3results about How to "Improve sensing sensitivity" patented technology

A depth pixel of a time-of-flight (ToF) sensor includes a common photogate disposed in a central region of the depth pixel, a plurality of floating diffusion regions disposed in a peripheral region surrounding the central region, a plurality of demodulation transfer gates disposed in the peripheral region, and a plurality of overflow gates disposed in the peripheral region. The demodulation transfer gates transfer photocharge collected by the common photogate to the plurality of floating diffusion regions. The demodulation transfer gates are symmetric about each of a horizontal line and a vertical line passing through a center of the depth pixel and substantially perpendicular to each other. The overflow gates drain the photocharge collected by the common photogate and are symmetric about each of the horizontal line and the vertical line.

This application discloses a host structure and a smartwatch. The host structure includes a housing, a display screen, and a bottom cover. A cavity is formed between the display screen and the bottom cover, and an NFC component, a circuit board, and a battery are housed within the cavity. The NFC component is attached to the inner surface of the display screen. The circuit board is located below the NFC component and has a multi-layered mesh-like hollow structure. The battery is partially embedded within the hollow structure, forming a three-dimensional interlocking layout. The bottom cover has an independently operable SIM card cover. This application arranges the NFC component close to the inner surface of the display screen, and the circuit board uses a multi-layered hollow structure to form a three-dimensional interlocking with the battery, significantly improving space utilization. The independent SIM card cover on the bottom cover maintains the device's airtightness and simplifies SIM card replacement.

This invention provides an oscillator circuit and a long-distance detection sensing device, including a push-pull amplifier circuit, an inductive resonant circuit, a rectifier protection circuit, and a signal adjustment circuit. The inductive resonant circuit generates an alternating magnetic field to produce an oscillation signal. The push-pull amplifier circuit includes a first transistor and a second transistor to amplify the oscillation signal. The rectifier protection circuit and the signal adjustment circuit are used to protect the circuit and adjust the oscillation signal, respectively. This circuit improves the sensing sensitivity to external metal, achieving long-distance detection and solving the problem of insufficient sensing distance in existing proximity switches.