CN104950993B - A kind of portable mobile apparatus, host and docking station - Google Patents
A kind of portable mobile apparatus, host and docking station Download PDFInfo
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- CN104950993B CN104950993B CN201410123470.7A CN201410123470A CN104950993B CN 104950993 B CN104950993 B CN 104950993B CN 201410123470 A CN201410123470 A CN 201410123470A CN 104950993 B CN104950993 B CN 104950993B
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Abstract
The invention discloses a kind of portable mobile apparatus, host and docking stations, belong to computer realm.The equipment includes：Host and docking station, host includes the first connector, display module and the first control module, first connector includes the first positive auxiliary signal terminal, the first negative auxiliary signal terminal and the first differential amplifier circuit, resistance and first is drawn high equipped with first drag down resistance in first differential amplifier circuit, first, which draws high resistance, is connected between power supply and the first positive auxiliary signal terminal, first drag down resistance be connected between the first negative auxiliary signal terminal；Docking station includes the second connector and display interface, second connector includes the second positive auxiliary signal terminal, the second negative auxiliary signal terminal and the second differential amplifier circuit, resistance and second is drawn high equipped with second drag down resistance in second differential amplifier circuit, second draw high resistance be connected between the second positive auxiliary signal terminal, second, which drags down resistance, is connected between power supply and the second negative auxiliary signal terminal.
Description
Technical field
The present invention relates to computer realm, more particularly to a kind of portable mobile apparatus, host and docking station.
Background technology
With the development of mobile technology, existing mobile device usually can be by two parts of host and docking station (Dock)
It realizes.By taking tablet computer as an example, host machine part is used for realizing that host both may be implemented in the major function of mobile device, docking station
It is vertical to place, and physical keyboard, expansion interface etc. can be provided for host.
Wherein host is connected with docking station by connector, by taking the connector that a kind of single line connection docking station uses as an example,
There are the connector 24 pins, this 24 pins to be mainly used for transmitting power supply signal, display signal and universal serial bus
Signal etc..
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems：
Existing connector pinout is all used, and (provides idle pin to be used for if necessary to carry out Function Extension
New function), then the size for needing the design for changing connector or increasing connector is not easy to system extension and needs additional warp
Ji input.
Invention content
In order to solve the prior art if necessary to docking station carry out Function Extension, then need change connector design or
The problem of increasing the size of connector, an embodiment of the present invention provides a kind of portable mobile apparatus, host and docking stations.It is described
Technical solution is as follows：
On the one hand, an embodiment of the present invention provides a kind of portable mobile apparatus, the equipment includes：Host and extension
Depressed place,
The host includes the first connector, display module and the first control module, and first connector includes first
Positive auxiliary signal terminal, the first negative auxiliary signal terminal and the first differential amplifier circuit, the first positive auxiliary signal terminal and
The first negative auxiliary signal terminal is connect by first differential amplifier circuit with the display module, first difference
Resistance and first being drawn high equipped with first in amplifying circuit and dragging down resistance, described first, which draws high resistance, is connected on power supply and described first
Between positive auxiliary signal terminal, described first drag down resistance be connected between the described first negative auxiliary signal terminal；
The docking station includes the second connector and display interface, and second connector includes the second positive auxiliary signal end
Son, the second negative auxiliary signal terminal and the second differential amplifier circuit, the second positive auxiliary signal terminal and described second negative auxiliary
It helps signal terminal to be connect with the display interface by second differential amplifier circuit, is set in second differential amplifier circuit
There is second to draw high resistance and second and drag down resistance, described second draw high resistance be connected on the described second positive auxiliary signal terminal
Between, described second, which drags down resistance, is connected between power supply and the second negative auxiliary signal terminal；
Described first draws high-resistance resistance value to draw high-resistance resistance value much larger than described second, and described first drags down resistance
Resistance value draw low-resistance resistance value not equal to described second；
First control module is used to detect the first positive auxiliary signal terminal and the first negative auxiliary signal terminal
Voltage change, and judge whether the docking station accesses the host according to the voltage change.
In an implementation of the embodiment of the present invention,
First control module draws low-resistance resistance value low-resistance much larger than second drawing for working as described first
Resistance value, and detect the voltage of the described first positive auxiliary signal terminal by when low get higher or the first negative auxiliary signal terminal
Voltage when being lower by height, judge that the docking station accesses the host.
In another realization method of the embodiment of the present invention,
First control module draws low-resistance resistance value low-resistance much larger than first drawing for working as described second
Resistance value, and when detecting the voltage of the described first positive auxiliary signal terminal by low get higher, judge that the docking station accesses the master
Machine.
In another realization method of the embodiment of the present invention, the docking station includes the second control module, for detecting
The voltage change of the second positive auxiliary signal terminal and the second negative auxiliary signal terminal, and according to the described second positive auxiliary
The voltage change of signal terminal and the second negative auxiliary signal terminal judges whether the docking station accesses the host.
In another realization method of the embodiment of the present invention, first differential amplifier circuit includes being sequentially connected in series in institute
Described first stated between power supply and the ground draws high resistance, the first capacitance, first resistor, second resistance, the second capacitance and institute
It states first and drags down resistance, first differential amplifier circuit further includes the first amplifier and the second amplifier, first amplification
The input terminal of device is connect with the display module, and two output ends of first amplifier are connected on first capacitance and institute respectively
It states between first resistor and between second capacitance and the second resistance, two input terminals of second amplifier and institute
Two output ends for stating the first amplifier are in parallel, and the output end of second amplifier is connect with the display module, and described first
Indirect reference voltage in resistance and the second resistance, the first positive auxiliary signal terminal be connected on described first draw high resistance and
Between first capacitance, the first negative auxiliary signal terminal be connected on described first drag down resistance and second capacitance it
Between.
In another realization method of the embodiment of the present invention, second differential amplifier circuit includes being sequentially connected in series in institute
Described second resistance, third capacitance, 3rd resistor, the 4th resistance, the 4th capacitance and institute are drawn high between the power supply with stating
It states second and drags down resistance, second differential amplifier circuit further includes third amplifier and the 4th amplifier, the third amplification
The input terminal of device is connect with the display interface, and two output ends of the third amplifier are connected on the third capacitance and institute respectively
It states between 3rd resistor and between the 4th capacitance and the 4th resistance, two input terminals of the 4th amplifier and institute
Two output ends for stating third amplifier are in parallel, and the output end of the 4th amplifier is connect with the display interface, the third
Indirect reference voltage in resistance and the 4th resistance, the second positive auxiliary signal terminal be connected on described second draw high resistance and
Between the third capacitance, the second negative auxiliary signal terminal be connected on described second drag down resistance and the 4th capacitance it
Between.
In another realization method of the embodiment of the present invention, the docking station further includes metal oxide layer semiconductcor field
Imitate transistor, 5V power supplys and universal serial bus pressure-wire, the source electrode of the metal oxide layer semiconductcor field effect transisto and leakage
Pole is connect with the 5V power supplys and the universal serial bus pressure-wire respectively, and the metal oxide layer semiconductcor field effect is brilliant
The grid of body pipe is connect with the described second positive auxiliary signal terminal.
On the other hand, the embodiment of the present invention additionally provides a kind of host, and the host includes the first connector, display module
With the first control module, first connector includes the first positive auxiliary signal terminal and the first negative auxiliary signal terminal and the
One differential amplifier circuit, the first positive auxiliary signal terminal and the first negative auxiliary signal terminal pass through first difference
Amplifying circuit is connect with the display module, and drawing high resistance and first equipped with first in first differential amplifier circuit drags down electricity
Resistance, described first, which draws high resistance, is connected between power supply and the first positive auxiliary signal terminal, and described first drags down resistance string
Be associated between the described first negative auxiliary signal terminal series-shunt；
Described first draws high-resistance resistance value to draw high-resistance resistance value much larger than second in docking station, and described first draws
Low-resistance resistance value is not equal to the second low-resistance resistance value of drawing in the docking station；
First control module is used to detect the first positive auxiliary signal terminal and the first negative auxiliary signal terminal
Voltage change, and judge whether the docking station accesses the host according to the voltage change.
In an implementation of the embodiment of the present invention,
First control module draws low-resistance resistance value low-resistance much larger than second drawing for working as described first
Resistance value, and detect the voltage of the described first positive auxiliary signal terminal by when low get higher or the first negative auxiliary signal terminal
Voltage when being lower by height, judge that the docking station accesses the host.
In another realization method of the embodiment of the present invention,
First control module draws low-resistance resistance value low-resistance much larger than first drawing for working as described second
Resistance value, and when detecting the voltage of the described first positive auxiliary signal terminal by low get higher, judge that the docking station accesses the master
Machine.
In another realization method of the embodiment of the present invention, first differential amplifier circuit includes being sequentially connected in series in institute
Described first stated between power supply and the ground draws high resistance, the first capacitance, first resistor, second resistance, the second capacitance and institute
It states first and drags down resistance, first differential amplifier circuit further includes the first amplifier and the second amplifier, first amplification
The input terminal of device is connect with the display module, and two output ends of first amplifier are connected on first capacitance and institute respectively
It states between first resistor and between second capacitance and the second resistance, two input terminals of second amplifier and institute
Two output ends for stating the first amplifier are in parallel, and the output end of second amplifier is connect with the display module, and described first
Indirect reference voltage in resistance and the second resistance, the first positive auxiliary signal terminal be connected on described first draw high resistance and
Between first capacitance, the first negative auxiliary signal terminal be connected on described first drag down resistance and second capacitance it
Between.
On the other hand, an embodiment of the present invention provides a kind of docking station, the docking station includes the second connector and display
Interface, second connector include the second positive auxiliary signal terminal, the second negative auxiliary signal terminal and the second differential amplification electricity
Road, the second positive auxiliary signal terminal and the second negative auxiliary signal terminal pass through second differential amplifier circuit and institute
Display interface connection is stated, drawing high resistance and second equipped with second in second differential amplifier circuit drags down resistance, and described second
Draw high resistance be connected between the described second positive auxiliary signal terminal, described second drag down resistance be connected on power supply with it is described
Between second negative auxiliary signal terminal；
First in host draws high-resistance resistance value to draw high-resistance resistance value much larger than described second, and in the host
First draws low-resistance resistance value to draw low-resistance resistance value not equal to described second.
In an implementation of the embodiment of the present invention, the docking station includes the second control module, for detecting
The voltage change of the second positive auxiliary signal terminal and the second negative auxiliary signal terminal is stated, and is judged according to the voltage change
Whether the docking station accesses the host.
In another realization method of the embodiment of the present invention, second differential amplifier circuit includes being sequentially connected in series in institute
Described second resistance, third capacitance, 3rd resistor, the 4th resistance, the 4th capacitance and institute are drawn high between the power supply with stating
It states second and drags down resistance, second differential amplifier circuit further includes third amplifier and the 4th amplifier, the third amplification
The input terminal of device is connect with the display interface, and two output ends of the third amplifier are connected on the third capacitance and institute respectively
It states between 3rd resistor and between the 4th capacitance and the 4th resistance, two input terminals of the 4th amplifier and institute
Two output ends for stating third amplifier are in parallel, and the output end of the 4th amplifier is connect with the display interface, the third
Indirect reference voltage in resistance and the 4th resistance, the second positive auxiliary signal terminal be connected on described second draw high resistance and
Between the third capacitance, the second negative auxiliary signal terminal be connected on described second drag down resistance and the 4th capacitance it
Between.
In another realization method of the embodiment of the present invention, the docking station further includes metal oxide layer semiconductcor field
Imitate transistor, 5V power supplys and universal serial bus pressure-wire, the source electrode of the metal oxide layer semiconductcor field effect transisto and leakage
Pole is connect with the 5V power supplys and the universal serial bus pressure-wire respectively, and the metal oxide layer semiconductcor field effect is brilliant
The grid of body pipe is connect with the described second positive auxiliary signal terminal.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
By by dragging down in host and docking station and drawing high resistive arrangement into following form：It is just auxiliary with first in host
Help that signal terminal connects much larger than connecting with the second positive auxiliary signal terminal in docking station, and it is negative with first in host
The connection of auxiliary signal terminal not equal to connect with the second negative auxiliary signal terminal in docking station so that in docking station insertion
The voltage of the first positive auxiliary signal terminal or the first negative auxiliary signal terminal changes when host, such first control mould
Block can detect docking station access according to voltage change, since the detecting function is realized by auxiliary signal terminal, from
And the terminal for being originally used for detecting is saved, the terminal so as to be originally used for detecting is used for new function so that needs
It when carrying out Function Extension, haves no need to change the design of connector or increases the size of connector, extended convenient for system and economy is thrown
Enter low.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram for the portable mobile apparatus that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of portable mobile apparatus provided by Embodiment 2 of the present invention；
Fig. 3 is the structural schematic diagram of portable mobile apparatus provided by Embodiment 2 of the present invention；
Fig. 4 is the structural schematic diagram of portable mobile apparatus provided by Embodiment 2 of the present invention；
Fig. 5 is the structural schematic diagram for the host that the embodiment of the present invention three provides；
Fig. 6 is the structural schematic diagram for the host that the embodiment of the present invention four provides；
Fig. 7 is the structure schematic diagram for the host knot that the embodiment of the present invention four provides；
Fig. 8 is the structural schematic diagram for the docking station that the embodiment of the present invention five provides；
Fig. 9 is the structural schematic diagram for the docking station that the embodiment of the present invention six provides；
Figure 10 is the structural schematic diagram for the docking station that the embodiment of the present invention six provides；
Figure 11 is the structural schematic diagram for the docking station that the embodiment of the present invention six provides.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
An embodiment of the present invention provides a kind of portable mobile apparatus, and referring to Fig. 1, which includes：Host 110 and extension
Depressed place 120；
Host 110 includes the first connector 111, display module 112 and the first control module 113, the first connector 111 packet
The first positive auxiliary signal terminal 111a, the first negative auxiliary signal terminal 111b and the first differential amplifier circuit 111c are included, first just
The negative auxiliary signal terminal 111b of auxiliary signal terminal 111a and first pass through the first differential amplifier circuit 111c and display module 112
It connects, drawing high resistance and first equipped with first in the first differential amplifier circuit 111c drags down resistance, and first, which draws high resistance, is connected on
Between power supply and the first positive auxiliary signal terminal 111a, first drag down resistance be connected on the first negative auxiliary signal terminal 111b
Between；
Docking station 120 includes the second connector 121 and display interface 122, and the second connector 121 includes the second positive auxiliary letter
Number terminal 121a, the second negative auxiliary signal terminal 121b and the second differential amplifier circuit 121c, the second positive auxiliary signal terminal
The negative auxiliary signal terminal 121b of 121a and second are connect by the second differential amplifier circuit 121c with display interface 122, and second is poor
Draw high resistance and second equipped with second in point amplifying circuit 121c and drag down resistance, second draw high resistance be connected on it is second just auxiliary
It helps between signal terminal 121a, second, which drags down resistance, is connected between power supply and the second negative auxiliary signal terminal 121b；
First draws high-resistance resistance value to draw high-resistance resistance value much larger than second, and first draws low-resistance resistance value to be not equal to
Second draws low-resistance resistance value；
First control module 113 is for detecting the first positive negative auxiliary signal terminal 111b of auxiliary signal terminal 111a and first
Voltage change, and according to voltage change judge docking station 120 whether access host 110.
Wherein, much larger than referring to the resistance value of two resistance not in an order of magnitude.For example, first draws high-resistance resistance value
It it is 1M ohm, the second high-resistance resistance value of drawing is 100K ohm.
The embodiment of the present invention is by by dragging down in host and docking station and drawing high resistive arrangement into following form：With host
In the first positive auxiliary signal terminal connection much larger than being connect with the second positive auxiliary signal terminal in docking station, and with master
The first negative auxiliary signal terminal connection in machine not equal to being connect with the second negative auxiliary signal terminal in docking station so that
When docking station is inserted into host, the first positive auxiliary signal terminal or the voltage of the first negative auxiliary signal terminal change, and such the
One control module can detect docking station access according to voltage change, since the detecting function is real by auxiliary signal terminal
Existing, to save the terminal for being originally used for detecting, the terminal so as to be originally used for detecting is used for new function, makes
Must need carry out Function Extension when, have no need to change connector design or increase connector size, convenient for system extension and
Economic input is low.
Embodiment two
An embodiment of the present invention provides a kind of portable mobile apparatus, and referring to Fig. 2-Fig. 4, which includes：210 He of host
Docking station 220；
Host 210 includes the first connector 211, display module 212 and the first control module 213, the first connector 211 packet
The first positive auxiliary signal terminal 211a, the first negative auxiliary signal terminal 211b and the first differential amplifier circuit 211c are included, first just
The negative auxiliary signal terminal 211b of auxiliary signal terminal 211a and first pass through the first differential amplifier circuit 211c and display module 212
It connects, drawing high resistance R1 and first equipped with first in the first differential amplifier circuit 211c drags down resistance R2, and first draws high resistance R1
Be connected between power supply and the first positive auxiliary signal terminal 211a, first drag down resistance R2 be connected on the first negative auxiliary signal
Between terminal 211b；
Docking station 220 includes the second connector 221 and display interface 222, and the second connector 221 includes the second positive auxiliary letter
Number terminal 221a, the second negative auxiliary signal terminal 221b and the second differential amplifier circuit 221c, the second positive auxiliary signal terminal
The negative auxiliary signal terminal 221b of 221a and second are connect by the second differential amplifier circuit 221c with display interface 222, and second is poor
Draw high resistance R3 and second equipped with second in point amplifying circuit 221c and drag down resistance R4, second draw high resistance R3 be connected on the
Between two positive auxiliary signal terminal 221a, second drag down resistance R4 be connected on power supply and the second negative auxiliary signal terminal 221b it
Between；
First draws high the resistance value that the resistance value of resistance R1 draws high resistance R3 much larger than second, and the first resistance value for dragging down resistance R2
The resistance value for dragging down resistance R4 not equal to second；
First control module 213 is for detecting the first positive negative auxiliary signal terminal 211b of auxiliary signal terminal 211a and first
Voltage change, and according to voltage change judge docking station 220 whether access host 210.
Wherein, much larger than referring to the resistance value of two resistance not in an order of magnitude.For example, first draws high-resistance resistance value
It it is 1M ohm, the second high-resistance resistance value of drawing is 100K ohm.
In one implementation, the first control module 213, the resistance value for dragging down resistance R2 when first are much larger than second
The resistance value of resistance R4 is dragged down, and detects the voltage of the first positive auxiliary signal terminal 211a by when low get higher or the first negative auxiliary
When the voltage of signal terminal 211b is lower by height, 220 access host 210 of docking station is judged.
For example, first draws high resistance and first to draw low-resistance resistance value be 1M ohm, second, which draws high resistance and second, drags down
The resistance value of resistance is 100K ohm.At this point, when docking station is inserted into host, the voltage of the first positive auxiliary signal terminal 211a is by low
When getting higher, the voltage of the first negative auxiliary signal terminal 211b is lower by height.And the first control module 213 needs to detect wherein one
The voltage change of a signal terminal can judge the access of docking station.
In another implementation, the first control module 213, for dragging down the resistance value of resistance R4 much larger than the when second
One drags down the resistance value of resistance R2, and when detecting the voltage of the first positive auxiliary signal terminal 211a by low get higher, and judges docking station
220 access hosts 210.
For example, first draws high resistance and second to draw low-resistance resistance value be 1M ohm, second, which draws high resistance and first, drags down
The resistance value of resistance is 100K ohm.At this point, the voltage of the first positive auxiliary signal terminal 211a is got higher by low.
Further, docking station 220 includes the second control module 223, for detecting the second positive auxiliary signal terminal 221a
With the voltage change of the second negative auxiliary signal terminal 221b, and according to voltage change judge docking station 220 whether access host
210.Judgment mode is identical as the first control module 213 is not repeating here for its specific detection.
In the present embodiment, the first differential amplifier circuit 211c includes that first be sequentially connected in series between power supply and ground is drawn high
Resistance R1, the first capacitance C1, first resistor R5, second resistance R6, the second capacitance C2 and first drag down resistance R2, and the first difference is put
Big circuit 211c further includes the input terminal and display module 212 of the first amplifier A1 and the second amplifier A2, the first amplifier A1
Connection, two output ends of the first amplifier A1 be connected on respectively between the first capacitance C1 and first resistor R5 and the second capacitance C2 with
Between second resistance R6, two input terminals of the second amplifier A2 are in parallel with two output ends of the first amplifier A1, the second amplifier
The output end of A2 is connect with display module 212, indirect reference voltage in first resistor R5 and second resistance R6, the first positive auxiliary letter
Number terminal 211a is connected on first and draws high between resistance R1 and the first capacitance C1, and the first negative auxiliary signal terminal 211b is connected on the first drawing
Between low resistance R2 and the second capacitance C2.
Wherein, supply voltage can be 3.3V, and first resistor and second resistance resistance value can be 50 ohm.
In the present embodiment, the second differential amplifier circuit 221c includes that second be sequentially connected in series between ground and power supply is drawn high
Resistance R3, third capacitance C3,3rd resistor R7, the 4th resistance R8, the 4th capacitance C4 and second drag down resistance R4, and the second difference is put
Big circuit 221c further includes third amplifier A3 and the 4th amplifier A4, input terminal and the display interface 222 of third amplifier A3
Connection, two output ends of third amplifier A3 be connected on respectively between third capacitance C3 and 3rd resistor R7 and the 4th capacitance C4 with
Between 4th resistance R8, two input terminals of the 4th amplifier A4 are in parallel with two output ends of third amplifier A3, the 4th amplifier
The output end of A4 is connect with display interface 222, indirect reference voltage in 3rd resistor R7 and the 4th resistance R8, the second positive auxiliary letter
Number terminal 221a is connected on second and draws high between resistance R3 and third capacitance C3, and the second negative auxiliary signal terminal 221b is connected on the second drawing
Between low resistance R4 and the 4th capacitance C4.
Wherein, supply voltage can be 3.3V, and 3rd resistor and the 4th resistance can be 50 ohm.
Further, docking station 220 further includes metal oxide layer semiconductcor field effect transisto 224,5V power supplys 225 and leads to
With universal serial bus pressure-wire 226, the source electrode and drain electrode of metal oxide layer semiconductcor field effect transisto 224 respectively with 5V power supplys 225
And universal serial bus pressure-wire 226 connects, the grid of metal oxide layer semiconductcor field effect transisto 224 is just auxiliary with second
Help signal terminal 221a connections.
After docking station access host, the voltage of the second positive auxiliary signal terminal 221a increases, to make metal oxide layer
The source electrode and drain electrode of semiconductcor field effect transistor 224 is connected, and 5V power supplys 225 are connected with universal serial bus pressure-wire 226 at this time,
Use 5V power supplys as universal serial bus (Universal Serial Bus, abbreviation " USB ") voltage signal to realize,
USB device resetting is realized, the pin of connector is saved.
The embodiment of the present invention is by by dragging down in host and docking station and drawing high resistive arrangement into following form：With host
In the first positive auxiliary signal terminal connection much larger than being connect with the second positive auxiliary signal terminal in docking station, and with master
The first negative auxiliary signal terminal connection in machine not equal to being connect with the second negative auxiliary signal terminal in docking station so that
When docking station is inserted into host, the first positive auxiliary signal terminal or the voltage of the first negative auxiliary signal terminal change, and such the
One control module can detect docking station access according to voltage change, since the detecting function is real by auxiliary signal terminal
Existing, to save the terminal for being originally used for detecting, the terminal so as to be originally used for detecting is used for new function, makes
Must need carry out Function Extension when, have no need to change connector design or increase connector size, convenient for system extension and
Economic input is low.
Embodiment three
An embodiment of the present invention provides a kind of hosts, and referring to Fig. 5, which includes the first connector 301, display module
302 and first control module 303, the first connector 301 include the first positive auxiliary signal terminal 301a, the first negative auxiliary signal end
Sub- 301b and the first differential amplifier circuit 301c, the first positive negative auxiliary signal terminal 301b of auxiliary signal terminal 301a and first are logical
It crosses the first differential amplifier circuit 301c to connect with display module 302, electricity is drawn high equipped with first in the first differential amplifier circuit 301c
Resistance and first drags down resistance, and first, which draws high resistance, is connected between power supply and the first positive auxiliary signal terminal 301a, and first drags down
Resistance be connected between the first negative auxiliary signal terminal 301b；
First draws high-resistance resistance value to draw high-resistance resistance value much larger than second in docking station, and the first drawing is low-resistance
Resistance value is not equal to the second low-resistance resistance value of drawing in docking station；
First control module 303 is for detecting the first positive negative auxiliary signal terminal 301b of auxiliary signal terminal 301a and first
Voltage change, and according to voltage change judge docking station whether access host.
Wherein, much larger than referring to the resistance value of two resistance not in an order of magnitude.For example, first draws high-resistance resistance value
It it is 1M ohm, the second high-resistance resistance value of drawing is 100K ohm.
The embodiment of the present invention is by by dragging down in host and drawing high resistive arrangement into following form：With first in host
Positive auxiliary signal terminal connection much larger than being connect with the second positive auxiliary signal terminal in docking station, and with the in host
One negative auxiliary signal terminal connection not equal to being connect with the second negative auxiliary signal terminal in docking station so that in docking station
The voltage of the first positive auxiliary signal terminal or the first negative auxiliary signal terminal changes when being inserted into host, such first control mould
Block can detect docking station access according to voltage change, since the detecting function is realized by auxiliary signal terminal, from
And the terminal for being originally used for detecting is saved, the terminal so as to be originally used for detecting is used for new function so that needs
It when carrying out Function Extension, haves no need to change the design of connector or increases the size of connector, extended convenient for system and economy is thrown
Enter low.
Example IV
An embodiment of the present invention provides a kind of hosts, and referring to Fig. 6 and Fig. 7, which includes the first connector 401, display
Module 402 and the first control module 403, the first connector 401 include the first positive auxiliary signal terminal 401a, the first negative auxiliary letter
Number terminal 401b and the first differential amplifier circuit 401c, the first positive negative auxiliary signal terminals of auxiliary signal terminal 401a and first
401b is connect by the first differential amplifier circuit 401c with display module 402, and first is equipped in the first differential amplifier circuit 401c
Draw high resistance R1 and first and drag down resistance R2, first draw high resistance R1 be connected on power supply and the first positive auxiliary signal terminal 401a it
Between, first drag down resistance R2 be connected between the first negative auxiliary signal terminal 401b；
First resistance value for drawing high resistance R1 draws high-resistance resistance value much larger than second in docking station, and first drags down resistance
The resistance value of R2 is not equal to the second low-resistance resistance value of drawing in docking station；
First control module 403 is for detecting the first positive negative auxiliary signal terminal 401b of auxiliary signal terminal 401a and first
Voltage change, and according to voltage change judge docking station whether access host.
Wherein, much larger than referring to the resistance value of two resistance not in an order of magnitude.For example, first draws high-resistance resistance value
It it is 1M ohm, the second high-resistance resistance value of drawing is 100K ohm.
In one implementation, the first control module 403, the resistance value for dragging down resistance R2 when first are much larger than second
The resistance value of resistance R4 is dragged down, and detects the voltage of the first positive auxiliary signal terminal 401a by when low get higher or the first negative auxiliary
When the voltage of signal terminal 401b is lower by height, docking station access host is judged.
For example, first draws high resistance and first to draw low-resistance resistance value be 1M ohm, second, which draws high resistance and second, drags down
The resistance value of resistance is 100K ohm.At this point, when docking station is inserted into host, the voltage of the first positive auxiliary signal terminal 401a is by low
When getting higher, the voltage of the first negative auxiliary signal terminal 401b is lower by height.And the first control module 213 needs to detect wherein one
The voltage change of a signal terminal can judge the access of docking station.
In another implementation, the first control module 403, for dragging down the resistance value of resistance R4 much larger than the when second
One drags down the resistance value of resistance R2, and when detecting the voltage of the first positive auxiliary signal terminal 401a by low get higher, and judges docking station
Access host.
For example, first draws high resistance and second to draw low-resistance resistance value be 1M ohm, second, which draws high resistance and first, drags down
The resistance value of resistance is 100K ohm.At this point, the voltage of the first positive auxiliary signal terminal 401a is got higher by low.
In the present embodiment, the first differential amplifier circuit 401c includes that first be sequentially connected in series between power supply and ground is drawn high
Resistance R1, the first capacitance C1, first resistor R5, second resistance R6, the second capacitance C2 and first drag down resistance R2, and the first difference is put
Big circuit 401c further includes the input terminal and display module 402 of the first amplifier A1 and the second amplifier A2, the first amplifier A1
Connection, two output ends of the first amplifier A1 be connected on respectively between the first capacitance C1 and first resistor R5 and the second capacitance C2 with
Between second resistance R6, two input terminals of the second amplifier A2 are in parallel with two output ends of the first amplifier A1, the second amplifier
The output end of A2 is connect with display module 402, indirect reference voltage in first resistor R5 and second resistance R6, the first positive auxiliary letter
Number terminal 401a is connected on first and draws high between resistance R1 and the first capacitance C1, and the first negative auxiliary signal terminal 401b is connected on the first drawing
Between low resistance R2 and the second capacitance C2.
Wherein, supply voltage can be 3.3V, and first resistor and second resistance resistance value can be 50 ohm.
The embodiment of the present invention is by by dragging down in host and drawing high resistive arrangement into following form：With first in host
Positive auxiliary signal terminal connection much larger than being connect with the second positive auxiliary signal terminal in docking station, and with the in host
One negative auxiliary signal terminal connection not equal to being connect with the second negative auxiliary signal terminal in docking station so that in docking station
The voltage of the first positive auxiliary signal terminal or the first negative auxiliary signal terminal changes when being inserted into host, such first control mould
Block can detect docking station access according to voltage change, since the detecting function is realized by auxiliary signal terminal, from
And the terminal for being originally used for detecting is saved, the terminal so as to be originally used for detecting is used for new function so that needs
It when carrying out Function Extension, haves no need to change the design of connector or increases the size of connector, extended convenient for system and economy is thrown
Enter low.
Embodiment five
An embodiment of the present invention provides a kind of docking stations, and referring to Fig. 8, which includes the second connector 501 and display
Interface 502, the second connector 501 include the second positive auxiliary signal terminal 501a, the second negative auxiliary signal terminal 501b and second
Differential amplifier circuit 501c, the second positive negative auxiliary signal terminal 501b of auxiliary signal terminal 501a and second are put by the second difference
Big circuit 501c is connect with display interface 502, and drawing high resistance and second equipped with second in the second differential amplifier circuit 501c drags down
Resistance, second draw high resistance be connected between the second positive auxiliary signal terminal 501a, second, which drags down resistance, is connected on power supply
Between the second negative auxiliary signal terminal 501b；
First in host draws high-resistance resistance value to draw high-resistance resistance value much larger than second, and first in host drags down
The resistance value of resistance draws low-resistance resistance value not equal to second.
Wherein, much larger than referring to the resistance value of two resistance not in an order of magnitude.For example, first draws high-resistance resistance value
It it is 1M ohm, the second high-resistance resistance value of drawing is 100K ohm.
The embodiment of the present invention is by by dragging down in docking station and drawing high resistive arrangement into following form：With in host
One positive auxiliary signal terminal connection much larger than being connect with the second positive auxiliary signal terminal in docking station, and in host
The first negative auxiliary signal terminal connection not equal to being connect with the second negative auxiliary signal terminal in docking station so that extending
The voltage of the first positive auxiliary signal terminal or the first negative auxiliary signal terminal changes when host is inserted into depressed place, such first control
Module can detect docking station access according to voltage change, since the detecting function is realized by auxiliary signal terminal,
To save the terminal for being originally used for detecting, the terminal so as to be originally used for detecting is used for new function so that needs
When carrying out Function Extension, haves no need to change the design of connector or increase the size of connector, convenient for system extension and economy
It puts into low.
Embodiment six
An embodiment of the present invention provides a kind of docking stations, and referring to Fig. 9-Figure 11, which includes 601 He of the second connector
Display interface 602, the second connector 601 include the second positive auxiliary signal terminal 601a, the second negative auxiliary signal terminal 601b and
Second differential amplifier circuit 601c, the second positive negative auxiliary signal terminal 601b of auxiliary signal terminal 601a and second is poor by second
Point amplifying circuit 601c is connect with display interface 602, and resistance R3 and the are drawn high equipped with second in the second differential amplifier circuit 601c
Two drag down resistance R4, second draw high resistance R3 be connected between the second positive auxiliary signal terminal 601a, second drags down resistance
R4 is connected between power supply and the second negative auxiliary signal terminal 601b；
First in host draws high-resistance resistance value to be much larger than the second resistance value for drawing high resistance R3, and first in host is drawn
Low-resistance resistance value drags down the resistance value of resistance R4 not equal to second.
Wherein, much larger than referring to the resistance value of two resistance not in an order of magnitude.For example, first draws high-resistance resistance value
It it is 1M ohm, the second high-resistance resistance value of drawing is 100K ohm.
Further, docking station includes the second control module 603, for detecting the second positive auxiliary signal terminal 601a and the
The voltage change of two negative auxiliary signal terminal 601b, and according to voltage change judge docking station 600 whether access host.It is specific
Judgment mode is identical as the first control module in embodiment two is not repeating here for detection.
In the present embodiment, the second differential amplifier circuit 601c includes that second be sequentially connected in series between ground and power supply is drawn high
Resistance R3, third capacitance C3,3rd resistor R7, the 4th resistance R8, the 4th capacitance C4 and second drag down resistance R4, and the second difference is put
Big circuit 601c further includes third amplifier A3 and the 4th amplifier A4, input terminal and the display interface 602 of third amplifier A3
Connection, two output ends of third amplifier A3 be connected on respectively between third capacitance C3 and 3rd resistor R7 and the 4th capacitance C4 with
Between 4th resistance R8, two input terminals of the 4th amplifier A4 are in parallel with two output ends of third amplifier A3, the 4th amplifier
The output end of A4 is connect with display interface 602, indirect reference voltage in 3rd resistor R7 and the 4th resistance R8, the second positive auxiliary letter
Number terminal 601a is connected on second and draws high between resistance R3 and third capacitance C3, and the second negative auxiliary signal terminal 601b is connected on the second drawing
Between low resistance R4 and the 4th capacitance C4.
Wherein, supply voltage can be 3.3V, and 3rd resistor and the 4th resistance can be 50 ohm.
Further, docking station further includes metal oxide layer semiconductcor field effect transisto 604,5V power supplys 605 and general string
Row bus pressure-wire 606, the source electrode and drain electrode of metal oxide layer semiconductcor field effect transisto 604 respectively with 5V power supplys 605 and
Universal serial bus pressure-wire 606 connects, and the grid of metal oxide layer semiconductcor field effect transisto 604 and the second positive auxiliary are believed
Number terminal 601a connections.
After docking station access host, the voltage of the second positive auxiliary signal terminal 601a increases, to make metal oxide layer
The source electrode and drain electrode of semiconductcor field effect transistor 604 is connected, and 5V power supplys 605 are connected with universal serial bus pressure-wire 606 at this time,
It uses 5V power supplys as USB voltage signals to realize, realizes USB device resetting, save the pin of connector.
The embodiment of the present invention is by by dragging down in docking station and drawing high resistive arrangement into following form：With in host
One positive auxiliary signal terminal connection much larger than being connect with the second positive auxiliary signal terminal in docking station, and in host
The first negative auxiliary signal terminal connection not equal to being connect with the second negative auxiliary signal terminal in docking station so that extending
The voltage of the first positive auxiliary signal terminal or the first negative auxiliary signal terminal changes when host is inserted into depressed place, such first control
Module can detect docking station access according to voltage change, since the detecting function is realized by auxiliary signal terminal,
To save the terminal for being originally used for detecting, the terminal so as to be originally used for detecting is used for new function so that needs
When carrying out Function Extension, haves no need to change the design of connector or increase the size of connector, convenient for system extension and economy
It puts into low.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (15)
1. a kind of portable mobile apparatus, the equipment include：Host and docking station, which is characterized in that
The host includes the first connector, display module and the first control module, and first connector includes first just auxiliary
Help signal terminal, the first negative auxiliary signal terminal and the first differential amplifier circuit, the first positive auxiliary signal terminal and described
First negative auxiliary signal terminal is connect by first differential amplifier circuit with the display module, first differential amplification
Resistance and first being drawn high equipped with first in circuit and dragging down resistance, described first, which draws high resistance, is connected on power supply and described first just auxiliary
Help between signal terminal, described first drag down resistance be connected between the described first negative auxiliary signal terminal；
The docking station include the second connector and display interface, second connector include the second positive auxiliary signal terminal,
Second negative auxiliary signal terminal and the second differential amplifier circuit, the second positive auxiliary signal terminal and the second negative auxiliary letter
Number terminal is connect by second differential amplifier circuit with the display interface, and the is equipped in second differential amplifier circuit
Two draw high resistance and second drags down resistance, described second draw high resistance be connected on the described second positive auxiliary signal terminal it
Between, described second, which drags down resistance, is connected between power supply and the second negative auxiliary signal terminal；
Described first draws high-resistance resistance value to draw high-resistance resistance value much larger than described second, and described first draws low-resistance resistance
Value draws low-resistance resistance value not equal to described second；
First control module is used to detect the voltage of the first positive auxiliary signal terminal and the first negative auxiliary signal terminal
Variation, and judge whether the docking station accesses the host according to the voltage change.
2. equipment according to claim 1, which is characterized in that
First control module, for drawing low-resistance resistance much larger than described second when the low-resistance resistance value of first drawing
Value, and detect the voltage of the described first positive auxiliary signal terminal by when low get higher or the first negative auxiliary signal terminal
When voltage is lower by height, judge that the docking station accesses the host.
3. equipment according to claim 1, which is characterized in that
First control module, for drawing low-resistance resistance much larger than described first when the low-resistance resistance value of second drawing
When being worth, and detecting the voltage of the described first positive auxiliary signal terminal by low get higher, judge that the docking station accesses the host.
4. equipment according to claim 1, which is characterized in that the docking station includes the second control module, for detecting
The voltage change of the second positive auxiliary signal terminal and the second negative auxiliary signal terminal, and according to the described second positive auxiliary
The voltage change of signal terminal and the second negative auxiliary signal terminal judges whether the docking station accesses the host.
5. equipment according to claim 1, which is characterized in that first differential amplifier circuit includes being sequentially connected in series in institute
Described first stated between power supply and the ground draws high resistance, the first capacitance, first resistor, second resistance, the second capacitance and institute
It states first and drags down resistance, first differential amplifier circuit further includes the first amplifier and the second amplifier, first amplification
The input terminal of device is connect with the display module, and two output ends of first amplifier are connected on first capacitance and institute respectively
It states between first resistor and between second capacitance and the second resistance, two input terminals of second amplifier and institute
Two output ends for stating the first amplifier are in parallel, and the output end of second amplifier is connect with the display module, and described first
Indirect reference voltage in resistance and the second resistance, the first positive auxiliary signal terminal be connected on described first draw high resistance and
Between first capacitance, the first negative auxiliary signal terminal be connected on described first drag down resistance and second capacitance it
Between.
6. equipment according to claim 1, which is characterized in that second differential amplifier circuit includes being sequentially connected in series in institute
Described second resistance, third capacitance, 3rd resistor, the 4th resistance, the 4th capacitance and institute are drawn high between the power supply with stating
It states second and drags down resistance, second differential amplifier circuit further includes third amplifier and the 4th amplifier, the third amplification
The input terminal of device is connect with the display interface, and two output ends of the third amplifier are connected on the third capacitance and institute respectively
It states between 3rd resistor and between the 4th capacitance and the 4th resistance, two input terminals of the 4th amplifier and institute
Two output ends for stating third amplifier are in parallel, and the output end of the 4th amplifier is connect with the display interface, the third
Indirect reference voltage in resistance and the 4th resistance, the second positive auxiliary signal terminal be connected on described second draw high resistance and
Between the third capacitance, the second negative auxiliary signal terminal be connected on described second drag down resistance and the 4th capacitance it
Between.
7. according to claim 1~6 any one of them equipment, which is characterized in that the docking station further includes metal oxide layer
Semiconductcor field effect transistor, 5V power supplys and universal serial bus pressure-wire, the metal oxide layer semiconductcor field effect transisto
Source electrode and drain electrode is connect with the 5V power supplys and the universal serial bus pressure-wire respectively, and the metal oxide layer is partly led
The grid of body field-effect transistor is connect with the described second positive auxiliary signal terminal.
8. a kind of host, which is characterized in that the host includes the first connector, display module and the first control module, described
First connector includes the first positive auxiliary signal terminal and the first negative auxiliary signal terminal and the first differential amplifier circuit, described
First positive auxiliary signal terminal and the first negative auxiliary signal terminal pass through first differential amplifier circuit and the display
Module connects, and drawing high resistance and first equipped with first in first differential amplifier circuit drags down resistance, and described first draws high electricity
Resistance is connected between power supply and the first positive auxiliary signal terminal, described first drag down resistance be connected on it is described first negative
Between auxiliary signal terminal series-shunt；
Described first draws high-resistance resistance value to draw high-resistance resistance value much larger than second in docking station, and described first drags down electricity
The resistance value of resistance is not equal to the second low-resistance resistance value of drawing in the docking station；
First control module is used to detect the voltage of the first positive auxiliary signal terminal and the first negative auxiliary signal terminal
Variation, and judge whether the docking station accesses the host according to the voltage change.
9. host according to claim 8, which is characterized in that
First control module, for drawing low-resistance resistance much larger than described second when the low-resistance resistance value of first drawing
Value, and detect the voltage of the described first positive auxiliary signal terminal by when low get higher or the first negative auxiliary signal terminal
When voltage is lower by height, judge that the docking station accesses the host.
10. host according to claim 8, which is characterized in that
First control module, for drawing low-resistance resistance much larger than described first when the low-resistance resistance value of second drawing
When being worth, and detecting the voltage of the described first positive auxiliary signal terminal by low get higher, judge that the docking station accesses the host.
11. according to claim 8~10 any one of them host, which is characterized in that first differential amplifier circuit includes
Be sequentially connected in series described first between the power supply and the ground draw high resistance, the first capacitance, first resistor, second resistance,
Second capacitance and described first drags down resistance, and first differential amplifier circuit further includes the first amplifier and the second amplifier,
The input terminal of first amplifier is connect with the display module, and two output ends of first amplifier are connected on described respectively
Between first capacitance and the first resistor and between second capacitance and the second resistance, second amplifier
Two input terminals are in parallel with two output ends of the first amplifier, and output end and the display module of second amplifier connect
It connects, indirect reference voltage in the first resistor and the second resistance, the first positive auxiliary signal terminal is connected on described
One draws high between resistance and first capacitance, and the first negative auxiliary signal terminal is connected on described first and drags down resistance and described
Between second capacitance.
12. a kind of docking station, which is characterized in that the docking station includes the second connector and display interface, second connection
Device includes the second positive auxiliary signal terminal, the second negative auxiliary signal terminal and the second differential amplifier circuit, the described second positive auxiliary
Signal terminal and the second negative auxiliary signal terminal are connect by second differential amplifier circuit with the display interface, institute
State and draw high resistance and second equipped with second in the second differential amplifier circuit and drag down resistance, described second draw high resistance be connected on
Between the second positive auxiliary signal terminal, described second, which drags down resistance, is connected on power supply and the described second negative auxiliary signal terminal
Between；
First in host draws high-resistance resistance value to draw high-resistance resistance value, and first in the host much larger than described second
Low-resistance resistance value is drawn to draw low-resistance resistance value not equal to described second.
13. docking station according to claim 12, which is characterized in that the docking station includes the second control module, is used for
The voltage change of the described second positive auxiliary signal terminal and the second negative auxiliary signal terminal is detected, and is become according to the voltage
Change judges whether the docking station accesses the host.
14. docking station according to claim 12, which is characterized in that second differential amplifier circuit includes being sequentially connected in series
Described second described between the power supply draws high resistance, third capacitance, 3rd resistor, the 4th resistance, the 4th capacitance
Resistance is dragged down with described second, second differential amplifier circuit further includes third amplifier and the 4th amplifier, the third
The input terminal of amplifier is connect with the display interface, and two output ends of the third amplifier are connected on the third capacitance respectively
Between the 3rd resistor and between the 4th capacitance and the 4th resistance, two input terminals of the 4th amplifier
In parallel with two output ends of third amplifier, the output end of the 4th amplifier is connect with the display interface, described
Indirect reference voltage in 3rd resistor and the 4th resistance, the second positive auxiliary signal terminal are connected on described second and draw high electricity
Between resistance and the third capacitance, the second negative auxiliary signal terminal is connected on described second and drags down resistance and the 4th capacitance
Between.
15. according to claim 12~14 any one of them docking station, which is characterized in that the docking station further includes metal-
Oxide Semiconductor Field Effect Transistors, 5V power supplys and universal serial bus pressure-wire, the metal oxide layer semiconductcor field effect are brilliant
The source electrode and drain electrode of body pipe is connect with the 5V power supplys and the universal serial bus pressure-wire respectively, the metal-oxide
The grid of layer semiconductcor field effect transistor is connect with the described second positive auxiliary signal terminal.
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| CN201410123470.7A CN104950993B (en) | 2014-03-28 | 2014-03-28 | A kind of portable mobile apparatus, host and docking station |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916815A (en) * | 2005-07-25 | 2007-02-21 | 三星电子株式会社 | Portable computer and method of controlling the same |
| CN101159991A (en) * | 2006-10-03 | 2008-04-09 | 索尼株式会社 | Audio equipment |
| CN201562205U (en) * | 2009-12-25 | 2010-08-25 | 联想(北京)有限公司 | Host computer, docking station and movable portable equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007001994A1 (en) * | 2007-01-08 | 2008-07-10 | Myguide Ltd. | Docking station for minicomputers |
| US20110099507A1 (en) * | 2009-10-28 | 2011-04-28 | Google Inc. | Displaying a collection of interactive elements that trigger actions directed to an item |
| US20110167187A1 (en) * | 2010-01-06 | 2011-07-07 | Apple Inc. | Connectors in a portable device |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916815A (en) * | 2005-07-25 | 2007-02-21 | 三星电子株式会社 | Portable computer and method of controlling the same |
| CN101159991A (en) * | 2006-10-03 | 2008-04-09 | 索尼株式会社 | Audio equipment |
| CN201562205U (en) * | 2009-12-25 | 2010-08-25 | 联想(北京)有限公司 | Host computer, docking station and movable portable equipment |
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