Inventor

Wenhua Zhang

Inventor

Suzhou, CN

Overview

2006–2020

Patent span

Physics

Primary field (CPC G)

Patents· 58 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Kprimary

G06KGraphical data reading42%

B81BMicrostructural devices or systems, e.g. micromechanical devices10%

G06FElectric digital data processing8%

B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems7%

G01CMeasuring distances, levels or bearings7%

H01LSemiconductor devices4%

H10NElectric solid-state devices not otherwise provided for4%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock2%

G02BOptical elements, systems or apparatus2%

PatentTitleYear

10,680,155Methods of fabrication of flexible micro-thermoelectric generators2020 10,322,926MEMS device with reduced dynamic stress and methods2019 10,267,636Method to test the quality factor of a MEMS gyroscope at chip probe2019 10,183,860Method to package multiple mems sensors and actuators at different gases and cavity pressures2019 10,132,630Multi-axis integrated MEMS inertial sensing device on single packaged chip2018 10,046,964MEMS structure with improved shielding and method2018 10,036,635Multi-axis MEMS rate sensor device2018 9,950,921MEMS structure with improved shielding and method2018 9,725,304'Method to package multiple MEMS sensors and actuators at different gases and cavity pressures'2017 9,464,899'Method of reducing gyroscope oscillator start-up time and device therefor'2016 9,174,838'Distributed MEMS devices time synchronization methods and system'2015 9,075,079'Method and structure of an integrated MEMS inertial sensor device using electrostatic quadrature-cancellation'2015 8,733,171'Compensating frequency mismatch in gyroscopes'2014 8,446,661'Tunable nanowire resonant cavity for optical modulation'2013 8,272,266'Gyroscopes using surface electrodes'2012 8,049,579'Resonator having a stator coupled to three stator voltages'2011 7,966,880'Adjusting the damping level of an encapsulated device'2011 7,681,799'Method of reading code symbols using a digital image capturing and processing system employing a micro-computing platform with an event-driven multi-tier software architecture'2010 7,637,433'Digital image capture and processing system employing a micro-computing platform with an event-driven multi-tier modular software architecture and supporting an image-processing based illumination metering program for automatically adjusting illumination during object illumination and imaging operations'2009 7,624,926'Method of automatically reading code symbols on objects present within the field of view (FOV) of a hand-supportable digital-imaging based code symbol reader, by simultaneously projecting an image cropping zone (ICZ) framing pattern and a field of illumination within the FOV during object illumination and imaging operations'2009 7,611,064'Digital image capture and processing system having automatic illumination measurement and control capabilities realized using a photodetector operating independently of the image sensing array, and an image-processing based illumination metering program for automatically adjusting the illumination duration of the system during object illumination and imaging operations'2009 7,604,175'Method of reading bar code symbols using a digital-imaging based code symbol reading system employing an event-driven multi-tier modular software architecture and supporting automatic operating system login and loading of bar code symbol reading application'2009 7,568,625'Hand-supportable digital image-processing based bar code symbol reading system employing image cropping zone (ICZ) framing and post-image capture cropping'2009 7,527,206'Method of setting the time duration of illumination from an LED-based illumination array employed in a digital imaging-based code symbol reader, using an image-processing based illumination metering program executed therewithin'2009 7,513,430'Digital image capturing and processing system employing an area-type image sensing array exposed to narrow-band illumination from a narrow-band illumination subsystem for a time duration controlled using a photodetector operated independently from said area-type image sensing array'2009 7,510,122'Portable digital image capturing and processing system employing an area-type image sensing array exposed to illumination produced from an LED-based illumination array and measured using a photodector operated independently from said area-type image sensing array'2009 7,503,499'Digital image capturing and processing system producing narrow-band illumination when image sensor elements in a state of integration, and simultaneously detecting narrow-band illumination using an area-type image sensor and independently-operated photo-detector'2009 7,503,498'Hand-supportable digital image capturing and processing system employing an area-type image sensing array exposed to illumination from an LED-based illumination array only when all sensor elements in said image-sensing array are activated and in a state of integration'2009 7,490,774'Hand-supportable imaging based bar code symbol reader employing automatic light exposure measurement and illumination control subsystem integrated therein'2009 7,490,778'Method of reading code symbols using a hand-supportable digital image capturing and processing device employing a micro-computing platform supporting an event-driven multi-tier modular software architecture'2009 7,477,441'MEMS device with nanowire standoff layer'2009 7,469,835'Digital-imaging based code symbol reading system employing an event-driven multi-tier modular software architecture and supporting automatic operating system login and loading of code symbol reading application'2008 7,428,998'Automatic hand-supportable image-based bar code symbol reader having image-processing based bar code reading subsystem employing simple decode image processing operations applied in an outwardly-directed manner referenced from the center of a captured narrow-area digital image of an object bearing a 1D bar code symbol'2008 7,360,706'Hand-supportable imaging-based auto-discriminating 1D/2D bar code symbol reader employing a multi-mode image processing bar code symbol reading subsystem having a plurality of modes of operation which are dynamically reconfigurable in response to real-time image analysis'2008 7,357,325'Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensor using global exposure techniques'2008 7,347,374'Hand-supportable digital imaging-based bar code symbol reader employing an event-driven system control subsystem, automatic IR-based object detection, and trigger-switch activated image capture and processing subsystem'2008 7,325,738'Method of and system for determining the lower limit of decoding resolution in an imaging-based bar code symbol reader'2008 7,320,431'Digital imaging-based bar code symbol reading system employing a multi-mode illumination subsystem with far-field and near field led-based illumination arrays'2008 7,299,986'Digital imaging-based bar code symbol driven portable data terminal system'2007 7,293,714'Hand-supportable digital imaging-based bar code symbol reading system automatically processing captured images along parallel virtual scan lines based on the maximum pixel height of the region of interest (ROI)'2007 7,284,705'Hand-supportable semi-automatic digital imaging-based bar code symbol reading system realized upon a multi-tier modular software platform'2007 7,281,661'Hand-supportable digital imaging-based bar code symbol reading system employing a method of intelligently illuminating an object so as to generate a digital image thereof which is substantially free of noise caused by specular-type reflection'2007 7,278,575'Hand-supportable image-based bar code symbol reader employing helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereof'2007 7,270,272'Digital image-based bar code symbol reading system employing a multi-mode image-processing symbol reading subsystem'2007 7,267,282'Hand-supportable imaging-based bar code symbol reader capable of exposing an automatically detected object to a field of narrow-band LED-based illumination only when substantially all rows of pixels in a CMOS image sensing array are in a state of integration'2007 7,255,279'Hand-supportable digital imaging-based bar code reading system wherein, during each imaging cycle, a single frame of pixel data is automatically detected by a CMOS area-type image sensing array when substantially all rows of pixels therein are in a state of integration and have a common integration time, and then pixel data is transmitted from said CMOS area-type image sensing array into a FIFO buffer, and then mapped into memory for subsequent image processing'2007 7,243,847'Digital imaging-based bar code symbol reader employing an LED-based illumination subsystem driven by an automatic light exposure measurement and illumination control subsystem'2007 7,240,844'Hand-suportable imaging-based bar code symbol reader employing an automatic light exposure measurement and illumination control subsystem for measuring illumination exposure on CMOS image sensing array and controlling LED illumination array driver circuitry'2007 7,237,722'Hand-supported imaging-based bar code symbol reader employing a multi-mode image-processing based bar code reading subsystem with modular image-processing architecture'2007 7,225,988'Hand-supportable imaging-based bar code symbol reader employing a tri-mode led-based illumination subsystem'2007 7,225,989'Method of performing auto-discrimination of 1D/2D bar code symbologies in a semi-automatic hand-supportable imaging-based bar code symbol reader having narrow-area and wide-area image capture modes of operation'2007 7,216,810'Hand-supportable multi-mode digital imaging-based bar code symbol reader employing an automatic illumination and exposure control subsystem that automatically controls the operation of a multi-mode led-based illumination subsystem so that detected objects are sufficiently illuminated and good quality digital images thereof are formed and detected'2007 7,213,762'Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensing array in combination with a band-pass optical filter subsystem, narrow-band illumination subsystem, and automatic light exposure measurement and illumination control subsystem'2007 7,188,770'Hand-supportable semi-automatic imaging-based bar code reading system wherein an led-based illumination subsystem automatically illuminates a detected target object in a narrow-area field of illumination, and illuminates the detected target object in a wide-area field of illumination upon manual activation of a trigger switch'2007 7,185,817'Hand-supportable digital imaging-based bar codes symbol reader employing multi-mode subsystems'2007 7,178,733'Hand-supportable imaging-based bar code symbol reader employing automatic object presence and range detection to control the generation of near-field and far-field wide-area illumination during bar code symbol imaging operations'2007 7,128,266'Hand-supportable digital imaging-based bar code symbol reader supporting narrow-area and wide-area modes of illumination and image capture'2006 7,086,595'METHOD OF AND APPARATUS FOR PROCESSING CAPTURED DIGITAL IMAGES OF OBJECTS WITHIN A SEMI-AUTOMATIC HAND-SUPPORTABLE IMAGING-BASED BAR CODE SYMBOL READER SO AS TO READ 1D AND/OR 2D BAR CODE SYMBOLS GRAPHICALLY REPRESENTED THEREIN'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2010Patents assigned to METROLOGIC INSTR INC (39)· patent assignee history

2006–2010Based in Suzhou, CN· patent location history

2009–2014Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (6)· patent assignee history

2009–2014Based in Sunnyvale, CA, US· patent location history

2012–2014Patents assigned to ZHANG WENHUA (3)· patent assignee history

2012–2014Patents assigned to WALMSLEY ROBERT G (2)· patent assignee history

2015–2019Patents assigned to MCUBE INC (11)· patent assignee history

2015–2019Based in San Jose, CA, US· patent location history

2020Based in Hong Kong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
METROLOGIC INSTR INC	39	2006–2010
MCUBE INC	11	2015–2019
HEWLETT PACKARD DEVELOPMENT CO	6	2009–2014
ZHANG WENHUAself	3	2012–2014
WALMSLEY ROBERT G	2	2012–2014

Locations

Location	Patents	Span
Suzhou, CN	40	2006–2010
San Jose, California, US	11	2015–2019
Sunnyvale, California, US	6	2009–2014
Hong Kong, CN	1	2020