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:
Mar. 24, 1998
Filed:
Oct. 11, 1996
Yuji Yamamoto, Saitama, JP;
Toshihito Ichikawa, Saitama, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An apparatus for acquiring tuning for a tuning frequency at a high speed. In a receiver, a tuning control unit holds inputted tuning frequency information at a designated address in accordance with a storage designation signal supplied from a control unit and controls the frequency of a VCO based on the tuning frequency information held at a designated address in accordance with a read designation signal supplied from the control unit. Further, in a frequency comparison loop including a frequency comparator for acquiring a frequency difference between a target tuning frequency and the VCO frequency, a count time setting circuit sets the count time for measuring the VCO frequency, and the count time is increased whenever measurement of the VCO frequency is repeated.