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Liangkai Yu

from New Providence, NJ
Age ~63
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Also known as:
Liang K Yu, Yu Liangkai, Liangkai Lu
Phone and address:
108 Greenwood Rd, Murray Hill, NJ 07974
(908) 665-2409
Related to:
Diane E Vaale, 75Barry T Bridges, 72Catherine Boden, 79Brittany Morgan, 35Mabel BodenDennis Boden, 78Eric Boden, 50
Connected to:
Ah Y Yu, 45Ailin Yu, 59Alberto N Yu, 76Alfred F Yu, 72Amos L Yu, 49Anderson H Yu, 58Angeline Yu, 36Anliu Yu, 56Annie Yu, 64Archie Yu, 48

Liangkai Yu Phones & Addresses

  • 108 Greenwood Rd, New Providence, NJ 07974 (908) 665-2409
  • Bronx, NY
  • Moscow, ID
  • Union, NJ

Work

Company: Nokia Sep 2010 Position: Applied r and d engineer

Education

Degree: Masters School / High School: University of Idaho 1994 to 1996 Specialities: Electronics Engineering

Skills

Algorithms • C • Fpga • Matlab • Vhdl • Lte Remote and Local Radio Head Test • Digital Pre Distortion • Vsa and Signal Studio • System Generator • Dsp Builder • Xilinx • Dsp • Peak Limiter • Simulink • Altera • Orcad

Languages

English • Mandarin

Industries

Wireless

Resumes

Resumes

Liangkai Yu Photo 1

Applied R And D Engineer

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Location:
108 Greenwood Rd, New Providence, NJ 07974
Industry:
Wireless
Work:
Nokia
Applied R and D Engineer
Ibiquity Digital Oct 2005 - Sep 2010
Senior Engineer
Sirius Xm Radio Inc. Oct 2004 - Oct 2005
Senior Hardware Engineer
Alcatel-Lucent Jun 1996 - Oct 2004
Member of Technical Staff
Education:
University of Idaho 1994 - 1996
Masters, Electronics Engineering University of Idaho 1991 - 1995
Doctorates, Doctor of Philosophy, Physics, Philosophy Fudan University 1984 - 1987
Masters, Electronics Engineering Fudan University 1980 - 1984
Bachelors, Electronics Engineering
Skills:
Algorithms
C
Fpga
Matlab
Vhdl
Lte Remote and Local Radio Head Test
Digital Pre Distortion
Vsa and Signal Studio
System Generator
Dsp Builder
Xilinx
Dsp
Peak Limiter
Simulink
Altera
Orcad
Languages:
English
Mandarin

Publications

Us Patents

Systems And Methods For Dc Component Recovery In A Zero-If Radio Receiver

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US Patent:
8019311, Sep 13, 2011
Filed:
Jun 27, 2008
Appl. No.:
12/213997
Inventors:
Michael Nekhamkin - Bridgewater NJ, US
Liangkai Yu - New Providence NJ, US
Assignee:
iBiquity Digital Corporation - Columbia MD
International Classification:
H04B 1/26
H04B 1/18
US Classification:
455313, 4551651, 4551901, 4551921
Abstract:
Methods and systems for recovering a DC component in a zero-IF radio receiver are disclosed that involve receiving a frequency modulated radio frequency broadcast signal, down-converting the frequency modulated radio frequency broadcast signal directly to an original baseband frequency signal, wherein the original baseband frequency signal includes an original DC component, filtering the original baseband signal to obtain a filtered baseband signal, wherein the original DC component is removed, analyzing modulus values of the filtered baseband signal to determine an estimated quantity for the original DC component, and adding the estimated quantity for the original DC component to the filtered baseband signal to compensate for removal of the original DC component such that a reconstructed baseband signal is obtained.

Method And Apparatus For Interference Cancellation In Hybrid Satellite-Terrestrial Network

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US Patent:
20130208655, Aug 15, 2013
Filed:
Aug 2, 2012
Appl. No.:
13/564840
Inventors:
Hong Jiang - Warren NJ, US
Liangkai Yu - New Providence NJ, US
Assignee:
ALCATEL-LUCENT USA INC. - Murray Hill NJ
International Classification:
H04B 7/185
US Classification:
370317
Abstract:
In a method for cancelling interference caused by a terrestrial transmitter at a satellite receiver in a hybrid satellite-terrestrial network, a satellite receiver generates an interference cancellation signal based on a reference terrestrial signal from the terrestrial transmitter and a received over-the-air (OTA) signal. The satellite receiver then cancels the interference caused by the terrestrial transmitter by combining the interference cancellation signal with the received OTA signal. The interference cancellation signal is a modified version of the reference terrestrial signal.

Apparatus And Method For Phase Tracking In A Demodulator

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US Patent:
6445752, Sep 3, 2002
Filed:
Feb 12, 1999
Appl. No.:
09/248904
Inventors:
Hong Jiang - Montclair NJ
Paul L. Palmieri - New Providence NJ
Agesino Primatic, Jr. - Frenchtown NJ
Lesley J. Wu - Parsippany NJ
Liangkai Yu - New Providence NJ
Assignee:
Agere Systems Guardian Corp. - Miami Lakes FL
International Classification:
H04L 2714
US Classification:
375326, 375235
Abstract:
A phase tracker receives a signal component x and forms a phase- and gain-corrected signal z. In particular, the phase tracker performs a Hilbert transform of x to produce a quadrature phase component y to form the constellation defined by (x , y ). Consequently, phase rotation and gain adjustment are combined into a linear transform of the constellation defined by (x , y ). The linear transform z =x +y employs two coefficients and. The coefficients and of the linear transform are derived so as to provide an optimal solution according to minimum mean square error. Approximations to the coefficients and of the linear transform may be iteratively determined with a stochastic gradient method. Advantages of employing the phase- and gain-corrected signal z as an I-phase detection result of a demodulator include 1) the phase rotation and gain adjustment are combined into one operation, and 2) the a sine/cosine lookup table is not employed. Including both phase rotation and a gain adjustment may provide for better performance of the demodulator.
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Liangkai Yu from New Providence, NJ, age ~63 Get Report