Apparatus and method for performing image processor arrangement according to broadcast signals
A broadcast signal and image processing technology, applied in image communication, high-definition standard conversion, high-definition television systems, etc., can solve problems such as the inability to display the original image signal and the inability to use the optimal setting value for the image signal.
Inactive Publication Date: 2007-02-28
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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As mentioned above, regardless of whether the input signal is originally a high-definition image signal or an image signal converted from a standard image signal to HD mode for broadcasting, it is processed as a high-definition image signal mode. Therefore, for broadcasting the standard image signal The image signal converted to HD mode cannot use the optimal setting value, so the original image signal cannot be displayed optimally
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[0039] Hereinafter, a preferred embodiment is given, and the device and method for setting the image processing unit according to the type of the broadcast signal are described in detail in conjunction with the accompanying drawings as follows.
[0040] Fig. 2 is a schematic diagram of a digital TV using a device for setting an image processing unit according to the type of signal in the present invention, and Fig. 3 is a flowchart of a method for setting an image processing unit according to the type of broadcast signal in the present invention.
[0041] As shown in Figure 2, use the digital television of the device that carries out image processing part to arrange according to the kind of signal among the present invention, comprise: tuner 110, demultiplexing part 120, image signal processing part 130, audio signal processing part 131, display unit 140, speaker 141, frequency range conversion unit 251, image state determination unit 252, control unit 250, image quality settin...
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An apparatus and a method for setting an image processing part according to a kind of a broadcasting signal are provided to selectively apply an image quality setting value for implementing optimal image quality in each resolution according to an original image state. A demultiplexing part(120) separates an image signal from a broadcasting signal inputted at an HD(High Definition) mode. An image signal processing part(130) applies a set image quality setting value to the separated image signal and processes the image signal. A frequency domain conversion part(251) converts the image signal outputted from the demultiplexing part into a signal of a frequency domain. An image state determination part(252) determines an original image state of the image signal under the HD mode according to an output of the frequency domain conversion part. A control part(250) outputs a control signal so that a image signal process suitable for the original image state is performed. An image quality setting part(170) differently sets an image quality setting value of the image signal processing part according to an image state.
Description
technical field [0001] The present invention relates to a device and method for setting an image processing unit according to the type of broadcast signal in a digital television. Background technique [0002] At present, sky radio digital TV signals broadcast advertisements in high-definition image (HD) broadcasting time slots or convert general standard image (SD) signals outside HD broadcasting time slots into high-definition image format, and then broadcast them. At this time, the original broadcast source (source) is an image signal in the standard mode, but has been transformed into a high-definition image mode. Therefore, the digital TV recognizes the corresponding image signal as a high-definition image signal and displays it with a setting value suitable for the high-definition image signal. A general digital television receives most of the image signals, and provides images in various formats according to the received image signals and the display mode set in the i...
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Login to View More IPC IPC(8): H04N7/015H04N21/45
CPCG06F17/14H04N7/0125
Inventor 金璟兌
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD