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.
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US Patent 5182642 - Apparatus and method for the compression and transmission of multiformat data
US Patent Issued on January 26, 1993
Estimated Patent Expiration Date:
April 19, 2011Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
April 19, 2011Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractVideo data is compressed, at a first site, by a transform scaling data compressor (12), and carrier signals are modulated with audio and digital data by a delta modulation data modulator (14) and a delta-sigma modulation data modulator (16) respectively. Their output signals are combined by a multichannel data compressor (18) and transmitted to a second site, where the procedures are essentially reversed to effectively regenerate the data as originally formatted. | InventorsAssigneeApplicationNo. 687986 filed on 04/19/1991US Classes:375/240.01, Television or motion video signal375/240.18TransformExaminersPrimary: Kostak, Victor R.Attorney, Agent or FirmUS Patent References4196448, TV bandwidth reduction system using a hybrid discrete cosine DPCMIssued on: 04/01/1980 Inventor: Whitehouse , et al.4652903, Frequency generation for multiplexed analog component color television encoding and decoding Issued on: 03/24/1987 Inventor: Lucas4868653, Adaptive digital video compression system Issued on: 09/19/1989 Inventor: Golin , et al.4967272, Bandwidth reduction and multiplexing of multiple component TV signals Issued on: 10/30/1990 Inventor: Kao, et al.4982283Line-sequential pyramid processing of a plurality of raster-scanned image variables Issued on: 01/01/1991 Inventor: Acampora International ClassH04N 007/12 |
