CN1645906A - Visual frequency signal player and playing method for dynamic adjusting brightness - Google Patents
Visual frequency signal player and playing method for dynamic adjusting brightness Download PDFInfo
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- CN1645906A CN1645906A CNA2005100028135A CN200510002813A CN1645906A CN 1645906 A CN1645906 A CN 1645906A CN A2005100028135 A CNA2005100028135 A CN A2005100028135A CN 200510002813 A CN200510002813 A CN 200510002813A CN 1645906 A CN1645906 A CN 1645906A
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Abstract
The method includes following steps: the brightness regulation unit detects working state of play back unit; if the play back unit stops playing, the display unit will reduce the brightness. Further more, the brightness regulation unit will detect if the read unit, transmit unit and decode unit of play back unit stop working; if one of them stops working, the display unit will reduce brightness.
Description
Technical field:
The present invention system particularly stops about detecting playing device about the video signal playing device and the method for dynamic adjustment brightness, and reduces the device and method of display frame brightness.
Background technology:
Prior art once had several the display brightness that are used for refrigerator and LCD dynamically to adjust, thereby the invention of reaching the power saving purpose discloses.
U.S.'s patent of invention discloses a kind of electricity saver and method that is used for the display part of refrigerator the 6th, 546, No. 741.When the main monitoring of this invention user used refrigerator, the brightness of control refrigerator display part made the brightness of display part only when the user uses this refrigerator, just can keep high brightness.The means feature of reaching this invention is that with working signal, door leaf switch, infrared ray sensor or its similar thing of use side input function key, the decision user is using refrigerator, or near refrigerator.The result who obtains according to above-mentioned means decision will change the back light part running, thereby this invents the brilliance control in display part, can avoid unnecessary electric energy consume, and can be effective adjusting to its power consumption.It is that hardware is implemented completely that but the shortcoming of this invention is regulation mechanism, certainly will grow extra hardware spending, the rising production cost.
U.S.'s patent of invention discloses a kind of the variation according to the intensity of light source for the 6th, 300, No. 931 and changes the device that display shows tone.Therefore, the scattering spectral change of illuminating source causes the dispersion tone reversal, feasible effective compensation.In this invention, illuminating source can be controlled practically, and therefore, LCD see through to adjust is extended contrast and brightness stratum, can be finer operation and reaches to a certain degree battery saving mode.The shortcoming of this case is three looks into the detecting red, green, blue, can produce the demand of more hardware circuits, causes the cost of hardware circuit expensive more.
No. the 5th, 956,014, U.S.'s patent of invention discloses a kind of brilliance control and power control.On plasma display panel, the analoging brightness value by the variable resistor definition changes into the digital brightness value, and is stored in the internal memory.
Brightness in a current cycle, be and be stored in before the internal memory first phase digital brightness value and compare, thereby generation luminance difference, this luminance difference and a predefined value relatively after, if greater than a default value, the digital brightness value that then will be stored in internal memory is upgraded, otherwise, to detect the electrical source consumption of this plasma display panel, when the electrical source consumption of this plasma display panel, during greater than a set point, brightness value can reduce gradually, and power consumption can make brightness value can be adjusted to a brightness settings gradually less than a set point.The shortcoming of this case is and the analoging brightness value of variable resistor definition need be changed into the digital brightness value, and is stored in the internal memory, so need analog-digital converter (ADC).
U.S.'s patent of invention case the 2002nd, 011 8182A1 number, discloses a kind of auto brightness control system and method for using index sensor to be used for display equipment.This index sensor light arround luminescent screen produces indicial response, and a control circuit is arranged, and can select a display brightness from from one or more luminous adjustment sequence.This display brightness be one arround luminescent screen the fractional rating function of light, this power function can define by a constant brighteness ratio displacement.The shortcoming of this case is to need an index sensor, with a hardware control circuit, by this, could be able to select a display brightness from from one or more luminous adjustment sequence, offers the usefulness that display is used to determine display brightness.Therefore, index sensor and hardware control circuit still can produce extra hardware production cost.
At above-mentioned shortcoming, the present invention detects with software purely, and control signal is output in the power supply control of display, thus can significantly reduce hardware cost, and be the most effective utilization.
Summary of the invention:
Main purpose of the present invention is providing the video signal playing device and the method for dynamic adjustment brightness, it can be detected this broadcast unit and whether be stopped action by the brightness adjustment unit, and when this broadcast unit stops to move, the luminosity of this display unit is reduced, reach less electricity consumption.
Another object of the present invention is providing the video signal playing device and the method for dynamic adjustment brightness, it is at the reading unit of this broadcast unit of detecting, whether delivery unit and decoding unit stop action, and when above-mentioned three wherein arbitrary stops to move, impel the luminosity of this display unit to reduce, reach less electricity consumption.
For reaching above-mentioned purpose, the video signal playing device of dynamic adjustment brightness of the present invention and method are by a brightness adjustment unit, whether the detecting broadcast unit stops action, or detect the reading unit of broadcast unit respectively, delivery unit and decoding unit three's wherein arbitrary whether stopping to be moved, and when stopping to move, send signal, the luminosity of display unit is reduced.
Description of drawings:
Fig. 1 is a device block diagram of the present invention.
Fig. 2 is the thin portion block diagram of the present invention's video signal playing device of dynamically adjusting brightness.
Fig. 3 is the video signal player method that the present invention dynamically adjusts brightness.
The figure number explanation:
1 broadcast unit, 10 reading units
12 delivery units, 14 decoding units
2 brightness adjustment units, 20 detecting units
22 power control units, 3 display units
S10 step S20 step
Embodiment:
This paper is following to cooperate appended graphic explanation in detail by specific embodiment, when the purpose that is easier to understand the present invention, technology contents, characteristics and the effect reached thereof.
Fig. 1 is a device block diagram of the present invention.The present invention dynamically adjusts the video signal playing device of brightness, is by broadcast unit 1, and brightness adjustment unit 2 and display unit 3 are formed.
Broadcast unit 1 is after access one data and send out first signal.First signal comprises video signal basically, and in addition, first signal more can comprise sound signal.
Whether brightness adjustment unit 2, detecting broadcast unit 1 are to electrically connect with broadcast unit 1, and when broadcast unit 1 stops to move, send secondary signal still in action.Display unit 3 electrically connects with broadcast unit 1, receives and shows first signal.And display unit 3 receives secondary signal, and the luminosity of display unit 3 is reduced.
By this, can find not upgrade a time spacing that shows this first signal in this display unit 3, reduce the luminosity of this display unit 3, thereby reach purpose of power saving.
Fig. 2 is the thin square frame piece figure of portion of the present invention's video signal playing device of dynamically adjusting brightness.Broadcast unit 1 comprises: reading unit 10 and delivery unit 12.
Reading unit 10, access data is to produce the 3rd signal.Reading unit 10 can be selected from the DVD read/write head, CD read/write head, cable TV (Cable TV) receiving terminal, box on the machine, wherein one of AV receiving terminal and network receiving terminal.
Delivery unit 12 is to receive the 3rd signal, is electric connection with reading unit 10, and sends first signal, and entity can be conveyer line terminal or wireless transmission end.
If add decoding unit 14, then can handle and compress or the signal later of encoding, entity can be and decompresses or coding chip, also can be to decompress or the decoding software program.Decoding can be a kind of action of the data that decompresses, and the action of decompression data can be selected from distortion wherein one of (lossy decompression) and the undistorted decompression (losslessdecompression) that decompress.Decoding also can be a kind of action of removing the data scrambled.The action of releasing data scrambled can be selected from wherein one of a pair of title formula encryption and decryption (DES) and an asymmetric encryption and decryption (RSA).Therefore, broadcast unit 1 more comprises: decoding unit 14, receive the 3rd signal, and after the 3rd signal is deciphered, send the 5th signal in delivery unit 12.
The algorithm of data compression is numerous, is two classes but wherein be used in the rough segmentation of image compress algorithm, and the first kind is exactly undistorted algorithm (lossless image compession), is the algorithm that can not produce any error after a kind of compression decompresses again.Second class is the algorithm that produces error after a kind of compression decompresses again for distortion algorithms (lossy compression) then.The utilization distortion algorithms is done the image compression can obtain good compression ratio, also can take into account good quality.The general undistorted algorithm of being familiar with has the arithmetic coding method, and the general distortion algorithms of being familiar with has JPEG compressed encoding method, MPEG compressed encoding method or the like.
Brightness adjustment unit 2 comprises: detecting unit 20 and power control unit 22.Detecting unit 20, whether detecting broadcast unit 1 stops, and sends the 6th signal, and is electric connection with broadcast unit 1.In present embodiment, be to utilize the software detecting, not busy after warp in a period of time of use side definition, whether do not have renewal painted (rendering), or there not to be the painted full frame ratio that accounts for of renewal, whether decision is moved and is stopped for broadcasting pictures.
Power control unit 22 is electric connection with detecting unit 20, connects the 6th signal, and send secondary signal with the control display brightness, when the 6th signal meant broadcast unit 1 and stops to move, secondary signal can be indicated the minimizing display brightness, and the degree of minimizing also can be defined from use side.。Broadcast unit 1 stops action and lies in the interior no any more new element of spacing between a period of time.Time interval can be brought in from use and be defined.
Fig. 3 is the video signal player method that the present invention dynamically adjusts brightness, carries out step S10 and step S20 in regular turn, comprises:
At first, step S10 provides broadcast unit 1, and whether detecting broadcast unit 1 stops action, is to see through brightness adjustment unit 2 to do.And
Then step S20 provides display unit 3, when broadcast unit 1 stops to move, the luminosity of display unit 3 is reduced.
The above person is preferred embodiment of the present invention only, is not to be used for limiting scope of the invention process.All variation or modifications of doing according to the described shape of the present patent application scope, structure, feature and theory etc. all should be included in the claim of the present invention.
Claims (14)
1, a kind of video signal playing device of dynamic adjustment brightness comprises:
One broadcast unit is after access one data and send out one first signal;
One brightness adjustment unit is detected this broadcast unit and whether is stopped action, is to electrically connect with this broadcast unit, and when this broadcast unit stops to move, sends a secondary signal; And
One display unit electrically connects with this broadcast unit, receives and shows this first signal, and receive this secondary signal, and the luminosity of this display unit is reduced.
2, as the 1st described device of claim, this first signal comprises a video signal.
3, as the 1st described device of claim, this first signal more comprises a sound signal.
4, as the 1st described device of claim, this broadcast unit comprises:
One reading unit, these data of access are to produce one the 3rd signal; And
One delivery unit is to receive the 3rd signal, is electric connection with this reading unit, and sends this first signal.
5, as the 4th described device of claim, this broadcast unit more comprises:
One decoding unit receives the 3rd signal, after the 3rd signal is deciphered, sends one the 5th signal in this delivery unit.
6, as the 5th described device of claim, this decoding can be a kind of action of the data that decompresses.
7, as the 5th described device of claim, this decoding can be a kind of action of removing the data scrambled.
8, as the 6th described device of claim, the action of this decompression data can be selected from a distortion decompress (lossy decompression) and a undistorted decompression (lossless decompression) one of them.
9, as the 7th described device of claim, the action of this releasing data scrambled can be selected from a pair of title formula encryption and decryption (DES) and an asymmetric encryption and decryption (RSA) one of them.
10, as the 1st described device of claim, this reading unit can be selected from a DVD read/write head, a CD read/write head, a cable TV (Cable TV) receiving terminal, box on the machine, an AV receiving terminal and a network receiving terminal one of them.
11, as the 1st described device of claim, this brightness adjustment unit comprises:
Whether one detecting unit is detected this broadcast unit and is stopped, and sends one the 6th signal, and is electric connection with this broadcast unit; And
One power control unit is electric connection with this detecting unit, receives the 6th signal, and sends this secondary signal with the control display brightness, and when the 6th signal meant this broadcast unit and stops to move, this secondary signal can be indicated the minimizing display brightness.
12, as the 1st described device of claim, this broadcast unit stops action and lies in the interior no any more new element of spacing between a period of time.
13, as the 12nd described device of claim, this time interval can be defined by a use side.
14, a kind of video signal player method of dynamic adjustment brightness comprises following steps:
One broadcast unit being provided, detecting this broadcast unit and whether stop action, is to see through a brightness adjustment unit; And
One display unit is provided, when this broadcast unit stops to move, the luminosity of this display unit is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100028135A CN1645906A (en) | 2005-01-25 | 2005-01-25 | Visual frequency signal player and playing method for dynamic adjusting brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100028135A CN1645906A (en) | 2005-01-25 | 2005-01-25 | Visual frequency signal player and playing method for dynamic adjusting brightness |
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| CN1645906A true CN1645906A (en) | 2005-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2005100028135A Pending CN1645906A (en) | 2005-01-25 | 2005-01-25 | Visual frequency signal player and playing method for dynamic adjusting brightness |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485191B (en) * | 2006-07-04 | 2012-12-26 | 三星电子株式会社 | Image compensation apparatus and method |
| CN105141773A (en) * | 2015-09-09 | 2015-12-09 | 小米科技有限责任公司 | Backlight adjusting method and backlight adjusting device |
-
2005
- 2005-01-25 CN CNA2005100028135A patent/CN1645906A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485191B (en) * | 2006-07-04 | 2012-12-26 | 三星电子株式会社 | Image compensation apparatus and method |
| CN105141773A (en) * | 2015-09-09 | 2015-12-09 | 小米科技有限责任公司 | Backlight adjusting method and backlight adjusting device |
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