Patents by Inventor Yukihiko Shigeoka
Yukihiko Shigeoka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10868963Abstract: Various embodiments of the present technology may provide a method and apparatus for a processing circuit. The processing circuit may include an amplifier and other processing circuitry that operate together to process and/or adjust a gyro signal. The processing circuit may include an integration circuit configured to compute a first value and adjust the first value to a predetermined maximum value if the first value is greater than the predetermined maximum value. The processing circuit may also include a gain control circuit configured to compute a first coefficient based on the first value; select one of: the first coefficient and a second coefficient; and adjust a gain of the amplifier according to the selected coefficient.Type: GrantFiled: March 14, 2019Date of Patent: December 15, 2020Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventor: Yukihiko Shigeoka
-
Patent number: 10473949Abstract: The optical image stabilizer system according to various aspects of the present technology may comprise a set of springs connected to a lens such that the force exerted by the set of springs and the force exerted by gravity are in equilibrium. A position detection sensor may be linked to the lens and detect a current position of the lens. An accelerometer may be communicatively linked to the lens and generate a set of acceleration data corresponding to the acceleration of the lens. A control unit may be coupled to at least one of the lens, position detector sensor, and the accelerometer, and calculate a new target position for the lens. A motor may be coupled to the lens and respond to the target position received from the control unit.Type: GrantFiled: January 30, 2017Date of Patent: November 12, 2019Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Tetsuya Tokoro, Yukihiko Shigeoka, Yasuo Hayashi
-
Publication number: 20190215458Abstract: Various embodiments of the present technology may provide a method and apparatus for a processing circuit. The processing circuit may include an amplifier and other processing circuitry that operate together to process and/or adjust a gyro signal. The processing circuit may include an integration circuit configured to compute a first value and adjust the first value to a predetermined maximum value if the first value is greater than the predetermined maximum value. The processing circuit may also include a gain control circuit configured to compute a first coefficient based on the first value; select one of: the first coefficient and a second coefficient; and adjust a gain of the amplifier according to the selected coefficient.Type: ApplicationFiled: March 14, 2019Publication date: July 11, 2019Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventor: Yukihiko SHIGEOKA
-
Patent number: 10277821Abstract: Various embodiments of the present technology may comprise a method and apparatus for optical image stabilization. The apparatus may comprise a lens coupled to an actuator. The actuator may receive signals from an OIS circuit corresponding to a magnitude and direction, and the actuator may act on these signals by positioning the lens accordingly. The OIS circuit may comprise a gain control circuit configured to limit the magnitude of the signal sent to the actuator.Type: GrantFiled: February 8, 2017Date of Patent: April 30, 2019Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventor: Yukihiko Shigeoka
-
Publication number: 20180217396Abstract: The optical image stabilizer system according to various aspects of the present technology may comprise a set of springs connected to a lens such that the force exerted by the set of springs and the force exerted by gravity are in equilibrium. A position detection sensor may be linked to the lens and detect a current position of the lens. An accelerometer may be communicatively linked to the lens and generate a set of acceleration data corresponding to the acceleration of the lens. A control unit may be coupled to at least one of the lens, position detector sensor, and the accelerometer, and calculate a new target position for the lens. A motor may be coupled to the lens and respond to the target position received from the control unit.Type: ApplicationFiled: January 30, 2017Publication date: August 2, 2018Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Tetsuya TOKORO, Yukihiko SHIGEOKA, Yasuo HAYASHI
-
Publication number: 20170302853Abstract: Various embodiments of the present technology may comprise a method and apparatus for optical image stabilization. The apparatus may comprise a lens coupled to an actuator. The actuator may receive signals from an OIS circuit corresponding to a magnitude and direction, and the actuator may act on these signals by positioning the lens accordingly. The OIS circuit may comprise a gain control circuit configured to limit the magnitude of the signal sent to the actuator.Type: ApplicationFiled: February 8, 2017Publication date: October 19, 2017Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventor: Yukihiko SHIGEOKA
-
Patent number: 8237327Abstract: Abnormal noise generated while driving a piezoelectric actuator is prevented. A pulse-generation circuit is capable of selectively generating a displacement pulse and a stationary pulse as a drive pulse for application to a piezoelectric element, the displacement pulse having a duty ratio for causing a lens to be displaced by a predetermined step width, and the stationary pulse having a duty ratio for causing the lens to remain stationary in a current position. The pulse-generation circuit controls the production of the drive pulse continuously for a plurality of times within the servo control cycle, causes the displacement pulse to be produced when the remainder of a required amount of displacement is equal to or greater than a threshold value, and causes the stationary pulse to be continuously produced until the initiation of the next servo control cycle when the remainder is less than the threshold value.Type: GrantFiled: April 5, 2010Date of Patent: August 7, 2012Assignees: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd., Fujifilm CorporationInventors: Tetsuya Tokoro, Yukihiko Shigeoka, Hisao Ito, Hideo Yoshida, Takezo Nagamitsu
-
Publication number: 20100271700Abstract: Abnormal noise generated while driving a piezoelectric actuator is prevented. A pulse-generation circuit is capable of selectively generating a displacement pulse and a stationary pulse as a drive pulse for application to a piezoelectric element, the displacement pulse having a duty ratio for causing a lens to be displaced by a predetermined step width, and the stationary pulse having a duty ratio for causing the lens to remain stationary in a current position. The pulse-generation circuit controls the production of the drive pulse continuously for a plurality of times within the servo control cycle, causes the displacement pulse to be produced when the remainder of a required amount of displacement is equal to or greater than a threshold value, and causes the stationary pulse to be continuously produced until the initiation of the next servo control cycle when the remainder is less than the threshold value.Type: ApplicationFiled: April 5, 2010Publication date: October 28, 2010Applicants: SANYO ELECTRIC CO., LTD., SANYO SEMICONDUCTOR CO., LTD., FUJINON CORPORATIONInventors: Tetsuya TOKORO, Yukihiko SHIGEOKA, Hisao ITO, Hideo YOSHIDA, Takezo NAGAMITSU
-
Patent number: 7432680Abstract: A motor control circuit for reducing current consumption. A stepping motor control circuit includes an A/B phase current setting signal generation circuit for generating an A/B phase current signal setting signals provided to a stepping motor driver to supply a stepping motor with a predetermined amount of drive current. Based on a switch signal, first and second switches selectively output an A/B phase current setting signal and an A/B phase reference signal, for reducing the drive current of the stepping motor more than the A/B phase current setting signal. An intermittent drive control circuit generates the switch signal. The stepping motor control circuit provides the motor driver with the A/B phase reference signal in accordance with the switch signal.Type: GrantFiled: March 3, 2006Date of Patent: October 7, 2008Assignee: Sanyo Electric Co., Ltd.Inventors: Tomonori Kamiya, Takeshi Kura, Yukihiko Shigeoka, Naohiro Nishiwaki
-
Publication number: 20060197488Abstract: A motor control circuit for reducing current consumption. A stepping motor control circuit includes an A/B phase current setting signal generation circuit for generating an A/B phase current signal setting signals provided to a stepping motor driver to supply a stepping motor with a predetermined amount of drive current. Based on a switch signal, first and second switches selectively output an A/B phase current setting signal and an A/B phase reference signal, for reducing the drive current of the stepping motor more than the A/B phase current setting signal. An intermittent drive control circuit generates the switch signal. The stepping motor control circuit provides the motor driver with the A/B phase reference signal in accordance with the switch signal.Type: ApplicationFiled: March 3, 2006Publication date: September 7, 2006Inventors: Tomonori Kamiya, Takeshi Kura, Yukihiko Shigeoka, Naohiro Nishiwaki
-
Control circuit for optical disk apparatus and method of controlling record/playback of optical disk
Publication number: 20050276190Abstract: A control circuit provided in an optical disk apparatus which apparatus has a motor to move an optical pickup unit for performing record/playback control of an optical disk in a radial direction of the optical disk, sets a plurality of concentric annular zones on the optical disk, and performs record/playback control, for each zone, of the optical disk. The control circuit comprises a pulse period detector for detecting pulse periods of a periodic pulse control signal which drives the motor; and a zone determination section that determines the zone which the optical pickup unit is facing on the basis of the number of pulse period detection times detected by the pulse period detector.Type: ApplicationFiled: June 9, 2005Publication date: December 15, 2005Inventors: Tomonori Kamiya, Takeshi Kura, Yukihiko Shigeoka, Naohiro Nishiwaki