Inventor
HUDRICK DONALD T
US23 patents
Patents
23 patentsUS6863217B2Mar 8, 2005
Automatic range adjustment techniques for stand-mountable bar code scanners
METROLOGIC INSTR INC235 citations99
US6637655B1Oct 28, 2003
Automatic range adjustment techniques for stand-mountable bar code scanners
METROLOGIC INSTR INC143 citations99
US5777315AJul 7, 1998
Method and apparatus for programming system function parameters in programmable code symbol readers
METROLOGIC INSTR INC129 citations99
US6595420B1Jul 22, 2003
Automatically-activated body-wearable laser scanning bar code symbol reading system having data-transmission activation switch
METROLOGIC INSTR INC41 citations96
US7611063B2Nov 3, 2009
Automatically-activated code symbol reading system
METROLOGIC INSTR INC8 citations93
US7325740B2Feb 5, 2008
Automatically-activated laser scanning 2D bar code symbol reading system employing a visible linear-type laser scanning pattern and an audible feedback signal during scan data capturing and buffering operations
METROLOGIC INSTR INC10 citations92
US7281663B2Oct 16, 2007
Wireless bar code symbol reading system having hand-supportable unit and remote base station
METROLOGIC INSTR INC13 citations92
US7172126B2Feb 6, 2007
Wireless automatic laser scanning bar code symbol reading system, wherein the RF-based transceiver chipsets within the wireless hand-supportable unit and base station thereof are automatically deactivated and said RF data communication link therebetween terminated when said system enters its power-saving sleep mode, and reactivated and re-established when re-entering its operational mode
METROLOGIC INSTR INC18 citations92
US7111786B2Sep 26, 2006
Automatically-activated wireless hand-supportable laser scanning bar code symbol reading system with data transmission activation switch and automatic communication range dependent control
METROLOGIC INSTR INC21 citations92
US7028904B2Apr 18, 2006
Wireless bar code symbol reading system capable of automatically collecting and storing symbol character data when hand-supportable unit is operated outside of its rf data communication range, and automatically transmitting stored symbol character data when the hand-supportable unit is operated within its rf data communication range
METROLOGIC INSTR INC16 citations92
US7007849B2Mar 7, 2006
Automatically-activated hand-supportable 2-d bar code symbol reading system employing a linear laser scanning pattern generator, an automatic bar code symbol data detector, audible data capture feedback generator, and a manually-activated data transmission activation switch
METROLOGIC INSTR INC12 citations92
US6540144B1Apr 1, 2003
Techniques for interfacing a bar code scanner to a PC using a keyboard retransmit protocol
METROLOGIC INSTR INC39 citations92
US6536666B1Mar 25, 2003
Techniques for interfacing a bar code scanner to a PC using a message-based and/or character-based keyboard inhibit
METROLOGIC INSTR INC26 citations92
US7614561B2Nov 10, 2009
Scanner flipper oscillation frequency detection and adjustment thereof
METROLOGIC INSTR INC7 citations74
US7464878B2Dec 16, 2008
Automatically-activated wireless hand-supportable laser scanning bar code symbol reading system with automatic communication range dependent control
METROLOGIC INSTR INC6 citations74
US7048192B2May 23, 2006
Wireless bar code symbol reading system employing a base station with a cradle having a hinged support hooks for enabling vertical and horizontal installations
METROLOGIC INSTR INC6 citations73
US7832641B2Nov 16, 2010
Scanner switched to active state by sensed movement in quiescent scanning mechanism
METROLOGIC INSTR INC5 citations63
US7686225B2Mar 30, 2010
Wireless code symbol reading system with automatic communication range dependent control
METROLOGIC INSTR INC4 citations63
US7549583B2Jun 23, 2009
Method for waking up in-counter fixed scanners
METROLOGIC INSTR INC4 citations63
US7278578B2Oct 9, 2007
Automatically-activated wireless laser scanning 2D bar code symbol reading system capable of automatically transmitting stored symbol character data when the hand-supportable unit is operated within its RF data communication range and automatically collecting and storing symbol character data when the hand-supportable unit is operated outside of its RF data communication range
METROLOGIC INSTR INC2 citations63
US7252238B2Aug 7, 2007
Automatically-activated hand-supportable laser scanning bar code symbol reading system with data transmission activation switch
METROLOGIC INSTR INC2 citations63
US8002183B2Aug 23, 2011
Scanner flipper integrity indicator
METROLOGIC INSTR INC0 citations52
US7137561B2Nov 21, 2006
Wireless laser scanning bar code symbol reading system employing a low-battery protection circuit, vibrational alarm and sleep mode of operation
METROLOGIC INSTR INC0 citations52