CN100545729C - A kind of control method that is installed in the external camera flash-light on the portable terminal - Google Patents
A kind of control method that is installed in the external camera flash-light on the portable terminal Download PDFInfo
- Publication number
- CN100545729C CN100545729C CNB2005100004427A CN200510000442A CN100545729C CN 100545729 C CN100545729 C CN 100545729C CN B2005100004427 A CNB2005100004427 A CN B2005100004427A CN 200510000442 A CN200510000442 A CN 200510000442A CN 100545729 C CN100545729 C CN 100545729C
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- China
- Prior art keywords
- flashlamp
- external
- portable terminal
- flash
- camera
- 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.)
- Expired - Fee Related
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
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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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
-
- 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)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
Abstract
A kind of control method that is installed in the external camera flashlamp on the portable terminal.Following steps have been comprised: judge whether to adopt the externally positioned type flashlamp; If when adopting above-mentioned externally positioned type flashlamp, it is luminous that the internally-arranged type flashlamp is implemented preparation, and the shooting time that the fluorescent lifetime of externally positioned type flashlamp is synchronized with camera is taken; If when not adopting above-mentioned externally positioned type flashlamp, under the camera basic working modes, take.By the as above step among the present invention, in the portability of not damaging portable terminal computer self, can also adopt other independently externally positioned type flashlamp according to user's needs, to have reached in the effect of guaranteeing photographic images under the sufficient bright state.
Description
Technical field
The present invention relates to the external camera flash-light technology, is a kind of control method that is installed in the external camera flash-light on the portable terminal concretely.
Background technology
Along with the generally use of portable terminal, accelerated to the exploitation of portable terminal with various performances with popularize.Develop into the character message data communication mode that utilizes literal, symbol, numeral, image etc. from the communication mode of the voice level signal that utilizes portable terminal at first, and then develop into other communication mode of multimedia level that in voice level signal and note signal, comprises picture signal at present.
Along with popularizing of color screen liquid crystal display part, promoted other communication mode of multimedia level, and in order to take the picture signal that is used for other communication mode of multimedia level, people develop the portable terminal with camera function, and entered popular state.
When utilization is installed on camera photographed image signal in the aforesaid portable terminal, according to the brightness situation decision shooting state of surrounding enviroment, night or cloudy day because peripheral brightness is lower, employing is sent flashlamp (Flash) device of light.
Therefore, be built-in with flashlamp in mobile communication terminal, for volume that reduces portable terminal to greatest extent and the weight that is increased, built-in flash adopts the LED form.Because the built-in flash of LED form is less because of institute's consumed current, can not produce great influence to the battery capacity of portable terminal, therefore, it is widely used in the camera that is installed on the portable terminal.
But in above-mentioned prior art, the problem that exists is, owing to the brightness of the built-in flash that utilizes LED is comparatively faint, the distance that can take is also shorter, though can provide sufficient light as built-in flash with the general camera Dedicated flash that has possessed xenon (Xe) the gas discharge tube of capacitor and dc high voltage, but can strengthen the apparent size and the electric consumption of terminal thus, therefore all not too suitable.
And, when utilizing the built-in flash pictures taken,, exist the problem that can not produce various illuminating effects owing to can only realize the illumination of certain angle.
Summary of the invention
Consider the problem that as above exists, proposition the objective of the invention is to, a kind of control method that is installed in the external camera flash-light on the portable terminal is provided, that is, inside is equipped with capacitor and dc high voltage the xenon gaseous discharge pipe, and adopt the luminous initial point of the external flashlamp be independent of the portable terminal power supply to be synchronized with the initial point that terminal utilizes the built-in flash of LED mode to take.
For achieving the above object, technical scheme of the present invention is:
A kind of external camera flash-light that is installed on the portable terminal is characterized in that, comprises following component part: optical sensor, and perception is from the light signal of outside input;
Central processing unit is by analyzing described light signal, the required control signal of output running flashlamp; Illuminating part provides light according to described control signal for subject;
Timer determines the luminous initial point and luminous the holding time of described illuminating part according to described control signal.
Described central processing unit only limits to the situation that described light signal is an assigned frequency, the output control signal.
Described central processing unit only limits to the situation that described light signal is the clock signal of specified quantity, the output control signal.
Described central processing unit only limits to the situation that described light signal is the specified width, which width pulse signal, the output control signal.
The present invention also provides:
A kind of control method that is installed in the external camera flash-light on the portable terminal is characterized in that, to being used for the method that external flashlamp on the portable terminal camera carries out Long-distance Control, has comprised following steps: judge whether to adopt external flashlamp; If when adopting described external flashlamp, it is luminous that built-in flash is implemented preparation, described external flashlamp is luminous by the preparation of the described built-in flash of perception, determines synchronous stand-by time and fluorescent lifetime, and the shooting time that the fluorescent lifetime of external flashlamp is synchronized with camera is taken; If when not adopting described external flashlamp, under the camera basic working modes, take.
Portable terminal will be luminous by the preparation of described built-in flash, and relevant shooting starting point and shooting time relevant information are sent on the described external flashlamp.
Described external flashlamp is luminous by the preparation of the described built-in flash of perception, determines synchronous stand-by time and fluorescent lifetime.
Constitute based on the following signal of the luminous optical signals of preparation: based on the specified width, which width pulse signal of pulse width modulation, the perhaps clock signal that constitutes by specified quantity.
Described external flashlamp will determine synchronous stand-by time and fluorescent lifetime according to luminous fluorescent lifetime or the luminous intensity of preparation.
If when adopting external flashlamp, built-in flash will adopt as the preparation light-emitting component, if when not using external flashlamp when taking, the flashlamp function that subject is taken brightness be adjusted in performance.
Useful result of the present invention in the portability of not damaging portable terminal self, can adopt other independently external flashlamp according to user's needs, thereby reach in the effect of guaranteeing photographic images under the sufficient bright state.And if be provided with the special-purpose light emitting diode of flashlamp in the present invention in portable terminal inside, software just can use external flashlamp by revising wherein, thereby has reached the effect that expands range of application.
Description of drawings
Fig. 1 is the external flashlamp operational structures figure that is installed among relevant the present invention on the portable terminal;
Fig. 2 is the block diagram of external flashlamp among relevant the present invention;
Fig. 3 has shown the oscillogram that is installed on the external flashlamp running time on the portable terminal among the present invention;
Fig. 4 is the operation workflow figure that is installed on the external flashlamp on the portable terminal among relevant the present invention.
* accompanying drawing major part symbol description * *
10: portable terminal 20: camera
30: built-in flash 40: external flashlamp
50: optical sensor 60: subject
100: optical sensor 200: central processing unit
300: timer 400: charging part
500: light emitting control portion 600: the xenon pipe
Embodiment
In order to reach above purpose, the invention is characterized in, comprise following component part: optical sensor, perception is from the light signal of outside input; Central processing unit is by analyzing above-mentioned light signal, the required control signal of output running flashlamp; Illuminating part provides light according to above-mentioned control signal for subject; Timer determines the luminous initial point and luminous the holding time of above-mentioned illuminating part according to above-mentioned control signal.
And, in order to realize aforesaid purpose, the invention is characterized in, to being used for the method that external flashlamp on the portable terminal camera carries out Long-distance Control, comprised following steps: judge whether to adopt external flashlamp; If when adopting above-mentioned external flashlamp, it is luminous that built-in flash is implemented preparation, the shooting time that the fluorescent lifetime of external flashlamp is synchronized with camera is taken; If when not adopting above-mentioned external flashlamp, under the camera basic working modes, take.
Below in conjunction with accompanying drawing, the embodiment of the invention is elaborated.
Fig. 1 is the external flashlamp operational structures figure that is installed among relevant the present invention on the portable terminal, as shown in the figure, has comprised following formation: camera 20 is installed on the portable terminal 10, with photographic images; Built-in flash 30 is taken the required light signal of initial point for transmission is synchronized with, and is installed in portable terminal 10 inside; External flashlamp 40, provide when in the low-light level environment, taking not enough light; Optical sensor 50 is installed on the above-mentioned external flashlamp 40, provides to be synchronized with to take the initial point information needed; Subject 60, the object that above-mentioned camera 20 will be taken.
At this moment, external flashlamp 40 will go out based on the luminous light signal of built-in flash 30 preparations by optical sensor 50 perception, and be provided with according to external flashlamp 40, and it is luminous to be synchronized with the actual photographed initial point.Above-mentioned optical sensor 50 will be by the fluorescent lifetime or the luminous intensity of perception built-in flash 30, transmit the initial point information of taking to external flashlamp 40, based on these, external flashlamp 40 will be kept the luminance that is same as camera 20 shooting times that are installed on the portable terminal 10.
If when adopting external flashlamp 40, it is used that built-in flash 30 will carry out synchronous preparation light-emitting component as the fluorescent lifetime that makes external flashlamp 40 and camera 20 shooting times, but, under the camera basic working modes of not using external flashlamp 40 to take, performance is adjusted the required original flashlamp function of shooting brightness of subject 60.
Fig. 2 is the block diagram of external flashlamp among relevant the present invention.As shown in the figure, it has comprised following component part: optical sensor 100, and perception is based on the luminous light signal of built-in flash preparation; Central processing unit (CPU:Central Process Unit) 200 is by analyzing the luminous required various control signals of above-mentioned light signal output flashlamp; Charging part 400 according to the charging control signal of above-mentioned central processing unit 200, stores and provides luminous institute energy requirement; Light emitting control portion 500, according to the led control signal of above-mentioned central processing unit 200, through keeping the luminous certain hour of preparation after, required brightness is luminous by taking; Timer 300 according to the time control signal of above-mentioned central processing unit 200, transmits luminous initial point and time period information to above-mentioned light emitting control portion 500; Xenon pipe 600 within above-mentioned fluorescent lifetime section, consumes the energy in the above-mentioned charging part 400, and is luminous with suitable brightness
Judge by central processing unit 200 whether the light that is perceived by optical sensor 100 is the light that built-in flash sent that is installed in the portable terminal, through judging, if by light that above-mentioned built-in flash sent, to export the required necessary control signal of running flashlamp, otherwise not export control signal.
At this moment, built-in flash will provide preparation luminous by the light signal that is arranged on the assigned frequency in the central processing unit 200, the light that above-mentioned outside other light of central processing unit 200 differentiations and built-in flash are sent.Perhaps, be limited to the clock signal of specified quantity or, prepare luminous based on the specified width, which width pulse signal of pulse-length modulation.
Fig. 3 has shown the oscillogram that is installed on the external flashlamp running time on the portable terminal among the present invention.Show as a among Fig. 3, before the shooting operation of operation camera, make built-in flash when preparation is luminous within the time period of T2, receives, read this information, after the synchronous stand-by time section of T3, move external flashlamp at T2 in succession by external flashlamp at T1.Stand-by time, has exceeded synchronous stand-by time and can move camera, and made external flashlamp luminous at the initial point identical with it after preparation is luminous as the information of notice camera operation starting point synchronously.At this moment, within the time period of T4, make external flashlamp keep luminance at the T3 of camera running in order to adjust the required brightness of shooting.
Wherein, be provided with above-mentioned preparation fluorescent lifetime (T1～T2) or in advance at external flashlamp based on the synchronous stand-by time of the preparation luminous intensity (T2～T3) and the fluorescent lifetime of external flashlamp (T3～T4).
Fig. 4 is the operation workflow figure that is installed on the external flashlamp on the portable terminal among relevant the present invention, as shown in the figure, when terminal is in the camera mode state, has comprised following steps: judge whether to use external flashlamp; If when using above-mentioned external flashlamp, make the built-in flash preparation luminous, take when after waiting certain hour, making external flashlamp luminous again; When not using above-mentioned external flashlamp, adopt basic camera operating mode to take; After finishing shooting, judging whether needs to continue to take, and takes if desired and will repeat above-mentioned steps.
Wherein, for the use of external flashlamp whether, will be when drives camera be arranged on camera flash-light pattern decision in the mobile communication terminal by judgement.At this moment, Flash Mode is divided into external Flash Mode and camera basic working modes, the user can be provided with by the operation mobile communication terminal according to peripheral brightness.
Therefore, when being in the camera basic working modes, can be with built-in flash as flashlamp script function on, and when being in external Flash Mode, original built-in flash is used as the required element of running starting point of synchronous external flashlamp and camera, it is a kind of luminous by the LED that makes built-in flash, to the shooting initial point of external flashlamp prompting camera, in the mode of control running initial point.
Therefore, even if if the mobile communication terminal that has gone on the market when having possessed the built-in flash of LED mode, does not need hardware update, and only need revise the microprocessor software of mobile communication terminal inside, just can use based on external flashlamp of the present invention.
As above detailed description, when utilizing the camera photographic images that is installed on the portable terminal in the present invention, in the portability of not damaging portable terminal self, can adopt other independently external flashlamp according to user's needs, thereby reach in the effect of guaranteeing photographic images under the sufficient bright state.
And if be provided with the special-purpose light emitting diode of flashlamp in the present invention in portable terminal inside, software just can use external flashlamp by revising wherein, thereby has reached the effect that expands range of application.
Concrete example that carries out in the detailed description of the invention described above or embodiment are used for clearly stating more technology contents of the present invention, the narrow definition of this specific embodiment can not be defined in, multiple variation can be in the scope of spirit of the present invention and claims, carried out.
Claims (5)
1. a control method that is installed in the external camera flash-light on the portable terminal is characterized in that, to being used for the method that external flashlamp on the portable terminal computer camera carries out Long-distance Control, has comprised following steps: judge whether to adopt external flashlamp; If when adopting described external flashlamp, it is luminous that built-in flash is implemented preparation, described external flashlamp is luminous by the preparation of the described built-in flash of perception, determines synchronous stand-by time and fluorescent lifetime, and the shooting time that the fluorescent lifetime of external flashlamp is synchronized with camera is taken; If when not adopting described external flashlamp, under the camera basic working modes, take.
2. according to a kind of control method that is installed in the external camera flash-light on the portable terminal described in the claim 1, it is characterized in that, portable terminal computer will be luminous by the preparation of described built-in flash, and relevant shooting starting point and shooting time relevant information are sent to described external flashlamp.
3. according to a kind of control method that is installed in the external camera flash-light on the portable terminal described in the claim 1, it is characterized in that, constitute based on preparing the specified width, which width pulse signal of luminous optical signals based on pulse width modulation, perhaps the clock signal that is made of specified quantity constitutes.
4. according to a kind of control method that is installed in the external camera flash-light on the portable terminal described in the claim 1, it is characterized in that described external flashlamp will determine synchronous stand-by time and fluorescent lifetime according to luminous fluorescent lifetime or the luminous intensity of preparation.
5. according to a kind of control method that is installed in the external camera flash-light on the portable terminal described in the claim 1, it is characterized in that, if when adopting external flashlamp, built-in flash will adopt as the preparation light-emitting component, if when not using external flashlamp when taking, the flashlamp function that subject is taken brightness is adjusted in performance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040039776 | 2004-06-01 | ||
| KR1020040039776A KR100575784B1 (en) | 2004-06-01 | 2004-06-01 | External flash of camera mounted on portable terminal and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1704835A CN1704835A (en) | 2005-12-07 |
| CN100545729C true CN100545729C (en) | 2009-09-30 |
Family
ID=35577054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100004427A Expired - Fee Related CN100545729C (en) | 2004-06-01 | 2005-01-11 | A kind of control method that is installed in the external camera flash-light on the portable terminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100575784B1 (en) |
| CN (1) | CN100545729C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105373208A (en) * | 2015-09-30 | 2016-03-02 | 维沃移动通信有限公司 | Mobile terminal |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8488055B2 (en) * | 2010-09-30 | 2013-07-16 | Apple Inc. | Flash synchronization using image sensor interface timing signal |
| CN103402291A (en) * | 2013-08-05 | 2013-11-20 | 曾金辉 | External flash light, photo taking system and working method of external flash light |
| CN105245769A (en) * | 2014-07-08 | 2016-01-13 | 华晶科技股份有限公司 | Flash control system and method thereof |
| CN105306803A (en) * | 2014-07-31 | 2016-02-03 | 深圳市爵影科技有限公司 | Mobile equipment wireless flash triggering method |
| WO2017133208A1 (en) * | 2016-02-01 | 2017-08-10 | 朱宏静 | Shooting system and xenon flash device |
| CN106101493A (en) * | 2016-04-27 | 2016-11-09 | 朱宏静 | Many fill-flash lamp system and fill-flash control device |
| CN105911798B (en) * | 2016-06-12 | 2018-11-16 | 江苏紫米电子技术有限公司 | A kind of external light-supplementing system and light compensation method |
| WO2020055305A1 (en) * | 2018-09-11 | 2020-03-19 | Profoto Aktiebolag | A computer implemented method and a system for coordinating taking of a picture using a camera and initiation of a flash pulse of at least one flash device |
| CN113412451B (en) | 2019-02-01 | 2023-05-12 | 保富图公司 | Housing for an intermediate signal transmission unit and intermediate signal transmission unit |
| CN110855900B (en) * | 2019-11-20 | 2021-04-20 | 何建军 | Photographing control method and system based on external flash light source and storage medium |
-
2004
- 2004-06-01 KR KR1020040039776A patent/KR100575784B1/en not_active IP Right Cessation
-
2005
- 2005-01-11 CN CNB2005100004427A patent/CN100545729C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105373208A (en) * | 2015-09-30 | 2016-03-02 | 维沃移动通信有限公司 | Mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050114540A (en) | 2005-12-06 |
| KR100575784B1 (en) | 2006-05-03 |
| CN1704835A (en) | 2005-12-07 |
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| 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: 20120309 |
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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: 20120309 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20190111 |