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

• US 20070220584A1
• Filed: 02/14/2007
• Published: 09/20/2007
• 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
• Granted Patent: US 8,351,410 B2
• Time in Patent Office: Days
• US Class Current: 725/135
• 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 PS/ISI 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; and

reading the PSI/SI packets, if the packet count number reaches a predetermined packet number.

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

3. The method of claim 2, further comprising generating an interrupt signal for reading the PSI/SI packets, if the packet count number reaches the predetermined packet number.

4. The method of claim 2, further comprising generating a write enable signal for writing the detected PSI/SI packets in a memory and a read enable signal for reading the detected PSI/SI packets from the memory.

5. The method of claim 2, further comprising setting the packet count number to an initial value, when the detected PSI/SI packets are read.

6. The method of claim 3, further comprising setting the packet count number to an initial value, when the interrupt signal is generated.

7. The method of claim 1, further comprising:

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.

8. The method of claim 7, further comprising generating an interrupt signal for reading the PSI/SI packets, if the packet count number is greater than 0.

9. The method of claim 8, further comprising reading the PSI/SI packets, if the packet count number is equal to the predetermined packet number.

10. The method of claim 9, further comprising setting the packet count number to an initial value, if the PSI/SI packets are read.

11. The method of claim 7, further comprising alternately writing and reading the PSI/SI packets.

12. 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; and

a controller for setting the PID for filtering regarding the TS packets, and reading the PSI/SI packets, if the packet count number reaches a predetermined packet number.

13. The apparatus of claim 12, further comprising:

a memory for storing the detected PSI/SI packets; and

a memory controller for controlling writing and reading of the detected PSI/SI packets.

14. The apparatus of claim 13, wherein the memory controller generates a write enable signal for writing the detected PSI/SI packets in the memory and a read enable signal for reading the detected PSI/SI packets from the memory.

15. The apparatus of claim 14, further comprising an interrupt generator for providing an interrupt signal for reading the PSI/SI packets to the controller, if the packet count number reaches the predetermined packet number.

16. The apparatus of claim 15, wherein if the controller receives the interrupt signal, the controller reads the detected PSI/SI packets from the memory, when the memory controller generates the read enable signal for the memory.

17. The apparatus of claim 16, wherein when the PID filter receives the write enable signal from the memory controller, the PID filter writes the PSI/SI packets in the memory, and when the controller receives the read enable signal from the memory controller, the controller reads the PSI/SI packets from the memory.

18. The apparatus of claim 15, wherein when the interrupt generator generates the interrupt signal, the interrupt generator sets the packet count number to an initial value.

19. The apparatus of claim 12, further comprising a timer for starting to count when a PSI/IS packet is detected.

20. The apparatus of claim 19, 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.

21. The apparatus of claim 20, further comprising an interrupt generator for generating an interrupt signal for reading the PSI/SI packets, if the packet count number is greater than 0.