Method for identifying extender text table of electronic program guide in digital TV

• US 20010011372A1
• Filed: 01/17/2001
• Published: 08/02/2001
• Est. Priority Date: 01/17/2000
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Kyung Mee
• Granted Patent: US 6,918,133 B2
• Time in Patent Office: Days
• US Class Current: 725/39
• CPC Class Codes: G06F 16/9017 using directory or table look-up use of a directory or look-up table in file systems G06F16/13
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/434 Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/478 Supplemental services, e.g. displaying phone caller identification, shopping application
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72

Abstract

A method for identifying extender text tables of an electronic program guide in a DTV is disclosed. In the present invention, the extender text tables are identified by processing an ETT section in the same manner as other tables using a value capable of identifying the extender text table sections. Particularly, an event_id is input in a table_id_extension within ETT sections, so that the ETT sections can be identified at a receiving or a transmitting party without parsing the ETT sections.

Claims

1. A method for generating an ETT of EPG comprising inserting an event_id in a table_id_extension of each ETT section header, wherein the event_id identifies an event to which an ETT section corresponds.

2. A method of

claim 1

, wherein the table_id_extension is composed of 16 bits.

3. A method of

claim 2

, wherein 14 bits of the 16 bits represents the event_id.

4. A method of

claim 3

, wherein one of two bits of the table_id_extension not used for the event_id represents an ETM_location value to distinguish whether an ETT section is transmitted from a same channel as a corresponding EIT.

5. A method of

claim 3

, wherein one of two bits of the table_id_extention not used for the event_id represents a value to distinguish whether detailed information included in an ETT section is for channels or for events.

6. A method of

claim 1

, further comprising inserting an ETM_location value in the table_id_extension to distinguish whether an ETT section is transmitted from the same channel as EIT.

7. A method of

claim 1

, further comprising inserting a value in the table_id_extension to distinguish whether detailed information in an ETT section is for channels or for events.

8. A method of processing ETTs comprising:

setting an ETT section filter;

detecting the ETT section-outs;

section filtering and detecting at least one pertinent ETT section using an event_id value in a table_id_extension of ETT sections;

parsing the detected at least one ETT section; and

storing each parsed ETT section as a text message.

9. A method of

claim 8

, wherein the table_id_extension is composed of 16 bits.

10. A method of

claim 9

, wherein 14 bits of the 16 bits represents the event_id.

11. A method for identifying ETTs of an EPG comprising:

inserting an event_id in a table_id_extension of each ETT sections before transmitting the ETT sections to a receiver; and

section filtering, at the receiver, the received ETT sections based upon the event_id to identify an ETT section.

12. A method of

claim 11

, wherein identifying an ETT section comprises:

setting an ETT section filter;

detecting ETT section-outs;

section filtering and detecting at least one pertinent ETT section using the event_id in the table_id_extension of each ETT sections;

parsing the detected at least one ETT section; and

storing each parsed ETT section as a text message.

13. A method of

claim 11

, wherein the table_id_extension is composed of 16 bits.

14. A method of

claim 13

, wherein 14 bits of the 16 bits represents the event_id.

15. A method of

claim 14

, wherein one of two bits of the table_id_extension not used for the event_id represents an ETM_location value to distinguish whether an ETT section is transmitted from a same channel as a corresponding EIT.

16. A method of

claim 14

, wherein one of two bits of the table_id_extention not used for the event_id represents a value to distinguish whether detailed information included in an ETT section is for channels or for events.

17. A method of

claim 11

, further comprising inserting an ETM_location value in the table_id_extension to distinguish whether an ETT section is transmitted from the same channel as EIT.

18. A method of

claim 11

, further comprising inserting a value in the table_id_extension to distinguish whether detailed information in an ETT section is for channels or for events.

19. A method of

claim 11

, wherein filtering and receiving, at the receiver, ETT sections with values corresponding to a specific version.