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Method for exchanging control via a usb stick and associated devices allowing implementation thereof

A technology of equipment unit and real-time system, applied in data transformation, secure communication device, character and pattern recognition, etc., can solve the problems of slow computer, unacceptable, lack of signature, etc., and achieve the effect of eliminating data loss

Active Publication Date: 2020-08-07
HERMES COMM S R L S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a slowdown (even temporary) of the USB-HID connection produces "stutters" or "gaps" in the capture, the effect is distortion of the captured signature, lack of some segments and final signature unacceptable as proof of handwriting
[0013] Another problem arises when HID communication is used to transfer an image from a computer to a signature tablet: if the data needs to be divided into many small packets, the transfer is rather slow even if the computer is not virtualized

Method used

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  • Method for exchanging control via a usb stick and associated devices allowing implementation thereof
  • Method for exchanging control via a usb stick and associated devices allowing implementation thereof
  • Method for exchanging control via a usb stick and associated devices allowing implementation thereof

Examples

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Embodiment Construction

[0036] figure 1 The operation of the solution of fully acquiring the signature is shown (which is not employed): during the signature step (I), the digitizing tablet 21 takes the signature data (position, velocity, pressure, time) as they are progressively acquired On the other hand, it is recorded on the disk 22 in the form of a file 23 . The signing step ends when the signer enters confirmation using a special key. At this point, the download step (II) begins, in which the computer 24 reads the file 23 from the disk 22;

[0037] Instead, use this article on figure 2 The described method, the digitizing tablet 21 transfers the signature to a FIFO (first in first out) type queue 25 in the disc 22; the computer 24 gradually reads data from the FIFO 25 as it becomes available, and uses only data from the disc-computer communication to display them on the screen without a delay equivalent to the entire duration of the signature.

[0038] A circular type of FIFO queue 25 is o...

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Abstract

A real-time system for bi-directional storage and transfer of control and data between a processor and an external serial peripheral device such as a tablet and / or digitizer for handwritten signatures during I / O using an external medium Used to store static data to form a transfer buffer capable of operating with said Serial Peripheral Unit which is considered a "USB drive" removable virtual disk. Only files constituted as a linear sequence of data in sectors of constant size, which can be shared between the serial peripheral unit (21) and the processor (24), are used, the serial Both the peripheral unit (21) and the processor (24) are able to read and write to the file at virtually simultaneous times. Asynchronous I / O transfers are defined with data block contents on the order of kilobytes and storage areas that are actually as large as expected, definitely larger than data packets, used as temporary buffers for data waiting to be transferred.

Description

technical field [0001] The present invention relates generally to the use of digital signatures for the instantaneous identification of individuals with respect to commercial banking transactions, and more particularly to the use of digital signatures designated for use when interworking between hardware peripherals and computers on a local network or intranet or A method to detect interactions between a customer's signature hardware peripheral and a computer even when it occurs from a remote site over the Internet. Background technique [0002] In the field of information technology, there are peripheral devices for computers that utilize interfaces of the HID (Human Interface Device) type. Mice are examples of these devices: they are used to transmit the position of the mouse to the computer with high periodicity in order to allow the user to quickly move the pointer on the screen to interact quickly with the operating system and programs. [0003] The HID interface is us...

Claims

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Application Information

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IPC IPC(8): G06F13/10G06K9/00
CPCG06F13/102G06F2213/0042G06F13/4282G06F5/14H04L9/3247H04L63/061
Inventor 保罗·福拉尼安东尼奥·卡尔博内拉罗伯托·加拉瓦利亚
Owner HERMES COMM S R L S
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