CONTROL CIRCUIT OF DISPLAY DEVICE HAVING PROGRAM SEARCH FUNCTION AND METHOD FOR CONTROLLING DISPLAY DEVICE TO RECEIVE PROGRAM INFORMATION OF TV PROGRAMS AND SELECTING PROGRAMS

• US 20080201745A1
• Filed: 01/18/2008
• Published: 08/21/2008
• Est. Priority Date: 02/16/2007
• Status: Abandoned Application

• Current Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Original Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Inventors: Chien, Pin-Hsiang
• Application Number:
  US12/016,215
• Publication Number:
  US 20080201745A1
• Time in Patent Office: Days
• US Class Current: 725/53
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/4828 for searching program descriptors retrieval of video data G06F16/739

Abstract

The present invention provides a control circuit of a program search display device and a method for controlling a display device to receive program information of TV programs and select programs. The method comprises: (a) receiving a TV signal; (b) processing the TV signal to generate program information; (c) storing the program information; (d) receiving an input data; (e) reading the program information and comparing the program information with the input data to generate a program comparison result; and (f) displaying the program comparison result.

Claims

1. A control circuit of a display device having a program search function, comprising:

a tuner, for receiving a TV signal;

a demodulator coupled to the tuner, for demodulating the TV signal to generate a demodulated signal;

a data analyzing unit coupled to the demodulator, for processing the demodulated signal to generate program information;

a storage unit coupled to the data analyzing unit, for storing the program information;

a receiving unit, for receiving an input data; and

a controller coupled to the tuner, the storage unit, and the receiving unit, for reading the program information from the storage unit and comparing the program information with the input data.

2. The control circuit of claim 1, wherein the receiving unit further receives a power-on signal, and the controller controls the display device to enter a power-on mode from a standby mode according to the power-on signal.

3. The control circuit of claim 2, wherein prior to the reception of the power-on signal by the receiving unit, the tuner receives the TV signal and the data analyzing unit processes the demodulated signal to generate the program information.

4. The control circuit of claim 1, further comprising:

a video decoder coupled to the demodulator, for decoding a video component of the demodulated signal to generate a decoded video signal; and

an image processing unit coupled to the video decoder and the controller, for processing the decoded video signal to generate a TV program image signal;

wherein the controller generates a program comparison result after comparing the program information and the input data, and the controller controls the image processing unit to display the program comparison result on a display unit.

5. The control circuit of claim 4, wherein when the receiving unit receives a program information browsing signal, the controller reads the program information from the storage unit and controls the image processing unit to output a program information browsing picture, so as to display the program information.

6. The control circuit of claim 4, wherein when a target program of the program comparison result is selected, the controller determines whether the target program is being broadcasted, and if the target program is being broadcasted, the controller controls the tuner to switch channel, so as to receive the target program.

7. A control circuit of a display device having a program search function, comprising:

a controller;

a first tuner coupled to the controller, for receiving a first TV signal;

a second tuner coupled to the controller, for receiving a second TV signal;

a demodulator coupled to the first tuner and the second tuner, for demodulating the first TV signal and the second TV signal to generate respectively a first demodulated signal and a second demodulated signal;

a data analyzing unit coupled to the demodulator, for processing the first demodulated signal to generate program information;

a storage unit coupled to the data analyzing unit, for storing the program information;

a video decoder coupled to the demodulator, for decoding a video component of the second demodulated signal to generate a decoded video signal; and

an image processing unit coupled to the video decoder and the controller, for processing the decoded video signal to generate a TV program image signal.

8. The control circuit of claim 7, further comprising:

a receiving unit coupled to the controller, for receiving an input data;

wherein the controller reads the program information from the storage unit and compares the program information with the input data to generate a program comparison result.

9. The control circuit of claim 8, wherein when the receiving unit receives a program information browsing signal, the controller reads the program information from the storage unit and controls the image processing unit to output a program information browsing picture, so as to display the program information.

10. The control circuit of claim 8, wherein when a target program of the program comparison result is selected, the controller determines whether the target program is being broadcasted, and if the target program is being broadcasted, the controller controls one of the first tuner and the second tuner to switch channel, so as to receive a TV signal corresponding to the target program.

11. A method for controlling a display device to receive program information of TV programs and select programs, comprising:

(a) receiving a TV signal;

(b) processing the TV signal to generate program information;

(c) storing the program information;

(d) receiving an input data;

(e) reading the program information and comparing the program information with the input data to generate a program comparison result; and

(f) displaying the program comparison result.

12. The method of claim 11, further comprising:

starting the display device to make the display device enter a power-on mode from a standby mode.

13. The method of claim 12, wherein the step (a) and the step (b) are completed under the standby mode.

14. The method of claim 11, further comprising:

reading the program information according to a program information browsing signal; and

displaying a program information browsing picture which comprises the program information.

15. The method of claim 11, further comprising:

determining whether a selected target program of the program comparison result is being broadcasted; and

receiving the TV signal corresponding to the target program if the target program is being broadcasted.

16. The method of claim 11, further comprising:

determining whether a selected target program of the program comparison result is being broadcasted; and

generating a reminder information and storing the reminder information if the target program is not being broadcasted.

17. The method of claim 16, further comprising:

determining whether the reminder information is stored; and

displaying a reminder picture according to the reminder information.

18. A method for controlling a display device to receive program information of TV programs and select programs, comprising:

(a) receiving a first TV signal with a first tuner;

(b) processing the first TV signal to generate program information;

(c) receiving a second TV signal with a second tuner;

(d) processing the second TV signal to generate a TV program image signal;

(e) storing the program information;

(f) receiving an input data; and

(g) reading the program information and comparing the program information with the input data.

19. The method of claim 18, further comprising:

starting the display device to make the display device enter a power-on mode from a standby mode.

20. The method of claim 19, wherein the step (a) and the step (b) are completed under the standby mode.

21. The method of claim 18, further comprising:

reading the program information according to a program information browsing signal; and

displaying a program information browsing picture which comprises the program information.

22. The method of claim 18, wherein a program comparison result is generated in the step (g), and the method further comprises:

displaying the program comparison result.

23. The method of claim 22, further comprising:

determining whether a selected target program of the program comparison result is being broadcasted; and

receiving the TV signal corresponding to the target program if the target program is being broadcasted.

24. The method of claim 22, further comprising:

determining whether a selected target program of the program comparison result is being broadcasted; and

generating a reminder information and storing the reminder information if the target program is not being broadcasted.

25. The method of claim 24, further comprising:

determining whether the reminder information is stored; and

displaying a reminder picture according to the reminder information.