1
John M Keith, Stuart J Golin, Allen H Simon, Brian Astle: Digital video decompression system. Technology 64, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, November 15, 1988: US04785349 (215 worldwide citation)

A full motion color digital video signal is compressed, formatted for transmission, recorded on compact disc media and decoded at conventional video frame rates. During compression, regions of a frame are individually analyzed to select optimum fill coding methods specific to each region. Region dec ...


2
Robert F Casey: Chrominance signal frequency converter as for a pix-in-pix television receiver. RCA Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, December 8, 1987: US04712130 (60 worldwide citation)

A pix-in-pix television signal processing system develops a composite video pix-in-pix signal representing a reduced-size auxiliary image insert in a full-sized main image. The auxiliary video signal is separated into luminance and chrominance components by filtering circuitry. The luminance signal ...


3
Shinichi Shiratsuchi: Television picture zoom system. RCA Licensing Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, September 27, 1988: US04774581 (49 worldwide citation)

A digital video zoom system includes circuitry for writing image samples into a memory at a standard rate and for reading samples from the memory at a reduced rate. Samples are read from the memory under control of a digital accumulator which repeatedly adds a value N to a stored value, modulo M, to ...


4
Donald H Willis: Dual port video memory system having semi-synchronous data input and data output. RCA Licensing Corporation, Hitachi, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, December 6, 1988: US04789960 (43 worldwide citation)

A dual port video memory system includes a serial-to-parallel converter coupled to the input data port and a parallel-to-serial converter coupled to the output data port. Four-bit pixel values are clocked into the serial-to-parallel converter synchronous with an input clock signal and are provided b ...


5
Kazuo Fukazawa, Toshio Kaneuchi: Line-locked clock signal generation system. RCA Licensing Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, December 13, 1988: US04791488 (43 worldwide citation)

A television receiver includes a phase-locked loop (PLL) which generates a clock signal having a frequency of N times the line frequency and being phase-locked to the horizontal line synchronizing signal. The clock signal produced by this PLL has a frequency which tends to jitter between N+1 and N-1 ...


6
Eric D Romesburg: Digital TV having on-screen display feature. RCA Licensing Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, August 30, 1988: US04768083 (34 worldwide citation)

A television pix-in-pix system includes a pixel memory for storing one field of pixel intensity values of a television signal. A 1-bit overlay indication signal representative of pixel address locations defining a desired indicia on the TV screen is stored in an associated bit map memory. A digital ...


7
Shinichi Shiratsuchi: Sampled data memory system as for a television picture magnification system. RCA Licensing Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, December 20, 1988: US04792856 (24 worldwide citation)

A television picture magnification system which provides real-time magnified video images includes a memory system which stores L horizontal line intervals of samples representing one field of the unmagnified video image during a first time interval and which provide K of those L lines of samples du ...


8
Alvin R Balaban, Walter H Demmer, Leopold A Harwood, Chandrakant B Patel: Chrominance signal phase locked loop system for use in a digital television receiver having a line-locked clock signal. RCA Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, October 13, 1987: US04700217 (24 worldwide citation)

A digital television receiver which uses a line-locked clock signal employs chrominance signal demodulation circuitry which produces a digital oscillatory signal that is locked in phase to the color reference burst signal component of the incoming video signals. An analog voltage controlled oscillat ...


9
Lauren A Christopher: Circuitry for complementing binary numbers. RCA Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, November 24, 1987: US04709226 (18 worldwide citation)

Circuitry for forming the twos complement or ones complement of M-bit binary numbers is described. The circuitry includes M stages each of which contains an exclusive NOR gate. A first input terminal of the exclusive NOR gate is coupled to receive one bit of the input value and a second input termin ...


10
Donald H Willis: Circuitry for processing a field of video information to develop two compressed fields. RCA Licensing Corporation, Paul J Rasmussen, Eric P Herrmann, Kenneth N Nigon, June 7, 1988: US04750039 (18 worldwide citation)

A picture-within-a-picture television receiver includes circuitry for displaying a reduced-size frozen image developed from an auxiliary signal as an inset in the main image. To develop signals representing two fields of the compressed auxiliary image, the system includes circuitry which processes f ...