CN1731826A - Wireless webcam - Google Patents
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- CN1731826A CN1731826A CN 200510088916 CN200510088916A CN1731826A CN 1731826 A CN1731826 A CN 1731826A CN 200510088916 CN200510088916 CN 200510088916 CN 200510088916 A CN200510088916 A CN 200510088916A CN 1731826 A CN1731826 A CN 1731826A
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Abstract
The invention relates to a wireless webcam, comprising emission end arranged at one side of the position for a wireless signal emission of the video and audio signal after processing the image and voice signal through capturing the image to be monitor by an image sensor; a receiving end for receiving the signal from the emission end and transmitting to the TV and/or PC for a video and audio signal display/output. The wireless webcam conquer the defect that the webcam and the image display terminal must be connected by a connecting line so as to realize that one receiving terminal can receive several video and audio signals from several emission ends.
Description
Technical field
The present invention relates to a kind of camera, particularly relate to a kind of wireless camera, comprise signal transmitting terminal and signal receiving end.
Background technology
Along with continuous progress in science and technology, camera is more and more universal in the application in each field, yet the camera of prior art all is directly to use USB (the following USB that all is called) line to be connected on computer (the following PC that all is called) machine.There are problems in the camera that connects with above-mentioned annexation in structure and use, at first, must there be connecting line to connect between above-mentioned prior camera and the graphic display terminal, therefore carrying out the equipment connection, when especially camera and display terminal have certain distance, carry out above-mentioned equipment and just connect very inconvenience; Secondly, existing display terminal is one of PC display or monitor; Have, display terminal can only monitor the image from a camera in the prior art again.
This shows that above-mentioned prior camera obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that camera exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned prior camera exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of wireless camera of new structure, can improve general prior camera, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that prior camera exists, and provide a kind of wireless camera of new structure, technical problem to be solved is to make it realize the wireless image transmission by signal emission tuner and signal receiving demodulation device, carry out the inconvenience that both circuits are connected when having avoided camera certain distance to be arranged with graphic display terminal, and can monitor a plurality of cameras by a graphic display terminal, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of wireless camera that the present invention proposes, it comprises: transmitting terminal, be arranged on a side of the position that needs monitoring, and this transmitting terminal comprises: imageing sensor (sensor), sensing external image also are converted into image signal encoding output; Video processing module is connected with above-mentioned imageing sensor, and the image signal encoding that this imageing sensor sends is converted into selectively the analog video signal of NTSC or two kinds of standards of PAL; Audio input device receives the simulated audio signal that microphone or circuit (Line in) are imported, and this simulated audio signal is amplified; And signal emission tuner, be connected with above-mentioned video processing module and above-mentioned audio input device, and receive the vision signal of above-mentioned video processing module output and the audio signal of above-mentioned audio input device output, above-mentioned vision signal and audio signal that it will receive are carried out wireless signal transmission with certain frequency; And receiving terminal, this receiving terminal comprises: signal receiving module, receive audio frequency and the vision signal that above-mentioned signal emission tuner is launched with the frequency identical with the tranmitting frequency of above-mentioned signal emission tuner, and two kinds of signals are exported respectively, wherein, be provided with in this signal receiving module and can launch on the frequency of tuner transmitting audio frequency and vision signal, receive the signal receiving demodulation device of the signal of being launched at signal; Audio signal interface and video signal interface, be located at respectively on the audio signal output end and VT of above-mentioned signal receiving demodulation device, and between this audio signal interface and video signal interface and the television set is to be connected by audio frequency and video connecting line, thereby makes the audio frequency that signal receiving module exports and the analog signal of video show in television set/export; Video signal decoder is connected with above-mentioned video signal interface, and analog video signal is converted to digital video signal; And video and audio processing modules, be connected with above-mentioned video signal decoder and audio signal interface, receive the data of digital video signal of above-mentioned video signal decoder output and the simulated audio signal of audio signal connecting portion output, and be provided with the data of digital video signal and simulated audio signal are converted to the encoder that is connected to the digital signal that PC can show by the USB line on PC.
The object of the invention to solve the technical problems also adopts following technical measures further to realize.
Aforesaid wireless camera, wherein said video signal decoder are the digital video signals that analog video signal is converted to 4: 2: 2 forms of ITU 656YUV (be the CCIR656 form, below all be called the CCIR656 form) of standard.
Aforesaid wireless camera, wherein said video processing module have the video frequency processing chip that the picture signal of input can be converted to vision signal output.
Aforesaid wireless camera, wherein said video frequency processing chip are VC0701 type telephotography head (TV camera) chips of Co., Ltd of Z-Star Microelectronics.
Aforesaid wireless camera, wherein said signal emission tuner is made as and is connected with more than one audio input device and realizes the structure of stereophonic effect, and this signal emission tuner reception and handle the audio signal that more than one audio input device is imported.
Aforesaid wireless camera, wherein said signal emission tuner is to be made as the structure that input signal is launched with the tranmitting frequency that fixedly installs.
Aforesaid wireless camera, wherein said signal emission tuner is to be made as the structure of input signal being selected tranmitting frequency emission in the transmit frequency range that is provided with.
Aforesaid wireless camera, wherein said signal receiving module are to be made as the structure of selecting a frequency to receive in the transmit frequency range of signal emission tuner.
Aforesaid wireless camera is provided with user's configuration register in wherein said signal emission tuner and the signal receiving demodulation device.
Aforesaid wireless camera, wherein said video and audio processing modules are provided with the clock signal of system frequency of 27MHz.
It is wherein arbitrary that aforesaid wireless camera, wherein said video and audio processing modules inside are integrated with microprocessor, read-only memory digital signal processing module, random access memory digital signal processing module at least.
Aforesaid wireless camera, wherein said audio input device use LM358 type integrated circuit that the simulated audio signal of microphone or circuit (Line in) input is amplified.
Aforesaid wireless camera, wherein said video signal decoder is to use the SAA7113H type decoding chip that adopts the 24.576MHz standard time clock that analog video signal is converted to the digital video signal of CCIR656 form, and is 27MHz output with the output speed with this digital video signal.
Aforesaid wireless camera, the encoder of wherein said video and audio processing modules are that the digital video signal of CCIR656 form is encoded, and simultaneously simulated audio signal are converted to the integrated circuit modules of digital audio and video signals.。
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the display terminal of wireless camera of the present invention can be a PC 8, also can be connected to television set 9 simultaneously, its transmitting terminal and receiving terminal can be one to one, can be many-to-one reception or send mode also, that is to say that a receiving terminal can receive the vision signal from several transmitting terminals.The user can browse the realtime graphic from transmitting terminal simultaneously on PC 8 and television set 9, can also set different tranmitting frequencies to different transmitting terminals, select to switch to the tranmitting frequency of wanting the transmitting terminal that receives at receiving terminal then, thereby can receive video image from different images transducer 4.
Via as can be known above-mentioned, the invention relates to a kind of wireless camera, it comprises: a side that is arranged on the position that needs monitoring, catch the image of the position that needs monitoring by image sensor, and will carry out wireless signal transmission through handling the video/audio signal that obtains by transmitting terminal by image and voice signal; And the signal of transmitting terminal emission received processing, then be transferred to the receiving terminal of demonstration/output of carrying out video and audio signal on television set and/or the PC.Wireless camera of the present invention has solved between camera and the graphic display terminal defective that must be connected with connecting line, thereby it is more convenient to use, realized that also a receiving terminal can receive video and the audio signal from several transmitting terminals, and wireless camera of the present invention is simple in structure, and cost is low.
By technique scheme, wireless camera of the present invention can reach suitable technological progress and practicality, and has the extensive value on the industry, and it has following advantage at least:
1, solved between camera and the graphic display terminal defective that must be connected with connecting line, thus more convenient to use;
2, realized that a receiving terminal can receive video and the audio signal from several transmitting terminals;
3, wireless camera of the present invention is simple in structure, and cost is low.
In sum, the wireless camera of special construction of the present invention, realize the wireless image transmission by signal emission tuner and signal receiving demodulation device, carry out the inconvenience that both circuits are connected when having avoided camera certain distance to be arranged, and can monitor a plurality of cameras by a graphic display terminal with graphic display terminal.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and have the multinomial effect of enhancement than prior camera, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the schematic diagram of wireless camera of the present invention.
Fig. 2 is the schematic diagram of the transmitting terminal of wireless camera of the present invention.
Fig. 3 is the schematic diagram of the receiving terminal of wireless camera of the present invention.
F: transmitting terminal J: receiving terminal
1: video processing module 2: signal emission module
3: signal receiving module 31: the vision signal connecting portion
32: audio signal connecting portion 4: imageing sensor
5: audio input device 6: video signal decoder
7: video and audio processing modules 8:PC machine
9: the data of television set S1:CCIR656 form
A1: vision signal B1: audio signal
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of wireless camera, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also shown in Figure 1, it is the schematic diagram of wireless camera of the present invention, it comprises: a side that is arranged on the position that needs monitoring, image and voice signal to the position of need monitoring receive processing, and the signal that will handle carries out the transmitting terminal F of wireless signal transmission, and the signal of transmitting terminal F emission received processing, and the signal that will receive and handle is transferred to the receiving terminal J of demonstration and the output of carrying out video and audio signal on television set and/or the pC machine.
Seeing also shown in Figure 2ly, is the schematic diagram of the transmitting terminal of wireless camera of the present invention, and transmitting terminal F of the present invention comprises: the sensing external image also is converted into the imageing sensor 4 of picture signal output; Be connected with above-mentioned imageing sensor 4, and the picture signal that this imageing sensor 4 sends converted to the video processing module 1 of vision signal A1; The sensing external sound also is converted into the audio input device 5 that audio signal B1 exports; Be connected with above-mentioned video processing module 1 and above-mentioned audio input device 5, and receive the signal emission module 2 of the vision signal A1 and the audio signal B1 that above-mentioned audio input device 5 is exported of above-mentioned video processing module 1 output, above-mentioned vision signal A1 that this signal emission module 2 will receive and audio signal B1 emission.
Wherein, above-mentioned video processing module 1 has the video frequency processing chip that the picture signal of input can be converted to vision signal A1 output, this video frequency processing chip is VC0701 type telephotography head (TV camera) chip that adopts Co., Ltd of Z-Star Microelectronics in the present embodiment, the image signal encoding of input is converted into selectively the analog video signal output of NTSC or two kinds of standards of PAL by this chip; Audio input device 5 receives the simulated audio signal of microphone or circuit (Line in) input, and it includes the LM358 type integrated circuit that this simulated audio signal is amplified; Signal emission module 2 includes and the audio signal that is exaggerated of input and the analog video signal of NTSC or pal mode can be launched tuner with the signal of the tranmitting frequency emission of setting, simultaneously, the user can set the tranmitting frequency of an audio frequency and vision signal in a plurality of different tranmitting frequencies; Signal emission module 2 can receive the audio signal B1 of a plurality of audio input device 5 inputs simultaneously, thereby realizes stereophonic effect.
See also shown in Figure 3, it is the schematic diagram of the receiving terminal of wireless camera of the present invention, receiving terminal J of the present invention comprises: audio frequency that received signal emission tuner is launched and vision signal and the signal receiving module 3 that two kinds of signals are exported respectively, this signal receiving module 3 comprises and can launch on the frequency of tuner transmitting audio frequency and video at signal, receives the signal receiving demodulation device of the signal of being launched; Make audio frequency that signal receiving module 3 exported and video signal transmission to television set 9, thereby image is presented at audio signal connecting portion 32 and vision signal connecting portion 31 on the television set 9, above-mentioned connecting portion comprises audio signal output end and audio signal interface on the VT and the video signal interface that is located at above-mentioned signal receiving demodulation device respectively, and between this audio signal interface and video signal interface and the television set is to be connected by audio frequency and video connecting line, thereby makes the audio frequency that signal receiving module exports and the analog signal of video show in television set/export; Make the vision signal A1 in the above-mentioned vision signal connecting portion 31 be converted to the data S1 of digital video signal and the video signal decoder 6 of output, this video signal decoder 6 is to use the SAA7113H type decoding chip that adopts the 24.576MHz standard time clock that analog video signal is converted to the digital video signal of CCIR656 form in the present embodiment, and is 27MHz output with the output speed with this digital video signal; Receive video and the audio processing modules 7 of the audio signal B1 of the data S1 of CCIR656 form of above-mentioned video signal decoder 6 outputs and 32 outputs of audio signal connecting portion, the output of this video and audio processing modules 7 can be connected with PC by the USB line, and video and the audio signal that receives shown by PC, in the present embodiment, video and audio processing modules use the digital video signal of CCIR656 form are encoded, and simultaneously simulated audio signal are converted to the integrated circuit modules of digital audio and video signals.
Particularly, in the present embodiment, the integrated circuit modules that above-mentioned video and audio processing modules 7 inside are provided with is used for analog video/audio signal is converted to digital video/audio signal is integrated with microprocessor, read-only memory digital signal processing module (ROM) at least, (RAM DSP) is wherein arbitrary for the random access memory digital signal processing module, and support USB2.0 interface, multiple interfaces such as I2C data/address bus.
More specifically, video of the present invention and audio processing modules 7 have the clock signal of system frequency of 27MHz for the data S1 of the CCIR656 form that can handle standard.
In other words, signal receiving demodulation device can select certain frequency to receive, and receive audio frequency and vision signal from same frequency transmitting terminal F emission, it is television set 9 that the display terminal of this audio frequency and vision signal can be selected, also can pass through video signal decoder 6, the connection of video and audio processing modules 7 etc. is shown on the PC 8.That is to say that video signal decoder 6 can be converted into vision signal A1 the data flow of CCIR656 form, video that process is connected with above-mentioned video signal decoder 6 and audio processing modules 7 and USB line pass to PC 8.The user can be by switching to another frequency with the receive frequency of signal receiving demodulation device simply, can be received in the signal that the transmitting terminal F of transmitting audio frequency and vision signal is launched on this another frequency.
Signal emission tuner and signal receiving demodulation device can receive or send with a certain fixed frequency, also can select the mode of one to receive or send signal by multi-frequency.The mode of selecting in the above-mentioned multi-frequency can be selected by the mode that user's configuration register is set in above-mentioned signal emission tuner and signal receiving demodulation device, the signal emission and reception that only are supported on some frequency also can be set, can also adopt the form that adds hardware switch to select to transmit and receive frequency, and, do not repeat them here such as above-mentioned simple combination.
As mentioned above, basic design of the present invention as above.But in technical field of the present invention,, can improve other exercisable embodiment of the present invention as long as possess the most basic knowledge.In the present invention substantive technical scheme has been proposed the patent protection request, its protection range should comprise all variation patterns with above-mentioned technical characterstic.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (14)
1, a kind of wireless camera is characterized in that it comprises:
Transmitting terminal is arranged on a side of the position that needs monitoring, and this transmitting terminal comprises:
Imageing sensor (sensor), the sensing external image also is converted into image signal encoding output;
Video processing module is connected with above-mentioned imageing sensor, and the image signal encoding that this imageing sensor sends is converted into selectively the analog video signal of NTSC or two kinds of standards of PAL;
Audio input device receives the simulated audio signal that microphone or circuit (Line in) are imported, and this simulated audio signal is amplified; And
Signal emission tuner, be connected with above-mentioned video processing module and above-mentioned audio input device, and receive the vision signal of above-mentioned video processing module output and the audio signal of above-mentioned audio input device output, above-mentioned vision signal and audio signal that it will receive are carried out wireless signal transmission with certain frequency; And
Receiving terminal, this receiving terminal comprises:
Signal receiving module, receive audio frequency and the vision signal that above-mentioned signal emission tuner is launched with the frequency identical with the tranmitting frequency of above-mentioned signal emission tuner, and two kinds of signals are exported respectively, wherein, be provided with in this signal receiving module and can launch on the frequency of tuner transmitting audio frequency and vision signal, receive the signal receiving demodulation device of the signal of being launched at signal;
Audio signal interface and video signal interface, be located at respectively on the audio signal output end and VT of above-mentioned signal receiving demodulation device, and between this audio signal interface and video signal interface and the television set is to be connected by audio frequency and video connecting line, thereby makes the audio frequency that signal receiving module exports and the analog signal of video show in television set/export;
Video signal decoder is connected with above-mentioned video signal interface, and analog video signal is converted to digital video signal; And
Video and audio processing modules, be connected with above-mentioned video signal decoder and audio signal interface, receive the data of digital video signal of above-mentioned video signal decoder output and the simulated audio signal of audio signal connecting portion output, and be provided with the data of digital video signal and simulated audio signal are converted to the encoder that is connected to the digital signal that PC can show by the USB line on PC.
2, wireless camera according to claim 1, it is characterized in that wherein said video signal decoder is the digital video signal that analog video signal is converted to the ITU 656 YUV 4:2:2 forms (be the CCIR656 form, below all be called the CCIR656 form) of standard.
3, wireless camera according to claim 1 is characterized in that wherein said video processing module has the video frequency processing chip that the picture signal of input can be converted to vision signal output.
4, wireless camera according to claim 3 is characterized in that wherein said video frequency processing chip is VC0701 type telephotography head (TV camera) chip of Co., Ltd of Z-Star Microelectronics.
5, wireless camera according to claim 1, it is characterized in that wherein said signal emission tuner is made as is connected with more than one audio input device and realizes the structure of stereophonic effect, and this signal emission tuner reception and handle the audio signal that more than one audio input device is imported.
6, wireless camera according to claim 1 is characterized in that wherein said signal emission tuner is to be made as the structure that input signal is launched with the tranmitting frequency that fixedly installs.
7, wireless camera according to claim 1 is characterized in that wherein said signal emission tuner is to be made as the structure of input signal being selected tranmitting frequency emission in the transmit frequency range that is provided with.
8, wireless camera according to claim 6 is characterized in that wherein said signal receiving module is to be made as the structure of selecting a frequency to receive in the transmit frequency range of signal emission tuner.
9, wireless camera according to claim 1 is characterized in that being provided with user's configuration register in wherein said signal emission tuner and the signal receiving demodulation device.
10, wireless camera according to claim 1 is characterized in that wherein said video and audio processing modules are provided with the clock signal of system frequency of 27MHz.
11, wireless camera according to claim 1, it is wherein arbitrary to it is characterized in that wherein said video and audio processing modules are integrated with microprocessor, read-only memory digital signal processing module, random access memory digital signal processing module at least.
12, wireless camera according to claim 1 is characterized in that wherein said audio input device uses LM358 type integrated circuit that the simulated audio signal of microphone or circuit (Line in) input is amplified.
13, wireless camera according to claim 2, it is characterized in that wherein said video signal decoder is to use the SAA7113H type decoding chip that adopts the 24.576MHz standard time clock that analog video signal is converted to the digital video signal of CCIR656 form, and be 27MHz output with the output speed this digital video signal.
14, wireless camera according to claim 2, the encoder that it is characterized in that wherein said video and audio processing modules is that the digital video signal of CCIR656 form is encoded, and simultaneously simulated audio signal is converted to the integrated circuit modules of digital audio and video signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100889168A CN100375505C (en) | 2005-08-01 | 2005-08-01 | Wireless webcam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100889168A CN100375505C (en) | 2005-08-01 | 2005-08-01 | Wireless webcam |
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| Publication Number | Publication Date |
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| CN1731826A true CN1731826A (en) | 2006-02-08 |
| CN100375505C CN100375505C (en) | 2008-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100889168A Expired - Fee Related CN100375505C (en) | 2005-08-01 | 2005-08-01 | Wireless webcam |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464584C (en) * | 2006-11-21 | 2009-02-25 | 北京中星微电子有限公司 | Video monitoring system and method for implementing signal encription |
| CN102186074A (en) * | 2011-04-28 | 2011-09-14 | 济南大学 | Video signal wireless transmission device |
| CN102223471A (en) * | 2010-04-13 | 2011-10-19 | 天津三星光电子有限公司 | Digital camera with wireless camera function |
| CN102692882A (en) * | 2012-06-21 | 2012-09-26 | 上海理工大学 | Wireless video control device for servo motor |
| CN104410837A (en) * | 2014-12-11 | 2015-03-11 | 重庆长航东风船舶工业公司 | Video monitoring system |
| CN105487645A (en) * | 2014-09-16 | 2016-04-13 | 洪永川 | Intelligent terminal system having signal conversion function |
| CN108881829A (en) * | 2018-06-25 | 2018-11-23 | 深圳市招华智能股份有限公司 | A kind of method and system of transmission of video |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2423688Y (en) * | 2000-04-21 | 2001-03-14 | 大纮科技股份有限公司 | Small radio camera set |
| CN1386000A (en) * | 2001-05-14 | 2002-12-18 | 丽台科技股份有限公司 | Gate number identifying system and operation method thereof |
| CN1270458C (en) * | 2003-04-18 | 2006-08-16 | 北京中星微电子有限公司 | A remote wireless monitoring device and method thereof |
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2005
- 2005-08-01 CN CNB2005100889168A patent/CN100375505C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464584C (en) * | 2006-11-21 | 2009-02-25 | 北京中星微电子有限公司 | Video monitoring system and method for implementing signal encription |
| CN102223471A (en) * | 2010-04-13 | 2011-10-19 | 天津三星光电子有限公司 | Digital camera with wireless camera function |
| CN102186074A (en) * | 2011-04-28 | 2011-09-14 | 济南大学 | Video signal wireless transmission device |
| CN102692882A (en) * | 2012-06-21 | 2012-09-26 | 上海理工大学 | Wireless video control device for servo motor |
| CN105487645A (en) * | 2014-09-16 | 2016-04-13 | 洪永川 | Intelligent terminal system having signal conversion function |
| CN105487645B (en) * | 2014-09-16 | 2018-11-20 | 深圳市冠凯科技有限公司 | A kind of intelligent terminal system with function switching signal |
| CN104410837A (en) * | 2014-12-11 | 2015-03-11 | 重庆长航东风船舶工业公司 | Video monitoring system |
| CN108881829A (en) * | 2018-06-25 | 2018-11-23 | 深圳市招华智能股份有限公司 | A kind of method and system of transmission of video |
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| Publication number | Publication date |
|---|---|
| CN100375505C (en) | 2008-03-12 |
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Effective date of registration: 20090313 Address after: Tianjin economic and Technological Development Zone fourth, 80 Avenue, Tian Da Science and Technology Park, block A1, 2 Patentee after: Vimicro Electronics Co., Ltd. Address before: No. 35, Xueyuan Road, Beijing, Haidian District, Nanjing building, 15 Floor Patentee before: Beijing Vimicro Corporation |
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Owner name: ZHONGXING ELECTRONIC CO., LTD. Free format text: FORMER OWNER: ZHONGXING MICROELECTRONCI CO., LTD., BEIJING Effective date: 20090313 |
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