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. 11, 2008
Filed:
May. 30, 2006
Masayuki Kawabata, Tokyo, JP;
Masayuki Kawabata, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
There is provided a waveform generator that generates a waveform. The waveform generator includes: a lamp waveform generating section that generates a lamp wave of which a signal value linearly changes for a predetermined period; a square wave generating section that generates a square wave of which pulse width is generally equivalent to the predetermined period; a waveform adding section that generally accords a timing at which a signal value in the lamp wave begins to be changed and a timing at a leading edge of the square wave, to add the lamp wave and the square wave; and a low-pass filter that removes a predetermined frequency band component from a waveform output from the waveform adding section.