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:
Nov. 25, 2003
Filed:
Jan. 11, 2002
Pei-Sung Chuang, Taipei Hsien, TW;
Alcor Micro, Corp., Taipei, TW;
Abstract
A device for processing output signals from a photo-diode uses a comparative conversion circuit to convert an analog output signal generated from a photo-diode to a square wave digital signal; wherein, a reference circuit obtains a reference signal by capturing the analog output signal from the photo-diode, feeds it back to a feedback logic unit for timing the high or low electric potential based on the reference signal; when the low electric potential time is too long, the entire electric potential and the wave crest value time of the output signal are adjusted to make the final output square wave digital signal of the comparative conversion circuit acquire a symmetric wave correction.