CN109062320A - The display methods of miniature electronic abacus and miniature electronic abacus - Google Patents
The display methods of miniature electronic abacus and miniature electronic abacus Download PDFInfo
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- CN109062320A CN109062320A CN201810860140.4A CN201810860140A CN109062320A CN 109062320 A CN109062320 A CN 109062320A CN 201810860140 A CN201810860140 A CN 201810860140A CN 109062320 A CN109062320 A CN 109062320A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C1/00—Computing aids in which the computing members form at least part of the displayed result and are manipulated directly by hand, e.g. abacuses or pocket adding devices
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Abstract
The invention discloses a kind of miniature electronic abacus, the electrical abacus includes braced frame and multiple beads, and the electrical abacus includes: the bead of default gear number, and the default gear number is less than 9 grades, wherein every grade of bead includes a upper pearl and a lower pearl；Sensing device is stirred, is electrically connected with each bead, is sent to arithmetic unit for obtaining the signal of stirring of each bead, and by the signal of stirring；Arithmetic unit is electrically connected with the sensing device of stirring, and for carrying out operation based on the signal of stirring, and generates operation result；Display device is electrically connected with the arithmetic unit, is shown for obtaining the operation result, and to the operation result.The invention also discloses a kind of display methods of miniature electronic abacus.By the way that traditional abacus is carried out electronic improvement, to also enrich the calculation function of abacus on the basis of reducing the occupied space of abacus, improve user experience.
Description
Technical field
The present invention relates to teaching fields, more particularly to a kind of miniature electronic abacus and a kind of display of miniature electronic abacus
Method.
Background technique
In the development process of human civilization, counts and have existed for thousands of years as the basis of human lives and will continue
In the presence of, and with the abacus occurred together that counts, it as long as also having existed for more than one thousand years, and is answering for the mankind as auxiliary tool
The miscellaneous process of counting provides effective booster action, accelerates the development process of human civilization.
The form of abacus because the Different Culture of country variant and there are many form is showed, at home, traditional abacus one
As be nine grades to 15 grades, every grade include seven beads, wherein performing two, lower gear five, outside is supported by general frame, people
Abacus can be placed in shop carry out auxiliary calculating or be carried to need place to be used carry out using.
Due to people in the past had inconvenient traffic or with carry thing it is few, often do not need carry abacus carry out
Migration carrying abacus and does not think pretty troublesome yet, however during the modern life, since traffic becomes more flourishing,
Therefore people generally require frequently to be migrated in different places, especially need to carry out the teacher of teaching demonstration, often need
It carries abacus and carries out teaching demonstration in different places, and traditional abacus is due to its general frame and the bead of multi gear position
Cause the occupied space of abacus larger, causes great puzzlement for the normal use and daily carrying of people.
On the other hand, traditional abacus can only carry out passively auxiliary operation according to the operation of stirring of user, and be unable to satisfy existing
There is the actual demand in life or teaching process to data operation.
Summary of the invention
In order to overcome the technology that traditional abacus occupied space is big, not readily portable and single calculation function in the prior art
Problem, the embodiment of the present invention provide a kind of miniature electronic abacus and a kind of display methods of miniature electronic abacus, by will be traditional
Abacus carries out electronic improvement, so that the calculation function of abacus is also enriched on the basis of reducing the occupied space of abacus,
Improve user experience.
To achieve the goals above, the embodiment of the present invention provides a kind of miniature electronic abacus, and the electrical abacus includes branch
Support frame frame and multiple beads, the electrical abacus include: the bead of default gear number, and the default gear number is less than 9 grades, wherein often
Shelves bead includes a upper pearl and a lower pearl；Sensing device is stirred, is electrically connected with each bead, for obtaining each institute
The signal of stirring of bead is stated, and the signal of stirring is sent to arithmetic unit；Arithmetic unit stirs sensing device electricity with described
Connection for carrying out operation based on the signal of stirring, and generates operation result；Display device is electrically connected with the arithmetic unit
It connects, is shown for obtaining the operation result, and to the operation result.
Preferably, described that operation is carried out based on the signal of stirring, and generate operation result, comprising: it is stirred described in acquisition
The transmission address of signal, and the corresponding calculating magnitude of signal is stirred with described based on the transmission address is determining；Based on described group
Trend is stirred in dynamic signal determination；Trend is stirred and calculation amount is stirred in calculating magnitude generation based on described, and based on default
Initial calculation basis and it is described stir calculation amount generate operation result.
Preferably, described that the operation result is shown, comprising: judge the operation result maximum number of digits whether
Maximum more than bead indicates range；In maximum the case where indicating range that the maximum number of digits of the operation result is more than bead
Under, obtain the maximum unit and minimum unit of the bead, will in the operation result be located at the maximum unit with it is described
Data between minimum unit are highlighted.
Preferably, the electrical abacus further includes operating area, includes displacement button in the operating area, described to institute
It states operation result to be shown further include: obtain the shifting function of user；Based on bead described in the shifting function synchronous adjustment
Maximum unit and minimum unit, with generate adjustment maximum unit and adjustment minimum unit；By position in the operation result
Data between the adjustment maximum unit and the adjustment minimum unit are highlighted.
Preferably, the braced frame includes the first subframe and the second subframe, wherein the bead and described stirring
Sensing device is set in first subframe, and the arithmetic unit and the display device are set to second subframe
Interior, first subframe and second subframe are linked together by fixing axle, and first subframe can be along institute
It states fixing axle and second subframe relatively rotates.
Preferably, the electrical abacus further includes suggestion device, and the suggestion device is electrically connected with the arithmetic unit, is used
In stirring signal or the operation result is converted to prompt information for described, and the prompt information is played to user.
Correspondingly, the electrical abacus includes multiple calculations the present invention also provides a kind of display methods of miniature electronic abacus
Pearl, the display methods include: obtain each bead stir signal；Operation is carried out based on the signal of stirring, and raw
At operation result；The operation result is obtained, and the operation result is shown.
Preferably, described that operation is carried out based on the signal of stirring, and generate operation result, comprising: it is stirred described in acquisition
The transmission address of signal, and the corresponding calculating magnitude of signal is stirred with described based on the transmission address is determining；Based on described group
Trend is stirred in dynamic signal determination；Trend is stirred and calculation amount is stirred in calculating magnitude generation based on described, and based on default
Initial calculation basis and it is described stir calculation amount generate operation result.
Preferably, described that the operation result is shown, comprising: judge the operation result maximum number of digits whether
Maximum more than bead indicates range；In maximum the case where indicating range that the maximum number of digits of the operation result is more than bead
Under, obtain the maximum unit and minimum unit of the bead, will in the operation result be located at the maximum unit with it is described
Data between minimum unit are highlighted.
Preferably, described that the operation result is shown further include: to obtain the shifting function of user；Based on the shifting
The maximum unit and minimum unit of bead described in bit manipulation synchronous adjustment, it is minimum single to generate adjustment maximum unit and adjustment
Position；The data being located between the adjustment maximum unit and the adjustment minimum unit in the operation result are carried out prominent aobvious
Show.
The technical solution provided through the invention, the present invention at least have the following technical effect that
By carrying out electronic improvement on the basis of traditional abacus, stirring for bead is converted into electronic signal, and lead to
It crosses and the unit of bead is adjusted to realize the auxiliary operation for realizing infinite place data by limited bead gear number, and will
Operation result progress is electronically displayed, to improve teaching demonstration effect, teaching demonstration quality is improved, thus reducing
On the basis of the occupied space of abacus, the calculation function of abacus is also enriched, user experience is improved.
The other feature and advantage of the embodiment of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to further understand for providing to the embodiment of the present invention, and constitute part of specification, under
The specific embodiment in face is used to explain the present invention embodiment together, but does not constitute the limitation to the embodiment of the present invention.Attached
In figure:
Fig. 1 is the structural schematic diagram of miniature electronic abacus provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram stirred bead in miniature electronic abacus provided in an embodiment of the present invention and carry out operation；
Fig. 3 is to carry out highlighted schematic diagram to operation result in miniature electronic abacus provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of configuration displacement button in miniature electronic abacus provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of braced frame in miniature electronic abacus provided in an embodiment of the present invention；
Fig. 6 is the specific implementation flow chart of the display methods of miniature electronic abacus provided in an embodiment of the present invention.
Description of symbols
100 braced frame, 101 first subframe
102 second subframe, 200 bead
300 stir 400 arithmetic unit of sensing device
500 display devices 600 shift button
Specific embodiment
In order to overcome the technology that traditional abacus occupied space is big, not readily portable and single calculation function in the prior art
Problem, the embodiment of the present invention provide a kind of miniature electronic abacus and a kind of display methods of miniature electronic abacus, by will be traditional
Abacus carries out electronic improvement, so that the calculation function of abacus is also enriched on the basis of reducing the occupied space of abacus,
Improve user experience.
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
Term " system " and " network " in the embodiment of the present invention can be used interchangeably." multiple " refer to two or two with
On, in consideration of it, " multiple " can also be interpreted as " at least two " in the embodiment of the present invention."and/or" describes affiliated partner
Incidence relation indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, single
Solely there are these three situations of B.In addition, character "/", unless otherwise specified, typicallying represent forward-backward correlation object is a kind of "or"
Relationship.In addition, it is necessary to understand, in the description of the embodiment of the present invention, the vocabulary such as " first ", " second " are only used for distinguishing
The purpose of description, is not understood to indicate or imply relative importance, can not be interpreted as indication or suggestion sequence.
Referring to Figure 1, the embodiment of the present invention provides a kind of miniature electronic abacus, and the electrical abacus includes braced frame
100 and multiple beads 200, the electrical abacus include: the bead of default gear number, the default gear number is less than 9 grades, wherein often
Shelves bead includes a upper pearl and a lower pearl；Sensing device 300 is stirred, is electrically connected with each bead 200, it is each for obtaining
Bead 200 stirs signal, and the signal of stirring is sent to arithmetic unit 400；Arithmetic unit 400 is filled with induction is stirred
300 electrical connections are set, for carrying out operation based on the signal of stirring, and generate operation result；Display device 500 is filled with operation
400 electrical connections are set, are shown for obtaining the operation result, and to the operation result.
Preferably, the default gear number of the miniature electronic abacus is 3-6 grades.
In embodiments of the present invention, by carrying out electronic improvement to traditional abacus, so as to greatly reduce tradition
The structure of abacus only can be realized as rechoning by the abacus function identical with traditional abacus by the bead 200 of a small amount of gear number, greatly reduce
The volume of miniature electronic abacus, convenient for teaching, teacher is carried, while being realized by display device 500 to operation result
Real-time display, the teacher that is more convenient for imparting knowledge to students observe and adjust to the data of operation, improve operating for miniature electronic abacus
Property, improve user experience.
In embodiments of the present invention, described that operation is carried out based on the signal of stirring, and generate operation result, comprising: it obtains
It takes the transmission address for stirring signal, and is determined based on the transmission address and stir the corresponding calculating magnitude of signal with described；
Based on it is described stir signal determination stir trend；Based on it is described stir trend and the calculating magnitude generation stir calculation amount,
And operation result is generated based on preset initial calculation basis and the calculation amount of stirring.
Fig. 2 is referred to, in a kind of possible embodiment, the miniature electronic abacus is 5 grades of electrical abacus, Yong Hu
During carrying out auxiliary operation, need to stir corresponding bead 200, such as dial up the 2nd grade of lower pearl, the dress of operation at this time
It sets 400 and gets an electronic signal from sensing device 300 is stirred, and parse the electronic signal and sent by the lower pearl of second gear
, and according to the position acquisition of the bead 200 to corresponding calculating magnitude be ten, and further obtained according to the electronic signal
To the bead 200 have upward movement tendency, therefore according to the calculating magnitude of the bead 200 and stir trend determination stir
Calculation amount is to add ten on the basis of former data, and it is 5000 that arithmetic unit 400, which gets preset initial calculation basis, at this time, because
This operation result for obtaining this is 5000+10=5010.
In embodiments of the present invention, by traditional abacus stir movement and corresponding movement meaning solve
Analysis only retains in every grade of miniature electronic abacus under upper a pearl and one so that duplicate bead 200 be simplified
Pearl, to substantially reduce the volume and occupied space of miniature electronic abacus, while can according to user to stir operation fast
Speed acquisition is corresponding to stir calculation amount, to realize same calculation function, obtains same operation result, is meeting user
Carrying demand in the case where, also improve user experience.
In embodiments of the present invention, described that the operation result is shown, comprising: to judge the operation result most
Whether big digit is more than that the maximum of bead indicates range；It is more than that the maximum of bead indicates model in the maximum number of digits of the operation result
In the case where enclosing, the maximum unit and minimum unit of the bead are obtained, will be located in the operation result described maximum single
Data between position and the minimum unit are highlighted.
Fig. 3 is referred to, in a kind of possible embodiment, miniature electronic abacus, will be current after being calculated every time
Calculated result as the initial calculation basis calculated next time, in certain calculating process user using 4 grades of miniature electronic abacuses into
Row auxiliary calculates, and current calculated result is 611204, at this time user by stir the bead of third gear to current calculated result into
Row is further to be calculated, and arithmetic unit 400 stirs corresponding electronic signal with this from stirring sensing device 300 and get, and solves
It is to subtract 1000 on the basis of former data, therefore obtaining this operation result is 611204- that corresponding calculation amount of stirring, which is precipitated,
1000=610204.Due to the data that this operation result is 6, and miniature electronic abacus only has 4 grades of beads 200, therefore transports
The maximum number of digits for calculating result is more than that the maximum of bead 200 indicates range, and display device 500 will also after getting operation result
The maximum unit and minimum unit of the bead 200 of miniature electronic abacus are further obtained, such as in embodiments of the present invention, is calculated
The maximum unit of pearl 200 is 100,000, minimum unit hundred, therefore display device 500 is during showing entire operation result,
Also the data between maximum unit and minimum unit are highlighted, such as in embodiments of the present invention, it can be by operation
As a result large print is shown preceding 4 digit accordingly, and normal font is shown rear 2 digit accordingly.
In embodiments of the present invention, by particularly being shown according to the gear number of bead 200 to operation result, even if working as
The data bits of preceding operation is greater than the gear number of the bead 200 of miniature electronic, also still can be during auxiliary operation to fortune
It calculates result effectively to be shown, while user can be allowed to know clearly the data bits of oneself current operation is how many, and
It does not need to carry out artificial operation to every grade of bead 200 to know the current operation result for carrying out operation, reduces user to operation
As a result acquisition difficulty, realizes additional function, improves user experience.
Fig. 4 is referred to, in embodiments of the present invention, the electrical abacus further includes operating area, in the operating area
It is described that the operation result is shown further include: to obtain the shifting function of user including shifting button 600；Based on described
The maximum unit and minimum unit of shifting function synchronous adjustment bead 200, it is minimum to generate adjustment maximum unit and adjustment
Unit；The data being located between the adjustment maximum unit and the adjustment minimum unit in the operation result are protruded
Display.
In a kind of possible embodiment, the maximum number of digits of miniature electronic abacus bead 200 is 100,000, and minimum number of bits is
Ten, and user needs to carry out units operation at this time, therefore carries out shifting function by displacement button 600, by bead 200
Maximum number of digits be adjusted to ten thousand, minimum number of bits is adjusted to, and at this time accordingly, display device 500 is according to adjusted maximum single
Position and minimum unit re-start operation result and highlight.
In embodiments of the present invention, by increasing displacement button 600 for miniature electronic abacus, user can not increase volume
In the case where the bead of outer gear number, it still can satisfy user to the operation demand of the data of any digit, reduce micro electric
The volume and occupied space of sub- abacus, improve user experience.
Fig. 5 is referred to, in embodiments of the present invention, braced frame 100 includes the first subframe 101 and the second subframe
102, wherein bead 200 and stirs sensing device 300 and be set in the first subframe 101, arithmetic unit 400 and display device
500 are set to 102 in the second subframe, and the first subframe 101 and the second subframe 102 are linked together by fixing axle 103,
First subframe 101 can be relatively rotated along fixing axle 103 and the second subframe 102.
In embodiments of the present invention, by the way that braced frame 100 to be decomposed into the first subframe 101 and second of rotation connection
Subframe 102, so as to carry out folding operation to miniature electronic abacus according to actual needs, to further shorten micro electric
The length of sub- abacus reduces the occupied space of miniature electronic abacus, easily facilitates user and carry, while not influencing to miniature
The use of electrical abacus, improves user experience.
Further, in embodiments of the present invention, the electrical abacus further includes suggestion device, the suggestion device and fortune
It calculates device 400 to be electrically connected, for stirring signal or the operation result is converted to prompt information for described, and plays institute to user
State prompt information.
Prompt information is converted into real time by the way that signal or operation result will be stirred and user is played out, thus with
Family can know whether to stir mistake during being stirred in time, to avoided in time because transporting caused by stirring mistake
Mistake is calculated, the operation accuracy of user in use is substantially increased, improves operation when user carries out auxiliary operation
Accuracy improves the operating efficiency of user.
The display methods for being provided for the embodiments of the invention miniature electronic abacus with reference to the accompanying drawing is illustrated.
Fig. 6 is referred to, based on the same inventive concept, the embodiment of the present invention provides a kind of display side of miniature electronic abacus
Method, the electrical abacus include multiple beads, and the display methods includes:
S10) obtain each bead stirs signal；
S20 operation) is carried out based on the signal of stirring, and generates operation result；
S30 the operation result) is obtained, and the operation result is shown.
In embodiments of the present invention, described that operation is carried out based on the signal of stirring, and generate operation result, comprising: it obtains
It takes the transmission address for stirring signal, and is determined based on the transmission address and stir the corresponding calculating magnitude of signal with described；
Based on it is described stir signal determination stir trend；Based on it is described stir trend and the calculating magnitude generation stir calculation amount,
And operation result is generated based on preset initial calculation basis and the calculation amount of stirring.
In embodiments of the present invention, described that the operation result is shown, comprising: to judge the operation result most
Whether big digit is more than that the maximum of bead indicates range；It is more than that the maximum of bead indicates model in the maximum number of digits of the operation result
In the case where enclosing, the maximum unit and minimum unit of the bead are obtained, will be located in the operation result described maximum single
Data between position and the minimum unit are highlighted.
In embodiments of the present invention, described that the operation result is shown further include: to obtain the shifting function of user；
Based on the maximum unit and minimum unit of bead described in the shifting function synchronous adjustment, with generate adjustment maximum unit and
Adjust minimum unit；The data between the adjustment maximum unit and the adjustment minimum unit will be located in the operation result
It is highlighted.
The optional embodiment of the embodiment of the present invention is described in detail in conjunction with attached drawing above, still, the embodiment of the present invention is simultaneously
The detail being not limited in above embodiment can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection scope of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the embodiment of the present invention pair
No further explanation will be given for various combinations of possible ways.
It will be appreciated by those skilled in the art that implementing the method for the above embodiments is that can pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of the steps of each embodiment the method for the application.And it is preceding
The storage medium stated includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk.
In addition, any combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, equally should be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of miniature electronic abacus, the electrical abacus includes braced frame and multiple beads, which is characterized in that the electricity
Sub- abacus includes:
The bead of default gear number, the default gear number is less than 9 grades, wherein every grade of bead includes a upper pearl and a lower pearl；
Sensing device is stirred, is electrically connected with each bead, for obtaining the signal of stirring of each bead, and will be described
It stirs signal and is sent to arithmetic unit；
Arithmetic unit is electrically connected with the sensing device of stirring, and for carrying out operation based on the signal of stirring, and generates operation
As a result；
Display device is electrically connected with the arithmetic unit, is shown for obtaining the operation result, and to the operation result
Show.
2. electrical abacus according to claim 1, which is characterized in that it is described that operation is carried out based on the signal of stirring, and
Generate operation result, comprising:
It stirs the transmission address of signal described in acquisition, and stirs the corresponding calculating of signal with described based on the transmission address is determining
Magnitude；
Based on it is described stir signal determination stir trend；
Stir trend and calculation amount is stirred in calculating magnitude generation based on described, and based on preset initial calculation basis with
And the calculation amount of stirring generates operation result.
3. electrical abacus according to claim 1, which is characterized in that described to be shown to the operation result, comprising:
Whether the maximum number of digits for judging the operation result is more than that the maximum of bead indicates range；
In the case where the maximum number of digits of the operation result is more than the maximum expression range of bead, the maximum of the bead is obtained
Unit and minimum unit carry out the data in the operation result between the maximum unit and the minimum unit
It highlights.
4. electrical abacus according to claim 3, which is characterized in that the electrical abacus further includes operating area, described
It include displacement button in operating area, it is described that the operation result is shown further include:
Obtain the shifting function of user；
Based on the maximum unit and minimum unit of bead described in the shifting function synchronous adjustment, to generate adjustment maximum unit
And adjustment minimum unit；
The data being located between the adjustment maximum unit and the adjustment minimum unit in the operation result are protruded
Display.
5. electrical abacus described in any claim in -4 according to claim 1, which is characterized in that the braced frame includes
First subframe and the second subframe, wherein the bead and the sensing device of stirring are set in first subframe,
The arithmetic unit and the display device are set in second subframe, first subframe and the second sub- frame
Frame is linked together by fixing axle, and first subframe can be opposite with second subframe turn along the fixing axle
It is dynamic.
6. electrical abacus described in any claim in -4 according to claim 1, which is characterized in that the electrical abacus also wraps
Suggestion device is included, the suggestion device is electrically connected with the arithmetic unit, for stirring signal or the operation result for described
Prompt information is converted to, and plays the prompt information to user.
7. a kind of display methods of miniature electronic abacus, the electrical abacus include multiple beads, which is characterized in that the display
Method includes:
Obtain each bead stirs signal；
Operation is carried out based on the signal of stirring, and generates operation result；
The operation result is obtained, and the operation result is shown.
8. display methods according to claim 7, which is characterized in that it is described that operation is carried out based on the signal of stirring, and
Generate operation result, comprising:
It stirs the transmission address of signal described in acquisition, and stirs the corresponding calculating of signal with described based on the transmission address is determining
Magnitude；
Based on it is described stir signal determination stir trend；
Stir trend and calculation amount is stirred in calculating magnitude generation based on described, and based on preset initial calculation basis with
And the calculation amount of stirring generates operation result.
9. display methods according to claim 7, which is characterized in that described to be shown to the operation result, comprising:
Whether the maximum number of digits for judging the operation result is more than that the maximum of bead indicates range；
In the case where the maximum number of digits of the operation result is more than the maximum expression range of bead, the maximum of the bead is obtained
Unit and minimum unit carry out the data in the operation result between the maximum unit and the minimum unit
It highlights.
10. display methods as claimed in claim 9, which is characterized in that described to be shown to the operation result further include:
Obtain the shifting function of user；
Based on the maximum unit and minimum unit of bead described in the shifting function synchronous adjustment, to generate adjustment maximum unit
And adjustment minimum unit；
The data being located between the adjustment maximum unit and the adjustment minimum unit in the operation result are protruded
Display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810860140.4A CN109062320A (en) | 2018-08-01 | 2018-08-01 | The display methods of miniature electronic abacus and miniature electronic abacus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860140.4A CN109062320A (en) | 2018-08-01 | 2018-08-01 | The display methods of miniature electronic abacus and miniature electronic abacus |
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| CN109062320A true CN109062320A (en) | 2018-12-21 |
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| CN201810860140.4A Pending CN109062320A (en) | 2018-08-01 | 2018-08-01 | The display methods of miniature electronic abacus and miniature electronic abacus |
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| CN1601508A (en) * | 2004-10-08 | 2005-03-30 | 余丽萍 | Electronic abacus and its operation method |
| CN1797383A (en) * | 2004-12-22 | 2006-07-05 | 叶博飞 | Faceplate of electronic calculator convenient for plus minus method |
| CN202649865U (en) * | 2012-05-31 | 2013-01-02 | 苏利平 | Multi-functional abacus |
| US20170229039A1 (en) * | 2014-09-05 | 2017-08-10 | Digika Co., Ltd. | Abacus calculation type mental arithmetic learning support device, abacus calculation type mental arithmetic learning support program, and abacus calculation type mental arithmetic learning support method |
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