Data processing apparatus for transmitting/receiving compression-related indication information via display interface and related data processing method

• US 9,711,109 B2
• Filed: 05/12/2016
• Issued: 07/18/2017
• Est. Priority Date: 10/09/2012
• Status: Active Grant

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Liu, Tsu-Ming, Ju, Chi-Cheng
• Primary Examiner(s): Richer, Joni
• Application Number:
  US15/152,562
• Publication Number:
  US 20160253980A1
• Time in Patent Office: 432 Days
• Field of Search: None
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G06T 1/20 Processor architectures; Processor configuration, e.g. pipelining
• CPC Class Codes: G06T 9/00 Image coding bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG
• CPC Class Codes: G09G 2340/04 Changes in size, position or resolution of an image
• CPC Class Codes: G09G 2350/00 Solving problems of bandwidth in display systems
• CPC Class Codes: G09G 2370/08 Details of image data interface between the display device controller and the data line driver circuit
• CPC Class Codes: G09G 2370/10 Use of a protocol of communication by packets in interfaces along the display data pipeline
• CPC Class Codes: G09G 5/005 Adapting incoming signals to the display format of the display terminal
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: H04N 19/10 using adaptive coding
• CPC Class Codes: H04N 19/12 Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
• CPC Class Codes: H04N 19/136 Incoming video signal characteristics or properties
• CPC Class Codes: H04N 19/156 Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field

Abstract

A data processing apparatus includes a compressor and an output interface. The compressor generates a compressed display data by compressing a display data according to a compression algorithm. The output interface appends first indication information in a first output bitstream, appends second indication information in a second output bitstream, and outputs the first output bitstream and the second output bitstream via a display interface. The first output bitstream is derived from the compressed display data. The first indication information is set in response to the compression algorithm employed by the compressor. The first indication information is different from the second indication information. The display interface is arranged for coupling to a driver circuit.

Claims

1. A data processing apparatus comprising:

a compressor, arranged for generating a compressed display data by compressing a display data according to a compression algorithm; and

an output interface, arranged for appending first indication information in a first output bitstream, appending second indication information in a second output bitstream, and outputting the first output bitstream and the second output bitstream via a display interface, wherein the first output bitstream is derived from the compressed display data, and the first indication information is set in response to the compression algorithm employed by the compressor,

wherein the first indication information is different from the second indication information,

wherein the display interface is arranged for coupling to a driver circuit.

2. The data processing apparatus of claim 1, wherein when the compression algorithm is changed, the second indication information is set in response to the changed compression algorithm.

3. A data processing apparatus comprising:

a compressor, arranged for generating a compressed display data by compressing a first display data according to a compression algorithm; and

an output interface, arranged for appending first indication information and first identification (ID) number in a first output bitstream, appending second ID number in a second output bitstream, and outputting the first output bitstream and the second output bitstream via a display interface, wherein the first output bitstream is derived from the compressed display data, and the first indication information is set in response to the compression algorithm employed by the compressor, the first ID number is different from the second ID number,

wherein the display interface is arranged for coupling to a driver circuit.

4. The data processing apparatus of claim 3, wherein the first ID number is set in response to the first display data and the second ID number is set in response to a second display data, and the first display data and the second display data correspond to different regions of a display.

5. A data processing method comprising:

generating a compressed display data by compressing a display data according to a compression algorithm; and

appending first indication information in a first output bitstream, appending second indication information in a second output bitstream, and outputting the first output bitstream and the second output bitstream via a display interface, wherein the first output bitstream is derived from the compressed display data, and the first indication information is set in response to the compression algorithm,

wherein the first indication information is different from the second indication information,

wherein the display interface is arranged for coupling to a driver circuit.

6. The data processing method of claim 5, further comprising:

changing the compression algorithm, wherein the second indication information is set in response to the changed compression algorithm.

7. The data processing method of claim 6, wherein changing the compression algorithm comprises:

changing at least one of a compression ratio, a compression unit size, a color format, a sub-sampling format, and a bit depth.