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. 21, 2002
Filed:
Sep. 20, 2000
Applicant:
Inventors:
Masao Okubo, Tokyo, JP;
Dai Sasaki, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/017 ; H03K 5/04 ; H03K 7/08 ;
U.S. Cl.
CPC ...
H03K 3/017 ; H03K 5/04 ; H03K 7/08 ;
Abstract
When continuously outputted pulses from a first pulse to an (N+1)th (where N is an integer) are received, a pulse specifying circuit specifies a number N of a pulse whose properties are to be measured. Further, a gate generating circuit generates a gate signal which is at high level during a period from the end of the (N−1)th pulse to the start of the Nth pulse and which is at low level during a period from the end of the Nth pulse to the start of the (N+1)th pulse. A semiconductor evaluating apparatus measures the width of the Nth pulse based on the generated gate signal.