公开(公告)号：US20090033413A1

公开(公告)日：2009-02-05

申请号：US12186272

申请日：2008-08-05

Applicant: Jae-joon MOON ,  Dae-gyu Lee

Inventor： Jae-joon MOON ,  Dae-gyu Lee

IPC: H03F1/34 ,  H03G3/20

CPC classification number: H03G3/001 ,  H03F1/34 ,  H03F3/211 ,  H03F3/45475 ,  H03G1/0088

Abstract: A gain controlled amplifier and a cascoded gain controlled amplifier based on the same are disclosed. The gain controlled amplifier includes an operational amplifier for amplifying an input signal, an input resistor connected to an input terminal of the operational amplifier, a feedback resistor connected to an output terminal of the operational amplifier, and a resistor circuit for providing voltages having different levels to the input terminal and the output terminal of the operational amplifier, respectively, according to a digital signal composed of specified bits. The gain controlled amplifier employs an R-2R ladder circuit controlled by a digital signal so as to obtain a gain that is in linear proportion to a decibel scale. Since the R-2R ladder circuit operates with a small resistance value, the chip size of the gain controlled amplifier can be reduced.

Abstract translation: 公开了一种增益控制放大器和基于此的增益控制放大器。 增益控制放大器包括用于放大输入信号的运算放大器，连接到运算放大器的输入端的输入电阻器，连接到运算放大器的输出端的反馈电阻器和用于提供具有不同电平的电压的电阻器电路 分别根据由指定位组成的数字信号分别连接到运算放大器的输入端和输出端。 增益控制放大器采用由数字信号控制的R-2R梯形电路，以获得与分贝刻度线性成比例的增益。 由于R-2R梯形电路以小的电阻值工作，所以可以减小增益控制放大器的芯片尺寸。

公开(公告)号：US20060181343A1

公开(公告)日：2006-08-17

申请号：US11348256

申请日：2006-02-07

Applicant: Jae-joon Moon ,  Dae-gyu Lee

Inventor： Jae-joon Moon ,  Dae-gyu Lee

IPC: H03F1/36

CPC classification number: H03G3/001 ,  H03F1/34 ,  H03F3/211 ,  H03F3/45475 ,  H03G1/0088

Abstract: A gain controlled amplifier and a cascoded gain controlled amplifier based on the same are disclosed. The gain controlled amplifier includes an operational amplifier for amplifying an input signal, an input resistor connected to an input terminal of the operational amplifier, a feedback resistor connected to an output terminal of the operational amplifier, and a resistor circuit for providing voltages having different levels to the input terminal and the output terminal of the operational amplifier, respectively, according to a digital signal composed of specified bits. The gain controlled amplifier employs an R-2R ladder circuit controlled by a digital signal so as to obtain a gain that is in linear proportion to a decibel scale. Since the R-2R ladder circuit operates with a small resistance value, the chip size of the gain controlled amplifier can be reduced.

公开(公告)号：US20060181336A1

公开(公告)日：2006-08-17

申请号：US11328236

申请日：2006-01-10

Applicant: Dae-gyu Lee ,  Jae-joon Moon

Inventor： Dae-gyu Lee ,  Jae-joon Moon

IPC: G05F1/10

CPC classification number: G05F3/30

Abstract: Provided is a bandgap reference voltage generator without a start-up failure, including: a reference voltage generator, generating a bandgap reference voltage; a current provider providing a start-up current to the reference voltage generator using a predetermined power; and if the current provider fails to provide the start-up current to the reference voltage generator, a current providing support providing the start-up current to the reference voltage generator using the predetermined power used by the current provider. Therefore, when the bandgap reference voltage generator starts up by itself at an initial driving, a start-up failure does not occur. Thus, other electric elements integrated into an integrated circuit element can be supplied with a rated bandgap reference voltage and thus normally operate.

Abstract translation: 提供一种无启动故障的带隙参考电压发生器，包括：参考电压发生器，产生带隙参考电压; 当前提供者使用预定功率向基准电压发生器提供启动电流; 并且如果当前提供商未能向参考电压发生器提供启动电流，则提供支持的电流使用当前提供商使用的预定功率向基准电压发生器提供启动电流。 因此，当带隙参考电压发生器在初始驱动时自身启动时，不会发生启动故障。 因此，集成到集成电路元件中的其它电气元件可以被提供有额定带隙参考电压，并且因此通常工作。

公开(公告)号：US09237280B2

公开(公告)日：2016-01-12

申请号：US13356200

申请日：2012-01-23

Applicant: Il-do Kim ,  Jeong-won Lee ,  Jae-joon Moon

Inventor： Il-do Kim ,  Jeong-won Lee ,  Jae-joon Moon

IPC: H04N5/235 ,  H04N5/353

CPC classification number: H04N5/3532 ,  H04N5/2353

Abstract: A photographing apparatus includes a detection unit for detecting light exposure error resulting from a difference in a moving characteristic between a mechanical rear curtain and an electronic front curtain using data of some area constituting an image sensor, a signal generating unit for generating a reset signal of the image sensor, and a control unit for controlling to correct a moving characteristic of the electronic front curtain using the detected light exposure error and generate a reset signal of the image sensor according to the corrected moving characteristic. Accordingly, a moving characteristic of an electronic front curtain may be conveniently corrected by a user.

Abstract translation: 拍摄装置包括：检测单元，用于使用构成图像传感器的一些区域的数据，检测由机械后帘和电子前幕之间的运动特性的差异引起的曝光误差;信号产生单元，用于产生复位信号 图像传感器和控制单元，用于使用检测到的曝光误差来控制校正电子前幕的移动特性，并根据校正的移动特性生成图像传感器的复位信号。 因此，电子前帘的移动特性可以由用户方便地校正。

公开(公告)号：US07417499B2

公开(公告)日：2008-08-26

申请号：US11348256

申请日：2006-02-07

Applicant: Jae-joon Moon ,  Dae-gyu Lee

Inventor： Jae-joon Moon ,  Dae-gyu Lee

IPC: H03F1/36 ,  H03G3/20

CPC classification number: H03G3/001 ,  H03F1/34 ,  H03F3/211 ,  H03F3/45475 ,  H03G1/0088

Abstract: A gain controlled amplifier and a cascoded gain controlled amplifier based on the same are disclosed. The gain controlled amplifier includes an operational amplifier for amplifying an input signal, an input resistor connected to an input terminal of the operational amplifier, a feedback resistor connected to an output terminal of the operational amplifier, and a resistor circuit for providing voltages having different levels to the input terminal and the output terminal of the operational amplifier, respectively, according to a digital signal composed of specified bits. The gain controlled amplifier employs an R-2R ladder circuit controlled by a digital signal so as to obtain a gain that is in linear proportion to a decibel scale. Since the R-2R ladder circuit operates with a small resistance value, the chip size of the gain controlled amplifier can be reduced.

Abstract translation: 公开了一种增益控制放大器和基于此的增益控制放大器。 增益控制放大器包括用于放大输入信号的运算放大器，连接到运算放大器的输入端的输入电阻器，连接到运算放大器的输出端的反馈电阻器和用于提供具有不同电平的电压的电阻器电路 分别根据由指定位组成的数字信号分别连接到运算放大器的输入端和输出端。 增益控制放大器采用由数字信号控制的R-2R梯形电路，以获得与分贝刻度线性成比例的增益。 由于R-2R梯形电路以小的电阻值工作，所以可以减小增益控制放大器的芯片尺寸。