Abstract: A position of a lens is detected by detecting, using a phototransistor, light that is emitted from a photodiode and that varies depending on lens position. A control unit divides a moving range of the lens into a plurality of areas, approximates a relationship between lens positions and current of the phototransistor for each of the areas, corrects a current of the phototransistor using the approximated relationship so as to obtain a corrected detection current having a linear relationship with respect to lens positions, and detects the position of the lens using the obtained corrected detection current.

Abstract: A position of a lens is detected by detecting, using a phototransistor, light that is emitted from a photodiode and that varies depending on lens position. A control unit divides a moving range of the lens into a plurality of areas, approximates a relationship between lens positions and current of the phototransistor for each of the areas, corrects a current of the phototransistor using the approximated relationship so as to obtain a corrected detection current having a linear relationship with respect to lens positions, and detects the position of the lens using the obtained corrected detection current.

Abstract: A photodetector control circuit in a photodetector for detecting light from a photodiode using a phototransistor and controls drive of the photodiode and detection of a current of the phototransistor has a received light amount detecting unit that detects a detection current, which flows through the phototransistor in accordance with a received light amount, by converting the detection current into a detection voltage, and compares the detection voltage with a reference voltage detected during reception of a reference light amount, to thereby detect a change in the received light amount, a diode current control unit for controlling a diode current that is caused to flow through the photodiode, and a control unit that detects a temperature based on a forward drop voltage of the photodiode and estimates a current change rate of the phototransistor based on the detected temperature.

Abstract: Light from a photodiode is detected using a phototransistor. At the time of startup, set data concerning a detected current is received at a communication interface, and the received set data is compared with the detected current. A control unit adjusts a current of the phototransistor so that the detected current matches the set data.

Abstract: A position of a lens is detected by detecting, using a phototransistor, light that is emitted from a photodiode and that varies depending on lens position. A control unit divides a moving range of the lens into a plurality of areas, approximates a relationship between lens positions and current of the phototransistor for each of the areas, corrects a current of the phototransistor using the approximated relationship so as to obtain a corrected detection current having a linear relationship with respect to lens positions, and detects the position of the lens using the obtained corrected detection current.

Abstract: A program processing device comprises a CPU for carrying out predetermined processing according to a program; an internal memory storing the program and data generated by the CPU by carrying out the program, and a data acquiring circuit connected to an external program processing device, for acquiring the program from the external program processing device to write into the internal memory, wherein the CPU, the internal memory, a debug processing circuit, and the data acquiring circuit are integrally mounted on the same semiconductor substrate.

Abstract: Light from a photodiode is detected using a phototransistor. At the time of startup, set data concerning a detected current is received at a communication interface, and the received set data is compared with the detected current. A control unit adjusts a current of the phototransistor so that the detected current matches the set data.

Abstract: A vibration control equalizer for generating a vibration signal for determining a driving amount for an optical component on the basis of an output signal of a vibration detector for detecting vibration of an imaging apparatus, a position control equalizer for calculating a position signal for determining a driving amount for the optical component on the basis of an output signal of a position detector for detecting position of the optical component, and an internal CPU for controlling the vibration control equalizer and the position control equalizer are provided, and compensation for the output signal of the position detector is performed by the internal CPU.

Abstract: A first equalizer generates a vibration-component signal indicating the amount of movement of an image pickup apparatus according to an output signal of a vibration detecting element for detecting the vibration of the image pickup apparatus. The second equalizer generates a drive signal used to control a driver element to correct the position of a lens or image pickup devices, based on the output signal of a position detecting element for detecting the position of the lens to be driven or the image pickup devices to be driven and the vibration-component signal. A control unit verifies the operations of the driver element, the position detecting element, the vibration detecting element and the first equalizer, based on the output signal of the position detecting element and the vibration-component signal.

Abstract: An internal CPU, a vibration control equalizer for processing an output signal of a vibration detector for detecting vibration of an imaging apparatus and calculating a vibration signal for determining a driving amount for an optical component on the basis of vibration of the imaging apparatus, a position control equalizer for calculating a position signal for determining a driving amount for the optical component on the basis of position of the optical component, and a control switching section for switching between the internal CPU and an external control circuit for the imaging apparatus for control of the vibration control equalizer and the position control equalizer.

Abstract: In an image stabilization control circuit of an image-capturing device, a gyro-equalizer (24) is used to integrate an angular velocity signal corresponding to vibration, and determine a required magnitude of displacement of a lens. The gyro-equalizer (24) integrates the angular velocity signal from a gyro-sensor (12) using an integration circuit (46) (LPF), and converts the result into an angular signal. A direct-current component of the angular signal is removed using a centering circuit (52) (HPF). Excessive phase delay of the angular signal on a high-frequency side caused by a phase characteristic of the gyro-sensor (12) is compensated by a phase lead compensation circuit (50) composed of a high-boost filter, and the phase delay of the angular signal with respect to the angular velocity signal is brought nearer to 90° by an integration process.

Abstract: A image stabilization control circuit for an image capturing device, wherein a gyro-equalizer (24) integrates an angular velocity signal from a gyro-sensor (12) in an integration circuit (46). The integration circuit (46) is composed of a low-boost filter (LBF), and a phase delay in a target compensation region is set to a value appropriate for an integration process. Furthermore, a characteristic whereby the LBF reduces the phase delay at higher frequencies is used, compensation is applied to the excess phase delay of the angular signal in the high-frequency region brought about by the effect of the phase delay generated in the high-frequency region by the output signal of the gyro-sensor (12), and the phase delay in the high-frequency region is brought nearer to 90 degrees. This allows the accuracy of the process for determining the required displacement magnitude of a lens to be increased.

Abstract: In an image stabilization control circuit of an image-capturing device, a gyro-equalizer (24) is used to integrate an angular velocity signal corresponding to vibration, and determine a required magnitude of displacement of a lens. The gyro-equalizer (24) integrates the angular velocity signal from a gyro-sensor (12) using an integration circuit (46) (LPF), and converts the result into an angular signal. A direct-current component of the angular signal is removed using a centering circuit (52) (HPF). Excessive phase delay of the angular signal on a high-frequency side caused by a phase characteristic of the gyro-sensor (12) is compensated by a phase lead compensation circuit (50) composed of a high-boost filter, and the phase delay of the angular signal with respect to the angular velocity signal is brought nearer to 90° by an integration process.

Abstract: A image stabilization control circuit for an image capturing device, wherein a gyro-equalizer (24) integrates an angular velocity signal from a gyro-sensor (12) in an integration circuit (46). The integration circuit (46) is composed of a low-boost filter (LBF), and a phase delay in a target compensation region is set to a value appropriate for an integration process. Furthermore, a characteristic whereby the LBF reduces the phase delay at higher frequencies is used, compensation is applied to the excess phase delay of the angular signal in the high-frequency region brought about by the effect of the phase delay generated in the high-frequency region by the output signal of the gyro-sensor (12), and the phase delay in the high-frequency region is brought nearer to 90 degrees. This allows the accuracy of the process for determining the required displacement magnitude of a lens to be increased.

Abstract: A vibration control equalizer for generating a vibration signal for determining a driving amount for an optical component on the basis of an output signal of a vibration detector for detecting vibration of an imaging apparatus, a position control equalizer for calculating a position signal for determining a driving amount for the optical component on the basis of an output signal of a position detector for detecting position of the optical component, and an internal CPU for controlling the vibration control equalizer and the position control equalizer are provided, and compensation for the output signal of the position detector is performed by the internal CPU.

Abstract: A first equalizer generates a vibration-component signal indicating the amount of movement of an image pickup apparatus according to an output signal of a vibration detecting element for detecting the vibration of the image pickup apparatus. The second equalizer generates a drive signal used to control a driver element to correct the position of a lens or image pickup devices, based on the output signal of a position detecting element for detecting the position of the lens to be driven or the image pickup devices to be driven and the vibration-component signal. A control unit verifies the operations of the driver element, the position detecting element, the vibration detecting element and the first equalizer, based on the output signal of the position detecting element and the vibration-component signal.

Abstract: An internal CPU, a vibration control equalizer for processing an output signal of a vibration detector for detecting vibration of an imaging apparatus and calculating a vibration signal for determining a driving amount for an optical component on the basis of vibration of the imaging apparatus, a position control equalizer for calculating a position signal for determining a driving amount for the optical component on the basis of position of the optical component, and a control switching section for switching between the internal CPU and an external control circuit for the imaging apparatus for control of the vibration control equalizer and the position control equalizer.

Abstract: A program processing device comprises a CPU for carrying out predetermined processing according to a program; an internal memory storing the program and data generated by the CPU by carrying out the program, and a data acquiring circuit connected to an external program processing device, for acquiring the program from the external program processing device to write into the internal memory, wherein the CPU, the internal memory, a debug processing circuit, and the data acquiring circuit are integrally mounted on the same semiconductor substrate.

Abstract: A yarn in the form of a supply package in which the yarn is wound on a bobbin is continuously washed with an aqueous washing liquid by standing the yarn supply package upright in means for receiving the yarn package and an aqueous washing liquid, and continuously drawing off the yarn upward from the package while bringing the aqueous washing liquid into contact with the outer surface of the package. The contact of the outer surface of the package with the washing liquid is effected by immersing the package in the washing liquid bath or by flowing the washing liquid down over the outer surface of the package.

Abstract: A method for winding a continuous fabric on a cylinder together with a wrapping cloth in which, as a preparatory step for carrying out the decatizing treatment of fabric, a press roller always urges the surface layer of the rolled fabric toward the axis of the cylinder, during the winding operation. The contact pressure of the press roller is gradually increased under a controlled condition so that the binding force created by an outer layer of fabric toward an adjacently inner layer of fabric can be maintained in a substantially uniform condition. To increase the contact pressure of the press roller, a pressure control device is applied to the winding apparatus.