Unity Opto Technology Co., Ltd.

Digibionic Lifestyle Co., Ltd.

Chih-Hsien Wu

Wei Chang

Kai-Cheng Chuang

Huan-Ying Lu

Sen-Yuh Tsai

Shao-Wei Chiu

Po-Wen Hsiao

Han-Chi Chi

Ching-Huei Wu

Shih-Chao Shen

Yu-Chang Chen

Chun-Chieh Huang

Yi-Shu Chen

Hsin-Chieh Liao

Che-Hao Kuo

Ching-Li Chou

Cheng-Han Hung

Yu-Hsun Lin

Fu Jie Tey

Chun-Chieh Kuo

Kuo-Tien Cheng

Sheng-Wei Chen

Szu-Chien Chen

Yu-Hsien He

Jia-Hao Siao

Meng-Chieh Chou

Chung-Yu Wang

Ching-Ping Tseng

Thung-Wei Lin

Shih-Hsun Chang

Hsi-Yu Chen

Disclosed is an assistive listening system, which is designed to provide a prescription-adjusted signal to an audio output device to compensate for hearing impairment. The system includes a sound sensor, a digital signal processor, and a wireless transceiver. The sound sensor used to detect ambient background noise to generate a sensing signal. The digital signal processor receives the sensing signal to generate a prescription-adjusted signal. The wireless transceiver transmits the prescription-adjusted signal to the audio output device. When the ambient background noise changes, the sound sensor can generate the sensing signal in real-time, and the digital signal processor can generate and transmit the prescription-adjusted signal to the audio output device. Therefore, the user can enjoy optimized sound quality conveniently without manually adjusting the audio output device.

Assistive listening system

A cloud-based hearing aid management system and a method thereof is provided. The system includes a user device configured to output audiometry information and generate an audiogram based on a user's input indicating that if the audiometry information can be heard. The user device transmits the audiogram to a management server, such that the audiogram is converted into a hearing parameter, and hearing-loss characteristic value are extracted from the audiogram. The management server incorporates the hearing-loss characteristic value into a hearing aid recommendation table to generate corresponding hearing aid recommendation information. The present invention can recommend a hearing aid suitable for the user by operating a remote computer. In addition, the fitting staff adjusts the sound producing parameters of the hearing aid according to the user's requirement, which provides a convenient new consumption method.

Cloud-based hearing aid management system and method thereof

A flicker-free linear LED drive circuit is disclosed. The flicker-free linear LED drive circuit converts the input voltage of the external power supply to form an output current to the LED. The flicker-free linear LED drive circuit includes a measuring module, a regulating module and a rectifier module. The flicker-free linear LED drive circuit is characterized in that the measuring module is configured to measure the phase angle of the input voltage after full-wave rectification; the regulating module is used to form the complex voltage signal according to the measurement signal in the voltage waveform of the regulating module for the half-wave period, the conduction angle range formed at the fixed power is used as the basis for electrical conduction in the half-wave period of the input voltage.

Flicker-free linear LED drive circuit

A high-voltage linear drive and memory dimming LED lighting device is disclosed. The lighting device includes a high voltage linear constant current circuit, a control IC, a first LED string and a second LED string. The control IC is electrically connected to the high voltage linear constant current circuit, and the control IC is directly driven by receiving high voltage signals. Wherein, the control IC includes a voltage regulator module, a switching module and a memory module. The voltage regulator module is electrically connected to the high voltage linear constant current circuit; the switching module is electrically connected to the voltage regulator module and includes at least two electronic switches; and the memory module is electrically connected to the switching module.

High-voltage linear drive and memory dimming LED lighting device

Disclosed are a light-emitting device for digital control of color temperature modulation and its application. The light-emitting device is electrically connected to a wall switch and includes a DIP switch, first LEDs, second LEDs and a control module. The control module is electrically connected to the above components and contains a truth table. The truth table includes at least a first mode, second mode, third mode and a memory and automatically switch mode, and a digital switching is accomplished by correlating the DIP switch to the truth table. In the memory and automatically switch mode, the first to third mode color temperatures are sequentially switched and controlled by turning on or off the wall switch according to the truth table information. The light-emitting device may be applied to light fixtures or mirror products to improve the convenience of use.

Light-emitting device with digital control of color temperature modulation and application thereof

Disclosed are an LED light emitting device and its manufacturing method. A blue LED chip specification is selected, a green phosphor and the blue LED chip are used to determine a green light frame on the CIE1931 chromaticity coordinates and a red phosphor together with a blue LED chip are used to determine a red light frame on the CIE1931 chromaticity coordinates, and a predetermined straight line passing through the color temperature target frame is selected, and both end points of the predetermined straight line fall within the green light frame and the red light frame, so as to determine the concentration of the green phosphor and the red phosphor, and the green and red phosphors and a blue LED chip are packaged to form a first LED and a second LED, and at least one first LED and at least one second LED are installed on a substrate.

Manufacturing method of LED light emitting device

A flicker-free dimming circuit for non-point light source has a TRIAC module, an input module, a conversion module and an output module. The TRIAC module adjusts the voltage phase of an external power supply for the input module to export an input voltage, and the conversion module in a boost circuit structure is provided with a conversion coil and a converter to receive and raise the voltage value of the input voltage to a voltage value of an operating voltage and then supplies the operating voltage to the output module. The output module adopts a fly-back circuit structure and induces the operating voltage to form a driving voltage in a constant value and then outputs the driving voltage to a lamp with a relatively wide light source area. In this way, the panel lamp can meet high safety standards and enhance its product adaptability and competiveness.

Flicker-free dimming circuit for non-point light source

Disclosed is an LED lamp having a tube and two end covers. The end covers are connected to both sides of the tube for accommodating a power supply member or a power conversion member, and the end covers have a first penetrating hole for engaging a connecting member to hang or install the LED lamp. The LED lamp further includes at least one back plate having at least two first locking holes, and each end cover has at least one second locking hole corresponsive to the first locking holes. At least two latching members pass through the first locking hole and the second locking hole to connect the back plate and the end cover and the back plate is situated on a side of the tube, so that the back plate is connected closely with the end cover and will not be separated easily by external forces or collisions.

LED lamp

LED bulb lamp cover

An LED spherical lamp includes a base, a power supply unit, a substrate and a cover. The power supply unit is installed inside the base, and the substrate has plural LED light emitting elements and is coupled to a side of the base, and the cover is fixed to the base for covering the substrate. The LED spherical lamp includes an electrical connector installed to the substrate and having a plurality of electrical terminals for electrically connecting the substrate to the power supply unit, and an engaging slot is concavely formed on a side of the electrical connector, such that the power supply unit drives the LED light emitting elements to achieve the lighting effect. The LED spherical lamp has the effects of simplifying the assembling and manufacturing procedure, assuring the electrical conduction of components, and facilitating the maintenance, repair, and replacement of the components.

LED spherical lamp

A secondary-side bucking and current-stabilizing flyback power converter adopts a dual-stage isolated circuit architecture and outputs a constant output current to drive a low-power LED module, and its primary stage adopts a flyback circuit architecture with a primary regulated voltage, and its secondary stage adopts of a buck circuit architecture of the current stabilizer, so that after the primary stage converts the constant voltage, the current stabilizer senses the load effect of the output current at the LED module to regulate the output cycle and maintain the total output of the output current constant and reduce the ripple amplitude, so as to achieve a non-strobe output result and improve the illumination effect of the LED module.

Secondary-side bucking and current-stabilizing flyback power converter

An axially symmetric LED light bulb includes a lamp shade, a substrate and a connecting seat. The substrate installed on the connecting seat includes plural LED light sources. The lamp shade has an edge connected to the connecting seat, and the substrate is covered inside the lamp shade. The lamp shade has an unequal thickness with a thicker top and thinner sides. The axially symmetric LED light bulb provides excellent light uniformity and wide-angle illumination.

Axially symmetric LED light bulb

A linear dimming LED driver circuit capable of adjusting color temperature used in a lamp of a down light or a tube light to drive a plurality of LED strings to emit light and the LED strings are formed by yellow-light and ultra blue LEDs. The circuit uses a switch to switch the conduction of the LED strings to change the color temperature of the light emission of the lamp, so that the control module will adjust the light emitting brightness of the lamp for better dimming range and work performance of the whole circuit if a driving voltage is in a mono sinusoidal voltage section greater than or equal to 129 volts and smaller than or equal to 135 volts.

Linear dimming LED driver circuit capable of adjusting color temperature

A self-excited TRIAC dimming circuit applied in a panel light includes a dimming module and at least one conversion module, and a power factor controller (PFC) is installed in the dimming module, and the conversion module is a self-excited electronic isolation transformer, and the TRIAC PFC is integrated with the circuit structure of a self-excited electronic transformer to improve the overall circuit stability, so that the panel light complies with a high safety standard to enhance product applicability and competitiveness.

Growing community of inventors

Taipei, Taiwan

Chih-Hsien Wu