CN203423802U - Microphone testing device - Google Patents

Microphone testing device Download PDF

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Publication number
CN203423802U
CN203423802U CN201320393858.XU CN201320393858U CN203423802U CN 203423802 U CN203423802 U CN 203423802U CN 201320393858 U CN201320393858 U CN 201320393858U CN 203423802 U CN203423802 U CN 203423802U
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CN
China
Prior art keywords
microphone
shielded box
measured
testing apparatus
platen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320393858.XU
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Chinese (zh)
Inventor
姜基锡
金昶贤
邓小红
钱红兵
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Green Tech Solution Shenzhen Co ltd
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Green Tech Solution Shenzhen Co ltd
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Priority to CN201320393858.XU priority Critical patent/CN203423802U/en
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Publication of CN203423802U publication Critical patent/CN203423802U/en
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Abstract

The utility model is suitable for the field of testing devices and provides a microphone testing device. The microphone testing device includes a control cabinet. The microphone testing device also includes a shielding box arranged above the control cabinet and providing hermetic sound-insulating testing room for a to-be-tested microphone and a work table assembly arranged in the shielding box and used for receiving and testing the to-be-tested microphone. The shielding box is inside provided with a testing circuit module used for performing performance test of the to-be-tested microphone. The testing circuit module is in communicational connection with the control cabinet. The work table assembly is arranged in the shielding box in a sliding manner. A side wall of the shielding box is provided with a window allowing the work table assembly to slide out of the shielding box. According to the utility model, by arranging the hermetic sound-insulating testing room for the to-be-tested microphone above the control cabinet, microphone test can be guaranteed to be undisturbed. At the same time, the side wall of the shielding box is provided with the window allowing the work table assembly to slide out of the shielding box, so that convenience is made for workers to make preparation for testing.

Description

Microphone testing apparatus
Technical field
The utility model belongs to testing equipment field, relates in particular to a kind of microphone testing apparatus.
Background technology
After microphone completes, need to test its performance, for example, to the response of frequency, harmonic distortion etc., microphone testing apparatus of the prior art, its control cubicle and shielded box are normally kept apart, thereby floor space is larger, and seem comparatively in disorder; And the preparation before microphone testing apparatus of the prior art need to be tested conventionally in shielded box, and limited space in shielded box, be not easy to staff operate; Further, microphone testing apparatus of the prior art, because distance and the position relationship setting of microphone relative standard microphone to be measured are not quite reasonable, causes the result error of test larger.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of staff's of being convenient to operation and test result microphone testing apparatus is accurately provided.
The utility model is achieved in that a kind of microphone testing apparatus, comprise control cubicle, also comprise that being located at described control cubicle top tests the shielded box of occasion and be located at the table assembly for placing described microphone to be measured and it being tested in described shielded box for microphone to be measured provides sound insulaton, in described shielded box, be provided with the test circuit module for testing to described microphone to be measured, described test circuit module is connected with described control cubicle communication.
Particularly, described table assembly slides and is located in described shielded box, is provided with the guide rail sliding for described table assembly in described shielded box, and described shielded box sidewall offers one makes described table assembly skid off shielded box so that the window of staff's operation.
More specifically, described table assembly comprise place described microphone to be measured the workbench that it is tested, the workbench slide block being fixedly connected with described workbench, the end of being located at described workbench and with the suitable shielded box actuating doors of described shielded box window; Described workbench slide block and described guide rail are slidably connected.
Particularly, described table assembly also comprises the slide bar that end is connected with described shielded box actuating doors, and described slide bar is located at the bottom of described shielded box actuating doors, is provided with the slideway sliding for described slide bar in described shielded box.
More specifically, described slide bar is to form the piston rod of piston movement with described slideway.
Particularly, described workbench comprise place microphone to be measured platen, be located at the sound source assembly under described platen and be located at the standard microphone between described sound source assembly and platen, described circuit test module and described microphone to be measured and standard microphone are electrically connected.
More specifically, described sound source assembly comprises the loudspeaker box of loudspeaker, coated described loudspeaker, and described loudspeaker box top has an opening, and the pickup end of described standard microphone is positioned at the top end opening place of described loudspeaker box; Described platen is covered on described loudspeaker box top, described standard microphone is positioned at the joint of described loudspeaker box top and described platen, on described platen, there are two penetrable sound holes, described in two, penetrable sound hole is symmetrical in the axis of described standard microphone, and two pickups hole of described microphone to be measured is relative with penetrable sound hole described in two respectively; The pickup end of described standard microphone is below the region between penetrable sound hole described in two.
Particularly, described platen is provided with for locating the groove of described microphone to be measured.
More specifically, on described platen, be also provided with the pressure holding piece for fixing described microphone to be measured.
Particularly, described control cubicle comprises host computer, sound card and power amplifier.
The microphone testing apparatus that the utility model provides, it is by being slidedly arranged on test table in shielded box, and shielded box sidewall offers one can make workbench skid off the window outside shielded box, thereby during the preparation of staff before needs are tested, workbench can be skidded off outside shielded box, thus handled easily; On the other hand, in the utility model, symmetrical about the axis of standard microphone for two penetrable sound holes of sound source being provided to microphone to be measured on workbench, thereby can make the data of two pickup hole tests of microphone to be measured be consistent, further, the pickup end of standard microphone below the region between described two penetrable sound holes, thereby can make standard microphone provide reference accurately for microphone to be measured, reduce deviation, test result is more accurate.
Accompanying drawing explanation
Fig. 1 is the stereogram of the microphone testing apparatus that provides of the utility model embodiment;
Fig. 2 is the schematic diagram of the shielded box that provides of the utility model embodiment and table assembly assembling;
Fig. 3 is the schematic diagram of the table assembly that provides of the utility model embodiment and the assembling of shielded box base;
Fig. 4 is the schematic diagram of the shielded box base that provides of the utility model embodiment;
Fig. 5 is the schematic diagram of the workbench that provides of the utility model embodiment;
Fig. 6 is the schematic diagram for the A part in Fig. 5 that the utility model embodiment provides;
Fig. 7 is the standard microphone that provides of the utility model embodiment and the position relationship schematic diagram of loudspeaker box;
Fig. 8 is the schematic diagram of the platen of the workbench that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of microphone testing apparatus providing for the utility model embodiment, comprise control cubicle 1, also comprise that being located at control cubicle 1 top provides the shielded box 2 of sound insulaton test occasion and be located at the table assembly 3 for placing microphone to be measured and it being tested in shielded box 2 for microphone to be measured, in shielded box 2, be provided with the test circuit module for carrying out performance test to microphone to be measured, test circuit module is connected with control cubicle 1 communication.The microphone testing apparatus that the utility model provides, it is by providing a shielded box that microphone to be measured is placed in to shielded box build-in test, thereby can stop external interference, guarantee the accuracy of test result, meanwhile, shielded box is located at the top of control cubicle, has both facilitated staff to operate, also can reduce floor space, utilize fully space.
Particularly, as shown in Figure 2, shielded box 2 comprises base 21, casing 22 and is located at the case lid 23 on casing 22, in base 21, casing 22 and case lid 23, all there is the sound absorbing layer of for example, making with sound-absorbing material (foam), and being metal material, makes skin, thereby can be the test occasion that microphone to be measured provides a sealing, sound insulation, avoid external interference, guarantee the accuracy of test result; Table assembly 3 is slidedly arranged in shielded box 2, in shielded box 2, be provided with the guide rail 211 sliding for table assembly 3, on the sidewall of shielded box casing 22, offering one can make table assembly 3 skid off shielded box so that the window 220 of staff's operation, this kind of structural design can facilitate staff microphone to be measured to be carried out the operations such as clamping or debugging outside shielded box, thereby avoids the problem that operating space is awkward not in shielded box.
As shown in Figure 3, table assembly 3 comprise place microphone to be measured the workbench 31 that it is tested, the workbench slide block 32 being fixedly connected with workbench 31, the end of being located at workbench 31 and with the suitable shielded box actuating doors 33 of shielded box window; Guide rail 211 is located on the base 21 of shielded box, and workbench slide block 32 is slidably connected with guide rail 211.Workbench slide block 32 slides along guide rail 211, thereby drive workbench 31 and shielded box actuating doors 33 to move, thereby workbench 31 can skid off shielded box, facilitate staff to operate, after treating that staff carries out preparation, workbench 31 is slipped in shielded box, shielded box actuating doors 33 by with shielded box on window closed, thereby provide the test occasion of airtight sound insulation for test; For ease of operating personnel's operation, on shielded box actuating doors 33, can establish leader 330, thereby be convenient to staff's operation.
Further, referring to Fig. 3 and Fig. 4, because workbench 31 has certain weight, for it is firmly slidedly arranged on shielded box, also can on shielded box actuating doors 33, connect a slide bar 34, slide bar 34 is located at the bottom of shielded box actuating doors 33, shielded box base is provided with the slideway 35 sliding for slide bar 34, thereby workbench 31 can obtain dual support, be firmly connected on shielded box; Further, for making shielded box actuating doors and workbench 31 obtain more firm support, simultaneously, also make workbench 31 to slide more stably, a plurality of connected slide bar 34' can be set in the bottom of shielded box actuating doors 33, correspondingly, slideway 35' also arranges a plurality of, as shown in Figure 4.
Further, slide bar 34 can be the piston rod that forms piston movement with slideway, the inner chamber that slideway 35 is cylinder, thus workbench 31 slippages are in the operation of shielded box 2, can operate by the piston movement in control cylinder, to save manpower, and by control cylinder, control the slippage of workbench 31, its motion is more steady, gentle, controllability is good, can avoid dependent manual operation excessive and damage the parts on workbench or cause the problems such as loose contact of circuit test inside modules circuit.
Particularly, as shown in Figure 5 and Figure 6, workbench 31 comprises the platen 311 of placing microphone 5 to be measured, be located at the sound source assembly 312 under platen 311 and be located at sound source assembly 312 and platen 311 between standard microphone 313, sound source assembly 312 provides necessary sound source for detecting, standard microphone 313 provides contrast foundation for testing, by the data difference between microphone to be measured and standard microphone, thereby determine that whether microphone to be measured is qualified, described electric circuit inspection module and microphone to be measured 5 and standard microphone 313 are electrically connected, thereby the data that detect are reached to control cubicle, to contrast, draw detection data,
Particularly, as shown in Fig. 5 and Fig. 7, sound source assembly 312 comprises the loudspeaker box 3121 of loudspeaker (not shown), coated loudspeaker, and loudspeaker box 3121 is coated by described loudspeaker, and to avoid outer bound pair, it produces interference, affects test result; Loudspeaker box 3121 tops have an opening 3121a, and the pickup end 3131 of standard microphone 313 is positioned at the top end opening 3121a place of loudspeaker box, thereby standard microphone 313 can obtain the needed sound source of test; Platen 311 is covered on loudspeaker box 3121 tops, and standard microphone 313 is positioned at the joint of loudspeaker box 3121 tops and platen 311, thereby when standard microphone receives the required sound source of test, avoids other local sound that leaks of loudspeaker box top end opening 3121a; As shown in Figure 6 and Figure 8, on platen 311, there are two penetrable sound holes 3112, two penetrable sound holes 3112 are symmetrical about the axis of standard microphone 313, during test, two pickups hole 51 of microphone 5 to be measured is relative with two penetrable sound holes 3112 respectively, two measured data in pickup hole that like this, can guarantee microphone to be measured are consistent; For avoiding the test data deviation of microphone to be measured and standard microphone too large, be not easy to contrast, the pickup end 3131 of standard microphone 313 is advisable below the region between two penetrable sound holes 3112.
Further, as shown in Figure 6, for making microphone to be measured keep a fixing placement position on test platen, thereby obtain reliable test data, platen 311 is provided with for locating the groove 3113 of microphone to be measured.
Further, as shown in Figure 5, for the pickup hole 51 of microphone 5 to be measured is fitted tightly with the penetrable sound hole on platen 311, obtain the necessary sound source of test, meanwhile, also for making test result accurately and reliably, on platen 311, be also provided with the pressure holding piece 3114 for fixing microphone to be measured, pressure holding piece 3114 specifically can be a rotating compressing tablet, and it is pressed in microphone to be measured on the panel of platen 311, thereby it is fitted tightly on platen.
Particularly, control cubicle 1 comprises host computer, sound card and power amplifier etc., its by the data of passing back on workbench collect, arrange, to when processing, thereby finally obtain test result.
The microphone testing apparatus that the utility model provides its roughly the course of work be:
A, microphone 5 to be measured is placed on to the relevant position of the platen 311 of workbench 31, with pressure holding piece 3114, is pushed down;
B, close shielded box actuating doors 33;
C, standard microphone 313 is calibrated;
After d, the computer detection being connected with control cubicle communication are closed to shielded box actuating doors 33, start test;
E, computer software are controlled sound card and are sent pumping signal, amplify rear drive loudspeaker and sound, as the measuring sound source of microphone to be measured by power amplifier;
F, microphone to be measured are converted into the signal of telecommunication by the voice signal receiving, and by circuit, are transferred to test circuit module, and meanwhile, test circuit module by the signal of two microphones on test product separately, carries out, after respective handling, by sound card, being transferred to computer;
G, connecting computer receive that signal Hou You testing software processes signal, and the test data of the test data of microphone to be measured and standard microphone is contrasted, and obtain the test curve of the aspects such as frequency response, harmonic distortion, phase place;
H, testing software automatic decision test result, test data and the results are shown on computer monitor, test completes.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection range of the present utility model.

Claims (10)

1. a microphone testing apparatus, comprise control cubicle, it is characterized in that: also comprise that being located at described control cubicle top tests the shielded box of occasion and be located at the table assembly for placing described microphone to be measured and it being tested in described shielded box for microphone to be measured provides sound insulaton, in described shielded box, be provided with the test circuit module for testing to described microphone to be measured, described test circuit module is connected with described control cubicle communication.
2. microphone testing apparatus as claimed in claim 1, it is characterized in that: described table assembly slides and is located in described shielded box, in described shielded box, be provided with the guide rail sliding for described table assembly, described shielded box sidewall offers one makes described table assembly skid off shielded box so that the window of staff's operation.
3. microphone testing apparatus as claimed in claim 2, is characterized in that: described table assembly comprise place described microphone to be measured the workbench that it is tested, the workbench slide block being fixedly connected with described workbench, the end of being located at described workbench and with the suitable shielded box actuating doors of described shielded box window; Described workbench slide block and described guide rail are slidably connected.
4. microphone testing apparatus as claimed in claim 3, it is characterized in that: described table assembly also comprises the slide bar that end is connected with described shielded box actuating doors, described slide bar is located at the bottom of described shielded box actuating doors, is provided with the slideway sliding for described slide bar in described shielded box.
5. microphone testing apparatus as claimed in claim 4, is characterized in that: described slide bar is the piston rod with described slideway formation piston movement.
6. microphone testing apparatus as claimed in claim 3, it is characterized in that: described workbench comprise place microphone to be measured platen, be located at the sound source assembly under described platen and be located at the standard microphone between described sound source assembly and platen, described circuit test module and described microphone to be measured and standard microphone are electrically connected.
7. microphone testing apparatus as claimed in claim 6, it is characterized in that: described sound source assembly comprises the loudspeaker box of loudspeaker, coated described loudspeaker, described loudspeaker box top has an opening, and the pickup end of described standard microphone is positioned at the top end opening place of described loudspeaker box; Described platen is covered on described loudspeaker box top, described standard microphone is positioned at the joint of described loudspeaker box top and described platen, on described platen, there are two penetrable sound holes, described in two, penetrable sound hole is symmetrical in the axis of described standard microphone, and two pickups hole of described microphone to be measured is relative with penetrable sound hole described in two respectively; The pickup end of described standard microphone is below the region between penetrable sound hole described in two.
8. microphone testing apparatus as claimed in claim 6, is characterized in that: described platen is provided with for locating the groove of described microphone to be measured.
9. microphone testing apparatus as claimed in claim 6, is characterized in that: on described platen, be also provided with the pressure holding piece for fixing described microphone to be measured.
10. the microphone testing apparatus as described in claim 1-9 any one, is characterized in that: described control cubicle comprises host computer, sound card and power amplifier.
CN201320393858.XU 2013-07-03 2013-07-03 Microphone testing device Expired - Lifetime CN203423802U (en)

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Application Number Priority Date Filing Date Title
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104936124A (en) * 2015-06-11 2015-09-23 科瑞自动化技术(苏州)有限公司 Mounting sealing test device for microphone of notebook computer
CN104954966A (en) * 2015-06-30 2015-09-30 歌尔声学股份有限公司 Microphone sensitivity test tool and system
CN105516873A (en) * 2015-09-25 2016-04-20 华晨汽车集团控股有限公司 Device and method for testing sensitivity and frequency response curve of microphone
CN106303879A (en) * 2015-05-28 2017-01-04 钰太芯微电子科技(上海)有限公司 A kind of detection device based on time-domain analysis and detection method
CN106535075A (en) * 2016-11-10 2017-03-22 深圳市燕麦科技股份有限公司 Microphone sound leak test device and test method thereof
CN106686512A (en) * 2017-01-18 2017-05-17 歌尔股份有限公司 Audio test unit for microphones of wearable electronics
CN107613446A (en) * 2017-09-27 2018-01-19 惠州Tcl移动通信有限公司 A kind of detection method for preventing microphone whistle, mobile terminal and storage medium
CN109246572A (en) * 2018-09-25 2019-01-18 上海金东唐科技有限公司 A kind of frequency sound test smelting tool and microphone parameters test macro
CN109391893A (en) * 2017-08-10 2019-02-26 百辰光电股份有限公司 Microphone test equipment and its method
CN109474880A (en) * 2018-12-28 2019-03-15 深圳市智立方自动化设备有限公司 The sound proof box of loudspeaker acoustical testing
CN109640216A (en) * 2018-12-19 2019-04-16 珠海市精实测控技术有限公司 A kind of novel acoustic sound proof box
CN109707261A (en) * 2018-12-21 2019-05-03 青岛精测智能技术有限公司 A kind of finger automatic switch door gear
CN109712603A (en) * 2018-12-19 2019-05-03 珠海市精实测控技术有限公司 A kind of automation shielded box
CN110290452A (en) * 2019-05-17 2019-09-27 深圳康佳电子科技有限公司 A kind of intelligent television end microphone mould group acoustical testing shielded box
CN110996241A (en) * 2019-12-12 2020-04-10 苏州市运泰利自动化设备有限公司 Microphone testing device
CN111050268A (en) * 2020-01-16 2020-04-21 苏州思必驰信息科技有限公司 Phase testing system, method, device, equipment and medium of microphone array
CN111741421A (en) * 2020-05-19 2020-10-02 广州立景创新科技有限公司 Microphone automatic test system
CN112770247A (en) * 2021-02-07 2021-05-07 深圳市鸿南电子有限公司 Microphone sensitivity automatic calibration device and method
CN114885268A (en) * 2022-05-07 2022-08-09 河北初光汽车部件有限公司 Vehicle-mounted microphone detection device

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106303879A (en) * 2015-05-28 2017-01-04 钰太芯微电子科技(上海)有限公司 A kind of detection device based on time-domain analysis and detection method
CN106303879B (en) * 2015-05-28 2024-01-16 钰太芯微电子科技(上海)有限公司 Detection device and detection method based on time domain analysis
CN104936124A (en) * 2015-06-11 2015-09-23 科瑞自动化技术(苏州)有限公司 Mounting sealing test device for microphone of notebook computer
CN104954966A (en) * 2015-06-30 2015-09-30 歌尔声学股份有限公司 Microphone sensitivity test tool and system
CN104954966B (en) * 2015-06-30 2018-10-12 歌尔股份有限公司 A kind of sensitivity of microphone test fixture and system
CN105516873A (en) * 2015-09-25 2016-04-20 华晨汽车集团控股有限公司 Device and method for testing sensitivity and frequency response curve of microphone
CN106535075A (en) * 2016-11-10 2017-03-22 深圳市燕麦科技股份有限公司 Microphone sound leak test device and test method thereof
CN106686512B (en) * 2017-01-18 2020-04-03 歌尔股份有限公司 Audio testing device for microphone of wearable electronic product
CN106686512A (en) * 2017-01-18 2017-05-17 歌尔股份有限公司 Audio test unit for microphones of wearable electronics
CN109391893A (en) * 2017-08-10 2019-02-26 百辰光电股份有限公司 Microphone test equipment and its method
CN107613446A (en) * 2017-09-27 2018-01-19 惠州Tcl移动通信有限公司 A kind of detection method for preventing microphone whistle, mobile terminal and storage medium
CN109246572A (en) * 2018-09-25 2019-01-18 上海金东唐科技有限公司 A kind of frequency sound test smelting tool and microphone parameters test macro
CN109640216A (en) * 2018-12-19 2019-04-16 珠海市精实测控技术有限公司 A kind of novel acoustic sound proof box
CN109712603A (en) * 2018-12-19 2019-05-03 珠海市精实测控技术有限公司 A kind of automation shielded box
CN109707261A (en) * 2018-12-21 2019-05-03 青岛精测智能技术有限公司 A kind of finger automatic switch door gear
CN109474880A (en) * 2018-12-28 2019-03-15 深圳市智立方自动化设备有限公司 The sound proof box of loudspeaker acoustical testing
CN110290452A (en) * 2019-05-17 2019-09-27 深圳康佳电子科技有限公司 A kind of intelligent television end microphone mould group acoustical testing shielded box
CN110290452B (en) * 2019-05-17 2021-04-27 深圳康佳电子科技有限公司 Acoustic test shielding box for microphone module at intelligent television end
CN110996241A (en) * 2019-12-12 2020-04-10 苏州市运泰利自动化设备有限公司 Microphone testing device
CN111050268A (en) * 2020-01-16 2020-04-21 苏州思必驰信息科技有限公司 Phase testing system, method, device, equipment and medium of microphone array
CN111741421A (en) * 2020-05-19 2020-10-02 广州立景创新科技有限公司 Microphone automatic test system
CN112770247A (en) * 2021-02-07 2021-05-07 深圳市鸿南电子有限公司 Microphone sensitivity automatic calibration device and method
CN112770247B (en) * 2021-02-07 2022-04-01 深圳市鸿南电子有限公司 Microphone sensitivity automatic calibration device and method
CN114885268A (en) * 2022-05-07 2022-08-09 河北初光汽车部件有限公司 Vehicle-mounted microphone detection device

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Address after: Jiaxin Technology Park 523000 Guangdong province Dongguan City Cheonggye three Jinlong Industrial District 1 Building 3 floor

Patentee after: GREEN TECH SOLUTION (SHENZHEN) CO.,LTD.

Address before: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Community Li Si Da BU Xiang Road No. 286 honland Eagle Science Park E902

Patentee before: GREEN TECH SOLUTION (SHENZHEN) CO.,LTD.

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Granted publication date: 20140205