TW496081B - Locking method for image screen on the television box and the device thereof - Google Patents

Abstract

A locking method for image screen on the television and the device thereof, which is used to correct the non-standard signal received by the television box to be compliant with the standard video signal and timing and displayed on the computer screen. The method comprises a process for filtering out an arbitrary non-continuous image timing point for the program to lock the operation clock at a certain fixed value; and, after processing the original video signal, adding with synchronizing signal. The device comprises the detection circuit for non-continuity of the image, the synchronization signal tracking program, the video signal processing circuit, and the synchronization signal correction circuit.

Description

496081 V. Description of the invention (1) The present invention relates to a kind of electric face dongbo: W Jin Jin Er ^ + co-broadcasting method for locking the image screen of the people and the standard video signal and timing of the device. Displayed on Rongmu: Fang Press, now the TV image is displayed on the Lei Nai Kai TV box), only the TV tuner: TV 5 converter (commonly known as the signal sent directly to the conversion circuit "22 = R) The input signal does not meet the expected standard 'or the image signal loses the same 2 and the standard image cannot be rendered. Make the computer screen appear chaotic images, which is the main method of locking the picture and its device of the present invention # When providing a television box image signal, it will be repaired so that == non-standard image timing is obtained. Clearly displayed on the computer screen. 〇Indication of the image signal and the method described on January 1 'is to send the silk into the mountain and then send it out in the form of a pulse signal. The continuous image time point, * The method described, = Control :: = Judgment = fixed value' makes the micro-control The device calculates = set to a certain fixed but less than = period 'approximately i / rate or increase the signal level for: electrical inversion or removal of fixed point frequency The aforementioned method is selected by Jiang Zhizhi. Discontinuous circuit, used to filter out the image signal after the level is added. 俨 = In addition to the fixed point frequency or increase the signal, the aforementioned devices are included to form any discontinuous image time point of the standard image signal. Page 5 5. Description of the invention (2) The aforementioned signal of the numbering level, etc. The aforementioned signal of the synchronous image of the present invention is described in detail in the embodiment of the invention. Contains a synchronization signal in addition to the fixed point frequency number correction circuit rate and increase the letter for the main special picture system second picture system third circle system fourth picture system fifth picture system sixth picture system seventh picture system Explanation of the drawing number of the eighth perimeter system: 1 1 · Image is not 1 4 3 · Signal 1 4 1 · Signal 1 3 · Please refer to the above for synchronization), it is based on the picture, so it is mainly filtered as shown in Figure 1. The present invention, the present invention, the present invention, the present invention, the present invention continuously detects and buffers the electrical reverse electric signal to produce a picture, sequential scan, discontinuity points shown by lines and two and its, and more like a signal circuit program image The removal of the signal, the synchronization of the image, and the novelty of the waveform block diagram flow (discontinuous inversion electrical fixed point signal slow signal repair) will be matched with the following drawings, as shown in the figure: Figure. The test circuit ^ 1 2 ^ 15 generator 14 2 general image signal method from the point scan into the line between the line, is based on the image time point detection circuit circle diagram. Frequency circuit diagram Positive circuit 囷. • Signal processing • Tracking program • Synchronization correction Free delivery in the form of road 1 1 timely

Page 5 496081

1 side: Judging by the tracking program 12 and the standard synchronization signal generator 13, the method is to use the microcontroller to judge the operating clock H 3 and calculate the horizontal synchronization cycle; m is a fixed value ’

5734 seconds, (such as: the micro-second heart :: 4 seconds but less than " I Α / Γ ττ β Ke is used as the clock of the device calculation is set to 9 4 R 7 β 25u: and the calculated horizontal synchronization signal period is 63 · 4756 〇 After the aforementioned image signal is subjected to another signal processing, three types of image signal inverting circuits 141 are provided to be processed as anti-believe 1 4 2 to remove the fixed point frequency, and the initial signal to increase the signal level; signal processing ν circuit 1 4 The original number is available for selection, and includes: a signal number, a fixed-point frequency circuit is removed, and a signal buffer circuit 1 4 3 sends the original, tracked, synchronized, and processed signals to the synchronization signal correction circuit i. 5. 俾 Add a synchronization signal, so that the non-standard image signal can be corrected to become a standard image signal and timing for clear display on the computer screen. Please refer to the fourth figure 'the image discontinuity measurement circuit of the present invention 1 1 is composed of two inverters IC 1, I c 2 and its peripheral components for extracting discontinuous pulse signals. Referring to the fifth figure, the inverting circuit 1 4 1 of the present invention includes three Electricity The crystals Q1, Q2, and Q3 cause the original image signal to pass through the crystals to form the inversion of the image signal. As shown in FIG. 6, the fixed-point frequency removing circuit 1 4 2 of the present invention includes most of the inductors, The original image signal is passed through a filter composed of these inductors and peripheral components to filter out fixed-point frequencies.

Page 6 496081 V. Description of the invention (4) As shown in Figure 7, the crystals Q1 and Q 2 are used to amplify the effect, and as shown in Figure 8, there is a capacitor, and a crystal is added to the inverter I to constitute the correction synthesis institute. As described above, the detected and accurate image signal is patented according to the law, and to the sense of morality, the signal buffer circuit 143 of the present invention is composed so that the original image signal passes through the circuit structure. 1 synchronous circuit IC 1 (7 4 HC 4 0 b 3 ^ Q 丄 in this embodiment and an inverter IC 2 to synchronize the predicted signal c 2 and make the original signal from I c to 0). The purpose of transformation is to input J and add to

: The present invention corrects the non-tracking, processing, and synchronization received by the TV box to make: U convenient. Xiao Bureau will review it and give it early.

Claims (1)

6. Scope of Patent Application1. A method for locking the image of a TV box image, which mainly includes selecting any discontinuous image from the original image signal in a timely manner and selecting it in the form of a pulse signal for program judgment; The running clock is fixed at a horizontal synchronization period that is fixed for its calculation, which is approximately equal to 1κ1 5 7 3 4 seconds at 1/15734 seconds; processing the original image signal into an inverted signal, removing fixed point frequency and increasing the signal level, etc. Three types of image signals are available for selection; synchronizing signals are added to the aforementioned synchronization signals and processed signals to modify them into standard image signals. 2 · —A kind of locking device for the TV box image screen, including: an image discontinuity detection circuit for screening discontinuous image points; a signal processing circuit for processing the anti-fixed point frequency removal of the original image signal And increase the signal level; a synchronization signal correction circuit is used to add the processed image signal to the synchronization signal. 3 · The TV box image picture locking device as described in item 2 of the scope of patent application, wherein the signal processing circuit includes a signal circuit, a fixed point frequency removing circuit, and an image signal & , But the small rate and, with the time phase, the number, the surface of the inverter circuit