KR20100042702A - Apparatus and method for audio level controlling in image display device - Google Patents
Apparatus and method for audio level controlling in image display device Download PDFInfo
- Publication number
- KR20100042702A KR20100042702A KR1020080101812A KR20080101812A KR20100042702A KR 20100042702 A KR20100042702 A KR 20100042702A KR 1020080101812 A KR1020080101812 A KR 1020080101812A KR 20080101812 A KR20080101812 A KR 20080101812A KR 20100042702 A KR20100042702 A KR 20100042702A
- Authority
- KR
- South Korea
- Prior art keywords
- audio
- level
- signal
- input
- unit
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention provides an external signal input unit for receiving an audio signal from the outside; A tuner unit for receiving a broadcast signal; A controller configured to compensate the level of the audio signal by comparing the level of the audio signal input from the external signal input unit with a preset output level of the speaker; A voice processor configured to compensate the input audio signal according to a control signal of the controller; An audio output unit configured to output an audio signal compensated through the voice processing unit; And a memory unit for storing the rated output level of the audio output unit and storing the compensated audio level information. Therefore, the present invention detects the level of the audio signal input through the external device and attenuates the audio signal level to suit the maximum output level of the audio output unit. In addition, even if the audio signal level input through the external device is different, it is suitable for the user to listen to the audio output within a range that does not damage the audio output unit.
Description
The present invention relates to an image display device, and more particularly, to an apparatus and method for adjusting an audio signal of an image display device.
Generally, a TV is included in a video display device. The TV is tuned and demodulated into a voice and a video by tuning and demodulating a broadcast signal according to a channel selected by a user among broadcast signals transmitted from a broadcasting station. It is a video device that outputs through speech.
In recent years, as a video display device has been developed with the development of TV technology, a method of transmitting broadcast signals has been developed, and accordingly, interest in digital TV using a digital transmission method has increased. Digital TVs transmit analog broadcast signals in digital form, minimizing the effects of noise and facilitating the reproduction of the original image.
Such a video display device has been added with additional functions as a way to enhance the convenience of viewers. As one of such additional functions, the video display device is connected to various external devices through input / output terminals so that the video and internet can be accessed from the external device. Enable the use of information and the like. The user can adjust the audio signal to be output at the appropriate level of volume desired by the user when viewing information from the external external audio / video device through a television.
However, the size of the audio signal inputted from the external device to the external input / output terminal of the image display device is not constant. This is due to the specification of the external device. As a result, when the user uses this information from an external device, it is troublesome to adjust the level of an external audio signal.
In addition, even though audio of a normal input level is input, normal audio may not be output as audio of a level outside a predetermined standard is output or exceeded to a reference level range that can be output from a speaker.
Accordingly, an object of the present invention is to provide an apparatus and method for adjusting an audio signal of a projection display device that can be adjusted to suit the output level of a preset speaker when an audio signal is input through an external device.
An image display device according to an embodiment of the present invention for achieving the above object is an external signal input unit for receiving an audio signal from the outside; A tuner unit for receiving a broadcast signal; A controller configured to compensate the level of the audio signal by comparing the level of the audio signal input from the external signal input unit with a preset output level of the speaker; A voice processor configured to compensate the input audio signal according to a control signal of the controller; An audio output unit configured to output an audio signal compensated through the voice processing unit; And a memory unit for storing the rated output level of the audio output unit and storing the compensated audio level information.
As described above, the present invention detects the level of the audio signal input through the external device and attenuates the audio signal level to suit the maximum output level of the audio output unit.
Therefore, even if the audio signal level input through the external device is different, it is suitable for the user to listen and the audio can be output within a range that does not damage the audio output unit.
In addition, even if the user does not adjust the volume according to the cumbersome input of the audio signal, the user can conveniently adjust the size of the audio signal according to a preset condition to provide convenience to the user and realize accurate audio output.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a block diagram showing an audio signal adjusting apparatus of a video display device to which the present invention is applied.
Referring to FIG. 1, the
The
The external
The
The
The video / audio
When the signal selected by the video / audio
The MPEG decoder and the video / audio
In particular, when the MPEG decoder and the video /
When the images of the collected channels are displayed on the screen S, the collected channels and the currently selected channel are displayed in a small size on the screen, and one of the smaller channels is transmitted through the
The MPEG decoder and the video / audio signal processor according to an embodiment of the present invention detect an audio level from an external device input from the external
The
The video
The
Among the commands input through the
The
The
2 is a detailed block diagram of an MPEG decoder and a video /
The MPEG decoder and the video /
Although not shown, a switching unit may be further provided to selectively output external input audio or broadcast signal audio. It may also include an
As described above, the operation of adjusting the audio signal through the configuration of the image display device according to an exemplary embodiment of the present invention will be described with reference to FIG. 3.
The
The
The
The calculating
The
The audio level compensation operation may be performed when a periodic setting or an input mode change or a volume control request signal from a user is detected.
1 is a block diagram of a video display device to which the present invention is applied.
2 is a detailed block diagram of a video display device for audio level compensation according to an exemplary embodiment of the present invention.
3 is a flowchart illustrating an operation of adjusting an audio signal of an image display device according to an exemplary embodiment of the present invention.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080101812A KR20100042702A (en) | 2008-10-17 | 2008-10-17 | Apparatus and method for audio level controlling in image display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080101812A KR20100042702A (en) | 2008-10-17 | 2008-10-17 | Apparatus and method for audio level controlling in image display device |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20100042702A true KR20100042702A (en) | 2010-04-27 |
Family
ID=42217969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080101812A KR20100042702A (en) | 2008-10-17 | 2008-10-17 | Apparatus and method for audio level controlling in image display device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20100042702A (en) |
-
2008
- 2008-10-17 KR KR1020080101812A patent/KR20100042702A/en not_active Application Discontinuation
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7975285B2 (en) | Broadcast receiver and output control method thereof | |
KR100651894B1 (en) | Display device and control method of the same | |
US8407732B2 (en) | Electronic equipment control system | |
US8750386B2 (en) | Content reproduction device | |
US20070285568A1 (en) | Television receiver | |
US20110307915A1 (en) | Apparatus, systems and methods for pre-tuning a second tuner in anticipation of a channel surfing activity | |
KR101356483B1 (en) | Apparatus and Method for auto controlling audio volume of digital TV | |
CN1306800C (en) | Method and apparatus for controlling a video signal processing apparatus | |
US20090201422A1 (en) | Automatic input change based on remote control mode change | |
JP2007027973A (en) | Remote control apparatus and video display system | |
KR20100042702A (en) | Apparatus and method for audio level controlling in image display device | |
JP6947356B2 (en) | Acoustic control device and acoustic control method | |
KR100560878B1 (en) | Method and apparatus for processing a screen of an internet tv | |
KR20100027318A (en) | Apparatus and method for audio outputting in image display device | |
KR100727120B1 (en) | TV and method for auto processing offset and gain of image signal | |
KR100863835B1 (en) | Method and apparatus for controlling the viewing conditions classified by channel of image display device | |
KR20060128260A (en) | Method for controlling receive audio only channel | |
KR100740297B1 (en) | Sound control method for automatically controlling respective volumes of channels | |
KR20100072681A (en) | Apparatus and method for image displaying in image display device | |
KR101067775B1 (en) | Apparatus and method for control woofer of TV | |
KR100648339B1 (en) | Gain control apparatus and method in the digital television | |
KR0184967B1 (en) | Sound level and tone control apparatus of television | |
KR100777302B1 (en) | Method for auto controlling picture and sound quality by discomfort index and television set thereof | |
KR100252617B1 (en) | Television receptor | |
KR0158320B1 (en) | Apparatus for indicating the recording state using sub-picture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |