Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2008-07-08
2008-07-08
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S163000, C714S700000, C324S765010
Reexamination Certificate
active
07397289
ABSTRACT:
There is provided a skew adjusting apparatus for adjusting a skew between a positive-side differential signal and a negative-side differential signal in differential signals inputted from an outside device via outside transmission lines, having a positive-side transmission line for propagating the positive-side differential signal inputted to an input end, a negative-side transmission line for propagating the negative-side differential signal inputted to an input end, a plurality of differential comparators connected with the positive-side and negative-side transmission paths so that a difference between wiring length from the input end of the positive-side transmission path and wiring length from the input end of the negative-side transmission path is different from each other and that take in the positive-side differential signal and the negative-side differential signal and a selecting section for selecting a signal taken in by the differential comparator by which a skew between the positive-side path from an output terminal of the positive-side differential signal in the outside device to the differential comparator and the negative-side path from an output terminal of the negative-side differential signal in the outside device to the differential comparator is minimized.
REFERENCES:
patent: 4247817 (1981-01-01), Heller
patent: 4820944 (1989-04-01), Herlein et al.
patent: 6670830 (2003-12-01), Otsuka et al.
patent: 6724182 (2004-04-01), Isodono et al.
patent: 57-79536 (1982-05-01), None
patent: 5-66851 (1993-03-01), None
patent: 7-230336 (1995-08-01), None
patent: 2000-304818 (2000-11-01), None
patent: 2000-304848 (2000-11-01), None
International Search Report issued in International application No. PCT/JP2005/002641 mailed on May 31, 2005 and English translation thereof, 4 pages.
Office Action dated Aug. 30, 2007 issued by the Korean Intellectual Property Office in Application No. 10-2006-7019259, with English translation, 6 pages.
Advantest Corporation
Osha & Liang LLP
Wells Kenneth B.
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