CN205071294U - Headphone structure circuit, earphone, audio output device and display device - Google Patents
Headphone structure circuit, earphone, audio output device and display device Download PDFInfo
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- CN205071294U CN205071294U CN201520806429.XU CN201520806429U CN205071294U CN 205071294 U CN205071294 U CN 205071294U CN 201520806429 U CN201520806429 U CN 201520806429U CN 205071294 U CN205071294 U CN 205071294U
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Abstract
The utility model provides a headphone structure circuit, earphone, audio output device and display device. According to the utility model discloses a headphone structure circuit includes: detection module for detect the state of wearing of earphone, and export the detection data that are used for instructing the earphone state, and judge module for according to the detection data that come from detection module, judge whether the earphone is in the state of wearing to output is used for instructing whether the earphone is in the control signal of the state of wearing.
Description
Technical field
The utility model relates to electronic equipment, in particular to earphone control circuit, earphone, audio output device, display unit, headset control method and audio signal output mode changing method.
Background technology
Such as the electronic equipment of TV, notebook computer, panel computer, portable mobile apparatus etc. generally all has earphone jack.Detect by carrying out plug to earphone jack, judged whether whether earphone plugged earphone jack or earphone are pulled out.When not having earphone plugged earphone jack, these electronic equipments carry out output audio signal by the loud speaker be positioned on electronic equipment.When there being earphone plugged earphone jack, these electronic equipments carry out output audio signal by earphone.
Popularizing nowadays along with low profile electronic equipment, the earphone jack of these low profile electronic equipment becomes more and more less, makes current earphone more and more be not easy to insert the earphone jack of these low profile electronic equipment.And user uses during earphone all to be needed to carry out update at every turn, do not need all to need during earphone to carry out extracting operation, bring very large inconvenience to the use of user.
Utility model content
In order to solve the problems of the technologies described above, the utility model proposes a kind of earphone control circuit, comprising the earphone of described earphone control circuit, the audio output device being provided with described earphone, the display unit comprising described audio output device, headset control method and audio signal output mode changing method.
Present applicant proposes a kind of earphone control circuit, comprising:
Detection module, for the wearing state of Test earphone, and exports the detection data being used to indicate earphone state; And judge module, for according to the detection data carrying out self-detection module, judge whether described earphone is in wearing state, and output is used to indicate the control signal whether described earphone is in wearing state.
According to an embodiment, described detection module comprises 3-axis acceleration sensor.
According to an embodiment, described detection module comprises temperature sensor or pressure sensor.
According to an embodiment, described judge module comprises AD converter, for the detection signal received from described detection module is converted to digital signal.
According to an embodiment, described judge module comprises control signal output unit, whether is in the control signal of wearing state for exporting the described earphone of instruction.
According to an embodiment, described earphone control circuit also comprises switch module, for earphone control circuit described in On/Off.When opening described earphone control circuit, described judge module exports the control signal whether described earphone of instruction is in wearing state.When closing described earphone control circuit, described judge module exports the control signal that the described earphone of instruction is in wearing state all the time.
This application provides a kind of earphone, comprising: input module, for receiving the signal from outside input; Output module, for output audio signal; And the earphone control circuit as described in aforementioned any embodiment.
This application provides a kind of audio output device being provided with earphone as above, comprising: power module; Control module, for the control signal output switching signal of basis from described earphone; Output module, for the switching signal exported according to described control module, switches between the first audio output mode and the second audio output mode.
According to an embodiment, described first audio output mode is by loud speaker output audio signal, and described second audio output mode is by earphone output audio signal.
According to an embodiment, described control module comprises switching circuit, for exporting the switching signal of instruction by loud speaker output audio signal when the control signal from earphone indicates the first audio output mode, and export the switching signal of instruction by earphone output audio signal when the control signal from earphone indicates the second audio output mode.
The application also provides a kind of display unit, comprises aforementioned audio output device.
Alternatively, described display unit also comprises the earphone removably connected with described audio output device;
Wherein, described earphone is aforementioned headset.
The application also provides a kind of headset control method, comprising:
The wearing state of Test earphone;
Export the detection data being used to indicate earphone state;
Judge whether described earphone is in wearing state according to described detection data; And
Export and be used to indicate the control signal whether described earphone is in wearing state, switch audio output mode to make the audio output device receiving described control signal according to described control signal.
The application also provides a kind of audio signal output mode changing method, comprising:
What receive earphone transmission is used to indicate the control signal whether described earphone is in wearing state;
Audio output mode is switched according to described control signal.
Alternatively, switch audio output mode according to described control signal, specifically comprise:
When described control signal is the control signal that instruction earphone is in non-wearing state, then determine that present video output mode is the first audio output mode by loud speaker output audio signal;
When described control signal is the control signal that instruction earphone is in wearing state, then determine that present video output mode is the second audio output mode by earphone output audio signal.
The loud speaker output switching between the two of audio frequency output and the audio output device realizing earphone under the state on audio output device can be inserted according to earphone of the present utility model always, and do not need to need to carry out as traditional earphone the switching that plug operation realizes two kinds of way of outputs, thus avoid the operation of plug repeatedly of earphone.Solve the problem that low profile electronic equipment is not easy plugged earphone like this.The utility model according to detect user whether wear headphones control the output of audio output device to earphone and loud speaker, improve the convenience that user uses.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, above and other aspect, other advantage of characteristic sum clearly will be understood, wherein:
Fig. 1 is the schematic diagram of the audio output device with earphone jack;
Fig. 2 is the schematic block diagram according to earphone control circuit of the present utility model;
Fig. 3 is the schematic diagram according to earphone of the present utility model;
Fig. 4 is the schematic diagram of the headset plug of earphone;
Fig. 5 is the schematic diagram of headset type;
Fig. 6 is the schematic diagram according to audio output device of the present utility model;
Fig. 7 is the flow chart according to headset control method of the present utility model; And
Fig. 8 is the flow chart according to audio signal output mode changing method of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in each embodiment of the utility model is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the application, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the schematic diagram of the audio output device with earphone jack.
As shown in Figure 1, audio output device comprises earphone jack 5, SOC (system on a chip) (SoC) circuit 1, power circuit 2, audio digital signals process/amplifying circuit 3 and speaker circuit 4.Whether audio output device has the plug of earphone to detect to earphone jack 5.When earphone is inserted in earphone jack 5, testing result (earpiece/speaker control signal) according to the insertion of instruction earphone is high, audio signal is outputted to earphone jack 5 by SOC (system on a chip) (SoC) circuit 1 of audio output device, and stops speaker circuit 4 output audio signal.When earphone is extracted from earphone jack 5, according to the testing result (earpiece/speaker control signal) indicating earphone to extract for low, audio signal is outputted to speaker circuit 4 by audio digital signals process/amplifying circuit 3 by SOC (system on a chip) (SoC) circuit 1 of audio output device, and stops by earphone jack 5 output audio signal.
User uses during earphone at every turn on traditional audio output device all to be needed to carry out update, does not need all to need during earphone to carry out extracting operation, and this brings very large inconvenience to the use of user.And along with popularizing of low profile electronic equipment, the earphone jack of audio output apparatus becomes more and more less, makes current earphone more and more be not easy in plugged earphone jack.
Fig. 2 is the schematic block diagram according to earphone control circuit of the present utility model.As shown in Figure 2, earphone control circuit comprises:
Detection module 21, for the wearing state of Test earphone, and exports the detection data being used to indicate earphone state;
Judge module 22, the detection data of self-detection module are carried out for basis, judge that described earphone is current and whether be in wearing state, export and be used to indicate the control signal whether described earphone is in wearing state, namely when judging that earphone is in wearing state, exporting the first control signal, when judging that earphone is not in wearing state, exporting the second control signal.
Detection module 21 comprises transducer, for detecting the data relevant to the wearing state of earphone.By the data that detection module detects, can know whether earphone is in wearing state.Detection module 21 can comprise 3-axis acceleration sensor.Alternatively, detection module 21 also can comprise temperature sensor, pressure sensor etc.
When detection module 21 comprises 3-axis acceleration sensor, 3-axis acceleration sensor can adopt the forms such as pressure resistance type, piezoelectric type and condenser type, its acceleration produced can respectively with resistance, voltage and electric capacity be changing into ratio, and to be gathered by corresponding amplification and filter circuit.Acceleration is space vector, utilizes 3-axis acceleration sensor can record component in three reference axis on the one hand, accurately to understand the motion state of object; On the other hand, only have application 3-axis acceleration sensor to carry out sense acceleration signal just to detect under the occasion of not knowing movement direction of object in advance.3-axis acceleration sensor, by detecting the component in XYZ tri-reference axis, can sense the motion of earphone along with the head of user exactly, therefore can obtain the data relevant to the wearing state of earphone.3-axis acceleration sensor has the little and lightweight feature of volume, can measurement space acceleration, can reflect the kinetic property of object all-sidedly and accurately.
In addition, other forms of transducer can also be adopted to sense the data relevant to the wearing state of earphone.Such as, can be sensed the temperature of earphone periphery by temperature sensor, when skin (or insert earhole) close to human body, the temperature of earphone periphery can remain within specific temperature range.Again such as, for headphone, needing when wearing certain pressure with the head making it remain on user, therefore can sense the data relevant to the wearing state of earphone by pressure sensor.
Certainly, detection module 21 can be configured with dissimilar transducer simultaneously, and deploy switch device, starts some transducers carry out Test earphone and whether be in wearing state in certain moment.
Judge module 22 can comprise AD converter 221, for the detection signal received from described detection module is converted to digital signal.Judge module can also comprise control signal output unit 222, whether is in the control signal of wearing state for exporting the described earphone of instruction.
3-axis acceleration sensor is comprised for detection module 21, judge module 22 can convert digital signal by AD converter 221 to by from the component in XYZ tri-reference axis of 3-axis acceleration sensor, digital signal after conversion and the data about specific motor pattern are compared, when the result compared show data that 3-axis acceleration sensor senses indicate earphone be in wearing state time, control signal output unit 222 can export the control signal that this earphone of instruction is in wearing state.
Earphone control circuit can also comprise switch module 23, for On/Off earphone control circuit.When opening earphone control circuit, judge module 22 exports the control signal whether described earphone of instruction is in wearing state.When closing earphone control circuit, judge module 22 exports the control signal that the described earphone of instruction is in wearing state all the time.The wear headphones when user is at recumbency, detection module 21 may be examined and not measure earphone and whether be in wearing state, at this moment the switch module 23 in earphone control circuit is arranged to the state of closing, just can by according to earphone of the present utility model as common earphone.
According to earphone of the present utility model, by detecting the actual wear state of earphone, and sending control signal when earphone is in wearing state, notifying that the audio output device be connected with this earphone is by this earphone output audio signal.In addition, when earphone is not in wearing state, still by the loud speaker output audio signal of audio output device, and without the need to extracting earphone from audio output device.Be according to earphone difference with the prior art of the present utility model, the plug operation by judging earphone switched the way of output and changes into by judging that the actual wear state of earphone switches the way of output, and then avoid the operation of plug repeatedly of earphone.
Fig. 3 is the schematic diagram according to earphone of the present utility model.Earphone can comprise input module, for receiving the signal from audio output device input; Output module, for output audio signal; And according to earphone control circuit of the present utility model.
As input module, earphone can comprise the headset plug of earphone jack inserting audio output device, and it can receive the audio signal (Left signal and Right signal) of left and right acoustic channels, GND signal and power supply signal (VCC) from audio output device.In addition, headset plug can also transmit to audio output device the control signal (Control signal) exported by the control signal output unit of the judge module of earphone control circuit.
As shown in Figure 3, the detection module of earphone control circuit can comprise 3-axis acceleration sensor (3 axle acceleration sensor).Judge module can comprise AD converter.Switch module can comprise mains switch and power LED, and when mains switch opens earphone control circuit, power LED is lighted, and judge module exports the control signal whether described earphone of instruction is in wearing state.When mains switch closes earphone control circuit, power LED extinguishes, and judge module exports the control signal that the described earphone of instruction is in wearing state all the time.
In prior art, the headset plug of main flow is 3 pole types, as shown in the earphone a in Fig. 4, wherein the 1. contact (mark 1 in accompanying drawing) connect left channel audio signal, the 2. contact (mark 2 in accompanying drawing) connect right channel audio signal, the 3. contact (mark 3 in accompanying drawing) connect GND signal.Headset plug can also be the 4 pole types of band MIC, as shown in the earphone b in Fig. 4.The headset plug of 4 pole types can be divided into two kinds, one is CTIA(CellularTelephoneIndustryAssociation), wherein the 1. contact connect left channel audio signal, the 2. contact connect right channel audio signal, the 3. contact connect GND signal, the 4. contact (mark 4 in accompanying drawing) connect MIC; Another kind is OMTP (OpenMobileTerminalPlatform), wherein the 1. contact connect left channel audio signal, the 2. contact connect right channel audio signal, the 3. contact connect MIC, the 4. contact connect GND signal.
Owing to needing the control signal exporting the wearing state representing earphone, therefore can be 5 pole types according to the headset plug of earphone of the present utility model, earphone c as shown in Figure 4, wherein the 1. contact connect left channel audio signal (Left signal), the 2. contact connect right channel audio signal (Right signal), the 3. contact connect GND signal, the 4. contact export control signal (Control signal), the 5. contact (mark 5 in accompanying drawing) connect power supply signal (Vcc).The wiring of the headset plug of above-mentioned 3 poles, 4 poles, 5 pole types is as shown in table 1.
The wiring of the headset plug of table 1:3 pole, 4 poles, 5 pole types
。
As can be seen from Table 1, can the headset plug of compatible 3 pole types of the prior art and 4 pole CTIA types according to earphone of the present utility model, but when using these headset plugs of the prior art, can not export the control signal of the wearing state of instruction earphone, therefore it can only be used as common earphone.
Can be as the headphone a in Fig. 5 according to earphone of the present utility model; Can also be as the PlayGear Stealth b in Fig. 5.
Fig. 6 is the schematic diagram according to audio output device of the present utility model.5 polar form earphone jacks, SOC (system on a chip), power supply, audio digital signals process/amplifying circuit, loud speaker and switching circuit is comprised according to audio output device of the present utility model.
As shown in Figure 6, earphone jack 65, SOC (system on a chip) (SoC) circuit 61, power circuit 62, audio digital signals process/amplifying circuit 63, speaker circuit 64 and switching circuit 66 is comprised according to audio output device of the present utility model.Whether audio output device not only has the plug of earphone to detect to earphone jack 65, also receives the control signal from earphone.When being inserted in earphone jack 65 according to earphone of the present utility model, audio output device will receive the control signal from earphone, and whether be in the control signal generation earpiece/speaker control signal of wearing state according to instruction earphone.When the control signal instruction earphone from earphone is in wearing state, switching circuit 66 conducting, the earpiece/speaker control signal instruction generated is by earphone output audio signal, audio signal is outputted to earphone jack 65 by SOC (system on a chip) (SoC) circuit 61 of audio output device, and stops speaker circuit 64 output audio signal.When the control signal instruction earphone from earphone is not in wearing state, switching circuit ends, the earpiece/speaker control signal instruction generated is by loud speaker output audio signal, audio signal is outputted to speaker circuit 64 by audio digital signals process/amplifying circuit 63 by SOC (system on a chip) (SoC) circuit 61 of audio output device, and stops by earphone jack 65 output audio signal.
According to earphone of the present utility model, by detecting the actual wear state of earphone, and sending control signal when earphone is in wearing state, notifying that the audio output device be connected with this earphone is by this earphone output audio signal.In addition, when earphone is not in wearing state, still by the loud speaker output audio signal of audio output device, and without the need to extracting earphone from audio output device.According to audio output device of the present utility model by judging that the plug of earphone operates the control signal switching the actual wear state that the way of output is changed into by indicating earphone and switches the way of output, and then avoid the operation of plug repeatedly of earphone, thus solve the problem that low profile electronic equipment is not easy plugged earphone, improve the convenience that user uses.
In addition, when SOC (system on a chip) (SoC) circuit 61 output mute (Mute) signal of audio output device, will stop from earphone and loud speaker output audio signal.
Fig. 7 is the flow chart according to headset control method of the present utility model.As shown in Figure 7, headset control method comprises: step 701, the wearing state of Test earphone; Step 702, exports the detection data being used to indicate earphone state; According to described detection data, step 703, judges whether described earphone is in wearing state; And step 704, export and be used to indicate the control signal whether described earphone is in wearing state.
In step 701, the data relevant to the wearing state of earphone can be detected by transducer.Transducer can comprise 3-axis acceleration sensor.Alternatively, transducer can also comprise temperature sensor, pressure sensor etc.In a step 702, transducer exports the instruction data relevant to the wearing state of earphone.In step 703, judge whether earphone is in wearing state according to the data carrying out sensor.Such as, digital signal can be become by the data transaction of in the future sensor, and the digital signal after conversion is compared with the data about specific motor pattern judge whether earphone is in wearing state.In step 704, according to the judged result of step 703, export and be used to indicate the control signal whether described earphone is in wearing state.
Fig. 8 is the flow chart according to audio signal output mode changing method of the present utility model.As shown in Figure 8, comprise: step 801 according to audio signal output mode changing method of the present utility model, what receive earphone transmission is used to indicate the control signal whether described earphone is in wearing state; And step 802, switch audio output mode according to described control signal.
Particularly, the step switching audio output mode according to described control signal can comprise: when described control signal is the control signal that instruction earphone is in non-wearing state, then determine that present video output mode is the first audio output mode by loud speaker output audio signal; When described control signal is the control signal that instruction earphone is in wearing state, then determine that present video output mode is the second audio output mode by earphone output audio signal.
Comprise according to audio output device of the present utility model according to display unit of the present utility model.Can also comprise the earphone removably connected with described audio output device according to display unit of the present utility model, described earphone is according to earphone of the present utility model.
Display unit can be any product or parts with Presentation Function, such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator etc., or can be the display floater for such as wearable display device, Medical Devices etc.Especially comprise thin-type display device according to display unit of the present utility model, because the earphone jack of these thin-type display devices becomes more and more less, make current earphone more and more be not easy to insert the earphone jack of these thin-type display devices.
Obviously, those skilled in the art can carry out various modifications and variations to the utility model embodiment and not depart from spirit and scope of the present utility model.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these amendment and modification.
Claims (12)
1. an earphone control circuit, is characterized in that, comprising:
Detection module, for the wearing state of Test earphone, and exports the detection data being used to indicate earphone state; And
Judge module, for according to the detection data carrying out self-detection module, judges whether described earphone is in wearing state, and output is used to indicate the control signal whether described earphone is in wearing state.
2. earphone control circuit as claimed in claim 1, is characterized in that,
Described detection module comprises 3-axis acceleration sensor.
3. earphone control circuit as claimed in claim 1, it is characterized in that, described detection module comprises temperature sensor or pressure sensor.
4. earphone control circuit as claimed in claim 1, it is characterized in that, described judge module comprises AD converter, for the detection signal received from described detection module is converted to digital signal.
5. earphone control circuit as claimed in claim 1, it is characterized in that, described judge module comprises control signal output unit, whether is in the control signal of wearing state for exporting the described earphone of instruction.
6. earphone control circuit as claimed in claim 1, is characterized in that, also comprise switch module, for earphone control circuit described in On/Off,
When opening described earphone control circuit, described judge module exports the control signal whether described earphone of instruction is in wearing state,
When closing described earphone control circuit, described judge module exports the control signal that the described earphone of instruction is in wearing state all the time.
7. an earphone, is characterized in that, comprising:
Input module, for receiving the signal from outside input;
Output module, for output audio signal; And
Earphone control circuit as described in claim arbitrary in claim 1-6.
8. an audio output device for earphone as claimed in claim 7 is installed, it is characterized in that, comprising:
Control module, for the control signal output switching signal of basis from described earphone;
Output module, for the switching signal exported according to described control module, switches between the first audio output mode and the second audio output mode.
9. audio output device as claimed in claim 8, it is characterized in that, described first audio output mode is by loud speaker output audio signal, and described second audio output mode is by earphone output audio signal.
10. audio output device as claimed in claim 9, it is characterized in that, described control module comprises switching circuit, for exporting the switching signal of instruction by loud speaker output audio signal when the control signal from earphone indicates the first audio output mode, and export the switching signal of instruction by earphone output audio signal when the control signal from earphone indicates the second audio output mode.
11. 1 kinds of display unit, is characterized in that, comprise the audio output device as described in claim arbitrary in claim 8-10.
12. display unit as claimed in claim 11, is characterized in that, comprise the earphone removably connected with described audio output device;
Wherein, described earphone is earphone according to claim 7.
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| CN201520806429.XU CN205071294U (en) | 2015-10-19 | 2015-10-19 | Headphone structure circuit, earphone, audio output device and display device |
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| CN201520806429.XU CN205071294U (en) | 2015-10-19 | 2015-10-19 | Headphone structure circuit, earphone, audio output device and display device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105338447A (en) * | 2015-10-19 | 2016-02-17 | 京东方科技集团股份有限公司 | Earphone control circuit and method, earphone, and audio frequency output apparatus and method |
| US10045111B1 (en) | 2017-09-29 | 2018-08-07 | Bose Corporation | On/off head detection using capacitive sensing |
| CN108882078A (en) * | 2017-05-09 | 2018-11-23 | 腾讯科技（深圳）有限公司 | The method that headphone and detection headphone are worn |
| US10257602B2 (en) | 2017-08-07 | 2019-04-09 | Bose Corporation | Earbud insertion sensing method with infrared technology |
| US10334347B2 (en) | 2017-08-08 | 2019-06-25 | Bose Corporation | Earbud insertion sensing method with capacitive technology |
| US10462551B1 (en) | 2018-12-06 | 2019-10-29 | Bose Corporation | Wearable audio device with head on/off state detection |
| US10812888B2 (en) | 2018-07-26 | 2020-10-20 | Bose Corporation | Wearable audio device with capacitive touch interface |
| US11228853B2 (en) | 2020-04-22 | 2022-01-18 | Bose Corporation | Correct donning of a behind-the-ear hearing assistance device using an accelerometer |
| US11275471B2 (en) | 2020-07-02 | 2022-03-15 | Bose Corporation | Audio device with flexible circuit for capacitive interface |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105338447A (en) * | 2015-10-19 | 2016-02-17 | 京东方科技集团股份有限公司 | Earphone control circuit and method, earphone, and audio frequency output apparatus and method |
| WO2017067410A1 (en) * | 2015-10-19 | 2017-04-27 | 京东方科技集团股份有限公司 | Headset control circuit and method, headset, and audio output device and method |
| US10313777B2 (en) | 2015-10-19 | 2019-06-04 | Boe Technology Group Co., Ltd. | Earphone control circuit and method, earphone, as well as audio output device and method |
| CN108882078B (en) * | 2017-05-09 | 2021-01-26 | 腾讯科技（深圳）有限公司 | Headset and method for detecting wearing of headset |
| CN108882078A (en) * | 2017-05-09 | 2018-11-23 | 腾讯科技（深圳）有限公司 | The method that headphone and detection headphone are worn |
| US10257602B2 (en) | 2017-08-07 | 2019-04-09 | Bose Corporation | Earbud insertion sensing method with infrared technology |
| US10334347B2 (en) | 2017-08-08 | 2019-06-25 | Bose Corporation | Earbud insertion sensing method with capacitive technology |
| US10045111B1 (en) | 2017-09-29 | 2018-08-07 | Bose Corporation | On/off head detection using capacitive sensing |
| US10812888B2 (en) | 2018-07-26 | 2020-10-20 | Bose Corporation | Wearable audio device with capacitive touch interface |
| US10462551B1 (en) | 2018-12-06 | 2019-10-29 | Bose Corporation | Wearable audio device with head on/off state detection |
| US10757500B2 (en) | 2018-12-06 | 2020-08-25 | Bose Corporation | Wearable audio device with head on/off state detection |
| US11228853B2 (en) | 2020-04-22 | 2022-01-18 | Bose Corporation | Correct donning of a behind-the-ear hearing assistance device using an accelerometer |
| US11275471B2 (en) | 2020-07-02 | 2022-03-15 | Bose Corporation | Audio device with flexible circuit for capacitive interface |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Address before: Beijing economic and Technological Development Zone 100176 Beijing Zelu 9 Patentee before: BOE Technology Group Co., Ltd. |