Vishay Semiconductor Gmbh

Capella Microsystems (taiwan), Inc.

Other

Cheng Chieh Huang

Yu Hao Kao

Jinn-Ann Kuo

Wei Chien Wang

Koon-Wing Tsang

Ting Yen Huang

Cheng Hsiang Huang

Devices, methods, and systems for detecting proximity. A first light emitter emits light for a first time period while a light detector is not sensing. A second light emitter emits light for a second time period while the light detector is sensing. In some implementations, the first light emitter directly illuminates the light detector during the first time period, whereas the second light emitter is obstructed from directly illuminating the light detector during the second time period. In some implementations, the first light emitter is obstructed from illuminating a display during the first time period, and the second light emitter is obstructed from directly illuminating the light detector during the second time period. In some implementations, the first light emitter emits the light during the first time period such that the light detector maintains a linear responsivity during the second time period.

Proximity sensor

A display device and a method for operating a display device disclosed herein include transmitting a proximity signal from a proximity sensor, the proximity sensor being positioned under a lower surface of a surface layer with an illumination component being positioned between the surface layer and the proximity sensor, in response to the illumination component being deactivated, receiving a reflected proximity signal based on the proximity signal, determining a proximity value based on the reflected proximity signal and modifying an operation of the display device based on the proximity value. The modifying the operation of the display device includes any one or a combination of activating the illumination component, deactivating the illumination component, or modifying a property of the illumination component.

Under display sensors, systems and methods

Techniques, devices, and systems disclosed herein include detecting a vertical synchronization (VSYNC) signal cycle, determining a high frequency trigger pulse based on detecting an illumination component's pulse width modulation (PWM) signal, the high frequency trigger pulse corresponding to the illumination component's deactivation times, receiving a delay time period and activating a first sensor, at a first time, within the VSYNC signal cycle, the first time determined based on the high frequency trigger pulse and the delay time period. The first sensor may sense a first sensor reading and may be deactivated after being activated. A display setting may be adjusted based at least on the first sensor reading and the illumination component may be activated after the first sensor is deactivated.

A gravity-assisted rotational mechanism and a generator device cooperating therewith. The gravity-assisted rotational mechanism includes multiple concentric rotational members having different sizes and rotatable about the same rotational center, several link members having equal weights for driving the same, and at least one connection member for pivotally connecting the rotational members with the link members. The rotational members can symmetrically push/pull each other. The link members and connection member are respectively mounted on interference sections of at least some of the rotational members to absorb gravitational energy. The energy of the link members is transmitted via the interference sections to the rotational members to form a cycle of energy storage and transmission. The generator device serves to convert the gravitational energy and minimize the rotational inertia loss and increase yield rate of electrical energy.

Gravity-assisted rotational mechanism and generator device cooperating therewith

The present invention discloses a photosensitive circuit comprising a photosensitivity unit, a capacitance and a switch unit. The photosensitivity unit is capable of receiving a received light, and the capacitance is capable of storing a photoelectric current corresponding to the received light. The switch unit is used to respectively provide the positive voltage of the capacitance to a comparison unit at a first time period, and the negative voltage of the capacitance to a comparison unit at a second time period. The comparison unit outputs a detection value according to the positive voltage and the negative voltage of the capacitance, the detection value is related to the distance between an object and the photosensitive circuit. The present invention further disclose a photosensitive chip to drive a luminescent unit to provide a detective light. The photosensitive chip comprises a sampling clock generator, the ambient light sensor unit, a proximity sensor unit and a driving clock generator.

Photo sensing method with a variation of received light calculated based on a difference between positive and negative voltages of a capacitance

Photosensitive circuit for detecting an object having a switch unit respectively providing positive voltage and negative voltage of a capacitance to a comparison unit at a first and a second time period

Growing community of inventors

Taipei, Taiwan

Cheng Chieh Huang