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. 17, 1978
Filed:
Apr. 05, 1976
Keiichi Sakaguchi, Yokohama, JP;
Yoshio Komine, Tokyo, JP;
Toshikazu Ichiyanagi, Tokyo, JP;
Mamoru Shimazaki, Tokyo, JP;
Kazuya Hosoe, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A motion picture camera which can use a cartridge for film having a sound track includes sound recording means and a mechanism which actuates and releases the sound recording means to an operative state and to an inoperative state, respectively, in response to an actuation and a release of a shutter release member. All such parts which are needed to engage a film are arranged in a cartridge chamber defined in the camera housing so that the operator enables to readily insert a cartridge into the chamber so long as the sound recording means are set to their inoperative position. In another phase of the present invention, in order to insure proper sound effect, a motion picture camera of the type described and having a manually switchable picture image frame frequency control device having a plurality of switched positions is provided with locking means positioned adjacent the control device upon engagement therewith to lock the control device in a particular position for image-sound synchronous recording operation, and operatively associated with one of the switches of the circuit of the sound recording means upon engagement with the control device to close the switch.