Abstract: The present invention relates to a lock-up clutch of a torque converter. A cover (10) is separated to a pilot (48) and includes an opening (10-1) for installing the pilot (48). Before assembling a clutch driving portion such as a piston, a separator, drive plates, a seal ring, and driven plates, to the pilot (48), rivets (53) are press-fitted into the pilot (48), the cover (10) is abutted to respective head portions of the rivets (53), and the pilot (48) is installed in the cover (10) and is fixed to the cover (10) by welding. Thereafter, the piston, the drive plates and the driven plates are disposed between the separator and the cover (10), the seal ring is contact with the separator, the separator is press-fitted into projection ends of the rivets (53), and then projection portions (53-2) of the rivets (53) are crimped.

Abstract: A receiving device, includes a memory; and a processor coupled to the memory and configured to: when amplifying a multi-valued signal of a multi-valued modulation technique according to a control signal, acquire a first multi-valued signal before amplifying the multi-valued signal and a second multi-valued signal after amplifying the multi-valued signal, detect a first peak voltage of the first multi-valued signal, detect a second peak voltage of the second multi-valued signal, and control the control signal based on the first peak voltage and the second peak voltage such that a maximum amplitude of the second multi-valued signal and linearity of the second multi-valued signal are maintained.

Abstract: The present invention relates to a lock-up clutch of a torque converter. A cover (10) is separated to a pilot (48) and includes an opening (10-1) for installing the pilot (48). Before assembling a clutch driving portion such as a piston, a separator, drive plates, a seal ring, and driven plates, to the pilot (48), rivets (53) are press-fitted into the pilot (48), the cover (10) is abutted to respective head portions of the rivets (53), and the pilot (48) is installed in the cover (10) and is fixed to the cover (10) by welding. Thereafter, the piston, the drive plates and the driven plates are disposed between the separator and the cover (10), the seal ring is contact with the separator, the separator is press-fitted into projection ends of the rivets (53), and then projection portions (53-2) of the rivets (53) are crimped.

Abstract: An optical transmitter includes an optical modulator that includes a first phase shifter for a most significant bit, a second phase shifter for a least significant bit, and a third phase shifter for fine adjustment, the first phase shifter, the second phase shifter, and the third phase shifter are disposed along an optical waveguide, and a drive circuit that includes a first driver that drives the first phase shifter, a second driver that drives the second phase shifter, and a third driver that drives the third phase shifter, wherein a drive polarity of the third driver is adjustable in a positive direction and a negative direction, and the third phase shifter adjusts an amount of phase change of the optical modulator in a positive direction or a negative direction based on a drive voltage inputted from the third driver.

Abstract: A laser diode control circuit includes, a control signal supply circuit that supplies a control signal including a direct current component and an alternating current component to a laser diode, an optical output signal acquisition circuit that acquires an optical output signal indicating an optical output of the laser diode according to the control signal, a phase determination circuit that determines whether a phase of the alternating current component included in the optical output signal is the same as the phase of the alternating current component included in the control signal, and a control signal determination circuit that determines to decrease the direct current component of the control signal when it is determined that the phase of the alternating current component included in the optical output signal is not the same as the phase of the alternating current component included in the control signal.

Abstract: A control apparatus includes a control signal generation unit which generates a control signal Sct, a transmission unit, and a communication switch. The transmission unit transmits a transmit signal St including the control signal Sct to a control target via wireless communication. The communication switch has a first communication disabled state and a communication enabled state, makes a transition from the first communication disabled state to the communication enabled state by a maneuver from outside, and returns to the first communication disabled state when released from the maneuver. Also, the communication switch enables wireless communication by the transmission unit during a period of being kept in the communication enabled state and disables wireless communication by the transmission unit during a period of being kept in the first communication disabled state.

Abstract: An optical transmitter includes an optical modulator that includes a first phase shifter for a most significant bit, a second phase shifter for a least significant bit, and a third phase shifter for fine adjustment, the first phase shifter, the second phase shifter, and the third phase shifter are disposed along an optical waveguide, and a drive circuit that includes a first driver that drives the first phase shifter, a second driver that drives the second phase shifter, and a third driver that drives the third phase shifter, wherein a drive polarity of the third driver is adjustable in a positive direction and a negative direction, and the third phase shifter adjusts an amount of phase change of the optical modulator in a positive direction or a negative direction based on a drive voltage inputted from the third driver.

Abstract: A control apparatus includes a control signal generation unit which generates a control signal Sct, a transmission unit, and a communication switch. The transmission unit transmits a transmit signal St including the control signal Sct to a control target via wireless communication. The communication switch has a first communication disabled state and a communication enabled state, makes a transition from the first communication disabled state to the communication enabled state by a maneuver from outside, and returns to the first communication disabled state when released from the maneuver. Also, the communication switch enables wireless communication by the transmission unit during a period of being kept in the communication enabled state and disables wireless communication by the transmission unit during a period of being kept in the first communication disabled state.

Abstract: A method of measuring linearity characteristics of a delay line may be provided. The method may include generating an output signal from a receiver including a delay line. The method may also include measuring linearity characteristics of the delay line based on a target performance parameter of the output signal.

Abstract: A circuit board includes: a first surface and a second surface opposite to the first surface; a through hole extending between the first surface and the second surface; a conductor covering an inner wall surface of the through hole, a first end and a second end of the conductor being terminated inside the through hole; and a wire connected to the conductor, wherein a sum of a length from a contact portion where the conductor contacts a connector pin inserted in the through hole to the first end of the conductor, and a length from a wire connecting portion where the conductor is connected to the wire to the second end of the conductor is 0.5 mm or less.

Abstract: A circuit board includes: a first surface and a second surface opposite to the first surface; a through hole extending between the first surface and the second surface; a conductor covering an inner wall surface of the through hole, a first end and a second end of the conductor being terminated inside the through hole; and a wire connected to the conductor, wherein a sum of a length from a contact portion where the conductor contacts a connector pin inserted in the through hole to the first end of the conductor, and a length from a wire connecting portion where the conductor is connected to the wire to the second end of the conductor is 0.5 mm or less.

Abstract: An optical waveguide substrate includes: a substrate body in which an optical waveguide is formed; a cable holding part configured to have a cable holding hole into which a signal cable is inserted, the signal cable having one of an incidence part and an emission part that is arranged so as to face the optical waveguide and having a first magnetic part; and a second magnetic part configured to generate a repulsive force in the cable holding hole in association with the first magnetic part.

Abstract: An electronic device includes a board including an electronic component, a plurality of optical interface units that include an optical element which input or output light and that are provided on the board, and a plurality of individual positioning units that position a plurality of respective optical waveguides which are separate from each other at least at tip portions on a side of the optical interface units and which are optically aligned with the optical element with respect to the optical interface units independently from each other.

Abstract: A memory includes a control layer that includes a first radio communication unit that performs radio communication and a control unit that controls the radio communication; and a memory layer that includes a second radio communication unit that performs the radio communication with the first radio communication unit and a first storage unit that stores information, the memory layer being provided on the control layer.

Abstract: A method for manufacturing an optical transmission device, includes: arranging a plurality of optical waveguides including waveguide mirrors, a transmission-side optical module and a reception-side optical module on one side of a substrate; photographing, with a photographic device, at least one waveguide mirror, and the transmission-side optical module or the reception-side optical module corresponding to the waveguide mirror, from another side of the substrate via an opening formed in the substrate; detecting optical-axis centers of the transmission-side optical module or optical-axis centers of the reception-side optical module, and central positions of reflective surfaces of the waveguide mirrors corresponding to the detected optical-axis centers, from a result of the photographing; and aligning and fixing a position relationship between the optical waveguides and the transmission-side optical module or the reception-side optical module based on a result of the detecting.

Abstract: A memory includes a control layer that includes a first radio communication unit that performs radio communication and a control unit that controls the radio communication; and a memory layer that includes a second radio communication unit that performs the radio communication with the first radio communication unit and a first storage unit that stores information, the memory layer being provided on the control layer.

Abstract: An optical waveguide substrate includes: a substrate body in which an optical waveguide is formed; a cable holding part configured to have a cable holding hole into which a signal cable is inserted, the signal cable having one of an incidence part and an emission part that is arranged so as to face the optical waveguide and having a first magnetic part; and a second magnetic part configured to generate a repulsive force in the cable holding hole in association with the first magnetic part.

Abstract: A method for manufacturing an optical transmission device, includes: arranging a plurality of optical waveguides including waveguide mirrors, a transmission-side optical module and a reception-side optical module on one side of a substrate; photographing, with a photographic device, at least one waveguide mirror, and the transmission-side optical module or the reception-side optical module corresponding to the waveguide mirror, from another side of the substrate via an opening formed in the substrate; detecting optical-axis centers of the transmission-side optical module or optical-axis centers of the reception-side optical module, and central positions of reflective surfaces of the waveguide mirrors corresponding to the detected optical-axis centers, from a result of the photographing; and aligning and fixing a position relationship between the optical waveguides and the transmission-side optical module or the reception-side optical module based on a result of the detecting.

Abstract: An electronic device includes a board including an electronic component, a plurality of optical interface units that include an optical element which input or output light and that are provided on the board, and a plurality of individual positioning units that position a plurality of respective optical waveguides which are separate from each other at least at tip portions on a side of the optical interface units and which are optically aligned with the optical element with respect to the optical interface units independently from each other.

Abstract: An available image area is recognized from information, including a read start position and a read end position of a document, a scaling for performing image processing, a processing object position, or the like. Subsequently, the number of chromatic pixels of one line is counted to output it to a memory, and when it is summed up to an end line of the available image area, a difference between a count number N1 in one previous line of the available image area and a count number N2 in the end line of the available image area is calculated to thereby compare the difference with a predetermined threshold value. When the difference is larger than the threshold, it is determined to be a chromatic image, whereas when the difference is smaller than the threshold, it is determined to be an achromatic image.