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:
Jan. 15, 1991
Filed:
Oct. 18, 1988
Kiyoshi Kano, Yokohama, JP;
Nobuyuki Kaku, Yokohama, JP;
Tatsuya Shigemura, Katsuta, JP;
Yoshiyuki Tanaka, Katsuta, JP;
Yoshihiro Fukagawa, Yokohama, JP;
Masaki Uesugi, Katsuta, JP;
Hitachi Video Engineering Inc., Kanagawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An arc cam member has a guide groove formed on its underside along its arced length. On its outer circumference, the cam member is provided with a first cam portion. A second cam portion is formed in the wall of the guide groove of the cam member. The ends of a first arm and a second arm are placed in contact with the first and second cam portions respectively. As the cam member is rotated, the first and second arms move, following the shapes of the first and second cam portions. The motion of the first and second arms is used to operate the recording and reproducing apparatus.