CN1776518A - Built-in flashing derive device of mobile communication terminal - Google Patents
Built-in flashing derive device of mobile communication terminal Download PDFInfo
- Publication number
- CN1776518A CN1776518A CNA2005100722032A CN200510072203A CN1776518A CN 1776518 A CN1776518 A CN 1776518A CN A2005100722032 A CNA2005100722032 A CN A2005100722032A CN 200510072203 A CN200510072203 A CN 200510072203A CN 1776518 A CN1776518 A CN 1776518A
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- China
- Prior art keywords
- flashing
- control part
- built
- mobile communication
- communication terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Optical Communication System (AREA)
- Studio Devices (AREA)
- Telephone Function (AREA)
Abstract
The invention relates to a built-in flashing derive device of mobile communication terminal for adjusting luminous intensity of the luminous element used as a flash so as to remove red-eye effect and shine with high luminance. The invention contains light sensor part, control part, flash power part, switch part and flash element. The light sensor part measures environmental luminance for adjusting intensity of the luminous element and outputs it to the control part; the control part outputs pulse signal and switching signal with specified period in order to control current flowing in the flash element corresponding to the luminance data from the light sensor part; flash power part is connected/disconnected according to the control of the control part, synchronizing with the pulse signal and outputting pulse voltage or a degree of driving voltage; the switching part is connected/disconnected according to the switching signal of the control part, adjusting the current flowing in the flash element so as to adjust flash intensity; the flash element is driven by pulse voltage applied in the flash power part and shines.
Description
Technical field
The present invention relates to the built-in flashing derive device of mobile communication terminal, especially relate to a kind of regulate the light-emitting component (LED) that uses as flash of light thus luminous intensity can eliminate red eye phenomenon and with the built-in flashing derive device of the mobile communication terminal of high brightness luminescent.
Background technology
Usually, the flasher circuit that is applicable to the camera type terminal in the past obviously descends than the flash luminance of ordinary camera flasher circuit, this is because driving the method for flash of light is the simple mode of connection/cut-out under the state that inserts steady current, can not make high-current flow under connection status on flashing component.
Certainly, also with high brightness luminescent, insert high electric current when inserting the above high electric current of the electric current that fixes in the flash driving circuit in the past but certain hour is above, will the physical damage flashing component.
Therefore, for keeping continuous connection status, must insert the electric current of about tens mA, so brightness only can descend in the flash driving circuit in the past.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of built-in flashing derive device of mobile communication terminal, its regulate the light-emitting component (LED) that uses as flash of light thus luminous intensity can eliminate red eye phenomenon and with high brightness luminescent.
For reaching above-mentioned purpose, the built-in flashing derive device of mobile communication terminal of the present invention comprises: optical inductor portion, control part, flashing power source portion, switch portion and flashing component; Optical inductor portion measures brightness on every side and it is outputed to control part for the intensity of regulating flashing component; The corresponding brightness data of from above-mentioned optical inductor portion, importing, control part is exported the pulse signal and the switching signal of specified period for the electric current in the control flashing component; Flashing power source portion is connected/cuts off (on/off) according to the control of above-mentioned control part, and synchronous with above-mentioned pulse signal, the driving voltage of voltage pulse output or certain grade; Switch portion is according to the switching signal connection/cut-out of above-mentioned control part output, thereby the electric current of regulating in the flashing component is regulated the intensity of glistening; Flashing component is driven by the pulse voltage that is linked into above-mentioned flashing power source portion and is luminous.
According to the built-in flashing derive device of portable terminal of the present invention, can utilize the flashing component (light-emitting component) that in the past was applicable to mobile communication terminal to produce high brightness, and suitably regulate the drive current elimination red eye phenomenon of flashing component.
That certain electric current is linked into flashing component was luminous for flash driving circuit in the past, but the present invention is with different in the past, can not produce in the physically impaired short time flashing component and to insert pulse voltage, thus on the flashing component moment flow very large electric current with high brightness luminescent.
Beneficial effect of the present invention is, the built-in flashing derive device of mobile communication terminal of the present invention, be the camera type mobile communication terminal of built-in flash of light, regulate the luminous intensity of the light-emitting component (LED) that uses as flash of light, thereby can eliminate red eye phenomenon and with high brightness luminescent.
Description of drawings
Fig. 1 is the structured flowchart of the built-in flashing derive device of mobile communication terminal of the present invention.
The symbol description of accompanying drawing major part:
101: optical inductor portion 102: control part
103: switch portion 104: flashing component
105: flashing power source portion 106: battery
SW1～SW3: switch R1～R3: resistance
Embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing.
At first it should be noted that for the reference marks that is attached to each figure inscape, even identical textural element is as far as possible also represented with same-sign on other accompanying drawing.
And, in the following describes as many specific detail of concrete treatment scheme for of the present invention more fully understand provide, the commonsense worker of this technical field will know that no this specific detail also can implement the present invention.
In addition, only illustrate in the following explanation and understand the required part of action and effect of the present invention, omit the explanation of other parts for not obscuring main points of the present invention.
Fig. 1 is the structured flowchart of the built-in flashing derive device of mobile communication terminal of the present invention.As shown in the figure, comprise optical inductor portion 101, control part 102, flashing power source portion 105, switch portion 103 and flashing component 104.Optical inductor portion 101 measures brightness on every side for the intensity of regulating flashing component 104 and outputs to control part; Corresponding brightness data from the input of above-mentioned optical inductor portion, the electric current that control part 102 is flowing in flashing component 104 for control is exported the pulse signal and the switching signal of specified period; Flashing power source portion 105 is connected/cuts off (on/off) according to the control of above-mentioned control part 102, and synchronous with above-mentioned pulse signal, the driving voltage of voltage pulse output or certain grade; Switch portion 103 is regulated the intensity of glistening according to the switching signal connection/cut-out of above-mentioned control part 102 outputs thereby regulate the electric current that is flowing in flashing component 104; Flashing component 104 drives with the pulse voltage that is linked into above-mentioned flashing power source portion 105 and is luminous.
At this, above-mentioned flashing component is the identical light-emitting component (LED) that is applicable to mobile communication terminal flash of light in the past, this light-emitting component allows the electric current of maximum 20～50mA in common connection/cut-out action, but as the present invention, allows the immediate current of about 200～300mA when inserting pulse voltage.Certainly, the pulse input cycle at this moment is the following very short times of 10 μ s.
Each switch sw1～sw3 is connected in series on 103 couples of two above current-limiting resistance R1～R3 parallel with one another of above-mentioned switch portion, the side of above-mentioned each resistance R 1～R3 is connected on the flashing component 104 jointly, the opposite side of above-mentioned each switch sw1～sw3 connects ground connection, thereby, regulate the magnitude of current that is flowing in flashing component according to by the switch combination of the switching signal connection/cut-out of above-mentioned control part 102.At this moment, above-mentioned each resistance value can be changed setting value according to user's's (circuit designers) intention.
102 connection/the cut-outs of 105 Be Controlled portions of above-mentioned flashing power source portion, synchronous when being in connection status with the pulse signal of the specified period that is linked into control part, voltage pulse output.If when control part inserted certain " high " state signal, flashing power source portion also can be synchronous with it, produce the output power of keeping certain voltage.
Above-mentioned control part 102 is to the pulse signal of flashing power source portion 105 output connections/cut-out control signals and some cycles, and to each switch output switching signal of switch portion 103, thereby control the immediate current that is flowing in flashing component 104.
Below, describe the action and the effect of the built-in flashing derive device of portable terminal of the present invention in detail.
At first, control part 102 detects surrounding brightness by optical inductor portion 101, when around drive flashing component 104 when dark, at this moment control the intensity of flashing component 104, can according to around automatic brightness adjustment or according to user's setting manual adjustments.
For this reason, control part connects signal to flashing power source portion 105, and output drives the voltage control signal of flashing component.At this moment, above-mentioned voltage control signal can be kept certain grade, also can export the pulse signal of some cycles.That is, insert the control signal controlling and driving voltage turn-on time of above-mentioned flashing power source portion 105, insert the electric current that flows in the time of its voltage and regulate by gauge tap portion 103.
In other words, the built-in flashing derive device of mobile communication terminal was carried out the action of general connection/cut-out in the past, it can only (tens mA) be worked in the range of current that flashing component physics allows, but built-in flashing derive device of the present invention uses pulse drive mode, do not take place in the physically impaired scope of flashing component, insert admissible moment maximum current (hundreds of mA), thereby produce ratio circuit in the past and exceed tens times brightness, therefore can play the effect of torch, and regulate brightness with suitable Control current limit switch, embodied the function of eliminating red eye phenomenon.
As mentioned above, the built-in flashing derive device of mobile communication terminal of the present invention, be the camera type mobile communication terminal of built-in flash of light, regulate the luminous intensity of the light-emitting component (LED) that uses as flash of light, thereby can eliminate red eye phenomenon and with high brightness luminescent.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (8)
1. the built-in flashing derive device of a mobile communication terminal is characterized in that: comprise optical inductor portion, control part, flashing power source portion, switch portion and flashing component; Optical inductor portion measures brightness on every side and it is outputed to control part for the intensity of regulating flashing component; The corresponding brightness data of from described optical inductor portion, importing, control part is exported the pulse signal and the switching signal of specified period for the electric current of control flashing component; Flashing power source portion is connected/cuts off according to the control of described control part, and synchronous with described pulse signal, the driving voltage of voltage pulse output or certain grade; Switch portion is according to the switching signal connection/cut-out of described control part output, thereby the electric current of regulating flashing component is regulated the intensity of glistening; Flashing component drives with the pulse voltage that is linked into described flashing power source portion and is luminous.
2. the built-in flashing derive device of mobile communication terminal according to claim 1, it is characterized in that: described switch portion is to each switch that is connected in series on two above current-limiting resistances parallel with one another, one side of described each resistance is connected on the flashing component jointly, described each switch opposite side connect ground connection, thereby, regulate the magnitude of current that is flowing in flashing component according to by the switch combination of the switching signal connection/cut-out of described control part.
3. the built-in flashing derive device of mobile communication terminal according to claim 2 is characterized in that: described each resistance value can be changed setting value according to user's intention.
4. the built-in flashing derive device of mobile communication terminal according to claim 1, it is characterized in that: the connection/cut-out of Be Controlled portion of described flashing power source portion continues the voltage of pulse voltage or certain grade of output specified period according to the control signal that is linked into control part when being in connection status.
5. the built-in flashing derive device of mobile communication terminal according to claim 1, it is characterized in that: described control part is to the pulse signal with specified period of flashing power source portion output control linkage/shutoff signal and power voltage, and to each switch output connection/cut-out switching signal of switch portion, thereby inserted by described pulse signal in the time of voltage, make the drive current of connection/cut-out combination flow to flashing component according to described switch portion.
6. the built-in flashing derive device of mobile communication terminal according to claim 1, it is characterized in that: the brightness of described flashing component is according to by the detected surrounding brightness of optical inductor portion, can regulate automatically or according to user's setting manual adjustments by control part.
7. the built-in flashing derive device of mobile communication terminal according to claim 1, it is characterized in that: described control part inserts pulse voltage by flashing power source portion to flashing component, inserts the current-controlled switch portion of flowing in the time of its pulse voltage and regulates.
8. the built-in flashing derive device of mobile communication terminal according to claim 7, it is characterized in that: described pulse voltage is adjusted to below the 10 μ s time of high current flow, thereby allows the immediate current of about 200～300mA.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2004-0093237 | 2004-11-15 | ||
| KR1020040093237 | 2004-11-15 | ||
| KR1020040093237A KR100595700B1 (en) | 2004-11-15 | 2004-11-15 | Internal flash drive apparatus for mobile communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1776518A true CN1776518A (en) | 2006-05-24 |
| CN100430818C CN100430818C (en) | 2008-11-05 |
Family
ID=36766111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100722032A Expired - Fee Related CN100430818C (en) | 2004-11-15 | 2005-05-23 | Built-in flashing derive device of mobile communication terminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100595700B1 (en) |
| CN (1) | CN100430818C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498435A (en) * | 2009-05-07 | 2012-06-13 | 诺基亚公司 | Apparatus, methods and computer readable storage mediums |
| CN102724785A (en) * | 2011-03-29 | 2012-10-10 | 鸿富锦精密工业（深圳）有限公司 | Control circuit |
| CN103139367A (en) * | 2011-12-05 | 2013-06-05 | 联想(北京)有限公司 | Control method and communication device |
| CN103491250A (en) * | 2013-09-22 | 2014-01-01 | 惠州Tcl移动通信有限公司 | Mobile terminal and flashlight module drive current setting method thereof |
| CN106211460A (en) * | 2016-07-28 | 2016-12-07 | 惠州Tcl移动通信有限公司 | There is the adjustable flash lamp circuit of brightness and driving method, mobile terminal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140049858A (en) * | 2012-10-18 | 2014-04-28 | 서울반도체 주식회사 | Light emitting device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970006908B1 (en) * | 1992-10-23 | 1997-04-30 | 삼성항공산업 주식회사 | Device and method to give an alarm of lack of the intensity of radiation of camera flash |
| KR970006279B1 (en) * | 1993-06-11 | 1997-04-25 | 삼성항공산업 주식회사 | Camera having a short auto-focusing zone and control method of the same |
| JP2003289473A (en) * | 2002-03-28 | 2003-10-10 | Toshiba Corp | Mobile terminal equipment |
| JP2004138890A (en) * | 2002-10-18 | 2004-05-13 | Konica Minolta Holdings Inc | Mobile electronic equipment |
| KR100503040B1 (en) * | 2002-12-14 | 2005-07-21 | 삼성테크윈 주식회사 | Method for controlling flash apparatus, wherein preliminary flashing is performed one time |
-
2004
- 2004-11-15 KR KR1020040093237A patent/KR100595700B1/en not_active IP Right Cessation
-
2005
- 2005-05-23 CN CNB2005100722032A patent/CN100430818C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498435A (en) * | 2009-05-07 | 2012-06-13 | 诺基亚公司 | Apparatus, methods and computer readable storage mediums |
| CN102724785A (en) * | 2011-03-29 | 2012-10-10 | 鸿富锦精密工业（深圳）有限公司 | Control circuit |
| CN103139367A (en) * | 2011-12-05 | 2013-06-05 | 联想(北京)有限公司 | Control method and communication device |
| CN103139367B (en) * | 2011-12-05 | 2015-06-03 | 联想(北京)有限公司 | Control method and communication device |
| CN103491250A (en) * | 2013-09-22 | 2014-01-01 | 惠州Tcl移动通信有限公司 | Mobile terminal and flashlight module drive current setting method thereof |
| CN103491250B (en) * | 2013-09-22 | 2015-11-25 | 惠州Tcl移动通信有限公司 | The method to set up of mobile terminal and flashlight module drive current thereof |
| CN106211460A (en) * | 2016-07-28 | 2016-12-07 | 惠州Tcl移动通信有限公司 | There is the adjustable flash lamp circuit of brightness and driving method, mobile terminal |
| CN106211460B (en) * | 2016-07-28 | 2018-05-11 | 惠州Tcl移动通信有限公司 | With the adjustable flash lamp circuit of brightness and its driving method, mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100430818C (en) | 2008-11-05 |
| KR20060054622A (en) | 2006-05-23 |
| KR100595700B1 (en) | 2006-07-03 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LANGCHAO LEJIN DIGITAL MOBILE COMMUNICATION CO., L Free format text: FORMER OWNER: LG ELECTRONIC (CHINA) RESEARCH + DEVELOPMENT CENTRE CO., LTD. Effective date: 20120312 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100102 CHAOYANG, BEIJING TO: 264006 YANTAI, SHANDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120312 Address after: 264006 No. 228 Changjiang Road, Yantai Economic Development Zone, Shandong, China Patentee after: Langchao Lejin Digital Mobile Communication Co., Ltd. Address before: Two Beijing 100102 Chaoyang District city in Wangjing Lize Park No. 203 Petrova building block B Patentee before: LG Electronic (China) Research and Development Center Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20180523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |