U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 352/32 - Picture strip and groove-type sound disc or cylinder


Subclass of Class 352 - Optics: motion pictures
Definition: Subject matter in which the picture carrier is a flexible
No. of patents: 3
Last issue date: 01/31/1995


NumberTitleIssue Date
5386255Motion picture digital sound system and method with primary sound storage edit capability
A digital sound system for motion picture films employs a digital time code on the film to trigger the transfer of sound data from a digital audio store to a FIFO memory. The digital audio data is read out from the FIFO memory and played back in the theat...
01/31/1995
4429962Sound motion picture apparatus with removable cartridge
Described is a motion-picture apparatus with a housing, a removable cartridge and an arrangement for reproducing a sound track in correlation with the action shown on a length of film contained in the cartridge....
02/07/1984
4087634Dual sound track sensor and calibration strip therefor
A sensing device for use with a motion picture projector for projecting a motion picture having a sound track with two or more sound channels, said projector having a light source for illuminating said sound track, said sensing device having a base or fix...
05/02/1978
 
Sign InRegister
Username  
Password   
forgot password?