Abstract: Various embodiments provide an optical image stabilization system, comprising: a sensor configured to detect a disturbance signal; a processor; an actuator; and an actuator driver. The sensor can be configured to detect a disturbance signal, wherein the disturbance signal applies a force to a moving body, and wherein the force causes the moving body to displace. The processor can be configured to determine: a target position of the moving body according to the detected disturbance signal; and a corrected driving current according to the target position. The actuator can be configured to: receive the corrected driving current receive the corrected driving current; and position the moving body in response to receiving the corrected driving current, wherein the moving body is positioned in a direction opposite to that of the displacement. The actuator driver can be configured to controllably operate the actuator according to the corrected driving current.

Abstract: Various embodiments of the present technology may provide methods and apparatus for optical image stabilization. The methods and apparatus for optical image stabilization may be integrated within an electronic device. An exemplary system may include an actuator control circuit responsive to a sensor and a feedback signal from an actuator. The actuator control circuit may be configured to calibrate a gain applied to a drive signal based on a measured displacement of the electronic device and an output signal generated by the actuator control circuit.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for predictive modeling in an imaging system. The methods and apparatus for predictive modeling may comprise various circuits and/or systems configured to measure a temperature and utilize the measured temperature in conjunction with a predictive model to predict a self-heating value, temperature changes, and an ambient temperature.

Abstract: Various embodiments of the present technology may provide methods and apparatus for optical image stabilization. The methods and apparatus for optical image stabilization may be integrated within an electronic device. An exemplary system may include an actuator control circuit responsive to a sensor and a feedback signal from an actuator. The actuator control circuit may be configured to calibrate a gain applied to a drive signal based on a relative position between the actuator and the sensor and an output signal generated by the actuator control circuit.

Abstract: Various embodiments provide an optical image stabilization system, comprising: a sensor configured to detect a disturbance signal; a processor; an actuator; and an actuator driver. The sensor can be configured to detect a disturbance signal, wherein the disturbance signal applies a force to a moving body, and wherein the force causes the moving body to displace. The processor can be configured to determine: a target position of the moving body according to the detected disturbance signal; and a corrected driving current according to the target position. The actuator can be configured to: receive the corrected driving current receive the corrected driving current; and position the moving body in response to receiving the corrected driving current, wherein the moving body is positioned in a direction opposite to that of the displacement. The actuator driver can be configured to controllably operate the actuator according to the corrected driving current.

Abstract: Various embodiments of the present technology may provide methods and apparatus for optical image stabilization. The methods and apparatus for optical image stabilization may be integrated within an electronic device. An exemplary system may include an actuator control circuit responsive to a sensor and a feedback signal from an actuator. The actuator control circuit may be configured to calibrate a gain applied to a drive signal based on a relative position between the actuator and the sensor and an output signal generated by the actuator control circuit.

Abstract: Various embodiments of the present technology may provide methods and apparatus for optical image stabilization. A system may include an actuator control circuit responsive to a sensor and a feedback signal from an actuator. The actuator control circuit may be configured to calibrate a gain applied to a drive signal based on a measured difference value of the feedback signal generated by the actuator control circuit and a predetermined difference value.

Abstract: Various embodiments of the present technology may provide methods and system for an integrated circuit. The system may provide, at most, two integrated circuits (i.e., slave devices) connected to and configured to communicate with a host device (i.e., a master device). At least one of integrated circuits may comprise a first interface and a second interface, wherein the second interface is connected to the host in a manner that is opposite that of the first interface.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for focus control in an imaging system. The methods and apparatus may comprise various circuits and/or systems configured to measure the ambient temperature of the lens module and compute a corrected target position based on known thermal characteristics of the lens and/or the lens barrel. Factors used to obtain the corrected target position may comprise the material the of the lens barrel, the thermal time constant of the lens barrel, the linear expansion coefficient of the lens barrel, the effective focal length (EFL) of the lens, the thermal response of the lens, and/or the temperature characteristic coefficient of the EFL.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise various circuits and/or systems to generate a feedback signal according to an induced voltage and further generate various signal processing functions to selectively adjust a gain of the feedback signal. The apparatus for actuator control may comprise an induced voltage detection circuit and a feedback control circuit that operate together to generate the feedback signal used to control the actuator.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise a control circuit adapted to generate a control signal and various signal processing functions to generate a calibration code that is used to calibrate the control circuit. The apparatus for actuator control may comprise an induced voltage detection circuit to detect an induced voltage and a calibration circuit to generate the calibration code, which is used to calibrate the induced voltage detection circuit.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise various circuits and/or systems to detect an induced voltage and various signal processing functions to utilize the induced voltage to control the actuator. The apparatus for actuator control may comprise an induced voltage detection circuit and adjust the actuator position according to the detected induced voltage.

Abstract: Various embodiments of the present technology may comprise a method and apparatus for autofocus. In various embodiments, the methods and apparatus may decrease a settling time of a lens by increasing the target position gradually, varying the gain of a PID controller, and adding a kick pulse to a position signal.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise various circuits and/or systems to detect an induced voltage and various signal processing functions to utilize the induced voltage to control the actuator. The apparatus for actuator control may comprise an induced voltage detection circuit and adjust the actuator position according to the detected induced voltage.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for predictive modeling in an imaging system. The methods and apparatus for predictive modeling may comprise various circuits and/or systems configured to measure a temperature and utilize the measured temperature in conjunction with a predictive model to predict a self-heating value, temperature changes, and an ambient temperature.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise a control circuit adapted to generate a control signal and various signal processing functions to generate a calibration code that is used to calibrate the control circuit. The apparatus for actuator control may comprise an induced voltage detection circuit to detect an induced voltage and a calibration circuit to generate the calibration code, which is used to calibrate the induced voltage detection circuit.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise various circuits and/or systems to generate a feedback signal according to an induced voltage and further generate various signal processing functions to selectively adjust a gain of the feedback signal. The apparatus for actuator control may comprise an induced voltage detection circuit and a feedback control circuit that operate together to generate the feedback signal used to control the actuator.

Abstract: Various embodiments of the present technology may comprise a method and apparatus for actuator control. The methods and apparatus may comprise various digital signal processing functions to detect a back EMF (electromotive force) and compute a countermeasure value to reduce ringing. The methods and apparatus for actuator control may apply a drive signal corresponding to the countermeasure value. The magnitude and direction of the drive signal provided at particular times during operation may facilitate a shorter settling time.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise various circuits and/or systems to detect an induced voltage and various signal processing functions to utilize the induced voltage to control the actuator. The apparatus for actuator control may comprise an induced voltage detection circuit and adjust the actuator position according to the detected induced voltage.

Abstract: Various embodiments of the present technology may comprise methods and apparatus for actuator control. The methods and apparatus may comprise various circuits and/or systems to detect an induced voltage and various signal processing functions to utilize the induced voltage to control the actuator. The apparatus for actuator control may comprise an induced voltage detection circuit and adjust the actuator position according to the detected induced voltage.