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. 07, 1980
Filed:
Sep. 28, 1978
Hiromi Juso, Gose, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A nonrecorded section detection sensor is mounted on a sensor arm which is rotatable around a shaft, to which a drive mechanism is connected to scan the nonrecorded section detection sensor above a disc. A slit plate is fixed to the shaft to detect the rotation of the shaft, whereby the address of a nonrecorded section provided between two adjacent tracks recorded on the disc is detected. Another slit plate is fixed to a tonearm drive shaft to detect a current address of a pickup cartridge mounted on a tonearm. A control circuit functions to locate the pickup cartridge at a beginning position of a selected track through the use of information related to the addresses of the nonrecorded section and the pickup cartridge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile