1
Brett C Bilbrey, John M Brooks, Craig Fields, Jeffrey E Frederiksen, Thomas Jakobs: Programmable digital video processing system. Intelligent Resources Integrated Systems, Sitrick & Sitrick, July 13, 1993: US05227863 (296 worldwide citation)

Programmable apparatus for digital processing of video signals from multiple sources converted to digital format to provide real-time multiple simultaneous special video effects and suitable for direct interface to a conventional microcomputer bus such as an Apple Macintosh II NuBus. The apparatus i ...


2
Jeffrey E Frederiksen: Video transmission system. Arnold White & Durkee, May 3, 1988: US04742543 (169 worldwide citation)

A subscriber cable television system uses predominantly digital signal processing techniques and has extremely high security and an increased capacity for transmitting program and customer data to individual decoder units. For ease of data handling, two-channel audio, video, and high capacity progra ...


3
Jeffrey E Frederiksen: High resolution color video image acquisition and compression system. Stephen G Rudisill, May 10, 1988: US04743959 (135 worldwide citation)

A digital color video image digitizing and communication process comprises the steps of dividing digital data representing the overall picture information for a video image into sets of data representing shape and color information for blocks of the image with the color information including the maj ...


4
Jeffrey E Frederiksen: Video game having video disk read only memory. Bally Manufacturing Corporation, Jenner & Block, January 24, 1989: US04799677 (116 worldwide citation)

There is provided a video game system utilizing a video disk as a read only memory to store digital video image data for use in generating the video game images. The video data is stored by compressing digitized video data using color cell compression and then further compressing the data to multi-l ...


5
Jeffrey E Frederiksen: Video transmission system. Stephen G Rudisill, September 15, 1987: US04694489 (108 worldwide citation)

A subscriber cable television system uses predominantly digital signal processing techniques and has extremely high security and an increased capacity for transmitting program and customer data to individual decoder units. For ease of data handling, two-channel audio, video, and high capacity progra ...


6
Jeffrey E Frederiksen: Adaptive hierarchical subband vector quantization encoder. Northwest Starscan Partnership, December 21, 1993: US05272529 (91 worldwide citation)

A method system for data reduction of digital video signals based on vector quantization of vectors formed from coefficients of a discrete cosine transform of pixel blocks. The coefficients are grouped into subbands and both scalar and vector quantization are used. Vector quantization is implemented ...


7
Jeffrey E Frederiksen: Constant spatial data mass RAM video display system. Midway Manufacturing Corporation, Rockey and Rifkin, December 25, 1990: US04979738 (72 worldwide citation)

There is provided a video display system operable in a plurality of color resolution and pixel resolution modes while maintaining constant spatial data resolution and having a video display with a plurality of picture elements responsive to picture signals derived from video data in storage blocks w ...


8
Jeffrey E Frederiksen: Video transmission system. Stephen G Rudisill, July 21, 1987: US04682360 (70 worldwide citation)

A subscriber cable television system uses predominantly digital signal processing techniques and has extremely high security and an increased capacity for transmitting program and customer data to individual decoder units. For ease of data handling, two-channel audio, video, and high capacity progra ...


9
Jeffrey E Frederiksen: Video transmission system using time-warp scrambling. Leydig Voit & Mayer, August 12, 1986: US04605961 (68 worldwide citation)

A subscriber cable television system using predominantly digital signal processing techniques employs an improved time-warp and segment scrambling method for providing extremely high security. Means are also disclosed for suppressing the undesirable effects of discontinuities in the scrambled video ...


10
Jeffrey E Frederiksen: Position transducer system for a joystick. Bally Manufacturing Corporation, Jenner & Block, August 11, 1987: US04685678 (66 worldwide citation)

A joystick position transducer system for use in a video game. The joystick position transducer includes a pair of inductors each having a movable slug, the slugs being coupled to a control handle or knob by means of respective linkages. The control handle or knob is responsive to external stimulus ...