CN102158260A - Non-contact transmission system - Google Patents
Non-contact transmission system Download PDFInfo
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- CN102158260A CN102158260A CN2010101099406A CN201010109940A CN102158260A CN 102158260 A CN102158260 A CN 102158260A CN 2010101099406 A CN2010101099406 A CN 2010101099406A CN 201010109940 A CN201010109940 A CN 201010109940A CN 102158260 A CN102158260 A CN 102158260A
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Abstract
The invention provides a non-contact transmission system, which comprises a first electronic device and a second electronic device. After a first processing module of the first electronic device transmits a first digital signal to a digital-to-analogue modulation module, converts the first digital signal into a first analogue signal, converts the first analogue signal into a first forward analogue signal and a first backward analogue signal by a differential signal separation module, and transmits the first forward analogue signal and the first backward analogue signal to a first plate electrode and a second plate electrode, a third plate electrode and a fourth plate electrode of the second electronic device can receive a second forward analogue signal and a second backward analogue signal, synthesizes and converts the second forward analogue signal and the second backward analogue signal into a second analogue signal by a differential signal synthesis module, and converts the second analogue signal into a second digital signal by an analogue-to-digital demodulation module for the reception of a second data processing module.
Description
Technical field
The present invention refers to a kind of contactless transmission system especially relevant for a kind of transmission system.
Background technology
Electronic product is more and more general in modern society, and many electronic products all need to utilize the transmission line data when using, yet, install transmission line, electronic product just needs preparation transmission line slot for user's transmission line of pegging graft, and thus, just can cause many shortcomings, the profile that comprises electronic product is not attractive in appearance with when the user plugs transmission line continually, causes the damage of transmission line or transmission line slot easily.
And work as electronic product is the electronic product of pocket, for example when mobile phone or notebook computer, need utilize transmission line to do transfer of data and will make the more difficult performance of taking into account dustproof and waterproof of electronic product, and the user must carry transmission line just can carry out transfer of data, makes the practicality of electronic product and convenience all decline to a great extent.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of transmission system, refers to a kind of contactless transmission system especially.Contactless transmission system of the present invention is utilized the capacitance coupling effect transmission of data signals between plate electrode, uses to reach two non-contact data transmission between electronic installation, and then simplifies the housing designs and the transmission structure of electronic installation.
Contactless transmission system of the present invention comprises first electronic installation and second electronic device.First electronic installation comprises that the first data processing module, digital-to-analog modulation module, differential signal separate module, first plate electrode and second plate electrode; Second electronic device comprises the 3rd plate electrode, Siping City's plate electrode, differential signal synthetic module, analog to digital demodulation module and the second data processing module.
The first data processing module is in order to send first digital signal; Digital-to-analog modulation module is electrically connected at the first data processing module, uses that first digital signal is converted to first analog signal.
Differential signal separates module and is electrically connected at digital-to-analog modulation module, and using first analog signal conversion is the first direct die analog signal and the first inverse analog signal.
First plate electrode is electrically connected at differential signal and separates module, in order to receive the first direct die analog signal; Second plate electrode is electrically connected at differential signal and separates module, in order to receive the first inverse analog signal.
The 3rd plate electrode is contiguous and be coupled in first plate electrode, uses to receive the second direct die analog signal; Siping City's plate electrode is contiguous and be coupled in second plate electrode, uses to receive the second inverse analog signal.
The synthetic module of differential signal is electrically connected at the 3rd plate electrode and Siping City's plate electrode, in order to the difference of the comparison second direct die analog signal and the second inverse analog signal, and sends second analog signal according to this.
Analog to digital demodulation module is electrically connected at the synthetic module of differential signal, and using second analog signal conversion is second digital signal; The second data processing module is electrically connected at analog to digital demodulation module, uses to receive second digital signal.
In a preferred embodiment of the present invention, the first direct die analog signal is same as first analog signal, and the first inverse analog signal is identical with first analog signal amplitude and phase place is opposite.
In another preferred embodiment of the present invention, first plate electrode separates between the module with differential signal can have amplifier and filter, use amplifying signal and filtering noise information, in like manner, second plate electrode separates between the module with differential signal, between the synthetic module of the 3rd plate electrode and differential signal and Siping City's plate electrode synthesize between the module with differential signal, all can have amplifier and filter.
In another preferred embodiment of the present invention, analog digital demodulation module compares second analog signal and the reference voltage value of presetting, and using second analog signal conversion is second digital signal.
In another preferred embodiment of the present invention, first plate electrode and second plate electrode are arranged at the putting part inside of first electronic installation, and the 3rd plate electrode and Siping City's plate electrode are arranged at the putting part inside of second electronic device.
Compared to known transmission system, contactless transmission system of the present invention does not need to connect transmission line by the transmission line slot and does the transfer of data action, but first electronic installation and second electronic device are moved near doing transfer of data, therefore need not carry the transmission line except exempting damage and the user that frequent use causes, more can simplify the housing designs of electronic installation, to reach the performance of dustproof and waterproof, can make electronic installation take into account practicality and convenience easily thus.
Specific embodiment of the present invention will be further described by following embodiment and accompanying drawing.
Description of drawings
Fig. 1 is the block schematic diagram of the contactless transmission system of the present invention;
Fig. 2 is for possessing the first electronic installation schematic diagram of contactless transmission and receiving circuit simultaneously; And
Fig. 3 is a preferable schematic appearance of the contactless transmission system of the present invention.
The main element symbol description
First electronic installation 11
The first data processing module 111
Digital-to-analog modulation module 112
Differential signal separates module 113
Differential signal synthesizes module 119
Analog to digital demodulation module 120
Second electronic device 12
The 3rd plate electrode 121
Siping City's plate electrode 122
Differential signal synthesizes module 123
Analog to digital demodulation module 124
The second data processing module 125
Filter 127a, 127b
The first digital signal DS1
The first analog signal AS1
The first direct die analog signal PAS1
The first inverse analog signal NAS1
The second direct die analog signal PAS2
The second inverse analog signal NAS2
The second analog signal AS2
The second digital signal DS2
Embodiment
The present invention is relevant for a kind of keyboard structure.Especially refer to a kind of transmission system, refer to a kind of contactless transmission system especially.Below enumerate a preferred embodiment now with explanation the present invention, so have the knack of present technique field person and know that all this only is one for example, and be not in order to limit invention itself.The detailed description of relevant this preferred embodiment is as follows.
See also Fig. 1, Fig. 1 is the block schematic diagram of the contactless transmission system of the present invention.Contactless transmission system 100 comprises first electronic installation 11 and second electronic device 12.First electronic installation 11 comprises that the first data processing module 111, digital-to-analog modulation module 112, differential signal separate module 113, first plate electrode 114 and second plate electrode 115; Second electronic device 12 is to comprise the 3rd plate electrode 121, Siping City's plate electrode 122, differential signal synthetic module 123, analog to digital demodulation module 124 and the second data processing module 125.
The first data processing module 111 is in order to send the first digital signal DS1; Digital-to-analog modulation module 112 is electrically connected at the first data processing module 111, use the first digital signal DS1 is converted to the first analog signal AS 1, wherein, preferably in the present embodiment, digital-to-analog modulation module 112 has oscillator (figure does not show), in order to the first digital signal DS1 is modulated to the first analog signal AS1.
Differential signal separates module 113 and is electrically connected at digital-to-analog modulation module 112, uses that the first analog signal AS1 is converted to the first direct die analog signal PAS1 and the first inverse analog signal NAS1; Wherein, preferably in the present embodiment, the first direct die analog signal PAS1 is same as the first analog signal AS1, and the first inverse analog signal NAS1 is identical with the first analog signal AS1 amplitude and phase place is opposite, change to say it, the first direct die analog signal PAS1 is opposite with the first inverse analog signal NAS1 phase place.
The 3rd plate electrode 121 vicinities also are coupled in first plate electrode 114, and receive the second direct die analog signal PAS2 by the capacitive coupling phenomenon; Plate electrode 122 vicinities in Siping City's also are coupled in second plate electrode 115, and receive the second inverse analog signal NAS2 by the capacitive coupling phenomenon; Wherein, preferably in the present embodiment, the spacing of the spacing of first plate electrode 114 and the 3rd plate electrode 121 and second plate electrode 115 and Siping City's plate electrode 122 uses making between first plate electrode 114 and the 3rd plate electrode 121 and the good capacitive coupling effect of acquisition between second plate electrode 115 and Siping City's plate electrode 122 less than the spacing of first plate electrode 114 and second plate electrode 115 and the spacing of the 3rd plate electrode 121 and Siping City's plate electrode 122.
The synthetic module 123 of differential signal is electrically connected at the 3rd plate electrode 121 and Siping City's plate electrode 122, in order to the difference of the comparison second direct die analog signal PAS2 and the second inverse analog signal NAS2, and sends the second analog signal AS2 according to this; Wherein, preferably in the present embodiment, can have amplifier 126a and filter 127a between the synthetic module 123 of the 3rd plate electrode 121 and differential signal, use and amplify the signal noise that exceeds the predeterminated frequency scope among the second direct die analog signal PAS2 and the filtering second direct die analog signal PAS2; In like manner, can have amplifier 126b and filter 127b between the synthetic module 123 of Siping City's plate electrode 122 and differential signal, use and amplify the signal noise that exceeds the predeterminated frequency scope among the second inverse analog signal NAS2 and the filtering second inverse analog signal NAS2.
Analog to digital demodulation module 124 is electrically connected at the synthetic module 123 of differential signal, use the second analog signal AS2 is converted to the second digital signal DS2, wherein, preferably in the present embodiment, analog to digital demodulation module 124 compares the second analog signal AS2 with the reference voltage value of presetting, use that the second analog signal AS2 is converted to the second digital signal DS2; For example, as the second analog signal AS2 during greater than default reference voltage value, analog to digital demodulation module 124 judges that promptly the second digital signal DS2 is 1, otherwise, as the second analog signal AS2 during less than default reference voltage value, analog to digital demodulation module 124 judges that promptly the second digital signal DS2 is 0.
The second data processing module 125 is electrically connected at analog to digital demodulation module 124, uses to receive the second digital signal DS2.
Comprehensive the above, contactless transmission system 100 of the present invention does not need to connect transmission line by the transmission line slot and does the transfer of data action, but it is first plate electrode 114 and second plate electrode 115 of first electronic installation 11 is approaching with the 3rd plate electrode 121 and Siping City's plate electrode 122 of second electronic device 12 respectively, can do the transfer of data action, therefore except exempting known transmission system when frequently using the transfer of data action, transmission line that is caused or transmission line slot damage, and the user also need not carry transmission line, dark tool convenience.
Please continue to consult Fig. 2, Fig. 2 is for possessing the first electronic installation schematic diagram of contactless transmission and receiving circuit simultaneously.First electronic installation 11 of being given an example in the above-mentioned contactless transmission system 100 is as the usefulness that transmits data, and second electronic device 12 is as the usefulness that receives data, can understand easily, first electronic installation 11 ' can have the circuit that transmits with the reception data simultaneously.
First electronic installation 11 ' removes has the first data processing module 111, digital-to-analog modulation module 112, differential signal separates module 113, first plate electrode 114, second plate electrode 115, outside amplifier 116a and 116b and filter 117a and the 117b, amplifier 118a and 118b can also be set, synthetic module 119 of differential signal and analog to digital demodulation module 120 are with the usefulness as the reception data, only need utilize by switch S a and Sb being set between amplifier 116 and 118, and look first electronic installation 11 ' and desire to transmit or receive data action and switch and to reach easily.
See also Fig. 3, Fig. 3 is a preferable schematic appearance of the contactless transmission system of the present invention.Because contactless transmission system of the present invention need not used transmission line, also do not need first plate electrode 114, second plate electrode 115, the 3rd plate electrode 121 are contacted with Siping City's plate electrode 122, therefore, preferably in the present embodiment, first plate electrode 114 and second plate electrode 115 are arranged at the putting part inside of first electronic installation 11, and the 3rd plate electrode 121 and Siping City's plate electrode 122 are arranged at the putting part inside of second electronic device 12.
Comprehensive the above, because of first plate electrode 114, second plate electrode 115, the 3rd plate electrode 121 and Siping City's plate electrode 122 all can be arranged at first electronic installation 11 and second electronic device 12 inside, therefore, first electronic installation 11 does not need for contactless transmission system of the present invention perforate to be set on putting part with second electronic device 12, change to say it, can simplify the housing designs of electronic installation, to reach the performance of dustproof and waterproof easily, make electronic installation take into account practicality easily.
By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come category of the present invention is limited with the above-mentioned preferred embodiment that is disclosed.On the contrary, its objective is that hope can contain in the category of claim of being arranged in of various changes and tool equality institute of the present invention desire application.
Claims (10)
1. contactless transmission system comprises:
First electronic installation comprises:
The first data processing module is in order to send first digital signal;
One digital-to-analog modulation module is electrically connected at this first data processing module, uses that this first digital signal is converted to first analog signal;
One differential signal separates module, is electrically connected at this digital-to-analog modulation module, and using this first analog signal conversion is the first direct die analog signal and the first inverse analog signal;
First plate electrode is electrically connected at this differential signal and separates module, in order to receive this first direct die analog signal; And
Second plate electrode is electrically connected at this differential signal and separates module, in order to receive this first inverse analog signal; And
Second electronic device comprises:
The 3rd plate electrode, vicinity also is coupled in this first plate electrode, uses to receive the second direct die analog signal;
Siping City's plate electrode, vicinity also is coupled in this second plate electrode, uses to receive the second inverse analog signal;
One differential signal synthesizes module, is electrically connected at the 3rd plate electrode and this Siping City's plate electrode, in order to the difference of this second direct die analog signal and this second inverse analog signal relatively, and sends second analog signal according to this;
One analog to digital demodulation module is electrically connected at the synthetic module of this differential signal, and using this second analog signal conversion is second digital signal; And
The second data processing module is electrically connected at this analog to digital demodulation module, uses to receive this second digital signal.
2. contactless transmission system as claimed in claim 1 is characterized in that, this digital-to-analog modulation module has an oscillator, in order to this first digital signal is modulated to this first analog signal.
3. contactless transmission system as claimed in claim 1 is characterized in that, this first direct die analog signal is same as this first analog signal, and this first inverse analog signal is identical with this first analog signal amplitude and phase place is opposite.
4. contactless transmission system as claimed in claim 1, it is characterized in that, also comprise two amplifiers, being arranged at this first plate electrode respectively separates between the module with this differential signal, and this second plate electrode separates between the module with this differential signal, uses and amplifies this first direct die analog signal and this first inverse analog signal.
5. contactless transmission system as claimed in claim 1, it is characterized in that, also comprise two filters, being arranged at this first plate electrode respectively separates between the module with this differential signal, and this second plate electrode separates between the module with this differential signal, use in this first direct die analog signal of filtering and this first inverse analog signal, exceed the signal of a predeterminated frequency scope.
6. contactless transmission system as claimed in claim 1, it is characterized in that, also comprise two filters, be arranged at respectively between the synthetic module of the 3rd plate electrode and this differential signal, and between this Siping City's plate electrode and the synthetic module of this differential signal, use in this second direct die analog signal of filtering and this second inverse analog signal, exceed the signal of a predeterminated frequency scope.
7. contactless transmission system as claimed in claim 1, it is characterized in that, also comprise two amplifiers, be arranged at respectively between the synthetic module of the 3rd plate electrode and this differential signal, and between this Siping City's plate electrode and the synthetic module of this differential signal, use and amplify this second direct die analog signal and this second inverse analog signal.
8. contactless transmission system as claimed in claim 1 is characterized in that, this analog to digital demodulation module compares this second analog signal and a reference voltage value of presetting, and using this second analog signal conversion is this second digital signal.
9. contactless transmission system as claimed in claim 1 is characterized in that, this first plate electrode and this second plate electrode are arranged at a putting part inside of this first electronic installation.
10. contactless transmission system as claimed in claim 1 is characterized in that, the 3rd plate electrode and this Siping City's plate electrode are arranged at a putting part inside of this second electronic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101099406A CN102158260A (en) | 2010-02-12 | 2010-02-12 | Non-contact transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101099406A CN102158260A (en) | 2010-02-12 | 2010-02-12 | Non-contact transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102158260A true CN102158260A (en) | 2011-08-17 |
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ID=44439481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101099406A Pending CN102158260A (en) | 2010-02-12 | 2010-02-12 | Non-contact transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN102158260A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243608A (en) * | 1997-01-03 | 2000-02-02 | 滑动环及设备制造有限公司 | Device for contactless transmission of electrical signals and/or energy |
| CN1945982A (en) * | 2005-08-10 | 2007-04-11 | 索尼株式会社 | Communication system, transmitting device, transmitting method, receiving device, and receiving method |
| US20090143009A1 (en) * | 2007-11-29 | 2009-06-04 | Sony Corporation | Communication system and communication apparatus |
| CN101458883A (en) * | 2007-12-13 | 2009-06-17 | 株式会社日立显示器 | Capacitive coupling-type transmitting and receiving circuits for information signal |
-
2010
- 2010-02-12 CN CN2010101099406A patent/CN102158260A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243608A (en) * | 1997-01-03 | 2000-02-02 | 滑动环及设备制造有限公司 | Device for contactless transmission of electrical signals and/or energy |
| CN1945982A (en) * | 2005-08-10 | 2007-04-11 | 索尼株式会社 | Communication system, transmitting device, transmitting method, receiving device, and receiving method |
| US20090143009A1 (en) * | 2007-11-29 | 2009-06-04 | Sony Corporation | Communication system and communication apparatus |
| CN101458883A (en) * | 2007-12-13 | 2009-06-17 | 株式会社日立显示器 | Capacitive coupling-type transmitting and receiving circuits for information signal |
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Application publication date: 20110817 |