Title:
VIDEO DATA RECORDER AND VIDEO DATA REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JP3297775
Kind Code:
B2
Abstract:
PURPOSE: To simplify circuit constitution and to reduce a cost.
CONSTITUTION: In a recording system 1 for blocking video data in a blocking circuit 6, performing a compression processing in an orthogonal transformation circuit 7 and a quantization circuit 13 and performing recording, at the time of digitally recording the video data, so as to complete a framing processing performed in a simple framing circuit 8 within the same block, the high band part of the video data is removed in a low-pass filter 5 and the recording is performed. Also, in a reproducing system 21 for reproducing the video data recorded in such a manner, a processing for reducing the degradation of a picture quality generated by removing the high band part at the time of the recording is performed to the reproduced video data in the low-pass filter 28 and output is performed. In addition to that the framing processing performed in the simple framing circuit 8 is simplified, memories and circuits relating to shuffling and de-shuffling are completely omitted.
Inventors:
Yoichiro Tauchi
Osamu Matsumura
Hiroyuki Kuriiwa
Osamu Matsumura
Hiroyuki Kuriiwa
Application Number:
JP6938994A
Publication Date:
July 02, 2002
Filing Date:
April 07, 1994
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N5/92; H03M7/30; H04N19/102; H04N19/136; H04N19/176; H04N19/186; H04N19/192; H04N19/194; H04N19/196; H04N19/42; H04N19/423; H04N19/426; H04N19/60; H04N19/625; H04N19/80; (IPC1-7): H04N5/92; H04N7/30
Domestic Patent References:
| JP461523A | ||||
| JP686259A | ||||
| JP7212711A |
Attorney, Agent or Firm:
Akira Koike (2 outside)
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