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:
Aug. 21, 1979
Filed:
Jan. 19, 1978
Akira Misawa, Tokyo, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A tuning indicating device in a radio tuner displays S-meter and T-meter tuning information in a single, two-dimensional display. The display unit forms a two-dimensional pattern in response to drive signals corresponding to the S-meter and T-meter tuning information and preferably comprises two groups of electrodes disposed to sandwich a plate-shaped member made of a material whose optical characteristic is changed in response to an electrical field strength applied thereto. One of the groups of electrodes is a plurality of film electrodes which are aligned in one and the same direction, while the other is a plurality of film electrodes which are arranged in such a manner that the configurations thereof are different from one another gradually in a predetermined direction and which are aligned in a direction different from the direction of the one group of film electrodes.