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:
Mar. 24, 2009
Filed:
Jan. 25, 2007
Yasuhiro Sekiguchi, Hyogo, JP;
Masaki Hirōmōri, Kawasaki, JP;
Yasuhiro Sekiguchi, Hyogo, JP;
Masaki Hirōmōri, Kawasaki, JP;
Fujitsu Ten Limited, Kobe, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An accurate intermittent triangular wave signal without waveform distortion is generated by a triangular wave generation circuitincluding a rectangular wave generation circuitfor generating an intermittent rectangular wave signal in which a rectangular wave interval and a direct current interval of a predetermined level are repeated; an integration circuitfor generating an intermittent triangular wave signal in which a triangular wave interval and a direct current interval are repeated based on a reference signal and the intermittent rectangular wave signal generated by the rectangular wave generation circuit; and a triangular wave correcting circuitfor correcting waveform distortion of the intermittent triangular wave signal based on a differential voltage between a starting point and an ending point of the direct current interval of the intermittent triangular wave signal output from the integration circuit