Television – Format conversion – Conversion between standards with different aspect ratios
Patent
1996-10-15
1999-12-28
Lee, Michael H.
Television
Format conversion
Conversion between standards with different aspect ratios
348565, 348567, 348473, 348581, H04N 7081
Patent
active
060088540
ABSTRACT:
An input processing section reduces the content of an input video signal according to reduction ratio data, and the reduced video signal is stored in field memories. A display processing section reads a reduced video signal from the field memories to execute window display processing thereto according to video size SIZ data and video position data (X, Y). In this event, an input video clock generator, controlling a writing operation to the field memories, computes video size SIZ data from the reduction ratio data, and writes the SIZ data as a header, along with the reduced video signal, into the field memories via the input processing section. The SIZ data is read to be output to the display processing section and a display video clock generator for controlling reading.
REFERENCES:
patent: 5270831 (1993-12-01), Parulski et al.
patent: 5402187 (1995-03-01), Ezaki
patent: 5455631 (1995-10-01), Nakajima
patent: 5557336 (1996-09-01), Nakajima
patent: 5638485 (1997-06-01), Kobayashi
Desir Jean W.
Lee Michael H.
Sanyo Electric Co,. Ltd.
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