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:
May. 14, 1985
Filed:
Aug. 12, 1982
Atsushi Ogawa, Tokyo, JP;
Trio Kabushiki Kaisha, , JP;
Abstract
In converting a staircase waveform signal into a smoothed analog signal, this circuit can perform the high-quality conversion without any sophisticated lowpass filter. An input staircase signal is delayed for one stepping interval to produce a differential signal which represents a stepping height at each step, by taking the difference between the input staircase signal and the one stepping interval delayed version thereof. The differential signal is integrated at every stepping interval. The integrated voltage forms a sawtooth wave signal which is in turn additively combined with the one stepping interval delayed version of the input staircase signal. The resulted combined signal is a smoothed signal of the input staircase signal.