CN109886203B - Remote signing method, remote signing terminal and remote signing system - Google Patents
Remote signing method, remote signing terminal and remote signing system Download PDFInfo
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Abstract
The embodiment of the application provides a remote signing method, a remote signing terminal and a remote signing system, which relate to the technical field of remote signing, wherein a signing pen acquires fingerprint data and handwriting data of a signing user during signing by using the signing pen at the current moment and sends the fingerprint data and the handwriting data to the remote signing terminal in an encrypted manner, then the remote signing terminal processes the fingerprint data and the handwriting data to obtain ink release ratio information, the remote signing terminal can generate a control instruction carrying the ink release ratio information and the handwriting data and is used for controlling the remote signing terminal to remotely sign according to the ink release ratio information and the handwriting data according to the control instruction, in the scheme, the signing user can carry out remote signing, so that the document signing is more convenient and faster, and the ink release ratio information is obtained according to the fingerprint data and the handwriting data of the signing user through the signing pen at the current moment, therefore, other personnel cannot steal and copy the handwriting data, and the purpose of ensuring the signature safety is achieved.
Description
Technical Field
The application relates to the technical field of remote signature, in particular to a remote signature method, a remote signature end and a remote signature system.
Background
As the amount of office activity increases, more and more documents need to be signed by signers, and the range of office places is continuously enlarged, so that the signature becomes very troublesome if the signers and the documents to be signed are not in the same place, and particularly, the signature documents need to be signed in a short time.
At present, when a document is signed, a party generally needs to sign the document on the spot to ensure the authenticity and effectiveness of the document, but under some conditions, if the party cannot sign the document on the spot, only others can be found for signing instead, and the situation can cause others to forge the signature, so that the signature of the document is unsafe.
Disclosure of Invention
In view of the above, an object of the embodiments of the present application is to provide a remote signature method, a sign pen, a remote signature end and a remote signature system, so as to solve the problem that the signature security cannot be guaranteed.
In a first aspect, an embodiment of the present application provides a remote signing method, which is applied to a remote signing side, and the method includes: receiving handwriting data and fingerprint data sent by a sign pen in an encrypted manner, wherein the handwriting data and the fingerprint data are obtained by the sign pen when a sign user signs at the current moment through the sign pen; acquiring ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data; and generating a control instruction according to the ink release ratio information and the handwriting data so that the remote signing terminal carries out remote signing according to the control instruction and the ink release ratio information and the handwriting data.
In the implementation process, the encrypted fingerprint data and the encrypted handwriting data of the signing user are acquired when the signing user signs words through the signing pen at the current moment, the remote signing end receives the encrypted fingerprint data and the encrypted handwriting data and processes the encrypted fingerprint data and the encrypted handwriting data to obtain the ink release proportion information, the ink release proportion information is used for the remote signing end to sign in the signing process, the remote signing end generates a control instruction carrying the ink release proportion information and the handwriting data, so that the remote signing end can remotely sign according to the ink release proportion information and the handwriting data according to the control instruction, the signing user can remotely sign in the scheme, the document signing is more convenient, and other personnel cannot embezzle and imitate the handwriting data because the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signing user when the signing through the signing pen at the current moment, thereby realizing the purpose of ensuring the signature safety.
Further, the obtaining of the ink release ratio information used for the remote signing terminal during signing according to the fingerprint data and the handwriting data includes: dividing the fingerprint data into N fingerprint data segments, and dividing the handwriting data into N handwriting data segments, wherein N is a positive integer greater than or equal to 2; taking i as 1 to N, performing data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain an ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and when i is equal to N, obtaining N fusion data segments in total; and obtaining fusion data according to the N fusion data fragments, wherein the fusion data comprises ink release ratio information used for signing by the remote signing end in the signing process.
In the implementation process, firstly, fingerprint data is divided into N fingerprint data fragments, handwriting data is divided into N handwriting data fragments, then, the ith fingerprint data fragment and the ith handwriting data fragment are subjected to data fusion processing to obtain the ith fusion data fragment, wherein the ith fusion data fragment contains ink release proportion information corresponding to the ith handwriting data fragment, then, through data fusion processing, the fusion data obtained by the N fusion data fragments can be obtained, and finally, the ink release proportion of a remote signature end during signature in the signature process can be controlled according to the fusion data, so that remote signature is implemented according to the ink release proportion information and the handwriting data, and the safety of the remote signature is ensured.
Further, the dividing the fingerprint data into N fingerprint data segments and the dividing the handwriting data into N handwriting data segments includes: acquiring a time sequence N of the signing user when signing through the signing pen at the current moment; and dividing the fingerprint data into N fingerprint data segments according to the time sequence N, and dividing the handwriting data into N handwriting data segments.
In the implementation process, firstly, a time sequence N of a signing user in signing through a signing pen at the current moment is obtained, then, the handwriting data and the fingerprint data are divided according to the time sequence N, the fingerprint data are divided into N fingerprint data fragments, the handwriting data are divided into N handwriting data fragments, the handwriting data and the fingerprint data are divided according to the time sequence, corresponding time relations between the N fingerprint data fragments and the N handwriting data fragments can be guaranteed, each fingerprint data fragment and the corresponding handwriting data fragment can be fused to obtain a fused data fragment, each fused data fragment contains ink release proportion information corresponding to the relevant handwriting data fragment, and then, remote signing is carried out according to the ink release proportion information and the handwriting data.
In a second aspect, an embodiment of the present application provides a remote signing method, where the method includes: the method comprises the steps that a sign pen obtains fingerprint data and handwriting data of a sign user when the sign user signs at the current moment through the sign pen; the sign pen sends the handwriting data and the fingerprint data to the remote sign end in an encrypted manner; the remote signing end receives handwriting data and fingerprint data sent by the sign pen in an encrypted manner; the remote signing terminal obtains ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data; and the remote signing terminal generates a control instruction according to the ink release ratio information and the handwriting data so as to remotely sign according to the control instruction and the ink release ratio information and the handwriting data.
In the implementation process, the fingerprint data and the handwriting data of the signing user are acquired when the signing user signs through the signing pen at the current moment, then the fingerprint data and the handwriting data are processed to obtain the ink release proportion information, the ink release proportion information is used for the remote signing end to sign in the signing process, finally the remote signing end generates a control instruction carrying the ink release proportion information and the handwriting data, and then the remote signing end can carry out remote signing according to the ink release proportion information and the handwriting data according to the control instruction, so that the safety of remote signing is guaranteed.
In a third aspect, an embodiment of the present application provides a remote signing terminal, where the remote signing terminal includes: the printing ink control device is connected with the signature head; the central processing device is used for receiving handwriting data and fingerprint data sent by the sign pen in an encrypted manner and obtaining ink release proportion information used for the remote signing end in signing in the signing process according to the fingerprint data and the handwriting data; the control device is used for generating a control instruction according to the ink release proportion information and the handwriting data; the signature walking device is used for driving the signature head to write on the paper surface according to handwriting data of a signature user during signature at the current moment through a signature pen; the ink control device is used for controlling the ink release proportion of the signature head according to the obtained ink release proportion information, and the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signature user during signature through the signature pen at the current moment.
In the implementation process, the remote signing end comprises a central processing device, a control device, an ink control device and a signing walking device, the central processing device can receive fingerprint data and handwriting data sent by a signing pen and acquire ink release proportion information according to the fingerprint data and the handwriting data, then the control device generates a control instruction according to the ink release proportion information and the handwriting data to control the remote signing end to carry out remote signing, a signing head arranged on the signing walking device can be driven by the signing walking device to write on a paper surface according to the handwriting data of a signing user at the current moment through the signing pen, in addition, the ink control device is connected with the signing head and can control the ink release proportion of the signing head according to the acquired ink release proportion information, so that the signing head carries out remote signing according to the ink release proportion information, thereby realizing the purpose of ensuring the signature safety.
Furthermore, the sign head comprises a plurality of ink storage channels and a plurality of air channel control valves, one end of each ink storage channel is connected with the corresponding air channel control valve, and the other end of each ink storage channel is connected with a pen point of the sign head; the ink control device controls the air passage control valve to control the ink release ratio of the pen point.
In the implementation process, the signature head comprises a plurality of ink storage channels and a plurality of air passage control valves, and the air passage control valves can control the ink amount flowing out of the ink storage channels, so that the air passage control valves can control the ink release proportion of the pen point passing through the signature head, and further the remote signature is carried out according to the ink release proportion information and the handwriting data, and the purpose of ensuring the signature safety is achieved.
Furthermore, each ink storage channel comprises a miniature electromagnetic sealer which is arranged at the tail end of the ink storage channel, and the ink control device changes the state of the miniature electromagnetic sealer by controlling the air passage control valve so as to control the ink release ratio of the pen point.
In the implementation process, each ink storage channel comprises a miniature electromagnetic obturator, and the state of each miniature electromagnetic obturator is controlled by an air passage control valve, so that the ink release proportion of a pen point can be controlled, and then remote signature is implemented according to ink release proportion information and handwriting data, and the purpose of ensuring signature safety is achieved.
In a fourth aspect, an embodiment of the present application provides a remote signing system, where the remote signing system includes a sign pen and a remote signing terminal; the sign pen is connected with the remote sign end; the sign pen is used for acquiring fingerprint data and handwriting data of a sign user when the sign user signs at the current moment through the sign pen; the sign pen is further used for sending the handwriting data and the fingerprint data to the remote sign end in an encrypted mode; the remote signing terminal is used for receiving handwriting data and fingerprint data sent by the signing pen in an encrypted manner; the remote signing terminal is also used for obtaining ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data; and the remote signing terminal is also used for generating a control instruction according to the ink release ratio information and the handwriting data so as to enable the remote signing terminal to carry out remote signing according to the control instruction and the ink release ratio information and the handwriting data.
In the implementation process, the fingerprint data and the handwriting data of the signing user are acquired by the signing pen at the current moment when the signing user signs by the signing pen, then the ink release proportion acquisition module in the signing pen processes the fingerprint data and the handwriting data to obtain the ink release proportion information, then the signing pen can send a control instruction comprising the ink release proportion information and the handwriting data to the remote signing end, finally the remote signing end receives the control instruction sent by the signing pen and remotely signs according to the ink release proportion information and the handwriting data according to the control instruction, the signing user can remotely sign in the scheme, so that the document signing is more convenient, and as the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signing user at the current moment by the signing pen, other personnel cannot embezzle and copy the handwriting data, thereby realizing the purpose of ensuring the signature safety.
In a fifth aspect, an embodiment of the present application provides a remote signing apparatus, which is applied to a remote signing side, and the apparatus includes: the central processing module is used for receiving handwriting data and fingerprint data sent by the sign pen in an encrypted manner, wherein the handwriting data and the fingerprint data are obtained by the sign pen when a sign user signs at the current moment through the sign pen; the central processing module is further used for obtaining ink release proportion information used for the remote signing end to sign in the signing process according to the fingerprint data and the handwriting data; and the control module is used for generating a control instruction according to the ink release ratio information and the handwriting data so as to enable the remote signing terminal to remotely sign according to the control instruction and the ink release ratio information and the handwriting data.
Further, the central processing module comprises: the dividing unit is used for dividing the fingerprint data into N fingerprint data segments and dividing the handwriting data into N handwriting data segments, wherein N is a positive integer greater than or equal to 2; the data fusion unit is used for taking i as 1 to N, performing data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain an ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and when i is equal to N, obtaining N fusion data segments; and the fused data acquisition unit is used for acquiring fused data according to the N fused data fragments, and the fused data comprises ink release proportion information used for signing by the remote signing end in the signing process.
In the implementation process, firstly, fingerprint data is divided into N fingerprint data segments in a dividing unit, handwriting data is divided into N handwriting data segments, then, the data fusion unit performs data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain the ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and then the fusion data acquisition unit obtains fusion data obtained by the N fusion data segments through data fusion processing, so that remote signature is implemented according to the ink release proportion information and the handwriting data, and the safety of the remote signature is ensured.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a block flow diagram of a remote signing method according to an embodiment of the present application;
FIG. 2 is a block flow diagram of another remote signing method provided by an embodiment of the present application;
fig. 3 is a block diagram illustrating a remote signing side according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a sign head according to an embodiment of the present application;
fig. 5 is a block diagram of a remote signing system according to an embodiment of the present application.
Icon: 100-sign pen; 200-remote signature end; 210-a central processing device; 220-a control device; 230-ink control means; 240-signature walking device; 241-sign-on head; 2411-an ink storage channel; 2412-an air passage control valve; 2413-nib.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a block flow diagram of a remote signing method according to an embodiment of the present application, where the remote signing method is applied to a remote signing side, and the method includes the following steps:
step S110: receiving handwriting data and fingerprint data sent by the sign pen in an encrypted manner.
The handwriting data and the fingerprint data are obtained when the sign pen signs by the sign user at the current moment.
As an implementation mode, can have the fingerprint to enter the device in the sign pen, when the sign user uses the sign pen to sign a word, can enter the device through the fingerprint and acquire the fingerprint of sign user, for the fingerprint of conveniently acquireing the sign user, enter the pen-holder department that the device set up on the sign pen with the fingerprint for the sign user can acquire the fingerprint of sign user when signing. In addition, the fingerprint data acquired by the fingerprint input device includes fingerprints of the signing user at different moments, for example, the signing user is at the 1 st second in the signing process, the fingerprint input device can acquire the fingerprint a of the signing user, the signing user is at the 2 nd second in the signing process, the fingerprint input device can acquire the fingerprint B of the signing user, the signing user is at the 3 rd second in the signing process, the fingerprint input device can acquire the fingerprint C of the signing user, wherein the fingerprint a can be the fingerprint of the index finger and the thumb of the signing user when holding a pen, in addition, the fingerprint a, the fingerprint B and the fingerprint C can be different fingerprint data acquired by the signing user in different pen holding manners in the signing process, and can also be the same fingerprint data, for example, the pen holding manners of the signing user in the 1 st second and the 2 nd second in the signing process do not change, so the fingerprint a and the fingerprint B can be the same fingerprint data, the mode of holding the pen of the signing user in the 2 nd second and the 3 rd second in the signing process changes, so the fingerprint B and the fingerprint C can be different fingerprint data, and it can be understood that the mode of the fingerprint data acquired by the fingerprint input device can be acquired according to the time interval set by the signing user, and also can be acquired according to the preset time interval.
Particularly, the sign pen acquires a plurality of fingerprint data at different time periods, one of the fingerprint data is selected finally, the integration of the fingerprint data and the handwriting data is realized to obtain the ink release proportion information of the remote signature end during signature in the signature process, for example, the signature user is in the 1 st second of the signature process, the fingerprint input device can acquire the fingerprint A of the signature user, the signature user is in the 2 nd second of the signature process, the fingerprint input device can acquire the fingerprint B of the signature user, the signature user is in the 3 rd second of the signature process, the fingerprint input device can acquire the fingerprint C of the signature user, the fingerprint data sent to the remote signature end by the sign pen in an encrypted mode can only have the fingerprint B, and in addition, the fingerprint B can be selected randomly from the fingerprint A, the fingerprint B and the fingerprint C.
As an implementation manner, a handwriting recording device may be included in the sign pen, and when the sign user signs a word with the sign pen, the handwriting of the sign user may be acquired by the handwriting recording device, for example, the signature user may acquire the handwriting a of the sign user in the 1 st second during the sign process, the handwriting recording device may acquire the handwriting B of the sign user in the 2 nd second during the sign process, and the signature user may acquire the handwriting C of the sign user in the 3 rd second during the sign process, where the handwriting a may be the first stroke of the three characters, the handwriting B may be the first part of the second stroke of the three characters, and the handwriting C may be the later part of the second stroke and the third stroke of the three characters.
Step S120: and acquiring ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data.
Optionally, step S120 includes the steps of:
a data dividing step: the fingerprint data is divided into N fingerprint data segments, and the handwriting data is divided into N handwriting data segments.
Wherein N is a positive integer greater than or equal to 2.
And (3) data fusion step: and taking i as 1 to N, performing data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain an ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and when i is equal to N, obtaining N fusion data segments.
Acquiring fusion data: and obtaining fusion data according to the N fusion data fragments, wherein the fusion data comprises ink release ratio information used for signing by the remote signing end in the signing process.
As an implementation manner, the fingerprint data is divided into N fingerprint data segments, the handwriting data is divided into N handwriting data segments, for example, N is 3, the fingerprint data can be divided into 3 fingerprint data segments, fingerprint a, fingerprint B, fingerprint C, the handwriting data can be divided into 3 handwriting data segments, handwriting a, handwriting B, handwriting C, then i can be taken as 1 to 3, when i is 1, the 1 st fingerprint data segment fingerprint a and the 1 st handwriting data segment handwriting a are subjected to data fusion processing, and the 1 st fusion data segment fusion data a is obtained, wherein the 1 st fusion data segment fusion data a contains ink release ratio information corresponding to the 1 st handwriting data segment handwriting a.
Particularly, the 1 st fused data segment fused data a contains ink release ratio information corresponding to the 1 st handwriting data segment handwriting a, the ink release ratio information may be a specific ink, for example, the handwriting of a Chinese character "one" is divided into five handwriting data segments, the ink release ratio information corresponding to the 1 st handwriting data segment handwriting a is a second ink, the ink release ratio information corresponding to the 2 nd handwriting data segment handwriting B is a second ink, the ink release ratio information corresponding to the 3 rd handwriting data segment handwriting C is a first ink, the ink release ratio information corresponding to the 4 th handwriting data segment handwriting D is a third ink, and the ink release ratio information corresponding to the 5 th handwriting data segment handwriting E is a second ink.
In addition, the ink release ratio information may also be a ratio of mixing of a plurality of inks, for example, the first ink accounts for five percent, the second ink accounts for twenty-six percent, and the third ink accounts for sixty-nine percent, when i is 2, the 2 nd fingerprint data segment fingerprint B and the 2 nd handwriting data segment handwriting B are subjected to data fusion processing to obtain the 2 nd fusion data segment fusion data B, and when i is 3, the 3 rd fingerprint data segment fingerprint C and the 3 rd handwriting data segment handwriting C are subjected to data fusion processing to obtain the 3 rd fusion data segment fusion data C.
In particular, the type of ink is not limited to three, and may be plural, and may be set according to the signature security level.
In the implementation process, firstly, fingerprint data is divided into N fingerprint data fragments, handwriting data is divided into N handwriting data fragments, then, the ith fingerprint data fragment and the ith handwriting data fragment are subjected to data fusion processing to obtain the ith fusion data fragment, wherein the ith fusion data fragment contains ink release proportion information corresponding to the ith handwriting data fragment, then, through data fusion processing, the fusion data obtained by the N fusion data fragments can be obtained, and finally, the ink release proportion of a remote signature end during signature in the signature process can be controlled according to the fusion data, so that remote signature is implemented according to the ink release proportion information and the handwriting data, and the safety of the remote signature is ensured.
Step S130: and generating a control instruction according to the ink release ratio information and the handwriting data so that the remote signing terminal carries out remote signing according to the control instruction and the ink release ratio information and the handwriting data.
Optionally, the data dividing step may include the steps of:
a time sequence acquisition step: and acquiring a time sequence N of the signing user when signing through the signing pen at the current moment.
Time sequence dividing step: and dividing the fingerprint data into N fingerprint data segments according to the time sequence N, and dividing the handwriting data into N handwriting data segments.
As an implementation manner, the time sequence N may be set by the signing user, and the setting may be irregular, for example, the first time is the 1 st second of the signing user in the signing process, the second time is the 1.5 th second of the signing user in the signing process, and the third time is the 2 nd.2 th second of the signing user in the signing process, at this time, the time sequence 3 may divide the fingerprint data into 3 fingerprint data fragments and the handwriting data into 3 handwriting data fragments, wherein the division may be performed according to the 1 st second, the 1.5 th second, and the 2.2 nd second.
In the implementation process, firstly, a time sequence N of a signing user in signing through a signing pen at the current moment is obtained, then, the handwriting data and the fingerprint data are divided according to the time sequence N, the fingerprint data are divided into N fingerprint data fragments, the handwriting data are divided into N handwriting data fragments, the handwriting data and the fingerprint data are divided according to the time sequence, corresponding time relations between the N fingerprint data fragments and the N handwriting data fragments can be guaranteed, each fingerprint data fragment and the corresponding handwriting data fragment can be fused to obtain a fused data fragment, each fused data fragment contains ink release proportion information corresponding to the relevant handwriting data fragment, and then, remote signing is carried out according to the ink release proportion information and the handwriting data.
In the implementation process, the encrypted fingerprint data and the encrypted handwriting data of the signing user are acquired when the signing user signs words through the signing pen at the current moment, the remote signing end receives the encrypted fingerprint data and the encrypted handwriting data and processes the encrypted fingerprint data and the encrypted handwriting data to obtain the ink release proportion information, the ink release proportion information is used for the remote signing end to sign in the signing process, the remote signing end generates a control instruction carrying the ink release proportion information and the handwriting data, so that the remote signing end can remotely sign according to the ink release proportion information and the handwriting data according to the control instruction, the signing user can remotely sign in the scheme, the document signing is more convenient, and other personnel cannot embezzle and imitate the handwriting data because the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signing user when the signing through the signing pen at the current moment, thereby realizing the purpose of ensuring the signature safety.
Referring to fig. 2, fig. 2 is a block flow diagram of another remote signing method provided in the embodiments of the present application, the method comprising the following steps:
step S210: the signing pen obtains fingerprint data and handwriting data of a signing user when signing through the signing pen at the current moment.
Step S220: and the sign pen sends the handwriting data and the fingerprint data to the remote sign end in an encrypted manner.
In order to ensure the safety of data during remote transmission, the sign pen can encrypt the acquired fingerprint data and handwriting data, or encrypt the process that the sign pen sends the handwriting data and the fingerprint data to a remote signature end.
Step S230: and the remote signing end receives handwriting data and fingerprint data sent by the sign pen in an encrypted manner.
After receiving the handwriting data and the fingerprint data sent by the sign pen, the remote sign end can decrypt the corresponding encryption mode, so that other personnel can not steal the handwriting data and the fingerprint data.
For example, a signing user signs in city A by using a signing pen, the signing pen encrypts and sends handwriting data and fingerprint data to a remote signing end in city B, and the remote signing end can perform corresponding cracking after receiving the encrypted handwriting data and fingerprint data.
Step S240: and the remote signing terminal obtains the ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data.
Step S250: and the remote signing terminal generates a control instruction according to the ink release ratio information and the handwriting data so as to remotely sign according to the control instruction and the ink release ratio information and the handwriting data.
The remote signing end can acquire the ink release proportion information according to the handwriting data and the fingerprint data, for example, a signing user signs in a city A by using a signing pen, and the signing pen sends the handwriting data and the fingerprint data to the remote signing end in the city B in an encryption manner, so that the remote signing end in the city B can acquire the ink release proportion information according to the handwriting data and the fingerprint data, then the remote signing end in the city B can sign according to the ink release proportion information and the handwriting data, and finally the obtained handwriting is the same as the handwriting signed by the signing user in the city A, and the signature contains the ink release proportion information, so that the signature safety can be ensured according to the ink release proportion information.
For example, the signing user signs with a signing pen, can acquire fingerprint a and handwriting a of the signing user in the 1 st second of the signing user, can acquire fingerprint B and handwriting B of the signing user in the 2 nd second of the signing user, and can acquire fingerprint C and handwriting C of the signing user in the 3 rd second of the signing user, wherein fingerprint a can be a fingerprint of an index finger and a thumb of the signing user when holding a pen, fingerprint B can be a fingerprint of an index finger and a thumb of another signing user when holding a pen, fingerprint C can be the same as fingerprint B, handwriting a can be a first horizontal stroke in three characters, handwriting B can be a front part of a second horizontal stroke in three characters, handwriting C can be a rear part of the second horizontal stroke and a third horizontal stroke in three characters, for example, time sequence N of acquiring is 3, the fingerprint data can be divided into 3 fingerprint data segments, the handwriting data can be divided into 3 handwriting data segments, the fingerprint data can be divided into 3 fingerprint data segments, fingerprint A, fingerprint B and fingerprint C, the handwriting data can be divided into 3 handwriting data segments, handwriting A, handwriting B and handwriting C, then i can be taken as 1 to 3, when i is 1, the 1 st fingerprint data segment fingerprint A and the 1 st handwriting data segment handwriting A are subjected to data fusion processing to obtain the 1 st fusion data segment fusion data A, it can be understood that when i is respectively 2 and 3, the 2 nd fusion data segment fusion data B and the 3 rd fusion data segment fusion data C can be respectively obtained, fusion data is obtained according to the 3 fusion data segments fusion data A, the fusion data B and the fusion data C, the sign pen sends a control command to a remote sign terminal according to the fusion data, the remote signing end signs according to the control instruction, the signed handwriting is the same as the handwriting signed by the signing user with the signing pen, and the ink release proportion of the signature is obtained according to the fingerprint data and the handwriting data of the signing user when the signing user signs with the signing pen, so that the signature safety can be ensured.
In addition, the same signing user carries out twice signature processes on the same characters, because the handwriting data of the two signatures are not completely the same, the handwriting data of the signatures finally obtained in the two signature processes are not completely the same, and the fingerprint data of the two signatures are possibly different according to the change of holding a pen, so the ink release ratios in the signatures finally obtained in the two signature processes are also different.
In the implementation process, the fingerprint data and the handwriting data of the signing user are acquired when the signing user signs through the signing pen at the current moment, then the fingerprint data and the handwriting data are processed to obtain the ink release proportion information, the ink release proportion information is used for the remote signing end to sign in the signing process, finally the remote signing end generates a control instruction carrying the ink release proportion information and the handwriting data, and then the remote signing end can carry out remote signing according to the ink release proportion information and the handwriting data according to the control instruction, so that the safety of remote signing is guaranteed.
Referring to fig. 3, fig. 3 is a block diagram of a remote signing terminal according to an embodiment of the present application, where the remote signing terminal 200 includes a central processing unit 210, a control unit 220, an ink control unit 230, and a signing traveling unit 240, where the signing traveling unit 240 includes a signing head 241, the signing head 241 is disposed on the signing traveling unit 240, and the ink control unit 230 is connected to the signing head 241; the central processing device 210 is configured to receive the handwriting data and the fingerprint data sent by the sign pen 100 in an encrypted manner, and obtain, according to the fingerprint data and the fingerprint data, ink release ratio information used when the remote signing terminal 200 signs in a signing process; the control device 220 is configured to generate a control instruction according to the ink release ratio information and the handwriting data; the signature walking device 240 is used for driving the signature head 241 to write on the paper surface according to handwriting data of a signature user during signature at the current moment through the signature pen 100; the ink control device 230 is configured to control an ink release ratio of the signature head 241 according to the obtained ink release ratio information, where the ink release ratio information is obtained according to fingerprint data and handwriting data of the signing user during signing with the sign pen 100 at the current time.
In the implementation process, the remote signing terminal 200 includes a central processing device 210, a control device 220, an ink control device 230 and a signing walking device 240, the central processing device 210 can receive fingerprint data and handwriting data sent by the signing pen 100, and acquire ink release ratio information according to the fingerprint data and the handwriting data, then the control device 220 generates a control instruction according to the ink release ratio information and the handwriting data to control the remote signing terminal 200 to perform remote signing, a signing head 241 arranged on the signing walking device 240 can be driven by the signing walking device 240 to write on a paper surface according to the handwriting data of a signing user at the current time through the signing pen 100, in addition, the ink control device 230 is connected with the signing head 241, can control the ink release ratio of the signing head 241 according to the acquired ink release ratio information, thereby implementing the remote signing by the signing head 241 according to the ink release ratio information, thereby realizing the purpose of ensuring the signature safety.
Particularly, the remote signing terminal 200 can include a camera device, after the remote signing terminal 200 performs remote signing, the camera device can acquire a signature picture, the content of the signature picture includes a remote signature and a file position of the remote signature, the signature picture can be sent to a signing user, the signing user can confirm the signature picture, the safety of the remote signature is ensured, after the signing user confirms the signature picture, the remote signing terminal saves the signature picture, data information corresponding to signatures in the signature picture and the like, so that the remote signing terminal can be used in the process of subsequent examinations after the remote signing work is completed.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a signature head 241 according to an embodiment of the present application, where the signature head 241 includes a plurality of ink storage channels 2411 and a plurality of air channel control valves 2412, one end of each ink storage channel 2411 is connected to the corresponding air channel control valve 2412, and the other end of each ink storage channel 2411 is connected to a pen tip 2413 of the signature head 241; the ink control device 230 controls the air passage control valve 2412 to control the ink release ratio through the pen tip 2413.
As an embodiment, the ink in each ink storage channel 2411 may be different kinds of ink, and the ink release ratio of the ink passing through the pen tip 2413 is controlled by the air channel control valve 2412, for example, under the control of the ink control device 230, the first air channel control valve 2412 controls the first ink in the first ink storage channel 2411 to release 6 units of ink, the second air channel control valve 2412 controls the second ink in the second ink storage channel 2411 to release 25 units of ink, and the third air channel control valve 2412 controls the third ink in the third ink storage channel 2411 to release 69 units of ink, so as to finally realize the control of the ink release ratio when the remote signing is performed at the remote signing end, and further realize the purpose of ensuring the security of the signature.
In the implementation process, the signature head 241 comprises a plurality of ink storage channels 2411 and a plurality of air passage control valves 2412, the air passage control valves 2412 can control the amount of ink flowing out of the ink storage channels 2411, so that the air passage control valves 2412 can control the ink release proportion of the pen tip 2413 passing through the signature head 241, and further, the remote signature can be carried out according to the ink release proportion information and the handwriting data, and the purpose of ensuring the signature safety can be achieved.
Optionally, each ink storage channel includes a micro electromagnetic sealer, the micro electromagnetic sealer is disposed at the end of the ink storage channel, and the ink control device changes the state of the micro electromagnetic sealer by controlling the air passage control valve, so as to control the ink release ratio through the pen tip. For example, the micro electromagnetic sealer of the first ink storage channel 2411 is turned on under the control of the air channel control valve 2412, so that the first ink stored in the first ink storage channel 2411 can enter the pen point of the marking head, and the micro electromagnetic sealer of the second ink storage channel 2411 is closed under the control of the air channel control valve 2412, so that the second ink stored in the second ink storage channel 2411 cannot enter the pen point of the marking head.
In the implementation process, each ink storage channel comprises a miniature electromagnetic obturator, and the state of each miniature electromagnetic obturator is controlled by an air passage control valve, so that the ink release proportion of a pen point can be controlled, and then remote signature is implemented according to ink release proportion information and handwriting data, and the purpose of ensuring signature safety is achieved.
Referring to fig. 5, fig. 5 is a block diagram of a remote signing system 300 according to an embodiment of the present application, in which the remote signing system 300 is provided, the remote signing system 300 includes a sign pen 100 and a remote signing terminal 200; the sign pen 100 is connected with the remote sign end 200; the sign pen 100 is configured to acquire fingerprint data and handwriting data of a sign user when the sign user signs a signature through the sign pen at the current time; the sign pen 100 is further configured to obtain, according to the fingerprint data and the handwriting data, ink release ratio information used for signing by the remote signing terminal 200 in a signing process; the sign pen is further configured to send a control instruction to the remote sign end 200, where the control instruction includes ink release ratio information and the handwriting data; the remote signing terminal 200 is configured to receive the control instruction sent by the sign pen 100, and perform remote signing according to the control instruction and the ink release ratio information and the handwriting data.
In the implementation process, the fingerprint data and the handwriting data of the signing user are acquired by the signing pen 100 at the current moment when signing is carried out by the signing pen 100, then the ink release proportion acquisition module 120 in the signing pen 100 processes the fingerprint data and the handwriting data to obtain the ink release proportion information, then the signing pen 100 can send a control instruction comprising the ink release proportion information and the handwriting data to the remote signing end 200, finally the remote signing end 200 receives the control instruction sent by the signing pen 100 and carries out remote signing according to the ink release proportion information and the handwriting data according to the control instruction, in the scheme, the signing user can carry out remote signing, so that the document signing is more convenient, and the ink release proportion information is acquired according to the fingerprint data and the handwriting data of the signing user at the current moment when signing by the signing pen 100, therefore, other personnel cannot steal and copy the handwriting data, and the purpose of ensuring the signature safety is achieved.
The embodiment of the application provides a remote signing device, which is applied to a remote signing terminal 200, and the device comprises the following modules:
the central processing module is used for receiving handwriting data and fingerprint data sent by the sign pen in an encrypted mode, wherein the handwriting data and the fingerprint data are obtained by the sign pen when a signing user signs at the current moment through the sign pen.
The central processing module is also used for obtaining ink release proportion information used for the remote signing end to sign in the signing process according to the fingerprint data and the handwriting data.
And the control module is used for generating a control instruction according to the ink release ratio information and the handwriting data so as to enable the remote signing terminal to remotely sign according to the control instruction and the ink release ratio information and the handwriting data.
Optionally, the central processing module comprises the following units:
and the dividing unit is used for dividing the fingerprint data into N fingerprint data segments and dividing the handwriting data into N handwriting data segments.
Wherein N is a positive integer greater than or equal to 2.
And the data fusion unit is used for taking i as 1 to N, performing data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain an ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and when i is equal to N, obtaining N fusion data segments.
And the fused data acquisition unit is used for acquiring fused data according to the N fused data fragments, and the fused data comprises ink release proportion information used for signing by the remote signing end in the signing process.
In the implementation process, firstly, fingerprint data is divided into N fingerprint data segments in a dividing unit, handwriting data is divided into N handwriting data segments, then, the data fusion unit performs data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain the ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and then the fusion data acquisition unit obtains fusion data obtained by the N fusion data segments through data fusion processing, so that remote signature is implemented according to the ink release proportion information and the handwriting data, and the safety of the remote signature is ensured.
Optionally, the data dividing unit includes:
and the time sequence acquisition unit is used for acquiring a time sequence N when the signing user signs a signature through the signing pen at the current moment.
And the time sequence dividing unit is used for dividing the fingerprint data into N fingerprint data segments according to the time sequence N and dividing the handwriting data into N handwriting data segments.
In the implementation process, firstly, the time sequence obtaining unit obtains the time sequence N when the signing user signs by the signing pen at the current moment, then the handwriting data and the fingerprint data are divided according to the time sequence N in a time sequence dividing unit, the fingerprint data is divided into N fingerprint data segments, the handwriting data is divided into N handwriting data segments, the separation processing of the handwriting data and the fingerprint data is carried out according to the time sequence, the corresponding time relation between the N fingerprint data segments and the N handwriting data segments can be ensured, so that each fingerprint data segment and the handwriting data segment corresponding to the fingerprint data segment can be fused to obtain a fused data segment, therefore, each fusion data segment contains the ink release ratio information corresponding to the handwriting data segment related to the fusion data segment, and remote signature is carried out according to the ink release ratio information and the handwriting data.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method, and will not be described in too much detail herein.
To sum up, the embodiment of the application provides a remote signing method, a remote signing terminal and a remote signing system, the signing pen acquires fingerprint data and handwriting data of a signing user when signing by using the signing pen at the current moment, then the fingerprint data and the handwriting data are sent to the remote signing terminal in an encrypted manner, the remote signing terminal processes the fingerprint data and the handwriting data to obtain ink release ratio information, the ink release ratio information is used for the remote signing terminal to sign in the signing process, the remote signing terminal can generate a control instruction carrying the ink release ratio information and the handwriting data and is used for controlling the remote signing terminal to remotely sign according to the ink release ratio information and the handwriting data, the signing user can carry out remote signing in the scheme, and the file signing is more convenient and faster, and the ink release ratio information is obtained according to the fingerprint data and the handwriting data of the signing user when signing by using the signing pen at the current moment Therefore, other personnel cannot steal and imitate the handwriting data, and the purpose of ensuring the signature safety is achieved.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A remote signing method is applied to a remote signing end, and the method comprises the following steps:
receiving handwriting data and fingerprint data sent by a sign pen in an encrypted manner, wherein the handwriting data and the fingerprint data are obtained by the sign pen when a sign user signs at the current moment through the sign pen;
acquiring ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data;
generating a control instruction according to the ink release ratio information and the handwriting data so that the remote signing end carries out remote signing according to the control instruction and the ink release ratio information and the handwriting data;
the signature head is driven to write on the paper surface according to handwriting data of a signature user during signature at the current moment through a signature pen;
and controlling the ink release proportion of the signature head according to the obtained ink release proportion information, wherein the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signature user during signature through the signature pen at the current moment.
2. The method as claimed in claim 1, wherein the obtaining of ink release ratio information for the remote signing end during signing in the signing process according to the fingerprint data and the handwriting data comprises:
dividing the fingerprint data into N fingerprint data segments, and dividing the handwriting data into N handwriting data segments, wherein N is a positive integer greater than or equal to 2;
taking i as 1 to N, performing data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain an ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and when i = N, obtaining N fusion data segments in total;
and obtaining fusion data according to the N fusion data fragments, wherein the fusion data comprises ink release ratio information used for signing by the remote signing end in the signing process.
3. A method as claimed in claim 2, wherein the dividing the fingerprint data into N fingerprint data segments and the dividing the handwriting data into N handwriting data segments comprises:
acquiring a time sequence N of the signing user when signing through the signing pen at the current moment;
and dividing the fingerprint data into N fingerprint data segments according to the time sequence N, and dividing the handwriting data into N handwriting data segments.
4. A remote signing method, the method comprising:
the method comprises the steps that a sign pen obtains fingerprint data and handwriting data of a sign user when the sign user signs at the current moment through the sign pen;
the sign pen sends the handwriting data and the fingerprint data to a remote sign end in an encrypted manner;
the remote signing end receives the handwriting data and the fingerprint data which are sent by the signing pen in an encrypted mode;
the remote signing terminal obtains ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data;
the remote signing terminal generates a control instruction according to the ink release proportion information and the handwriting data so as to enable the remote signing terminal to remotely sign according to the control instruction and the ink release proportion information and the handwriting data;
the remote signing end drives the signing head to write on the paper surface according to handwriting data of a signing user during signing through a signing pen at the current moment;
and the remote signing end controls the ink release proportion of the signing head according to the obtained ink release proportion information, wherein the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signing user during signing through the signing pen at the current moment.
5. A remote signing authority, said remote signing authority comprising: the printing ink control device is connected with the signature head;
the central processing device is used for receiving handwriting data and fingerprint data sent by the sign pen in an encrypted manner and obtaining ink release proportion information used for the remote signing end in signing in the signing process according to the fingerprint data and the handwriting data;
the control device is used for generating a control instruction according to the ink release proportion information and the handwriting data;
the signature walking device is used for driving the signature head to write on the paper surface according to handwriting data of a signature user during signature at the current moment through a signature pen;
the ink control device is used for controlling the ink release proportion of the signature head according to the obtained ink release proportion information, and the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signature user during signature through the signature pen at the current moment.
6. The remote signing terminal of claim 5, wherein the signing head includes a plurality of ink storage channels and a plurality of air channel control valves, one end of each ink storage channel being connected to a corresponding air channel control valve, the other end of each ink storage channel being connected to a nib of the signing head;
the ink control device controls the air passage control valve to control the ink release ratio of the pen point.
7. The remote signing terminal of claim 6, wherein each ink storage channel includes a micro electromagnetic seal disposed at an end of the ink storage channel, the ink control device controlling the air passage control valve to change a state of the micro electromagnetic seal to control a rate of ink release through the tip.
8. The remote signing system is characterized by comprising a signing pen and a remote signing terminal; the sign pen is connected with the remote sign end;
the sign pen is used for acquiring fingerprint data and handwriting data of a sign user when the sign user signs at the current moment through the sign pen;
the sign pen is further used for sending the handwriting data and the fingerprint data to the remote sign end in an encrypted mode;
the remote signing terminal is used for receiving handwriting data and fingerprint data sent by the signing pen in an encrypted manner;
the remote signing terminal is also used for obtaining ink release proportion information used for the remote signing terminal to sign in the signing process according to the fingerprint data and the handwriting data;
the remote signing terminal is further used for generating a control instruction according to the ink release ratio information and the handwriting data so that the remote signing terminal can carry out remote signing according to the control instruction and the ink release ratio information and the handwriting data;
the remote signing end is used for driving the signing head to write on the paper surface according to handwriting data of a signing user during signing through the signing pen at the current moment;
the remote signing terminal is used for controlling the ink release proportion of the signing head according to the obtained ink release proportion information, and the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signing user during signing through the signing pen at the current moment.
9. A remote signing device for use at a remote signing end, the device comprising:
the central processing module is used for receiving handwriting data and fingerprint data sent by the sign pen in an encrypted manner, wherein the handwriting data and the fingerprint data are obtained by the sign pen when a sign user signs at the current moment through the sign pen;
the central processing module is further used for obtaining ink release proportion information used for the remote signing end to sign in the signing process according to the fingerprint data and the handwriting data;
the control module is used for generating a control instruction according to the ink release ratio information and the handwriting data so that the remote signing terminal carries out remote signing according to the control instruction and the ink release ratio information and the handwriting data;
the signature walking device is used for driving the signature head to write on the paper surface according to handwriting data of a signature user during signature at the current moment through the signature pen;
and the ink control device is used for controlling the ink release proportion of the signature head according to the obtained ink release proportion information, and the ink release proportion information is obtained according to the fingerprint data and the handwriting data of the signature user during signature through the signature pen at the current moment.
10. The apparatus of claim 9, wherein the central processing module comprises:
the dividing unit is used for dividing the fingerprint data into N fingerprint data segments and dividing the handwriting data into N handwriting data segments, wherein N is a positive integer greater than or equal to 2;
the data fusion unit is used for taking i as 1 to N, performing data fusion processing on the ith fingerprint data segment and the ith handwriting data segment to obtain an ith fusion data segment, wherein the ith fusion data segment contains ink release proportion information corresponding to the ith handwriting data segment, and when i = N, obtaining N fusion data segments in total;
and the fused data acquisition unit is used for acquiring fused data according to the N fused data fragments, and the fused data comprises ink release proportion information used for signing by the remote signing end in the signing process.
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| CN112464694A (en) * | 2019-09-09 | 2021-03-09 | 宁波意尔达五金工贸有限公司 | Electronic signature method, device and system for handwritten fonts |
| CN110868427A (en) * | 2019-12-02 | 2020-03-06 | 浙江理工大学 | Remote voice recognition automatic signing device and recognition method thereof |
| CN111746178B (en) * | 2020-06-23 | 2021-05-25 | 湖南省骏北科技有限公司 | Handwriting recognition digital pen |
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