Method of obtaining additional network information in digital satellite broadcasting and a satellite broadcast receiver using the same

• US 20060041925A1
• Filed: 08/22/2005
• Published: 02/23/2006
• Est. Priority Date: 08/23/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Suh, In-kyo
• Application Number:
  US11/207,778
• Publication Number:
  US 20060041925A1
• Time in Patent Office: Days
• US Class Current: 725/132
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 40/90 specially adapted for satellite broadcast receiving
• CPC Class Codes: H04N 7/20 Adaptations for transmission via a GHz frequency band, e.g. via satellite

Abstract

A method of obtaining additional network information in digital satellite broadcasting. The method includes extracting a boot object including information of each network from a digital satellite broadcast signal, determining whether the information of each network included in the boot object is extended network information, checking validity of the extended network information, and storing the extended network information when the extended network information is determined as being valid.

Claims

1. A method of obtaining additional network information in digital satellite broadcasting, comprising:

extracting a boot object including information of each network from a digital satellite broadcast signal;

determining whether the information of each network included in the boot object is extended network information;

checking validity of the extended network information; and

storing the extended network information when the extended network information is determined to be valid.

2. The method of claim 1, wherein the checking validity comprises determining whether the extended network information has a valid frequency range and a valid polarization value.

3. The method of claim 1, wherein the storing comprises storing the extended network information in a dynamic random access memory (DRAM).

4. A method of obtaining additional network information in digital satellite broadcasting, the method comprising:

extracting a boot object including information of each network from a digital satellite broadcast signal;

determining whether the information of each network included in the boot object is extended network information;

checking validity of the extended network information;

determining whether the extended network information has already been stored when the extended network information is determined to be valid; and

storing the extended network information determined to be valid when it is determined that the extended network information has not been stored.

5. The method of claim 4, wherein the checking of the validity comprises determining whether the extended network information has a valid frequency range and a valid polarization value.

6. The method of claim 4, wherein the storing comprises storing the extended network information in a nonvolatile memory.

7. A satellite broadcast receiver, comprising:

an extracting section extracting a boot object including information of each network from a digital satellite broadcast signal;

a central processing unit determining whether the information of each network included in the boot object is extended network information and checking validity of the extended network information; and

a storage unit storing the extended network information when the extended network information is determined to be valid.

8. The receiver of claim 7, wherein the extraction section comprises a demodulator demodulating the satellite broadcast signal to obtain a transport stream and a demultiplexer separating a video stream, an audio stream, and data from the transport stream.

9. The receiver of claim 7, wherein the boot object includes a fast load stream frequency index, a service channel ID (SCID), and a network'"'"'s carousel information stream SCID.

10. The receiver of claim 7, wherein the extended network information indicates a network other than existing fixed satellites.

11. A computer-readable storage medium encoded with processing instructions for causing a processor to perform a method of obtaining additional network information in digital satellite broadcasting, the method comprising:

extracting a boot object including information of each network from a digital satellite broadcast signal;

determining whether the information of each network included in the boot object is extended network information;

checking validity of the extended network information; and

storing the extended network information when the extended network information is determined to be valid.

12. A computer-readable storage medium encoded with processing instructions for causing a processor to perform a method of obtaining additional network information in digital satellite broadcasting, the method comprising:

extracting a boot object including information of each network from a digital satellite broadcast signal;

determining whether the information of each network included in the boot object is extended network information;

checking validity of the extended network information;

determining whether the extended network information has already been stored when the extended network information is determined to be valid; and

storing the extended network information determined to be valid when it is determined that the extended network information has not been stored.