Hong-Fu Jin Precision Industry (Shenzhen) Co., Ltd.

Hon Hai Precision Industry Co., Ltd.

Ensky Technology Co., Ltd.

Ensky Technology (Shenzhen) Co., Ltd.

Shi-Quan Lin

Han-Che Wang

Kuan-hong Hsieh

Shin-Hong Chung

Bin-Gang Duan

Kuan-Hong Hsieh

Xiao-Guang Li

Xin Zhao

Te-Hua Lee

An audio compensation unit includes a detection subunit and a compensation subunit. The detection subunit is for detecting an audio signal to obtain an original frequency. The detection subunit defines a predetermined low frequency band and a predetermined high frequency band. The detection subunit is also for generating a first control signal when the original frequency is within the low frequency band, and a second control signal when the original frequency is within the high frequency band. The compensation subunit includes an electronic switch, a first compensation circuit, and a second compensation circuit. The electronic switch enables the first compensation circuit according to the first control signal, for compensating the audio signal. The electronic switch is further enables the second compensation circuit according to the second control signal, for compensating the audio signal.

Audio compensation unit and compensating method and audio processing device thereof

A speaker system includes an enclosure defining a resonance chamber, a loudspeaker received in the resonance chamber, and a sound wave reflecting member. The enclosure includes a front panel and a base. The loudspeaker is exposed at the front panel. The base includes a back panel facing the front panel, an inner tube, and an outer tube. The back panel defines a back bass port. The inner tube and the outer tube extend from the back panel and are received in the resonance chamber. The inner tube surrounds the back bass port. The outer tube surrounds the inner tube. The sound wave reflecting member is coupled with the outer tube and the inner tube. The sound wave reflecting member, the outer tube, and the inner tube cooperatively form a resonator. The resonator communicates with the resonance chamber and the back bass port.

Speaker system with subwoofer

An input device includes a power unit, a power switch unit, a processing unit, and an input unit. The power switch unit includes a first switch for supplying power to the processing unit when actuated; the input unit is connected with the processing unit and the power switch unit and is configured for generating input signals that is transmitted to the processing unit and further used for controlling the first switch; and the processing unit is configured for receiving the input signal from the input unit, keeping the first switch switched on during a time period, and performing a task corresponding to the input signal during the time period.

Input device

A capacitive touch switch and control device is provided. The capacitive touch switch and control device in one embodiment includes one or more capacitive sensor elements, one or more resistors, a capacitor, a capacitance/frequency converter, and an antenna including a positive branch and a negative branch. The positive branch and the negative branch synchronously and correspondingly receive a pair of signals from the microprocessor, the pair of signals each undergoing a 180 degree phase shift relative to the other, for shielding the noise acted on the capacitive sensor elements. When any of the capacitive sensor elements is touched, the capacitance/frequency converter outputs a frequency signal to the microprocessor, the microprocessor outputs a control signal that corresponds to the frequency signal to an electronic device to trigger corresponding operations of the electronic device.

Capacitive touch switch and control device

A touch sensing apparatus includes: a differential signal source for generating two alternating current signals with same frequency and reverse phase; two conductors connected to a cathode output end and an anode output end of the differential signal source; a sensor for receiving a noise generated by a contact of an object; wherein the sensor and the two conductors form two simulated capacitors that result in offsetting environmental noise; a detector having a first input end and a second input end, the detector upon receiving the noise transferred from the sensor resulting in voltage differences between the first and second input ends thereof, and outputting a signal; and a rectifying circuit for rectifying the alternating current signals generated by the differential signal source and simultaneously generating a noise.

Touch sensing apparatus

A touch sensing apparatus is provided. The apparatus includes a flip-flop (), a sensor (), an AC signal (), and a detector (). The AC signal supplies AC signals to the flip-flop. The flip-flop outputs a first output signal at the output of flip-flop when the sensor is not touched. The sensor receives electricity signals from the object, and causes a delay of the AC signal inputted to the first input of the flip-flop, the delay of the AC signal to be inputted to the first input of the flip-flop further causes the flip-flop to output a second output signal at the output of the flip-flop. The detector detects a change from the first output signal to the second output signal at the output of the flip-flop and accordingly identifies a touch on the sensor.

Touch sensing apparatus using varying signal delay input to a flip-flop

A preferred embodiment of the touch sensing apparatus includes one or more touch sensing units, a detector, and a signal processing unit. Each touch sensing unit comprises: a differential signal source for generating two signals which have a same frequency but reverse phases; and two sensors for receiving a touch signal of a user's finger. One sensor is connected to an anode of the differential signal source, and the other sensor is connected to a cathode of the differential signal source. The detector is for converting the received signal into a digital signal. An input terminal of the detector is connected to the sensors of each touch sensing unit. The signal processing unit is for determining which sensor is touched according to the frequency and phase of the signal output from the detector. The signal processing unit is connected to an output terminal of the detector. The touch sensing unit may further include a reference signal circuit.

Touch sensing apparatus with differential signal source

A touch sensing apparatus includes a signal source for generating an alternating current signal, a conductor connected to the signal source, a sensor for receiving a noise generated by a contact of an object. The sensor together with the conductor form a simulated capacitor that results in alternating current signal flowing through the sensor when the sensor is contacted by the object. A detector has a first input end and a second input end. The detector results in voltage differences between the first and second input ends thereof when receiving the alternating current signal output from the sensor, and thus output a signal. A rectifying circuit is used for rectifying the alternating current signal generated by the signal source and simultaneously generating a noise. One end of the rectifier circuit is connected to the signal source and other end of the rectifier circuit is connected to the negative power input end of the detector.

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Shenzhen, China

Shi-Quan Lin