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公开(公告)号：US08829985B2
公开(公告)日：2014-09-09
申请号：US13601139
申请日：2012-08-31
CPC分类号： H03F3/602 , H03F3/347 , H03F3/45475 , H03F2203/45048 , H03F2203/45051 , H03F2203/45138
摘要： According to one embodiment, a time difference amplifier circuit includes the first amplifier including first positive and negative inputs and first positive and negative outputs, the second amplifier including second positive and negative inputs and second positive and negative outputs, first to fourth wirings, a selection circuit including the first selection element connecting the first or fourth wirings to the second positive input, and the second selection element connecting the second or third wirings to the second negative input, and a control circuit connecting the amplifiers by the first and second wirings or by the third and fourth wirings.
摘要翻译： 根据一个实施例，时差放大器电路包括第一放大器，其包括第一正和负输入以及第一正和负输出，第二放大器包括第二正和负输入以及第二正和负输出，第一至第四布线，选择 包括将第一或第四布线连接到第二正输入的第一选择元件，以及将第二或第三布线连接到第二负输入的第二选择元件，以及通过第一布线和第二布线连接放大器的控制电路， 第三和第四布线。
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公开(公告)号：US20130234792A1
公开(公告)日：2013-09-12
申请号：US13601139
申请日：2012-08-31
IPC分类号： H03F3/60
CPC分类号： H03F3/602 , H03F3/347 , H03F3/45475 , H03F2203/45048 , H03F2203/45051 , H03F2203/45138
摘要： According to one embodiment, a time difference amplifier circuit includes the first amplifier including first positive and negative inputs and first positive and negative outputs, the second amplifier including second positive and negative inputs and second positive and negative outputs, first to fourth wirings, a selection circuit including the first selection element connecting the first or fourth wirings to the second positive input, and the second selection element connecting the second or third wirings to the second negative input, and a control circuit connecting the amplifiers by the first and second wirings or by the third and fourth wirings.
摘要翻译： 根据一个实施例，时差放大器电路包括第一放大器，其包括第一正和负输入以及第一正和负输出，第二放大器包括第二正和负输入以及第二正和负输出，第一至第四布线，选择 包括将第一或第四布线连接到第二正输入的第一选择元件，以及将第二或第三布线连接到第二负输入的第二选择元件，以及通过第一布线和第二布线连接放大器的控制电路， 第三和第四布线。
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公开(公告)号：USD667493S1
公开(公告)日：2012-09-18
申请号：US29396277
申请日：2011-06-28
申请人： Haruo Kobayashi , Naoki Mizuno
设计人： Haruo Kobayashi , Naoki Mizuno
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公开(公告)号：US08164316B2
公开(公告)日：2012-04-24
申请号：US12306612
申请日：2007-06-11
申请人： Yasunori Kobori , Tetsuya Furuya , Haruo Kobayashi
发明人： Yasunori Kobori , Tetsuya Furuya , Haruo Kobayashi
IPC分类号： G05F1/40
CPC分类号： H02M3/1582
摘要： A conventional DC/DC converter with both a step-up function and a step-down function has a drawback that its output voltage will be discontinuous when its operations are switched. An error signal, which is representative of a difference between a target voltage and a present voltage, is inputted to both a step-down switching control circuit and a step-up switching control circuit. When the difference between the target voltage and the present voltage is below a predetermined value, the switching of the step-down and step-up converters by the step-down and step-up switching control circuits, respectively, are caused to concurrently run in a time division manner.
摘要翻译： 具有升压功能和降压功能的常规DC / DC转换器具有缺点，即当其操作切换时，其输出电压将不连续。 代表目标电压和当前电压之间的差异的误差信号被输入到降压开关控制电路和升压开关控制电路。 当目标电压和当前电压之间的差低于预定值时，通过降压和升压开关控制电路分别对降压和升压转换器的切换同时运行 时间划分的方式。
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5.发明申请ANALOG DIGITAL CONVERT APPARATUS, ANALOG DIGITAL CONVERT METHOD, CONTROL APPARATUS AND PROGRAM 有权模拟数字转换装置，模拟数字转换方法，控制装置和程序公开(公告)号：US20100060495A1
公开(公告)日：2010-03-11
申请号：US12344286
申请日：2008-12-26
IPC分类号： H03M1/06
CPC分类号： H03M1/1061 , H03M1/1038 , H03M1/1215
摘要： Provided is an AD converting apparatus that converts an analog input signal into a digital output signal, comprising a plurality of AD converters supplied with sampling clocks differing from each other by prescribed phase amounts, each AD converter outputting an individual signal obtained by digitizing the input signal according to the supplied sampling clock; a plurality of amplitude-dependent characteristic correcting sections that are provided to correspond to the plurality of AD converters, each amplitude-dependent characteristic correcting section generating a corrected individual signal by correcting the individual signal output by the corresponding AD converter using a correction factor corresponding to an amplitude of the individual signal; and a combining section that generates the output signal by combining a plurality of the corrected individual signals.
摘要翻译： 提供了一种将模拟输入信号转换为数字输出信号的AD转换装置，包括：多个AD转换器，其被提供有彼此相差规定相位量的采样时钟，每个AD转换器输出通过数字化输入信号获得的各个信号 根据提供的采样时钟; 多个依赖于幅度的特征校正部分被提供以对应于多个AD转换器，每个幅度相关特性校正部分通过使用相应的AD转换器对应的校正因子校正由相应的AD转换器输出的各个信号来产生校正的各个信号 单个信号的幅度; 以及组合部，其通过组合多个经校正的各个信号来生成输出信号。
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6.发明申请公开(公告)号：US20070018867A1
公开(公告)日：2007-01-25
申请号：US11408951
申请日：2006-04-24
IPC分类号： H03M3/00
摘要： A continuous-time band-pass ΔΣ AD modulator subtracts an analog signal from a DA converter from an inputted analog signal, outputs an analog signal having a subtraction result to an AD converter via a continuous-time analog band-pass filter, outputs a digital signal from the AD converter to the DA converter, and outputs the same digital signal as a digital signal subjected to a band-pass ΔΣ AD modulation processing. The highest input frequency “fin” of the inputted analog signal is substantially set to three-fourths of a sampling frequency “fs”. The DA converter is configured to convert the inputted digital signal into the analog signal, and outputs the analog signal, which is inverted or not in response to a value of the inputted digital signal and has an amplitude of substantially zero and a gradient of substantially zero at a timing k/(2fs).
摘要翻译： 连续时间带通DeltaSigma AD调制器从输入的模拟信号中减去来自DA转换器的模拟信号，经由连续时间模拟带通滤波器将具有减法结果的模拟信号输出到AD转换器，输出数字 信号从AD转换器传送到DA转换器，并输出与进行带通DeltaSigma AD调制处理的数字信号相同的数字信号。 输入的模拟信号的最高输入频率“fin”基本上被设置为采样频率“fs”的四分之三。 DA转换器被配置为将输入的数字信号转换为模拟信号，并且输出模拟信号，该模拟信号被反相或不响应于输入的数字信号的值，并且具有基本为零的幅度和基本为零的梯度 在k /（2fs）的时刻。
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7.发明申请DA converter circuit provided with DA converter of segment switched capacitor type 失效DA转换电路配有片段开关电容型DA转换器公开(公告)号：US20050285768A1
公开(公告)日：2005-12-29
申请号：US11157923
申请日：2005-06-22
申请人： Hiroyuki Hagiwara , Haruo Kobayashi , Hao San , Atsushi Wada
发明人： Hiroyuki Hagiwara , Haruo Kobayashi , Hao San , Atsushi Wada
CPC分类号： H03M1/0665 , H03M1/806 , H03M3/43 , H03M3/464
摘要： A DA converter circuit is provided for use in a ΔΣ AD modulator. The DA converter circuit includes a DA converter of segment switched capacitor type. The DA converter includes an operational amplifier, capacitors as connected in parallel to each other to supply electric charges to the operational amplifier, an electrically charging switch for switching of electrically charging electric charges onto the respective capacitors or not, and an electrically discharging switch for switching or not electrically discharging electric charges from the respective capacitors or not. A switch device performs either one of the electrically charging, the electrically discharging, grounding, and polarity inversion onto the respective capacitors. A controller controls the electrically charging switch, the electrically discharging switch and the switch device to execute a process of second-order DWA algorithm for performing a second-order noise shaping of a non-linearity of the DA converter circuit.
摘要翻译： 提供了用于DeltaSigma AD调制器的DA转换器电路。 DA转换器电路包括段转换电容器类型的DA转换器。 DA转换器包括运算放大器，彼此并联连接的电容器，以向运算放大器提供电荷，用于将充电电荷转换到各个电容器上的充电开关，以及用于切换的放电开关 或不从各个电容器中电荷放电。 开关装置对各个电容器进行充电，放电，接地和极性反转之一。 控制器控制充电开关，放电开关和开关装置，以执行用于执行DA转换器电路的非线性的二阶噪声整形的二阶DWA算法的处理。
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公开(公告)号：US5051765A
公开(公告)日：1991-09-24
申请号：US453254
申请日：1989-12-20
CPC分类号： G03B17/04
摘要： A camera having a photographic optical system, a lens barrel disposed to be movable relative to a camera body in a direction of an optical axis and holding the photographic optical system, a focal length switchover mechanism for moving the photographic optical system such that the photographic optical system has a longer focal length as the same is moved forwardly in the direction of the optical axis, and a lens barrier displaceable between a closed position and an opened position for covering and uncovering a front face of the lens barrel. This lens barrier is disposed independently of the lens barrel adjacent a front end of the lens barrel having returned to a home position thereof at the side of the camera body such that the lens barrier is not movable in unison with the lens barrel. The lens barrel is moved to a projected position at which a front portion of the same is projected forwardly of the lens barrier when the focal length of the photographic optical system is set to be long by the focal length switchover mechanism. When the lens barrel is placed at the projected position and if the lens barrier is operated to its closed position, the lens barrel first returns to its home position before the lens barrier will close.
摘要翻译： 一种具有摄影光学系统的照相机，透镜镜筒，被设置为能够相对于照相机主体在光轴方向上移动并保持照相光学系统;焦距切换机构，用于移动摄影光学系统，使得照相光学 系统具有较长的焦距，因为其在光轴方向上向前移动，并且在关闭位置和打开位置之间可移动的透镜屏障用于覆盖和露出镜筒的前表面。 该透镜屏障独立于邻近镜筒前端的透镜镜筒，其已经返回到相机主体侧面的原始位置，使得透镜屏障不能与透镜镜筒一致地移动。 当焦距切换机构将照相光学系统的焦距设定得较长时，透镜镜筒移动到突出位置，在该突出位置上，其前部部分突出于透镜屏障的前方。 当镜筒放置在投影位置时，如果透镜屏障操作到其关闭位置，镜头镜筒首先返回到其原始位置，然后透镜屏障将关闭。
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公开(公告)号：US4571043A
公开(公告)日：1986-02-18
申请号：US533377
申请日：1983-09-16
申请人： Haruo Kobayashi , Hiroshi Ueda
发明人： Haruo Kobayashi , Hiroshi Ueda
CPC分类号： G03B17/04
摘要： A dustproofing mechanism for a thin, disc film cartridge type camera having windows in its front wall for the camera viewfinder and objective lens includes a cover structure guided for movement to alternative positions opening or closing both windows and an operating member accessible through one of the windows is connected to the cover structure to permit the manual selective movement of the cover structure to the window open or closed position.
摘要翻译： 一种用于相机取景器和物镜的在其前壁中具有窗口的薄的盘式暗盒式照相机的防尘机构包括被引导以移动到可打开或关闭两个窗口的可选位置的盖结构和可通过其中一个窗口访问的操作构件 连接到盖结构以允许将盖结构手动选择性地移动到窗户打开或关闭位置。
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公开(公告)号：US4256396A
公开(公告)日：1981-03-17
申请号：US952232
申请日：1978-10-17
申请人： Taizo Kawaguchi , Haruo Kobayashi
发明人： Taizo Kawaguchi , Haruo Kobayashi
CPC分类号： G03B13/12
摘要： A camera having at least two objective lenses of different focal lengths, which can be selectively externally manually positioned in the camera photographic optical path includes an inverted Galilean viewfinder optical system consisting of a front negative, divergent lens group and a rear positive, convergent lens group. The divergent lens group consists of two concave lenses which are transferrable between a first position providing a low magnification and a second position providing a high magnification. In the first position both concave lenses are in the viewfinder optical path and the other concave lens remains in the viewfinder optical path and is shifted to a second position axially spaced from its first position along the finder optical axis.
摘要翻译： 具有不同焦距的至少两个不同焦距的物镜的相机可以选择性地从外部手动定位在照相机摄影光路中，包括由前负发散透镜组和后正正会聚透镜组组成的反向伽利略取景器光学系统 。 发散透镜组由两个凹透镜组成，其可在提供低倍率的第一位置和提供高放大率的第二位置之间传输。 在第一位置，两个凹透镜都在取景器光路中，另一个凹透镜保持在取景器光路中，并且沿着取景器光轴移动到与其第一位置轴向间隔开的第二位置。
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