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. 27, 1990
Filed:
May. 18, 1989
Mitsuo Ohsawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a spectrum analyzer, an input signal is divided into a plurality of frequency bands, the signal level of each of the divided frequency bands is detected, and the signal levels of frequency bands situated between the divided frequency bands are calculated, for example, by arithmetic operating circuits, from the detected signal levels of the divided frequency bands adjacent thereto, whereupon the detected signal levels of the divided frequency bands and the calculated signal levels of the frequency bands between the divided frequency bands are all displayed, for example, as respective bar graphs, so that the frequency characteristic of the input signal can be readily observed.