CN203250370U - Digital monitor - Google Patents

Digital monitor Download PDF

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Publication number
CN203250370U
CN203250370U CN 201320227997 CN201320227997U CN203250370U CN 203250370 U CN203250370 U CN 203250370U CN 201320227997 CN201320227997 CN 201320227997 CN 201320227997 U CN201320227997 U CN 201320227997U CN 203250370 U CN203250370 U CN 203250370U
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China
Prior art keywords
lockhole
switch
resistance
amplifier
door
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Expired - Fee Related
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CN 201320227997
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Chinese (zh)
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周从戎
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Individual
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Abstract

The utility model provides a digital monitor which belongs to the technical field of a door. The digital monitor is formed by an anti-theft door, a keyhole covering sheet, a recording control unit, an alarm starting unit, and a sound system. When someone tries to commit the crime through a keyhole, a touch signal is generated once the keyhole covering sheet is touched, and the signal starts the recording control unit and the sound system to carry out recording and warning. The alarm starting unit is formed by a travel switch, a keyhole switch and an electronic self-locking circuit. For keyhole covering sheet looseness and a keyhole switching operation such as entering into a house in a forced way which are not stopped, the travel switch between the door and a door frame acts, two switches generate alarm starting signals, the signals pass through the electronic self-locking circuit, the recording control unit and the sound system are reliably started, and recording and alarming are carried out. Through the implementation of the digital monitor, the performance of anti-theft products is improved further, and a basis is provided for the development of anti-theft security door products.

Description

The digital monitoring device
Technical field
Belong to an industry technical field.
Background technology
Alarm is the commonly used antitheft equipment that cooperates with anti-theft safety door, can remedy the some shortcomings of anti-theft safety door, but wants to become outstanding antitheft series products, and it is inadequate that alarm is only arranged.
In present household products, shooting is combined with alarm often, and it can monitor the various people in this zone and the thing of generation at any time, will play very important effect to understanding the thing that occured at that time.
To some non-public places, such as family, the generation that common product adopts event just begin to produce the shooting record, (because such processing easily reaches with requirement), although such function is very important, but the situation before can't the understanding case also becomes a kind of very large deficiency.Because have behind the front record of concluding a case one to be to perform in advance security measures, gaining the initiative property, even generation event after overcoming.The 2nd, the front record of concluding a case is arranged, to the understanding of event more comprehensively.So have the front shooting of case writing function important in inhibiting.
Security personnel's series products, the startup of warning is vital, if generation wrong report or the situation that runs into are not reported, is very serious thing.Show after deliberation, address this problem, must make an effort simultaneously aspect machinery and two in the circuit, cooperatively interact, the effect that just can obtain, but to use what kind of physical construction, and what kind of circuit of joining be only best disposal route, this also is an important topic that is worth research.
Summary of the invention
Main task of the present invention and purpose are to propose a kind of new technical measures, the record that emphasis can be arranged the environment of family, Automatic sieve is selected unwanted part, also be the record of shooting with video-corder that the front situation of case is arranged, no matter crack lockhole or use barbarous mode, the record of can both making a video recording, and report to the police, be a kind of security personnel's product category that integrates multiple advantage, thereby be conducive to the public security of society, the safety in family is arranged.
The technical solution used in the present invention is:
1, the digital monitoring device is by antitheft door, and lockhole is covered sheet, shoots with video-corder control module, the warning start unit, and several parts of sound system form jointly.
Wherein: it is to be positioned on the lockhole top that lockhole is covered sheet, has made the bottle cap shape, and what dock with the bottle cap sheet is a kind of ring flange, and the ring flange chassis is fixed on the door, and the mode that the bottle cap sheet is connected with ring flange adopts engage thread to connect.
End with a wire connects lockhole coverage sheet, shooting record automatic control unit input end before the other end connection case.
The warning start unit is jointly to be made of travel switch, lockhole switch, electronic self-locking circuit:
Travel switch is to be contained in door and doorframe junction, when door close close after, the travel switch button is lived in doorframe compressing, with the travel switch contact with drawing.
The lockhole switch is to be positioned on lockhole to cover under the sheet, and on the lockhole, lockhole is covered the button that the lockhole switch is lived in the lower rear compressing of sheet lid.
Electronic self-locking circuit is that electronic self-locking circuit is respectively to be connected in series a diode cathode with travel switch with lockhole switch output extension line, the negative pole of two diodes is connected together and has connected the base stage of the NPN triode in the latching circuit after the series connection through resistance, the grounded emitter line of this triode, the base stage of this NPN triode, the other end ground wire of this resistance have been connected with an end of a resistance; The connected rear base stage that has connected the PNP triode of locating in the latching circuit of another resistance of the collector of this NPN triode, the emitter of PNP triode has connected 12 volts of power supplys, connected the emitter of PNP pipe with an end of another resistance, the other end of this resistance has connected the base stage of PNP pipe; Connected the collector of PNP pipe with a utmost point of an electric capacity, this electric capacity has been connected the base stage of NPN pipe in addition behind resistance of extreme series connection and the diode cathode; Another utmost point of this electric capacity has also connected an end of another resistance, the other end ground connection of this resistance; This PNP transistor collector has connected shoots with video-corder control circuit and sound equipment warning circuit.
Shoot with video-corder control module by case before shooting record automatic control unit, the rest-set flip-flop that band shows, time controller, shooting manually boots switch, video camera recorder forms jointly.
Shooting record automatic control unit is the normal phase input end that signal leading arrives first order operational amplifier before the case, the negative phase end of first order operational amplifier is connected a gain adjusting resistance with the output of first order amplifier, the output of first order amplifier is connected to the normal phase input end of second level amplifier, comparison bleeder circuit by two resistance series connection, two resistance series connection points connect the negative phase end of second level amplifier, bleeder circuit one termination live wire, other end ground wire, the output of second level amplifier has connected three the tunnel, the first via has connected the input of electronic switch, and the second the tunnel has connected the input of the rest-set flip-flop of band demonstration; Third Road has connected time controller control end.
The output of electronic switch has connected video camera recorder.
Sound system is the base stage that the output of voice sheet has connected preposition amplifier tube, the grounded emitter of preposition amplifier tube, collector is connected on the base stage of the PNP pipe that forms power amplifier, the base stage that forms the PNP pipe of power amplifier has also connect an end of power amplifier level pull-up resistor, the pull-up resistor other end connects to form the base stage of the NPN pipe of power amplifier, the PNP pipe that forms power amplifier is managed commissure electric capacity of central point series winding that emitter is connected with NPN, one end of another termination loudspeaker of commissure electric capacity, the other end ground wire of loudspeaker, the NPN pipe Integrated electrode that forms power amplifier is received on the electronic switch of shooting with video-corder control module.
2, the lockhole switch is one and is contained within the ring flange without the self-locking type pushbutton switch, exposes button.
The operational amplifier of 3, shooting with video-corder in the control module is 324.
4, the loudspeaker of selecting in the sound system are loudspeaker of internal magnetization.
5, feedback capacity is to be connected into the form of electrodeless electric capacity with anodal linking to each other of two electrochemical capacitors in the electronic self-locking circuit.
6, be that the triode that forms latching circuit is large power triode in the electronic self-locking circuit.
Be the clear meaning of understanding the technical program, at first will make the following instructions:
1, before this, the inventor is studied antitheft door, and proposed normal door and opened the door without mechanical key, but the measure of the mode of opening the door with electronics telecontrol engineering or phone.Be when normal door, send instruction by remote control to the propulsion system that are installed in the door, promote the lockset action, realize opening the door.Meanwhile, still kept the form that mechanical key opens the door, its objective is to have a kind of opening the door to remedy when automatic system goes wrong, so antitheft door can be made lockhole semiclosed processing, its meaning is, lockhole is covered during normal the use, only during out of order special circumstances, just lockhole is covered sheet and is opened.
2, it is reported, to the security personnel of family, the most important thing is the security personnel of opposite house, and the security personnel of opposite house, emphasis is again the security personnel to lockhole, because the great majority crime all is by cracking of lockhole entered house.For this reason, the inventor has covered cover plate above lockhole, Men Bulu lockhole at ordinary times, on the contrary mostly be suspectable people with the people that hand is taken off lid.The record so should make a video recording, and be the important front shooting of case record.
3, based on above-mentioned situation, record three kinds of functions before the case of measure of the present invention, one of function be that shooting begins immediately as long as hand touches lockhole top cover plate, if stop to continue, automatically stop shooting.Two be when automatic camera records, to have recorded simultaneously the time that occured at that time, three be occurrence record after, the Presentation Function of record before the case will be arranged, announcements in the people overwriting situation once occured, to watch.
4, can preset with the rule of time period and initiatively make a video recording, namely be artificially will be set in the time on one's own initiative on a certain period, and this moment, video camera recorded ambient conditions with automatic camera, rather than will contact the lockhole cover plate.This situation mainly is for the active monitoring of the people of family to environment.It should be noted that it is whole shootings of 24 hours all day that this period comprises.
5, the shooting of the overall process after crime is produced.
6, produce the principle explanation of above function: (explain with Fig. 1.)
Produce the principle of contact lockhole cap automatic camera record: after criminal's hand touches the signal leading sheet of lockhole top, just be imported in the in-phase end of operational amplifier of the first order and amplify, being input to again afterwards comparison amplifier further amplifies, this have a very large gain, can fully guarantee to warn in advance sensitivity and the reliability of signal.Its reason is in this circuit, the resistance of first order operation amplifier level (among Fig. 1 103) can be adjusted the gain of this grade flexibly, and the divider resistance ratio (106 in the accompanying drawing 1) of adjusting the comparison amplifier end of oppisite phase that second level operation amplifier level forms can be adjusted again the gain of this grade flexibly.
Producing the principle of period shooting record: 116 among Fig. 1 is a kind of have time control and instruments (abbreviation time-controlling apparatus) that show, as long as preseted the time, it will output signal, through or door (among Fig. 1 111) after, open electronic switch (among Fig. 1 112), then allow video camera work.
Produce the principle of shooting record overall process: although hand has left lockhole top cover plate after forcing open the door, but above the lockhole and the alarm switch contact that is pressed under the cover plate is not oppressed by cover plate, variation has occured, and switch 119 is closed among this Fig. 1, so opened the video camera job record.
Behind the front shooting record of generation case displaying principle is arranged: 118 is a kind of rest-set flip-flops with demonstration among Fig. 1, thereby have Memorability, when each or door has output to open electronic switch 112, all can trigger the rest-set flip-flop of memory, in case so after rest-set flip-flop was triggered, additional LED can luminescence display.
The principle of shooting record writing time before the generation case: when each or door has output to open electronic switch 112, have signal to trigger the time controller, so can automatically record the moment of generation.
7, produce the warning function principle: when door and doorframe are subjected to displacement, the travel switch contact of pacifying every and doorframe junction changes, and has produced the warning enabling signal; When loosening or open the cover plate of lockhole top fully after, the lockhole shift knob of being satisfied with cover plate below, lockhole top does not suffer oppression and the contact changes, also produce the warning enabling signal, the contact of biswitch has connected electronic self-locking circuit, the output of electronic self-locking circuit starts video camera work, has opened simultaneously warning system work.
One of the principle of electronic self-locking circuit is: the form to the pipe amplification that (1) adopts NPN and PNP to constitute jointly, following meaning is arranged,, amplification quantity is large; Two, the PNP pipe become saturated after, the loss of voltage of generation little (when being furnished with accumulator, peculiar meaning); Three, can easily transient signal be changed into a kind of long signal; Four, formed electronic switch volume is urinated in miniaturization.
(2), in the electronic switching circuit that pipe is formed, anti-remaining resistance, namely be that the resistance that connects between PNP pipe emitter and the base stage has played vital role in circuit, its effect is when NPN pipe no signal, the thorough no-voltage of the output of switch, output for the through engineering approaches that electronic switch uses, has been created essential condition without any remaining electricity.
(3), why between two pipes, add the positive feedback with Capacitance derivative, the one, satisfy this condition, the 2nd, can realize automatic recovery.
(4), why feedback capacity adopts electrodeless reason to be, the electrodeless electric capacity leakage coefficient is little, is used for down to feedback circuit, and circuit is more stable.
8, the such installation benefit of warning starting switch be sensitive, reliable, can generation not make us terrified wrong report simultaneously.Reason one is alarm switch when event does not occur, and the contact can not be subjected to displacement.The 2nd, do not affect the normal habits and customs of people, thereby do not affect the normal operation of the each starting of security system.
9, the principle of sound system is: formed the prestage that sound equipment amplifies by a triode, formed complementary circuit by a PNP and NPN triode audio frequency has been carried out power amplifier, when pre-caution signal is arranged, the power supply of this part has been opened in its output control, so have voice to produce, because this electric circuit constitute is an OTL rather than OCL circuit, so debugging is simple, and have element not perishable, and the higher advantage of efficient.
After the invention process, the anti-theft security goalkeeper presents a kind of brand-new looks, and following outstanding advantage is arranged:
1, after the invention process, anti-theft safety door and alarm have been realized the combination of science, three kinds of functions integrate, one of be to have the function that the people is kept outside the door, two are the functions with automatic camera record, three are the functions of reporting to the police, three kinds of functions are all very important, promote all sidedly security personnel's performance of anti-theft safety door, enriched the kind of antitheft door.
2, shooting with video-corder operation circuit has very high sensitivity and reliability, after debugging, all is fit to all-environment needs, and circuit is simple, and debugging is convenient.
3, the shooting record performance is excellent.The one, record is given prominence to the key points before the case.The 2nd, after being arranged, record can automatically show the owner of announcement, can " not leak visit ".The 3rd, cases has occured to do can record overall process.The 4th, shooting records various ways.The 5th, in when record time of generation is arranged.These 5 meanings have return visit and save time, economize energy, save device resource etc. serial advantage, have realized that really workable characteristics are.(in the situation of work strain, family can not carry out " return visit " to shooting by impunity, more impossible in return visit, watch a lot of useless general impunities records).Thereby for understanding the family public security present situation, very important positive role is arranged.
4, warning function is reliable and sensitive, does not importantly produce wrong report.
5, reliable, easy to use.Reason one be video camera recorder and warning system at ordinary times most cases be in the no power state, do not produce electrical wear, all be at any time a kind of " highly waiting " state, the 2nd, closing the door when opening without any need for other additional move user between the whole operating period, do not affect normal habits and customs, can not produce malfunctioning situation.
6, produce easily, do not need the instrument and meter of price top grade.
7, the line power of sound equipment caution system is large, and is simple, and debugging is convenient, power saving.
8, it is reliable that warning starts sensitivity, relaxed the requirement to switch, reduced the difficulty that switch is installed.
Description of drawings
Fig. 1 is shooting record automatic control circuit figure before the case.
Among the figure: 3, early warning signal takes out the sheet lead-in wire; 102, first order amplifier positive terminal; 103, first order amplifier gain adjusting resistance; 104, first order amplifier negative phase end; 105, first order operational amplifier; 106, second level amplifier; 107, second level amplifier negative phase end; 108, second level amplifier positive terminal; 109, second level comparison amplifier divider resistance; 111, shoot with video-corder in the control module startup or the door; 112, electronic switch; 113, video camera recorder; 115,, there is the rest-set flip-flop of demonstration in generation; 116, time controller; 119, lockhole switch; 120, hand switch.
Fig. 2 is shooting record and the mutual relationship figure partly that reports to the police.
Among the figure: 101, sheet is covered in the lockhole top; 119, lockhole switch; 120, hand switch; 6, travel switch; 38, electronic self-locking circuit; 201, shoot with video-corder shooting tracer signal amplifying circuit before the case in the control module; 111, shoot with video-corder in the control module startup or the door; 112, electronic switch; 113, video camera recorder; 202, sound system.
Fig. 3 is travel switch scheme of installation in the alarming starter.
Among the figure: 5, anti-theft safe doorframe; 1, anti-theft safety door; 2, hinge; 7, the box of travel switch is installed; 6, travel switch; 12, travel switch contact extension line.
Fig. 4 is the scheme of installation that lockhole is covered lockhole switch in sheet and the alarming starter.
Among the figure: 1, anti-theft safety door; 81, lockhole; 82, ring flange; 101, sheet is covered in the lockhole top; 3, early warning signal takes out the sheet lead-in wire; 89, the printed panel of welding switch; 119, lockhole switch; 127, lockhole switch extension line.
Fig. 5 is electronic self-locking circuit figure.
Among the figure: 127, lockhole switch extension line; 12, travel switch extension line; 51, travel switch connecting electronic latching circuit input or gate diode; 50, lockhole switch connecting electronic latching circuit input or gate diode; 52, input resistance; 53, NPN amplifying triode; 54, the commissure resistance between two amplifier tubes; 55, anti-remaining resistance; 56, PNP three utmost point amplifier tubes; 57, isolating diode; 58, discharge resistance; 59, feedback capacity; 60, discharge resistance; 61, feedback resistance; 62 feedback diodes; 63, steady resistance; 70, wireless remote control radiating circuit; 71, another electrochemical capacitor that forms electrodeless electric capacity; 75, electronic self-locking circuit output.
Fig. 6 is sound system circuit figure.
Among the figure: 75, electronic self-locking circuit output; 301, neutral voice sheet; 302, preposition amplifier tube; 303, preamplifier state load dual-use function resistance; 304, the PNP pipe that forms power amplifier; 305, the NPN pipe that forms power amplifier; 306, commissure electric capacity (OTL circuit capacitance); 112, electronic switch; 308, loudspeaker.
Embodiment
Fig. 1 to Fig. 6 has described implementation example of the present invention.
One, the enforcement of warning start unit.
1, with sheet metal extruding bottle cover structure and ring flange, wherein; Bottle cap structure spare area is greater than lockhole, and Bottle cap structure spare and ring flange attack the negative and positive screw thread mutually, makes Bottle cap structure spare screw in bottleneck structure spare with the method for rotation.
When 2, installing, ring flange tried to get to the heart of a matter is affixed on the door its hollow lockhole that exposes.Screw used for flange disc is fixed on the door.
3, travel switch is fixed on the bar printing plate and allows lockhole switch and printed panel become one, draw shooting tracer signal amplifying circuit before the line connection case from the lockhole switch contact, in the alarm sound system.
The printed panel that 4, will be fixed with the lockhole switch is placed on the ring flange hollow position, with the button cover of lockhole switch to the bottle cap face.
5, rotary bottle cover structural member, and allow this part capping compressing live lockhole shift knob change contact contact situation.
6, travel switch is fixed in the box, box is fixed in the door again.
7, the travel switch contact is drawn with wire and is connected in the electronic self-locking circuit input.
8, weld as shown in Figure 5 electronic self-locking circuit, adjust feedback resistance, feedback time is met the requirements.The output of electronic self-locking circuit is connected in the startup or door and sound system of shooting with video-corder in the control module.
Two, according to shooting record automatic control circuit before Fig. 1 enforcement case, with the alarm sound system.
1, press Fig. 1 welding, the two-stage amplification circuit adopts 324 among the figure.It is the kind of positive signal that startup or door are selected three input and output.
2, be soldered rear inspection to function and debugging:
During A, hand contact lockhole top cover plate, video camera recorder work, hand leaves and automatically stops afterwards, otherwise should adjust gain resistor in the amplifier (among Fig. 1 109).
The time control section of B, the time-controlling apparatus of adjusting, the time period that simulation is adjusted, video camera recorder should be worked.Otherwise should check and start or door.
C, manually opened switch 120, video camera recorder should be worked.
D, after video camera recorder work, the rest-set flip-flop indicating lamp that band shows is bright, and the time controller has the corresponding time, otherwise should check relevant part.
Three, sound system is by enforcement shown in Figure 6.The each several part relation as shown in Figure 2.

Claims (6)

1. digital monitoring device is characterized in that: by antitheft door, lockhole is covered sheet, shoots with video-corder control module, the warning start unit, and several parts of sound system form jointly;
Wherein: it is to be positioned on the lockhole top that lockhole is covered sheet, has made the bottle cap shape, and what dock with the bottle cap sheet is a kind of ring flange, and the ring flange chassis is fixed on the door, and the mode that the bottle cap sheet is connected with ring flange adopts engage thread to connect;
End with a wire connects lockhole coverage sheet, shooting record automatic control unit input end before the other end connection case;
The warning start unit is jointly to be made of travel switch, lockhole switch, electronic self-locking circuit:
Travel switch is to be contained in door and doorframe junction, when door close close after, the travel switch button is lived in doorframe compressing, with the travel switch contact with drawing;
The lockhole switch is to be positioned on lockhole to cover under the sheet, and on the lockhole, lockhole is covered the button that the lockhole switch is lived in the lower rear compressing of sheet lid;
Electronic self-locking circuit is that electronic self-locking circuit is respectively to be connected in series a diode cathode with travel switch with lockhole switch output extension line, the negative pole of two diodes is connected together and has connected the base stage of the NPN triode in the latching circuit after the series connection through resistance, the grounded emitter line of this triode, the base stage of this NPN triode, the other end ground wire of this resistance have been connected with an end of a resistance; The connected rear base stage that has connected the PNP triode of locating in the latching circuit of another resistance of the collector of this NPN triode, the emitter of PNP triode has connected 12 volts of power supplys, connected the emitter of PNP pipe with an end of another resistance, the other end of this resistance has connected the base stage of PNP pipe; Connected the collector of PNP pipe with a utmost point of an electric capacity, this electric capacity has been connected the base stage of NPN pipe in addition behind resistance of extreme series connection and the diode cathode; Another utmost point of this electric capacity has also connected an end of another resistance, the other end ground connection of this resistance; This PNP transistor collector has connected shoots with video-corder control circuit and sound equipment warning circuit;
Shoot with video-corder control module by case before shooting record automatic control unit, the rest-set flip-flop that band shows, time controller, shooting manually boots switch, video camera recorder forms jointly;
Shooting record automatic control unit is the normal phase input end that signal leading arrives first order operational amplifier before the case, the negative phase end of first order operational amplifier is connected a gain adjusting resistance with the output of first order amplifier, the output of first order amplifier is connected to the normal phase input end of second level amplifier, comparison bleeder circuit by two resistance series connection, two resistance series connection points connect the negative phase end of second level amplifier, bleeder circuit one termination live wire, other end ground wire, the output of second level amplifier has connected three the tunnel, the first via has connected the input of electronic switch, and the second the tunnel has connected the input of the rest-set flip-flop of band demonstration; Third Road has connected time controller control end;
The output of electronic switch has connected video camera recorder;
Sound system is the base stage that the output of voice sheet has connected preposition amplifier tube, the grounded emitter of preposition amplifier tube, collector is connected on the base stage of the PNP pipe that forms power amplifier, the base stage that forms the PNP pipe of power amplifier has also connect an end of power amplifier level pull-up resistor, the pull-up resistor other end connects to form the base stage of the NPN pipe of power amplifier, the PNP pipe that forms power amplifier is managed commissure electric capacity of central point series winding that emitter is connected with NPN, one end of another termination loudspeaker of commissure electric capacity, the other end ground wire of loudspeaker, the NPN pipe Integrated electrode that forms power amplifier is received on the electronic switch of shooting with video-corder control module.
2. digital monitoring device according to claim 1, it is characterized in that: the lockhole switch is one and is contained within the ring flange without the self-locking type pushbutton switch, exposes button.
3. digital monitoring device according to claim 1, it is characterized in that: the operational amplifier of shooting with video-corder in the control module is 324.
4. digital monitoring device according to claim 1, it is characterized in that: the loudspeaker of selecting in the sound system are loudspeaker of internal magnetization.
5. digital monitoring device according to claim 1 is characterized in that: feedback capacity is to be connected into the forms of electrodeless electric capacity with anodal linking to each other of two electrochemical capacitors in the electronic self-locking circuit.
6. digital monitoring device according to claim 1 is characterized in that: be that the triode that forms latching circuit is large power triode in the electronic self-locking circuit.
CN 201320227997 2013-05-01 2013-05-01 Digital monitor Expired - Fee Related CN203250370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320227997 CN203250370U (en) 2013-05-01 2013-05-01 Digital monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320227997 CN203250370U (en) 2013-05-01 2013-05-01 Digital monitor

Publications (1)

Publication Number Publication Date
CN203250370U true CN203250370U (en) 2013-10-23

Family

ID=49376796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320227997 Expired - Fee Related CN203250370U (en) 2013-05-01 2013-05-01 Digital monitor

Country Status (1)

Country Link
CN (1) CN203250370U (en)

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C17 Cessation of patent right
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Granted publication date: 20131023

Termination date: 20140501