Semiconductor device and electronic equipment using same

• US 20020055215A1
• Filed: 10/19/2001
• Published: 05/09/2002
• Est. Priority Date: 10/26/2000
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Tamura, Tsuyoshi, Koizumi, Norio
• Application Number:
  US09/981,734
• Publication Number:
  US 20020055215A1
• Time in Patent Office: Days
• US Class Current: 438/200
• CPC Class Codes: G06T 9/007 Transform coding, e.g. discrete cosine transform

Abstract

A semiconductor device is provided for various types of interfaces for performing various types of data processing operations based on input or output compressed data, and electronic equipment. A multiplexing/demultiplexing section demultiplexes compressed data compressed according to the MPEG-4 standard, for example, from multiplexed data which is multiplexed compressed data corresponding to various types of media, and supplies the demultiplexed and compressed data to output interface ICs corresponding to each output device including a display section. The output interface ICs decompress the demultiplexed and compressed data according to the MPEG-4 standard, for example. An input interface IC compresses data input from an input device according to the MPEG-4 standard, for example. The compressed data is supplied to the multiplexing/demultiplexing section and multiplexed therein.

Claims

1. A semiconductor device for output interface having an interface function with an output device, the semiconductor device comprising:

an input terminal to which compressed data is input;

a decompression section which decompresses the compressed data; and

an output terminal for outputting data decompressed by the decompression section to the output device.

4. The semiconductor device according to claim 1,

wherein the compressed data input to the input terminal is compressed data demultiplexed from multiplexed data which is multiplexed one or more types of compressed data, and

wherein the decompression section decompresses the demultiplexed and compressed data.

7. The semiconductor device according to claim 1,

wherein the compressed data is compressed according to a given compression standard.

10. The semiconductor device according to claim 4,

wherein the compressed data is compressed according to a given compression standard.

13. The semiconductor device according to claim 7,

wherein the given compression standard is an MPEG standard.

16. Electronic equipment comprising:

the semiconductor device according to claim 1;

and

a demultiplexing section which demultiplexes compressed data corresponding to the semiconductor device from multiplexed data which is multiplexed one or more types of compressed data, and supplies the demultiplexed and compressed data to the semiconductor device.

2. A semiconductor device for input interface having an interface function with an input device, the semiconductor device comprising:

an input terminal to which uncompressed data is input from the input device;

a compression section which compresses the uncompressed data; and

an output terminal for outputting data compressed by the compression section.

5. The semiconductor device according to claim 2,

wherein the compressed data output from the output terminal is multiplexed together with one or more types of compressed data.

8. The semiconductor device according to claim 2,

wherein the compressed data is compressed according to a given compression standard.

11. The semiconductor device according to claim 5,

wherein the compressed data is compressed according to a given compression standard.

14. The semiconductor device according to claim 8,

wherein the given compression standard is an MPEG standard.

17. Electronic equipment comprising:

the semiconductor device according to claim 2; and

a multiplexing section which generates multiplexed data by multiplexing one or more types of compressed data including compressed data supplied from the semiconductor device.

19. The electronic equipment according to claim 16, further comprising:

a circuit which transmits and receives the multiplexed data through a given communication network.

20. The electronic equipment according to claim 17, further comprising:

a circuit which transmits and receives the multiplexed data through a given communication network.

21. The electronic equipment according to claim 18, further comprising:

a circuit which transmits and receives the multiplexed data through a given communication network.

3. A semiconductor device for driving a display section, the semiconductor device comprising:

an input terminal to which compressed data is input;

a decompression section which decompresses the compressed data; and

an output terminal for outputting data decompressed by the decompression section to the display section.

6. The semiconductor device according to claim 3,

wherein the compressed data input to the input terminal is compressed data demultiplexed from multiplexed data which is multiplexed one or more types of compressed data, and

wherein the decompression section decompresses the demultiplexed and compressed data.

9. The semiconductor device according to claim 3,

wherein the compressed data is compressed according to a given compression standard.

12. The semiconductor device according to claim 6,

wherein the compressed data is compressed according to a given compression standard.

15. The semiconductor device according to claim 9,

wherein the given compression standard is an MPEG standard.

18. Electronic equipment comprising:

the semiconductor device according to claim 3;

a demultiplexing section which demultiplexes compressed data corresponding to the semiconductor device from multiplexed data which is multiplexed one or more types of compressed data, and supplies the demultiplexed and compressed data to the semiconductor device; and

a display section which is driven by the semiconductor device.