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公开(公告)号：US5053710A
公开(公告)日：1991-10-01
申请号：US494602
申请日：1990-03-16
申请人： Fritz H. Schlereth
发明人： Fritz H. Schlereth
IPC分类号： G01R33/56
CPC分类号： G01R33/56
摘要： This invention relates to the use of a series of Discrete Fourier Transform (DFT) operations to provide multi-dimensional analysis of a molecular specimen.
摘要翻译： 本发明涉及使用一系列离散傅里叶变换（DFT）操作来提供分子样本的多维分析。
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公开(公告)号：US11187680B2
公开(公告)日：2021-11-30
申请号：US16361703
申请日：2019-03-22
申请人： Fritz H. Schlereth , James Spencer
发明人： Fritz H. Schlereth , James Spencer
IPC分类号： G01N29/24 , H01L41/08 , H01L41/18 , H01L41/113 , G01N29/12 , H01L41/193
摘要： Surface modifications and improvements to piezoelectric-based sensors, such as QCMs and other piezoelectric devices, that significantly increase the sensitivity and the specificity (selectivity). These modifications can comprise mechanical and chemical changes to the surfaces of the sensors, either individually or together. For example, nanosize structures may be provided on the surface to improve sensitivity. Additionally, chemical coatings may be tethered to the surfaces, walls, or crystal to provide targeted sensitivity. Additionally, porous, layered and multiple sensor arrays may be formed to enhance sensitivity and selectivity.
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公开(公告)号：US10295504B2
公开(公告)日：2019-05-21
申请号：US15698762
申请日：2017-09-08
申请人： Fritz H. Schlereth , James Spencer
发明人： Fritz H. Schlereth , James Spencer
IPC分类号： G01N29/24 , H01L41/08 , H01L41/18 , H01L41/113 , H01L41/193 , G01N29/12
摘要： Surface modifications and improvements to piezoelectric-based sensors, such as QCMs and other piezoelectric devices, that significantly increase the sensitivity and the specificity (selectivity). These modifications can comprise mechanical and chemical changes to the surfaces of the sensors, either individually or together. For example, nanosize structures may be provided on the surface to improve sensitivity. Additionally, chemical coatings may be tethered to the surfaces, walls, or crystal to provide targeted sensitivity. Additionally, porous, layered and multiple sensor arrays may be formed to enhance sensitivity and selectivity.
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公开(公告)号：US3982112A
公开(公告)日：1976-09-21
申请号：US536009
申请日：1974-12-23
申请人： Fritz H. Schlereth
发明人： Fritz H. Schlereth
CPC分类号： H03H17/04 , G06F7/525 , G06F7/49947
摘要： The invention relates to a recursive numerical processor for data in word serial form in which bias errors are reduced by use of a property of two's complement notation. The input data is introduced in two's complement notation. The processor includes a sub-processor, typically a multiplier, introducing a bias error on the order of the least significant bit. The bias error arises from truncation or rounding necessary to avoid word growth in the processor. In accordance with the invention, the sub-processor is provided with a sign inverter at its input and at its output and the two sign inverters perform a double sign inversion on alternate words. Alternate word sign switching causes the error to alternate between being too large and too small (in magnitude), a property of two's complement notation, thus cancelling a very substantial part of the bias error. The invention has application to a number of recursive numerical processors including recursive digital filters.
摘要翻译： 本发明涉及一种用于字串行形式的数据的递归数字处理器，其中通过使用二进制补码符号的属性来减少偏差误差。 输入数据以二进制补码表示。 处理器包括子处理器，通常是乘法器，引入最低有效位的顺序上的偏置误差。 偏移误差是由于在处理器中避免字长增长所必需的截断或舍入而产生的。 根据本发明，副处理器在其输入端及其输出处设有符号反相器，两个符号反相器对交替字进行双符号反转。 替代字符符号切换导致误差在太大和太小（幅度）之间交替，这是二进制补码符号的特性，从而消除了偏差误差的很大一部分。 本发明适用于包括递归数字滤波器在内的多个递归数字处理器。
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公开(公告)号：US20190219545A1
公开(公告)日：2019-07-18
申请号：US16361703
申请日：2019-03-22
申请人： Fritz H. Schlereth , James Spencer
发明人： Fritz H. Schlereth , James Spencer
IPC分类号： G01N29/24 , H01L41/08 , H01L41/18 , H01L41/113 , G01N29/12 , H01L41/193
CPC分类号： G01N29/2443 , G01N29/12 , G01N2291/012 , G01N2291/014 , G01N2291/0215 , G01N2291/024 , G01N2291/0426 , H01L41/0825 , H01L41/1132 , H01L41/18 , H01L41/183 , H01L41/193
摘要： Surface modifications and improvements to piezoelectric-based sensors, such as QCMs and other piezoelectric devices, that significantly increase the sensitivity and the specificity (selectivity). These modifications can comprise mechanical and chemical changes to the surfaces of the sensors, either individually or together. For example, nanosize structures may be provided on the surface to improve sensitivity. Additionally, chemical coatings may be tethered to the surfaces, walls, or crystal to provide targeted sensitivity. Additionally, porous, layered and multiple sensor arrays may be formed to enhance sensitivity and selectivity.
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公开(公告)号：US4164861A
公开(公告)日：1979-08-21
申请号：US878768
申请日：1978-02-17
CPC分类号： G05D7/0629 , G01N33/0006 , G05D23/1906 , G05D23/24
摘要： A leak standard generator which utilizes the diffusion properties of a gas or vapor to deliver a uniform rate of flow of a leak sample into a diluent gas stream. The generator includes a reservoir containing the leak sample, a discharge head through which is passed a metered flow of diluent gas and a diffusion tube of prescribed dimensions for carrying a gas or vapor of the sample from the reservoir into the diluent gas stream moving through the discharge head. Heating means are provided to maintain the reservoir and the diffusion tube at different temperature levels to promote uniform movement of the sample gas or vapor into the diluent stream.
摘要翻译： 泄漏标准发生器利用气体或蒸汽的扩散特性将泄漏样品的均匀流量传递到稀释气体流中。 发生器包括容纳泄漏样本的储存器，排出头，通过该排放头将计量的稀释气体流和具有规定尺寸的扩散管通过，以将样品的气体或蒸气从储存器运送到穿过 排放头。 提供加热装置以将储存器和扩散管保持在不同的温度水平以促进样品气体或蒸汽均匀地移动到稀释剂流中。
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公开(公告)号：US20180074024A1
公开(公告)日：2018-03-15
申请号：US15698762
申请日：2017-09-08
申请人： Fritz H. Schlereth , James Spencer
发明人： Fritz H. Schlereth , James Spencer
CPC分类号： G01N29/2443 , G01N29/12 , G01N2291/012 , G01N2291/014 , G01N2291/0215 , G01N2291/024 , G01N2291/0426 , H01L41/0825 , H01L41/1132 , H01L41/18 , H01L41/183 , H01L41/193
摘要： Surface modifications and improvements to piezoelectric-based sensors, such as QCMs and other piezoelectric devices, that significantly increase the sensitivity and the specificity (selectivity). These modifications can comprise mechanical and chemical changes to the surfaces of the sensors, either individually or together. For example, nanosize structures may be provided on the surface to improve sensitivity. Additionally, chemical coatings may be tethered to the surfaces, walls, or crystal to provide targeted sensitivity. Additionally, porous, layered and multiple senor arrays may be formed to enhance sensitivity and selectivity.
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公开(公告)号：US5233190A
公开(公告)日：1993-08-03
申请号：US797462
申请日：1991-11-22
摘要： A molecular spectrometer is provided that performs Fourier analysis utilizing the discrete Fourier Transform on a digitized time domain waveform that relates to the composition of a sample. Digitized reference waveforms are employed to permit the instrument to limit its analysis to frequencies of interest and thereby increase the rapidity of the analysis. Data at differing frequencies can be resolved at independent resolutions, and the instrument can analyze spectroscopic data in real time.
摘要翻译： 提供了一种分子光谱仪，其利用与样品组成相关的数字化时域波形上的离散傅里叶变换进行傅立叶分析。 数字化参考波形用于允许仪器将其分析限制到感兴趣的频率，从而增加分析的快速性。 不同频率的数据可以独立分辨率解析，仪器可以实时分析光谱数据。
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公开(公告)号：US4221964A
公开(公告)日：1980-09-09
申请号：US11096
申请日：1979-02-12
CPC分类号： H01J49/4215 , H01J49/022
摘要： An RF control system suitable for use in a mass spectrometer of the type having an ionization chamber, a mass filter and an ion detector. A constant frequency RF voltage is applied to the filter. The magnitude of the RF signal is varied in response to a DC control signal to permit selected ions having a desired charge-to-mass ratio to pass through the filter and strike the detector. In the control system the generated RF signal is attenuated and added to the DC control signal. The resultant voltage is applied to a comparator-integrator circuit that is arranged to provide a control signal capable of precisely holding the output of the RF generator at a predetermined peak voltage.
摘要翻译： 一种适用于具有电离室，质量过滤器和离子检测器的质谱仪的RF控制系统。 将恒定频率RF电压施加到滤波器。 RF信号的大小响应于DC控制信号而变化，以允许具有期望电荷质量比的所选离子通过滤光器并撞击检测器。 在控制系统中，所生成的RF信号被衰减并加到DC控制信号中。 所得到的电压被施加到比较器积分器电路，该比较器积分器电路被布置成提供能够将RF发生器的输出精确地保持在预定峰值电压的控制信号。
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公开(公告)号：US4128890A
公开(公告)日：1978-12-05
申请号：US811194
申请日：1977-06-29
申请人： John M. Irwin , Fritz H. Schlereth
发明人： John M. Irwin , Fritz H. Schlereth
CPC分类号： G06F17/15 , G06F7/525 , G06F7/544 , G06F2207/3816 , G06F7/49947 , G06F7/49994
摘要： The invention relates to an arithmetic unit fabricated by large scale integration techniques and to an improved digital network of increased accuracy in which the unit finds application. The integrated circuit comprises an initial summing means, rounding means, full precision multiplication logic and three successive summing means, all elements being successively connected, and all except the first having both internal and external input terminals. The unit is flexible in respect to the length of the operands and their sign notation. The terminals are readily cascaded, permitting interconnection of the unit with like integrated circuit units and with external delay elements. The invention is applicable in a variety of complex operations including digital filtering, correlation, convolution, polynomial evaluation and squaring. In many of these applications, mixed precision and rounding provide increased accuracy in the resulting digital networks.
摘要翻译： 本发明涉及一种通过大规模集成技术制造的算术单元和一种改进的数字网络，其中单元可以获得应用。 集成电路包括初始求和装置，舍入装置，全精度乘法逻辑和三个连续求和装置，所有元件被连续连接，除了第一个具有内部和外部输入端之外的所有元件。 该单元在操作数的长度和符号符号方面是灵活的。 端子容易级联，允许单元与类似的集成电路单元和外部延迟元件的互连。 本发明适用于数字滤波，相关，卷积，多项式评估和平方的各种复杂操作。 在许多这些应用中，混合精度和舍入在所得数字网络中提供更高的精度。
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