Daniel A Beaulier: Electronic still store with high speed sorting and method of operation. Ampex Corporation, Bradley A Perkins, Ronald C Fish, George B Almeida, April 11, 1989: US04821121 (62 worldwide citation)

An electronic still store system stores and selectively outputs video image data defining a plurality of signal frame still images. The simultaneous display of up to 16 or more quarter sized images for scanning or sorting by an operator is facilitated by generating a quarter sized copy of each newly ...

Lawrence J Evans, Junaid Sheikh, Rodney D Stock, Kenneth E J Turkowski: YIQ Computer graphics system. Ampex Corporation, Gregory Roth, Bradley A Perkins, Joel D Talcott, January 14, 1986: US04564915 (59 worldwide citation)

A YIQ computer graphics system includes a data processing system having a data tablet for receiving inputs from an artist and a video processing system connected to the data processing system. The video processing system includes a two component expandable frame store with the first component storin ...

Daniel A Beaulier, Theodore A Marsh: System and method for transforming and filtering a video image. Ampex Corporation, Gregory L Roth, Rodney L Marett, Bradley A Perkins, July 22, 1986: US04602285 (51 worldwide citation)

A video transformation and filtering system generates for each source image data point a plurality of target image addresses indicating a displacement between a point at which the source image data point maps into the target image and each data point of the target image which is affected by the sour ...

Daniel A Beaulier: Font recall system and method of operation. Ampex Corporation, Gregory L Roth, Rodney L Marett, Bradley A Perkins, February 4, 1986: US04568981 (25 worldwide citation)

A font recall system stores a font of alpha-numeric characters in a video display format for selective insertion as a caption into a video image. Characters are stored on a video disk in digital pixel form with full dynamic resolution. Low pass filtering is employed to preserve high image quality an ...

John Hutson: Programmable divider up/down counter with anti-aliasing feature and asynchronous read/write. Ampex Corporation, Ronald C Fish, Bradley A Perkins, Richard P Lange, December 15, 1987: US04713832 (19 worldwide citation)

There is disclosed herein an up/down counter with a programmable terminal count. The up/down counter has a two level input structure such that new terminal counts may be written into the up/down counter asynchronously without disturbing operations of the up/down counter. Although the invention is de ...

Kenneth Louth: Microprocessor controlled reproducing apparatus having asynchronous reproducing capability. Ampex Corporation, Bradley A Perkins, Joel D Talcott, January 6, 1987: US04635138 (16 worldwide citation)

A microprocessor controlled multiple servo system for use with a recording and reproducing apparatus is disclosed. The system controls all servo systems for a magnetic tape recording and reproducing apparatus, including a capstan servo, a reel servo, a scanning drum servo and an automatic scan track ...

Daniel R Blessington: Electrical interconnection system. Xerox Corporation, Bradley A Perkins, February 26, 1985: US04502059 (15 worldwide citation)

A device in which at least two separate electrical connections are made between a first member and a second member. The first member has at least two surfaces with at least one conductive element on each surface. These conductive elements are insulated from one another. The second member is mounted ...

Andrew H Naegeli, Juan Grau, Richard A Nyquist: Vector analyzer with display markers and linear transform capability. Hewlett Packard Company, James M Williams, Bradley A Perkins, Edward Y Wong, April 4, 1989: US04818931 (15 worldwide citation)

A vector analyzer incorporates a set of five types of markers for the display, which facilitate the visual analysis of the magnitude, phase and time relationships of the I and Q components of the modulation states displayed. The five markers are: an I marker, a Q marker, a magnitude marker, a phase ...

David A Haycock, Jay L Flora: Apparatus and method for producing a variety of video wipe borders. Ampex Corporation, Bradley A Perkins, George B Almeida, Richard P Lange, August 16, 1988: US04764809 (14 worldwide citation)

An apparatus and method for generating waveform signals for the production of a variety of borders for video wipes by varied processing of the output of a ramp generator.

Roger W Wood, Charles L Matson: Encoder verifier. Ampex Corporation, Robert K Schumacher, Charles M Carman Jr, Bradley A Perkins, July 2, 1985: US04527269 (12 worldwide citation)

An encoder verifier checks the functioning of a Reed-Solomon encoder in which data and parity bytes are intended to be digitally encoded in data blocks to form for each data block a respective codeword in multi-bit bytes in the form of a Galois field polynomial that is divisible in the Galois field ...