CN1856083A - Digital data reminder with automatic frequency test and method for regulating fixed frequency value - Google Patents
Digital data reminder with automatic frequency test and method for regulating fixed frequency value Download PDFInfo
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- CN1856083A CN1856083A CN 200510070047 CN200510070047A CN1856083A CN 1856083 A CN1856083 A CN 1856083A CN 200510070047 CN200510070047 CN 200510070047 CN 200510070047 A CN200510070047 A CN 200510070047A CN 1856083 A CN1856083 A CN 1856083A
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Abstract
The invention is concerned with the digital data reminder of testing frequency automatically and the adjustment method of the frequency setting value, the digital data reminder includes: a frequency testing equipment that uses to test the frequency of the alternating signal from an alternating current; a microprocessor that electric connect to the frequency testing equipment, adjust the frequency fixed value of the digital data reminder by the frequency of the alternating current signal. The invention is that uses the frequency testing equipment to test the alternative current frequency automatically, in order to adjust the inner frequency fixed value of the digital data reminder, avoid the puzzle that the user must adjust the frequency fixed value by the manual way, improve the shortage of the existing technology.
Description
Technical field
The present invention relates to a kind of digit data reminder and frequency setting value adjustment method thereof, refers to a kind of digit data reminder and frequency setting value adjustment method thereof that can detect frequency automatically especially.
Background technology
Digit data reminder (document camera) is to have multi-functional device for one, can be with any image, for example photograph, positive negative film, lantern slide even 3D are three-dimensional in kind, see through simple line after, this video conversion is become digitized data.
See also Fig. 1, it is the use schematic diagram of existing digit data reminder.In general, the frequency of AC power 11 can change with the area to some extent along with country variant, for example is to use 60Hz in Taiwan and U.S. area, then uses 50Hz in Europe and area, continent.Therefore, the frequency of general fluorescent lamp 12 is to be 60Hz in Taiwan and U.S. area, then is 50Hz in Europe with the area, continent.Though both difference not too feels out that very fast because of the execution speed of digit data reminder 13, it can sense the variation of the frequency of fluorescent lamp 12 in common people's naked eyes.Therefore, the user is when using digit data reminder 13, must look the frequency of the AC power 11 of using the country, adjust the frequency setting value (50Hz or 60Hz) of digit data reminder 13 with manual mode, to cooperate the frequency of local AC power 11.If the user has forgotten or has not known to adjust the frequency setting value of digit data reminder 13 to cooperate the frequency of local AC power 11 as manual mode how, then scintillation can take place in the image that captured of digit data reminder 13, and then has influence on image quality.
Summary of the invention
The applicant is because the disappearance of prior art through concentrated test and research, proposes the digit data reminder and the frequency setting value adjustment method thereof of automatic detection frequency of the present invention, in order to improve above-mentioned prior art disappearance.
Main purpose of the present invention provides a kind of digit data reminder and frequency setting value adjustment method thereof that can detect frequency automatically, and it can detect the frequency of AC power automatically, to carry out the adjustment of internal frequency set point.
According to above-mentioned purpose, the invention provides a kind of digit data reminder of automatic detection frequency, it comprises: a frequency detecting device, in order to detect frequency from an AC signal of an AC power; And a microprocessor, be electrically connected on this frequency detecting device, in order to adjust a frequency setting value of this digit data reminder in response to the frequency of this AC signal.
Digit data reminder as described, this frequency detecting device are to be an optical coupler or a transformer.
Digit data reminder as described, the frequency of this AC signal are to be 50Hz or 60Hz.
Digit data reminder as described, this frequency setting value are to be 50Hz or 60Hz.
According to above-mentioned purpose, the present invention provides a kind of digit data reminder of automatic detection frequency in addition, it comprises: a frequency detecting device, in order to detect the frequency from an AC signal of an AC power, a frequency setting of using this digit data reminder is worth adjusting in response to the frequency of this AC signal.
Digit data reminder as described, this frequency detecting device are to be an optical coupler or a transformer.
Digit data reminder as described, the frequency of this AC signal are to be 50Hz or 60Hz.
Digit data reminder as described, this frequency setting value are to be 50Hz or 60Hz.
According to above-mentioned purpose, the present invention provides a kind of frequency setting value adjustment method of digit data reminder again, and its step comprises: detect the frequency from an AC signal of an AC power; And the frequency setting value of adjusting this digit data reminder in response to the frequency of this AC signal.
Method as described, the frequency of this AC signal are to be 50Hz or 60Hz.
Method as described, the frequency setting value of this digit data reminder are to be 50Hz or 60Hz.
Effect of the present invention:
In sum, the digit data reminder of automatic detection frequency of the present invention and frequency setting value adjustment method thereof, use a frequency detecting device to detect the frequency of AC power automatically, to carry out the adjustment of digit data reminder internal frequency set point, exempted the user must be voluntarily with the adjust frequency puzzlement of set point of manual mode, effectively improving the disappearance of prior art, is to have industrial value.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1: it is the use schematic diagram of existing digit data reminder.
Fig. 2: it is the organigram of the digit data reminder of one embodiment of the invention.
The explanation of main symbol in the accompanying drawing:
11: AC power 12: fluorescent lamp
13: digit data reminder 21: digit data reminder
211: frequency detecting device 212: microprocessor
Embodiment
Below with reference to the accompanying drawings, the digit data reminder of automatic detection frequency of the present invention and the embodiment of frequency setting value adjustment method thereof are elaborated.
See also Fig. 2, it is the organigram of the digit data reminder of one embodiment of the invention.This digit data reminder 21 comprises a frequency detecting device 211 and a microprocessor 212.When this digit data reminder 21 is connected to an AC power 11, this frequency detecting device 211 can detect the frequency from an AC signal of this AC power 11 automatically, and the frequency of this AC signal is sent to this microprocessor 212, this microprocessor 212 is then adjusted the frequency setting value of these digit data reminder 21 inside in response to the frequency of this AC signal, to cooperate the frequency of this AC signal, so that the image that this digit data reminder 21 is captured presents stable state, and the phenomenon that image glimmers can not take place.
The preferably, this frequency detecting device 211 is to be an optical coupler or a transformer.The frequency of this AC signal is divided into two kinds of 50Hz and 60Hz in general, adjusts the frequency setting value of these digit data reminder 21 inside and this microprocessor 212 is the frequencies of looking this AC signal.That is when the frequency of this AC signal was 50Hz, this microprocessor 212 can be adjusted to 50Hz with the frequency setting value of these digit data reminder 21 inside; And when the frequency of this AC signal was 60Hz, 212 of this microprocessors can be adjusted to the frequency setting value of these digit data reminder 21 inside 60Hz, to cooperate the frequency of this AC signal.
The those of ordinary skill in the art of invention will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (11)
1. digit data reminder that automatically detects frequency is characterized in that comprising:
One frequency detecting device is in order to detect the frequency from an AC signal of an AC power; And
One microprocessor is electrically connected on described frequency detecting device, in order to adjust a frequency setting value of described digit data reminder in response to the frequency of described AC signal.
2. the digit data reminder of automatic detection frequency as claimed in claim 1 is characterized in that described frequency detecting device is to be an optical coupler or a transformer.
3. the digit data reminder of automatic detection frequency as claimed in claim 1, the frequency that it is characterized in that described AC signal are to be 50Hz or 60Hz.
4. the digit data reminder of automatic detection frequency as claimed in claim 1 is characterized in that described frequency setting value is to be 50Hz or 60Hz.
5. digit data reminder that automatically detects frequency is characterized in that comprising:
One frequency detecting device is in order to detect the frequency from an AC signal of an AC power, so that a frequency setting of described digit data reminder is worth adjusting in response to the frequency of described AC signal.
6. the digit data reminder of automatic detection frequency as claimed in claim 5 is characterized in that described frequency detecting device is to be an optical coupler or a transformer.
7. the digit data reminder of automatic detection frequency as claimed in claim 5, the frequency that it is characterized in that described AC signal are to be 50Hz or 60Hz.
8. the digit data reminder of automatic detection frequency as claimed in claim 5 is characterized in that described frequency setting value is to be 50Hz or 60Hz.
9. the frequency setting value adjustment method of a digit data reminder is characterized in that comprising the following step:
Detection is from the frequency of an AC signal of an AC power; And
Adjust the frequency setting value of described digit data reminder in response to the frequency of described AC signal.
10. the frequency setting value adjustment method of digit data reminder as claimed in claim 9, the frequency that it is characterized in that described AC signal is to be 50Hz or 60Hz.
11. the frequency setting value adjustment method of digit data reminder as claimed in claim 9, the frequency setting value that it is characterized in that described digit data reminder are to be 50Hz or 60Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510070047 CN1856083A (en) | 2005-04-29 | 2005-04-29 | Digital data reminder with automatic frequency test and method for regulating fixed frequency value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510070047 CN1856083A (en) | 2005-04-29 | 2005-04-29 | Digital data reminder with automatic frequency test and method for regulating fixed frequency value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1856083A true CN1856083A (en) | 2006-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200510070047 Pending CN1856083A (en) | 2005-04-29 | 2005-04-29 | Digital data reminder with automatic frequency test and method for regulating fixed frequency value |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093193A (en) * | 2017-12-28 | 2018-05-29 | 浙江大华技术股份有限公司 | A kind of video formats switching method and device |
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2005
- 2005-04-29 CN CN 200510070047 patent/CN1856083A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093193A (en) * | 2017-12-28 | 2018-05-29 | 浙江大华技术股份有限公司 | A kind of video formats switching method and device |
| CN108093193B (en) * | 2017-12-28 | 2020-04-03 | 浙江大华技术股份有限公司 | Video format switching method and device |
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