C. Harry Knowles
228Patents
38h-index
93Co-inventors
93Inventor score
Filing activity: Jun 10, 1976 → Jul 3, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7128266B2 | Hand-supportable digital imaging-based bar code symbol reader supporting narrow-area and wide-area modes of illumination and image capture | Physics | 688 | Expired |
| US8317105B2 | Optical scanning system having an extended programming mode and method of unlocking restricted extended classes of features and functionalities embodied therewithin | Physics | 547 | Active |
| US8479992B2 | Optical code symbol reading system employing an acoustic-waveguide structure for coupling sonic energy, produced from an electro-transducer, to sound wave ports formed in the system housing | Physics | 540 | Active |
| US8517271B2 | Optical code symbol reading system employing a LED-driven optical-waveguide structure for illuminating a manually-actuated trigger switch integrated within a hand-supportable system housing | Physics | 533 | Active |
| US6709108B2 | OPHTHALMIC INSTRUMENT WITH ADAPTIVE OPTIC SUBSYSTEM THAT MEASURES ABERRATIONS (INCLUDING HIGHER ORDER ABERRATIONS) OF A HUMAN EYE AND THAT PROVIDES A VIEW OF COMPENSATION OF SUCH ABERRATIONS TO THE HUMAN EYE | Human Necessities | 236 | Expired |
| US6152369A | System for storing, accessing and displaying html encoded | Electricity | 200 | Expired |
| US6736321B2 | Planar laser illumination and imaging (PLIIM) system employing wavefront control methods for reducing the power of speckle-pattern noise digital images acquired by said system | Electricity | 180 | Expired |
| US6837432B2 | METHOD OF AND APPARATUS FOR AUTOMATICALLY CROPPING CAPTURED LINEAR IMAGES OF A MOVING OBJECT PRIOR TO IMAGE PROCESSING USING REGION OF INTEREST (ROI) COORDINATE SPECIFICATIONS CAPTURED BY AN OBJECT PROFILING SUBSYSTEM | Electricity | 154 | Expired |
| US5340971A | Automatic bar code reading system having selectable long range and short range modes of operation | Physics | 121 | Expired |
| US6517004B2 | Automated system for identifying and dimensioning packages transported through a laser scanning tunnel using laser scanning beam indexing techniques | Physics | 113 | Expired |
| US6068188A | System and method for composing menus of URL-encoded bar code symbols while using internet browser program | Electricity | 109 | Expired |
| US6360947B1 | AUTOMATED HOLOGRAPHIC-BASED TUNNEL-TYPE LASER SCANNING SYSTEM FOR OMNI-DIRECTIONAL SCANNING OF BAR CODE SYMBOLS ON PACKAGE SURFACES FACING ANY DIRECTION OR ORIENTATION WITHIN A THREE-DIMENSIONAL SCANNING VOLUME DISPOSED ABOVE A CONVEYOR BELT | Physics | 100 | Expired |
| US6345764B1 | Hand-held WWW access device with GUI-based www browser program integrated with bar code symbol reader for automatically accessing and displaying HTML-encoded documents by reading bar code symbols | Electricity | 99 | Expired |
| US6732929B2 | Led-based planar light illumination beam generation module employing a focal lens for reducing the image size of the light emmiting surface of the led prior to beam collimation and planarization | Physics | 91 | Expired |
| US6913202B2 | Planar laser illumination and imaging (PLIIM) engine | Electricity | 83 | Expired |
| US6976626B2 | Wireless bar code symbol driven portable data terminal (PDT) system adapted for single handed operation | Physics | 80 | Expired |
| US6739511B2 | METHOD OF SPECKLE-NOISE PATTERN REDUCTION AND APPARATUS THEREFOR BASED ON REDUCING THE TEMPORAL-COHERENCE OF THE PLANAR LASER ILLUMINATION BEAM BEFORE IT ILLUMINATES THE TARGET OBJECT BY APPLYING TEMPORAL PHASE MODULATION TECHNIQUES DURING THE TRANSMISSION OF THE PLIB TOWARDS THE TARGET | Electricity | 79 | Expired |
| US6827265B2 | Automatic vehicle identification and classification (AVIC) system employing a tunnel-arrangement of PLIIM-based subsystems | Electricity | 75 | Expired |
| US7086595B2 | 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 | Physics | 71 | Expired |
| US6283375A | Automatically-activated hand-supportable laser scanning bar code symbol reading system with data transmission activation switch | Physics | 66 | Expired |
| US6962289B2 | Method of and system for producing high-resolution 3-D images of 3-D object surfaces having arbitrary surface geometry | Electricity | 66 | Expired |
| US6622917B1 | System and method for composing sets of URL-encoded bar code symbols while using an internet browser program | Electricity | 64 | Expired |
| US7240844B2 | 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 | Physics | 62 | Expired |
| US7490774B2 | Hand-supportable imaging based bar code symbol reader employing automatic light exposure measurement and illumination control subsystem integrated therein | Physics | 58 | Expired |
| US7281661B2 | 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 | Physics | 55 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.