METHOD AND APPARATUS FOR CHANGING CHANNEL IN DIGITAL BROADCASTING RECEIVER

• US 20090019513A1
• Filed: 02/26/2008
• Published: 01/15/2009
• Est. Priority Date: 07/09/2007
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, In-cheol, SEONG, Yeong-kyeong, SONG, Hyo-jung, PARK, Min-kyu, CHOI, Yoon-hee
• Application Number:
  US12/037,383
• Publication Number:
  US 20090019513A1
• Time in Patent Office: Days
• US Class Current: 725/151
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 21/4384 involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency

Abstract

A method and apparatus for changing a channel in a digital broadcasting receiver and for hiding a delay that occurs due to the change of the channel are provided. The method includes receiving broadcasting data of at least one channel except for a current channel by using a time division method, based on a pre-set schedule; storing the received broadcasting data; and when a control signal for changing a channel is input, outputting broadcasting contents of the changed channel, which corresponds to the control signal, to the display device by using the stored broadcasting data.

Claims

1. A method of changing a channel in a digital broadcasting receiver, the method comprising:

receiving broadcasting data of at least one channel except for a current channel by using a time division method, based on a pre-set schedule;

storing the received broadcasting data; and

if a control signal for changing to a new channel is input, outputting broadcasting contents of the new channel, which corresponds to the control signal, by using the stored broadcasting data.

2. The method of claim 1, further comprising determining whether a process to output the broadcasting contents of the new channel in real-time is completed, wherein if it is determined that the process is completed, the broadcasting contents of the new channel are output in real-time.

3. The method of claim 2, wherein the process to output the broadcasting contents of the new channel in real-time comprises at least one of tuning to the new channel, extracting Program and System Information (PSI) information, and I frame input standby.

4. The method of claim 1, wherein the at least one channel is adjacent to the current channel.

5. The method of claim 1, wherein the at least one channel is a channel preferred by a user.

6. The method of claim 1, wherein in the outputting the broadcasting contents, a frame is added to the stored broadcasting data, and the broadcasting contents of the new channel is output based on the broadcasting data to which the frame is added.

7. The method of claim 1, wherein the stored broadcasting data is audio-video (A/V) data.

8. An apparatus for changing a channel in a digital broadcasting receiver, the apparatus comprising:

a receiving unit which receives broadcasting data of at least one channel except for a current channel by using a time division method, based on a pre-set schedule;

a storing unit which stores the received broadcasting data; and

an outputting unit which outputs broadcasting contents of a new channel, which corresponds to a control signal for changing to the new channel, by using the stored broadcasting data, if the control signal is input.

9. The apparatus of claim 8, further comprising a determining unit which determines whether a process to output the broadcasting contents of the new channel in real-time is completed, wherein if the process is completed, the outputting unit outputs the broadcasting contents of the new channel in real-time.

10. The apparatus of claim 9, wherein the process required to output broadcasting contents of the new channel in real-time comprises at least one of tuning to the new channel, extracting Program and System Information (PSI) information, and I frame input standby.

11. The apparatus of claim 8, wherein the at least one channel is adjacent to the current channel.

12. The apparatus of claim 8, wherein the at least one channel is a channel preferred by a user.

13. The apparatus of claim 8, wherein the outputting unit adds a frame based on the stored broadcasting data and outputs the broadcasting contents of the new channel based on the broadcasting data to which the frame is added.

14. The apparatus of claim 8, wherein the stored broadcasting data is audio-video (A/V) data.

15. A computer readable recording medium having embodied thereon a computer program for executing a method comprising:

receiving broadcasting data of at least one channel except for a current channel by using a time division method, based on a pre-set schedule;

storing the received broadcasting data; and

if a control signal for changing to a new channel is input, outputting broadcasting contents of the new channel, which corresponds to the control signal, by using the stored broadcasting data.