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:
Jan. 19, 1993
Filed:
Sep. 24, 1991
Applicant:
Inventor:
Hajime Harada, Tokyo, JP;
Assignee:
Nihon Kohden Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; G11C / ;
U.S. Cl.
CPC ...
307353 ; 307351 ; 328117 ; 328151 ;
Abstract
A method and circuit for sampling input waveform signals at a predetermined periodic rate by detecting a peak and a bottom value during each period. The method further includes holding a peak value and a bottom value of an input waveform signal whenever they are generated as hold values and resetting the hold value to the current input waveform signal level so as to obtain a high-fidelity sampling output. The peak level or the bottom level is generated as a sampling value according to which is operating, the peak hold or bottom hold, at the sampling time. If both are currently not operating, then outputting the hold which was the last in operation.