patent: 7092676 (2006-08-01), Abdelgany et al.
patent: 7110448 (2006-09-01), Bergmans et al.
patent: 7139342 (2006-11-01), Phanse
patent: 7173965 (2007-02-01), Koyanagi et al.
patent: 7289555 (2007-10-01), Hidaka
patent: 7324589 (2008-01-01), Hidaka
patent: 7339990 (2008-03-01), Hidaka
patent: 7508872 (2009-03-01), Yamazaki
patent: 7639737 (2009-12-01), Palmer
patent: 2001/0043649 (2001-11-01), Farjad-Rad
patent: 2003/0026334 (2003-02-01), Chang et al.
patent: 2004/0021595 (2004-02-01), Erdogan et al.
patent: 2004/0114670 (2004-06-01), Cranford et al.
patent: 2004/0151239 (2004-08-01), Koyanagi et al.
patent: 2004/0151240 (2004-08-01), Hidaka
patent: 2004/0151268 (2004-08-01), Hidaka
patent: 2004/0153898 (2004-08-01), Hidaka
patent: 2004/0156432 (2004-08-01), Hidaka
patent: 2005/0008070 (2005-01-01), Wang et al.
patent: 2005/0047500 (2005-03-01), Gupta et al.
patent: 2005/0175080 (2005-08-01), Bouillett
patent: 2005/0184801 (2005-08-01), Gai et al.
patent: 2005/0185710 (2005-08-01), Gai et al.
patent: 2005/0226355 (2005-10-01), Kibune et al.
patent: 2005/0238092 (2005-10-01), Ng
patent: 2005/0254565 (2005-11-01), Sivadas et al.
patent: 2007/0110147 (2007-05-01), Koyanagi et al.
patent: 2007/0280341 (2007-12-01), Hidaka
patent: 2007/0280342 (2007-12-01), Hidaka
patent: 2007/0280383 (2007-12-01), Hidaka
patent: 2007/0280384 (2007-12-01), Hidaka
patent: 2007/0280389 (2007-12-01), Hidaka
patent: 2007/0280390 (2007-12-01), Hidaka
patent: 2007/0280391 (2007-12-01), Hidaka
patent: 2007/0297209 (2007-12-01), Hidaka
patent: 2007/0297248 (2007-12-01), Hidaka
patent: 2007/0300119 (2007-12-01), Hidaka
patent: 2008/0056344 (2008-03-01), Hidaka
patent: 0 213 309 (1987-03-01), None
patent: 1 115 216 (2001-07-01), None
patent: 0154782 (1998-11-01), None
patent: WO 92/14323 (1992-08-01), None
patent: WO 02/09374 (2002-01-01), None
European Patent Office, European Search Report Application No. 07010683.6-1246, Mar. 19, 2008, 6 pages.
European Patent Office, “Communication Pursuant to Article 94(3) EPC” for Application No. 07010680.2-1246/1862766, Dec. 15, 2008, 1 page.
European Patent Office, “Communication Pursuant to Article 94(3) EPC” for Application No. 07010683.6-1246/1862778, Dec. 15, 2008, 1 page.
European Patent Office, “Communication Pursuant to Article 94(3) EPC” for Application No. 07010684.4-1246/1862779, Dec. 18, 2008, 1 page.
Notice Requesting Submission of Opinion, (translation) from office communication from Lee International, Attorneys, Seoul, Korea, 2 pages, Sep. 29, 2006.
Wikipedia, “Phase (Waves),” http://en.wikipedia.org/wiki/Phase—(Waves), pp. 1-3, Printed Jan. 8, 2007.
Johns et al. “Integrated Circuits for Data Transmission Over Twisted-Pair Channels”, IEEE Journal of Solid-State Circuits, vol. 32, No. 3, Mar. 1997, pp. 398-406, Mar. 3, 1997.
Azadet et al., WA 18.3 “A Gigabit Transceiver Chip Set for UTP CAT-6 Cables in Digital CMOS Technology”, 2000 IEEE International Solid-State Circuits Conference, 9 pages, 2000.
Shakiba et al, “An Integrated 200-MHz 3.3-V BiCMOS Class-IV Partial-Response Analog Viterbi Decoder”, IEEE Journal of Solid-State Circuits, vol. 33, No. 1, Jan. 1998, pp. 61-75.
Hidaka, Method and System for Processing a Sampled Signal, filed Feb. 5, 2003, U.S. Appl. No. 10/359,361, pending.
Hidaka, “Method and System for Providing Error Compensation to a Signal Using Feedback Control,” filed Feb. 5, 2003, U.S. Appl. No. 10/359,332, pending.
Hidaka, “Method and System for Signal Processing Using Vector Output from Scalar Data,” filed Feb. 5, 2003, U.S. Appl. No. 10/359,379, pending.
Hidaka, “Processing a Received Signal at a Detection Circuit,” filed Feb. 7, 2003, U.S. Appl. No. 10/360,103, pending.
Koyanagi, “Equalizing a Signal for Transmission”, filed Feb. 3, 2003, U.S. Appl. No. 10/357,691, pending.
Gai et al., “Adaptive Equalizer with DC Offset Compensation,” filed Feb. 20, 2004, U.S. Appl. No. 10/783,170, pending.
Hidaka, “System and Method for Adjusting Compensation Applied to a Signal,” filed May 24, 2007, U.S. Appl. No. 11/753,021, pending.
Hidaka, “System and Method for Independently Adjusting Multiple Compensation Applied to a Signal,” filed May 24, 2007, U.S. Appl. No. 11/753,026, pending.
Hidaka, “System and Method for Adjusting Compensation Applied to a Signal,” filed May 24, 2007, U.S. Appl. No. 11/753,042, pending.
Hidaka, “System and Method for Asymmetrically Adjusting Compensation Applied to a Signal,” filed May 24, 2007, U.S. Appl. No. 11/753,050, pending.
Hidaka, “System and Method for the Non-Linear Adjustment of Compensation Applied to a Signal,” filed May 24, 2007, U.S. Appl. No. 11/753,060, pending.
Hidaka, “System and Method for the Adjustment of Compensation Applied to a Signal Using Filter Patterns,” filed May 24, 2007, U.S. Appl. No. 11/753,087, pending.
Hidak
Ahn Sam K
Baker & Botts L.L.P.
Fujitsu Limited
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