Apparatus for controlling display memory for storing decoded pic

Details Apparatus for controlling display memory for storing decoded pic Apparatus for controlling display memory for storing decoded pic

1997-11-05

1999-11-30

Peng, John K.

Television

Image signal processing circuitry specific to television

With details of static storage device

348714, 348715, 348716, 348719, 345185, 345186, 345188, 345196, H04N 964

Patent

active

059951672

ABSTRACT:
An apparatus for controlling a display memory for storing decoded picture data is disclosed, that comprises a data dividing portion for dividing decoded picture data as one macroblock in a vertical direction, a write address generator for generating the binary value of a write address necessary for writing the divided picture data to the display memory, a slice counter for counting the number of slice lines of picture data that has been written to the display memory, a rotate-shifter for rotating and shifting the binary value of the generated write address to the left by a first bit number corresponding to the number of slice lines counted, a means for writing the divided picture data to the display memory corresponding to the write address that has been rotated and shifted, a read address generator for generating the binary value of a read address necessary to read picture data from the display memory, a rotate-shifter for rotating and shifting the binary value of the generated read address to the left by a second bit number corresponding to output data of the slice counter, and a means for reading picture data from the display memory corresponding to the read address that has been rotated and shifted.

REFERENCES:
patent: 5386233 (1995-01-01), Keith
patent: 5446560 (1995-08-01), Schwartz
patent: 5623311 (1997-04-01), Phillips et al.
patent: 5729303 (1998-03-01), Oku et al.
patent: 5878173 (1999-03-01), Hashimoto et al.
patent: 5910824 (1999-06-01), Yu

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