Inventor
HEFFNER BRIAN L
US20 patents
⚠️ This page may combine multiple inventors who share the name “HEFFNER BRIAN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
10 patentsUS5971538AOct 26, 1999
Articulated nose bridge for head mounted display
HEWLETT PACKARD CO144 citations99
US5202745AApr 13, 1993
Polarization independent optical coherence-domain reflectometry
HEWLETT PACKARD CO468 citations99
US5298972AMar 29, 1994
Method and apparatus for measuring polarization sensitivity of optical devices
HEWLETT PACKARD CO144 citations98
US5227623AJul 13, 1993
Method and apparatus for measuring polarization mode dispersion in optical devices
HEWLETT PACKARD CO84 citations96
US5850287ADec 15, 1998
Roller assembly having pre-aligned for on-line thickness measurements
HEWLETT PACKARD CO35 citations92
US5731876AMar 24, 1998
Method and apparatus for on-line determination of the thickness of a multilayer film using a partially reflecting roller and low coherence reflectometry
HEWLETT PACKARD CO27 citations92
US5633712AMay 27, 1997
Method and apparatus for determining the thickness and index of refraction of a film using low coherence reflectometry and a reference surfaces
HEWLETT PACKARD CO25 citations92
US5610716AMar 11, 1997
Method and apparatus for measuring film thickness utilizing the slope of the phase of the Fourier transform of an autocorrelator signal
HEWLETT PACKARD CO28 citations92
US5296913AMar 22, 1994
Polarimeter re-calibration method and apparatus
HEWLETT PACKARD CO35 citations92
US5923476AJul 13, 1999
Optical viewer with an aperture transformer
HEWLETT PACKARD CO10 citations74
OPNEXT SUBSYSTEMS INC
4 patentsUS7991300B2Aug 2, 2011
Optical receiver having bandwidth control for intersymbol interference compensation
OPNEXT SUBSYSTEMS INC10 citations83
US8023833B2Sep 20, 2011
Optical receivers with controllable transfer function bandwidth and gain imbalance
OPNEXT SUBSYSTEMS INC7 citations79
US7970289B2Jun 28, 2011
GT decoder having bandwidth control for ISI compensation
OPNEXT SUBSYSTEMS INC2 citations62
US7983573B2Jul 19, 2011
Optical receiver having FSR phase compensation
OPNEXT SUBSYSTEMS INC1 citations51
AGILENT TECHNOLOGIES INC
3 patentsUS6316764B2Nov 13, 2001
Autoalignment and autofocus mechanism for coupling light between an optical fiber and a physical specimen
AGILENT TECHNOLOGIES INC28 citations92
US6215118B1Apr 10, 2001
Autoalignment and autofocus mechanism for coupling light between an optical fiber and a physical specimen
AGILENT TECHNOLOGIES INC8 citations74
US6295039B1Sep 25, 2001
Thin illuminator for reflective displays
AGILENT TECHNOLOGIES INC1 citations51