CN202696754U - Digital vidicon - Google Patents
Digital vidicon Download PDFInfo
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- CN202696754U CN202696754U CN201220026695.7U CN201220026695U CN202696754U CN 202696754 U CN202696754 U CN 202696754U CN 201220026695 U CN201220026695 U CN 201220026695U CN 202696754 U CN202696754 U CN 202696754U
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- brightness value
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- infrared light
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Abstract
The utility model provides a digital vidicon, comprising an image sensor for acquiring a video image signal, a processor which is connected with the image sensor to obtain a brightness value of the video image signal, and a day/night light filter and an infrared light panel which are respectively connected with the processor. When the brightness value is determined to be lower than a first preset brightness value, the processor controls the day/night light filter to be switched to the night mode and controls the infrared light panel to be switched on. When the brightness value is determined to be higher than a second preset brightness value, the processor controls the day/night light filter to be switched to the day mode and controls the infrared light panel to be switched off. The first preset brightness value is smaller than the second preset brightness value. According to the utility model, the current value of a digital video image signal is compared with the first preset brightness value and the second preset brightness value, so as to determine the switching of the day/night light filter and the switching of the infrared light panel, achieving high precision and preventing the vibration of the infrared light panel.
Description
Technical field
The utility model relates to the image capture device technical field, particularly a kind of digital camera.
Background technology
When carrying out IMAQ by video camera, owing to gather the difference of the illumination condition of environment, usually need to night (during insufficient light) day and night filter switch to night mode, in the daytime when bright and clear () day and night filter switch to day inter mode to improve the quality of the image that gathers.
At present, usually adopt the control mode of analog signal or digital signal for the switching of filter day and night, traditional analog video camera adopts photo resistance to realize the day and night switching of the day and night filter of rig camera usually.Although this kind mode has the advantages that to the control of the day and night filter of analog video camera realization is simple, cost is low, its control precision is low, and can't realize long-range control.Therefore, in order to improve control precision, especially gather the field of clear picture at ask for something, as monitor in the field, this just need to gather with the relatively high image capture device of some control precisions, such as digital video camera, but, because the Digital Image Processing meeting is done different processing modes to the image of day and night, when adopting outside photo resistance, can't realize synchronously.If when adopting common mode to go to control the switch of outside infrared light board, can open owing to infrared light board, the light grow, the processor of digital camera detected strong light intensity, thereby close infrared lamp, cause thus the back and forth switching (opening and closing are frequent) of infrared light board oscillatory occurences to occur, and shortened the useful life of infrared light board.
The utility model content
The purpose of this utility model is intended to solve at least one of above-mentioned technological deficiency.
For this reason, the purpose of this utility model is to propose a kind of digital camera, and this digital camera has the open and close controlling of the switching of filter day and night and infrared light board advantage accurately, has high accuracy, and effectively avoids the oscillatory occurences of infrared light board to occur.
For achieving the above object, the utility model proposes a kind of digital camera, comprising: imageing sensor, described imageing sensor gathers video signal; Processor, described processor and described imageing sensor link to each other to obtain the brightness value of described video signal; And the day and night filter and the infrared light board that link to each other with described processor respectively, described processor described day and night filter of control when judging that described brightness value is lower than the first predetermined brightness value switches to night mode and the control infrared light board is opened, the described day and night filter of control switches to day inter mode and controls infrared light board and close when judging that described brightness value is higher than the second predetermined brightness value, and described the first predetermined brightness value is less than described the second predetermined brightness value.
According to digital camera of the present utility model, by with the currency of digitized video image signal and the comparison of the first predetermined brightness value and the second predetermined brightness value, as the day and night switching condition of filter and the switching condition of infrared light board, by digital processing mode, have high control accuracy and can effectively avoid the oscillatory occurences of infrared light board to occur.
In addition, can also have following additional technical characterictic according to the above-mentioned digital camera of the utility model:
Described imageing sensor is cmos sensor or ccd sensor.
Described digital camera also comprises: with the counter that described processor links to each other, the described processor of described counter records obtains the number of times of the brightness value of described video signal.
Described digital camera also comprises: the timer that links to each other with described processor, described timer is controlled at described processor and is begun timing when described infrared light board is opened, and described processor obtains the current brightness value of described video signal again behind delay scheduled time.
Described the second predetermined brightness value is described the first predetermined brightness value and described current brightness value sum.
Described the first predetermined brightness value is determined by empirical value.
Described digital camera also comprises: drive unit, described drive unit are arranged on described processor and describedly day and night switch to drive described day and night filter between the filter.
Described digital camera also comprises: be arranged on the switch between described processor and the described infrared light board.
Described switch is mosfet transistor.
Described infrared light board comprises many groups infrarede emitting diode in parallel, comprises the infrarede emitting diode of a plurality of series connection in each group.
The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or the additional aspect of the utility model and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the structure chart of the digital camera of the utility model embodiment; And
Fig. 2 is the processing procedure schematic diagram of the control of the day and night filter of the utility model embodiment digital camera and infrared light board.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Disclosing hereinafter provides many different embodiment or example to be used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter parts and the setting of specific examples are described.Certainly, they only are example, and purpose does not lie in restriction the utility model.In addition, the utility model can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and purpose clearly, itself not indicate the relation between the various embodiment that discuss of institute and/or the setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skills can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the present utility model, need to prove, unless otherwise prescribed and limit, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly to link to each other, and also can indirectly link to each other by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to following description and accompanying drawing, with these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some particular implementation among the embodiment of the present utility model, represent to implement some modes of the principle of embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises spirit and interior all changes, modification and the equivalent of intension scope that falls into additional claims.
The digital camera of the utility model embodiment is described below in conjunction with accompanying drawing 1-2.
With reference to figure 1, according to the digital camera of the utility model embodiment, comprise imageing sensor 110, processor 120 and the day and night filter 130 that links to each other with processor 120 respectively and infrared light board 140.Wherein:
Imageing sensor 110 gathers video signal.Imageing sensor 110 sends to processor 120 after the video signal that collects is converted to digital signal (digital video image signal).In examples more of the present utility model, for example imageing sensor 110 is cmos sensor or ccd sensor.
Processor 120 and imageing sensor 110 link to each other to obtain the brightness value of video signal.Namely to processor 120 in video signal being done Video processing, compression coding process, can directly extract the brightness value (monochrome information) of video signal.
Processor 120 is controlled day and night when judging that brightness value is lower than the first predetermined brightness value, and filter 130 switches to night mode and 140 unlatchings of control infrared light board, control when judging that brightness value is higher than the second predetermined brightness value day and night that filter 130 switches to day inter mode and control infrared light board 140 is closed, wherein the first predetermined brightness value is less than the second predetermined brightness value.In an example of the present utility model, the first predetermined brightness value is determined by empirical value, for example can be with the threshold value (first predetermined brightness value) of 10LUX as day and night conversion, can think during less than 10LUX when brightness value to be night, open infrared light board 140 and day and night filter 130 switch to Night.In this embodiment, the second predetermined brightness value is the first predetermined brightness value and current brightness value sum, namely when the brightness value that next time obtains is higher than the first predetermined brightness value (10LUX) and current brightness value sum, close infrared light board 140 and day and night filter 130 switch to a day inter mode.
According to digital camera of the present utility model, by with the currency of digitized video image signal and the comparison of the first predetermined brightness value and the second predetermined brightness value, as the day and night switching condition of filter and the switching condition of infrared light board, by digital processing mode, have high control accuracy and can effectively avoid the oscillatory occurences of infrared light board to occur.
In an example of the present utility model, digital camera comprises the counter (not shown) that links to each other with processor 120, and counter records processor 120 obtains the number of times of the brightness value of video signal.Like this, can obtain the brightness value of pre-determined number, that is to say, through the repeated detection brightness value, when each time brightness value all less than 10 the time, the representative digit video camera is in state at night (insufficient light), at this moment, need the infrared light board 140 of this digital camera is opened, and the day and night filter 130 of camera is switched to night mode.Thus, by the repeatedly judgement of brightness value, can further improve the precision of detection, avoid erroneous judgement, namely further avoid the judgement of digital camera current state of living in is made mistakes.
Further, digital camera comprises the timer (not shown) that links to each other with processor 120, timer begins timing when processor 120 control infrared light boards 140 are opened, and again obtains the current brightness value of video signal at delay scheduled time preprocessor 120.After infrared lamp plate 140 is opened, the light intensity of environment can be greater than the first predetermined brightness value (10LUX), therefore, for avoiding the back and forth vibration of infrared light board 140, the condition that the state on daytime is returned in its setting needs greater than 10LUX, and because the different infrared light board 140 of digital camera chance collocation, the brightness value behind the unlatching infrared light board 140 might not be identical, needs dynamically to arrange the condition value that returns the state on daytime.The mode that this programme is taked is as follows:
After opening infrared light board 140, processor 120 is delayed time 2 seconds (scheduled times), repeatedly obtains the brightness value of video signal again, calculates the average intensity intensity level when infrared light board 140 light filling is arranged, and add certain allowance, switch back the condition on daytime as equipment.In this embodiment, allowance is the first predetermined brightness value (10LUX) described in above-described embodiment.
Need to prove that the size of the scheduled time and the processing speed of processor 120 and repeatedly to obtain the number of times of brightness value of video signal relevant can specifically be set as the case may be.
In conjunction with Fig. 1, embodiment of the present utility model also comprises drive unit 150, and drive unit 150 is arranged on processor 120 and day and night filter 130 switches to drive day and night between the filter 130.As a concrete example, day and night switch filter 130 and adopt the micro motor chip to drive, its forward and reverse driving signal comes from 2 IO pins of processor 120.The default conditions of IO pin are low, but when needing that day and night filter 130 states change, drive corresponding pin for high, and the duration can be made as 50mS, and in this embodiment, for example can to adopt model be the motor chip of L9110S to the motor chip.
In conjunction with Fig. 1, embodiment of the present utility model comprises the switch 160 that is arranged between processor 120 and the infrared light board 140 again.Further, switch 160 is mosfet transistor, and in this embodiment, infrared light board 140 comprises many groups infrarede emitting diode in parallel, comprises the infrarede emitting diode of a plurality of series connection in each group.Particularly, a plurality of infrarede emitting diodes are connected, and adopt parallel way between group, and its positive pole connects the 12V power supply, and negative pole is via mosfet transistor and ground conducting.Its conducting control signal is produced by the IO pin of processor 120, and namely this IO pin links to each other with the base stage of mosfet transistor, as IO when being high, and the MOSFET conducting, infrarede emitting diode is lighted.
The principle to infrared light board 140 and the day and night control of filter below in conjunction with the digital camera of accompanying drawing 2 the utility model embodiment is described in detail.
With reference to figure 2, the digital camera initialization is finished, when switching to night mode from day mode, only need to set fixing light intensity intensity as switching condition, as when light intensity during less than 10LUX, just switch to night mode, but after switching to night mode, because the existence of infrared light board 140, light can be strengthened, and for avoiding the day and night reciprocal switching between pattern, need to do special calculating to the condition of switching back daytime, for example, when switching to night mode, switch day and night filter 130, open infrared light board 140, delay time and read stable intensity signal after 2 seconds, and do multiple averaging.This average is added 10 as the condition of switching daytime.When image intensity information adds 10 greater than this average, switch to day mode, switch day and night filter 130 and be day mode, close infrared light board 140.
Embodiment of the present utility model has high accuracy and avoids the oscillatory occurences of infrared light board.
In addition, all be known for a person skilled in the art according to other formation and the operation of the digital camera of the utility model above-described embodiment, do not do description herein.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, a plurality of steps or method can realize with being stored in the memory and by software or firmware that suitable instruction execution system is carried out.For example, if realize with hardware, the same in another embodiment, can realize with the combination of each or they in the following technology well known in the art: have for the discrete logic of data-signal being realized the logic gates of logic function, application-specific integrated circuit (ASIC) with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that and realize that all or part of step that above-described embodiment method is carried is to come the relevant hardware of instruction to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises step of embodiment of the method one or a combination set of when carrying out.
In addition, each functional unit in each embodiment of the utility model can be integrated in the processing module, also can be that the independent physics of unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment that scope of the present utility model is by claims and be equal to and limit.
Claims (8)
1. a digital camera is characterized in that, comprising:
Imageing sensor, described imageing sensor gathers video signal;
Processor, described processor and described imageing sensor link to each other to obtain the brightness value of described video signal; And
The day and night filter and the infrared light board that link to each other with described processor respectively, described processor described day and night filter of control when judging that described brightness value is lower than the first predetermined brightness value switches to night mode and the control infrared light board is opened, the described day and night filter of control switches to day inter mode and controls infrared light board and close when judging that described brightness value is higher than the second predetermined brightness value, and described the first predetermined brightness value is less than described the second predetermined brightness value.
2. digital camera according to claim 1 is characterized in that, described imageing sensor is cmos sensor or ccd sensor.
3. digital camera according to claim 1 is characterized in that, also comprises:
With the counter that described processor links to each other, the described processor of described counter records obtains the number of times of the brightness value of described video signal.
4. digital camera according to claim 1 is characterized in that, also comprises:
With the timer that described processor links to each other, described timer is controlled at described processor and is begun timing when described infrared light board is opened, and described processor obtains the current brightness value of described video signal again behind delay scheduled time.
5. digital camera according to claim 1 is characterized in that, also comprises:
Drive unit, described drive unit are arranged on described processor and describedly day and night switch to drive described day and night filter between the filter.
6. digital camera according to claim 1 is characterized in that, also comprises: be arranged on the switch between described processor and the described infrared light board.
7. digital camera according to claim 6 is characterized in that, described switch is mosfet transistor.
8. each described digital camera is characterized in that according to claim 1-7, and described infrared light board comprises many groups infrarede emitting diode in parallel, comprises the infrarede emitting diode of a plurality of series connection in each group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220026695.7U CN202696754U (en) | 2012-01-19 | 2012-01-19 | Digital vidicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220026695.7U CN202696754U (en) | 2012-01-19 | 2012-01-19 | Digital vidicon |
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| CN202696754U true CN202696754U (en) | 2013-01-23 |
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| CN201220026695.7U Expired - Lifetime CN202696754U (en) | 2012-01-19 | 2012-01-19 | Digital vidicon |
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Cited By (16)
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| CN103533252A (en) * | 2013-09-30 | 2014-01-22 | 浙江宇视科技有限公司 | Method and device for automatically switching day and night modes |
| CN103781261A (en) * | 2014-02-28 | 2014-05-07 | 深圳英飞拓科技股份有限公司 | Infrared lamp control method for infrared network camera |
| CN104184962A (en) * | 2014-08-12 | 2014-12-03 | 中国科学院上海微系统与信息技术研究所 | DSP (digital signal processor) and image processing based all-weather image acquisition system |
| CN104580896A (en) * | 2014-12-25 | 2015-04-29 | 深圳市锐明视讯技术有限公司 | Method and device for switching day and night modes of camera |
| WO2015149711A1 (en) * | 2014-04-03 | 2015-10-08 | 华为技术有限公司 | Infrared control device and method, and camera |
| CN105549623A (en) * | 2013-09-10 | 2016-05-04 | 樊棠怀 | Work method of compound eye imitating perception imaging information acquisition system |
| CN107370955A (en) * | 2017-08-21 | 2017-11-21 | 深圳市天视通电子科技有限公司 | Can be automatically switched web camera, implementation method and the monitoring system of diurnal pattern |
| CN107483811A (en) * | 2017-07-28 | 2017-12-15 | 广东欧珀移动通信有限公司 | Imaging method and electronic installation |
| CN107566746A (en) * | 2017-09-12 | 2018-01-09 | 广东小天才科技有限公司 | A kind of photographic method and user terminal |
| CN107635099A (en) * | 2017-10-09 | 2018-01-26 | 深圳市天视通电子科技有限公司 | A kind of double optical-fiber network video cameras of human body sensing and safety defense monitoring system |
| CN107911581A (en) * | 2017-11-15 | 2018-04-13 | 深圳市共进电子股份有限公司 | The infrared switching method of web camera, device, storage medium and web camera |
| CN108933900A (en) * | 2018-09-04 | 2018-12-04 | 深圳市威特迪科技有限公司 | A kind of video camera light filling control circuit and its control method |
| CN109495685A (en) * | 2018-12-07 | 2019-03-19 | 杭州登虹科技有限公司 | A kind of video camera day and night method for handover control, device and storage medium |
| CN109729256A (en) * | 2017-10-31 | 2019-05-07 | 比亚迪股份有限公司 | The control method and device of double photographic devices in vehicle |
| CN111246076A (en) * | 2018-11-29 | 2020-06-05 | 广州佳可电子科技有限公司 | Method for switching image day view and night view of network camera |
| CN111654692A (en) * | 2020-06-15 | 2020-09-11 | 浙江水晶光电科技股份有限公司 | Camera detection method and device, camera and storage medium |
-
2012
- 2012-01-19 CN CN201220026695.7U patent/CN202696754U/en not_active Expired - Lifetime
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| CN105549623B (en) * | 2013-09-10 | 2017-12-15 | 南昌工程学院 | A kind of imitative compound eye perceives as the method for work as information acquisition system |
| CN105549623A (en) * | 2013-09-10 | 2016-05-04 | 樊棠怀 | Work method of compound eye imitating perception imaging information acquisition system |
| CN103533252A (en) * | 2013-09-30 | 2014-01-22 | 浙江宇视科技有限公司 | Method and device for automatically switching day and night modes |
| CN103533252B (en) * | 2013-09-30 | 2017-02-22 | 浙江宇视科技有限公司 | Method and device for automatically switching day and night modes |
| CN103781261A (en) * | 2014-02-28 | 2014-05-07 | 深圳英飞拓科技股份有限公司 | Infrared lamp control method for infrared network camera |
| CN103781261B (en) * | 2014-02-28 | 2015-12-09 | 深圳英飞拓科技股份有限公司 | The infrared lamp control method of infrared network video camera |
| WO2015149711A1 (en) * | 2014-04-03 | 2015-10-08 | 华为技术有限公司 | Infrared control device and method, and camera |
| CN104184962A (en) * | 2014-08-12 | 2014-12-03 | 中国科学院上海微系统与信息技术研究所 | DSP (digital signal processor) and image processing based all-weather image acquisition system |
| CN104580896A (en) * | 2014-12-25 | 2015-04-29 | 深圳市锐明视讯技术有限公司 | Method and device for switching day and night modes of camera |
| CN104580896B (en) * | 2014-12-25 | 2018-06-22 | 深圳市锐明技术股份有限公司 | A kind of video camera diurnal pattern switching method and apparatus |
| CN107483811A (en) * | 2017-07-28 | 2017-12-15 | 广东欧珀移动通信有限公司 | Imaging method and electronic installation |
| CN107370955A (en) * | 2017-08-21 | 2017-11-21 | 深圳市天视通电子科技有限公司 | Can be automatically switched web camera, implementation method and the monitoring system of diurnal pattern |
| CN107566746A (en) * | 2017-09-12 | 2018-01-09 | 广东小天才科技有限公司 | A kind of photographic method and user terminal |
| CN107566746B (en) * | 2017-09-12 | 2020-09-04 | 广东小天才科技有限公司 | Photographing method and user terminal |
| CN107635099A (en) * | 2017-10-09 | 2018-01-26 | 深圳市天视通电子科技有限公司 | A kind of double optical-fiber network video cameras of human body sensing and safety defense monitoring system |
| CN107635099B (en) * | 2017-10-09 | 2020-08-18 | 深圳市天视通电子科技有限公司 | Human body induction double-optical network camera and security monitoring system |
| CN109729256A (en) * | 2017-10-31 | 2019-05-07 | 比亚迪股份有限公司 | The control method and device of double photographic devices in vehicle |
| CN109729256B (en) * | 2017-10-31 | 2020-10-23 | 比亚迪股份有限公司 | Control method and device for double camera devices in vehicle |
| CN107911581A (en) * | 2017-11-15 | 2018-04-13 | 深圳市共进电子股份有限公司 | The infrared switching method of web camera, device, storage medium and web camera |
| CN108933900A (en) * | 2018-09-04 | 2018-12-04 | 深圳市威特迪科技有限公司 | A kind of video camera light filling control circuit and its control method |
| CN111246076A (en) * | 2018-11-29 | 2020-06-05 | 广州佳可电子科技有限公司 | Method for switching image day view and night view of network camera |
| CN109495685A (en) * | 2018-12-07 | 2019-03-19 | 杭州登虹科技有限公司 | A kind of video camera day and night method for handover control, device and storage medium |
| CN111654692A (en) * | 2020-06-15 | 2020-09-11 | 浙江水晶光电科技股份有限公司 | Camera detection method and device, camera and storage medium |
| CN111654692B (en) * | 2020-06-15 | 2022-03-29 | 浙江水晶光电科技股份有限公司 | Camera detection method and device, camera and storage medium |
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Effective date of registration: 20191126 Address after: Room A106, floor 1, building 1, No. 12, Shangdi Information Road, Haidian District, Beijing 100085 Patentee after: Beijing Anxin Weiye Technology Co., Ltd. Address before: 100085, No. 1, building 1, international pioneer park, seven street, Beijing, Haidian District, 1603 Patentee before: Xunchi (Beijing) Video Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |