A method for operating a hydraulic valve of a hydraulic device of a motor vehicle transmission device, wherein an actuating current of the hydraulic valve is superposed with a modulation alternating current in order to adjust a shaking vibration of the hydraulic valve by a control device, wherein a deviation between an actual pressure resulting from the actuating current and a setpoint pressure determined as a function of the actuating current is determined for the hydraulic device by means of an electronic computing device, and an amplitude and/or a frequency of the modulation alternating current is increased as compared to a starting value equalizing a hysteresis of the actual pressure relative to the setpoint pressure, as a function of a tolerance range being exceeded by the determined deviation.

A method for operating a hydraulic valve of a hydraulic device of a motor vehicle transmission device, wherein an actuating current of the hydraulic valve is superposed with a modulation alternating current in order to adjust a shaking vibration of the hydraulic valve by a control device, wherein a deviation between an actual pressure resulting from the actuating current and a setpoint pressure determined as a function of the actuating current is determined for the hydraulic device by means of an electronic computing device, and an amplitude and/or a frequency of the modulation alternating current is increased as compared to a starting value equalizing a hysteresis of the actual pressure relative to the setpoint pressure, as a function of a tolerance range being exceeded by the determined deviation.

Provided is an electronic device. The electronic device includes a motor, a memory configured to store at least one of first frequency information associated with a sound that is generated when the motor is driven or second frequency information associated with a surrounding environment of the electronic device, and a processor configured to control the motor to be driven by avoiding a driving speed corresponding to the frequency information stored in the memory.

Provided is an electronic device. The electronic device includes a motor, a memory configured to store at least one of first frequency information associated with a sound that is generated when the motor is driven or second frequency information associated with a surrounding environment of the electronic device, and a processor configured to control the motor to be driven by avoiding a driving speed corresponding to the frequency information stored in the memory.

The invention discloses an active vibration or sound absorption method with virtual resonators exclusively using sensing electromagnetic coil's current and voltage. The invention includes an absorption actuator, a sensing module of coil's current and voltage, an absorption controller, and a driving module. The method controls the coil current's phase to be orthogonal to the actuator velocity's phase, to adjust the resonant frequency of the actuator, such that the signal to be absorbed causes a resonance in the actuator. In this way, a virtual resonator is formed. Moreover, one actuator can generate multiple virtual resonators simultaneously to absorb energy of multiple signals with different frequencies, and the resonant frequency and its damping ratio for each virtual resonator can be adjusted independently.

A fan control system applied to N fans inside a computer system is disclosed, comprising: a main microphone, a control circuitry, a wave generation circuitry and a number N of fan controllers. The control circuitry calculates a basic frequency value according to a temperature inside the computer system, and continuously updates a parameter by any known optimization algorithm according to a main audio signal from the main microphone. The wave generation circuitry generates N square waves according to the basic frequency value and the parameter. The N fan controllers respectively form and transmit N modulation signals to the N fans according to the N square waves and N tachometric signals from the N fans. The parameter is one of a frequency variation and a set of phase differences, and the N square waves have the same frequency.

A fan control system applied to N fans inside a computer system is disclosed, comprising: a main microphone, a control circuitry, a wave generation circuitry and a number N of fan controllers. The control circuitry calculates a basic frequency value according to a temperature inside the computer system, and continuously updates a parameter by any known optimization algorithm according to a main audio signal from the main microphone. The wave generation circuitry generates N square waves according to the basic frequency value and the parameter. The N fan controllers respectively form and transmit N modulation signals to the N fans according to the N square waves and N tachometric signals from the N fans. The parameter is one of a frequency variation and a set of phase differences, and the N square waves have the same frequency.

A system is disclosed. The system has an accessory control module, comprising computer-executable code stored in non-volatile memory, a processor, a user device of a human viewer, a viewer accessory configured to communicate with the user device, the viewer accessory including a first motor or a first heater, a model device of a human model, and a model accessory configured to communicate with the model device, the model accessory including a second motor or a second heater. The accessory control module, the processor, the user device, the viewer accessory, the model device, and the model accessory are configured to provide a chat communication application between the human viewer and the human model configured to provide chat between the human viewer via the user device and the human model via the model device.

A system is disclosed. The system has an accessory control module, comprising computer-executable code stored in non-volatile memory, a processor, a user device of a human viewer, a viewer accessory configured to communicate with the user device, the viewer accessory including a first motor or a first heater, a model device of a human model, and a model accessory configured to communicate with the model device, the model accessory including a second motor or a second heater. The accessory control module, the processor, the user device, the viewer accessory, the model device, and the model accessory are configured to provide a chat communication application between the human viewer and the human model configured to provide chat between the human viewer via the user device and the human model via the model device.

A reaction compensation device includes a drive mechanism driving a first movable part with respect to a base, a reaction mass drive mechanism driving a second movable part with respect to the base; and a first relative position sensor measuring a relative position between the first movable part and the base. There is also a second relative position sensor measuring a relative position between the second movable part and the base, a first control system controlling the drive mechanism by taking in a signal outputted from the first relative position sensor as a feedback signal in response to a command value, and a second control system correcting the command value using a correction parameter for adjusting a difference between mass properties of the drive mechanism and reaction mass drive mechanism and for controlling the reaction mass drive mechanism.