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:
Apr. 08, 2008
Filed:
Dec. 14, 2005
Applicants:
Tamotsu Nagashima, Tokyo, JP;
Koji Tomioka, Tokyo, JP;
Inventors:
Tamotsu Nagashima, Tokyo, JP;
Koji Tomioka, Tokyo, JP;
Assignee:
Asahi Kasei Microsystems Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K 4/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A waveform generating circuit is provided which generates a modified triangular wave signal suitable for being input to a frequency modulation circuit such as a voltage-controlled oscillator (VCO). The waveform generating circuit includes a triangular generator, an offset generator for generating first and second offset component signals, a combiner for adding the triangular wave signal generated by the triangular wave generator and the offset component signals, and an output for delivering an output signal resulting from the addition by the combiner.