Shenzhen Goodix Technology Co., Ltd.

Shenzhen Huiding Technology Co., Ltd.

Meng-Ta Yang

Chung-te Li

Yu-An Liang

Jun Fang

Siqiu Cheng

Zirong Li

Hao-jen Wang

Xinchang Wu

Ming-ju Sung

Tzu-Li Hung

Kuo-Hao Chao

A time-of-flight distance measuring method and TOF distance measuring system. The distance measuring method includes: intermittently transmitting a plurality of pulses from a pulse generation unit; controlling a TOF sensor to allow each pixel of a plurality of pixels in the TOF sensor to continuously perform a first signal sampling first proportion for a first predetermined time on a first proportion of a plurality of reflected signals and performs a second signal sampling second proportion for a second predetermined time on a second proportion of a plurality of reflected signals, so as to generate a plurality of sampling results corresponding to the plurality of pixels; obtaining a plurality of depth information and a plurality of luminance information corresponding to the plurality of pixels according to the plurality of sampling results; and adjusting the first proportion and the second proportion according to the plurality of depth information and the plurality of luminance information.

Time-of-flight based distance measuring method and related distance measuring system

A time-of-flight distance measuring system includes: intermittently transmitting a plurality of first pulses, wherein the plurality of first pulses are reflected by a target to generate a plurality of first reflected signals; using a TOF sensor to selectively perform a first signal sampling or a second signal sampling upon the plurality of first reflected signals respectively to generate a first sampling result, wherein there is a first time difference between a starting time point of the first signal sampling and a transmitting time point of the corresponding first pulse, and the first signal sampling lasts for a first predetermined time, and there is a second time difference between a starting time point of the second signal sampling and a transmitting time point of the corresponding first pulse, and the second signal sampling lasts for second predetermined time, and the first time difference is smaller than the second time difference.

Time-of-flight distance measuring methods and related distance measuring systems

The present application discloses a time-of-flight (TOF) sensor and a related chip, electronic device, and distance measuring system. The TOF sensor includes: a clock signal generation circuit to generate a first clock signal and a second clock signal; a transmission circuit to generate a third clock signal based on the first clock signal, wherein the third clock signal is outputted to the light-emitting module; a replicated transmission circuit to simulate the transmission circuit, and generate a fourth clock signal based on the second clock signal; a delay locked loop to generate a fifth clock signal based on one of sixth clock signals and the fourth clock signal; a clock tree to generate the plurality of sixth clock signals based on the fifth clock signal; a pixel array, having pixel columns respectively sampling the reflected light pulse based on the plurality of sixth clock signals to generate a sampling result.

Time-of-flight sensor, distance measuring system, and electronic device

A time-of-flight based distance measuring method and a time-of-flight based distance measuring system are provided. The distance measuring method includes: sending N consecutive pulses from a transmitter side intermittently, N being a positive integer greater than one, wherein the N consecutive pulses are reflected by a target object, and a reflection signal is generated accordingly, during arrival of the reflected signal at a receiver side, sampling the reflected signal multiple times according to a predetermined sampling interval within a predetermined sampling duration and accordingly generating a sampling result; detecting time of flight of a single pulse of the N consecutive pulses traveling from the transmitter side to the receiver side according to the sampling result; and measuring a distance between the target object and a reference position according to the time of flight. The distance measuring method maintains good measurement quality, measures the distance rapidly, and consumes low power.

Time-of-flight based distance measuring method and distance measuring system

Disclosed herein are a depth-sensing device and a related electronic device and method for operating the depth-sensing device. The depth-sensing device includes: an image sensor, which includes a pixel array, configured to sense a reflected light signal reflected from a target to the pixel array, wherein reflected light signal forms a plurality of light speckles on the pixel array, and the pixel array includes a plurality of first-type pixels and a plurality of second-type pixels, wherein the first-type pixel are distributed in a first set of pixel rows of the pixel array, the second-type pixels are distributed in a second set of pixel rows of the pixel array, and the pixel rows extend toward a first predetermined direction.

Depth-sensing device and related electronic device and method for operating depth-sensing device

The present disclosure discloses a three-dimensional (3D) image sensor and a related 3D image sensing module and hand-held device. The 3D image sensor includes, a photosensitive pixel array, including: a first photosensitive pixel; a second photosensitive pixel; and a pixel control signal transmission line, so that the first photosensitive pixel and the second photosensitive pixel respectively output a first photosensitive value and a second photosensitive value according to a pixel control signal; wherein the pixel control signal reaches a first node at a first time point and reaches a second node at a second time point; a delay detection module, including: a first delay detection circuit, for determining a time difference between the first time point and the second time point; and a processing unit, for generating the first depth information and the second depth information based on the first photosensitive value, the second photosensitive value, and the time difference.

3D image sensor and related 3D image sensing module and hand-held device

A method and a system for near field communication of an electronic device are disclosed. The method comprises: communicating frequency points at which the two parties suffer from interference with a second electronic device through a scanning frame, wherein the scanning frame comprises at least two symbols modulated by using different frequencies; and determining a modulation manner according to the available frequency points in order to perform data transmission with the second electronic device. With the embodiment of the present invention, interference frequencies in the communication environment are detected by sending the scanning frame which comprises at least two symbols modulated by using different frequencies, and frequency points with smaller interference are selected for adaptation modulation data, thus the interference frequency points are shielded from data transmission, and external interference in the near field communication is avoid, and communication stability is improved, and communication quality is improved.

Growing community of inventors

Guangdong, China

Meng-Ta Yang