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Data character string authorizing method

A technology for character strings and character strings, applied in digital transmission systems, electrical digital data processing, digital computer components, etc., can solve problems such as user confirmation delays

Inactive Publication Date: 2006-01-11
LIFESCAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the time required for string comparison depends on the string length, can be quite long, and will cause excessive delay on user confirmation

Method used

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  • Data character string authorizing method
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Embodiment Construction

[0023] Before the inventive subject matter is further described, it should be readily understood that the invention is not limited to the particular embodiments described below, but that various changes may be made in the particular embodiments and remain within the scope of the following claims. Furthermore, it is also to be understood that the terminology employed is for the purpose of describing particular embodiments and is not limiting. Rather, the scope of the invention will be established by the following claims.

[0024]Any definitions provided herein are for the purpose of clarity and should not be considered limiting. The technical and scientific terms used herein have the same meaning and are commonly used by those of ordinary skill in the field of the invention.

[0025] The terms "alphanumeric character" and "alphanumeric symbol" and grammatical equivalents thereof mean herein any number, alphabetic script, monosyllabic symbol, polysyllabic symbol, textual symbol...

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Abstract

Apparatus and methods for authorization or authentication of data strings. The apparatus comprise a memory containing a stored list of cyclic redundancy check values each corresponding to a data string representing an authorized identifier; and stored programming configured to compare a cyclic redundancy check value for a data string subject to authorization to the stored list of cyclic redundancy check values and determine validity of the cyclic redundancy check value for the data string subject to authorization. The data strings representing the authorized identifiers may comprise data representing alphanumeric character strings indicative of authorized users, and the data string subject to authorization may comprise a user-entered identification string of alphanumeric characters. The methods comprise creating a list of cyclic redundancy check values each corresponding to a data string representing an authorized identifier, comparing a cyclic redundancy check value for a data string subject to authorization to the list of cyclic redundancy check values, and determining if the cyclic redundancy check value for the data string subject to authorization is authorized.

Description

technical field [0001] The invention relates to a device, method and system for authorizing or authenticating data strings. Background technique [0002] Hand-held data processing devices with data entry and display capabilities are increasingly being used in a variety of applications, well-known examples of which include cellular telephones and "Personal Digital Assistant" (PDA) devices. With greater processing power and smaller size making the device easier to use, such hand-held data processing devices will become more widely used in medicine, health care, finance, engineering and other fields. Efficiency in data entry by a user and rapid processing and display of such data are important considerations for handheld data processing devices. However, the data entry and display provided by currently available handheld data processors suffer from various deficiencies. Background technique [0003] In particular, the small size of such handheld devices tends to complicate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/32H04M1/23H03M13/03H04L9/00G06F15/02G06F1/00G06F21/83H04L9/32
CPCG06F21/83
Inventor D·霍尔I·特雷菲尔K·哈蒙N·鲍蒂斯塔S·特尔森
Owner LIFESCAN INC