CN106972872A - A kind of the connection circuit and separate type call bracelet of bracelet of being conversed for separate type - Google Patents

A kind of the connection circuit and separate type call bracelet of bracelet of being conversed for separate type Download PDF

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Publication number
CN106972872A
CN106972872A CN201710283434.0A CN201710283434A CN106972872A CN 106972872 A CN106972872 A CN 106972872A CN 201710283434 A CN201710283434 A CN 201710283434A CN 106972872 A CN106972872 A CN 106972872A
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CN
China
Prior art keywords
heart rate
connection circuit
module
contact
output end
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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.)
Granted
Application number
CN201710283434.0A
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Chinese (zh)
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CN106972872B (en
Inventor
任思魁
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Priority to CN201710283434.0A priority Critical patent/CN106972872B/en
Publication of CN106972872A publication Critical patent/CN106972872A/en
Application granted granted Critical
Publication of CN106972872B publication Critical patent/CN106972872B/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/385Transceivers carried on the body, e.g. in helmets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/3883Arrangements for mounting batteries or battery chargers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/385Transceivers carried on the body, e.g. in helmets
    • H04B2001/3861Transceivers carried on the body, e.g. in helmets carried in a hand or on fingers

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Telephone Function (AREA)

Abstract

The invention discloses a kind of the connection circuit and separate type call bracelet of bracelet of being conversed for separate type, the connection circuit includes the first connection circuit and the second connection circuit, first the first filtration module of contact is connected with supply voltage output end, heart rate detection module is arranged to gather the first heart rate signal, modulation module is arranged to be modulated the first heart rate signal processing, obtains modulating heart rate signal, and modulation heart rate signal is sent into the first contact through the first electric capacity;Second the second filtration module of contact is connected with cell voltage output end, the input connection of second the second electric capacity of contact and demodulation module, demodulation module is arranged to be demodulated the second heart rate signal that input is inputted processing, obtains demodulating heart rate signal, and demodulation heart rate signal is sent into heart rate output end.So, by being multiplexed the first contact and the second contact, it is possible to achieve the reduction of the number of contacts of connection bluetooth earphone and bracelet in separate type call bracelet.

Description

A kind of the connection circuit and separate type call bracelet of bracelet of being conversed for separate type
Technical field
The present invention relates to technical field of circuit design, more particularly it relates to which a kind of be used for separate type call bracelet Connection circuit and separate type call bracelet.
Background technology
Separate type call bracelet is to be combined together bluetooth earphone and Intelligent bracelet, common to realize call, presentation of information Etc. function;The two combination can just share status information, it is necessary to linked together by way of circuit.
Existing separate type call bracelet mainly includes bracelet and bluetooth earphone two parts, as shown in figure 1, for separate type The second connection that the connection circuit of call bracelet includes the first connection circuit being arranged on bracelet and is arranged on bluetooth earphone Circuit.Contact pin1, SCL1, SDA1, INT1, pin3 of first connection circuit be connected with second the contact pin2 of circuit, SCL2, SDA2, INT2, pin4 correspondence are connected.After the contact pin2 connections of the connection circuits of contact pin1 and second of first connection circuit, The battery of bluetooth earphone can power for the heart rate detection module in bracelet.First connection circuit contact SCL1, SDA1, INT1 and After contact SCL2, SDA2, INT2 correspondence connection of second connection circuit, the heart rate value of heart rate detection module detection can be transferred into In bluetooth earphone.After the contact pin4 connections of the connection circuits of contact pin3 and second of first connection circuit, bracelet ensure that With bluetooth earphone altogether.
Because the contact set on separate type call bracelet is excessive, the outward appearance of separate type call bracelet is not only influenceed, shadow is gone back Ring the reliability of correspondence contact portion.It is therefore proposed that a kind of connection circuit for the number of contacts for reducing separate type call bracelet is It is very valuable.
The content of the invention
It is an object of the present invention to provide a kind of the new of connection circuit for the number of contacts for reducing separate type call bracelet Technical scheme.
According to the first aspect of the invention there is provided a kind of connection circuit for bracelet of being conversed for separate type, including set The first connection circuit and the second connection circuit being arranged on bluetooth earphone on bracelet, the first connection circuit include the heart Rate detection module, modulation module, the first filtration module, the first electric capacity, supply voltage output end and the first contact, described second connects Connect circuit including demodulation module, the second filtration module, the second electric capacity, cell voltage output end, heart rate output end and for institute State the second contact of the first contact portion;First contact connects through first filtration module and the supply voltage output end Connect, the heart rate detection module is arranged to gather the first heart rate signal, and the modulation module is arranged to first heart Rate signal is modulated processing, obtains modulating heart rate signal, and the modulation heart rate signal is sent to through first electric capacity First contact;Second contact is connected through second filtration module with the cell voltage output end, and described second Contact is connected through second electric capacity with the input of the demodulation module, and the demodulation module is arranged to the input Second heart rate signal of input is demodulated processing, obtains demodulating heart rate signal, and the demodulation heart rate signal is sent into institute State heart rate output end.
Optionally, the first connection circuit also includes the first Voltage stabilizing module, and first Voltage stabilizing module is arranged to Voltage stabilizing processing is carried out to the supply voltage that the supply voltage output end is exported, the first voltage of voltage regulation is obtained, for described Heart rate detection module is powered.
Optionally, the first connection circuit also includes the second Voltage stabilizing module, and second Voltage stabilizing module is arranged to Voltage stabilizing processing is carried out to the supply voltage that the supply voltage output end is exported, the second voltage of voltage regulation is obtained, for described Modulation module is powered.
Optionally, the second connection circuit also includes processing module, and the processing module is arranged to the heart The demodulation heart rate signal of rate output end output is handled, and obtains heart rate value.
Optionally, the second connection circuit also includes power switch, and the power switch is connected to the battery electricity Press between output end and second contact.
Optionally, the processing module is also configured to control the state of the power switch.
Optionally, the second connection circuit also includes display screen, and the display screen is arranged to show the heart rate Value.
Optionally, the second connection circuit also includes being used to receive the defeated of the heart rate detection request that the user inputs Enter module, the input module is connected with the processing module.
Optionally, the first connection circuit also includes the first earth terminal and the 3rd contact, and the second connection circuit is also wrapped Include the second earth terminal and for the 4th contact with the 3rd contact portion;First earth terminal connects with the 3rd contact Connect, second earth terminal and the 4th contact portion.
According to the second aspect of the invention there is provided a kind of separate type call bracelet, including according to a first aspect of the present invention Described connection circuit.
The beneficial effect of the present invention is, by the connection circuit of the present invention, the first contact of multiplexing and the second contact, It is transmitted cell voltage, heart rate signal can be transmitted again, it is possible to realize in separate type call bracelet and connect bluetooth earphone With the reduction of the number of contacts of bracelet, the outward appearance of separate type call bracelet can be effectively improved.Separation call hand can also be improved The water resistance of ring.By embodiments of the invention, can also improve bluetooth earphone and Intelligent bracelet contact portion it is reliable Property.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is a kind of circuit theory diagrams of implementation structure of the existing connection circuit for separate type call bracelet;
Fig. 2 is the square frame principle for a kind of implementation structure of the connection circuit of separate type call bracelet according to the present invention Figure;
Fig. 3 is the square frame principle for another implementation structure of the connection circuit of separate type call bracelet according to the present invention Figure;
Description of reference numerals:
The connection circuits of 100- first;The connection circuits of 200- second;
U1- heart rate detection modules;U2- modulation modules;
The filtration modules of U3- first;U4- demodulation modules;
The filtration modules of U5- second;The Voltage stabilizing modules of U6- first;
The Voltage stabilizing modules of U7- second;U8- processing modules;
U9- display screens;U10- input modules;
S1- is switched;C1, C2- electric capacity;
VCC1- supply voltage output ends;VCC2- cell voltage output ends;
GND1, GND2- earth terminal;Out1- demodulates heart rate output end;
P1~P4, pin1~pin4, SCL1, SCL2, SDA1, SDA2, INT1, INT2- contact.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that:Unless had in addition Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments does not limit this The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention And its any limitation applied or used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable In the case of, the technology, method and apparatus should be considered as a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
In order to which the connecting terminal quantity for solving the call bracelet of separate type present in prior art is excessive, product appearance is influenceed And there is provided a kind of connection circuit for bracelet of being conversed for separate type the problem of contact portion reliability, as shown in Fig. 2 including The first connection circuit 100 being arranged on bracelet and the second connection circuit being arranged on bluetooth earphone.First connection circuit 100 Including heart rate detection module U1, modulation module U2, the first filtration module U3, the first electric capacity C1, supply voltage output end VCC1 and First contact P1.It is defeated that second connection circuit 200 includes demodulation module U4, the second filtration module U5, the second electric capacity C2, cell voltage Go out to hold VCC2, heart rate output end out1 and the second contact P2 for being connected with the first contact P1.First contact P1 is through the first filter Ripple module U3 is connected with supply voltage output end VCC1, and heart rate detection module U1 is arranged to gather the first heart rate signal, modulation Module U2 is arranged to be modulated processing to the first heart rate signal, obtains modulating heart rate signal, and by the modulation heart rate signal The first contact P1 is sent to through the first electric capacity C1.Second contact P2 connects through the second filtration module U5 and cell voltage output end VCC2 Connect, the second contact P2 is connected through the second electric capacity C2 with demodulation module U4 input in1, and demodulation module is arranged to input Second heart rate signal of in1 inputs is demodulated processing, obtains demodulating heart rate signal, and demodulation heart rate signal is sent into heart rate Output end out1.Wherein, in the case of the first contact P1 and the second contact P2 connections, the second heart rate signal is modulation heart rate Signal.
When bluetooth earphone is loaded into bracelet, the first contact P1 and the second contact P2 connections conducting, cell voltage output The cell voltage of end VCC2 outputs is sent to the first contact P1 through the second contact P2.Supply voltage defeated supply voltage output VCC1 Will be equal with cell voltage.The supply voltage is used to power to heart rate detection module U1 and modulation module U2.Heart rate detection module U1 gathers the heart rate of user, exports the first heart rate signal.Modulation module U2 is modulated processing to the first heart rate signal, is specially It can be for example 1MHz by the frequency modulation(PFM) of the first heart rate signal to setpoint frequency, obtain modulating heart rate signal, and the heart will be modulated Rate signal output is to the first contact P1.Cell voltage is direct current signal, and modulation heart rate signal is AC signal, in order to prevent modulation Heart rate signal produces interference to supply voltage, and the first filtration module U3 can be to the first contact P1 cell voltage and modulation heart rate Signal is filtered processing, so that the modulation heart rate signal of exchange can not be transmitted to supply voltage output end VCC1, prevents exchange Adjustment heart rate signal to heart rate detection module U1 and modulation module U2 cause damage;Simultaneously so that what the first contact P1 was received Cell voltage can be transmitted to supply voltage output end VCC1.Modulation heart rate signal will be sent to second by the first contact P1 and touch Point P2, as the second heart rate signal.Because the second heart rate signal is also the AC signal of setpoint frequency, therefore the second filtration module U5 can be filtered processing to the second contact P2 cell voltage and the second heart rate signal so that the second heart rate signal can not be passed Cell voltage output end VCC2 is transported to, to prevent the second heart rate signal of exchange from causing to damage to battery;Simultaneously so that battery electricity The cell voltage of pressure output end VCC2 outputs can be sent to the second contact P2.First filter circuit U3 and the second filter circuit U4 Can be low-pass filter circuit, so that the modulation heart rate signal and the second heart rate signal of setpoint frequency can be filtered out.Specifically, the One filter circuit U3 and the second filter circuit U4 for example can be to be less than above-mentioned setpoint frequency by any one cut-off frequency Low pass filter is provided.The effect of electric capacity C1, C2 stopping direct current is utilized simultaneously, prevents the cell voltage of direct current from causing modulation module U2 and demodulation module U4 saturation, realize the separation between the cell voltage of direct current and the heart rate signal of exchange.Using electric capacity C1, The effect of C2 logical exchange, modulation heart rate signal is transmitted to demodulation module U4.The solution obtained after demodulation module U4 demodulation process Adjust heart rate signal should be identical with the frequency of the first heart rate signal.
So, the present invention makes for the connection circuit of separate type call bracelet by being multiplexed the first contact and the second contact It can transmit cell voltage, and heart rate signal can be transmitted again, it is possible to realize separate type call bracelet in connection bluetooth earphone and The reduction of the number of contacts of bracelet, can be effectively improved the outward appearance of separate type call bracelet.Separation call bracelet can also be improved Water resistance.By embodiments of the invention, the reliability of the contact portion of bluetooth earphone and Intelligent bracelet can also be improved.
Because heart rate detection module U1 and modulation module U2 supply voltage can be exported with supply voltage output end VCC1 Supply voltage it is different, therefore, as shown in figure 3, first connection circuit 100 also include the first Voltage stabilizing module U6, the first voltage stabilizing Module U6 is arranged to carry out voltage stabilizing processing to the supply voltage that supply voltage output end VCC1 is exported, and obtains the first voltage stabilizing electricity Pressure, for being powered to heart rate detection module U1.
Further, the first connection circuit 100 also includes the second Voltage stabilizing module U7, and the second Voltage stabilizing module U7 is arranged to pair Supply voltage output end VCC1 output supply voltage carry out voltage stabilizing processing, obtain the second voltage of voltage regulation, for modulation mould Block U2 powers.
In one particular embodiment of the present invention, as shown in figure 3, the second connection circuit 200 also includes processing module U8, Processing module U8 is arranged to handle heart rate output end out1 output ends demodulation heart rate signal, obtains heart rate value.Processing Module U8 can be provided by processor chips.Processing module U8 can be calculated according to the frequency of demodulation heart rate signal and be obtained heart rate Value.Processing module U8 can be provided by a MCU chip.
Further, the second connection circuit 200 also includes display screen U9, and display screen U9 is connected with processing module U8.Processing The heart rate value that module U8 is arranged to calculate, which is sent to display screen U9, to be shown.
On this basis, the second connection circuit 200 also includes power switch S1, and it is defeated that power switch S1 is connected to cell voltage Go out to hold between VCC2 and the second contact P2.
Yet further, processing module U8 is also configured to control power switch S1 state.Specifically, processing module U8 It can be the heart rate detection demand according to user to control power switch S1 state.
On this basis, the second connection circuit 200 also includes being used for the defeated of the heart rate detection request for receiving user's input Enter module U10, input module U10 is connected with processing module U8.When input module U10 receives the heart rate detection of user's input During request, processing module U8 control power switch S1 conductings, so that the battery of bluetooth earphone is heart rate detection module U1 and modulation Module U2 powers, and makes its normal work.Above-mentioned display screen U9 and input module U10 can be provided by a touching display screen 's.
So, power switch S1 can be provided by a PMOS, the grid of PMOS and processing module U8 control Signal output part connection processed, the source electrode of PMOS is connected with cell voltage output end VCC2, the drain electrode of PMOS and the second contact Connection.
In another specific embodiment of the present invention, the first connection circuit 100 also includes the first earth terminal GND1 and the Three contact P3, the second connection circuit 200 also includes the second earth terminal GND2 and the 4th contact for being connected with the 3rd contact P3 P4;First earth terminal GND1 is connected with the 3rd contact P3, and the second earth terminal GND2 is connected with the 4th contact P4.
When bluetooth earphone is loaded to bracelet, the 3rd contact P3 and the 4th contact P4 correspondences are connected, to ensure bluetooth ear Machine and bracelet are altogether.
Present invention also offers a kind of separate type call bracelet, including it is previously described for the connection electricity of separate type call bracelet Road.
Specifically, the first connection circuit 100 is arranged on bracelet, the second connection circuit 200 is arranged on bluetooth earphone, this Sample, separate type call bracelet of the invention makes it to transmit cell voltage, and energy by being multiplexed the first contact and the second contact Transmit heart rate signal, it is possible to realize the reduction of the number of contacts of connection bluetooth earphone and bracelet in separate type call bracelet, can To be effectively improved the outward appearance of separate type call bracelet.The water resistance of separation call bracelet can also be improved.Pass through the present invention's Embodiment, can also improve the reliability of the contact portion of bluetooth earphone and Intelligent bracelet.
The various embodiments described above primary focus describes the difference with other embodiment, but those skilled in the art should be clear Chu, the various embodiments described above can be used alone or be combined with each other as needed.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area Art personnel are it should be understood that example above is merely to illustrate, the scope being not intended to be limiting of the invention.The skill of this area Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair Bright scope is defined by the following claims.

Claims (10)

1. a kind of connection circuit for bracelet of being conversed for separate type, it is characterised in that including the first connection being arranged on bracelet Circuit and the second connection circuit being arranged on bluetooth earphone, the first connection circuit include heart rate detection module, modulation mould Block, the first filtration module, the first electric capacity, supply voltage output end and the first contact, the second connection circuit include solution mode transfer Block, the second filtration module, the second electric capacity, cell voltage output end, heart rate output end and for first contact portion Second contact;First contact is connected through first filtration module with the supply voltage output end, the heart rate detection Module is arranged to gather the first heart rate signal, and the modulation module is arranged to be modulated place to first heart rate signal Manage, obtain modulating heart rate signal, and the modulation heart rate signal is sent to first contact through first electric capacity;It is described Second contact is connected through second filtration module with the cell voltage output end, and second contact is through second electric capacity It is connected with the input of the demodulation module, the demodulation module is arranged to the second heart rate signal inputted to the input It is demodulated processing, obtains demodulating heart rate signal, and the demodulation heart rate signal is sent to the heart rate output end.
2. connection circuit according to claim 1, it is characterised in that the first connection circuit also includes the first voltage stabilizing mould Block, first Voltage stabilizing module is arranged to carry out voltage stabilizing processing to the supply voltage that the supply voltage output end is exported, and obtains To the first voltage of voltage regulation, for being powered to the heart rate detection module.
3. connection circuit according to claim 1, it is characterised in that the first connection circuit also includes the second voltage stabilizing mould Block, second Voltage stabilizing module is arranged to carry out voltage stabilizing processing to the supply voltage that the supply voltage output end is exported, and obtains To the second voltage of voltage regulation, for being powered to the modulation module.
4. connection circuit according to claim 1, it is characterised in that the second connection circuit also includes processing module, The processing module is arranged to handle the demodulation heart rate signal that the heart rate output end is exported, and obtains heart rate value.
5. connection circuit according to claim 4, it is characterised in that the second connection circuit also includes power switch, The power switch is connected between the cell voltage output end and second contact.
6. connection circuit according to claim 5, it is characterised in that the processing module is also configured to control the electricity The state of source switch.
7. connection circuit according to claim 4, it is characterised in that the second connection circuit also includes display screen, institute Display screen is stated to be arranged to show the heart rate value.
8. connection circuit according to claim 4, it is characterised in that the second connection circuit also includes being used to receive institute The input module of the heart rate detection request of user's input is stated, the input module is connected with the processing module.
9. connection circuit according to claim 1, it is characterised in that the first connection circuit also includes the first earth terminal With the 3rd contact, the second connection circuit also includes the second earth terminal and for the 4th contact with the 3rd contact portion;Institute State the first earth terminal and the 3rd contact portion, second earth terminal and the 4th contact portion.
The bracelet 10. a kind of separate type is conversed, it is characterised in that including the connection electricity according to any one of claim 1-7 Road.
CN201710283434.0A 2017-04-26 2017-04-26 A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet Active CN106972872B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710283434.0A CN106972872B (en) 2017-04-26 2017-04-26 A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet

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Application Number Priority Date Filing Date Title
CN201710283434.0A CN106972872B (en) 2017-04-26 2017-04-26 A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet

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CN106972872B CN106972872B (en) 2022-06-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111973168A (en) * 2020-08-27 2020-11-24 青岛歌尔智能传感器有限公司 Heart rate module, electronic equipment and intelligent wearing equipment of gathering heart rate

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CN203377648U (en) * 2013-08-01 2014-01-01 卢小平 Improved circuit sharing contact in triggering and charging
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111973168A (en) * 2020-08-27 2020-11-24 青岛歌尔智能传感器有限公司 Heart rate module, electronic equipment and intelligent wearing equipment of gathering heart rate

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