Photonic Technologies (shanghai) Co., Ltd.

Inventec Corp.

Inventec (pudong) Technology Corporation

Shanghai Zhao Xiang Biological Technology Co., Ltd

Photonic Technologies (shenzhen) Co., Ltd.

Xuefeng Chen

Rui Bai

Shang Hu

Tao Xia

Patrick Yin Chiang

Juncheng Wang

Xin Wang

Wenjun He

Wenzong Pan

Pei Jiang

Zhichun Wang

Yuanxi Zhang

Xiaowei Zhang

Dong-Rui Xue

Pinyi Xiang

Lisheng Wang

Yanhua Shi

Yang Ying

Tingyu Yao

Jiaming Chen

Ziqiang Chen

Shunjie Huang

Zili Chen

Ting Shu

De Bin Qi

Yuan Wx Li

Xu Yang

Ming Lu

Yi-dong Ji

Pin-Yi Xiang

Xudong Zhang

Quanhui Sun

Shenglong Zhuo

Yifan Wu

Raijin Li

Yidong Ji

Jianxu Ma

Yuwei Wang

Ziang Xu

Qun Wu

Kaitao Jin

Ling Lu

Danrong Zheng

A redriver chip for an active copper cable is provided includes: an input signal detection module, configured for detecting a signal amplitude of an input signal; an amplitude gain control module, configured for: performing amplitude control based on a first adjustable gain so as to obtain an intermediate signal; an equalization control module, configured for: performing gain control based on a second adjustable gain, to a gain of a high-frequency part of the intermediate signal relative to a low-frequency part, so as to obtain an output signal. The chip is configured for: amplifying in equal proportions a low-frequency part of the output signal relative to a low-frequency part of the input signal and a high-frequency part of the output signal relative to a high-frequency part of the input signal.

Redriver chip, method, and device for active copper cable

A hard disk supporting structure is provided. The hard disk supporting structure includes a hard disk rack, a telescopic connecting rod, and a motor. The hard disk rack is for disposing at least one hard disk. An end of the telescopic connecting rod is connected to a rear end of the hard disk rack. The motor is connected to the other end of the telescopic connecting rod through a transmission mechanism; the motor drives the telescopic connecting rod to extend or retract through the transmission mechanism, to drive the hard disk rack to move back and forth. The present disclosure can automatically move the hard disk rack back and forth through a structure with automatic telescopic function, which saves labor, and improves efficiency.

Hard disk supporting structure

This disclosure relates to a liquid cooling assembly that includes a base, a cover, a first connector, and a second connector. The cover is disposed on the base. The cover and the base together form an accommodation space therebetween. The cover has an inlet and an outlet respectively located at two opposite sides of the cover in a direction parallel to a longitudinal direction of the cover. The first connector is disposed to the inlet of the cover. The second connector is disposed to the outlet of the cover.

Liquid cooling assembly

A high-side driver method for a laser of a Lidar, including: transforming a first input signal into a second input signal between a first voltage value and a second voltage value, by a level translation module; stepping down a first voltage signal according to a first voltage difference to obtain a second voltage signal, by a low-dropout linear regulator; generating a first control signal, by the first pre-driver module; generating a pulse current for driving the laser, by the first power switching transistor.

High-side driver method and device for a laser of a lidar

A hard disk supporting structure is provided. The hard disk supporting structure includes a hard disk rack, a crawler mechanism, and a motor. The hard disk rack is for disposing at least one hard disk. A crawler of the crawler mechanism is fixedly connected with the hard disk rack. The motor is connected to a driving gear of the crawler mechanism. The motor drives the rotation of the driving gear, to enable the crawler to drive the hard disk rack to move back and forth. The hard disk supporting structure can automatically move the hard disk rack back and forth through a structure with automatic telescopic function, which greatly saves labor, and improves efficiency.

A test card and a test display adapter are disclosed. The test card includes an assembling plate and an electrical heat source. The electrical heat source is provided on the assembling plate. The electrical heat source includes a first heat transfer plate, a second heat transfer plate and at least one heat source element. The first heat transfer plate is stacked on the assembling plate, and the second heat transfer plate is laminated over the first heat transfer plate, with the heat source element being sandwiched between the first and second heat transfer plates. The test card and the test display adapter have a wide variety of advantages including very low cost, easy material availability, a short wait time, easy manufacturability, a long service life, easy modifiability and good interoperability.

Test card and test display adapter with shorter time for preliminary heat dissipation tests of high-performance display adapters

The present disclosure provides a liquid cooling seal box, a box cover thereof, and an in-vehicle cooling system. The liquid cooling seal box includes a sealed heat conduction box body, an inner cavity of the heat conduction box body includes a heating device and an insulating liquid in which the heating device is immersed, the insulating liquid absorbs heat of the heating device and vaporizes, vaporized steam rises to the top of the inner cavity of the heat conduction box body to be cooled and liquefied, and a liquefied insulating liquid falls back into the insulating liquid at the bottom of the inner cavity. The liquid cooling seal box of the present disclosure resolves problems of reliability, harsh environment, balance of volume and computation power, etc., is suitable for an in-vehicle system, and may implement stable and reliable running of a server in an in-vehicle environment.

Liquid cooling seal box, box cover thereof, and in-vehicle cooling system

The present disclosure provides a cooling casing and a cooling device applied to a vehicle and an in-vehicle server. The cooling device applied to the in-vehicle server includes: a first housing and a second housing, an accommodating cavity is formed between the first housing and the second housing; and a cooling duct, the cooling duct being spirally disposed in the accommodating cavity, two ends of the cooling duct are connected to an external cooling system, and the cooling duct is filled with cooling liquid. The present disclosure is simple in structure and low in costs, and can effectively resolve the heat dissipation problem of the in-vehicle server.

Cooling casing and cooling device applied to vehicle and in-vehicle server

A method for assessing transportation risk is adapted to an object transported by a vehicle. The method comprises disposing a sensor on a floor of the vehicle to generate and collect a vibration signal, with the floor being configured to carry the object, a computing device performs a time-domain processing procedure according to the vibration signal to output a first data, performs a frequency-domain processing procedure according to the first data to output a second data, performs a risk assessing procedure to output a risk level according to the second data and a reference data, wherein the second data comprises an actual vibration intensity and an actual vibration duration and the reference data comprises a reference vibration intensity and a reference vibration duration.

System and method for assessing transportation risk

A laser pulse sampling and detecting circuit includes: a laser driver which is driven by a triggering signal for generating laser pulse signal; a photoelectric converter for converting the laser pulse signal into current pulse signal; an amplifier for amplifying and converting the current pulse signal into voltage pulse signal; an ADC which is driven by a sampling clock signal for sampling the voltage pulse signal and performing analog-to-digital conversion on the voltage pulse signal, so as to obtain output signal of the ADC; a detector for detecting the output signal of the ADC, so as to obtain peak power and FWHM of the laser pulse signal; and a clock generator for generating the sampling clock signal. Phase of the sampling clock signal consecutively changes with respect to the triggering signal.

Laser pulse sampling and detecting circuit, system, and method

An automatic test system suitable for testing a server comprises a storage device, a computing device, and a sensing device. The storage device stores an automatic test script. The sensing device collects a plurality of test results of the server. The automatic test script comprises a parameter configuration module, a data processing module, and a core logic module. The parameter configuration module provides a plurality of configuration parameters associated with a server test procedure. The data processing module comprises a data recording sub-module and a data sorting sub-module, while the former receives an output data set from the server test procedure, and the latter generates a test report according to the output data set and the configuration parameters. The core logic module comprises a plurality of instruction sets for controlling the server test procedure through a data exchange interface.

Automatic test system and method thereof

The present disclosure provides a hybrid-mode laser drive circuit and an optical emitting system. An equalizer circuit is configured to generate, according to a data signal and a clock signal, an equalization signal for compensating a hybrid-mode laser drive circuit; the hybrid-mode laser drive circuit is connected to an output end of the equalizer circuit, and is configured to generate a corresponding drive signal according to an output signal of the equalizer circuit, so as to drive a light emitting diode to generate a corresponding optical signal; a third current source is connected between a power supply voltage and an output end of the hybrid-mode laser drive circuit; an anode of the light emitting diode is connected to the output end of the hybrid-mode laser drive circuit and a cathode of the light emitting diode is connected to a power supply ground.

Hybrid-mode laser drive circuit and optical emitting system

This disclosure relates to a pallet includes a first board, a second board, a first elastic component and a second elastic component. The first elastic component and the second elastic component are disposed between the first board and the second board, and the second elastic component is closer to an edge of the second board than the first elastic component. The second elastic component has a density higher than that of the first elastic component.

Pallet

The present disclosure provides a pulse generation module, and an optical communication transmitter system and a non-linear equalizing method thereof, the pulse generation module includes: a mode detector that outputs a corresponding effective detection signal after detecting a preset mode, a controller that generates a corresponding selection signal according to a jump mode, and an equalizing pulse generator that generates a corresponding equalizing pulse signal according to the effective detection signal and the selection signal. A jump mode of each piece of data in a data stream is detected, and a corresponding equalizing pulse signal is generated based on the detected jump mode, to compensate for nonlinearity of a laser driving signal. Information about a rising edge and a falling edge is determined by detecting a jump mode of data, a balanced current is provided for a particular purpose, and nonlinearity of a laser is compensated by current output.

Pulse generation module, and optical communication transmitter system and non-linear equalizing method thereof

A laser power calibration method includes: receiving a first power fed back by a transmitter end; comparing a difference of the first power against a second power predefined at the transmitter end; and when the difference exceeds a predefined range, controlling an output power of the transmitter end to be a third power, wherein the third power is an average power of the first power and the second power.

Laser power calibration method, device and system

Growing community of inventors

Shanghai, China

Xuefeng Chen