CN110321015A - A kind of electronic pen - Google Patents
A kind of electronic pen Download PDFInfo
- Publication number
- CN110321015A CN110321015A CN201910239462.1A CN201910239462A CN110321015A CN 110321015 A CN110321015 A CN 110321015A CN 201910239462 A CN201910239462 A CN 201910239462A CN 110321015 A CN110321015 A CN 110321015A
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- CN
- China
- Prior art keywords
- electronic pen
- audio
- processor
- module
- light
- 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.)
- Pending
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- 230000005236 sound signal Effects 0.000 claims abstract description 30
- 241000180587 Pinnidae Species 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000007257 malfunction Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000005286 illumination Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
- G06F3/0383—Signal control means within the pointing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
- G06K19/07732—Physical layout of the record carrier the record carrier having a housing or construction similar to well-known portable memory devices, such as SD cards, USB or memory sticks
Abstract
The present invention provides a kind of electronic pens, design the mini receiver of Wireless USB and USB flash disk in electronic pen tail portion including the wireless blue tooth microphone in the design of electronic pen head position；It is integral by wireless messages exchange, realize the electronic pen of multifunction, audio signal is received and dispatched by bluetooth transceiver module, processor converts audio signals into analog audio signal, is reduced sound by audio-frequency amplifier, and the information feedback of storage is carried out comprehensive analysis to processor and come out by data processing module, sound signal is exported by audio output module, the system and device of entire sound output is simple in synthesis, and switching performance is good, it is not easy to malfunction；And the notch of storage USB flash disk is also provided on electronic pen, and the light-emitting component on electronic pen can issue laser, improve user experience, and electronic pen is simple to manufacture, it is easy to carry using simplicity.
Description
Technical field
The present invention relates to electronics fields, in particular to a kind of electronic pen.
Background technique
Electronic pen is visible laser to be designed to portable, hand is easily held, mode of laser group (light emitting diode) is processed into pen type
Transmitter, also referred to as laser pen.Laser pen is present teacher a part critically important in teaching process, teacher teaching when
Waiting can be used laser pen and indicates position where the content oneself told about, and modern teaching often uses PPT, and teachers association shifts to an earlier date
It carries out PPT and then is demonstrated on classroom, due to often having more main points above one page PPT, drilled in order to facilitate teacher
The position for the main points for telling student to be told about when showing PPT, teacher can use laser pen, laser pen one when teaching
As be all to be powered by cell piece, beam of laser can be issued after turning on the switch.And usually in report, teaching, guides
It will carry out one luminous point of projection using it or a light is directed toward object, so that user be facilitated to be directed toward using the laser designator
Guide function.
It is had a single function however, traditional electronic pen often exists, the low drawback of user experience, and nothing on the market at present
Line Bluetooth microphone, electronic pen and USB flash disk are all independent main body, speaker or tutor takes microphone in speech on the other hand, and one
Hand takes electronic pen to cause to put random phenomenon, in addition, USB flash disk is as daily common office appliance, and smaller, is easy to place conveniently and lead
Situations such as losing is caused, therefore, needs the electronic pen of a collection USB flash disk and wireless Bluetooth headsets one on the market.
A kind of electronic pen, there are also do not propose specific solution party much for the practical problem urgently handled in practical application
Case.
Summary of the invention
The invention proposes a kind of electronic pens to solve one of described problem, by wireless blue tooth ear microphone and Wireless USB
Mini receiver and USB flash disk are integrated with electronic pen design, realize that its is multi-functional.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of electronic pen designs nothing in electronic pen tail portion including the wireless blue tooth microphone in the design of electronic pen head position
The mini receiver of line USB and USB flash disk, issue the light-emitting component of the light of specific band.
Optionally, the wireless blue tooth microphone includes the catch net of the electronic pen shell and front end that are combined as a whole
Cover, the interior system and device for accommodating sound sound output of the cavity that the shell and mat surround.
Optionally, the system and device of sound output includes the bluetooth transceiver module for receiving audio signal, will be described
Audio signal is converted to the processor of analog audio signal, and the audio signal is amplified to the audio-frequency amplifier of processing, storage
The data processing module of deposit data exports the audio output module of audio.
Optionally, the bluetooth transceiver module is connect with audio-frequency amplifier, and the audio-frequency amplifier and processor connect
It connects, the data processing module is connect with processor, and the processor is connect with audio output module.
Optionally, the system and device of sound output further includes power module, the power module and processor
Connection.
Optionally, the light-emitting component can issue light beam through the mat.
Optionally, the light-emitting component is diode laser, and the diode laser includes infrared diode
Laser.
Optionally, the electronic pen further includes control key and can judge that wireless blue tooth microphone is in starting or closes
The status indicator lamp of state.
Optionally, there is silver-plated stenlizing layer on the mat outer surface.
Compared with prior art, advantageous effects obtained by the present invention are:
1, the present invention is integral by wireless messages exchange, realizes the electronic pen of multifunction, electronic pen setting
Wireless blue tooth microphone receives and dispatches audio signal by bluetooth transceiver module, and processor converts audio signals into analogue audio frequency
Signal is reduced sound by audio-frequency amplifier, and data processing module carries out the information feedback of storage to processor comprehensive
Conjunction, which analyzes, to be come, and is exported sound signal by audio output module, and the system and device of entire sound output is simple in synthesis, even
It is good to connect performance, it is not easy to malfunction；And the notch of storage USB flash disk is also provided on electronic pen, and the light-emitting component energy on electronic pen
Laser is issued, user experience is improved.
2, electronic pen of the invention is simple to manufacture, easy to carry using simplicity.
Detailed description of the invention
From following description with reference to the accompanying drawings it will be further appreciated that the present invention.Component in figure is not drawn necessarily to scale,
But it focuses on and shows in the principle of embodiment.In different views, identical appended drawing reference specifies corresponding part.
Fig. 1 is a kind of structural schematic diagram of electronic pen in one of embodiment of the present invention.
Fig. 2 is the system diagram for the system and device that sound exports in one of embodiment of the present invention.
Specific embodiment
In order to enable the objectives, technical solutions, and advantages of the present invention are more clearly understood, below in conjunction with embodiment, to this
Invention is further elaborated；It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, and does not have to
It is of the invention in limiting.To those skilled in the art, after access is described in detail below, other systems of the present embodiment
System, method and/or feature will become obvious.All such additional systems, method, feature and advantage are intended to be included in
It in this specification, is included within the scope of the invention, and by the protection of the appended claims.In description described in detail below
The other feature of the disclosed embodiments, and these characteristic roots will be apparent according to described in detail below.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if having term " on ", "lower", " left side ",
The orientation or positional relationship of instructions such as " right sides " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or component of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore the terms describing the positional relationship in the drawings are only for illustration, should not be understood as pair
The limitation of this patent can understand the specific of above-mentioned term for the ordinary skill in the art as the case may be
Meaning.
The present invention is a kind of electronic pen, and following embodiment is told about according to Fig. 1-2:
Embodiment one: a kind of electronic pen, including the wireless blue tooth microphone in the design of electronic pen head position and in electronic pen
The mini receiver of Wireless USB and USB flash disk are designed in tail portion, issue the light-emitting component of the light of specific band；The wireless blue tooth wheat
Gram bellows chamber includes the mat of the electronic pen shell and front end that are combined as a whole, the cavity that the shell and mat surround
The interior system and device for accommodating sound sound output；The system and device of the sound output includes the bluetooth transmitting-receiving for receiving audio signal
The audio signal is converted to the processor of analog audio signal by module, and the audio signal is amplified to the sound of processing
Audio amplifier stores the data processing module of data, exports the audio output module of audio；The bluetooth transceiver module and sound
Audio amplifier connection, the audio-frequency amplifier are connect with processor, and the data processing module is connect with processor, described
Processor connect with audio output module；The system and device of the sound output further includes power module, the power supply
Module is connect with processor；The light-emitting component can issue light beam through the mat；The light-emitting component is
Diode laser, the diode laser include infrared diode laser；The electronic pen further includes control key
With can judge wireless blue tooth microphone be in starting or closed state status indicator lamp；On the mat outer surface
With silver-plated stenlizing layer.
Embodiment two:
A kind of electronic pen, comprising: pen body, the light source assembly being electrically connected to each other being set in the pen body and power supply group
Part, the pen body include: exit portion, receiving portion, fixed part and tail portion, the receiving portion be set to the exit portion with it is described solid
Determine between portion, the fixed part is connected with the tail portion；The illumination region of the light source assembly towards the exit portion, it is described go out
The portion of penetrating is provided with radiator, the radiator；The exit portion has light tank, and the illumination region of the light source assembly passes through
For the light tank by light projection to outside, it is wireless blue that the pen body is that rodlike, described electronic pen is provided in light source exit portion
Tooth microphone, the wireless blue tooth microphone includes the mat of the electronic pen shell and front end that are combined as a whole, described
Shell and the cavity that surrounds of mat in accommodate the system and device of sound sound output；The system and device of the sound output
The audio signal, is converted to the processor of analog audio signal, by institute by the bluetooth transceiver module including receiving audio signal
The audio-frequency amplifier that audio signal amplifies processing is stated, the data processing module of data is stored, exports the audio output of audio
Module；The bluetooth transceiver module is connect with audio-frequency amplifier, and the audio-frequency amplifier is connect with processor, the number
It is connect according to processing module with processor, the processor is connect with audio output module；The system dress of the sound output
Setting further includes power module, and the power module is connect with processor；The light-emitting component can penetrate the catch net
Cover issues light beam；The light-emitting component is diode laser, and the diode laser includes infrared diode laser
Device；The electronic pen further includes control key and can judge that wireless blue tooth microphone is in starting or the state of closed state refers to
Show lamp；There is silver-plated stenlizing layer on the mat outer surface.
Embodiment three:
A kind of electronic pen, comprising: pen body, the light source assembly being electrically connected to each other being set in the pen body and power supply group
Part, the pen body include: exit portion, receiving portion, fixed part and tail portion, the receiving portion be set to the exit portion with it is described solid
Determine between portion, the fixed part is connected with the tail portion；The illumination region of the light source assembly towards the exit portion, it is described go out
The portion of penetrating is provided with radiator, the radiator；The exit portion has light tank, and the illumination region of the light source assembly passes through
For the light tank by light projection to outside, it is wireless blue that the pen body is that rodlike, described electronic pen is provided in light source exit portion
Tooth microphone, the wireless blue tooth microphone includes the mat of the electronic pen shell and front end that are combined as a whole, described
Shell and the cavity that surrounds of mat in accommodate the system and device of sound sound output；The system and device of the sound output
The audio signal, is converted to the processor of analog audio signal, by institute by the bluetooth transceiver module including receiving audio signal
The audio-frequency amplifier that audio signal amplifies processing is stated, the data processing module of data is stored, exports the audio output of audio
Module；The bluetooth transceiver module is connect with audio-frequency amplifier, and the audio-frequency amplifier is connect with processor, the number
It is connect according to processing module with processor, the processor is connect with audio output module；The system dress of the sound output
Setting further includes power module, and the power module is connect with processor；The light-emitting component can penetrate the catch net
Cover issues light beam or laser window is arranged on mesh enclosure, and the light-emitting component is diode laser, the diode
Laser includes infrared diode laser；The electronic pen further includes control key and can judge that wireless blue tooth microphone is in
The status indicator lamp of starting or closed state；There is silver-plated stenlizing layer on the mat outer surface.
In addition, being provided with USB wireless receiver and USB flash disk in the tail portion of electronic pen, USB flash disk can be accommodated and be not easy drop, realized
Wireless blue tooth microphone, electronic pen, USB flash disk integration.
Embodiment 4
A kind of electronic pen, comprising: pen body, the light source assembly being electrically connected to each other being set in the pen body and power supply group
Part, the pen body include: exit portion, receiving portion, fixed part and tail portion, the receiving portion be set to the exit portion with it is described solid
Determine between portion, the fixed part is connected with the tail portion；The illumination region of the light source assembly towards the exit portion, it is described go out
The portion of penetrating is provided with radiator, the radiator；The exit portion has light tank, and the illumination region of the light source assembly passes through
For the light tank by light projection to outside, it is wireless blue that the pen body is that rodlike, described electronic pen is provided in light source exit portion
Tooth microphone, the wireless blue tooth microphone includes the mat of the electronic pen shell and front end that are combined as a whole, described
Shell and the cavity that surrounds of mat in accommodate the system and device of sound sound output；The system and device of the sound output
The audio signal, is converted to the processor of analog audio signal, by institute by the bluetooth transceiver module including receiving audio signal
The audio-frequency amplifier that audio signal amplifies processing is stated, the data processing module of data is stored, exports the audio output of audio
Module；The bluetooth transceiver module is connect with audio-frequency amplifier, and the audio-frequency amplifier is connect with processor, the number
It is connect according to processing module with processor, the processor is connect with audio output module；The system dress of the sound output
Setting further includes power module, and the power module is connect with processor；The light-emitting component can penetrate the catch net
Cover issues light beam or laser window is arranged on mesh enclosure, and the light-emitting component is diode laser, the diode
Laser includes infrared diode laser；The electronic pen further includes control key and can judge that wireless blue tooth microphone is in
The status indicator lamp of starting or closed state；There is silver-plated stenlizing layer on the mat outer surface.
In addition, being provided with USB wireless receiver and USB flash disk in the tail portion of electronic pen, USB flash disk can be accommodated and be not easy drop, realized
Wireless blue tooth microphone, electronic pen, USB flash disk integration.
In the present embodiment, described as shown in Fig. 2, the electronic pen further comprises the control button that pen body is arranged in
Control button include on & off switch 1, control the laser key 3 of light-emitting component, the upper page turning key 4 that control window page turns over, control
The lower page turning key 5 turned under window page realizes the selection key 6 of selection hyperlink, controls the volume key 8 of volume；Described
Upper 4 long-pressing of page turning key can realize that the broadcasting of content of pages, 5 long-pressing of lower page turning key can realize blank screen；The selection key 6
The switching of long-pressing section realization window；The volume key 8 includes the volume key 81 and the volume key 82 of reduction volume for increasing volume,
When window is in broadcast state, if long-pressing volume key 81, it is able to achieve the function of pause, when window is in the state of pause,
If long-pressing volume key 81 is able to achieve the function of broadcasting；When long-pressing volume key 82, it is able to achieve the function of closing window；Described
Electronic pen pen body is provided with status indicator lamp 2 and laser window 9, can be judged by indicator light colors each close to microphone end
The state of function, the electronics pen end are provided with USB notch 7, can accommodate USB flash disk, so that USB flash disk and electronic pen tail one, real
It is existing multi-functional.
Although describing the present invention by reference to various embodiments above, but it is to be understood that of the invention not departing from
In the case where range, many changes and modifications can be carried out.That is methods discussed above, system and equipment are examples.
Various configurations can be omitted suitably, replace or add various processes or component.For example, in alternative configuration, can with institute
The order in a different order of description executes method, and/or can add, and omits and/or combine various parts.Moreover, about certain
The features of a little configuration descriptions can be combined with various other configurations, can such as combine in a similar way the different aspect of configuration with
Element.In addition, can update as technology develops element therein, i.e., many elements are examples, are not intended to limit the disclosure or power
The range that benefit requires.
Give detail in the description to provide to the thorough understanding for including the exemplary configuration realized.However,
Configuration can be practiced without these specific details for example, having been illustrated with well-known circuit, and process is calculated
Method, structure and technology are without unnecessary details, to avoid fuzzy configuration.The description only provides example arrangement, and unlimited
The scope of the claims processed, applicability or configuration.It is used on the contrary, front will provide the description of configuration for those skilled in the art
Realize the enabled description of described technology.It, can be to the function of element without departing from the spirit or the scope of the present disclosure
It can and arrange and carry out various changes.
To sum up, be intended to foregoing detailed description be considered as it is illustrative and not restrictive, and it is to be understood that below
Claim (including all equivalents) is intended to limit the spirit and scope of the present invention.The above embodiment is interpreted as only using
In illustrating the present invention rather than limit the scope of the invention.After the content for having read record of the invention, technology
Personnel can make various changes or modifications the present invention, these equivalence changes and modification equally fall into the claims in the present invention and limited
Fixed range.
Claims (9)
1. a kind of electronic pen, which is characterized in that including the wireless blue tooth microphone in the design of electronic pen head position and in electronic pen
The mini receiver of Wireless USB and USB flash disk are designed in tail portion, issue the light-emitting component of the light of specific band.
2. electronic pen as described in claim 1, which is characterized in that the wireless blue tooth microphone includes being combined as a whole
The mat of electronic pen shell and front end, the sound sound output of the interior receiving of the cavity that the shell and mat surround are
Bulk cargo is set.
3. the electronic pen as described in one of preceding claims, which is characterized in that the system and device of the described sound output includes
The audio signal, is converted to the processor of analog audio signal, by the sound by the bluetooth transceiver module for receiving audio signal
Frequency signal amplifies the audio-frequency amplifier of processing, stores the data processing module of data, exports the audio output module of audio.
4. the electronic pen as described in one of preceding claims, which is characterized in that the bluetooth transceiver module and audio is amplified
Device connection, the audio-frequency amplifier are connect with processor, and the data processing module is connect with processor, the processing
Device is connect with audio output module.
5. the electronic pen as described in one of preceding claims, which is characterized in that the system and device of the sound output also wraps
Power module is included, the power module is connect with processor.
6. the electronic pen as described in one of preceding claims, which is characterized in that the light-emitting component can penetrate the guarantor
Protective net cover issues light beam.
7. the electronic pen as described in one of preceding claims, which is characterized in that the light-emitting component is diode laser,
The diode laser includes infrared diode laser.
8. the electronic pen as described in one of preceding claims, which is characterized in that the electronic pen further includes control key and energy
Judge that wireless blue tooth microphone is in the status indicator lamp of starting or closed state.
9. the electronic pen as described in one of preceding claims, which is characterized in that have plating on the mat outer surface
Silver-colored stenlizing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239462.1A CN110321015A (en) | 2019-03-27 | 2019-03-27 | A kind of electronic pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239462.1A CN110321015A (en) | 2019-03-27 | 2019-03-27 | A kind of electronic pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110321015A true CN110321015A (en) | 2019-10-11 |
Family
ID=68112829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910239462.1A Pending CN110321015A (en) | 2019-03-27 | 2019-03-27 | A kind of electronic pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110321015A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100255783A1 (en) * | 2009-04-02 | 2010-10-07 | M Designs Inc. | Apparatus and method for receiving audio signals using bluetooth |
| CN103646584A (en) * | 2013-11-27 | 2014-03-19 | 华中科技大学 | Multifunctional demonstration pen data transmission method and product |
| CN107016903A (en) * | 2017-05-22 | 2017-08-04 | 肇庆学院 | It is a kind of that there is USB flash disk, recording pen, the wireless device of Pen for turning page function |
| CN208572408U (en) * | 2018-04-25 | 2019-03-01 | 北京纽曼凤凰科技有限公司 | Wireless microphone based on bluetooth BLE transmission |
-
2019
- 2019-03-27 CN CN201910239462.1A patent/CN110321015A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100255783A1 (en) * | 2009-04-02 | 2010-10-07 | M Designs Inc. | Apparatus and method for receiving audio signals using bluetooth |
| CN103646584A (en) * | 2013-11-27 | 2014-03-19 | 华中科技大学 | Multifunctional demonstration pen data transmission method and product |
| CN107016903A (en) * | 2017-05-22 | 2017-08-04 | 肇庆学院 | It is a kind of that there is USB flash disk, recording pen, the wireless device of Pen for turning page function |
| CN208572408U (en) * | 2018-04-25 | 2019-03-01 | 北京纽曼凤凰科技有限公司 | Wireless microphone based on bluetooth BLE transmission |
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Application publication date: 20191011 |