Abstract: An ionic wind delivery device includes a first discharge electrode; a reference electrode arranged separate from the first discharge electrode; a first power supply circuit configured to output a voltage to induce a corona discharge between the first discharge electrode and the reference electrode; a control electrode arranged on a delivery path of an ionic wind of ions that are generated by the corona discharge induced between the first discharge electrode and the reference electrode; a second discharge electrode arranged between the reference electrode and the control electrode; and a second power supply circuit configured to output a voltage to accelerate the ions generated by the corona discharge induced between the first discharge electrode and the reference electrode and to induce a corona discharge between the second discharge electrode and the control electrode.

Abstract: A jet flow generation device includes: a discharge electrode; a reference electrode that is disposed away from the discharge electrode; a power supply circuit that generates an output voltage to control a potential difference between the discharge electrode and the reference electrode; a controller that switches the output voltage of the power supply circuit between a first voltage that does not induce corona discharge between the discharge electrode and the reference electrode and a second voltage that induces corona discharge between the discharge electrode and the reference electrode; and a case housing at least the reference electrode has an injection port that injects an ion wind of ions generated by the corona discharge.

Abstract: An ionic wind delivery device includes a first discharge electrode; a reference electrode arranged separate from the first discharge electrode; a first power supply circuit configured to output a voltage to induce a corona discharge between the first discharge electrode and the reference electrode; a control electrode arranged on a delivery path of an ionic wind of ions that are generated by the corona discharge induced between the first discharge electrode and the reference electrode; a second discharge electrode arranged between the reference electrode and the control electrode; and a second power supply circuit configured to output a voltage to accelerate the ions generated by the corona discharge induced between the first discharge electrode and the reference electrode and to induce a corona discharge between the second discharge electrode and the control electrode.

Abstract: A jet flow generation device includes: a discharge electrode; a reference electrode that is disposed away from the discharge electrode; a power supply circuit that generates an output voltage to control a potential difference between the discharge electrode and the reference electrode; a controller that switches the output voltage of the power supply circuit between a first voltage that does not induce corona discharge between the discharge electrode and the reference electrode and a second voltage that induces corona discharge between the discharge electrode and the reference electrode; and a case housing at least the reference electrode has an injection port that injects an ion wind of ions generated by the corona discharge.

Abstract: A plasma processing apparatus includes an upper electrode arranged at a processing chamber and including a plurality of gas supplying zones, a branch pipe including a plurality of branch parts, an addition pipe connected to at least one of the branch parts, and a plurality of gas pipes that connect the branch parts to the gas supplying zones. The upper electrode supplies a processing gas including a main gas to the processing chamber via the gas supplying zones. The branch pipe divides the processing gas according to a predetermined flow rate ratio and supplies the divided processing gas to the gas supplying zones. The addition pipe adds an adjustment gas. A gas flow path of the gas pipe connected to the branch part to which the addition pipe is connected includes a bending portion for preventing a gas concentration variation according to an adjustment gas-to-main gas molecular weight ratio.

Abstract: A ringing suppression circuit for a communication circuit that performs communication through a transmission line includes a high side switch connected between a high potential reference point and a high side line of the transmission line, a low side switch connected between a low potential reference point and a low side line of the transmission line, and a ringing suppression section. The ringing suppression section turns on the high side switch based on a difference between a potential of the high side line and a potential applied to a control terminal of the high side switch. The ringing suppression section turns on the low side switch based on a difference between a potential of the low side line and a potential applied to a control terminal of the low side switch.

Abstract: A plasma processing apparatus includes an upper electrode arranged at a processing chamber and including a plurality of gas supplying zones, a branch pipe including a plurality of branch parts, an addition pipe connected to at least one of the branch parts, and a plurality of gas pipes that connect the branch parts to the gas supplying zones. The upper electrode supplies a processing gas including a main gas to the processing chamber via the gas supplying zones. The branch pipe divides the processing gas according to a predetermined flow rate ratio and supplies the divided processing gas to the gas supplying zones. The addition pipe adds an adjustment gas. A gas flow path of the gas pipe connected to the branch part to which the addition pipe is connected includes a bending portion for preventing a gas concentration variation according to an adjustment gas-to-main gas molecular weight ratio.

Abstract: A capacitive occupant detection apparatus comprising a sensor unit and a control unit is disclosed. The sensor unit includes a detection electrode and a periphery guard electrode. The control unit includes: a signal application circuit for applying an oscillation signal to the detection electrode; an operational amplifier for applying to the guard electrode a signal having the same phase and potential as the oscillation signal applied to the detection electrode; and a control circuit for receiving current and voltage values supplied to the detection and for determining a mounting state on a seat based on the inputted current and voltage values (including phase information). The periphery guard electrode is located to surround the detection electrode when viewed from an upper side of the detection electrode.

Abstract: When a transmission signal is detected as having been changed from a high level to a low level, two transmission lines are connected for only a predetermined time through a diode by a first transistor and a second transistor. The diode is arranged such that its forward direction is from a high-side transmission line to a low-side transmission line. The diode turns on, when a potential of the high-side transmission line becomes higher than that of the low-side transmission line by ringing and a potential difference therebetween exceeds a forward drop voltage of the diode. As a result, a peak wave level of a positive side in the ringing is limited to the forward drop voltage of the diode.

Abstract: An inter-line switching element formed of a MOSFET is provided between a pair of signal lines. When the level of a differential signal changes from high to low, a control circuit turns on the FET for a fixed period thereby to suppress ringing by decreasing the impedance between the signal lines when the level of the differential signal transitions, and causing the energy of the distortion of the differential signal waveform to be absorbed by the on-resistance of the FET.

Abstract: A capacitance type sensor includes a sensor body part having a first detection electrode and a second detection electrode, which are arranged to face a detection object. The first detection electrode and the second detection electrode are arranged in a partially overlapping manner to form an overlap section. An area size of the overlap section between the first detection electrode and the second detection electrode decreases when the sensor body part deforms from a pressure exerted onto the sensor body part, in comparison to the area size of the overlap section when the sensor body part is in a normal state without deformation.

Abstract: A ringing suppression circuit for a communication circuit that performs communication through a transmission line includes a high side switch connected between a high potential reference point and a high side line of the transmission line, a low side switch connected between a low potential reference point and a low side line of the transmission line, and a ringing suppression section. The ringing suppression section turns on the high side switch based on a difference between a potential of the high side line and a potential applied to a control terminal of the high side switch. The ringing suppression section turns on the low side switch based on a difference between a potential of the low side line and potential applied to a control terminal of the low side switch.

Abstract: A receiving device includes a receiving circuit and an impedance control circuit. The receiving circuit receives a signal transmitted through a communication line. The impedance control circuit is coupled with the receiving circuit and has a detecting part. The detecting part detects a physical value of the signal and the physical value includes at least one of a voltage, an electric current, and an electric power. The impedance control circuit changes an input impedance based on the detected value so that a ringing of the signal is reduced.

Abstract: A sensor detection controller is used in combination with a capacitive sensor that is mounted on a seat of a vehicle in such a manner that a capacitance of the capacitive sensor changes according to whether the seat is occupied. The sensor detection controller has a fault detection mode and a normal detection mode. The sensor detection controller includes a signal source for applying an amplitude signal to the capacitive sensor, a switch for switching a signal path, through which the amplitude signal is applied, between the fault detection mode and the normal detection mode, a signal detector for detecting a change in a voltage or a current of the amplitude signal when the amplitude signal is applied, and an impedance member connected to the signal path.

Abstract: In a transmission device for differential communication, a first cathode-side element part is coupled between a first communication line and a cathode-side power supply line, a second cathode-side element part is coupled between a second communication line and the cathode-side power supply line, a first anode-side element part is coupled between the first communication line and an anode-side power supply line, and a second anode-side element part is coupled between the second communication line and the anode-side power supply line. A driving portion drives the element parts based on transmission data input from an outside. A target potential generating portion generates target potentials of the element parts based on potentials of the first communication line and the second communication line.

Abstract: An inter-line switching element formed of a MOSFET is provided between a pair of signal lines. When the level of a differential signal changes from high to low, a control circuit turns on the FET for a fixed period thereby to suppress ringing by decreasing the impedance between the signal lines when the level of the differential signal transitions, and causing the energy of the distortion of the differential signal waveform to be absorbed by the on-resistance of the FET.

Abstract: A signal receiver includes: a receiving circuit that receives a differential signal via a transmission line, which includes a pair of signal wires for transmitting the differential signal; and an impedance control circuit that controls an input impedance so as to reduce a common mode noise. The impedance control circuit includes a detection element for detecting at least one of a voltage, a current and an electric power of the common mode noise. The impedance control circuit controls the input impedance in accordance with change of the at least one of the voltages the current and the electric power of the common mode noise.

Abstract: A capacitive occupant detection apparatus comprising a sensor unit and a control unit is disclosed. The sensor unit includes a detection electrode and a periphery guard electrode. The control unit includes: a signal application circuit for applying an oscillation signal to the detection electrode; an operational amplifier for applying to the guard electrode a signal having the same phase and potential as the oscillation signal applied to the detection electrode; and a control circuit for receiving current and voltage values supplied to the detection and for determining a mounting state on a seat based on the inputted current and voltage values (including phase information). The periphery guard electrode is located to surround the detection electrode when viewed from an upper side of the detection electrode.

Abstract: A receiving device is provided capable of avoiding reception of unnecessary energy when a signal waveform actually changes on a receiving side. An impedance control circuit includes a sensing unit to sense one or more of a voltage, current, or power of a signal to be received by a receiving circuit. The impedance control unit varies an input impedance according to the change in the sensed one or more quantities so that the received signal will be reflected. Thus the excess energy of the signal is reflected and fed to any other receiving circuit achieving stable communications.

Abstract: A sensor detection controller is used in combination with a capacitive sensor that is mounted on a seat of a vehicle in such a manner that a capacitance of the capacitive sensor changes according to whether the seat is occupied. The sensor detection controller has a fault detection mode and a normal detection mode. The sensor detection controller includes a signal source for applying an amplitude signal to the capacitive sensor, a switch for switching a signal path, through which the amplitude signal is applied, between the fault detection mode and the normal detection mode, a signal detector for detecting a change in a voltage or a current of the amplitude signal when the amplitude signal is applied, and an impedance member connected to the signal path.