CN202217357U - Anti-theft alarm device and anti-theft alarm system - Google Patents
Anti-theft alarm device and anti-theft alarm system Download PDFInfo
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- CN202217357U CN202217357U CN2011203385099U CN201120338509U CN202217357U CN 202217357 U CN202217357 U CN 202217357U CN 2011203385099 U CN2011203385099 U CN 2011203385099U CN 201120338509 U CN201120338509 U CN 201120338509U CN 202217357 U CN202217357 U CN 202217357U
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Abstract
The utility model relates to the field of safety, anti-theft and monitoring, in particular to an anti-theft alarm device which comprises a signal collecting unit and a signal processing unit, wherein the signal collecting unit collects sound signals from the wall of a building and/or the vibration time of the sound signals sent by the wall of the building; the signal processing unit judges whether the frequency or sound intensity of the sound signals is in the sound signal frequency or sound intensity alarm range and/or whether the vibration time is in the vibration time alarm range; and the output end of the signal collecting unit is connected to the input end of the signal processing unit. The utility model provides an anti-theft alarm device which can improve alarm performance.
Description
Technical field
The utility model relates to safe antitheft monitoring field, is specifically related to a kind of burglar alarm and guard against theft and alarm system.
Background technology
In life, the robber increases through the situation of beating in the wall inlet chamber gradually.Though the control point all is equipped with infrared probe or vibration probe, it is bigger that infrared probe receives outdoor environment to influence rate of false alarm, and be difficult to distinguish robber, passerby and animal; Vibration probe automobile through or near have the situation of vibration all can report to the police, so rate of false alarm is also higher, can not be to building masonry wall and monitoring alarm exactly.
The utility model content
The utility model provides a kind of burglar alarm and guard against theft and alarm system, can improve the warning performance.
The utility model provides a kind of burglar alarm, it is characterized in that, comprising:
Collection is from the signal gathering unit of the time of vibration of the voice signal of building masonry wall and/or signal that said building masonry wall is sounded;
Whether the frequency of more said voice signal or the sound intensity is within voice signal frequency or sound intensity alarm range and/or the said time of vibration signal processing unit within the time of vibration alarm range whether;
The output terminal of said signal gathering unit is connected to the input end of said signal processing unit.
In each embodiment of the utility model, preferably, said signal gathering unit comprises:
Gather the sound transducer of said voice signal;
Convert said voice signal into A/D converter that digital form sends to said signal processing unit;
The output terminal of said sound transducer is connected to the input end of said A/D converter.
In each embodiment of the utility model, preferably, said signal gathering unit further comprises:
Signal processor, it comprises pre-amplifying module and/or gain control module and/or bandpass filtering modules block;
Said signal processor has input end that is connected to said sound transducer and the output terminal that is connected to said A/D converter.
In each embodiment of the utility model, preferably, said signal gathering unit further comprises:
Gather said time of vibration and said time of vibration sent to the vibration transducer of coupled said signal processing unit.
In each embodiment of the utility model, preferably, said vibration transducer is connected on the said building masonry wall.
In each embodiment of the utility model, preferably, said signal processing unit further comprises:
Digital signal processor DSP; The input end of said DSP receives respectively from the voice signal of the said digital form of said A/D converter and said vibration transducer and said time of vibration, and the output terminal of said DSP is connected to or as the output terminal of said signal processing unit;
The frequency of the more said voice signal of said DSP or the sound intensity whether within voice signal frequency or sound intensity alarm range and/or said time of vibration whether within the time of vibration alarm range.
In each embodiment of the utility model, preferably, said DSP comprises:
Store the memory module of said voice signal frequency or sound intensity alarm range and/or time of vibration alarm range;
The comparison module that is connected with said memory module and the said voice signal frequency in acquired signal after the signal Processing and the said memory module or sound intensity alarm range and/or time of vibration alarm range are compared.
In each embodiment of the utility model, preferably, said burglar alarm further comprises:
Acoustic control or lamp control alarm, it is connected to the output terminal of said signal processing unit.
The utility model also provides a kind of guard against theft and alarm system, it is characterized in that, comprising:
Like aforesaid burglar alarm;
COM1;
Surveillance center;
Said burglar alarm is connected with said Surveillance center through said COM1.
In each embodiment of the utility model, preferably, said COM1 is connected with said DSP through the serial communication interface chip.
A kind of burglar alarm through the utility model provides can improve the warning performance.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; Below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art; Obviously, the accompanying drawing in below describing only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is the structural drawing of a kind of embodiment of the utility model burglar alarm.
Fig. 2 is the treatment step figure of a kind of embodiment of the utility model burglar alarm.
Fig. 3 is the structural drawing of a kind of embodiment of the utility model guard against theft and alarm system.
Embodiment
Below will combine accompanying drawing that the technical scheme of each embodiment of the utility model is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
The utility model provides a kind of burglar alarm, it is characterized in that, comprising:
Collection is from the signal gathering unit of the time of vibration of the voice signal of building masonry wall and/or signal that said building masonry wall is sounded;
Whether the frequency of more said voice signal or the sound intensity is within voice signal frequency or sound intensity alarm range and/or the said time of vibration signal processing unit within the time of vibration alarm range whether;
The output terminal of said signal gathering unit is connected to the input end of said signal processing unit.
Signal gathering unit is gathered with the time of vibration of the signal of sounding the voice signal of building masonry wall; Signal processing unit is handled gathering the signal that comes; Comparison module compares the voice signal frequency of the frequency of the voice signal of gathering or the sound intensity and/or time of vibration and reference or the voice signal within the sound intensity alarm range and/or the time of vibration within the time of vibration alarm range; Whether see that in reference to scope, signal processor will directly be made alarm response or be transferred to Surveillance center through output terminal after being made judgement according to judged result.The output terminal of signal gathering unit is connected with the input end of signal processing unit.
In each embodiment of the utility model, preferably, said signal gathering unit comprises:
Gather the sound transducer of said voice signal;
Convert said voice signal into A/D converter that digital form sends to said signal processing unit;
The output terminal of said sound transducer is connected to the input end of said A/D converter.
Sound transducer is gathered the voice signal that building masonry wall sends, and the voice signal that collects is a simulating signal.Because signal processing unit; Digital signal processor DSP for example; Can only receiving digital signals; So want earlier with A/D converter the analog signal conversion of sound to be become the digital signal of sound, the digital signal with sound outputs to signal processing unit again, by signal processing unit the digital signal of sound is handled.
In each embodiment of the utility model, preferably, said signal gathering unit further comprises:
Signal processor, it comprises pre-amplifying module and/or gain control module and/or bandpass filtering modules block;
Said signal processor has input end that is connected to said sound transducer and the output terminal that is connected to said A/D converter.
Signal processor carries out Signal Pretreatment to gathering the voice signal that comes, for example preposition amplification, gain control, bandpass filtering, so that A/D converter is changed the simulating signal of sound, signal processor is handled the digital signal of sound.After the simulating signal pre-service of signal processor with sound, output to A/D converter, again the simulating signal of sound is changed by A/D converter.
In each embodiment of the utility model, preferably, said signal gathering unit further comprises:
Gather said time of vibration and said time of vibration sent to the vibration transducer of coupled said signal processing unit.
Vibration transducer is gathered the sound time of vibration of signal of building masonry wall.Through the record time of vibration, can access the interval time of the time of vibration of the signal of at every turn sounding, and calculate the sound frequency of signal of body of wall, draw the frequency that building masonry wall is impacted, thereby draw the pattern that building masonry wall is impacted.The time of vibration signal that collects is a digital signal, and vibration transducer outputs to signal processing unit with the time of vibration signal.
In each embodiment of the utility model, preferably, said vibration transducer is connected on the said building masonry wall.
Vibration transducer directly contacts with body of wall, owing to can directly experience the sounding and the vibration of body of wall, the signal that collects is more direct.
In each embodiment of the utility model, preferably, said signal processing unit further comprises:
Digital signal processor DSP; The input end of said DSP receives respectively from the voice signal of the said digital form of said A/D converter and said vibration transducer and said time of vibration, and the output terminal of said DSP is connected to or as the output terminal of said signal processing unit;
The frequency of the more said voice signal of said DSP or the sound intensity whether within voice signal frequency or sound intensity alarm range and/or said time of vibration whether within the time of vibration alarm range.
Digital signal processor DSP is the core of this anti-theft device, handle the digital signal of A/D converter and vibration transducer output, and processed steps comprises: 1. the digital signal of pair sound is carried out preparatory windowing, and signal is become approximate triangular wave; 2. read the vocal print characteristic, select parameter to read the characteristic of sound triangular wave, such as the ratio of amplitude, length and amplitude peak and length, and the signal position of being gathered and signal classified after the signal type that obtains; 3. vocal print statistic of classification is added up the characteristic of sound triangular wave, obtains similar voice signal, deletes inhomogeneous voice signal; 4. the pattern that is impacted according to the quantity of similar voice signal and the body of wall released by the time of vibration that collects is discerned judgement; 5. according to the judged result output alarm signal.
In each embodiment of the utility model, preferably, said DSP comprises:
Store the memory module of said voice signal frequency or sound intensity alarm range and/or time of vibration alarm range;
The comparison module that is connected with said memory module and the said voice signal frequency in acquired signal after the signal Processing and the said memory module or sound intensity alarm range and/or time of vibration alarm range are compared.
Memory module stored sound signal frequency or sound intensity alarm range and/or time of vibration alarm range, as alerting signal with reference to scope.The time of vibration alarm range is the alarm range of interval time of the time of vibration of the signal of at every turn sounding for body of wall, can calculate the body of wall frequency of signal of sounding from interval time, thereby obtain the pattern that body of wall is impacted.Comparison module compares the signal in the alarm range in the voice signal that collects and time of vibration and the memory module, as in reference to scope, then will report to the police.
In each embodiment of the utility model, preferably, said burglar alarm further comprises:
Acoustic control or lamp control alarm, it is connected to the output terminal of said signal processing unit.
Burglar alarm can directly be provided with alarm, and signal processing unit is made response by alarm after judging the result who whether reports to the police, and reports to the police.Alarm can be acoustic control or lamp control or other forms, and multiple choices are provided.
The utility model also provides a kind of guard against theft and alarm system, it is characterized in that, comprising:
Like aforesaid burglar alarm;
COM1;
Surveillance center;
Said burglar alarm is connected with said Surveillance center through said COM1.
Guard against theft and alarm system mainly is to be provided with Surveillance center to burglar alarm, and for example Surveillance center is a computer cluster.Burglar alarm is with the Signal Processing result, and the result that promptly whether need report to the police outputs to Surveillance center through COM1, is made the response of whether reporting to the police by Surveillance center.
In each embodiment of the utility model, preferably, said COM1 is connected with said DSP through serial communication interface RS232 chip.
Through a kind of burglar alarm that the utility model provides, can be monitored body of wall simultaneously by hit mode through voice signal and body of wall that body of wall sends, improve the warning performance.
In Fig. 1, a kind of burglar alarm comprises signal gathering unit 101, signal processing unit 102.Signal gathering unit 101 comprises sound transducer, signal processor, A/D converter and vibration transducer, and sound transducer, signal processor and A/D converter three are connected in order; Signal processing unit 102 comprises digital signal processor DSP.The output terminal of A/D converter and vibration transducer is connected with the input end of digital signal processor DSP simultaneously.
In Fig. 2, the treatment step of a kind of a kind of embodiment of burglar alarm comprises:
201: sound import, promptly use the sound transducer collected sound signal;
202: vibration detection; Promptly use vibration transducer to gather the sound time of vibration of signal of body of wall; Can calculate body of wall and sound interval time of time of vibration of signal at every turn through the sound time of vibration of signal of body of wall; Can calculate the body of wall frequency of signal of sounding from interval time, thereby obtain the pattern that body of wall is impacted;
203: Signal Pretreatment, voice signal is carried out Signal Pretreatment, be digital signal with it by analog signal conversion;
204: windowing in advance, voice signal is carried out preparatory windowing, signal is become approximate triangular wave;
205: read the vocal print characteristic, select parameter to read the characteristic of sound triangular wave, such as the ratio of amplitude, length and amplitude peak and length, and the signal position of being gathered and signal classified after the signal type that obtains;
206: the vocal print statistic of classification, the characteristic of sound triangular wave is added up, obtain similar voice signal, delete inhomogeneous voice signal;
207: the pattern according to the quantity and the body of wall of similar voice signal impacted is discerned judgement;
208: output alarm.
In Fig. 3, guard against theft and alarm system comprises that like aforesaid burglar alarm and Surveillance center burglar alarm is connected with Surveillance center through COM1.
Though the different wall sound of beating are arranged under the varying environment, even under same environment because the difference that defines, it also is different beating wall sound.But no matter be the identification of beating wall sound to any, its system architecture is roughly the same.
In each embodiment of the utility model, preferably, like the embodiment among Fig. 1, when using this anti-theft device to report to the police, sound transducer and vibration transducer are gathered respectively from the sound time of vibration of signal of the voice signal of body of wall and body of wall.Because the time of vibration that vibration transducer collects is a digital signal, can directly it be outputed to digital signal processor DSP.And voice signal is a simulating signal, need convert thereof into digital signal.Sound transducer outputs to signal processor with the simulating signal of sound, and signal processor carries out Signal Pretreatment to the simulating signal of gathering the sound that comes, and carries out preposition amplification, gain control, bandpass filtering.Signal processor outputs to A/D converter with the simulating signal of pretreated sound, and A/D converter becomes the analog signal conversion of sound the digital signal of sound again, and the digital signal of sound is outputed to digital signal processor DSP.
In each embodiment of the utility model, preferably, digital signal processor DSP at first adopts the windowing principle that the digital signal from the sound of A/D converter output is carried out pre-service, and it is become approximate triangular wave output.The parameter of DSP selecting again reads the characteristic of sound triangular wave, such as the ratio of amplitude, length and amplitude peak and length, and the signal position of being gathered and signal classified after the signal type that obtains.DSP adds up the characteristic of sound triangular wave, be placed on afterwards in the comparison module with memory module in the contrast signal contrast, obtain similar voice signal, delete inhomogeneous voice signal.DSP discerns judgement according to the pattern that the quantity of similar voice signal and the body of wall released by the time of vibration that collects are impacted.DSP outputs to acoustic control or lamp control alarm with judged result, and alarm is made warning; Perhaps DSP outputs to Surveillance center through COM1 with judged result, and Surveillance center makes warning.
In the enforcement of the utility model, environment sound source (background sound source) need be set, the environment sound source is typically provided to the sound under the laboratory environment (comprising the voice that electric fan, volume are less and the sound of some other experimental facilities).To under the environment sound source, preset simultaneously beat wall with reference to sound source, for example knock the sound of laboratory wall with iron hammer.When the voice signal that collects and contrast signal near the time, promptly the amplitude of voice signal and length near the time, think that the voice signal that collects is effective vocal print characteristic signal.
Voice signal is a stochastic process, just in short zone one by one, just can be similar to and regard as stably.Experiment showed, and to think that in the ordinary course of things the characteristic of voice signal is changeless basically in per 10～30ms short time interval.
The utility model also provides a kind of guard against theft and alarm system.In each embodiment of the utility model, preferably, guard against theft and alarm system comprises that like aforesaid burglar alarm and Surveillance center burglar alarm is connected with Surveillance center through COM1.The judged result whether burglar alarm will report to the police outputs to COM1, COM1 with result transmission to Surveillance center.COM1 is connected with DSP through special chip, and preferably, special chip is selected serial communication interface RS232 chip.
Burglar alarm that the utility model provides and guard against theft and alarm system also can be applicable to other safety-security areas except that building masonry wall, like building window, door and safety cabinet etc.
The various embodiment that the utility model provides can make up with any-mode as required each other, and the technical scheme that obtains through this combination is also in the scope of the utility model.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also comprises these changes and modification interior.
Claims (10)
1. a burglar alarm is characterized in that, comprising:
Collection is from the signal gathering unit of the time of vibration of the voice signal of building masonry wall and/or signal that said building masonry wall is sounded;
Whether the frequency of more said voice signal or the sound intensity is within voice signal frequency or sound intensity alarm range and/or the said time of vibration signal processing unit within the time of vibration alarm range whether;
The output terminal of said signal gathering unit is connected to the input end of said signal processing unit.
2. a kind of burglar alarm as claimed in claim 1 is characterized in that, said signal gathering unit comprises:
Gather the sound transducer of said voice signal;
Convert said voice signal into A/D converter that digital form sends to said signal processing unit;
The output terminal of said sound transducer is connected to the input end of said A/D converter.
3. burglar alarm as claimed in claim 2 is characterized in that, said signal gathering unit further comprises:
Signal processor, it comprises pre-amplifying module and/or gain control module and/or bandpass filtering modules block;
Said signal processor has input end that is connected to said sound transducer and the output terminal that is connected to said A/D converter.
4. like claim 2 or 3 described burglar alarms, it is characterized in that said signal gathering unit further comprises:
Gather said time of vibration and said time of vibration sent to the vibration transducer of coupled said signal processing unit.
5. burglar alarm as claimed in claim 4 is characterized in that,
Said vibration transducer is connected on the said building masonry wall.
6. burglar alarm as claimed in claim 5 is characterized in that, said signal processing unit further comprises:
Digital signal processor DSP; The input end of said DSP receives respectively from the voice signal of the said digital form of said A/D converter and said vibration transducer and said time of vibration, and the output terminal of said DSP is connected to or as the output terminal of said signal processing unit;
The frequency of the more said voice signal of said DSP or the sound intensity whether within voice signal frequency or sound intensity alarm range and/or said time of vibration whether within the time of vibration alarm range.
7. burglar alarm as claimed in claim 6 is characterized in that, said DSP comprises:
Store the memory module of said voice signal frequency or sound intensity alarm range and/or time of vibration alarm range;
The comparison module that is connected with said memory module and the said voice signal frequency in acquired signal after the signal Processing and the said memory module or sound intensity alarm range and/or time of vibration alarm range are compared.
8. burglar alarm as claimed in claim 7 is characterized in that, further comprises:
Acoustic control or lamp control alarm, it is connected to the output terminal of said signal processing unit.
9. a guard against theft and alarm system is characterized in that, comprising:
Like each described burglar alarm of claim 1 to 8;
COM1;
Surveillance center;
Said burglar alarm is connected with said Surveillance center through said COM1.
10. guard against theft and alarm system as claimed in claim 9 is characterized in that, said COM1 is connected with said DSP through the serial communication interface chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203385099U CN202217357U (en) | 2011-09-09 | 2011-09-09 | Anti-theft alarm device and anti-theft alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203385099U CN202217357U (en) | 2011-09-09 | 2011-09-09 | Anti-theft alarm device and anti-theft alarm system |
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| CN202217357U true CN202217357U (en) | 2012-05-09 |
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| CN2011203385099U Expired - Lifetime CN202217357U (en) | 2011-09-09 | 2011-09-09 | Anti-theft alarm device and anti-theft alarm system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207583A (en) * | 2013-03-26 | 2013-07-17 | 广东万安科技股份有限公司 | Method and equipment for monitoring wall damage |
| CN103366477A (en) * | 2013-06-26 | 2013-10-23 | 中国科学院声学研究所 | Monitoring equipment |
| CN104071119A (en) * | 2013-03-26 | 2014-10-01 | 大陆汽车电子(长春)有限公司 | Alarming method and device |
| CN105258791A (en) * | 2015-10-30 | 2016-01-20 | 广州市浩云安防科技股份有限公司 | Smashed detection method and system applied to ATM |
| CN105984432A (en) * | 2015-07-13 | 2016-10-05 | 乐卡汽车智能科技（北京）有限公司 | Alarming method and device |
| CN107102351A (en) * | 2017-05-15 | 2017-08-29 | 于丽娜 | A kind of sound-controlled apparatus detecting system and control method |
| CN108216118A (en) * | 2017-12-29 | 2018-06-29 | 南京云清普为通信科技有限公司 | A kind of improved automotive anti-theft alarm system |
| CN108399700A (en) * | 2018-01-31 | 2018-08-14 | 上海乐愚智能科技有限公司 | Theft preventing method and smart machine |
| CN110797025A (en) * | 2019-11-14 | 2020-02-14 | 杭州康锐电气工程有限公司 | Intelligent workshop control system |
| TWI760991B (en) * | 2020-12-24 | 2022-04-11 | 光寶科技股份有限公司 | Device and method for alarm detetion |
| CN114694365A (en) * | 2020-12-29 | 2022-07-01 | 光宝科技股份有限公司 | Alarm detection device and method |
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2011
- 2011-09-09 CN CN2011203385099U patent/CN202217357U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207583B (en) * | 2013-03-26 | 2016-01-20 | 广东万安科技股份有限公司 | A kind of method of wall damage monitoring and equipment thereof |
| CN104071119A (en) * | 2013-03-26 | 2014-10-01 | 大陆汽车电子(长春)有限公司 | Alarming method and device |
| CN103207583A (en) * | 2013-03-26 | 2013-07-17 | 广东万安科技股份有限公司 | Method and equipment for monitoring wall damage |
| CN103366477A (en) * | 2013-06-26 | 2013-10-23 | 中国科学院声学研究所 | Monitoring equipment |
| CN103366477B (en) * | 2013-06-26 | 2015-10-07 | 中国科学院声学研究所 | A kind of watch-dog |
| CN105984432A (en) * | 2015-07-13 | 2016-10-05 | 乐卡汽车智能科技（北京）有限公司 | Alarming method and device |
| CN105258791A (en) * | 2015-10-30 | 2016-01-20 | 广州市浩云安防科技股份有限公司 | Smashed detection method and system applied to ATM |
| CN107102351A (en) * | 2017-05-15 | 2017-08-29 | 于丽娜 | A kind of sound-controlled apparatus detecting system and control method |
| CN108216118A (en) * | 2017-12-29 | 2018-06-29 | 南京云清普为通信科技有限公司 | A kind of improved automotive anti-theft alarm system |
| CN108399700A (en) * | 2018-01-31 | 2018-08-14 | 上海乐愚智能科技有限公司 | Theft preventing method and smart machine |
| CN110797025A (en) * | 2019-11-14 | 2020-02-14 | 杭州康锐电气工程有限公司 | Intelligent workshop control system |
| TWI760991B (en) * | 2020-12-24 | 2022-04-11 | 光寶科技股份有限公司 | Device and method for alarm detetion |
| US11580841B2 (en) | 2020-12-24 | 2023-02-14 | Lite-On Technology Corporation | Device and method for alarm detection |
| CN114694365A (en) * | 2020-12-29 | 2022-07-01 | 光宝科技股份有限公司 | Alarm detection device and method |
| CN114694365B (en) * | 2020-12-29 | 2023-12-01 | 光宝科技股份有限公司 | Alarm detection device and method |
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Effective date of registration: 20131227 Address after: Pingtung 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park Road No. Patentee after: Zhuhai Comleader Information Science & Technology Co., Ltd. Address before: Tianhe District Guangyuan East Road, Guangzhou city Guangdong province 510665 No. 2193 room 902 Patentee before: Guangzhou SmartVision Information Technology Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Pingtung 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park Road No. Patentee after: Zhuhai Gao Ling information Polytron Technologies Inc Address before: Pingtung 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park Road No. Patentee before: Zhuhai Comleader Information Science & Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |