CN107592264A - A kind of wireless router, Wireless Keyboard realize the method and system of equipment switching - Google Patents
A kind of wireless router, Wireless Keyboard realize the method and system of equipment switching Download PDFInfo
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- CN107592264A CN107592264A CN201710681170.4A CN201710681170A CN107592264A CN 107592264 A CN107592264 A CN 107592264A CN 201710681170 A CN201710681170 A CN 201710681170A CN 107592264 A CN107592264 A CN 107592264A
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Abstract
The invention discloses the method and system that a kind of wireless router, Wireless Keyboard realize equipment switching, need multiple peripheral hardware keyboard connections to solve prior art, are unfavorable for the problem of user deposits.This method includes：S1, receive the radio keyboard signal that Wireless Keyboard is sent；S2, the radio keyboard signal is changed into character code；S3, the character code is forwarded to corresponding terminal device.The transmission of Wireless Keyboard and wireless router of the present invention uses the mode of signal projector and receiver, need not rely on system connection Wi Fi, reduce to occupancy of the wireless router system to resource, while Wireless Keyboard carrys out work also without as autonomous system, reduces power consumption.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of wireless router, Wireless Keyboard to realize equipment switching
Method and system.
Background technology
In smart home, there is numerous terminal devices, such as notebook computer, iPad, mobile phone, intelligent television etc.
Equipment.User can typically use the keyboard of equipment itself institute band when these equipment are operated, complicated when needing to carry out frequently
Operation when, can typically connect external connection keyboard and assist user to conveniently enter.
Keyboard is a kind of instruction and data input unit for operation equipment operation, also refers to and operates one by system arrangement
One group of function key (such as typewriter, computor-keyboard) of platform machine or equipment.
Keyboard is the most frequently used and most important input equipment, can be by English alphabet, numeral, punctuation mark by keyboard
Etc. being input in computer, so as to send order, input data etc. to computer.Over time, in the market gradually
Also there is the independent product with various shortcut functions individually to sell, and with special driving and setting software, in compatibility
Also the operation of personalization can be realized on machine.
When user needs to go to operate multiple equipment with external connection keyboard, it is necessary to use multiple and these smart machines
The external connection keyboard of matching, the can that then connects one to one easily have input using external connection keyboard.However, it is desirable to keyboard
Quantity is more, model each one, is unfavorable for the storage of user, user experience is poor.
Publication No. CN103869987A patent provides a kind of external connection keyboard and mobile terminal, and external connection keyboard includes more
Individual button, in addition to：Recognition by pressing keys module, to the pressing position of key range to produce corresponding column signal and row signal；
Primary sinusoid generator, recognition by pressing keys module is coupled, to produce primary sinusoid signal according to column signal；Second sine wave
Generator, recognition by pressing keys module is coupled, to produce the second sine wave signal according to row signal；Amplifier, coupling first are sinusoidal
Wave producer, the second sine-wave generator, to be carried out to the superposed signal of primary sinusoid signal and the second sine wave signal
Amplification；Interface portion, amplifier is coupled, to insert the microphone jack of mobile terminal；Wherein, when pressing keys, amplifier
Output signal transmitted by interface portion, microphone jack into mobile terminal to perform corresponding operating.What the invention was proposed
External connection keyboard and mobile terminal so that external connection keyboard is by microphone jack input signal to realize input through keyboard.But the hair
Bright external connection keyboard, it is necessary to correspond equipment, using trouble is, it is necessary to multiple external connection keyboards.
The content of the invention
The technical problem to be solved in the present invention purpose is to provide a kind of wireless router, Wireless Keyboard realizes that equipment switches
Method and system, need the connection of multiple peripheral hardware keyboards to solve prior art, the problem of being unfavorable for user's storage.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of method that wireless router realizes equipment switching, including step：
S1, receive the radio keyboard signal that Wireless Keyboard is sent；
S2, the radio keyboard signal is changed into character code；
S3, the character code is forwarded to corresponding terminal device.
Further, step S2 is specifically included：
Character input agreement is established with terminal device；
The character code is decoded using the character input agreement；
Decoded character is encoded again using the character input agreement.
Further, in addition to step：
Establish character input object transfer chained list；
Obtain the switching pointer that keyboard is sent and point to order；
The terminal device being currently transfused to according to the switching pointer sensing command selection.
Further, the object transfer chained list includes device numbering, device name and its corresponding MAC Address.
A kind of method that Wireless Keyboard realizes equipment switching, including step：
Electric signal caused by button is encoded to ASCII character；
It is changed into radio keyboard signal by signal conversion transmitter；
The radio keyboard signal is sent to wireless router.
The system that a kind of wireless router realizes equipment switching, including：
Receiving module, for receiving the radio keyboard signal of Wireless Keyboard transmission；
Transcoding module, for the radio keyboard signal to be switched into character code；
Forwarding module, for the character code to be forwarded into corresponding terminal device.
Further, the transcoding module includes：
Protocol element, for establishing character input agreement with terminal device；
Decoding unit, for being decoded using the character input agreement to the character code；
Unit is re-encoded, for being encoded again to decoded character using the character input agreement.
Further, in addition to：
Table module is built, for establishing character input object transfer chained list；
Handover module, the switching pointer for obtaining Wireless Keyboard transmission point to order；
Selecting module, for the terminal device being currently transfused to according to the switching pointer sensing command selection.
Further, it is described to build object transfer chained list in table module and include device numbering, device name and its corresponding MAC
Address.
The system that a kind of keyboard realizes equipment switching, including：
Coding module, for electric signal caused by button to be encoded into ASCII character；
Modular converter, for being changed into radio keyboard signal by signal conversion transmitter；
Sending module, for the radio keyboard signal to be sent to wireless router.
It is of the invention compared with traditional technology, have the following advantages：
The transmission of Wireless Keyboard and wireless router of the present invention uses the mode of signal projector and receiver, it is not necessary to according to
Rely system connection Wi-Fi, reduce to occupancy of the wireless router system to resource, while Wireless Keyboard is also without as independence
System carrys out work, reduces power consumption.
Brief description of the drawings
Fig. 1 is the method flow diagram that a kind of wireless router that embodiment one provides realizes equipment switching；
Fig. 2 is the system construction drawing that a kind of wireless router that embodiment one provides realizes equipment switching；
Fig. 3 is the method flow diagram that a kind of wireless router that embodiment two provides realizes equipment switching；
Fig. 4 is the system construction drawing that a kind of wireless router that embodiment two provides realizes equipment switching；
Fig. 5 is the method flow diagram that a kind of wireless router that embodiment three provides realizes equipment switching；
Fig. 6 is the system construction drawing that a kind of wireless router that embodiment three provides realizes equipment switching；
Fig. 7 is the method flow diagram that a kind of Wireless Keyboard that example IV provides realizes equipment switching；
Fig. 8 is the system construction drawing that a kind of Wireless Keyboard that example IV provides realizes equipment switching.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
In the present invention, router is a kind of computer network facility, and packet can be sent to by it by network one by one
Destination (transmission paths of selection data), this process is referred to as routeing.Wireless router is considered as a transponder, by family
The broadband network signal picked out on middle wall is transmitted to neighbouring Wireless Communication Equipment by antenna and (notebook computer, supports Wi-Fi
Mobile phone, the equipment of flat board and all band Wi-Fi functions).In general wireless router range of signal is 50 meters of radius, now
The range of signal for having had part wireless router has reached 300 meters of radius.Wireless Keyboard is that do not have between keyboard disk body and computer
Direct physical connection, special receiver is given by information transmission is inputted by infrared ray or radio wave.For accurately just
It is bluetooth equipment.Terminal device can be a variety of wireless terminals, such as the equipment such as notebook computer, iPad, mobile phone, intelligent television.
Embodiment one
A kind of method that wireless router realizes equipment switching is present embodiments provided, as shown in figure 1, including step：
S11：Receive the radio keyboard signal that Wireless Keyboard is sent；
S12：Radio keyboard signal is changed into character code；
S13：Character code is forwarded to corresponding terminal device.
Existing Wireless Keyboard needs to connect one to one with terminal device, and large number of and model differs, and is unfavorable for using
The storage at family, experience sense are poor.This implementation provides a kind of method that input is provided using a keyboard as multiple equipment.
In the present embodiment, the signal receiving and decoding device of Wireless Keyboard be embedded in into the inside of wireless router, Wireless Keyboard
Electric signal caused by button is encoded to ASCII character, and is transformed into wireless signal by signal conversion transmitter and is transferred to nothing
Line router.The keyboard of wireless router, which receives the decode device the keyboard signal received is switched into character code, is transmitted to no circuit
By the system of device.Wireless Keyboard and being wirelessly transferred for wireless router can use a kind of wireless signal of available frequency band, both
Transmitted using to code, i.e. the signal of Wireless Keyboard only has wireless router to receive, and transmission frequency between the two is unlimited.
In the present embodiment, step S11 is to receive the radio keyboard signal that Wireless Keyboard is sent.
Specifically, electric signal caused by button is encoded to ASCII character by Wireless Keyboard, and turn by signal conversion transmitter
It is changed into wireless signal, transmits to wireless router.The keyboard signal of wireless router receives the decode device and receives Wireless Keyboard
Signal.
In the present embodiment, step S12 is that radio keyboard signal is changed into character code.
Specifically, after wireless router receives the radio keyboard signal of Wireless Keyboard transmission, radio keyboard signal is turned
It is changed into character code.
In the present embodiment, step S13 is that character code is forwarded into corresponding terminal device.
Specifically, after radio keyboard signal is changed into character code by wireless router, character code is forwarded to correspondingly
Terminal device.Terminal device is decoded to obtain character again.
In the signal receiving and decoding device of wireless router insertion Wireless Keyboard, wireless router is set to receive the defeated of keyboard
Enter character, pass through Wi-Fi connection without wireless routing and Wireless Keyboard.Reduction accounts for wireless router system resource
With, while Wireless Keyboard carrys out work also without as independent system, reduces power consumption.
The present embodiment additionally provides the system that a kind of wireless router realizes equipment switching, as shown in Fig. 2 including：
Receiving module 21, for receiving the radio keyboard signal of Wireless Keyboard transmission；
Transcoding module 22, for radio keyboard signal to be changed into character code；
Forwarding module 23, for character code to be forwarded into corresponding terminal device.
In the present embodiment, receiving module 21 is used for the radio keyboard signal for receiving Wireless Keyboard transmission.
Specifically, electric signal caused by button is encoded to ASCII character by Wireless Keyboard, and turn by signal conversion transmitter
It is changed into wireless signal, transmits to wireless router.The keyboard signal of wireless router receives the decode device and receives Wireless Keyboard
Signal.
In the present embodiment, transcoding module 22 is used to radio keyboard signal being changed into character code.
Specifically, after wireless router receives the radio keyboard signal of Wireless Keyboard transmission, radio keyboard signal is turned
It is changed into character code.
In the present embodiment, forwarding module 23 is used to character code being forwarded to corresponding terminal device.
Specifically, after radio keyboard signal is changed into character code by wireless router, character code is forwarded to correspondingly
Terminal device.Terminal device is decoded to obtain character again.
The transmission of Wireless Keyboard and wireless router uses the mode of signal projector and receiver, it is not necessary to relies on system
Wi-Fi is connected, reduces the occupancy to wireless router system resource, while Wireless Keyboard comes also without as independent system
Work, reduces power consumption.
Embodiment two
A kind of method that wireless router realizes equipment switching is present embodiments provided, as shown in figure 3, including step：
S31：Receive the radio keyboard signal that Wireless Keyboard is sent；
S32：Radio keyboard signal is changed into character code；
S33：Character input agreement is established with terminal device；
S34：The character code sent using character input agreement to Wireless Keyboard is decoded；
S35：Decoded character is encoded again using character input agreement；
S36：Character code is forwarded to corresponding terminal device.
It is with the difference of embodiment one, step S12 specifically includes step S33~step S35.
Specifically, character input agreement is established first between wireless router and terminal device.It is wireless router, wireless
Keyboard and terminal device can be encoded or decoded by character input agreement.
Wireless router uses this character input protocol communication to decode with terminal device, it is ensured that wireless router can incite somebody to action
The character that Wireless Keyboard is sent is transmitted to terminal device.
After wireless router receives the character code of Wireless Keyboard transmission, Wireless Keyboard is sent out using character input agreement
The character information sent is decoded to obtain character.Wireless router reuses character input agreement and character is encoded and sent again
To terminal device, terminal device obtains the character of input through keyboard with character input protocol-decoding again.
Encoded or decoded by character input agreement, ensure that character information is transmitted to terminal by wireless router
Equipment, it is convenient and swift compared to being directly connected to terminal device, lift Consumer's Experience.
The present embodiment additionally provides the system that a kind of wireless router realizes equipment switching, as shown in figure 4, including：
Receiving module 41, for receiving the radio keyboard signal of Wireless Keyboard transmission；
Transcoding module 42, for radio keyboard signal to be changed into character code；
Forwarding module 43, for character code to be forwarded into corresponding terminal device.
It is that transcoding module 42 includes with the difference of embodiment one：
Protocol element 42a, for establishing character input agreement with terminal device；
Decoding unit 42b, the character code for being sent using character input agreement to Wireless Keyboard are decoded；
Unit 42c is re-encoded, for being encoded again to decoded character using character input agreement.
Specifically, protocol element 42a first establishes character input agreement between wireless router and terminal device.Decoding
Wireless router is decoded with terminal device using this character input protocol communication in unit 42b, it is ensured that wireless router can
The character that Wireless Keyboard is sent is transmitted to terminal device.
After wireless router receives the character code of Wireless Keyboard transmission, decoding unit 42b uses character input agreement
The character code sent to Wireless Keyboard is decoded to obtain character.Wireless router reuses character in re-encoding unit 42c
Input agreement will send to terminal device, terminal device after character code and obtain input through keyboard with character input protocol-decoding again
Character.
Embodiment three
This implementation provides a kind of method that wireless router realizes equipment switching, as shown in figure 5, including step：
S51：Receive the radio keyboard signal that Wireless Keyboard is sent；
S52：Radio keyboard signal is changed into character code；
S53：Character input agreement is established with terminal device；
S54：The character code sent using character input agreement to Wireless Keyboard is decoded；
S55：Decoded character is encoded again using character input agreement；
S56：Character code is forwarded to corresponding terminal device.
S57：Establish character input object transfer chained list；
S58：Obtain the switching pointer that Wireless Keyboard is sent and point to order；
S59：The terminal device being currently transfused to according to switching pointer sensing command selection.
It is with embodiment one, two differences, in addition to step S57~step S59.
Specifically, wireless router establishes character input object transfer chained list.Chained list record is connected with wireless router
The terminal for connecing and needing to use Wireless Keyboard to assist input.
In the present embodiment, object transfer chained list includes device numbering, device name MAC Address corresponding with its.
It is as shown in the table.After the terminal device of wireless router and following table connects, Wireless Keyboard is given tacit consent to numbering 1
Terminal device inputs character, and wireless router system can also draft a pointer and point to numbering 1, show Wireless Keyboard to No. 1 end
End equipment inputs.When user needs to input to other-end equipment, pointing to other with Wireless Keyboard operational control pointer will input
Terminal device.For example, it is the behaviour that pointer is switched to No. 2 terminal devices to be pressed simultaneously in wireless router setting Ctrl and F2
Make, when wireless router detects user while presses Ctrl and F2, pointer is switched to No. 2 terminal devices by expression, wirelessly
Pointer is just pointed to No. 2 terminal devices by router, makes input peripheral of the keyboard as No. 2 terminal devices.
| Numbering | Device name | MAC Address |
| 1 | Notebook computer | 00E0842201 |
| 2 | Millet mobile phone | 00F3653322 |
| 3 | IPAD | 00E1763412 |
| n | … | … |
Realize that the demand of various terminal equipment input peripheral is used as in Wireless Keyboard switching by object transfer chained list.
The present embodiment additionally provides the system that a kind of wireless router realizes equipment switching, as shown in fig. 6, including：
Receiving module 61, for receiving the radio keyboard signal of Wireless Keyboard transmission；
Transcoding module 62, for radio keyboard signal to be changed into character code；
Forwarding module 63, for character code to be forwarded into corresponding terminal device.
Table module 64 is built, for establishing character input object transfer chained list；
Handover module 65, for obtaining the switching pointer directional order of Wireless Keyboard transmission；
Selecting module 66, for the terminal device being currently transfused to according to switching pointer sensing command selection.
Wherein, transcoding module 62 includes；
Protocol element 62a, for establishing character input agreement with terminal device；
Decoding unit 62b, the character code for being sent using character input agreement to Wireless Keyboard are decoded；
Unit 62c is re-encoded, for being encoded again to decoded character using character input agreement.
The present embodiment is with embodiment one, two differences, in addition to builds table module 64, handover module 65 and selection mould
Block 66.
Specifically, building table module 64 establishes character input object transfer chained list.Chained list record is connected with wireless router
The terminal for connecing and needing to use Wireless Keyboard to assist input.
In the present embodiment, building object transfer chained list in table module 64 includes device numbering, device name MAC corresponding with its
Address.
When wireless router and terminal device connect after, wireless router obtain Wireless Keyboard directional order, nothing
Line keyboard, which is given tacit consent to a certain terminal device, inputs character, and wireless router system can also draft a pointer and point to the terminal device
Device numbering, show Wireless Keyboard to acquiescence terminal device input.When user needs to input to other-end equipment, with wireless
Keyboard operation control pointer points to other terminal devices to be inputted.Wireless router obtains Wireless Keyboard hair in handover module 65
The switching pointer sent points to order, the terminal device that selecting module 66 is currently transfused to according to switching pointer sensing command selection.
Example IV
A kind of method that Wireless Keyboard realizes equipment switching is present embodiments provided, as shown in fig. 7, comprises step：
S71：Electric signal caused by button is encoded to ASCII character；
S72：It is changed into radio keyboard signal by signal conversion transmitter；
S73：Radio keyboard signal is sent to wireless router.
The Wireless Keyboard that this implementation provides is consistent with the common keyboard, simply that the signal receiving and decoding device of Wireless Keyboard is embedding
Enter inside wireless router, electric signal caused by button is encoded to ASCII character by Wireless Keyboard, and passes through signal switching emission
Device is changed into wireless signal and the system for being transferred to wireless router.Wireless Keyboard and being wirelessly transferred for wireless router can make
With a kind of wireless signal of available frequency band, both uses are transmitted to code, i.e. the signal of Wireless Keyboard only has wireless router can be with
Receive, transmission frequency between the two is unlimited.
In the present embodiment, Wireless Keyboard includes key circuit, key encoder and signal conversion transmitter.Wireless routing
Device includes wireless router system and keyboard signal Rcv decoder.
The key circuit of Wireless Keyboard produces electric signal, and electric signal caused by button is encoded into ASCII by key encoder
Code, is changed into wireless signal by signal conversion transmitter, is transmitted further to wireless router system.The keyboard letter of wireless router
Number Rcv decoder receives wireless signal.Wireless Keyboard and wireless router use a kind of wireless signal of available frequency band, and two
Person is transmitted to code.
The present embodiment additionally provides the system that a kind of Wireless Keyboard realizes equipment switching, as shown in figure 8, including：
Coding module 81, for electric signal caused by button to be encoded into ASCII character；
Modular converter 82, for being changed into radio keyboard signal by signal conversion transmitter；
Sending module 83, for radio keyboard signal to be sent to wireless router.
In the present embodiment, Wireless Keyboard includes key circuit, key encoder and signal conversion transmitter.Wireless routing
Device includes wireless router system and keyboard signal Rcv decoder.
The key circuit of Wireless Keyboard produces electric signal, and the key encoder of coding module 81 is by electric signal caused by button
ASCII character is encoded into, modular converter 82 is changed into wireless signal by signal conversion transmitter, and sending module 83 is transmitted further to nothing
Line router system.The keyboard signal Rcv decoder of wireless router receives wireless signal.Wireless Keyboard and wireless routing
Device uses a kind of wireless signal of available frequency band, and both transmit to code.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of method that wireless router realizes equipment switching, it is characterised in that including step：
S1, receive the radio keyboard signal that Wireless Keyboard is sent；
S2, the radio keyboard signal is changed into character code；
S3, the character code is forwarded to corresponding terminal device.
2. the method that a kind of wireless router according to claim 1 realizes equipment switching, it is characterised in that step S2 has
Body includes：
Character input agreement is established with terminal device；
The character code is decoded using the character input agreement；
Decoded character is encoded again using the character input agreement.
3. the method that a kind of wireless router according to claim 1 realizes equipment switching, it is characterised in that also include step
Suddenly：
Establish character input object transfer chained list；
Obtain the switching pointer that keyboard is sent and point to order；
The terminal device being currently transfused to according to the switching pointer sensing command selection.
4. the method that a kind of wireless router according to claim 3 realizes equipment switching, it is characterised in that the object
Transmission chained list includes device numbering, device name and its corresponding MAC Address.
5. a kind of method that Wireless Keyboard realizes equipment switching, it is characterised in that including step：
Electric signal caused by button is encoded to ASCII character；
It is changed into radio keyboard signal by signal conversion transmitter；
The radio keyboard signal is sent to wireless router.
A kind of 6. system that wireless router realizes equipment switching, it is characterised in that including：
Receiving module, for receiving the radio keyboard signal of Wireless Keyboard transmission；
Transcoding module, for the radio keyboard signal to be switched into character code；
Forwarding module, for the character code to be forwarded into corresponding terminal device.
7. the system that a kind of wireless router according to claim 6 realizes equipment switching, it is characterised in that the transcoding
Module includes：
Protocol element, for establishing character input agreement with terminal device；
Decoding unit, for being decoded using the character input agreement to the character code；
Unit is re-encoded, for being encoded again to decoded character using the character input agreement.
8. the system that a kind of wireless router according to claim 6 realizes equipment switching, it is characterised in that also include：
Table module is built, for establishing character input object transfer chained list；
Handover module, the switching pointer for obtaining Wireless Keyboard transmission point to order；
Selecting module, for the terminal device being currently transfused to according to the switching pointer sensing command selection.
9. the system that a kind of wireless router according to claim 8 realizes equipment switching, it is characterised in that described to build table
Object transfer chained list includes device numbering, device name and its corresponding MAC Address in module.
A kind of 10. system that keyboard realizes equipment switching, it is characterised in that including：
Coding module, for electric signal caused by button to be encoded into ASCII character；
Modular converter, for being changed into radio keyboard signal by signal conversion transmitter；
Sending module, for the radio keyboard signal to be sent to wireless router.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681170.4A CN107592264A (en) | 2017-08-10 | 2017-08-10 | A kind of wireless router, Wireless Keyboard realize the method and system of equipment switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681170.4A CN107592264A (en) | 2017-08-10 | 2017-08-10 | A kind of wireless router, Wireless Keyboard realize the method and system of equipment switching |
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| CN107592264A true CN107592264A (en) | 2018-01-16 |
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| CN201710681170.4A Pending CN107592264A (en) | 2017-08-10 | 2017-08-10 | A kind of wireless router, Wireless Keyboard realize the method and system of equipment switching |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609370A (en) * | 2009-07-21 | 2009-12-23 | 李治勋 | A kind of keyboard and method of work thereof |
| CN102739302A (en) * | 2011-04-08 | 2012-10-17 | 叶志勇 | Interconnection mode between mobile terminal and other devices |
| CN104049762A (en) * | 2013-03-15 | 2014-09-17 | 苏州精易会信息技术有限公司 | IP (internet protocol)-based keyboard device |
-
2017
- 2017-08-10 CN CN201710681170.4A patent/CN107592264A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609370A (en) * | 2009-07-21 | 2009-12-23 | 李治勋 | A kind of keyboard and method of work thereof |
| CN102739302A (en) * | 2011-04-08 | 2012-10-17 | 叶志勇 | Interconnection mode between mobile terminal and other devices |
| CN104049762A (en) * | 2013-03-15 | 2014-09-17 | 苏州精易会信息技术有限公司 | IP (internet protocol)-based keyboard device |
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