Display apparatus and control method thereof

• US 20070009119A1
• Filed: 05/09/2006
• Published: 01/11/2007
• Est. Priority Date: 06/14/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Young-chan
• Granted Patent: US 8,818,008 B2
• Time in Patent Office: Days
• US Class Current: 381/306
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

A display apparatus includes a display part to display an image thereon, a speaker to output sound, an audio input part to receive an audio signal, an audio signal processor to process the audio signal input from the audio input part through the speaker and to output the audio signal, a control signal output part to output a predetermined control signal, a detector to detect whether the audio signal is input through the audio input part, and a controller to control the audio signal processor to control the audio signal according to the control signal from the control signal output part if the audio signal is input by the detector, and to control display conditions of the image displayed on the display part according to the control signal from the control signal output part if the control signal is not input by the detector.

Claims

1. A display apparatus comprising:

a display part to display an image thereon;

a speaker to output sound;

an audio input part to receive an audio signal;

an audio signal processor to process the audio signal input from the audio input part through the speaker and to output the audio signal;

a control signal output part to output a predetermined control signal;

a detector to detect whether the audio signal is input from the audio input part; and

a controller to control the audio signal processor to control the audio signal according to the predetermined control signal if the detector detects that the audio signal is input, and to control display conditions of the image displayed on the display part according to the predetermined control signal if the detector detects that the audio signal is not input.

2. The display apparatus according to claim 1, wherein the detector comprises a connection detector to detect whether an external device is connected to the audio input part.

3. The display apparatus according to claim 2, wherein the controller controls the audio signal processor to control a volume of the speaker according to the predetermined control signal if a connection of the external device is detected by the connection detector, and controls the display conditions of the image displayed on the display part according to the predetermined control signal if the connection of the external device is not detected by the connection detector.

4. The display apparatus according to claim 3, wherein the controller controls a brightness level of the image displayed on the display part according to the predetermined control signal if the connection of the external device is not detected by the connection detector.

5. The display apparatus according to claim 3, further comprising:

a video signal processor to process a video signal input from the external device, wherein the controller controls the video signal processor to control the display conditions of the image displayed on the display part if the connection of the external device is not detected by the connection detector.

6. The display apparatus according to claim 3, wherein the audio input part comprises an audio input terminal into which an audio output jack of the external device is insertable, and the connection detector detects whether the external device is connected according to whether the audio output jack is inserted into the audio input terminal.

7. The display apparatus according to claim 3, further comprising:

a power supply to supply power to the audio signal processor; and

a power switch to be switched on to supply the power to the audio signal processor from the power supply if the connection of the external device is detected by the connection detector, and to be switched off to cut off the power supplied to the audio signal processor from the power supply if the connection of the external device is not detected by the connection detector.

8. The display apparatus according to claim 7, wherein the controller controls the power switch to turn on and off the audio signal processor according to a determination of whether the connection of the external device is detected by the connection detector.

9. The display apparatus according to claim 8, wherein the controller supplies the power to the audio signal processor if the connection of the external device is detected by the connection detector, and cuts off the power supplied to the audio signal processor if the connection of the external device is not detected by the connection detector.

10. A display apparatus comprising:

a display part to display an image thereon;

a speaker to output sound;

an audio input part to receive an audio signal;

an audio signal processor to output the audio signal input from the audio input part through the speaker;

a detector to detect whether the audio signal is input from the audio input part; and

an audio power manager to supply power to the audio signal processor if the detector detects that the audio signal is input, and to cut off the power supplied to the audio signal processor if the detector detects that the audio signal is not input.

11. The display apparatus according to claim 10, wherein the detector comprises a connection detector to detect whether an external device is connected to the audio input part.

12. The display apparatus according to claim 11, wherein the audio power manager supplies the power to the audio signal processor if a connection of the external device is detected by the connection detector, and cuts off the power supplied to the audio signal processor if the connection of the external device is not detected by the connection detector.

13. The display apparatus according to claim 12, wherein the audio input part comprises an audio input terminal into which an audio output jack of the external device is insertable, and the connection detector detects whether the external device is connected according to whether the audio output jack is inserted into the audio input terminal.

14. The display apparatus according to claim 12, wherein the audio power manager comprises a power supply to supply the power to the audio signal processor and a power switch to be switched on to supply the power to the audio signal processor from the power supply if the connection of the external device is detected by the connection detector, and to be switched off to cut off the power supplied to the audio signal processor from the power supply if the connection of the external device is not detected by the connection detector.

15. The display apparatus according to claim 12, further comprising:

a control signal output part to output a predetermined control signal; and

a controller to control a volume of the speaker according to the predetermined control signal if the connection of the external device is detected by the connection detector, and to control display conditions of the image displayed on the display part according to the predetermined control signal if the connection of the external device is not detected by the connection detector.

16. The display apparatus according to claim 15, wherein the controller controls the power switch to turn on and off the audio signal processor according to whether the connection of the external device is detected by the connection detector.

17. A method of controlling a display apparatus, the display apparatus having a display part to display an image thereon, a speaker to output sound, an audio input part to receive an audio signal, an audio signal processor to output the audio signal input from the audio input part through the speaker, and a control signal output part to output a predetermined control signal, the method comprising:

detecting whether an external device is connected to the audio input part;

controlling a volume of the speaker according to the predetermined control signal if the external device is detected to be connected to the audio input part; and

controlling display conditions of the image displayed on the display part according to the predetermined control signal if the external device is not detected to be connected to the audio input part.

18. The method according to claim 17, wherein the controlling the display conditions of the image displayed on the display part comprises controlling a brightness of the image displayed on the display part according to the control signal from the control signal output part.

19. The method according to claim 17, further comprising:

supplying power to the audio signal processor if detected that the external device is connected to the audio input part; and

cutting off power supplied to the audio signal processor if the external device is not detected to be connected to the audio input part.

20. A display apparatus, comprising:

an audio unit to generate sound;

a display part to display an image; and

a controller to output a first control signal when an external device is connected to the display apparatus to control a characteristic of the sound, and to output a second control signal when the external device is not connected to the display apparatus to control a characteristic of the displayed image.

21. The display apparatus of claim 20, wherein:

the controller controls at least one of a volume, a bass, a treble, a pitch, and an amplification of the sound output by the audio unit according to the first control signal; and

the controller controls at least one of a vertical frequency, a resolution, a picture ratio, and a brightness of an image displayed on the display part according to the second control signal.

22. The display apparatus of claim 20, further comprising:

a detector unit to detect whether the display apparatus is connected to an external device,

wherein the controller generates the first control signal and the second control signal according to the detection operation of the detector unit.

23. The display apparatus of claim 22, wherein the controller outputs the first control signal when the detector unit detects that the apparatus is connected to the external device, and the controller outputs the second control signal when the detector does not detect that the apparatus is connected to the external device.

24. The display apparatus of claim 20, wherein the audio unit, the display part, and the controller are located in a single body.

25. A method of controlling a display apparatus comprising an audio signal processor and a controller, the method comprising:

detecting whether the display apparatus is connected to an external device;

when the display apparatus is detected to be connected to the external device, providing power to the audio signal processor and controlling the controller to control the audio signal processor to control a volume of sound output from the display apparatus; and

when the display apparatus is not detected to be connected to the external device, cutting off the power supplied to the audio signal processor and controlling the controller to control display conditions of an image displayed on the display apparatus.