Television – Format conversion – Changing number of lines for standard conversion
Patent
1996-10-28
1998-10-27
Kostak, Victor R.
Television
Format conversion
Changing number of lines for standard conversion
348448, H04N 701
Patent
active
058284150
ABSTRACT:
Video down-conversion apparatus in which an input, higher definition video signal is converted to an output, lower definition video signal having a smaller number of active lines and/or a smaller number of active pixels per line than the input video signal, comprises: an interpolator for receiving pixels of the input video signal at an input pixel rate and interpolating output data values at the input pixel rate, the output data values comprising active output pixel values interspersed with dummy pixel values; control logic for generating an active enable signal associated with the output data values generated by the interpolator, the active enable signal having a first state when an active output pixel value is generated and a second state when a dummy pixel value is generated; a signal processing device connected to receive the output data values generated by the interpolator, the signal processing device comprising an input latch operable to latch an output data value from the interpolator only when the active enable signal is in the first state; and a buffer memory for buffering data output by the signal processing device, for output at a pixel rate associated with the output, lower definition video signal.
REFERENCES:
patent: 4536802 (1985-08-01), Kurata
patent: 4610026 (1986-09-01), Tabata et al.
patent: 4833531 (1989-05-01), Abe et al.
patent: 5327235 (1994-07-01), Richards
patent: 5410357 (1995-04-01), Rieger et al.
patent: 5739867 (1998-04-01), Eglit
Campbell Andrew
Keating Stephen Mark
Frommer William S.
Kostak Victor R.
Sony Corporation
Sony United Kingdom Limited
LandOfFree
Apparatus for controlling video down-conversion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling video down-conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling video down-conversion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1617582