CN101247490A - Portable off-site video relay broadcasting system - Google Patents
Portable off-site video relay broadcasting system Download PDFInfo
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- CN101247490A CN101247490A CNA2008100654734A CN200810065473A CN101247490A CN 101247490 A CN101247490 A CN 101247490A CN A2008100654734 A CNA2008100654734 A CN A2008100654734A CN 200810065473 A CN200810065473 A CN 200810065473A CN 101247490 A CN101247490 A CN 101247490A
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Abstract
The present invention discloses a portable different-position video broadcasting system which comprises A standard input interfaces, B television modules, C communication modules, D standard output interfaces, E standard driving modules, a matrix switch, a audio-video processing module, a computer harmonizing and control each module, and a control module. The standard input interface and the television module are equally one-way connected with the matrix switch. The communication module and the matrix switch are double-directionally connected. The computer and the control module control the matrix switch to execute switching-on and switching-off between the audio-video processing module and the standard input interface and television module or communication module. Each standard output interface and each standard driving module are equally one-way connected to the corresponding audio-video processing module. The A, B, C, D, E and a are equally a natural number. The device can receive and transmit various audio-video, television and communication signal. A machine with multiple usage is realized and the cost is reduced.
Description
Technical field
The invention relates to a kind of portable off-site video relay broadcasting system, especially about a kind of portable off-site video relay broadcasting system that can be applicable to multiple signal input and the output of multiple signal.
Background technology
Now, the application of comprehensive video more and more widely, the user is also more and more higher to the functional requirement of this kind equipment, but this class of electronic devices can only adopt the application apparatus (as television set or video player etc.) of simple function, the video conversion that it can only realize simple function is not easy to electronic equipment is carried out the integrated function expansion.
Since function singleness, thus cause: can not in time send assistance message accurately when 1) going out to meet accident; Can not be used for the doctor carries out the remote control inspection, instructs treatment; 2) can not solve and to answer a call and do not receive the problem of existing TV station TV signal; 3) television set (or set-top box) can not be solved and the problem that has TV station's TV signal now and do not connect telephone signal can be received; 4)) can not solve the problem that can receive network, TV station's TV signal and can not confirm own position (PLRS); 5) can not solve mobile (as by bus, ship or aircraft) time can not completely store, play, edit, transmit the problem of (institute's program request high definition level) TV programme; 6) can not implement the transmitting-receiving of variety classes, multiple signal simultaneously, and owing to can not realize function expansion and comprehensive utilization, so can only lay particular emphasis on the making single product, and then cause the significant wastage of system resource, materials and equipment resources.
Summary of the invention
Technical problem to be solved by this invention is, overcome the deficiencies in the prior art, provide a kind of and can realize a tractor serves several purposes, can reduce cost and can realize reception, broadcast, the storage of various existing audio-video signals, the portable off-site video relay broadcasting system of forwarding in various occasions.
The technical solution adopted for the present invention to solve the technical problems is: a kind of portable off-site video relay broadcasting system, it is characterized in that: comprise A the standard input interface that can receive audio-video signal and its signal format is discerned, but the television module of B received television signal, C the communication module that can receive and dispatch signal of communication, the standard output interface of D discernible signal form and output audio-video signal, E the standard driver module that can drive audio-video terminal, matrix switch, a audio frequency and video processing module and the coordination that can handle audio-video signal, control the computer of each module, control module, standard input interface and television module all are connected with matrix switch is unidirectional, communication module is connected with matrix switch is two-way, matrix switch is connected with each audio frequency and video processing module is all two-way, computer, control module gating matrix switch is at audio frequency and video processing module and standard input interface, carrying out break-make between television module or the communication module switches, each standard output interface and each standard driver module all with corresponding unidirectional connection of audio frequency and video processing module, this A, B, C, D, E and a are natural number.
Described standard output interface all is selected from: ITU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, Display port, RGB, audio or SPEAKER interface; The standard input interface is selected from: ITU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, RGB, Audio or Mic interface.
Described television module comprises antenna, height, intermediate-frequency circuit, demodulator circuit, coding-decoding circuit and the base band signal process circuit that connects in turn, the output connection matrix switch of this base band signal process circuit.
Comprise at least one mobile communication module, at least one wireless network module, at least one GPS functional module and at least one phone module in the described C communication module.
Described computer, control module are connected with Ethernet interface.
Described computer, control module one of also are connected with in parallel class interface, serial class interface, card class interface and the control bus at least.
Described computer, control module are connected with the medical treatment transducer module.
Described computer, control module are connected with the head portrait identification module.
The invention has the beneficial effects as follows, can receive and dispatch multiple audio frequency and video, TV and signal of communication simultaneously, realize a tractor serves several purposes, applicability is wide, has reduced cost, can realize reception, broadcast, storage, the forwarding of various existing audio-video signals in various occasions.
Description of drawings
Fig. 1 is the structural representation of present embodiment portable off-site video relay broadcasting system;
Fig. 2 is the structural representation of present embodiment TV, communication module.
Embodiment
The present embodiment portable off-site video relay broadcasting system comprises A the standard input interface that can receive audio-video signal and its signal format is discerned, but the television module of B received television signal, C the communication module that can receive and dispatch signal of communication, the standard output interface of D discernible signal form and output audio-video signal, E the standard driver module that can drive audio-video terminal, matrix switch, a audio frequency and video processing module and the coordination that can handle audio-video signal, control the computer of each module, control module, standard input interface and television module all are connected with matrix switch is unidirectional, communication module is connected with matrix switch is two-way, matrix switch is connected with each audio frequency and video processing module is all two-way, computer, control module gating matrix switch is at audio frequency and video processing module and standard input interface, carrying out break-make between television module or the communication module switches, each standard output interface and each standard driver module all with corresponding unidirectional connection of audio frequency and video processing module, this A, B, C, D, E and a are natural number.
TV, communication module comprise television module and communication module, and its input/output signal is wireless signal, TV signal, telephone signal, gps signal etc.Television module is used to realize the input and output of TV signal.Communication module comprises mobile communication module, GPS functional module and wireless network module.
Standard input interface and standard output interface all adopt existing standard interface.Standard output interface such as ITU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, Display port, RGB, audio or SPEAKER interface, standard input interface such as TU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, RGB, Audio or Mic interface.Signal processing function modules such as all built-in AD of these standard input or output interfaces, DA, the major function of this functional module is to finish the identification of audio-video signal form.Receive according to demand that different pattern of the input signals is finished corresponding processing after deliver to 1. standard driver module behind the matrix switch, audio frequency and video processing module; 2. or as calculated machine, control module are delivered to memory cell through relevant interface and are stored; 3. or as calculated the machine protocol processes after network, communication module send.
The standard driver module is that the VGA interface of audio/ audio interface, various resolution and LVDS, TTL, T-con export driving; Can directly drive panel modules such as speaker and LCD, LED, plasma.
The function of audio frequency and video processing module is: the 1. encoding and decoding of video/audio signal, adjustment; The identification of video/audio signal form and the conversion between the different-format etc.; 2. carry out as 2D, 3D, Scale, de-interlacers, mamma correction etc.; 3. Compress softwares of all kinds of digital video signals such as JPG/MP1/MP2/MP3/MP4/H.264/AVS etc.The quantity of audio frequency and video processing module can be configured according to demand, and it can be worked simultaneously.For example, signal is the digital coding TV signal (as MP1/MP2/MP4/H.264/AVS etc.) that transmitting terminal sends over after the Digital Television demodulation; Finish decompress(ion) through video/audio signal treatment system unit; Convert the standard that needs to and export corresponding passage to.
Matrix switch is realized the passage " exchange " of variety classes, multi channel signals, and it is by computer, control module (as computer) control; The various signals of variety classes are correctly switched to correct passage.Between each several parts such as standard input interface, TV, communication module, audio frequency and video processing module, computer, control module, realize actions such as correct selection and sending and receiving, switching; Can be single kind, single state work; Also can be that multiple class, reiving/transmitting state are worked simultaneously, for example: 1. television channel reception, telephone channel send; 2. wireless module reception, computer, control module storage; 3. network receives, output drives etc.
Each module of this device is coordinated and controlled to computer, control module, and it can handle the input and output (read-write) of various information such as communication protocol, video/audio encoding and decoding, peripheral hardware information.Network interface, Peripheral Interface passage, number of devices are disposed by 1～n according to demand.
Wireless antenna partly is divided into four kinds of radiovisions, mobile communication, wireless network, GPS; But single antenna is realized, also can be realized by 1～4 group of antenna
Radiovision module, GPS functional module are unidirectional receive path;
Mobile communication module, wireless network module are the sending and receiving duplex channel
Structure wireless, cable television module is basic identical, and it can be divided into two kinds of analog and digital signals by signal type; Can be divided into two kinds of SD and high definitions by definition.This television module is made up of the antenna, height, intermediate-frequency circuit, demodulator circuit, coding and decoding video circuit and the base band signal process circuit that connect in turn; Output signal can be cvbs, S-video, ITU656, YPbPr, YcbCr, RGB, audio or TS stream signal.The other end connection matrix switch of this base band signal process circuit.Operation principle is with associated television machine, set-top box---and be to carry out after the received signal that signal amplifies, down conversion is an intermediate-freuqncy signal, export after the demodulation.
Export behind the anolog TV signals process standard input interface; Signal processing function modules such as the built-in AD of this standard input interface, DA; Major function is for finishing video/audio encoding and decoding, adjustment; Look audio mode identification, conversion; Finish image, sound separation as simulated television through video/audio signal treatment system unit decodes; After relevant treatment, export again; Output signal can be signals such as cvbs, S-video, 656, YPbPr, YcbCr, RGB or audio.
Signal is the digital coding TV signal such as the MP1/2/4 that send over of transmitting terminal, H.264/AVS waits after the Digital Television demodulation; Finish decompress(ion) reprocessing output through the rear end graphics processing unit; Signal can be TS stream or cvbs, S-video, 656, YPbPr, YcbCr, RGB, audio signal.
It is several that mobile communication module is divided into GSM/GPRS, CDMA (cdma2000, WCDMA, TD-Scdma), OFDM etc., and it is formed by the antenna that connects in turn, height, intermediate-frequency circuit, modulation-demodulation circuit, functional circuit and base band signal process circuit.The input of this communication module (or output) signal can be digital signal, also can be simulated audio signal.This base band signal process circuit one end linkage function module; The other end connects matrix switch.This mobile communication module is in order to realize transmission, the reception to compressing the audio frequency and video digital signal; According to application demand by computer control system flexible configuration number of channels and passage kind---example; Under the lower situation of code stream, can select single pass GSM/GPRS, CDMA, OFDM; In the code stream demand than configurable multichannel GSM/GPRS, CDMA, ofdm system under the condition with higher to increase traffic rate.
Wireless network (WLAN) module is divided into WAPI, WI-FI (802.11n), bluetooth, Zigbee etc. are several, it respectively is made up of the antenna, height, intermediate-frequency circuit, modulation-demodulation circuit, functional circuit and the base band signal process circuit that connect in turn, and its input (or output) signal is a digital signal.This wireless network module is in order to realize transmission, the reception to compressing the audio frequency and video digital signal; According to application demand by computer control system flexible configuration number of channels and passage kind---example; Under the lower situation of code stream, can select single pass WAPI, WI-FI (802.11n), bluetooth, Zigbee; In the code stream demand than configurable multichannel WAPI, WI-FI (802.11n), bluetooth, Zigbee system under the condition with higher to increase traffic rate.
The GPS functional module is made up of the antenna, height, intermediate-frequency circuit, modulation-demodulation circuit and the base band signal process circuit that connect in turn, and its output signal is that the digital coordinates signal is to computer, control module.
Phone module is made up of the antenna, modulation-demodulation circuit functional module (as ADSL/VDSL) and the base band signal process circuit that connect in turn; Input (going out) signal can be digital signal, also can be simulated audio signal.This phone module is in order to realize transmission, the reception to compressing the audio frequency and video digital signal; According to application demand by computer control system flexible configuration number of channels and passage kind---example; Under the lower situation of code stream, can select single channel; In the code stream demand than configurable multi-channel system under the condition with higher to increase traffic rate.
Be that example describes with the s-video signal from the input of s-video interface now, the s-video signal is the y/c analog signal;
1) to standard output interface class---as (ITU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, Display port, RGB, Mic, audio).This signal is through matrix switch, and undertaken outputing to the standard output interface after the existing various conversion by the audio frequency and video processing module.
2) to standard driver module class---as audio/ audio interface, VGA, LVDS, TTL, T-con, loudspeaker, LCD, plasma panel, LED panel etc.
Signal is sent into the audio frequency and video processing module through matrix switch, makes respective handling according to the form of output signal.
The major function of audio frequency and video processing module is 2D, 3D, scaler, edge treated, de-interlacers, gamma correction etc.The audio frequency and video processing module is finished after the relevant treatment to the standard driver module, drives audio-video terminal by the standard driver module, as lights various display terminals or connect loudspeaker.
3) to storage, network or communication class
The major function of audio frequency and video processing module is to finish the compression of digital audio-video signal, decompress(ion).
Signal trend during storage is: machine, control module (as computer) are to memory cell (as hard disk) as calculated.
Signal during decompress(ion) trend is: with above-mentioned 2) drive passage to output
Signal during compression trend is: 1. as calculated the Ethernet interface of machine, control module to the Internet;
2. through communication module to the Internet.
The course of work of portable off-site video relay broadcasting system of the present invention is as follows:
1) " radiovision+cable TV+phone+wireless network+cable network+move " passage is opened work simultaneously
A. input channel
1. look the audio standard input interface through matrix switch to the audio frequency and video processing module.
2. wired, radiovision passage: through radio frequency, down conversion, intermediate-frequency circuit, matrix switch to the audio frequency and video processing module; Do not repeat them here.
3. network channel: signal as calculated machine to the audio frequency and video processing module.
4. telephone channel: through matrix switch, computer to the audio frequency and video processing module.
5. mobile communication passage: through matrix switch, computer to the audio frequency and video processing module.
6. wireless tunnel: through matrix switch, computer to the audio frequency and video processing module.
7. GPS passage: through matrix switch to computer, control module.
8. memory device " is read " passage: information such as hard disk, laser disc, USB flash disk machine Peripheral Interface as calculated input to the audio frequency and video processing module.
B. output channel
1. directly export various audio-video terminals to through looking the audio standard output interface.
2. network channel: through matrix switch, computer to the network channel port.
3. telephone channel: machine, matrix switch are to the telephone channel port as calculated.
4. mobile communication passage: machine, matrix switch are to the mobile communication access port as calculated.
5. wireless tunnel: machine, matrix switch are to the wireless tunnel port as calculated.
6. memory device " is write " passage: through matrix switch, computer to each Peripheral Interface.
2) course of work seen mutually in real time of strange land, many places TV (video) program; See also Fig. 1 and Fig. 2,
First A watch TV station's TV programme
Second is made a video recording at B ground physical culture in-situ match
Third in hotel, C ground; Bought important VCD data video disc
First need be seen C ground video disc data;
Third need see the shooting of B ground physical culture in-situ match,
Second will be deposited A ground TV station TV programme,
The first machine workflow on A ground:
1. local television signal (wired, wireless, simulation, high definition all can)---TV, communication module---matrix switch---audio frequency and video processing module---first machine display panel, loudspeaker through first machine antenna (cable TV interface).
2. A-B: audio frequency and video processing module---computer, control module editor's (for example delete advertisement, increase captions etc.)---network---the Internet---base station, B ground (mobile communication, wireless network)---second machine antenna---mobile communication, wireless network module---matrix switch---audio frequency and video processing module---computer, control module---second machine hard disk.
3. C-A: laser disc---the third computer machine, control module---audio frequency and video processing module (data is converted to high-quality, low code stream compression algorithm as h.264)---matrix switch---TV, communication module---the third machine telephone wire---C ground data, data switching exchane---the Internet---A ground first machine network interface---computer, control module---first machine hard disk.
The second machine workflow on B ground
①B-C：
Second video camera---second machine cvbs, audio---matrix switch---audio frequency and video processing module (is finished high-quality, low code check audio frequency and video compression)---matrix switch---TV, communication module---mobile communication, wireless network module---second machine antenna---B ground (mobile communication, wireless network) C ground, base station---the Internet---data, data switching exchane---third machine telephone wire---TV, communication module---matrix switch---audio frequency and video processing module---the third machine cvbs, audio---C ground television set.
②A-B
A-B with the first machine workflow on A ground.
The third machine workflow on C ground:
1. B-C: with the B-C of the second machine workflow on B ground.
2. C-A: with the C-A of the first machine workflow on A ground.
3) family practice
The medical treatment transducer module of choosing band standard interface (as USB); Finishing the health index by this systems soft ware of computer run detects as blood pressure, heartbeat, the oxygen content of blood etc.;
1. whether normally on display floater, oneself watch
2. transferring to the related medical website by computer network please observe, analyze by medical practitioner.
4) move rescue
Can open the GPS passage when going out; Realize electronic navigation by the computer run navigation software.
If the prominent accident of meeting; Press " emergency relief " button
1. computer is scaled GPS information concrete place azimuth information automatically and sends " emergency relief " information to relevant unit by the mobile communication passage; Matrix switch is opened voice channels such as MIC, loudspeaker simultaneously in order to conversation
2. patch the medical treatment transducer module field data is transferred to relevant unit.
3. patch camera head field conditions is sent to rescue center by mobile communication, wireless tunnel.
5) the wireless video network storage, monitoring/strange land, the identification of slip-on head picture
Application at alert thing, military affairs, secure context;
1. B ground situation need be watched in A ground
B ground camera system---S-video, audio---matrix switch---audio frequency and video processing module (finishing high-quality, low code check audio frequency and video compression)---matrix switch---mobile communication, wireless network module---antenna---base station, B ground (mobile communication, wireless network)---the Internet---A zone network interface (being Ethernet interface)---computer, control module---audio frequency and video processing module---display terminal.
2. A ground needs accurate observation, tracking, the switching of control B ground camera system
A ground computer, control module---network interface---the Internet---base station, B ground (mobile communication, wireless network)---antenna---mobile communication, wireless network module---B ground computer, control module---Peripheral Interface---B ground camera system (finishing the far and near control of upper and lower, left and right and camera lens)
3. A ground need watch, discern B ground someone
B ground camera system---cvbs---matrix switch---audio frequency and video processing module (finishing high-quality, low code check audio frequency and video compression)---matrix switch---mobile communication, wireless network module---antenna---base station, B ground (mobile communication, wireless network)---the Internet---A zone network interface---computer, control system---audio frequency and video processing module (decompress(ion))---computer, control system (head portrait identification software in the computer) display terminal.
6) electronics frame, no paper fax, email transmitting-receiving
Electronics frame: USB memory card interfaces such as (or) SD---computer, control module---hard disk---output, driver module---display floater
Email transmitting-receiving: mobile communication, wireless network, telephony interface, network interface---computer, control module---output, driver module---display floater (also can directly deposit hard disk in) by computer, control module
No paper fax: telephony interface---computer, control module---output, driver module-display floater (also can directly deposit hard disk in) by computer, control module
TV, communication module possess following advantage: 1. multiple class signal sending and receiving system comprises that mobile communication module is (as GSM/GPRS, CDMA (cdma2000, WCDMA, TD-Scdma, OFDM), wireless network module (as WAPI, WI-FI (802.11n), bluetooth, Zigbee module), television module (as simulated television, number TV word, Standard Definition Television, HDTV (High-Definition Television) module), GPS functional module, phone module, computer network module; 2. multichannel, promptly every kind of signal not only can have one the tunnel, also can be two-way or multichannel; 3. each module can work simultaneously, change.The TV signal that television module receives is TV station's specialty TV signal, can reach the signal of FULL HD standard (1920 * 1080 resolution * 30 frame/seconds).
Mobile communication module, wireless network module, phone module, television module, computer network module, standard input interface, standard output interface, standard driver module can dispose 1～n as required, and each module can be worked simultaneously.
The quantity of audio frequency and video processing module disposes 1～n as required, and each module can be worked simultaneously.
The antenna of TV, communication module is made up of 4 groups of variety classes antennas (corresponding TV, mobile communication, wireless network, GPS respectively) and can be worked simultaneously.
This portable off-site video relay broadcasting system can possess simultaneously: 1) television receiving function; 2) multiple wired, the wireless network transmission system of video signal, Compress softwares function; 3) stored digital, computer processing system function (as functions such as deletion, montage, captions); 4) can realize that strange land, many places TV (video) program sees function in real time mutually; 5) multiple wired, the wireless network transmissions of video compression, video signal, decompress(ion), computer and head portrait automatic recognition software realize that removable, strange land realizes head portrait identification; 6) by (GPS+ video compression, transmission+medical treatment transducer) configuration, realize " mobile emergency rescuing system ".
This portable off-site video relay broadcasting system can have following advantage: 1) can realize receiving and dispatching simultaneously multiple variety classes TV, vision signal in a set of equipment, reduce production cost; 2) unit possesses two-way video communication and video " broadcasting " function; Greatly enriched video signal content; 3) realize the two-way, interactive of video with lowest costs, the simplest mode; 4) television set is realized functions such as no paper fax, digital photo frame, family practice; 5) realize mobile health-care (safety), family practice; 6) realize the monitoring of video wireless network.The quantity of audio frequency and video processing module can design according to the form quantity of supported input signal and the form quantity of supported output signal, thereby can realize the conversion between the different-format.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. portable off-site video relay broadcasting system, it is characterized in that: comprise A the standard input interface that can receive audio-video signal and its signal format is discerned, but the television module of B received television signal, C the communication module that can receive and dispatch signal of communication, the standard output interface of D discernible signal form and output audio-video signal, E the standard driver module that can drive audio-video terminal, matrix switch, a audio frequency and video processing module and the coordination that can handle audio-video signal, control the computer of each module, control module, standard input interface and television module all are connected with matrix switch is unidirectional, communication module is connected with matrix switch is two-way, matrix switch is connected with each audio frequency and video processing module is all two-way, computer, control module gating matrix switch is at audio frequency and video processing module and standard input interface, carrying out break-make between television module or the communication module switches, each standard output interface and each standard driver module all with corresponding unidirectional connection of audio frequency and video processing module, this A, B, C, D, E and a are natural number.
2. portable off-site video relay broadcasting system according to claim 1 is characterized in that: described standard output interface all is selected from: ITU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, Display port, RGB, audio or SPEAKER interface; The standard input interface is selected from: ITU656, cvbs, S-video, YPbPr, YCbCr, DVI, HDMI, RGB, Audio or Mic interface.
3. portable off-site video relay broadcasting system according to claim 1, it is characterized in that: described television module comprises antenna, height, intermediate-frequency circuit, demodulator circuit, coding-decoding circuit and the base band signal process circuit that connects in turn, the output connection matrix switch of this base band signal process circuit.
4. portable off-site video relay broadcasting system according to claim 1 is characterized in that: comprise at least one mobile communication module, at least one wireless network module, at least one GPS functional module and at least one phone module in the described C communication module.
5. portable off-site video relay broadcasting system according to claim 1 is characterized in that: described computer, control module are connected with Ethernet interface.
6. portable off-site video relay broadcasting system according to claim 1 is characterized in that: described computer, control module one of also are connected with in parallel class interface, serial class interface, card class interface and the control bus at least.
7. according to any described portable off-site video relay broadcasting system among the claim 1-6, it is characterized in that: described computer, control module are connected with the medical treatment transducer module.
8. according to any described portable off-site video relay broadcasting system among the claim 1-6, it is characterized in that: described computer, control module are connected with the head portrait identification module.
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| CNA2008100654734A CN101247490A (en) | 2008-03-03 | 2008-03-03 | Portable off-site video relay broadcasting system |
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| CNA2008100654734A CN101247490A (en) | 2008-03-03 | 2008-03-03 | Portable off-site video relay broadcasting system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117868A1 (en) * | 2008-03-25 | 2009-10-01 | 中山大学 | Integrated video system of digital home |
| CN101873473B (en) * | 2009-10-16 | 2012-04-04 | 杭州海康威视数字技术股份有限公司 | Digital video camera with optical fiber interface |
| CN101729790B (en) * | 2008-10-21 | 2012-06-06 | 宏正自动科技股份有限公司 | Matrix multi-computer switch system and signal extender system |
| CN103281573A (en) * | 2013-05-14 | 2013-09-04 | 无锡北斗星通信息科技有限公司 | Multifunctional video/audio signal receiving and transmitting device |
| CN112839186A (en) * | 2019-11-25 | 2021-05-25 | 宏正自动科技股份有限公司 | Data cross point matrix system |
| CN114038444A (en) * | 2021-11-08 | 2022-02-11 | 英辉南方造船（广州番禺）有限公司 | Comprehensive intelligent display system |
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- 2008-03-03 CN CNA2008100654734A patent/CN101247490A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117868A1 (en) * | 2008-03-25 | 2009-10-01 | 中山大学 | Integrated video system of digital home |
| CN101729790B (en) * | 2008-10-21 | 2012-06-06 | 宏正自动科技股份有限公司 | Matrix multi-computer switch system and signal extender system |
| CN101873473B (en) * | 2009-10-16 | 2012-04-04 | 杭州海康威视数字技术股份有限公司 | Digital video camera with optical fiber interface |
| CN103281573A (en) * | 2013-05-14 | 2013-09-04 | 无锡北斗星通信息科技有限公司 | Multifunctional video/audio signal receiving and transmitting device |
| CN103281573B (en) * | 2013-05-14 | 2016-01-06 | 海安常大技术转移中心有限公司 | Multifunctional visual audio signal transmitting/receiving device |
| CN112839186A (en) * | 2019-11-25 | 2021-05-25 | 宏正自动科技股份有限公司 | Data cross point matrix system |
| CN112839186B (en) * | 2019-11-25 | 2024-03-29 | 宏正自动科技股份有限公司 | Data cross-point matrix system |
| CN114038444A (en) * | 2021-11-08 | 2022-02-11 | 英辉南方造船（广州番禺）有限公司 | Comprehensive intelligent display system |
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