公开(公告)号：US20160373666A1

公开(公告)日：2016-12-22

申请号：US15251176

申请日：2016-08-30

Applicant: OLYMPUS CORPORATION

Inventor： Makoto ONO ,  Nana AKAHANE ,  Masashi SAITO ,  Yoshio HAGIHARA ,  Susumu YAMAZAKI

IPC: H04N5/357 ,  A61B1/05 ,  A61B1/00 ,  G02B23/24

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.

Abstract translation: 图像传感器包括：光电转换元件，被配置为接收光并累积与所接收的光量相对应的电荷; 成像信号产生单元，其将在每个光电转换元件中累积的电荷转换成电压以产生成像信号; 以及参考信号生成单元，其生成具有与成像信号相同相位的波动分量的参考信号。 成像信号发生单元包括：转换电路，其将在每个光电转换元件中累积的电荷转换成成像信号; 噪声消除电路，其消除包括在成像信号中的噪声分量; 以及输出来自转换电路的摄像信号的输出电路。 参考信号发生单元包括具有与转换电路，噪声消除电路和输出电路中的至少一个相同结构的电路。

公开(公告)号：US20210132362A1

公开(公告)日：2021-05-06

申请号：US17149906

申请日：2021-01-15

Applicant: OLYMPUS CORPORATION

Inventor： Susumu YAMAZAKI

IPC: G02B23/24 ,  A61B1/00 ,  H04N5/3745

Abstract: An image pickup apparatus includes: an image pickup device including a plurality of pixels generating an image pickup signal corresponding to a light reception amount; a universal cable for transmitting electric power to the image pickup device; an AC-voltage-pulse-signal generation circuit provided on a proximal end side of the universal cable and generating an AC voltage pulse signal obtained by converting a positive voltage level and a negative voltage level of an inputted pulse signal into a predetermined positive voltage level and a predetermined negative voltage level, respectively, and outputting the AC voltage pulse signal to the universal cable; and a voltage adjustment circuit provided on a distal end side of the universal cable and converting the predetermined positive voltage level and the predetermined negative voltage level of the AC voltage pulse signal transmitted from the universal cable into a DC voltage level and output a DC voltage pulse signal.

公开(公告)号：US20190327414A1

公开(公告)日：2019-10-24

申请号：US16456538

申请日：2019-06-28

Applicant: OLYMPUS CORPORATION

Inventor： Susumu YAMAZAKI

IPC: H04N5/232 ,  A61B1/00

Abstract: An imaging device includes: a pulse-signal superimposing circuit configured to superimpose a first pulse signal generated by a pulse-signal generator on a voltage; a separating circuit that is disposed between a light receiver and a transmission cable, the separating circuit being configured to separate an offset voltage and a pulse voltage from the voltage transmitted through the transmission cable and output the offset voltage to the light receiver; a pulse-signal detector configured to detect the first pulse signal superimposed on the transmission cable; a pulse-signal converting circuit configured to convert a frequency of the first pulse signal detected by the pulse-signal detector into a frequency of a second pulse signal used to generate a synchronization signal for driving the light receiver; and a timing generator configured to generate the synchronization signal based on the second pulse signal obtained after conversion by the pulse-signal converting circuit.

公开(公告)号：US20170041561A1

公开(公告)日：2017-02-09

申请号：US15331964

申请日：2016-10-24

Applicant: OLYMPUS CORPORATION

Inventor： Nana AKAHANE ,  Susumu YAMAZAKI

IPC: H04N5/369 ,  A61B1/05 ,  H04N5/225 ,  H04N5/378 ,  H04N5/357 ,  A61B1/045 ,  A61B1/00

CPC classification number: H04N5/3698 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/045 ,  A61B1/051 ,  H04N5/2256 ,  H04N5/357 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/378 ,  H04N2005/2255

Abstract: An image sensor includes: a plurality of pixels arranged in a two-dimensional matrix form and configured to receive light from outside and generate and output an imaging signal depending on an amount of the received light; a transfer unit configured to transfer the imaging signal output from each of the pixels; a sample-and-hold unit configured to hold and output the imaging signal transferred from the transfer unit; a reference voltage generation unit configured to generate and output a reference voltage; an amplifier connected to the sample-and-hold unit and to the reference voltage generation unit and configured to amplify and output the imaging signal input from the sample-and-hold unit using the reference voltage as a reference; and a control unit configured to control the reference voltage to be input to the amplifier during at least one of a horizontal blanking period and a video signal period of the imaging signal.

Abstract translation: 图像传感器包括：以二维矩阵形式布置并被配置为从外部接收光并根据所接收的光的量产生并输出成像信号的多个像素; 传送单元，被配置为传送从每个像素输出的成像信号; 采样保持单元，被配置为保持并输出从所述传送单元传送的所述成像信号; 参考电压生成单元，被配置为产生并输出参考电压; 连接到采样保持单元和参考电压产生单元的放大器，并且被配置为使用参考电压作为参考来放大并输出从采样保持单元输入的成像信号; 以及控制单元，被配置为在所述成像信号的水平消隐周期和视频信号周期中的至少一个期间控制要被输入到所述放大器的参考电压。

公开(公告)号：US20150381866A1

公开(公告)日：2015-12-31

申请号：US14847226

申请日：2015-09-08

Applicant: OLYMPUS CORPORATION

Inventor： Makoto ONO ,  Nana AKAHANE ,  Masashi SAITO ,  Yoshio HAGIHARA ,  Susumu YAMAZAKI

IPC: H04N5/225 ,  H04N5/232

CPC classification number: H04N5/2256 ,  A61B1/00018 ,  A61B1/045 ,  H04N5/23241 ,  H04N2005/2255

Abstract: An imaging element includes: a plurality of pixels configured to receive light from outside and generate and output an imaging signal depending on an amount of the light received; a first transfer line connected to the pixel; a second transfer line; a column selection switch configured to select one pixel column and output the imaging signal to the second transfer line; a column source follower including a gate to which the imaging signal transferred by the first transfer line is input, a drain end being connected to a power supply voltage, and a source end being connected to the column selection switch; a constant current source configured to drive the column source follower and read out the imaging signal to the second transfer line; and a current generating unit configured to flow a predetermined current to the source end side of the column source follower.

Abstract translation: 成像元件包括：多个像素，被配置为从外部接收光，并根据所接收的光量产生并输出成像信号; 连接到像素的第一传输线; 第二条转运线 列选择开关，被配置为选择一个像素列并将成像信号输出到第二传输线; 包括输入由第一传输线传送的成像信号的栅极的列源极跟随器，漏极端连接到电源电压，源极端连接到列选择开关; 恒流源，被配置为驱动所述列源极跟随器并将所述成像信号读出到所述第二传输线; 以及电流产生单元，被配置为使预定电流流到所述列源极跟随器的源极端侧。