1
Jonathan J Stone, Terence R Hurley: Compression of video signals. Sony Broadcast & Communications, William S Frommer, Alvin Sinderbrand, June 29, 1993: US05223926 (150 worldwide citation)

A digital video signal is compressed by spatial sub-band filtering to form data sets constituting respective sub-bands of the two-dimensional spatial frequency domain. The data sets for a field or frame are stored. A first sequencer controls writing, in accordance with a desired sequence, of the sto ...


2
Stephen M Keating: Image signal processing with digital filtering to minimize aliasing caused by image manipulation. Sony Broadcast & Communications, Alvin Sinderbrand, William S Frommer, April 27, 1993: US05206919 (109 worldwide citation)

An image signal processing apparatus has an address generator that generates addresses for successive words of a digital input signal representing an input image to be manipulated. A computation circuit monitors the addresses for successive word sets which each comprise first and second words relati ...


3
Stephen M Keating, Sally J Griffiths: Motion dependent video signal processing. Sony Broadcast & Communications, Alvin Sinderbrand, William S Frommer, November 10, 1992: US05162907 (73 worldwide citation)

A motion compensated video standards converter comprises a block matcher (3) for deriving a plurality of motion vectors for each pixel of each field or frame of an output standards-converted video signal, the motion vectors representing motion between successive fields or frames of an input video si ...


4
Terence R Hurley, Jonathan J Stone, James H Wilkinson: Storage of video signals. Sony Broadcast & Communications, William S Frommer, Alvin Sinderbrand, July 27, 1993: US05231487 (35 worldwide citation)

Apparatus for storing a video signal includes a signal compression arrangement constituted by a spatial two-dimensional sub-band filtering arrangement that filters a digital video signal to form data sets constituting respective sub-bands of the two-dimensional spatial frequency domain, a quantizer ...


5
John W Richards, Milan Krsljanin, Yoshio Ozaki: Video post-production of material acquired on film. Sony Broadcast & Communications, Alvin Sinderbrand, William S Frommer, March 2, 1993: US05191427 (32 worldwide citation)

Apparatus for converting, for example, 24 Hz 1:1 format film to, for example, a 60 Hz 2:1 interlace format video signal comprises a converter (12) for transferring 24 Hz 1:1 format film material to a 60 Hz 2:1 interlace format video signal using 3 2 3 2 pull down, and a coder (13) associated with th ...


6
Nicholas I Saunders: Motion compensated video standards converter and method of deriving motion vectors. Sony Broadcast & Communications, William S Frommer, Alvin Sinderbrand, May 4, 1993: US05208667 (29 worldwide citation)

In, for example, a motion compensated video standards converter wherein blocks in a first field or frame of a video signal are each compared with a plurality of blocks in the following field or frame of the video signal for deriving motion vectors representing the motion of the content of respective ...


7
Terry R Hurley: Apparatus and methods for non-linear processing of digital signals. Sony Broadcast & Communications, William S Frommer, Alvin Sinderbrand, August 10, 1993: US05235410 (27 worldwide citation)

A digital signal is non-linearly processed without generation of alias components by modelling the required non-linear operation by the best available quadratic function. A transformation circuit for implementing the quadratic function ax.sup.2 +bx may be used. As a result, only the second harmonic ...


8
James B Pearman, John Galt, Yoshio Ozaki: Movie film to video conversion with correction of frame misalignment. Sony Broadcast & Communications, Alvin Sinderbrand, William S Frommer, March 16, 1993: US05194958 (23 worldwide citation)

Apparatus for photographic movie film to video signal conversion comprises a movie film to video conversion apparatus such as a telecine (11) in which the film (1) is aligned frame by frame to derive a video signal, and a video signal processor (16), such as a digital video effects apparatus (12), t ...


9
David J Hedley, Martin R Dorricott: Video signal processing apparatus and method. Sony Broadcast & Communications, Alvin Sinderbrand, William S Frommer, January 19, 1993: US05181111 (19 worldwide citation)

Video signal processing apparatus, for example a television standards converter (12), for motion adaptive or motion compensated processing a video signal in dependence on inter-field or inter-frame information, comprises a reader (21) for reading scene discontinuity information relating to the video ...


10
John W Richards: Up-conversion of a video signal format with expansion of active portion of video field. Sony Broadcast & Communications, Alvin Sinderbrand, William S Frommer, May 4, 1993: US05208669 (19 worldwide citation)

A digital video signal is real-time converted from a conventional definition format, such as 525 lines, 60 field/s, 2:1 interlace, with a 4:3 aspect ratio and 720.times.486 active pixels, to a high definition format, such as 1125 lines, 60 field/s, 2:1 interlace, with a 16:9 aspect ratio and 1920.ti ...