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US 2022/0067341 A1Published application
Writing pen, signature recognition method and signature recognition system
AssigneeWaltop International Corporation
InventorMin-Chih HSUAN
Life of this patent
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Abstract
A writing pen, a signature recognition method, and a signature recognition system are provided. A non-writing end of the writing pen is equipped with a motion sensing device. The writing pen records a motion trajectory of the non-writing end when the writing pen writes on a plane writing trajectory generating device. When the motion trajectory and/or a plane writing trajectory pass a comparison, a signature comparison device determines that a signature is from a specific person.
Claims13
A writing pen, comprising:
- a pen body including a writing end and a motion sensing end, the writing end and the motion sensing end being separated by a handheld reference point;
- an inducer disposed at the writing end for generating a writing trajectory on a sensing surface;
- and
- an air signature generator disposed at the motion sensing end, the air signature generator including:
- a motion sensing device configured to sense a three-dimensional motion of the motion sensing end and continually output at least one one-dimensional reading value of the three-dimensional motion at predetermined time intervals;
- a first communication device configured to establish a communication channel with an external device in a wireless or a wired manner;
- a control device connected to the motion sensing device and the first communication device, so as to receive a sensing result data of the motion sensing device, and to process and transmit the sensing result data to the external device through the first communication device;
- and
- a power supply connected to the motion sensing device, the first communication device, and the control device, so as to provide power to the motion sensing device, the first communication device, and the control device;
- wherein the control device is configured to:
- record a current time as a first time after receiving a start detection command and capture a reading value of the motion sensing device, and record another current time as a second time after receiving a stop detection command to generate an air signature file containing the first time, the reading value of the motion sensing device, and the second time, so as to activate the first communication device to transmit the air signature file to the external device;
- wherein the control device includes an air trajectory description device that is configured to generate a corresponding air trajectory description data according to the reading value of the motion sensing device, and to describe a motion trajectory of the motion sensing end between the first time and the second time;
- wherein the motion trajectory is a one-dimensional motion trajectory, a two-dimensional motion trajectory or a three-dimensional motion trajectory, and the air signature file transmitted by the control device to the external device through the first communication device includes the air trajectory description data.
10 more elements
A signature recognition method, comprising steps of:
- activating a writing pen, the writing pen including:
- a pen body including a writing end and a motion sensing end, the writing end and the motion sensing end being separated by an angle of at least 90 degrees;
- an inducer disposed at the writing end;
- and
- an air signature generator disposed at the motion sensing end, the air signature generator including:
- a motion sensing device for sensing a three-dimensional motion of the motion sensing end and continually outputting at least one one-dimensional reading value of the three-dimensional motion at predetermined time intervals;
- a first communication device for establishing a communication channel with an external device in a wireless or a wired manner;
- and
- a control device for recording a first time of a starting operation and capturing a reading value of the motion sensing device, and for recording a second time of a stopping operation, so as to generate an air signature file containing the first time, the reading value of the motion sensing device, and the second time;
- recording the air signature file;
- performing a feature comparison between the air signature file and one of a plurality of reference air signature files in a signature data storage device storing a plurality of reference signature files;
- determining, via a signature comparison device, that the air signature file and the reference air signature file are from a same provider in response to an approximate value of a feature comparison result being higher than a specific critical value, and a difference value between the first and second times and a comparison time being less than a specific value;
- otherwise, determining that the air signature file and the reference air signature file are not from the same provider;
- and
- outputting a determination result.
12 more elements
A signature recognition method, comprising steps of:
- activating a writing pen to receive an air signature file sent by the writing pen, wherein the writing pen includes:
- a pen body including a writing end and a motion sensing end, the writing end and the motion sensing end being separated by an angle of at least 90 degrees;
- an inducer disposed at the writing end;
- and
- an air signature generator disposed at the motion sensing end, the air signature generator including:
- a motion sensing device for sensing a three-dimensional motion of the motion sensing end and continually outputting at least one one-dimensional reading value of the three-dimensional motion at predetermined time intervals;
- a first communication device for establishing a communication channel with an external device in a wireless or a wired manner;
- and
- a control device for recording a first time of a starting operation and capturing a reading value of the motion sensing device, and for recording a second time of a stopping operation, so as to generate the air signature file containing the first time, the reading value of the motion sensing device, and the second time;
- activating a writing trajectory generating device to capture a motion trajectory of the writing pen, so as to generate a plane signature file describing the motion trajectory;
- wherein the plane signature file includes a start time data and an end time data of the motion trajectory;
- performing a feature comparison between the air signature file received from the writing pen and at least one reference air signature file in a signature data storage device, and performing a feature comparison between the plane signature file received from the writing trajectory generating device and at least one reference plane signature file in the signature data storage device;
- determining, via a signature comparison device, that the air signature file and the at least one reference air signature file are from a same provider in response to an approximate value of a feature comparison result between the air signature file and the at least one reference air signature file being higher than a first critical value, and an approximate value of a feature comparison result between the plane signature file and the at least one reference plane signature file being higher than a second critical value;
- and
- outputting a determination result.
12 more elements
Dependencies are inferred from the claim text.