CN103022841A - External module, electronic device, and method for driving external module - Google Patents

External module, electronic device, and method for driving external module Download PDF

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Publication number
CN103022841A
CN103022841A CN2011102804969A CN201110280496A CN103022841A CN 103022841 A CN103022841 A CN 103022841A CN 2011102804969 A CN2011102804969 A CN 2011102804969A CN 201110280496 A CN201110280496 A CN 201110280496A CN 103022841 A CN103022841 A CN 103022841A
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CN
China
Prior art keywords
connector
rotating shaft
cantilever
external connection
connection module
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Granted
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CN2011102804969A
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Chinese (zh)
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CN103022841B (en
Inventor
聂剑扬
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Acer Inc
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Acer Inc
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Priority to CN201110280496.9A priority Critical patent/CN103022841B/en
Publication of CN103022841A publication Critical patent/CN103022841A/en
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Publication of CN103022841B publication Critical patent/CN103022841B/en
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Abstract

The invention relates to an external module, an electronic device and a method for driving the external module, wherein the electronic device comprises a host computer and a plurality of external modules; each external module is suitable for being detachably connected to the electronic device, and comprises a main body, a first connector, a movement subassembly and a second connector; the main body comprises a plurality of docking ports; the first connector is fixedly arranged at one docking port; the electronic device is suitable for being electrically connected to the first connector to provide power to the external module, so as to drive the movement subassembly; the movement subassembly is arranged inside the main body; the second connector is assembled to the movement subassembly and electrically connected to the first connector; the movement subassembly drives the second connector to convert between the docking ports, and the docking port, at which the second connector is positioned, is different from the docking port at which the first connector is positioned.

Description

External connection module, electronic installation and the method that drives external connection module
Technical field
The present invention relates to a kind of external connection module, and be particularly related to a kind of external connection module with floating connector.
Background technology
Along with the progress of science and technology, the modern uses computer to become more and more general, and the function of computer is also more and more diversified.In order to allow the user can promote quickly and easily computer usefulness or to increase its function, all have bus school extension (bus expansion portion) on the main frame of computer, for example AGP bus expansion slot (AGP bus slot), pci bus expansion slot, USB expand pin group (USB expansion pin set) or Thunderbolt bus expansion slot.
Generally speaking, originally be provided with a plurality of Bussing connectors on the main frame, to be connected to interface equipment, for example mouse, printer, scanner or external connected hand disk.Yet be not that all Bussing connectors all meet user's demand instantly; therefore normal meet is just before the variation along with the interface equipment of supporting computer; the quantity of the Bussing connector that originally arranges is applied and is used, also or the former Bussing connector that is arranged on the main frame is not used and causes waste.Therefore, how taking full advantage of Bussing connector, or allow Bussing connector change along with demand, will be the direction that is worth effort.
Summary of the invention
The invention provides a kind of external connection module, can freely connect each other and be electrically connected to an electronic installation.
The present invention proposes a kind of external connection module, is suitable for removably being connected to an electronic installation.External connection module comprises a body, one first connector, a motion assembly and one second connector.Body has a plurality of Ports, and the first connector is installed in one of them Port place.Electronic installation is suitable for being electrically connected to the first connector to provide electrical power to external connection module.The motion assembly is configured in the body, the second connector is assembled to the motion assembly and is electrically connected the first connector, wherein motion Component driver the second connector is changed between Port, and the Port at the second connector place is different from the Port at the first connector place.
The present invention proposes a kind of electronic installation, comprises a main frame and a plurality of external connection module.External connection module and main frame are serially connected mutually, and each external connection module comprises a body, one first connector, a motion assembly and one second connector.The first connector is arranged in the body and is electrically connected to main frame or another external connection module, the motion assembly is arranged in the body, the second connector is arranged on the motion assembly and is electrically connected the first connector, main frame transmits electric power to external connection module, makes the second connector move to the first connector that is connected to another external connection module behind the position with the actuation movement assembly.
The present invention proposes a kind of driving method of external connection module, and external connection module is suitable for being external to an electronic installation.External connection module comprises a body, a motion assembly, one first connector and one second connector, body has a plurality of Ports, the first connector is arranged on one of them Port place, motion Component driver the second connector is changed between Port, and the Port at the second connector place is different from the Port at the first connector place.The driving method of external connection module comprises that after the first connector was connected to electronic installation, electronic installation provided electrical power to the motion assembly, from one of them position of electronic installation input connectivity port, rotates the second connector to Port with the actuation movement assembly.
In one embodiment of this invention, above-mentioned motion assembly comprises a rotating shaft, a cantilever and a driver element.Rotating shaft is arranged in the body, and cantilever one end is connected to the center of rotating shaft, and the second connector is configured in the other end of cantilever, and the driver element connection rotating shaft rotates to drive rotating shaft and cantilever.
In one embodiment of this invention, above-mentioned rotating shaft is a gear, and driver element comprises an electromagnet group and a tooth bar.Electromagnet group by a movable magnetic part with consisted of around a plurality of coil on it, tooth bar connects movable magnetic part and is engaged in rotating shaft, coil obtains electric power and drives movable magnetic part and promote back and forth tooth bar, so that rotating shaft and cantilever rotation.
In one embodiment of this invention, above-mentioned body has two different accommodation spaces, and the first connector is arranged in one of them accommodation space, and cantilever and the second connector rotate in another accommodation space.
In one embodiment of this invention, above-mentioned external connection module also comprises a circuit board, and itself and the first connector are positioned at one accommodation space, and circuit board is electrically connected the first connector, the second connector and driver element.
In one embodiment of this invention, the foregoing circuit plate has semi-circular profile, and its edge is the intersection of accommodation space, and rotating shaft is positioned at the circle centre position of circuit board.
In one embodiment of this invention, above-mentioned motion assembly also comprises a stop part, is configured on the cantilever, and when cantilever turned to the edge of circuit board, stop part disconnection cantilever was connected with circuit board.
In one embodiment of this invention, the foregoing circuit plate is positioned on the rotational plane at stop part place.
In one embodiment of this invention, above-mentioned body also has a plurality of pliability keepers, lays respectively at by the Port and on the rotation path of the second connector, the second connector is positioned respectively each Port place.
In one embodiment of this invention, above-mentioned motion assembly has an interconnective driver element and a linked component, driver element comprises an electromagnet group, the second connector is configured on the linked component, the driving method of external connection module comprises that also electronic installation is according to the position of the connectivity port of inputting, and transmit corresponding electric current to electromagnet group, rotate an angle and the second connector is moved to Port to drive linked component.
In sum, the present invention uses a motion assembly to be arranged at one to have in the body of external connection module of a plurality of connectivity ports, make it drive rotating second connector and between a plurality of Ports, do conversion, external connection module has more first connector that sets firmly thereon, can be connected to provide with electronic installation the driven by power external connection module.So, because the position of the second connector of external connection module can freely be changed, the degree of convenience on external connection module uses and the degree of freedom of using have been increased; In addition, the present invention can utilize the first connector and the second connector to contact simultaneously the external connection module of a plurality of difference in functionalitys on an electronic installation, and the connectivity port quantity that has also solved electronic installation is not applied the problem of using.
Description of drawings
Fig. 1 is the electronic installation schematic diagram of one embodiment of the invention
Fig. 2 is the external connection module perspective view of Fig. 1.
Fig. 3 a is the driver element schematic diagram of Fig. 2.
Fig. 3 b is that the driver element of Fig. 2 is in the schematic diagram of another state.
Fig. 3 c is the schematic diagram of driver element in a kind of external connection module of another embodiment of the present invention.
Fig. 4 is that Fig. 2 is in the generalized section of A-A tangent line.
Fig. 5 is the driving method flow chart of the external connection module of one embodiment of the invention.
Wherein:
112a-second connects
100-external connection module 110-body 112-the first Port
The port
112b-second connects 114-the first accommodating empty 116-the second accommodating empty 118-pliability location
Part between between the port
120-the first connector 130-motion assembly 132-runner 134-cantilever
136,336-drives single 136a-electromagnet group 136b-tooth bar 138-stop part
Unit
The 154-center of circle, 140-the second connector 150-circuit board 152-edge
The movable magnetic part 164-of 162-coil 200-electronic installation 210-main frame
The 336a-elastic component P1-rotation path C1-road C2-electric current of electrically contacting
Directly
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate accompanying drawing to be described in detail below.
Fig. 1 is the electronic installation schematic diagram of one embodiment of the invention, please refer to Fig. 1, and the electronic installation 200 of present embodiment comprises a main frame 210 and a plurality of external connection module 100.Electronic installation 200 can be notebook computer, desktop computer, flat computer or arbitrary host computer system with operation independent and Presentation Function, the electronic module of each external connection module 100 for having a specific function, extension external member as electronic installation 200, such as: TV box, Blu-ray player, sound equipment etc., and allow electronic installation 200 expand its peripheral function by external connection module 100, but and 200 couples of users' of raising electronic installation value and convenience.
In this only explanation as an example of a notebook computer example, it is by mutually being serially connected with external connection module 100, and forms an electrical series winding path C1, and wherein each external connection module 100 can change and conversion voluntarily according to user's demand.
Fig. 2 is the external connection module perspective view of Fig. 1, more clearly to show the internal structure of external connection module 100.Please refer to Fig. 2, the external connection module 100 of present embodiment comprises a body 110, one first connector 120, a motion assembly 130, one second connector 140 and circuit board 150.The first connector 120 and the second connector 140 can be respectively plug or socket, and in the present embodiment, the first connector 120 is plug, and the second connector 140 is socket.Body 110 has one first accommodation space 114, one second accommodation space 116, one first Port 112 and a plurality of the second Port 112a, 112b, and wherein the first Port 112 and the first connector 120 are arranged in the first accommodation space 114 and the first connector 120 is installed on the first Port 112.At this, electronic installation 200 is suitable for being electrically connected to the first connector 120 to provide electrical power to external connection module 100.
Motion assembly 130 is configured in the body 110, the second connector 140 is assembled to motion assembly 130 and is electrically connected with the first connector 120, wherein motion assembly 130 rotates in the second accommodation space 116, changes between the second Port 112a, 112b and drive the second connector 140.Circuit board 150 is arranged in the first accommodation space 114, and is electrically connected between the first connector 120 and the second connector 140.In the present embodiment, the shape of circuit board 150 is a semicircle, and its edge 152 is positioned at the intersection of the first accommodation space 114 and the second accommodation space 116, with 130 collocation of motion assembly and make its inside at body 110 that better space availability ratio be arranged.At this, the label of second Port adjacent with edge 152 indicates with 112a among Fig. 2, and the label of the second not adjacent with edge 152 Port then indicates with 112b.Do not limit in the present invention the quantity of the second Port of body, it can suitably change according to the external form profile of body.
Fig. 3 a is the driver element schematic diagram of Fig. 2, and Fig. 3 b is that the driver element of Fig. 2 is in the schematic diagram of another state.Please also refer to Fig. 3 a and Fig. 3 b, specifically, motion assembly 130 comprises a rotating shaft 132, a cantilever 134 and a driver element 136.Rotating shaft 132 has rim gear wheel exterior feature (being that rotating shaft 132 is essentially a gear), it is positioned on the center of circle 154 of circuit board 150, one end of cantilever 134 is connected to the center of rotating shaft 132, and the second connector 140 is configured in the other end (figure does not show) of cantilever 134.Driver element 136 comprises an electromagnet group 136a and a tooth bar 136b, electromagnet group 136a by a movable magnetic part 162 with consisted of around a plurality of coils 164 on it, wherein movable magnetic part 162 is connected to tooth bar 136b, and tooth bar 136b is engaged in rotating shaft 132.
From the above mentioned, driver element 136 is electrically connected with circuit board 150, and the electric power of main frame 210 is sent to coil 164.So, the electric current C2 on the coil 164 just drives the magnetic force F1 that movable magnetic part 162 moves because galvanomagnetic effect produces, and then promotion tooth bar 136b rotates along a rotation path P1 to drive rotating shaft 132.Thus, the user just can utilize on the coil 164 electric current C2 direction and electric current C2 size to control rotation direction and the rotational angle of the second connector 140, and the second connector 140 is changed between different the second Port 112a, 112b.
Fig. 3 c is the schematic diagram of driver element in a kind of external connection module of another embodiment of the present invention.Please refer to Fig. 3 c, different from above-described embodiment is, driver element 336 comprises an elastic component 336a (for example being the coil tension spring with conductivity) and tooth bar 136b, and 136b is similar to the above embodiments for its middle rack, it is engaged in rotating shaft 132, does not repeat them here.But different is, the end of elastic component 336a is to be connected to tooth bar 136b, and elastic component 336a is suitable for received current and flexible along an axial A1.Accordingly, by providing current to elastic component 336a, just can make it be with carry-over bar 136b to move around because of flexible, and then reach same as the previously described embodiments and allow tooth bar 136b drive shaft 132 and generation comes the effect of back rotation.
Fig. 4 is that Fig. 2 is along the profile of A-A line.Please also refer to Fig. 2 and Fig. 4, specifically, motion assembly 130 also comprises a stop part 138, and it is configured on the cantilever 134.When cantilever 134 turned to the edge 152 of circuit board 150, stop part 138 produced constructive interference and stops that cantilever 134 continues toward circuit board 150 directions to rotate with circuit board 150, thereby allows the second connector 140 be positioned the second Port 112a shown in Fig. 2.In addition, body 110 also has a plurality of pliability keepers 118, for example be made with rubber, and pliability keeper 118 lays respectively at the second not adjacent with edge Port 112b both sides and is positioned on the rotation path P1 of the second connector 140, is used for the second connector 140 is positioned the second Port 112b.
Fig. 5 is the driving method flow chart of the external connection module of one embodiment of the invention.Please refer to Fig. 5, when user's wish drives external connection module 100, at first first external connection module 100 is electrically connected to main frame 210 in step S510, this moment, main frame 210 can provide electrical power to circuit board 150.Then, in step S520, the user needs from the position of main frame 210 one of them second Port 112a of input or 112b.In step S530, main frame 210 is according to angle and the direction of the position judgment motion assembly 130 required rotations of inputting, and the electric current that correspondence is provided moves to the second Port 112a or 112b to motion assembly 130 to drive the second connector 140.In addition, the user can also be electrically connected another external connection module 100 to the second connector 140 that is positioned at this second Port 112a or 112b in step S540, can drive the each other external connection module 100 of serial connection, uses for connected electronic installation 200.
In another not shown embodiment of the present invention, the position of the second connector also can be controlled by manual mode.For example a manual button can be set on cantilever, and have at least the manual button of part to be exposed to outside the bottom surface of body, and the bottom surface is provided with a rotation track, around the wheel shaft setting, for manual button along rotation track along with cantilever rotates.When user's wish is changed the position of the second connector, only need press manual button and move to the position, the second connectivity port that wish connects along rotation track, make the second connector and the second Port form electric connection and get final product.
In sum, the present invention utilizes a motion assembly to be arranged at one to have in the external connection module of a plurality of connectivity ports, making it drive rotating second connector changes between a plurality of Ports, external connection module has more first a fixing connector, can be connected to provide with electronic installation the electric power of external connection module.External connection module utilizes the electromagnet group of the driven by power motion assembly that electronic installation provides, and makes it drive wheel shaft and the cantilever that connects the second connector rotates, and is electrically connected the second connector turned to the Port that wish connects and to form.Because the position of the second connector of external connection module can freely be changed, but the external connection module of a plurality of difference in functionalitys just free arrangement combination and connecting be connected to again on the electronic installation, to be used as its Extension Suite.The degree of convenience on external connection module uses and the changeability that makes up have not only been increased, because the present invention only need utilize a connector to be connected with electronic installation, can contact a plurality of external connection modules simultaneously on electronic installation, fully solved the connectivity port quantity problem that supply falls short of demand of electronic installation.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention, has in any affiliated technical field and usually knows the knowledgeable, without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying claims.

Claims (18)

1. an external connection module is suitable for removably being connected to an electronic installation, and this external connection module comprises
One body has a plurality of Ports;
One first connector is installed in one of them Port place;
One motion assembly is configured in this body; And
One second connector, configuration is to this motion assembly and be electrically connected this first connector, wherein, this electronic installation is suitable for being electrically connected to this first connector to provide electrical power to this external connection module, and drive this motion assembly this second connector is changed between those Ports, and this Port at this second connector place is different from this Port at this first connector place.
2. external connection module as claimed in claim 1 is characterized in that, this motion assembly comprises
One rotating shaft is arranged in this body;
One cantilever, the one end is connected to the center of this rotating shaft, and this second connector is configured in the other end of this cantilever; And
One driver element connects this rotating shaft and rotates to drive this rotating shaft and this cantilever.
3. external connection module as claimed in claim 2 is characterized in that, this rotating shaft is a gear, and this driver element comprises
One electromagnet group, by a movable magnetic part with consisted of around a plurality of coil on it; And
One tooth bar connects this movable magnetic part and is engaged in this rotating shaft, and those coils obtain electric power and drive this movable magnetic part and promote back and forth this tooth bar, so that this rotating shaft and the rotation of this cantilever.
4. external connection module as claimed in claim 2 is characterized in that, this rotating shaft is a gear, and this driver element comprises
One elastic component; And
One tooth bar is engaged in this rotating shaft and is connected to an end of this elastic component, and this elastic component is suitable for obtaining electric power and stretches, since rewind carry-over bar, and allow this rotating shaft of this rack drives and this cantilever rotate.
5. external connection module as claimed in claim 2, it is characterized in that, this body has two different accommodation spaces, and this external connection module also comprises a circuit board, be electrically connected this first connector, this second connector and this driver element, this circuit board and this first connector are located in one of them accommodation space, and this cantilever and this second connector rotate in another accommodation space.
6. external connection module as claimed in claim 5 is characterized in that, this motion assembly also comprises a stop part, is configured on this cantilever, and when this cantilever turned to the edge of this circuit board, this stop part disconnection cantilever was connected with this circuit board.
7. external connection module as claimed in claim 1 is characterized in that, this body also has a plurality of pliability keepers, and the position is other and be positioned on the rotation path of this second connector at those Ports respectively, this second connector is positioned respectively respectively this Port place.
8. an electronic installation comprises
One main frame;
A plurality of external connection modules are serially connected mutually with this main frame, and respectively this external connection module comprises
One body;
One first connector is arranged in this body and is electrically connected to this main frame or another external connection module;
One motion assembly is arranged in this body; And
One second connector, be arranged on this motion assembly and be electrically connected this first connector, this main frame transmits electric power to those external connection modules, makes this second connector move to this first connector that is connected to another external connection module behind the position to drive this motion assembly.
9. electronic installation as claimed in claim 8 is characterized in that, this body has a plurality of Ports, and this first connector is installed in one of them Port place, and this second connector is changed between all the other Ports.
10. electronic installation as claimed in claim 8 is characterized in that, this motion assembly comprises
One rotating shaft is arranged in this body;
One cantilever, the one end is connected to the center of this rotating shaft, and this second connector is configured in the other end of this cantilever; And
One driver element connects this rotating shaft and rotates to drive this rotating shaft and this cantilever.
11. electronic installation as claimed in claim 10 is characterized in that, this rotating shaft is a gear, and this driver element comprises
One electromagnet group, by a movable magnetic part with consisted of around a plurality of coil on it; And
One tooth bar connects this movable magnetic part and is engaged in this rotating shaft, and those coils obtain electric power and drive this movable magnetic part and promote back and forth this tooth bar, so that this rotating shaft and the rotation of this cantilever.
12. electronic installation as claimed in claim 10 is characterized in that, this rotating shaft is a gear, and this driver element comprises
One elastic component; And
One tooth bar is engaged in this rotating shaft and is connected to an end of this elastic component, and this elastic component is suitable for obtaining electric power and stretches, since rewind carry-over bar, and allow this rotating shaft of this rack drives and this cantilever rotate.
13. electronic installation as claimed in claim 10, it is characterized in that, this body has two different accommodation spaces, and this external connection module also comprises a circuit board, be electrically connected this first connector, this second connector and this driver element, this circuit board and this first connector are located in one of them accommodation space, and this cantilever and this second connector rotate in another accommodation space.
14. electronic installation as claimed in claim 13 is characterized in that, this motion assembly also comprises a stop part, is configured on this cantilever, and when this cantilever turned to the edge of this circuit board, this stop part disconnection cantilever was connected with this circuit board.
15. external connection module as claimed in claim 9, it is characterized in that, this body also has a plurality of pliability keepers, and it is other and be positioned on the rotation path of this second connector to lay respectively at those Ports, this second connector is positioned respectively respectively this Port place.
16. the driving method of an external connection module, this external connection module is suitable for being external to an electronic installation, this external connection module comprises a body, a motion assembly, one first connector and one second connector, this body has a plurality of Ports, this first connector is arranged on one of them Port place, this second connector of this motion Component driver is changed between those Ports, and this Port at this second connector place is different from this connectivity port at this first connector place, and the driving method of this external connection module comprises
After this first connector was connected to this electronic installation, this electronic installation provided electrical power to this motion assembly; And
Input one of them positions of those connectivity ports from this electronic installation, rotate this second connector to this Port to drive this motion assembly.
17. the driving method of external connection module as claimed in claim 16 is characterized in that, this motion assembly comprises
One rotating shaft is arranged in this body and has the rim gear wheel exterior feature;
One cantilever, the one end is connected to the center of this rotating shaft, and this second connector is configured in the other end of this cantilever; And
One driver element connects this rotating shaft and rotates to drive this rotating shaft and this cantilever, comprises
One electromagnet group, by a movable magnetic part with consisted of around a plurality of coil on it; And
One tooth bar connects this movable magnetic part and is engaged in this rotating shaft, and those coils obtain electric power and drive this movable magnetic part and promote back and forth this tooth bar, so that this rotating shaft and the rotation of this cantilever,
The driving method of this external connection module also comprises
This electronic installation is according to the position of this connectivity port of inputting, and the electric current that transmits correspondence rotates an angle and the second connector is moved to this Port to drive this cantilever to this electromagnet group.
18. the driving method of external connection module as claimed in claim 16 is characterized in that, this motion assembly comprises
One rotating shaft is arranged in this body and has the rim gear wheel exterior feature;
One cantilever, the one end is connected to the center of this rotating shaft, and this second connector is configured in the other end of this cantilever; And
One driver element connects this rotating shaft and rotates to drive this rotating shaft and this cantilever, comprises
One elastic component; And
One tooth bar is engaged in this rotating shaft and is connected to an end of this elastic component, and this elastic component is suitable for obtaining electric power and shrinks, since rewind carry-over bar, and allow this rotating shaft of this rack drives and this cantilever rotate,
The driving method of this external connection module also comprises
The position of this connectivity port that this electronic installation foundation is inputted, and transmit corresponding electric current to this elastic component, this elastic component is accepted electric current and flexible this tooth bar that drives, and rotates an angle and the second connector is moved to this Port to drive this cantilever.
CN201110280496.9A 2011-09-20 2011-09-20 External module, electronic device, and method for driving external module Active CN103022841B (en)

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Application Number Priority Date Filing Date Title
CN201110280496.9A CN103022841B (en) 2011-09-20 2011-09-20 External module, electronic device, and method for driving external module

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Application Number Priority Date Filing Date Title
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CN103022841B CN103022841B (en) 2015-01-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111556182A (en) * 2020-04-27 2020-08-18 怀化学院 Electronic communication device for information engineering

Citations (3)

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Publication number Priority date Publication date Assignee Title
US5619397A (en) * 1994-09-29 1997-04-08 Kabushiki Kaisha Toshiba Electronic device system including a portable electronic device having a handwriting input device locked to an expansion station when the power switch of the portable electronic device is turned on
JPH11110081A (en) * 1997-09-19 1999-04-23 Internatl Business Mach Corp <Ibm> External and internal peripheral device for computer
CN201708418U (en) * 2010-05-18 2011-01-12 长盛科技股份有限公司 Electronic device and electronic connecting mechanism thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619397A (en) * 1994-09-29 1997-04-08 Kabushiki Kaisha Toshiba Electronic device system including a portable electronic device having a handwriting input device locked to an expansion station when the power switch of the portable electronic device is turned on
JPH11110081A (en) * 1997-09-19 1999-04-23 Internatl Business Mach Corp <Ibm> External and internal peripheral device for computer
CN201708418U (en) * 2010-05-18 2011-01-12 长盛科技股份有限公司 Electronic device and electronic connecting mechanism thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111556182A (en) * 2020-04-27 2020-08-18 怀化学院 Electronic communication device for information engineering
CN111556182B (en) * 2020-04-27 2021-07-06 怀化学院 Electronic communication device for information engineering

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