Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7146501 | Method and apparatus for encrypting and decrypting data using encrypting key contained in electronic watermark In encoder side, an electronic watermark generating device generates an electronic watermark which contains a encryption key. An electronic watermark inserting device inserts the electronic watermark containing the encryption key into a first portion of data. An enc... | 12/05/2006 |
| 5790236 | Movie processing system This invention discloses an apparatus for apparatus for conducting a comparison of a plurality of versions of a movie which differ at least in their audio channels and for generating an editing list for an output movie on the basis of the comparison, the ... | 08/04/1998 |
| 5751398 | Motion picture digital sound system and method A digital time code is printed in an area of a motion picture film, between the normal analog optical sound track and the picture frames, that is exposed along with the sound track when a print is made. This area is partially redeveloped, and normally res... | 05/12/1998 |
| 5436682 | Photographed image reproduction apparatus A photographed image reproduction apparatus for reproducing photographed images recorded on a film includes an image reproducer for reproducing an image on the film, a music player for playing a music suitable for the image, and controller for controlling... | 07/25/1995 |
| 4054920 | Device for storing electromagnetic control signals on magnetic strip material and a sound film projector equipped therewith A circuit for storing a control signal on a selected length of strip material such as a magnetic tape having a tape head associated therewith and provided with longitudinally spaced marking signals. The circuit includes a control signal generator arranged... | 10/18/1977 |
| 3945718 | Sync contact switch for movie camera A switch adapted to cooperate with the pull-down claw of a silent movie camera for transmitting an electrical signal each time a frame of movie film is advanced past the shutter of the camera includes an insulating base adapted to be positioned within the... | 03/23/1976 |
