Inventor

YU JIANJUN

US106 patents

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

YU JIANJUN

ZTE CORP

In-band signaling for reconfiguring software defined optics

Adaptive pre-equalization in optical communications

Orbital angular momentum multiplexing for digital communication

Recovering data from quadrature phase shift keying modulated optical signals

Transmission and reception of quad-subcarrier orthogonal frequency division multiplexed signals

Techniques for receiving DFT spreading modulation signals

Nonlinearity pre-compensation of high order modulation transmissions

Using multi-level pulse amplitude modulation with probabilistic shaping

Optical pulse amplitude modulation transmission using digital pre-compensation

Channel estimation using intra-symbol frequency domain averaging

Chirp managed laser generation for next generation passive optical networks

Optical communication using super-nyquist signals

Training assisted joint equalization

Adaptive post digital filter and inter-symbol interference equalizer for optical communication

Techniques for blind equalization of high-order quadrature amplitude modulation signals

Reception of 2-subcarriers coherent orthogonal frequency division multiplexed signals

Blind equalization of dual subcarrier OFDM signals

Recovering data from quadrature phase shift keying modulated optical signals

Method and apparatus for generation of frequency- and phase-locked subcarrier

ZTE USA INC

Half-cycled orthogonal frequency divisional multiplexing transmission and reception

Direct detection of optical orthogonal frequency division multiplexing (OFDM) signals

System and method for heterodyne coherent detection with optimal offset

Directly-modulated multi-polarization optical transmitters

Methods and apparatus for coherent duobinary shaped PM-QPSK signal processing

Digital generation of multi-carrier optical signals

Methods and apparatus for pre and post equalization in optical communications systems

Nyquist wavelength division multiplexing system

Digital non-linear compensation in optical communication systems

Method and apparatus for optical wireless architecture

YU JIANJUN

Centralized lightwave WDM-PON employing intensity modulated downstream and upstream

100 Gbit/s OFDM optical signal generation

All-optical wavelength conversion for a polarization multiplexing optical signal

Methods and systems for coherent multi-subcarrier source generation

Method and system for generation of coherent subcarriers

NEC LAB AMERICA INC

Full range offset correction for coherent optical OFDM systems

Wavelength division multiplexed passive optical network

Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance

Wavelength division multiplexing passive optical network architecture with source-free optical network units

Optical communication system and method for generating dark return-to zero and DWDM optical MM-Wave generation for ROF downstream link using optical phase modulator and optical interleaver

QUALCOMM INC

Differential digital-to-time converter for even-order INL cancellation and supply noise/disturbance rejection

Frequency synthesizer with selectable modes

Low power digital-to-time converter (DTC) linearization

TRIQUINT TECHNOLOGY HOLDING CO

Method and system for generating short pulse signals

DAI FA FOSTER

Vernier ring time-to-digital converters with comparator matrix

XU LEI

Ultra wide-range frequency offset estimation for digital coherent optical receivers

LUO YUANQIU

WDM passive optical network with parallel signal detection for video and data delivery

BARCZYNSKI DAREK

Over travel hood latch

LSI CORP

Methods and apparatus for optical data transmission over standard fiber

CHIEN HUNG CHANG

Method and apparatus for generation of coherent and frequency-lock optical subcarriers

KONINKL PHILIPS ELECTRONICS NV

Circuit arrangement