CN101150674A - Booster operation control method and its circuit of TV receiver - Google Patents
Booster operation control method and its circuit of TV receiver Download PDFInfo
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- CN101150674A CN101150674A CNA2006100963442A CN200610096344A CN101150674A CN 101150674 A CN101150674 A CN 101150674A CN A2006100963442 A CNA2006100963442 A CN A2006100963442A CN 200610096344 A CN200610096344 A CN 200610096344A CN 101150674 A CN101150674 A CN 101150674A
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Abstract
The invention provides a method for controlling voltage regulator operation of television receivers, comprising following steps: initializing voltage regulator operation; detecting intensity of initial signals (electric field intensity) received by the television receiver antenna (ANT); judging the intensity of initial signals is whether or not smaller than the first standard value, if yes, turning on the voltage regulator, if no, detecting intensity of present signals received in an interval time; judging the detected intensity of present signals is whether or not larger than the second standard value, if yes, turning off the voltage regulator, if no, rejudging intensity of present signals is whether or not smaller than the first standard value, if yes, turning on the voltage regulator.
Description
Technical field
The present invention relates to control the method and the circuit of the voltage regulator operation of television receiver, relate in particular to the signal sensitivity that is received when the television receiver antenna when faint, automatically open voltage regulator, just often then be controlled to closed condition in sensitivity, in order to the booster operation control method and the circuit of the television receiver of often keeping best image quality.
Background technology
When television receiver is faint by the high-frequency signal electric field strength of the specific channel of antenna reception, use voltage regulator (Bosster) usually.High-frequency signal by voltage regulator amplification weak electric field channel is increased to certain intensity with electric field strength.
But, when the high-frequency signal of normal channel is transfused to by this voltage regulator, exist the problem of image quality deterioration.And when selecting the normal channel of electric field strength, for preventing this from occurring, the spectator must directly close voltage regulator, does very inconvenient like this.
Summary of the invention
Therefore, purpose of the present invention aims to provide when the signal sensitivity that is received in the television receiver antenna is faint, automatically open voltage regulator, just often then be controlled to closed condition in sensitivity, thereby the operation bidirectional that need not the user just can be kept the booster operation control method and the circuit of the television receiver of best image quality all the time.
To achieve these goals, technical being characterised in that of the present invention comprises: voltage regulator moves initialized step; The step of the intensity (electric field strength) of the initial stage signal that detection television receiver antenna (ANT) is received; Whether the intensity of judging detected initial stage signal is less than the step of first standard value; If above-mentioned judged result be the intensity of initial stage signal less than first standard value, then open voltage regulator, if surpass, the step of the current demand signal intensity that is received behind the assay intervals certain hour then; Whether the intensity of judging detected current demand signal is greater than the step of second standard value; If above-mentioned judged result be the intensity of current demand signal greater than second standard value, then close voltage regulator, if less than, the intensity that then rejudges current demand signal whether less than the step of first standard value; If above-mentioned judged result is that the intensity of current demand signal is less than first standard value then the step of opening voltage regulator.
To achieve these goals, other technologies feature of the present invention comprises following part: the signal that receives by antenna (ANT) is amplified, to improve the voltage regulator of sensitivity (electric field strength); The tuning tuner that passes through the signal of above-mentioned antenna (ANT) reception; Processing is from the vision signal handling part of the vision signal of above-mentioned tuner output; The sensitivity of the vision signal that perception is handled in above-mentioned vision signal handling part, the microcomputer that after differentiating current standard, moves according to related standards control voltage regulator.
In sum, effect of the present invention is: the signal standards of the specific channel that is received when television receiver antenna (ANT) is during less than first standard value (62dB), can open voltage regulator 100 according to the control of microcomputer 130, signal to weak electric field amplifies, to improve the sensitivity of received signal.
In addition, when the signal that is received when antenna (ANT) has the signal sensitivity of normal condition, according to the control of microcomputer 130, voltage regulator 100 cuts out, make it become init state, i.e. closed condition, thus can avoid the troublesome operation that the user must manual-lock voltage regulator 100.
Description of drawings
Fig. 1 is the square pie graph of voltage regulator running control circuit of the present invention.
Fig. 2 is the square pie graph of one-piece type voltage regulator of the present invention and tuner.
Fig. 3 is the flow chart of booster operation control method of the present invention.
Reference numeral
100: voltage regulator 110: tuner
120: vision signal handling part 130: microcomputer
200: one-piece type tuner and voltage regulator
Embodiment
Below, with reference to accompanying drawing the preferred embodiments of the present invention are specifically described.
At first, as shown in Figure 1, the voltage regulator running control circuit of television receiver of the present invention comprises following part: the signal that receives by antenna (ANT) is amplified, to improve the voltage regulator 100 of sensitivity (electric field strength); From the signal that receives by above-mentioned antenna (ANT), generate the tuner 110 of video intermediate frequency; The video intermediate frequency that processing is exported in above-mentioned tuner 110 is recovered the vision signal handling part 120 of original vision signal; The sensitivity of the vision signal that perception is handled in above-mentioned vision signal handling part 120 is controlled the microcomputer 130 that voltage regulator 100 moves according to standard after differentiating current standard.
In addition, as shown in Figure 2, also can consider above-mentioned voltage regulator 100 is arranged to one with tuner 110, form one-piece type tuner and voltage regulator 200 from the facility in the design.
At this moment, if after the vision signal that is received by antenna (ANT) is input in above-mentioned one tuner and the voltage regulator 200, be imported in the vision signal handling part 120, then in above-mentioned vision signal handling part 120, handle vision signal.At this moment, the operation of one-piece type tuner and voltage regulator 200 is controlled in the sensitivity of the vision signal in the microcomputer 130 perception vision signal handling parts 120 according to standard after differentiating current standard.
The booster operation control method of the television receiver of realizing according to this circuit of above formation at first is meant the booster operation control method of television receiver.
It comprises following step: voltage regulator is moved initialized step (S300); The step (S310) of the intensity (electric field strength) of the initial stage signal that detection television receiver antenna (ANT) is received; Whether the intensity of judging detected initial stage signal is less than the step (S320) of first standard value; If above-mentioned judged result be the intensity of initial stage signal less than first standard value, then open voltage regulator (S330), if surpass, the step (S340) of the current demand signal intensity that received of assay intervals certain hour then; Whether the intensity of judging detected current demand signal is greater than the step (S350) of second standard value; If above-mentioned judged result be the intensity of current demand signal greater than second standard value, then close voltage regulator (S360), if less than, the intensity that then rejudges current demand signal whether less than the step (S370) of first standard value; If above-mentioned judged result is that the intensity of current demand signal is less than below first standard value then the step (S380) of opening voltage regulator.
Be elaborated to having the effect of the present invention and the effect that as above constitute below with reference to Fig. 1 and Fig. 2.
When the high-frequency signal electric field strength of the specific channel that receives by television receiver antenna (ANT) is sensitivity when faint, can amplify faint high-frequency signal by voltage regulator 100, improve the sensitivity of received signal with this.
Operating process from above-mentioned booster operation control method of the present invention, at first, be installed in the words that signal sensitivity that the microcomputer 130 in the television receiver received at antenna (ANT) is just often still opened voltage regulator 100, then can produce voice, image quality is deterioration on the contrary, therefore after the running status of voltage regulator 100 is initialized to closed condition (S300), the initial stage signal strength signal intensity (electric field strength) that detection antenna (ANT) is received (S310).
At this moment, will by microcomputer 130 come perception by antenna (ANT) receive, through the intensity of tuner 110, the initial stage vision signal in vision signal handling part 120, handled.
If detect the intensity of initial stage vision signal, microcomputer 130 is at first represented the electric field strength of initial stage vision signal with current standard, with the intensity settings standard of calculating according to experiment, after promptly first standard value (62dB) compares, if be judged as less than first standard value (62dB), then carry high signal to voltage regulator 100, and unlatching voltage regulator 100 (S320, S330).
If open above-mentioned voltage regulator 100, will amplify the electric field strength of small-signal, to improve the sensitivity of vision signal.
But, the 62dB of set point if the electric field strength that is judged as the initial stage signal is above standard, 130 of microcomputers continue again to the interval certain hour for example the standard of the current demand signal that received by antenna (ANT) at interval of 10msec detect (S340).
If detect the intensity of current demand signal, with current demand signal intensity and the intensity settings standard of calculating according to experiment, after promptly second standard value (64dB) compares, if the intensity of judging current demand signal is greater than second standard value (64dB), then carry low signal to voltage regulator 100, with voltage regulator 100 be operable to closed condition (S350, S360).
But whether less than first standard value (62dB) (S370) above-mentioned microcomputer 130 less than second standard value (64dB), then rejudges current demand signal intensity in the intensity of judging current demand signal.
If above-mentioned judged result be the standard of current demand signal less than first standard value (62dB), 130 of microcomputers are carried high signal to voltage regulator 100 again, and voltage regulator 100 is operable to opening (S380).
But, if the intensity of current demand signal surpasses first standard value (62dB), 130 A-stages that will keep voltage regulator 100 of microcomputer.
Therefore, if receive the high signal of intensity (electric field strength) by antenna (ANT), then microcomputer 130 will be closed voltage regulator 100 by above-mentioned processing procedure, in order to the image quality deterioration that prevents to cause owing to voice.
Simultaneously, though the foregoing description becomes closed condition with the initializing set that voltage regulator moves, also can as required voltage regulator be initialized to opening.
The related work personnel that the technical field of the invention possesses professional knowledge can fully draw such processing procedure by the foregoing description fully.
Claims (5)
1. the booster operation control method of a television receiver may further comprise the steps:
Voltage regulator is moved initialization;
The intensity of the initial stage signal that detection television receiver antenna is received;
Whether the intensity of judging detected initial stage signal is less than first standard value;
If above-mentioned judged result be the intensity of initial stage signal less than first standard value, then open voltage regulator, if surpass first standard value, the current demand signal intensity that receives of assay intervals certain hour then;
Whether the intensity of judging detected current demand signal is greater than second standard value;
If the intensity of above-mentioned judged result position current demand signal is then closed voltage regulator greater than second standard value, and if less than the intensity that would rejudge current demand signal whether less than first standard value;
If above-mentioned judged result be the intensity of current demand signal less than first standard value, then open voltage regulator.
2. as the booster operation control method of claim item 1 described television receiver, it is characterized in that,
Above-mentioned voltage regulator is moved initialized step to be meant voltage regulator is initialized to closed condition.
3. as the booster operation control method of claim item 1 described television receiver, it is characterized in that,
Above-mentioned voltage regulator is moved initialized step to be meant voltage regulator is initialized to opening.
4. the voltage regulator running control circuit of a television receiver comprises following components:
Voltage regulator amplifies the signal that receives by antenna, to improve sensitivity;
Tuner, the tuning signal that receives by above-mentioned antenna; The vision signal handling part is handled the vision signal of exporting from above-mentioned tuner;
Microcomputer, the vision signal sensitivity that perception is handled in above-mentioned vision signal handling part moves according to related standards control voltage regulator after differentiating current standard.
5. as the voltage regulator running control circuit of television receiver as described in the claim item 4, it is characterized in that,
Above-mentioned voltage regulator and tuner are configured to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100963442A CN101150674A (en) | 2006-09-20 | 2006-09-20 | Booster operation control method and its circuit of TV receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100963442A CN101150674A (en) | 2006-09-20 | 2006-09-20 | Booster operation control method and its circuit of TV receiver |
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| Publication Number | Publication Date |
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| CN101150674A true CN101150674A (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100963442A Pending CN101150674A (en) | 2006-09-20 | 2006-09-20 | Booster operation control method and its circuit of TV receiver |
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| CN (1) | CN101150674A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739779B (en) * | 2008-11-21 | 2013-04-17 | 康佳集团股份有限公司 | Method and equipment for indicating digital signal strength |
| CN103220570A (en) * | 2013-05-14 | 2013-07-24 | 无锡北斗星通信息科技有限公司 | Terminal for receiving and playing digital television signal |
-
2006
- 2006-09-20 CN CNA2006100963442A patent/CN101150674A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739779B (en) * | 2008-11-21 | 2013-04-17 | 康佳集团股份有限公司 | Method and equipment for indicating digital signal strength |
| CN103220570A (en) * | 2013-05-14 | 2013-07-24 | 无锡北斗星通信息科技有限公司 | Terminal for receiving and playing digital television signal |
| CN103220570B (en) * | 2013-05-14 | 2016-01-06 | 海安常大技术转移中心有限公司 | The terminal that receiving digital television signal carrying out is play |
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