Title:
【発明の名称】画像変換メモリ装置
Document Type and Number:
Japanese Patent JP2558236
Kind Code:
B2
Abstract:
A picture transformation memory has three field stores which rotatively store a next field of video data, output a prior field of video data and output a current field of video data to provide a full frame output for each field input period. Each field store has four planes which contain identical fields of data and are read from sequentially pixel by pixel. Each plane has four banks with the field data being read into the banks sequentially pixel by pixel such that when one pixel is addressed, a local address generator addresses the neighboring pixels as well to produce a multi-pixel output to an interpolator. For half bandwidth data the first and third planes contain identical data and the second and fourth planes contain identical data in the same address locations as the corresponding data in planes one and three. The planes are independently addressable as are the pixels in each plane so that the pixels can be read from the picture transformation memory in a random sequence to accomodate any desired picture transformation.
Inventors:
RONII DEI BAANETSUTO
RICHAADO EI JAKUSON
RICHAADO EI JAKUSON
Application Number:
JP26515987A
Publication Date:
November 27, 1996
Filing Date:
October 20, 1987
Export Citation:
Assignee:
GRASS VALLEY GROUP
International Classes:
G06T3/60; G11C7/00; H04N5/262; H04N5/907; (IPC1-7): H04N5/262; H04N5/907
Domestic Patent References:
| JPS60160780A |
Foreign References:
| US4463372A |
Attorney, Agent or Firm:
Toshiaki Morisaki