-
公开(公告)号：US20220368288A1
公开(公告)日：2022-11-17
申请号：US17742645
申请日：2022-05-12
Applicant: ROHM CO., LTD.
Inventor： Hiroyuki Aminaga , Koji Saito
Abstract: The present disclosure relates to an amplifying circuit and a voltage generating circuit. The amplifying circuit includes: an operational amplifier, including a first input terminal, a second input terminal and an output terminal, and configured to be capable of outputting an output voltage corresponding to an input voltage from the output terminal to the first input terminal; a voltage dividing circuit, including a series circuit of a plurality of voltage dividing resistors disposed between the output terminal and a predetermined potential terminal, wherein the series circuit includes a feedback node connected to the second input terminal and a correction node different from the feedback node; and a correction circuit, including a diode inserted between the correction node and the predetermined potential terminal.
-
公开(公告)号：US20130322861A1
公开(公告)日：2013-12-05
申请号：US13961620
申请日：2013-08-07
Applicant: Rohm Co., Ltd.
Inventor： Akihito Saito , Koji Saito
IPC: G02B27/64
CPC classification number: G02B27/646 , G03B5/00 , G03B2205/0007 , G03B2205/0015 , G03B2205/0069 , H04N5/2254 , H04N5/23287
Abstract: There is provided a lens control device that feeds a motor current to a lens drive motor which drives lens according to the motor current, the lens control device including: a servo computation portion that calculates a motor current setting value such that a deviation of the position of the lens to which a correction offset has been adjusted from a target position is reduced; a motor driver that generates the motor current according to the motor current setting value; and a calibration computation portion that adjusts the correction offset such that an average value of the motor current approaches zero.
Abstract translation: 提供一种透镜控制装置，其将电动机电流馈送到根据电动机电流驱动透镜的透镜驱动电动机，所述透镜控制装置包括：伺服计算部，其计算电动机电流设定值，使得位置的偏差 减少了从目标位置调整校正偏移的透镜; 电机驱动器，根据电动机电流设定值生成电动机电流; 以及校准计算部分，其调整校正偏移，使得电动机电流的平均值接近零。
-
公开(公告)号：US12160496B2
公开(公告)日：2024-12-03
申请号：US18339731
申请日：2023-06-22
Applicant: Rohm Co., Ltd.
Inventor： Koji Saito
Abstract: A signal transmission device includes a first pulse transmitting circuit configured to generate a first transmission pulse signal in synchronization with one of a rising edge and a falling edge of a first reference clock signal, a first pulse receiving circuit configured to receive a first reception pulse signal and generate a second reference clock signal, a first insulation communication circuit configured to transmit the first transmission pulse signal as the first reception pulse signal while insulating between the first pulse transmitting circuit and the first pulse receiving circuit, and a drive clock signal generating circuit configured to generate a drive clock signal having a predetermined oscillation frequency and a predetermined duty or a predetermined pulse width in synchronization with the second reference clock signal.
-
公开(公告)号：US20240201348A1
公开(公告)日：2024-06-20
申请号：US18537109
申请日：2023-12-12
Applicant: ROHM CO., LTD.
Inventor： Koji Saito
IPC: G01S7/52 , B06B1/06 , G01S15/931
CPC classification number: G01S7/52004 , B06B1/0644 , G01S15/931 , B06B2201/55
Abstract: The present disclosure provides a signal processing device. The signal processing device includes a receiving circuit, an envelope detection circuit, a differential amplifier circuit and a selection circuit. The receiving circuit is configured to generate a reflected wave signal based on a reflected wave from an object. The envelope detection circuit is configured to generate an envelope detection signal of the reflected wave signal. The differential amplifier circuit is configured to generate a differentially amplified signal of the envelope detection signal. The selection circuit is configured to select one of a first signal and a second signal. The first signal is the envelope detection signal or a delayed signal of the envelope detection signal. The second signal is the differentially amplified signal or a signal obtained using a difference between the envelope detection signal and the differentially amplified signal.
-
公开(公告)号：US20230421348A1
公开(公告)日：2023-12-28
申请号：US18339731
申请日：2023-06-22
Applicant: Rohm Co., Ltd.
Inventor： Koji Saito
CPC classification number: H04L7/033 , H04L7/0033 , H03L7/189
Abstract: A signal transmission device includes a first pulse transmitting circuit configured to generate a first transmission pulse signal in synchronization with one of a rising edge and a falling edge of a first reference clock signal, a first pulse receiving circuit configured to receive a first reception pulse signal and generate a second reference clock signal, a first insulation communication circuit configured to transmit the first transmission pulse signal as the first reception pulse signal while insulating between the first pulse transmitting circuit and the first pulse receiving circuit, and a drive clock signal generating circuit configured to generate a drive clock signal having a predetermined oscillation frequency and a predetermined duty or a predetermined pulse width in synchronization with the second reference clock signal.
-
Patent Agency Ranking
公开(公告)号：US10760973B2
公开(公告)日：2020-09-01
申请号：US16180403
申请日：2018-11-05
Applicant: ROHM CO., LTD.
Inventor： Koji Saito , Takahiro Kitahara , Yoshitsugu Uedaira
IPC: G01N21/25 , G01J3/51 , G01J1/44 , H01L27/146 , G01J1/04 , G01J3/02 , G01J3/46 , G01J3/28 , G01J1/02 , G01J3/12
Abstract: An optical sensor includes a light receiving unit and a calculating unit. The light receiving unit includes a plurality of light receiving elements and a plurality of color filters. The plurality of light receiving elements include a first light receiving element and a second light receiving element through which a photocurrent flows when receiving light. The plurality of color filters include a yellow filter that covers a light receiving surface of the first light receiving element and a red filter that covers a light receiving surface of the second light receiving element. The calculating unit calculates an intensity of a yellow wavelength band based on a difference between a first output signal obtained from the photocurrent of the first light receiving element and a second output signal obtained from the photocurrent of the second light receiving element.
-
公开(公告)号：US10209069B2
公开(公告)日：2019-02-19
申请号：US14962028
申请日：2015-12-08
Applicant: Rohm Co., Ltd.
Inventor： Koji Saito
IPC: G01C17/38
Abstract: An offset calculation circuit comprising a data obtaining unit for sequentially obtaining two-axis or three-axis magnetic detection data as a set of data points of a two-axis coordinate system or a three-axis coordinate system; an offset recording unit for recording offset components of the magnetic detection data as an offset point of the two-axis coordinate system or the three-axis coordinate system; and an offset calculation unit for calculating a first reference line or a first reference plane put between first and second data points among the set of data points, and subsequently moving the offset point recorded in the offset recording unit in a direction toward the first reference line or the first reference plane to calculate a first offset candidate point.
-
公开(公告)号：US20180114885A1
公开(公告)日：2018-04-26
申请号：US15784243
申请日：2017-10-16
Applicant: Rohm Co., Ltd.
Inventor： Koji Saito
IPC: H01L33/54 , H01L33/48 , H01L33/56 , H01L33/20 , H01L33/58 , H01L33/62 , H01L33/38 , H01L33/50 , F21V8/00
CPC classification number: H01L33/54 , G02B6/0001 , G02B6/4201 , G02B6/4253 , G02B6/4259 , H01L31/0203 , H01L31/02325 , H01L33/20 , H01L33/385 , H01L33/486 , H01L33/501 , H01L33/56 , H01L33/58 , H01L33/60 , H01L33/62 , H01L2933/0058
Abstract: A side surface type optical semiconductor device includes a substrate made of an insulating material and having a main surface and a back surface, which face opposite sides to each other in a thickness direction. The substrate includes a first concave portion recessed in the thickness direction and a second concave portion recessed further toward the back surface than the first concave portion, a semiconductor optical element is disposed across the first concave portion and the second concave portion, a hollow portion is formed between the semiconductor optical element and the second concave portion, and the hollow portion is used as a light guide path of the semiconductor optical element.
-
公开(公告)号：US20140233932A1
公开(公告)日：2014-08-21
申请号：US14260119
申请日：2014-04-23
Applicant: Rohm Co., Ltd.
Inventor： Akihito Saito , Koji Saito
IPC: G02B27/64
CPC classification number: G02B27/646 , G03B5/00 , G03B2205/0007 , G03B2205/0015 , G03B2205/0069 , H04N5/2254 , H04N5/23287
Abstract: There is provided a lens control device that feeds a motor current to a lens drive motor which drives lens according to the motor current, the lens control device including: a servo computation portion that calculates a motor current setting value such that a deviation of the position of the lens from a target position to which a correction offset has been added is reduced; a motor driver that generates the motor current according to the motor current setting value; and a calibration computation portion that adjusts the correction offset such that an average value of the motor current approaches zero.
Abstract translation: 提供一种透镜控制装置，其将电动机电流馈送到根据电动机电流驱动透镜的透镜驱动电动机，所述透镜控制装置包括：伺服计算部，其计算电动机电流设定值，使得位置的偏差 从已经添加了校正偏移的目标位置减去透镜; 电机驱动器，根据电动机电流设定值生成电动机电流; 以及校准计算部分，其调整校正偏移，使得电动机电流的平均值接近零。
-
公开(公告)号：US20230412182A1
公开(公告)日：2023-12-21
申请号：US18337138
申请日：2023-06-19
Applicant: ROHM Co., LTD.
Inventor： Koji Saito
IPC: H03M1/06
CPC classification number: H03M1/0604
Abstract: Provided is an AD converter including a capacitive DAC, a comparator, and a control logic unit. The capacitive DAC includes first bit capacitors connected in parallel to a first line, second bit capacitors connected in parallel to at least one second line, a connection capacitor connecting the first line and the second line, an adjustment capacitor connected to the second line, and a bit correction unit corresponding to at least either the first bit capacitors or the second bit capacitors. The bit correction unit includes a correction capacitor including a first terminal connected to at least one of the first line and the second line. A voltage can be applied to a second terminal of the correction capacitor in conjunction with a first bit capacitor or second bit capacitor corresponding to the correction capacitor among the first bit capacitors and the second bit capacitors.
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.015 seconds)
