METHOD AND DEVICE FOR RECEIVING WIRELESS BROADCAST SIGNALS

• US 20090150967A1
• Filed: 07/03/2008
• Published: 06/11/2009
• Est. Priority Date: 12/06/2007
• Status: Abandoned Application

• Current Assignee: AVerMedia Technologies, Inc.
• Original Assignee: AVerMedia Technologies, Inc.
• Inventors: Su, Hung-Shen, Chen, Chung-Jen
• Application Number:
  US12/167,770
• Publication Number:
  US 20090150967A1
• Time in Patent Office: Days
• US Class Current: 725/153
• CPC Class Codes: H04H 20/26 Arrangements for switching distribution systems
• CPC Class Codes: H04H 60/51 of receiving stations

Abstract

A method and a device for receiving wireless broadcast signals are provided. The device includes a positioning module, a memory storing therein a first information table and a second information table, a signal-receiving and processing module, a processor and a client terminal. The method includes steps of: receiving a first wireless broadcast signal at a first frequency contained in the first information table and presenting contents represented by the first wireless broadcast signal when the device is positioned in a first broadcast area; automatically searching for a second frequency in the second information table when the device is positioned in a second broadcast area wherein the second frequency corresponds to the information associated with the first frequency in the first information table; and receiving a second wireless broadcast signal at the second frequency and presenting contents represented by the second wireless broadcast signal.

Claims

1. A method for receiving wireless broadcast signals applied to a device storing therein a first information table and a second information table, wherein the method comprises steps of:

receiving a first wireless broadcast signal at a first frequency contained in the first information table and presenting contents represented by the first wireless broadcast signal when the device is positioned in a first broadcast area;

automatically searching for a second frequency in the second information table when the device is positioned in a second broadcast area wherein the second frequency corresponds to the information associated with the first frequency in the first information table; and

receiving a second wireless broadcast signal at the second frequency and presenting contents represented by the second wireless broadcast signal.

2. The method according to claim 1, further comprises step of:

obtaining a current position information of the device by a positioning module of the device; and

determining whether the device is positioned in the first broadcast area or the second broadcast area according to the current position information.

3. The method according to claim 2 wherein the positioning module obtains the current position information by receiving a positioning signal issued from a satellite positioning system.

4. The method according to claim 1 wherein there is an overlapping area between the first broadcast area and the second broadcast area, and the method further comprises steps of:

automatically searching for a second frequency in the second information table when the device is positioned in the overlapping area wherein the second frequency corresponds to the information associated with the first frequency in the first information table; and

receiving the first wireless broadcast signal at the first frequency and presenting contents represented by the first wireless broadcast signal, or receiving the second wireless broadcast signal at the second frequency and presenting contents represented by the second wireless broadcast signal.

5. The method according to claim 4 wherein the overlapping area is defined by an application program loaded into the device.

6. The method according to claim 1 wherein the first information table and the second information table includes channel frequencies, channel identifiers and channel titles corresponding to the first wireless broadcast signal and the second wireless broadcast signal.

7. The method according to claim 6 wherein the searching step comprises steps of:

searching for the channel identifier and/or channel title corresponding to the first frequency in the first information table;

searching for the same channel identifier and/or channel title in the second information table; and

finding out the second frequency corresponding to the same channel identifier and/or channel title in the second information table.

8. The method according to claim 6 wherein the first wireless broadcast signal and the second wireless broadcast signal represent the same program content of the same channel.

9. The method according to claim 1 wherein the first wireless broadcast signal is transmitted at the first frequency in the first broadcast area and the second wireless broadcast signal is transmitted at the second frequency in the second broadcast area.

10. A device for receiving a first wireless broadcast signal in a first broadcast area and a second wireless broadcast signal in a second broadcast area, comprising:

a positioning module for providing a current position information;

a memory storing a first information table and a second information table wherein the first information table includes at least a first frequency and the second information table includes at least a second frequency;

a signal-receiving and processing module for receiving and processing the first wireless broadcast signal and the second wireless broadcast signal;

a processor controlling the signal-receiving and processing module to receive the first wireless broadcast signal at the first frequency when the device is positioned in the first broadcast area and receive the second wireless broadcast signal at the second frequency when the device is positioned in the second broadcast area according to the current position information, and then processing and outputting the wireless broadcast signal; and

a client terminal for presenting the wireless broadcast signal outputted from the processor,

wherein the processor searches for the second frequency in the second information table according to the channel information corresponding to the first frequency in the first information table.

11. The device according to claim 10 wherein the positioning module obtains the current position information by receiving a positioning signal issued from is satellite positioning system.

12. The device according to claim 10 wherein there is an overlapping area between the first broadcast area and the second broadcast area, and the processor controls the signal-receiving and processing module to selectively receive the first wireless broadcast signal at the first frequency and receive the second wireless broadcast signal at the second frequency when the device is positioned in the overlapping area.

13. The device according to claim 10 wherein the overlapping area is defined by an application program loaded into the device.

14. The device according to claim 10 wherein the first information table and the second information table includes channel frequencies, channel identifiers and channel titles corresponding to the first wireless broadcast signal and the second wireless broadcast signal.

15. The device according to claim 14 wherein the processor searches for the channel identifier and/or channel title corresponding to the first frequency in the first information table, and finds out the second frequency corresponding to the channel identifier and/or channel title in the second information table.

16. The device according to claim 14 wherein the first wireless broadcast signal and the second wireless broadcast signal represent the same program content of the same channel.

17. The device according to claim 10, characterized in that the first information table and the second information table stored in the memory are updatable.

18. The device according to claim 10 wherein the first wireless broadcast signal and the second wireless broadcast signal are video signals or audio signals.

19. The device according to claim 10 wherein the first wireless broadcast signal and the second wireless broadcast signal represent digital TV programs or digital radio programs.

20. The device according to claim 10 wherein the device is arranged in a vehicle so as to be moved from the first broadcast area to the second broadcast area.