Control apparatus and control method for image display
An image display and control device technology, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of image processor misjudgment and inability to correctly control image display devices, etc.
Inactive Publication Date: 2009-03-04
PIXART IMAGING INC
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However, although the image sensor will not be disturbed in the environment of general indoor fluorescent lamps (with a wavelength of 350-750 nm), if there is a halogen light source (with a wavelength of about 350-1100 nm) in the room, it will be affected. The impact of the halogen light source, especially when the halogen light source is located near the reference point, the image acquired by the image sensor through the infrared filter will include the reference point and the halogen light source, This will lead to misjudgment by the back-end image processor, so that the image display device cannot be correctly controlled
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[0051] In order to make the above and other objects, features, and advantages of the present invention more obvious, the following describes the embodiments of the present invention in conjunction with the accompanying drawings in detail as follows. In addition, in the description of this specification, similar components are denoted by the same reference numerals.
[0052] Refer to figure 1 As shown, it shows a first embodiment of a control device 100 for an image display 10 according to the present invention. The control device 100 includes an image display 10 having a display screen 102 for displaying image frames, Two reference points 12, 14, modulation unit 16 and remote control device 20. Examples of the image display 10 include a TV, a screen of a game console, a projection screen, a computer screen, a monitor, or any other device for displaying images. The image display 10 can be controlled via a user interface (user interface) to control its functional status settings an...
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The invention discloses a control device that is used for controlling an image display, and the control device comprises at least one reference point that is used for generating a preset spectral signal, a modulating unit that is used for modulating the preset spectral signal in a preset way, and a remote control device, wherein, the remote control device comprises an image sensor and a processing unit, the image sensor is used for receiving the modulated preset spectral signal and generating a digital signal, the processing unit is used for receiving the digital signal and modulating the digital signal so as to form a digital image that only has an image of the reference point and compute the image change of the image that is generated on the digital image by the reference point; furthermore, the remote control device relatively controls the image display according to the image change, thus removing the interference of other optical sources which generate spectra that is overlapped with the spectrum of the preset spectral signal. The invention further provides a control method of the image display.
Description
Technical field [0001] The present invention relates to a control device and a control method of an image display, which uses at least one reference point to generate a modulated preset spectral signal, and after sensing the preset spectral signal with an image sensor, it is calculated that the reference point is The image on the image sensor changes and the image display is controlled accordingly. Background technique [0002] An existing cursor control method, such as the "Cursor Control Method and Device" in Taiwan Patent Publication No. 200540687, discloses a method for cursor control using a handheld device. First, the handheld device uses optical devices to monitor movement. Then, the position difference is calculated based on the detected movement. Then, the handheld device wirelessly transmits the position difference to a specific device, thereby controlling the cursor activity on the specific device according to the position difference, and operating the application prog...
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IPC IPC(8): G09G5/00G09G5/08G09G5/38G08C17/02G08C23/00G08C23/04
Inventor 林卓毅郭明辉
Owner PIXART IMAGING INC