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:
Oct. 02, 2001
Filed:
Jan. 22, 1999
Satoshi Ozawa, Tokyo, JP;
Kikutada Yoshida, Tokyo, JP;
Iwatsu Electric Co., Ltd., Tokyo, JP;
Abstract
A wave-form observation apparatus i.e. a digital oscilloscope configured to store and display wave-forms being displayed by a simple operation is disclosed. The analog input picture signal,includes wave-forms, characters and figures with their intensity information. The analog signal,is A/D converted to a picture data,. A subtracted picture data,is obtained by subtracting a predetermined value from an intensity of the stored picture data,. Two intensities of the data,and,are compared. In a ready state for the memory operation, the predetermined value is set to zero, By pushing a button,, the picture data,having strong intensity is selected in the switch S,to obtain intense picture data,. Thereafter the switch S,selects the data,which is equal to the intense picture data,in their intensities. Thus the stored picture data,is repeatedly displayed in the memory operation.