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公开(公告)号：US20220057646A1
公开(公告)日：2022-02-24
申请号：US17166406
申请日：2021-02-03
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Ji Hwan KIM , Koon Shik CHO , Youn Joong LEE
Abstract: An apparatus configured to reduce an offset of a Hall sensor includes a voltage-current conversion circuit and a current mirror circuit. The voltage-current conversion circuit is configured to generate a current configured to decrease when a voltage of an input terminal to which a bias current of a Hall sensor is input increases and increase when the voltage of the input terminal decreases. The current mirror circuit has a current mirror structure configured to feedback the bias current based on the current generated by the voltage-current conversion circuit.
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公开(公告)号：US20160004293A1
公开(公告)日：2016-01-07
申请号：US14746520
申请日：2015-06-22
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Deuk Hee PARK , Jong Gi RYU , Jong Woo LEE , Jae Shin LEE , Koon Shik CHO , Tae Ha LEE
CPC classification number: G06F1/3265 , G09G3/04 , G09G3/344 , G09G3/3453 , G09G2330/021 , G09G2380/04
Abstract: Provided are a display driving apparatus for updating information displayed on a display of an electronic device, an electronic device including the same, and a method for driving the display using the same. A display driving apparatus includes a driving controller configured to receive promotion setting information from a device controller of an electronic device and drive the display according to the received promotion setting information independently of the device controller.
Abstract translation: 提供了一种用于更新显示在电子设备的显示器上的信息的显示驱动装置，包括该电子设备的显示器的显示驱动装置以及使用该显示器驱动显示器的方法。 显示驱动装置包括：驱动控制器，被配置为从电子设备的设备控制器接收促销设置信息，并且根据所接收的促销设置信息独立于设备控制器驱动显示。
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公开(公告)号：US20210227114A1
公开(公告)日：2021-07-22
申请号：US16843146
申请日：2020-04-08
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Kyoung Joong MIN , Seo Hyung KIM , Koon Shik CHO
IPC: H04N5/232 , H04N5/225 , H04N13/204 , G06F1/16 , G06F1/26
Abstract: A camera module includes a gyro sensor generating shaking data, a first driver integrated circuit (IC) generating a driving signal to move a first lens barrel in one or more directions perpendicular to an optical axis direction, in response to the shaking data provided by the gyro sensor, and a second driver IC generating a driving signal to move a second lens barrel in one or more directions perpendicular to the optical axis direction, in response to the shaking data provided by the gyro sensor. Each of the first driver IC and the second driver IC operates in a normal mode and a low power mode, and when the first driver IC operates in the low power mode, whether to activate a communication path of the shaking data in the first driver IC is determined in response to a mode of the second driver IC.
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Patent Agency Ranking
公开(公告)号：US20190289214A1
公开(公告)日：2019-09-19
申请号：US16170619
申请日：2018-10-25
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Youn Joong LEE , Chang Seok LEE , Koon Shik CHO , Ho Kwon YOON
Abstract: An actuator of a camera module includes a driving coil disposed to face a detection target; a driving circuit including a plurality of transistors connected to the driving coil; and a processor configured to provide a respective gate control signal to a gate of each of the plurality of transistors, and detect a displacement of the detection target based on a component of an oscillation signal generated in a driving signal applied to the driving coil in response to an operation of any one of the plurality of transistors being switched by the respective gate control signal.
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公开(公告)号：US20180123473A1
公开(公告)日：2018-05-03
申请号：US15708775
申请日：2017-09-19
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Youn Joong LEE , Koon Shik CHO , Ho Kwon YOON
CPC classification number: H02M7/219 , H02M1/08 , H02M1/088 , H02M2001/0048 , Y02B70/1491
Abstract: A bridge circuit includes: a first leg including a first switching device and a second switching device connected between a first node and a ground; a second leg including a third switching device and a fourth switching device connected between the first node and the ground; and a first charge recycler connected between a gate of the first switching device and a gate of the third switching device, and configured to transfer charges accumulated in the first switching device to the gate of the third switching device prior to turning on the third switching device.
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公开(公告)号：US20200052621A1
公开(公告)日：2020-02-13
申请号：US16247855
申请日：2019-01-15
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Je Hyeon YU , Youn Joong LEE , Sung Man PANG , Jin KIM , Koon Shik CHO
Abstract: A camera module includes a lens barrel configured to be movable; a detection target disposed on one side of the lens barrel; an integrated coil and a sensing coil facing the detection target and disposed in a direction perpendicular to a direction of movement of the lens barrel; a driver configured to apply a driving signal to the integrated coil; and a position detector configured to detect a position of the lens barrel according to an inductance of the integrated coil and an inductance of the sensing coil, wherein a width of the integrated coil in the direction perpendicular to the direction of movement of the lens barrel and a width of the sensing coil in the direction perpendicular to the direction of movement of the lens barrel change in the direction of movement of the lens barrel.
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公开(公告)号：US20190124265A1
公开(公告)日：2019-04-25
申请号：US16014285
申请日：2018-06-21
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Youn Joong LEE , Sung Man PANG , Jin KIM , Sang Hyun MIN , Ja Hwi CHO , Koon Shik CHO , Je Hyeon YU , Ho Kwon YOON
Abstract: An actuator for a camera module includes two or more detectable elements, the detectable elements are respectively disposed on a first and second surface of a lens barrel, an oscillating element including a first oscillation circuit unit that includes two or more oscillation circuits facing the first surface of the lens barrel, and a second oscillation circuit unit that includes two or more oscillation circuits facing the second surface of the lens barrel, and a determining device that calculates a position of the lens barrel in response to oscillation signals output from the oscillating element. The determining device is configured to calculate the position of the lens barrel based on determined frequencies of oscillation signals of the first oscillation circuit unit and the second oscillation circuit unit.
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公开(公告)号：US20140049298A1
公开(公告)日：2014-02-20
申请号：US13665292
申请日：2012-10-31
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Joon Hyung LIM , Koon Shik CHO , Tah Joon PARK
IPC: H03B28/00
CPC classification number: H03B28/00 , H03K3/0231
Abstract: There are provided a frequency generation apparatus and a frequency generation method. The frequency generation apparatus includes a current generation unit varying an amount of current with respect to a temperature change; a capacitor in which charges are charged by the current generation unit; a discharge circuit unit comparing a charging voltage of the capacitor with a previously set first reference voltage and discharging the capacitor; and an output signal generation unit comparing the charging voltage of the capacitor with a previously set second reference voltage and generating an output signal, wherein the current generation unit varies the amount of current so as to maintain a constant frequency.
Abstract translation: 提供了频率产生装置和频率产生方法。 频率发生装置包括相对于温度变化改变电流量的电流产生单元; 电容器，其中电荷由电流产生单元充电; 放电电路单元，将电容器的充电电压与预先设定的第一参考电压进行比较，并对电容器进行放电; 以及输出信号生成单元，将电容器的充电电压与预先设定的第二参考电压进行比较并产生输出信号，其中，电流产生单元改变电流量以保持恒定的频率。
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