Method and apparatus for receiving broadcasting service information in a digital broadcasting system

• US 8,351,410 B2
• Filed: 02/14/2007
• Issued: 01/08/2013
• Est. Priority Date: 02/14/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Jae-Hong, Hwang, Seok-Min
• Primary Examiner(s): Afshar, Kamran
• Assistant Examiner(s): Iqbal, Khawar
• Application Number:
  US11/705,996
• Publication Number:
  US 20070220584A1
• Time in Patent Office: 2,155 Days
• Field of Search: 370/340, 370/331, 725/136, 725/118, 725/135, 725/105, 375/469, 375/240.25, 348/469
• US Class Current: 370/340
• CPC Class Codes: H04H 60/27 Arrangements for recording or accumulating broadcast information or broadcast-related information
• CPC Class Codes: H04H 60/39 for identifying broadcast space-time use of Electronic Programme Guides H04H60/72
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2389 Multiplex stream processing, e.g. multiplex stream encrypting
• 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 21/4385 Multiplex stream processing, e.g. multiplex stream decrypting
• CPC Class Codes: H04N 21/4435 Memory management allocation of memory to service a request G06F9/5016; addressing or allocating within memory systems or architectures G06F12/02
• CPC Class Codes: H04N 21/64315 DVB-H
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Provided are an apparatus and a method for receiving PSI/SI in a DVB-H receiver, in which packets carrying PSI/SI are detected from TS packets received over a wireless network and counted, and the PSI/SI packets are read if the packet count number reaches a predetermined packet number.

Claims

1. A method for receiving broadcasting service information in a digital broadcasting system, comprising:

detecting packets carrying broadcasting service information from Transport Stream (TS) packets received over a wireless network, the broadcasting service information being Program Specific Information/Service Information (PSI/SI);

counting the number of the detected PSI/SI packets;

storing the detected PSI/SI packets;

generating an interrupt signal for reading the PSI/SI packets, if the packet count number reaches a predetermined packet number;

reading the PSI/SI packets after generating the interrupt signal;

activating a timer when a PSI/SI packet is detected;

comparing the packet count number with 0, if the timer has counted a predetermined timer value; and

reading the PSI/SI packets if the packet count number is greater than 0.

2. The method of claim 1, wherein the interrupt signal is generated for reading the PSI/SI packets, if the packet count number is greater than 0.

3. The method of claim 2, wherein the PSI/SI packets are read, if the packet count number is equal to the predetermined packet number.

4. The method of claim 3, further comprising setting the packet count number to an initial value, if the PSI/SI packets are read.

5. The method of claim 1, further comprising alternately writing and reading the PSI/SI packets.

6. An apparatus for receiving broadcasting service information in a digital broadcasting system, comprising:

a Packet Identifier (PID) filter for detecting packets carrying broadcasting service information with a PID identical to a preset PID from received Transport Stream (TS) packets, the broadcasting service information being Program Specific Information/Service Information (PSI/SI);

a packet counter for counting the number of the detected PSI/SI packets;

a memory for storing the detected PSI/SI packets;

an interrupt generator for providing an interrupt signal for reading the PSI/SI packets, if the packet count number reaches a predetermined packet number;

a controller for setting the PID for filtering regarding the TS packets, and reading the PSI/SI packets, if the interrupt signal is received from the interrupt generator; and

a timer for starting to count when a PSI/IS packet is detected,

wherein if the timer has counted a predetermined timer value, the controller compares the packet count number with 0 and reads the PSI/SI packets if the packet count number is greater than 0.

7. The apparatus of claim 6, wherein the interrupt generator generates the interrupt signal for reading the PSI/SI packets, if the packet count number is greater than 0.