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公开(公告)号：US12108176B2
公开(公告)日：2024-10-01
申请号：US17942360
申请日：2022-09-12
Applicant: OLYMPUS CORPORATION
Inventor： Yoshio Hagihara
IPC: H04N25/709 , H04N25/771
CPC classification number: H04N25/709 , H04N25/771
Abstract: An imaging device includes a voltage generation circuit and an output circuit. The voltage generation circuit includes a first capacitance element including a fifth terminal. The voltage generation circuit is configured to provide the fifth terminal with a first voltage in accordance with a power source voltage so as to store an electric charge in the first capacitance element. The voltage generation circuit is configured to increase a voltage of the fifth terminal by a second voltage in accordance with the power source voltage so as to generate a control voltage having a greater absolute value than an absolute value of the power source voltage. The output circuit is configured to output the control voltage to at least one of a gate terminal of a reset transistor of a pixel and a gate terminal of a transfer transistor of the pixel.
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公开(公告)号：US11877053B2
公开(公告)日：2024-01-16
申请号：US17154006
申请日：2021-01-21
Applicant: OLYMPUS CORPORATION
Inventor： Yoshio Hagihara
CPC classification number: H04N23/65 , G02B23/2484 , H02M3/07 , H04N23/555
Abstract: A booster apparatus includes a voltage conversion control circuit configured to generate second power supply voltage, based on the ground voltage, first power supply voltage, and a driving clock signal. The voltage conversion control circuit includes: a booster circuit configured to generate the second power supply voltage based on an input booster clock signal; a clock buffer configured to generate the booster clock signal and output the generated booster clock signal to the booster circuit; and a voltage comparator that includes: a first voltage generation circuit configured to generate a first signal with a first voltage level; a second voltage generation circuit configured to generate a second signal with a second voltage level; and a comparator configured to compare the first voltage level and the second voltage level and control input of the driving clock signal to be supplied to the clock buffer based on a comparison result.
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公开(公告)号：US11765478B2
公开(公告)日：2023-09-19
申请号：US17078427
申请日：2020-10-23
Applicant: OLYMPUS CORPORATION
Inventor： Masashi Saito , Yoshio Hagihara
IPC: H04N1/00 , A61B1/00 , G02B23/24 , H04N25/709 , H03L7/089 , H03L7/099 , H04N7/18 , H03L7/10 , A61B1/05
CPC classification number: H04N25/709 , A61B1/00004 , G02B23/24 , H03L7/0891 , H03L7/099 , H03L7/104 , H04N7/18 , A61B1/05
Abstract: In an imaging system, a differential signal transmission circuit is configured to output a first signal to a first signal line in an image output period and is configured to output a second signal to a second signal line in the image output period. The first signal and the second signal are included in a differential signal. A signal output circuit is configured to output a second clock signal to the first signal line in a blanking period different from the image output period and is configured to output a second control signal to the second signal line in the blanking period. In a PLL, connection between a charge pump and a loop filter is controlled on the basis of the second control signal output to the second signal line.
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公开(公告)号：US20210044770A1
公开(公告)日：2021-02-11
申请号：US17078427
申请日：2020-10-23
Applicant: OLYMPUS CORPORATION
Inventor： Masashi Saito , Yoshio Hagihara
Abstract: In an imaging system, a differential signal transmission circuit is configured to output a first signal to a first signal line in an image output period and is configured to output a second signal to a second signal line in the image output period. The first signal and the second signal are included in a differential signal. A signal output circuit is configured to output a second clock signal to the first signal line in a blanking period different from the image output period and is configured to output a second control signal to the second signal line in the blanking period. In a PLL, connection between a charge pump and a loop filter is controlled on the basis of the second control signal output to the second signal line.
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公开(公告)号：US09918032B2
公开(公告)日：2018-03-13
申请号：US15260954
申请日：2016-09-09
Applicant: OLYMPUS CORPORATION
Inventor： Yoshio Hagihara
IPC: H04N5/376 , H04N5/378 , H04N5/3745 , H03M1/56
CPC classification number: H04N5/3765 , H03M1/56 , H04N5/37455 , H04N5/37457 , H04N5/378
Abstract: An imaging device includes: an imaging section in which a plurality of pixels each having a photoelectric conversion element are arranged in a matrix shape; a clock generator that generates a plurality of phase signals having different phases; a reference signal generator that generates a reference signal which increases or decreases with a lapse of time; a comparator that is disposed to correspond to each column of an array of the plurality of pixels, performs a comparing process of comparing a pixel signal output from each pixel with the reference signal, and outputs a first comparison result signal and a second comparison result signal indicating a result of the comparing process; a latch section that is disposed to correspond to the comparator and latches logic states of the plurality of phase signals; and a latch controller.
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Patent Agency Ranking
公开(公告)号：US09813645B2
公开(公告)日：2017-11-07
申请号：US15251176
申请日：2016-08-30
Applicant: OLYMPUS CORPORATION
Inventor： Makoto Ono , Nana Akahane , Masashi Saito , Yoshio Hagihara , Susumu Yamazaki
CPC classification number: H04N5/357 , A61B1/00009 , A61B1/045 , A61B1/05 , G02B23/2484 , H04N5/3655 , H04N5/378 , H04N2005/2255
Abstract: An image sensor includes: photoelectric conversion elements configured to receive light and accumulate a charge corresponding to an amount of received light; an imaging signal generating unit that converts the charge accumulated in each photoelectric conversion element into a voltage to generate an imaging signal; and a reference signal generating unit that generates a reference signal having a fluctuation component with a same phase as the imaging signal. The imaging signal generating unit includes: a conversion circuit that converts the charge accumulated in each photoelectric conversion element into the imaging signal; a noise eliminating circuit that eliminates a noise component included in the imaging signal; and an output circuit that outputs the imaging signal from the conversion circuit. The reference signal generating unit includes a circuit having a same structure as that of at least one of the conversion circuit, the noise eliminating circuit, and the output circuit.
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公开(公告)号：US20160381315A1
公开(公告)日：2016-12-29
申请号：US15260954
申请日：2016-09-09
Applicant: OLYMPUS CORPORATION
Inventor： Yoshio Hagihara
IPC: H04N5/376 , H04N5/3745 , H04N5/378
CPC classification number: H04N5/3765 , H03M1/56 , H04N5/37455 , H04N5/37457 , H04N5/378
Abstract: An imaging device includes: an imaging section in which a plurality of pixels each having a photoelectric conversion element are arranged in a matrix shape; a clock generator that generates a plurality of phase signals having different phases; a reference signal generator that generates a reference signal which increases or decreases with a lapse of time; a comparator that is disposed to correspond to each column of an array of the plurality of pixels, performs a comparing process of comparing a pixel signal output from each pixel with the reference signal, and outputs a first comparison result signal and a second comparison result signal indicating a result of the comparing process; a latch section that is disposed to correspond to the comparator and latches logic states of the plurality of phase signals; and a latch controller.
Abstract translation: 一种成像装置，包括：成像部，其中具有光电转换元件的多个像素以矩阵形状排列; 产生具有不同相位的多个相位信号的时钟发生器; 参考信号发生器，其产生随时间推移而增加或减少的参考信号; 设置为对应于多个像素的阵列的每列的比较器，执行将从每个像素输出的像素信号与参考信号进行比较的比较处理，并输出第一比较结果信号和第二比较结果信号 表明比较过程的结果; 锁存部分，其设置成对应于比较器并锁存多个相位信号的逻辑状态; 和锁存控制器。
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公开(公告)号：US20160182845A1
公开(公告)日：2016-06-23
申请号：US15059959
申请日：2016-03-03
Applicant: OLYMPUS CORPORATION
Inventor： Yoshio Hagihara
Abstract: An image capturing device includes: an image capturing section having a plurality of pixels disposed in a matrix and configured to output a pixel signal via a first signal line connected to pixels arranged in a first direction among the plurality of pixels; a plurality of calculators including: a comparator configured to compare a magnitude of a first analog signal with a threshold value to generate a digital value according to a comparison result; an amplification section configured to amplify the first analog signal by multiplying the first analog signal by an amplification degree β (1
Abstract translation: 一种图像拍摄装置，包括：图像拍摄部，具有以矩阵形式设置的多个像素，并经配置以经由与多个像素中的第一方向排列的像素连接的第一信号线输出像素信号; 多个计算器，包括：比较器，被配置为将第一模拟信号的幅度与阈值进行比较，以根据比较结果生成数字值; 放大部，被配置为通过将第一模拟信号乘以放大度＆amp; bgr来放大第一模拟信号; （1 <＆bgr <2），并通过根据数字值执行计算来输出第二模拟信号; 以及切换部，被配置为输出所述像素信号和/ bgr中的一个; 估计信号作为第一模拟信号，当计算第一数字值序列的最高有效位时。
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公开(公告)号：US09313425B2
公开(公告)日：2016-04-12
申请号：US13909203
申请日：2013-06-04
Applicant: OLYMPUS CORPORATION
Inventor： Yoshio Hagihara
CPC classification number: H04N5/3355 , H04N5/3575 , H04N5/378
Abstract: An image pickup device may include: an image capturing unit; a reference signal generation unit; a comparison unit that compares analog signals to the reference signal and ends the comparison process at a timing at which the reference signal satisfies a predetermined condition with respect to the analog signals; a clock generation unit; a latch unit that retains the low-order phase signal as a latch signal at a timing related to the end of the comparison process; a count unit that counts a signal related to one of the low-order phase signals and generates a high-order digital signal; a detection unit that generates a low-order digital signal by sequentially comparing logic states of a plurality of bits of the latch signal retained by the corresponding latch unit and encoding the latch signal; and an arithmetic unit that performs an arithmetic process.
Abstract translation: 图像拾取装置可以包括：图像捕获单元; 参考信号生成单元; 比较单元，其将模拟信号与参考信号进行比较，并在参考信号相对于模拟信号满足预定条件的定时结束比较处理; 时钟发生单元; 锁存单元，在与比较处理结束相关的定时保持低位相位信号作为锁存信号; 计数单元，对与低阶相位信号之一相关的信号进行计数，并生成高阶数字信号; 检测单元，其通过顺序地比较由对应的锁存单元保持的锁存信号的多个位的逻辑状态并对锁存信号进行编码来生成低阶数字信号; 以及执行算术处理的算术单元。
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公开(公告)号：US09035229B2
公开(公告)日：2015-05-19
申请号：US13785986
申请日：2013-03-05
Applicant: Olympus Corporation
Inventor： Yoshio Hagihara
CPC classification number: H04N5/378 , H01L27/14 , H04N5/3575
Abstract: In an imaging device, one end of a capacitive element is connected to a second input terminal to which a reference signal Ramp is applied, and the other end of the capacitive element is connected to a voltage source during a reset operation and to a voltage source after the reset operation through a switching element. As a result, the voltage of the second input terminal is changed such that a voltage difference between the first input terminal and the second input terminal becomes a voltage guaranteeing a comparison operation after the reset operation.
Abstract translation: 在成像装置中，电容元件的一端连接到施加了参考信号Ramp的第二输入端子，并且电容元件的另一端在复位操作期间连接到电压源，并连接到电压源 在通过开关元件的复位操作之后。 结果，改变第二输入端子的电压，使得第一输入端子和第二输入端子之间的电压差成为保证复位操作之后的比较操作的电压。
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