Image data processing apparatus and processing method

• US 20070120862A1
• Filed: 11/28/2006
• Published: 05/31/2007
• Est. Priority Date: 11/28/2005
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kosuga, Katsuya
• Application Number:
  US11/605,068
• Publication Number:
  US 20070120862A1
• Time in Patent Office: Days
• US Class Current: 345/555
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2330/06 Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: H04N 19/115 Selection of the code volume for a coding unit prior to coding
• CPC Class Codes: H04N 19/124 Quantisation
• CPC Class Codes: H04N 19/60 using transform coding

Abstract

An image data processing apparatus has: an image processing unit outputting image data for display; a compressing unit compressing the display image data; a decompressing unit to which the compression image data is supplied through a communication path and which decompresses the supplied compression image data; an image display unit displaying an image by the display image data from the decompressing unit; and a control unit controlling so as to reduce a clock frequency of the transmitted compression image data when a data amount of the compression image data is smaller than a set data amount by which the data can be reduced to a data amount in which a radiation interference can be permitted.

Claims

1. An image data processing apparatus comprising:

an image processing unit configured to output image data for display;

a compressing unit configured to compress said image data for display;

a decompressing unit configured to decompress the compression image data which is compressed by said compressing unit and supplied through a communication path;

an image display unit configured to display an image on the basis of the image data for display from said decompressing unit; and

a control unit configured to control so as to reduce a frequency of clocks of said compression image data which is transmitted through said communication path when a data amount of the compression image data is smaller than a set data amount in which a radiation interference can be reduced to a permissible amount of radiation interference or less.

2. An apparatus according to claim 1, further comprising an image input unit configured to supply the image data to said image processing unit.

3. An apparatus according to claim 1, wherein a compression ratio in said compressing unit is set to be higher when the data amount of said compression image data is larger than said set data amount.

4. An apparatus according to claim 1, wherein

said communication path is a flexible wiring board, and

said decompressing unit is provided integratedly with said image display unit.

5. An image data processing method comprising:

an image processing step of outputting image data for display;

a compressing step of compressing said image data for display;

a decompressing step of receiving the compression image data compressed in said compressing step through a communication path and decompressing the received compression image data;

an image display step of displaying an image on the basis of the image data for display obtained in said decompressing step; and

a control step of controlling so as to reduce a frequency of clocks of said compression image data which is transmitted through said communication path when a data amount of the compression image data is smaller than a set data amount in which a radiation interference can be reduced to a permissible amount of radiation interference or less.

6. A method according to claim 5, further comprising an image input step of supplying the image data to be processed in said image processing step.

7. A method according to claim 5, wherein a compression ratio in said compressing step is set to be higher when the data amount of said compression image data is larger than said set data amount.