Apparatus for processing data of program guide

• US 20010009034A1
• Filed: 01/17/2001
• Published: 07/19/2001
• 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, Jung Hye
• Granted Patent: US 6,889,386 B2
• Time in Patent Office: Days
• US Class Current: 725/39
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/47 End-user applications

Abstract

A program guide data processing apparatus which can effectively use a frame_filter by effectively combining SCIDs of an SCID_filter (corresponding to the conventional PID_filter) and frame_headers of a frame_filter (correponding to the conventional section_filter), and which can reduce the size of a buffer for storing APG data by effectively using the buffer. The apparatus has the feature that the SCID_filter (PID_filter) and the frame_filter (section_filter) are in a multi-to-multi correspondence by providing at least one SCID corresponding to a respective header of the frame_filter, and the size of the buffer for storing the APG data is ‘(the number of APG_SCIDs)*(the size of the buffer set by a user: the minimum size whereby the buffer is not in full)’.

Claims

1. A program guide data processing apparatus comprising:

an SCID_filter section including a plurality of SCIDs for receiving A/V data provided in an A/V signal format;

a frame_filter section, composed of a plurality of headers, for being mapped on the SCID-filter section in a multi-to-multi correspondence so that at least one of the headers corresponds to the plurality of SCIDs; and

a memory section for forming a buffer for each of the SCIDs, and storing program guide data in the unit of a frame.

2. The apparatus as claimed in

claim 1

, wherein the respective header in the frame_filter section comprises:

a frame_header section for representing an inherent value of the corresponding header;

an SCID_number section having at least one SCID set in the respective frame_header section; and

a mask section for selecting a mask of the corresponding header.

3. The apparatus as claimed in

claim 2

, wherein the SCID_number section represents an order set in the SCID_filter, that is a register number where the corresponding SCID is stored.

4. The apparatus as claimed in

claim 1

, wherein the memory section includes start and end address regions of the buffer where the program guide data is stored, a matched SCID_number section region, and a matched frame_header section region.

5. The apparatus as claimed in

claim 4

, wherein a size of the memory section is ‘

(the maximum number of SCIDs corresponding to one header)*(the size of the buffer set by a user;

the minimum value whereby the buffer is not in full)’

.

6. The apparatus as claimed in

claim 5

, wherein when APG data is transmitted to the buffer, the SCID that matches the frame and the register number of the frame_header are also transmitted along with a frame_start_point, and a frame_end_point.

7. The apparatus as claimed in

claim 1

, wherein the respective SCID in the SCID_filter section comprises:

an identifier (ID) for representing an inherent value of the corresponding SCID; and

a bit map that matches at least one frame_header.