Inventor

TANG XUEFENG

CA30 patents

⚠️ This page may combine multiple inventors who share the name “TANG XUEFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TANG XUEFENG

HUAWEI TECH CO LTD

Systems and methods for optical signal-to-noise ratio monitoring

Powered device (PD) with simplified rectifier circuit

Device and methods for real-time polarization-dependent loss monitoring at coherent transceivers

Monitoring performance of optical network using low-power gaps and a pilot tone

Low cost intensity-modulated direct-detection (IMDD) optical transmitter and receiver

Method and system for compressing and employing pattern dependent look-up table

Transmitter and receiver for mirror crosstalk evaluation and methods therefor

Systems and methods for frequency domain local oscillator frequency offset compensation

Method and system for pre-compensating non-linear distortion in data samples

Method and apparatus for laser frequency control

Systems and methods for determining spectrum resolved SNR in an online dense wavelength division multiplexing optical link

Network-based power supply system

JIANG ZHIPING

Method and system for removing a pilot tone from an optical signal

Method and system for removing a pilot tone from an optical signal

Systems and methods in an optical network

Optical transceiver, communication system, and adaptive frequency control method

QUALCOMM INC

Methods and apparatus for GPU context register management

GPU hardware-based depth buffer direction tracking

Dynamically switching between late depth testing and conservative depth testing

NG WING CHAU

Apparatus and method for in-phase and quadrature skew calibration in a coherent transceiver

Method and apparatus for coherent transmitter calibration

Apparatuses and methods of far-end transmitter skew monitoring in digital subcarrier multiplexing systems

FUJIAN GEOLOGICAL ENGINEERING SURVEY INST

Test structure and test method for implementing on-site dry-wet cycle of large-grain-size rock-soil body

Construction method of fast-setting polymer grouting for rapid control of slope erosion and landslide

BECKETT DOUGLAS JAMES

Rapid calculation of nonlinear optical transmission impairments

KE JIANHONG

Method and apparatus of low-complexity pattern dependent lookup table pre-compensation

UNIV HUAZHONG SCIENCE TECH

Method for calibrating internal temperature field of amorphous alloy prepared by spark plasma sintering

CHUNG SUNG

Intensity modulated direct detection optical transceiver

TANG XUEFENG

Self-calibrating device and method for in-phase and quadrature time skew and conjugation in a coherent transmitter

LI MINGZHU

Frequency-hopping control method and module, and DC/DC converter