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:
Apr. 21, 1981
Filed:
Jun. 20, 1978
Masanao Okatani, Kawagoe, JP;
Hiroshi Onishi, Kawagoe, JP;
Yoshiaki Ishibashi, Kawagoe, JP;
Reisuke Sato, Kawagoe, JP;
Hisashi Suganuma, Kawagoe, JP;
Tomohisa Yokogawa, Kawagoe, JP;
Yoshiharu Ueki, Kawagoe, JP;
Haruo Kama, Kawagoe, JP;
Tadashi Kosuga, Kawagoe, JP;
Tadashi Ogawa, Kawagoe, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A manual tuning pulse generator for use in an electronic tuning control device of a radio receiver having a tuning circuit, which control device utilizes an up/down counter, is disclosed which comprises a first manual means for selectively producing an up count signal and a down count signal to be supplied to the up/down counter, a second manual means ganged with said first manual means for producing a variable control signal and means responsive to the variable control signal to produce a clock pulse signal having a variable frequency, the pulses of the clock pulse signal being adapted to be counted up or down by the up/down counter the content of which is utilized to shift the tuning frequency.