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公开(公告)号：US06340942B1
公开(公告)日：2002-01-22
申请号：US09413475
申请日：1999-10-06
IPC分类号： H03M134
CPC分类号： H03M1/42
摘要： An analog to digital converter comprises a differential input portion that receives an input voltage and a reference voltage and has a first and second output terminals, a positive feedback portion connected to said first and second output terminals, a buffer if CMOSFETs connected at its input to the first output terminal, a second buffer connected at its input to the second output terminal, and a comparison circuit including a first switching portion connected between the first and second output terminals for connecting and disconnecting the first and second output terminals in response to a comparison clock signal. The comparison circuit is connected at its output to the first or second buffer. The input voltage and the reference voltage are compared when said switching portion changes from the connecting condition to the disconnecting condition in response to the comparison clock signal.
摘要翻译： 模数转换器包括差分输入部分，其接收输入电压和参考电压，并且具有第一和第二输出端子，连接到所述第一和第二输出端子的正反馈部分，如果CMOSFET在其输入端连接到 第一输出端子，在其输入端连接到第二输出端子的第二缓冲器，以及比较电路，包括连接在第一和第二输出端子之间的第一开关部分，用于响应于比较来连接和断开第一和第二输出端子 时钟信号。 比较电路在其输出端连接到第一或第二缓冲器。 当所述切换部分响应于比较时钟信号而从连接状态变为断开状态时，比较输入电压和参考电压。
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公开(公告)号：US06512785B1
公开(公告)日：2003-01-28
申请号：US09247828
申请日：1999-02-11
IPC分类号： H04B1707
CPC分类号： H04B1/7093 , H04B2201/70707
摘要： A matched filter bank including a plurality of matched filters and a sampling and holding units commonly used by the total matched filters. Therefore, the circuit size is diminished. An inverting amplifier for the matched filter with a variable gain includes an input capacitance, an inverting amplifier connected to an output of the input capacitance, and a plurality of feedback capacitances connected between an input and output of the inverting amplifier. A plurality of switches are connected to input side of the feedback capacitances for alternatively connecting the feedback capcitanec to the input of the inverting amplifier or a reference voltage. The feedback capacitances connected to the reference voltage are invalid with respect to a composite capacitance of the feedback capacitance and have no influence to the amplifier.
摘要翻译： 包括多个匹配滤波器的匹配滤波器组和由总匹配滤波器通常使用的采样和保持单元。 具有可变增益的匹配滤波器的反相放大器包括输入电容，连接到输入电容的输出的反相放大器和连接在输入电容的输入和输出之间的多个反馈电容 反相放大器。 多个开关连接到反馈电容的输入侧，用于将反馈capcitanec交替地连接到反相放大器的输入端或参考电压。 连接到参考电压的反馈电容相对于反馈电容的复合电容无效，并且对放大器没有影响。
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公开(公告)号：US06300823B1
公开(公告)日：2001-10-09
申请号：US09257914
申请日：1999-02-26
申请人： Changming Zhou , Kunihiko Suzuki , Takashi Tomatsu
发明人： Changming Zhou , Kunihiko Suzuki , Takashi Tomatsu
IPC分类号： H03K500
CPC分类号： H03H15/00
摘要： A filter circuit comprises a plurality of sampling and holding circuits for sampling and holding analog input signal with a predetermined sampling period, a calculation circuit for multiplying each the analog input signal by a predetermined multiplier, and for summing the multiplication results. The sampling and holding circuits are controlled in an electrical power such that the electrical power is decreased when holding.
摘要翻译： 滤波器电路包括多个采样和保持电路，用于以预定采样周期对模拟输入信号进行采样和保持;计算电路，用于将每个模拟输入信号乘以预定乘法器，并将相乘结果相加。 采样和保持电路被控制在电力中，使得在保持时电力减小。
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公开(公告)号：US6073149A
公开(公告)日：2000-06-06
申请号：US60000
申请日：1998-04-15
申请人： Guoliang Shou , Kazunori Motohashi , Ying Chen , Takashi Tomatsu , Changming Zhou , Jie Chen
发明人： Guoliang Shou , Kazunori Motohashi , Ying Chen , Takashi Tomatsu , Changming Zhou , Jie Chen
CPC分类号： G06F7/49 , G06F2207/386
摘要： A computational circuit for a multi-value addition comprising a parallel adder, an output adder, a quantizing portion and a logic conversion portion. Addition circuits in the above adders and thresholding circuits in the above quantizing portion consist of voltage-driven circuits including capacitive couplings.
摘要翻译： 一种用于多值附加的计算电路，包括并行加法器，输出加法器，量化部分和逻辑转换部分。 上述量化部分中的上述加法器和阈值电路中的加法电路由包括电容耦合的电压驱动电路组成。
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公开(公告)号：US6025752A
公开(公告)日：2000-02-15
申请号：US087924
申请日：1998-06-01
申请人： Changming Zhou , Guoliang Shou , Shengmin Lin , Takashi Tomatsu , Jie Chen
发明人： Changming Zhou , Guoliang Shou , Shengmin Lin , Takashi Tomatsu , Jie Chen
摘要： An inverting amplifying circuit for outputting an inversion of an input with good linearity, having an inverter circuit, a feedback capacitance, an input capacitance, a first refresh switch, a second refresh switch, a sleep switch, and a first cutoff switch. A sleep voltage is input through the sleep switch to the inverter circuit for minimizing the electrical power consumption. The sleep switch connects a terminal of the inverter circuit directly to ground when in a sleep mode. The first cut off switch is connected between an output of the inverter circuit and an output of the inverting amplifying circuit.
摘要翻译： 一种用于输出具有良好线性度的输入的反相的反相放大电路，具有反相器电路，反馈电容，输入电容，第一刷新开关，第二刷新开关，休眠开关和第一截止开关。 睡眠电压通过睡眠开关输入到逆变器电路，以最小化电力消耗。 休眠开关在休眠模式下将逆变器电路的端子直接连接到地。 第一截止开关连接在逆变器电路的输出端和反相放大电路的输出端之间。
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公开(公告)号：US06281831B1
公开(公告)日：2001-08-28
申请号：US09075342
申请日：1998-05-11
申请人： Guoliang Shou , Ying Chen , Takashi Tomatsu
发明人： Guoliang Shou , Ying Chen , Takashi Tomatsu
IPC分类号： H03M136
CPC分类号： H03M1/42
摘要： An A/D converter having a plurality of thresholding circuits corresponding to bits of output digital data, each of which includes odd number of inverters serially connected from a first stage to a last stage. The first stage inverter of the thresholding circuits have thresholds equal to a weights of the bits. The inverters of the last stage are of thresholds different from those of the first stage.
摘要翻译： A / D转换器具有对应于输出数字数据的位的多个阈值电路，每个阈值电路包括从第一阶段到最后阶段串行连接的奇数个反相器。 阈值电路的第一级反相器具有等于位的权重的阈值。 最后阶段的逆变器的阈值与第一级的阈值不同。
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7.发明授权Operational amplifier for stably driving a low impedance load of low power consumption 失效用于稳定驱动低功耗的低阻抗负载的运算放大器
公开(公告)号：US5285168A
公开(公告)日：1994-02-08
申请号：US944921
申请日：1992-09-15
申请人： Takashi Tomatsu , Takaaki Noda
发明人： Takashi Tomatsu , Takaaki Noda
CPC分类号： H03F3/45192 , H03F3/3001 , H03F2203/30036 , H03F2203/30096 , H03F2203/30129 , H03F2203/45028 , H03F2203/45182 , H03F2203/45281 , H04L25/028
摘要： An operational amplifier is equipped at its input stage with a folded cascode type differential amplifier and at its downstream stage with pre-buffers, which include a differential amplification stage of PMOS input and a differential amplification stage of NMOS input, as level shifters. A MOS resistor having its gate terminal fed with an intermediate bias potential between a supply voltage V.sub.DD and an earth potential is connected between every one of the drain terminals of current-mirror connected load MOSFETs in the pre-buffers. As a result, the gains of the pre-buffers in the steady state can be suppressed to about 10 dB or less. The individual MOSFETs of the push-pull output stage are individually driven by the pre-buffers of low gains.
摘要翻译： 运算放大器在其输入级配有折叠型共源共栅型差分放大器，其下游级具有预缓冲器，其中包括PMOS输入的差分放大级和NMOS输入的差分放大级，作为电平转换器。 其电源电压VDD和地电位之间的中间偏置电位馈入其栅极端子的MOS电阻连接在预缓冲器中电流镜连接的负载MOSFET的每个漏极端子之间。 结果，可以将稳定状态下的预缓冲器的增益抑制在10dB以下。 推挽输出级的各个MOSFET分别由低增益的预缓冲器驱动。
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8.发明申请Bone-Conduction Loudspeaker Set, Electronic Equipment, Electronic Translation System, Auditory Support System, Navigation Apparatus, and Cellular Phone 审中-公开骨传导扬声器组，电子设备，电子翻译系统，听觉支持系统，导航仪器和手机公开(公告)号：US20080267433A1
公开(公告)日：2008-10-30
申请号：US11883161
申请日：2006-01-31
申请人： Tooru Katou , Masakazu Masaki , Takashi Tomatsu
发明人： Tooru Katou , Masakazu Masaki , Takashi Tomatsu
IPC分类号： H04R5/02
CPC分类号： H04R1/1091 , H04R1/1041 , H04R5/033 , H04R2201/107 , H04R2460/13
摘要： A bone-conduction loudspeaker set is provided which is similar to the form of a personal ornament. Systems suitable for this are also provided. The bone-conduction loudspeaker set includes: two bone-conduction loudspeaker units; and a loudspeaker-microphone switching unit which switches from a mode where the two bone-conduction loudspeaker units are used as right and left stereo loudspeakers to a mode where one of them is used as a loudspeaker and the other is used as a microphone, and vice versa. A system includes: a mutual-distance detection unit which detects the distance between the two bone-conduction loudspeaker units being within a predetermined distance; and a distress-signal issuance unit which issues a distress signal based on a detection result obtained by the mutual-distance detecting unit.
摘要翻译： 提供了一种类似于个人饰品形式的骨传导扬声器组。 还提供了适用于此的系统。 骨传导扬声器组包括：两个骨传导扬声器单元; 以及将两个骨传导扬声器单元用作左右立体声扬声器的模式切换到其中一个用作扬声器并且另一个用作麦克风的模式的扬声器 - 麦克风切换单元，以及 反之亦然。 一种系统包括：相互距离检测单元，其检测在预定距离内的两个骨传导扬声器单元之间的距离; 以及遇险信号发布单元，其基于由所述相互距离检测单元获得的检测结果发出遇险信号。
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公开(公告)号：US5936463A
公开(公告)日：1999-08-10
申请号：US859109
申请日：1997-05-20
摘要： An stable inverted amplifying circuit includes an odd number of CMOS inverters and a feedback capacitance. Balancing resistances decrease the inverter open gain and limit the gain of the entire circuit. Serial capacitances act to prevent low-frequency oscillation. Oscillation-preventing circuits are also provided to reduce high-frequency oscillation. Sleep, refresh, and sleep-refresh switches are used to cancel residual loads and reduce power consumption.
摘要翻译： 稳定的反相放大电路包括奇数个CMOS反相器和反馈电容。 平衡电阻降低逆变器开路增益，并限制整个电路的增益。 串行电容用于防止低频振荡。 还提供防振电路以减少高频振荡。 休眠，刷新和睡眠刷新开关用于消除残余负载并降低功耗。
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