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公开(公告)号：US4308522A
公开(公告)日：1981-12-29
申请号：US21851
申请日：1979-03-19
CPC分类号： G07C9/0015 , G06K9/00167 , G06K9/522
摘要： A method and apparatus are provided for verifying the identity of a person by establishing and storing a standard vector for said person based upon predetermined characteristics derived from a number of handwriting samples, and then comparing said standard with a vector derived from a corresponding sample of handwriting provided by said person at the time the identity of said person is to be verified. Derivation of the vector is accomplished by digitizing an analog waveform representing forces generated by writing, compressing the digitized information, extracting Haar coefficients and directly observable features from the compressed digital information, and deriving a vector from said Haar coefficients and said directly observable features.
摘要翻译： 提供了一种方法和装置，用于通过基于从多个手写样本导出的预定特征建立并存储针对所述人的标准向量来验证人的身份，然后将所述标准与从对应的笔迹样本导出的向量进行比较 所述人员在所述人的身份被验证时提供。 通过数字化表示由写入产生的力，压缩数字化信息，从压缩数字信息中提取Haar系数和直接观察到的特征以及从所述Haar系数和所述直接可观察特征导出矢量的模拟波形来实现矢量的推导。
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公开(公告)号：US3947854A
公开(公告)日：1976-03-30
申请号：US506067
申请日：1974-09-16
摘要： The thermal printer system is comprised of a means for generating heated air and a means for controlling the application of the heated air to a thermally sensitive recording medium. In an embodyment of the invention there is provided a means for ionizing a column of gas and a means for attracting or repelling the ionized column of gas along a desired path in response to a control signal. Interposed along the desired path is a means for heating the gas and a thermally sensitive recording medium positioned to intercept the column of heated gas such that a record is made on the recording medium which record is a function of the control signal.
摘要翻译： 热敏打印机系统由用于产生加热空气的装置和用于控制加热的空气施加到热敏记录介质的装置组成。 在本发明的一个实施例中，提供了一种用于电离气柱的装置和用于响应于控制信号沿期望的路径吸引或排斥气体的离子化的气体的装置。 沿期望的路径插入的是用于加热气体的装置和热敏记录介质，其定位成拦截加热气体柱，使得记录在记录介质上，该记录是控制信号的函数。
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公开(公告)号：US4453267A
公开(公告)日：1984-06-05
申请号：US271713
申请日：1981-06-08
CPC分类号： G07C9/0015 , G06K9/52
摘要： A method and apparatus are provided for digitizing an analog waveform and compressing the digitized information.
摘要翻译： 提供一种用于数字化模拟波形并压缩数字化信息的方法和装置。
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公开(公告)号：US4254469A
公开(公告)日：1981-03-03
申请号：US16677
申请日：1979-03-01
申请人： Robert M. Whitely
发明人： Robert M. Whitely
CPC分类号： G01R17/06 , G01D3/032 , G01R17/02 , G07C9/0015
摘要： A method and apparatus for correction of null or zero reference offset error occurring in a measuring or transducing device by reason of temperature change, component ageing or other effects. A system including an appropriately programmed microcomputer, an analog-to-digital converter, a digital-to-analog converter and an operational amplifier provides a closed feedback correction loop, controlled by the microcomputer, which can maintain the zero adjustment of an analog transducer and amplifier circuitry over an indefinite period of time.
摘要翻译： 一种用于校正由于温度变化，组件老化或其他影响而在测量或换能装置中发生的零或零参考偏移误差的方法和装置。 包括适当编程的微型计算机，模数转换器，数模转换器和运算放大器的系统提供由微计算机控制的闭合反馈校正回路，其可以保持模拟换能器的零点调整， 放大器电路在无限期内。
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