Inventor
XU CHANG-QING
CA16 patents
⚠️ This page may combine multiple inventors who share the name “XU CHANG-QING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
6 patentsUS5946129AAug 31, 1999
Wavelength conversion apparatus with improved efficiency, easy adjustability, and polarization insensitivity
OKI ELECTRIC IND CO LTD66 citations96
US5963359AOct 5, 1999
Wavelength conversion device employing non-diffracting beam
OKI ELECTRIC IND CO LTD39 citations92
US5786916AJul 28, 1998
Optical-wavelength interchanger element and optical-wavelength interchanger device
OKI ELECTRIC IND CO LTD17 citations84
US5943161AAug 24, 1999
Wavelength conversion device employing Bessel beams with parallel polarization
OKI ELECTRIC IND CO LTD11 citations73
US5734494AMar 31, 1998
Wavelength conversion device and wavelength conversion method
OKI ELECTRIC IND CO LTD10 citations73
US7034990B2Apr 25, 2006
Wavelength conversion element and method for using same
OKI ELECTRIC IND CO LTD3 citations61
OKI TECHNO CT SINGAPORE PTE
5 patentsUS7210089B2Apr 24, 2007
Communication system employing turbo codes and a hybrid automatic repeat request scheme
OKI TECHNO CT SINGAPORE PTE20 citations91
US7203894B2Apr 10, 2007
Method of estimating reliability of decoded message bits
OKI TECHNO CT SINGAPORE PTE18 citations90
US7376881B2May 20, 2008
Encoder system, a decoder system, a coding/decoding apparatus, an encoding method and a decoding method
OKI TECHNO CT SINGAPORE PTE4 citations61
US7103117B2Sep 5, 2006
Reduced-complexity multipath interference cancellation
OKI TECHNO CT SINGAPORE PTE5 citations61
US7099405B2Aug 29, 2006
Communication systems with hybrid automatic repeat requests (HARQ) and rate matching
OKI TECHNO CT SINGAPORE PTE5 citations61
UNIV MCMASTER
4 patentsUS7340119B1Mar 4, 2008
Optical sensor and system
UNIV MCMASTER19 citations92
US10712640B2Jul 14, 2020
Speckle reduced laser projection with color gamut optimization
UNIV MCMASTER1 citations62
US11815783B2Nov 14, 2023
Mid-infrared wavelength optical transmitter and receiver
UNIV MCMASTER0 citations53
US11841599B2Dec 12, 2023
Apparatus of optical transmitters and receivers operating in long wave infrared wavelength ranges
UNIV MCMASTER0 citations43