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1. 发明授权

US07210627B2 Method and apparatus for authenticating a magnetic fingerprint signal using an adaptive analog to digital converter 有权
标题翻译：使用自适应模数转换器认证磁指纹信号的方法和装置
公开(公告)号：US07210627B2
公开(公告)日：2007-05-01
申请号：US11014931
申请日：2004-12-17
申请人： Robert E. Morley, Jr. , Edward J. Richter , George L. Engel
发明人： Robert E. Morley, Jr. , Edward J. Richter , George L. Engel
IPC分类号： G06K7/08
CPC分类号： G06K7/084 , G06Q20/347 , G07D7/04 , G07F7/08 , G07F7/0813 , G07F7/12
摘要： A system for verifying the authenticity of data contained in a magnetic medium using the remanent noise characteristics of the magnetic medium. One embodiment of the invention includes an over-sampled modulator and at least one channel in communication with an output of the over-sampled modulator. The at least one channel is configured to filter the output of the over-sampled modulator and the at least one channel is configured to vary the bandwidth of the filter applied to the output of the over-sampled modulator in response to variations in the bandwidth of the signal generated by the sensing unit.
摘要翻译：一种用于使用磁介质的剩余噪声特性来验证包含在磁介质中的数据的真实性的系统。本发明的一个实施例包括过采样调制器和与过采样调制器的输出通信的至少一个信道。所述至少一个通道被配置为对过采样调制器的输出进行滤波，并且所述至少一个通道被配置为响应于过采样调制器的输出的变化而改变施加到过采样调制器的输出的滤波器的带宽由感测单元产生的信号。

2. 发明授权

US07377433B2 Method and apparatus for authenticating a magnetic fingerprint signal using compressive amplification 有权
标题翻译：使用压缩放大验证磁指纹信号的方法和装置
公开(公告)号：US07377433B2
公开(公告)日：2008-05-27
申请号：US11015271
申请日：2004-12-17
申请人： Robert E. Morley, Jr. , Edward J. Richter , George L. Engel
发明人： Robert E. Morley, Jr. , Edward J. Richter , George L. Engel
IPC分类号： G06K7/08
CPC分类号： G06K7/084 , G06Q20/347 , G07D7/04 , G07F7/08 , G07F7/0813 , G07F7/12
摘要： A system for verifying the authenticity of data contained in a magnetic medium using the remanent noise characteristics of the magnetic medium. In one embodiment, the invention includes a sensing unit configured to generate a signal indicative of the sensed magnetic field and an amplifier. The amplifier is in communication with the sensing unit, is configured to amplify signals having amplitudes less than a threshold by at least a first factor and configured to amplify signals having amplitudes greater than the threshold by at most a second factor. The first factor is greater than the second factor. The invention also includes an analog-to-digital converter (ADC) in communication with the amplifier and configured to digitize the analog signal, a filter in communication with the ADC configured to attenuate the portion of the digitized signal indicative of the stored data, a data extraction unit in communication with the ADC and the filter, which is configured to measure bit duration and peak location and an authentication extraction unit in communication with the filter and the data extraction unit, which is configured to extract a set of scaled samples representative of the remanent noise characteristic.
摘要翻译：一种用于使用磁介质的剩余噪声特性来验证包含在磁介质中的数据的真实性的系统。在一个实施例中，本发明包括被配置为产生指示感测到的磁场的信号的感测单元和放大器。放大器与感测单元通信，被配置为将具有小于阈值的幅度的信号放大至少第一因素，并且被配置为将幅度大于阈值的信号放大至多第二因素。第一个因素大于第二个因素。本发明还包括与放大器通信并被配置为数字化模拟信号的模数转换器（ADC），与ADC通信的滤波器被配置为衰减指示存储的数据的数字化信号的部分，与ADC和滤波器通信的数据提取单元，其被配置为测量比特持续时间和峰值位置，以及与过滤器和数据提取单元通信的认证提取单元，其被配置为提取表示残留噪音特性。

3. 发明授权

US5357251A Electronic filters, signal conversion apparatus, hearing aids and methods 失效
标题翻译：电子滤波器，信号转换装置，助听器和方法
公开(公告)号：US5357251A
公开(公告)日：1994-10-18
申请号：US56054
申请日：1993-04-30
申请人： Robert E. Morley, Jr. , A. Maynard Engebretson , George L. Engel , Thomas J. Sullivan
发明人： Robert E. Morley, Jr. , A. Maynard Engebretson , George L. Engel , Thomas J. Sullivan
IPC分类号： H03H17/02 , H03H21/00 , H04R3/04 , H04R25/00 , H03M1/12
CPC分类号： H03H17/0261 , H03H21/0012 , H04R25/453 , H04R3/04 , H03H2021/007 , H03H2021/0074 , H04R25/505
摘要： An electronic filter for filtering an electrical signal. Signal processing circuitry therein includes a logarithmic filter having a series of filter stages with inputs and outputs in cascade and respective circuits associated with the filter stages for storing electrical representations of filter parameters. The filter stages include circuits for respectively adding the electrical representations of the filter parameters to the electrical signal to be filtered thereby producing a set of filter sum signals. At least one of the filter stages includes circuitry for producing a filter signal in substantially logarithmic form at its output by combining a filter sum signal for that filter stage with a signal from an output of another filter stage. The signal processing circuitry produces an intermediate output signal, and a multiplexer connected to the signal processing circuit multiplexes the intermediate output signal with the electrical signal to be filtered so that the logarithmic filter operates as both a logarithmic prefilter and a logarithmic postfilter. Other electronic filters, signal conversion apparatus, electroacoustic systems, hearing aids and methods are also disclosed.
摘要翻译：一种滤波电信号的电子滤波器。其中的信号处理电路包括对数滤波器，该对数滤波器具有级联的输入和输出的一系列滤波器级，以及与滤波器级相关联的各个电路，用于存储滤波器参数的电表示。滤波器级包括用于分别将滤波器参数的电表示加到要滤波的电信号的电路，从而产生一组滤波器和信号。滤波器级中的至少一个包括用于通过将用于该滤波器级的滤波器和信号与来自另一个滤波器级的输出的信号组合来在其输出处以基本对数形式产生滤波器信号的电路。信号处理电路产生中间输出信号，并且连接到信号处理电路的多路复用器将中间输出信号与要滤波的电信号进行复用，使得对数滤波器作为对数前置滤波器和对数后置滤波器。还公开了其它电子滤波器，信号转换装置，电声系统，助听器和方法。

4. 发明授权

US5225836A Electronic filters, repeated signal charge conversion apparatus, hearing aids and methods 失效
标题翻译：电子滤波器，重复信号电荷转换装置，助听器和方法
公开(公告)号：US5225836A
公开(公告)日：1993-07-06
申请号：US792706
申请日：1991-11-15
申请人： Robert E. Morley, Jr. , A. Maynard Engebretson , George L. Engel , Thomas J. Sullivan
发明人： Robert E. Morley, Jr. , A. Maynard Engebretson , George L. Engel , Thomas J. Sullivan
IPC分类号： H03H17/02 , H03H21/00 , H04R3/04 , H04R25/00
CPC分类号： H04R25/453 , H03H17/0261 , H03H21/0012 , H04R3/04 , H03H2021/007 , H03H2021/0074 , H04R25/505
摘要： An electronic filter for filtering an electrical signal. Signal processing circuitry therein includes a logarithmic filter having a series of filter stages with inputs and outputs in cascade and respective circuits associated with the filter stages for storing electrical representations of filter parameters. The filter stages include circuits for respectively adding the electrical representations of the filter parameters to the electrical signal to be filtered thereby producing a set of filter sum signals. At least one of the filter stages includes circuitry for producing a filter signal in substantially logarithmic form at its output by combining a filter sum signal for that filter stage with a signal from an output of another filter stage. The signal processing circuitry produces an intermediate output signal, and a multiplexer connected to the signal processing circuit multiplexes the intermediate output signal with the electrical signal to be filtered so that the logarithmic filter operates as both a logarithmic prefilter and a logarithmic postfilter. Other electronic filters, signal conversion apparatus, electroacoustic systems, hearing aids and methods are also disclosed.
摘要翻译：一种滤波电信号的电子滤波器。其中的信号处理电路包括对数滤波器，该对数滤波器具有级联的输入和输出的一系列滤波器级，以及与滤波器级相关联的各个电路，用于存储滤波器参数的电表示。滤波器级包括用于分别将滤波器参数的电表示加到要滤波的电信号的电路，从而产生一组滤波器和信号。滤波器级中的至少一个包括用于通过将用于该滤波器级的滤波器和信号与来自另一个滤波器级的输出的信号组合来在其输出处以基本对数形式产生滤波器信号的电路。信号处理电路产生中间输出信号，并且连接到信号处理电路的多路复用器将中间输出信号与要滤波的电信号进行复用，使得对数滤波器作为对数前置滤波器和对数后置滤波器。还公开了其它电子滤波器，信号转换装置，电声系统，助听器和方法。

5. 发明授权

US5111419A Electronic filters, signal conversion apparatus, hearing aids and methods 失效
标题翻译：电子滤波器，信号转换装置，听力艾滋病和方法
公开(公告)号：US5111419A
公开(公告)日：1992-05-05
申请号：US180170
申请日：1988-04-11
申请人： Robert E. Morley, Jr. , A. Maynard Engebretson , George L. Engel , Thomas J. Sullivan
发明人： Robert E. Morley, Jr. , A. Maynard Engebretson , George L. Engel , Thomas J. Sullivan
IPC分类号： H04R25/04 , H03H17/02 , H03H19/00 , H03H21/00 , H03M1/66 , H04R3/04 , H04R25/00 , H04R25/02
CPC分类号： H04R25/453 , H03H17/0261 , H03H21/0012 , H04R3/04 , H03H2021/007 , H03H2021/0074 , H04R25/505
摘要： An electronic filter for filtering an electrical signal. Signal processing circuitry therein includes a logarithmic filter having a series of filter stages with inputs and outputs in cascade and respective circuits asGOVERNMENT SUPPORTThis invention was made with U.S. Government support under Veterans Administration Contract VA KV 674P857 and National Aeronautics and Space Administration (NASA) Research Grant No. NAG10-0040. The U.S. Government has certain rights in this invention.
摘要翻译：一种滤波电信号的电子滤波器。其中的信号处理电路包括对数滤波器，该对数滤波器具有级联的输入和输出的一系列滤波器级，以及与滤波器级相关联的各个电路，用于存储滤波器参数的电表示。滤波器级包括用于分别将滤波器参数的电表示加到要滤波的电信号的电路，从而产生一组滤波器和信号。滤波器级中的至少一个包括用于通过将用于该滤波器级的滤波器和信号与来自另一个滤波器级的输出的信号组合来在其输出处以基本对数形式产生滤波器信号的电路。信号处理电路产生中间输出信号，并且连接到信号处理电路的多路复用器将中间输出信号与要滤波的电信号进行复用，使得对数滤波器作为对数前置滤波器和对数后置滤波器。还公开了其它电子滤波器，信号转换装置，电声系统，助听器和方法。

6. 发明授权

US07243255B2 Design of instantaneously restartable clocks and their use such as in connecting clocked subsystems using clockless sequencing networks 有权
标题翻译：瞬时可重启时钟的设计及其使用，例如使用无时钟排序网络连接时钟子系统
公开(公告)号：US07243255B2
公开(公告)日：2007-07-10
申请号：US11526376
申请日：2006-09-24
申请人： Jerome R. Cox, Jr. , David Michael Zar , George L. Engel
发明人： Jerome R. Cox, Jr. , David Michael Zar , George L. Engel
IPC分类号： G06F1/04 , G06F1/00 , G06F1/12
CPC分类号： G06F1/3203 , G06F1/04 , G06F1/3237 , G06F1/3287 , Y02D10/128 , Y02D10/171
摘要： Disclosed are, inter alia, instantaneously restartable clocks and their use. For example, instantaneously restartable clocks can be used to receive data from another independently clocked subsystem in a manner that removes the possibility of metastability errors. A restartable clocking signal generator, relying on oscillating signals typically generated by a continuous oscillating source, is used to generate a restartable clocking signal which can be asynchronously restarted in response to one or more control signals. In one implementation, an apparatus includes multiple independently clocked subsystems and a clockless sequencing network, with the clockless sequencing network being used to initiate the start of a restartable clock in order to reliably receive and process data between the independently clocked subsystems.
摘要翻译：除其他外，公开了即时可重启时钟及其使用。例如，瞬时可重新启动的时钟可以用于以消除亚稳态误差的可能性的方式从另一个独立计时的子系统接收数据。可重新启动的时钟信号发生器，依赖于通常由连续振荡源产生的振荡信号，用于产生可重新启动的时钟信号，其可以响应于一个或多个控制信号异步地重启。在一个实施方式中，一种装置包括多个独立计时子系统和无时钟排序网络，其中无时钟排序网络用于启动可重启时钟的启动，以便可靠地接收和处理独立计时的子系统之间的数据。

7. 发明授权

US5428683A Method and apparatus for fingerprinting and authenticating magnetic media 失效
标题翻译：用于指纹识别磁性介质的方法和装置
公开(公告)号：US5428683A
公开(公告)日：1995-06-27
申请号：US222693
申请日：1994-04-04
申请人： Ronald S. Indeck , Marcel W. Muller , George L. Engel , Alan L. Hege
发明人： Ronald S. Indeck , Marcel W. Muller , George L. Engel , Alan L. Hege
IPC分类号： G06K19/10 , G06F1/00 , G06F21/10 , G06F21/79 , G06K1/12 , G06K7/015 , G06K17/00 , G06K19/12 , G07D7/04 , G07F7/08 , G07F7/12 , G11B5/09 , G11B5/596 , G11B20/00 , G11B21/10 , G11B23/28 , H04L1/00
CPC分类号： G11B23/284 , G06F21/10 , G06F21/79 , G06K1/125 , G06K19/086 , G06K19/12 , G06K7/015 , G06Q20/347 , G07D7/04 , G07F7/08 , G07F7/0813 , G07F7/086 , G07F7/125 , G11B20/00086 , G11B20/00094 , G11B20/00123 , G11B21/106 , G11B5/59611 , G11B5/59633 , G06F2211/007 , G06F2221/0737 , G06F2221/0744
摘要： A method and apparatus is disclosed for determining the remanent noise in a magnetic medium by DC saturation of a region thereof and measurement of the remaining DC magnetization. A conventional magnetic recording transducer may be used to determine the remanent noise. Upon determination, the remanent noise may then be digitized and recorded on the same magnetic medium to thereby "fingerprint" the magnetic medium. This "fingerprint" may then be later used to verify and authenticate the magnetic medium as being an original. In such manner, any magnetic medium, or any object having an associated magnetic medium, may be "fingerprinted" including credit cards, computer programs, compact discs, videotapes, cassette tapes, etc.
摘要翻译：公开了一种用于通过其区域的直流饱和来确定磁性介质中的剩余噪声和剩余DC磁化的测量的方法和装置。可以使用传统的磁记录传感器来确定剩余噪声。一旦确定，可以将剩余噪声数字化并记录在相同的磁介质上，从而“指纹”磁介质。然后可以将该“指纹”随后用于验证和认证磁介质为原件。以这种方式，任何磁介质或具有相关磁介质的物体可以是“指纹”的，包括信用卡，计算机程序，光盘，录像带，盒式磁带等。

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