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. 09, 1996
Filed:
May. 17, 1994
Nestor M Rodriguez, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A soundtrack interface for a motion picture projector allows the projector to sense dye only soundtracks or silver soundtracks. The system includes: a) an infrared filter: b) means for moving the infrared filter into the optical path between the sound system light source and photo detector when a film having a dye only soundtrack is to be projected, and for moving the infrared filter out of the optical path when a film having a silver soundtrack is to be projected; c) a preamplifier; and d) means for switching the preamplifier into a circuit between the photo detector and the sound amplifier when a film having a dye only soundtrack is to be projected and out of the circuit when a film having a silver soundtrack is to be projected.