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.
Patent No.:
Date of Patent:
Jun. 19, 2001
Filed:
Mar. 20, 2000
Yoshiaki Kaneko, Yamanashi-ken, JP;
Fijitsu Quantum Devices Limited, Yamanashi, JP;
Abstract
Provided are a phase comparator (BBD),for generating a pulse of a signal UP,or DOWN,depending on lead or lag of the falling edge of a clock recovered from DATA, relative to the edge of DATA, an overrun detector circuit,activating an overrun signal OVR while the circuit,detects that lead or lag of the falling edge of the clock exceeds &pgr;/2, a state latch circuit,latching a state of either a signal UP,or DOWN,being active before the signal OVR transits active, and a selection circuit,outputting the signals UP,and DOWN,as signals UP and DOWN while the signal OVR is inactive, and outputting the signals UP,and DOWN,as the signals DOWN and UP while the signal OVR is active.