CN203026000U - Braille point display - Google Patents
Braille point display Download PDFInfo
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- CN203026000U CN203026000U CN 201320026826 CN201320026826U CN203026000U CN 203026000 U CN203026000 U CN 203026000U CN 201320026826 CN201320026826 CN 201320026826 CN 201320026826 U CN201320026826 U CN 201320026826U CN 203026000 U CN203026000 U CN 203026000U
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Abstract
The utility model relates to the technical field of blind person education equipment, and in particular relates to a Braille point display. The Braille point display comprises a main controller, a Braille touch point action controller, a plurality of touch point action displacers and respective corresponding Braille touch points, wherein the main controller is used for converting read computer Braille codon information into Braille touch point control signals; the Braille touch point action controller is used for generating touch point action voltage and used for supplying the touch point action voltage to the touch point action displacer according to the received Braille touch point control signal; the touch point action displacer is used for generating displacement deformation under the action of the touch point action voltage; each Braille touch point generates Braille touch point elevation under the driving of the displacement deformation; the main controller is connected with the Braille touch point action controller; the Braille touch point action controller is respectively connected with the plurality of touch point action displacers; and each touch point action displacer is connected with corresponding Braille touch points. By utilizing the Braille point display, the blind can touch and read the Braille content converted by a computer.
Description
Technical field
The utility model relates to blind person's educational facilities technical field, is specifically related to the aobvious device of a kind of braille point.
Background technology
The blind person can't watch things with eyes as the normal person, mainly relies on the sense of hearing of ear and the sense of touch of finger to obtain extraneous information.Carry out attending classes and information interchange for the ease of the blind person; often the documents and materials of some Chinese, English, French or other national language can be converted into books printed in braille reads for the blind person; wherein braille also referred to as braille or type, is the word that aims at blind person's design, mainly relies on tactilely-perceptible.Usually each Braille comprises 6 some positions, and these 6 some positions are divided into two groups that are arranged side by side.And books printed in braille are to form by a letter stencil, some word machine or braille printer are produced various combination on paper Braille.
Along with popularizing of informationalized development and personal computer, now had the Chinese character braille switching software that to install on computers, this software can be converted to the Chinese character in computing machine the braille code word, but personal computer is general main is by display image screen or word, although personal computer can be converted into braille with Chinese character, the blind person can't read the braille that shows on computing machine.
The utility model content
The braille point that the utility model provides shows device, can touch for the blind person and read the braille content that is converted to by computing machine.
In order to solve this technical problem, the utility model is achieved in that braille point shows device, comprising: master controller, braille contact action device, the braille contact of a plurality of contacts action displacement device and difference correspondence thereof;
Described master controller is used for the computer braille codeword information that reads is converted into braille contact control signal, and described braille contact control signal is transferred to described braille contact action device;
Action device in described braille contact is used for generating the contact operation voltage, and according to the described braille contact control signal that receives, described contact operation voltage is added to described contact action displacement device;
Described contact action displacement device produces Displacement-deformation under the effect of described contact operation voltage;
Each described braille contact produces braille contact lifting under the drive of the Displacement-deformation that its corresponding contact action displacement device produces;
Wherein said master controller is connected with described braille contact action device, and described braille contact action device is connected respectively with a plurality of described contacts action displacement device, the braille contact connection that each contact action displacement device is corresponding with it.
Preferably, described braille contact action device comprises: sub-device is controlled in boost sub-device and a plurality of contact;
The described sub-device that boosts is used for generating the contact operation voltage, and the described sub-device that boosts is connected respectively with the sub-device of a plurality of described contacts control;
Each described contact is controlled sub-device and is comprised a plurality of on-off circuits, is connected respectively a contact action displacement device by each on-off circuit;
Sub-device is controlled according to the described braille contact control signal that receives in each described contact, by each on-off circuit, described contact operation voltage is added to the contact action displacement device of connection corresponding to it.
Preferably, each described contact is controlled sub-device and is included 8 on-off circuits;
6 described on-off circuits wherein, the braille code word control signal that the described braille contact control signal that is used for controlling according to described contact that sub-device receives comprises adds to described contact operation voltage the contact action displacement device of connection corresponding to it;
Other 2 described on-off circuits, the cursor control signal that the described braille contact control signal that is used for controlling according to described contact that sub-device receives comprises adds to described contact operation voltage the contact action displacement device of connection corresponding to it.
Preferably, described braille contact action device comprises 40 sub-devices of described contacts control.
Preferably, further comprise: the interface arrangement that is used for reading the computer braille codeword information;
Described interface arrangement also is used for obtaining supply voltage;
Described interface arrangement is connected with described master controller.
Preferably, further comprise: be used for that described supply voltage is converted into master controller voltage and described supply voltage be converted into the supply unit of the sub-device voltage that boosts;
Described supply unit is connected with described interface arrangement, described master controller and the described sub-device that boosts respectively.
Preferably, described contact action displacement device is piezoelectric ceramic piece.
Preferably, described master controller adopts the CY7C68013 chip.
Preferably, the described sub-device that boosts adopts the MAX15005 chip;
And/or
Described contact is controlled sub-device and is adopted the PCF8574 chip.
Preferably, described interface arrangement is USB interface.
The aobvious device of braille point by the utility model provides can reach following beneficial effect:
The master controller that the aobvious device of braille point of the present utility model comprises is converted into braille contact control signal with the computer braille codeword information that reads, and further device moves in master controller braille contact that the braille contact control signal that obtains is transferred to that the aobvious device of braille point comprises.At action device place, braille contact, can generate the contact operation voltage, and according to the braille contact control signal that receives, the contact operation voltage be added to braille point and show the contact action displacement device that device comprises.Contact action displacement device produces Displacement-deformation under the effect of contact voltage, because contact action displacement device and the corresponding connection in braille contact, further drive the contact lifting of corresponding braille when contact action displacement device produces Displacement-deformation, the various combination of a plurality of brailles contact lifting forms the braille code word.Forms because the braille code word that the aobvious device of braille point shows is the lifting by the braille contact, show thereby the blind person can read braille point by the lifting of tactilely-perceptible braille contact the braille code word that forms on device.Namely the lifting by the braille contact shows and touches reading by the blind person the aobvious device of this braille point by braille that the computing machine internal conversion is obtained.Therefore the aobvious device of braille point that provides of the utility model, can touch the braille content that reading is converted to by computing machine for the blind person.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in below describing is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of the aobvious device of the utility model embodiment 1 braille point;
Fig. 2 is the structural representation of the aobvious device of the utility model embodiment 2 braille points;
Fig. 3 is the utility model embodiment 2 braille display effect figure.
Embodiment
Below with reference to accompanying drawing, the technical scheme of each embodiment of the utility model is carried out clear, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
Embodiment 1
The present embodiment 1 provides a kind of braille point to show device, and as shown in Figure 1, the aobvious device of this braille point comprises master controller 11, braille contact action device 12, a plurality of contacts action displacement device 13 and corresponding braille contact 14 respectively thereof;
Master controller 11, the computer braille codeword information that is used for reading transform braille contact control signal, and described braille contact control signal is transferred to described braille contact action device 12;
Action device 12 in braille contact is used for generating the contact operation voltage, and according to the described braille contact control signal that receives, described contact operation voltage is added to described contact action displacement device 13;
Contact action displacement device 13 produces Displacement-deformation under the effect of described contact operation voltage;
Each braille contact 14 generation braille contact 14 lifting under the drive of the Displacement-deformation that its corresponding contact action displacement device 13 produces;
Wherein master controller 11 is connected with braille contact action device 12, and braille contact action device 12 is connected respectively with a plurality of contacts action displacement device 13, braille contact 14 connections that each contact action displacement device 13 is corresponding with it.
The master controller 11 that the aobvious device of braille point of the present utility model comprises is converted into braille contact control signal with the computer braille codeword information that reads, and further device 12 moves in master controller 11 braille contact that the braille contact control signal that obtains is transferred to that the aobvious device of braille point comprises.At action device 12 places, braille contact, can generate the contact operation voltage, and according to the braille contact control signal that receives, the contact operation voltage be added to braille point and show the contact action displacement device 13 that device comprises.Contact action displacement device 13 produces Displacement-deformation under the effect of contact voltage, because contact action displacement device 13 and braille contact 14 corresponding connections, further drive contact 14 liftings of corresponding braille when contact action displacement device 13 produces Displacement-deformation, the various combination of a plurality of brailles contact 14 liftings forms the braille code word.Forms because the braille code word that the aobvious device of braille point shows is the lifting by braille contact 14, show thereby the blind person can read braille point by the lifting of tactilely-perceptible braille contact 14 the braille code word that forms on device.Namely the lifting by braille contact 14 shows and touches reading by the blind person the aobvious device of this braille point by braille that the computing machine internal conversion is obtained.Therefore the aobvious device of braille point that provides of the utility model, can touch the braille content that reading is converted to by computing machine for the blind person.
Embodiment 2
The present embodiment 2 provides a kind of braille point to show device on the basis of embodiment 1, as shown in Figures 2 and 3, the aobvious device of this braille point comprises be used to the interface arrangement 21 that reads the computer braille codeword information, by this interface arrangement 21, the aobvious device of braille point is connected with personal computer, this interface arrangement 21 can also obtain supply voltage except the computer braille codeword information that can read in computing machine, the supply voltage that obtains by interface arrangement 21 can provide operation power for the aobvious device work of braille point.
This interface arrangement 21 is USB interface particularly, by USB (universal serial bus) (USB) interface, Braille display is connected with personal computer, makes the aobvious device of braille point easy to use.
After interface arrangement 21 obtains the computer braille codeword information, it is transferred to the master controller 22 that the aobvious device of braille point comprises.
Master controller 22 is converted into braille contact control signal with the computer braille codeword information that reads, and described braille contact control signal is transferred to the braille contact action device 23 that the aobvious device of braille point comprises.
Wherein the chip of master controller 22 employings can have multiple choices, and for example master controller 22 adopts the CY7C68013 chips, will not enumerate herein.
Master controller 22 adopts the CY7C68013 chip can reduce the cost of the aobvious device of braille point.
Braille contact action device 23 generates the contact operation voltage, and according to the braille contact control signal that receives, described contact operation voltage is added to braille point and show action displacement device 24 places, contact that device comprises.
Contact action displacement device 24 produces Displacement-deformation under the effect of contact operation voltage.
Wherein the aobvious device of braille point comprises a plurality of contacts action displacement device 24, be connected with braille contact 25 corresponding to each contact action displacement device 24.
Each braille contact 25 generation braille contact 25 lifting under the drive of the Displacement-deformation that its corresponding contact action displacement device 24 produces.
Wherein, interface arrangement 21 is connected with master controller 22, master controller 22 is connected with braille contact action device 23, and braille contact action device 23 is connected respectively with a plurality of contacts action displacement device 24, braille contact 25 connections that each contact action displacement device 24 is corresponding with it.
Particularly, action device 23 in braille contact comprises boost sub-device 232 and the sub-device 231 of a plurality of contact control.
The sub-device 232 that boosts can generate the contact operation voltage, and the sub-device 232 that wherein boosts adopts the MAX15005 chip.
Each contact is controlled sub-device 231 and is comprised a plurality of on-off circuits, is connected respectively a contact action displacement device by each on-off circuit;
Wherein the contact is controlled sub-device 231 and is adopted the PCF8574 chip.
Preferably, contact action displacement device 24 is piezoelectric ceramic piece, and the shape of voltage ceramic sheet is a strip, after an end making alive, and an other end perk, so piezoelectric ceramic piece produces Displacement-deformation under the effect of contact operation voltage.
Because contact action displacement device 24 is connected with braille contact 25, produce the contact liftings so can drive braille contact 25 when contact action displacement device 24 produces Displacement-deformation, form thus the braille code word.
The aobvious device of the braille point of the present embodiment comprises 40 groups of braille code words, and every group of braille code word comprises that braille contact, 25,8 of 8 braille contacts 25 forms the matrix of 4 row 2 row.
In 8 braille contacts 25 of every group of braille code word, the various combination that fall by rise 6 braille contacts 25 wherein shows the braille code word, and two other braille contact 25 is used for the current location of mark cursor.
8 braille contacts 25 of every group realize that the specific implementation of lifting is: braille contact action device 23 comprises that 40 contacts control sub-devices 231.The master controller 22 that the aobvious device of this braille point comprises is connected with 40 sub-devices 231 of braille contact control respectively, and the sub-device 231 of each braille contact control has included 8 on-off circuits;
6 described on-off circuits wherein, the braille code word control signal that the described braille contact control signal that is used for controlling according to the contact that sub-device 231 receives comprises adds to described contact operation voltage the contact action displacement device 24 of connection corresponding to it, braille contact 25 connections that each contact action displacement device 24 is corresponding with it.
Other 2 described on-off circuits, the cursor control signal that the described braille contact control signal that is used for controlling according to the contact that sub-device 231 receives comprises adds to described contact operation voltage the contact action displacement device 24 of connection corresponding to it, braille contact 25 connections that each contact action displacement device 24 is corresponding with it.
Further, the supply voltage that the interface arrangement 21 of the aobvious device of this braille point obtains can't directly supply master controller 22 and the sub-device 232 that boosts, therefore preferably, the aobvious device of this braille point further comprises: supply unit 26, the supply voltage that this supply unit 26 obtains interface arrangement 21 are converted into master controller voltage and described supply voltage are converted into the sub-device voltage that boosts; And supply unit 26 is connected with interface arrangement 21, master controller 22 and the sub-device 232 that boosts respectively.
Wherein the supply voltage that obtains of interface arrangement 21 is 5 volts.If the chip that master controller 22 adopts is the CY7C68013 chip, the operating voltage of this chip is 3.3 volts, therefore the first change-over circuit in interface arrangement 21 obtains 3.3 volts of voltages after with the supply voltage step-down, and 3.3 volts of voltages of the first change-over circuit output provide operating voltage for the CY7C68013 chip.
If contact action displacement device 24 is piezoelectric ceramic piece, the contact operation voltage that piezoelectric ceramic piece produces Displacement-deformation is the 180-200 volt, but the supply voltage that interface arrangement 21 places obtain is 5 volts, and the sub-device 232 that needs to boost this moment obtains the contact operation voltage.
The chip that sub-device 232 adopts if wherein boost is the MAX15005 chip, and the voltage of its work is 5 volts, and the voltage of output is the contact operation voltage of 180-200 volt.
Although but the supply voltage that interface arrangement 21 obtains is 5 volts, it can not directly add to sub-device 232 places of boosting.Utilize the second change-over circuit that supply unit 26 comprises that supply voltage is carried out rectification and is transferred to the sub-device 232 that boosts this moment.
According to braille contact control signal, control will the boost contact operation voltage of 180-200 volt of sub-device 232 outputs of sub-device and add to action displacement device 24 places, contact if contact need to be risen in braille contact 25, make contact action displacement device 24 produce deformational displacements; According to braille contact control signal, when if braille contact 25 does not need to rise, the contact is controlled the boost contact operation voltage of 180-200 volt of sub-device 232 outputs of sub-device 231 blocking-up and is added to action displacement device 24 places, contact, make the contact action displacement device 24 that produces deformational displacement recover deformation, and then drive braille contact decline.
8 braille contacts 25 that every group of braille code word of the present embodiment comprises all are connected with contact action displacement device 24, and each contact action displacement device 24 all connects the sub-device 231 of contactor control.Sub-device 231 is controlled in a plurality of contacts can be connected with respectively the sub-device 232 that boosts, and also can control the contact operation voltage that sub-device 231 shares sub-device 232 outputs of boosting, the preferably public sub-device 232 that boosts in the present embodiment in a plurality of contacts.
The master controller 22 of the aobvious device of the braille point of the present embodiment adopts the CY7C68013 chip, and the chip that the sub-device 232 that boosts adopts is the MAX15005 chip, and the contact is controlled sub-device 231 and adopted the PCF8574 chip, can effectively reduce the cost of the aobvious device of braille point.
How the word that below illustrates for example on computing machine is converted into braille: show if " certainly " in computing machine two words can need to be put aobvious device by braille, at first by interface arrangement 21, the aobvious device of braille point is connected with computing machine.Generate computer braille code word corresponding to " certainly " two Chinese characters in computer-internal, read about the computer braille codeword information of " certainly " and obtain supply voltage by interface arrangement 21, preferably this interface arrangement 21 is the USB mouth.
After interface arrangement 21 obtains supply voltage, this supply voltage is transferred to supply unit 26 places.Supply unit 26 is separately converted to the supply voltage that gets the master controller voltage of the sub-device voltage of 5 volts boost and 3.3 volts, and offers respectively boost sub-device 232 and master controller 22.
The sub-device 232 that wherein boosts further rises to 5 volts of voltages of supply unit 26 inputs the contact operation voltage of 180-200 volt.
After interface arrangement 21 obtained computer braille codeword information about " certainly " in addition, the computer braille codeword information that will be somebody's turn to do about " certainly " was transferred to master controller 22, and wherein the chip that adopts of master controller 22 is the CY7C68013 chip.The computer braille codeword information about " certainly " that master controller 22 will read is converted into the braille contact control signal about " certainly ", should comprise braille code word control signal and cursor control signal about the braille contact control signal of " certainly "; The braille that wherein can determine this " certainly " according to braille code word control signal is comprised of four groups of braille code words and by which adjacent four groups of braille contact 25 is shown and the lifting relation of 6 braille contacts 25 of determining that every group of braille code character comprise.Wherein the aobvious device of this braille point comprises 40 groups of braille code words, and every group comprises 8 braille contacts 25, and wherein 6 are used for showing the braille code word, and two other is used for showing current cursor position.
master controller 22 will be transferred to about the braille contact control signal of " certainly " four groups of braille contacts 25 of being determined by master controller 22 and corresponding contact control sub-devices 231 respectively, each contact is controlled sub-device 231 and is connected corresponding on-off circuit according to the braille code word control signal that correspondence obtains, by on-off circuit, the contact operation voltage is added to the contact action displacement device 24 of connection corresponding to it, contact action displacement device 24 produces Displacement-deformation under the effect of contact operation voltage, and then drive connected braille contact 25 and rise, as shown in Figure 3, the braille contact 25 that the circle expression of black is risen, the circle expression of white not have the braille contact 25 of rise.Formed thus the braille code word of " certainly ", " certainly " word that the blind person can read in current calculating by touching braille contact 25.
in addition, braille contact 25 control signals about " certainly " also comprise cursor control signal, should " when " braille of word and " so " word is comprised of two groups of braille code words respectively, wherein according to this cursor control signal determine expression " when " lifting of two other braille contact 25 of first group of braille code word of word, the lifting of two other braille contact 25 of first group of braille code word of expression " so " word, each contact is controlled sub-device 231 and is connected corresponding on-off circuit according to the cursor control signal that correspondence obtains, by on-off circuit, the contact operation voltage is added to the contact action displacement device 24 of connection corresponding to it, contact action displacement device 24 produces Displacement-deformation under the effect of contact operation voltage, and then drive contact 25 liftings of connected braille.Can obtain thus the current location of cursor in computing machine.Usually when showing " certainly ", the contact of expression cursor be alternately lifting so do not carry out mark in three kinds, figure.
Separately attached: 8 braille contacts 25 that every group of braille code word comprises form the matrix of 4 row 2 row, and wherein first three rows is used for representing the braille code word; Fourth line is used for representing cursor position.
The various embodiment that the utility model provides can be as required combination mutually in any way, the technical scheme that obtains by this combination is also in scope of the present utility model.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also comprises these changes and modification interior.
Claims (10)
1. the aobvious device of braille point, is characterized in that, comprising: master controller, braille contact action device, the braille contact of a plurality of contacts action displacement device and difference correspondence thereof;
Described master controller is used for the computer braille codeword information that reads is converted into braille contact control signal, and described braille contact control signal is transferred to described braille contact action device;
Action device in described braille contact is used for generating the contact operation voltage, and according to the described braille contact control signal that receives, described contact operation voltage is added to described contact action displacement device;
Described contact action displacement device produces Displacement-deformation under the effect of described contact operation voltage;
Each described braille contact produces braille contact lifting under the drive of the Displacement-deformation that its corresponding contact action displacement device produces;
Wherein said master controller is connected with described braille contact action device, and described braille contact action device is connected respectively with a plurality of described contacts action displacement device, the braille contact connection that each contact action displacement device is corresponding with it.
2. the aobvious device of braille point according to claim 1, is characterized in that, described braille contact action device comprises: sub-device is controlled in boost sub-device and a plurality of contact;
The described sub-device that boosts is used for generating the contact operation voltage, and the described sub-device that boosts is connected respectively with the sub-device of a plurality of described contacts control;
Each described contact is controlled sub-device and is comprised a plurality of on-off circuits, is connected respectively a contact action displacement device by each on-off circuit;
Sub-device is controlled according to the described braille contact control signal that receives in each described contact, by each on-off circuit, described contact operation voltage is added to the contact action displacement device of connection corresponding to it.
3. the aobvious device of braille point according to claim 2, is characterized in that, each described contact is controlled sub-device and included 8 on-off circuits;
6 described on-off circuits wherein, the braille code word control signal that the described braille contact control signal that is used for controlling according to described contact that sub-device receives comprises adds to described contact operation voltage the contact action displacement device of connection corresponding to it;
Other 2 described on-off circuits, the cursor control signal that the described braille contact control signal that is used for controlling according to described contact that sub-device receives comprises adds to described contact operation voltage the contact action displacement device of connection corresponding to it.
4. the aobvious device of braille point according to claim 3, is characterized in that, described braille contact action device comprises 40 sub-devices of described contacts control.
5. the aobvious device of braille point according to claim 2, is characterized in that, further comprises: the interface arrangement that is used for reading the computer braille codeword information;
Described interface arrangement also is used for obtaining supply voltage;
Described interface arrangement is connected with described master controller.
6. the aobvious device of braille point according to claim 5, is characterized in that, further comprises: be used for the supply unit that described supply voltage is converted into master controller voltage and described supply voltage is converted into the sub-device voltage that boosts;
Described supply unit is connected with described interface arrangement, described master controller and the described sub-device that boosts respectively.
7. the aobvious device of braille point according to claim 1, is characterized in that, described contact action displacement device is piezoelectric ceramic piece.
8. the aobvious device of braille point according to claim 1, is characterized in that, described master controller adopts the CY7C68013 chip.
9. the aobvious device of braille point according to claim 2, is characterized in that,
The described sub-device that boosts adopts the MAX15005 chip;
And/or
Described contact is controlled sub-device and is adopted the PCF8574 chip.
10. the aobvious device of braille point according to claim 5, is characterized in that, described interface arrangement is USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026826 CN203026000U (en) | 2013-01-17 | 2013-01-17 | Braille point display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026826 CN203026000U (en) | 2013-01-17 | 2013-01-17 | Braille point display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026000U true CN203026000U (en) | 2013-06-26 |
Family
ID=48649966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320026826 Expired - Lifetime CN203026000U (en) | 2013-01-17 | 2013-01-17 | Braille point display |
Country Status (1)
| Country | Link |
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| CN (1) | CN203026000U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517505A (en) * | 2014-12-11 | 2015-04-15 | 郑遥 | Electronic book for blind person |
| CN106445187A (en) * | 2016-10-09 | 2017-02-22 | 刘咏灏 | Braille electronic inputting device |
| CN111932992A (en) * | 2020-08-26 | 2020-11-13 | 北京红点互联技术研发有限公司 | Braille display module and Braille display device |
| TWI752830B (en) * | 2021-02-24 | 2022-01-11 | 輔仁大學學校財團法人輔仁大學 | Teaching aid structure and teaching system for learning braille |
-
2013
- 2013-01-17 CN CN 201320026826 patent/CN203026000U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517505A (en) * | 2014-12-11 | 2015-04-15 | 郑遥 | Electronic book for blind person |
| CN106445187A (en) * | 2016-10-09 | 2017-02-22 | 刘咏灏 | Braille electronic inputting device |
| CN106445187B (en) * | 2016-10-09 | 2018-11-27 | 石美秀 | A kind of braille electronics input device |
| CN111932992A (en) * | 2020-08-26 | 2020-11-13 | 北京红点互联技术研发有限公司 | Braille display module and Braille display device |
| TWI752830B (en) * | 2021-02-24 | 2022-01-11 | 輔仁大學學校財團法人輔仁大學 | Teaching aid structure and teaching system for learning braille |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
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| CX01 | Expiry of patent term |