Assignee
TANDY CORP
US130 patents
Top patents by PatentIndex Score
US5424903AJun 13, 1995
Intelligent power switcher
TANDY CORP287 citations97
US5294889AMar 15, 1994
Battery operated capacitance measurement circuit
TANDY CORP134 citations96
US5103498AApr 7, 1992
Intelligent help system
TANDY CORP351 citations96
US5029982AJul 9, 1991
LCD contrast adjustment system
TANDY CORP248 citations96
US5473686ADec 5, 1995
Echo cancellation apparatus
TANDY CORP67 citations94
US5434394AJul 18, 1995
Automated order and delivery system
TANDY CORP396 citations94
US5310997AMay 10, 1994
Automated order and delivery system
TANDY CORP375 citations94
US5090052AFeb 18, 1992
Telephone system with multiple extension telephones
TANDY CORP135 citations94
US4894792AJan 16, 1990
Portable computer with removable and replaceable add-on modules
TANDY CORP199 citations94
US4503429AMar 5, 1985
Computer graphics generator
TANDY CORP60 citations94
US5657384AAug 12, 1997
Full duplex speakerphone
TANDY CORP56 citations93
US5261072ANov 9, 1993
Compact disk data transfer system using cache memory
TANDY CORP107 citations93
US4996709AFeb 26, 1991
Intercom telephone
TANDY CORP129 citations93
US4825200AApr 25, 1989
Reconfigurable remote control transmitter
TANDY CORP366 citations93
US5254984AOct 19, 1993
VGA controller for displaying images having selective components from multiple image planes
TANDY CORP53 citations92
US5231624AJul 27, 1993
System and method using a reduce profile light beam for high density recording on optical media
TANDY CORP32 citations92
US5218432AJun 8, 1993
Method and apparatus for merging video data signals from multiple sources and multimedia system incorporating same
TANDY CORP49 citations92
US5208801AMay 4, 1993
Method and apparatus for correcting focus in an optical recording system
TANDY CORP25 citations92
US5185655AFeb 9, 1993
Method and apparatus for encoding full color video data signals and protocol for encoding same
TANDY CORP38 citations92
US5174539ADec 29, 1992
Reversible mounting bracket for electronic devices
TANDY CORP37 citations92
US5142398AAug 25, 1992
Timer system for learning and replaying of infrared signals
TANDY CORP28 citations92
US5091939AFeb 25, 1992
Method and apparatus for password protection of a computer
TANDY CORP92 citations92
US5014259AMay 7, 1991
Recording medium having an insulating layer
TANDY CORP33 citations92
US4918682AApr 17, 1990
Ablative and bump-forming optical recording media including a metallic reflective layer
TANDY CORP30 citations92
US4852077AJul 25, 1989
Optical data storage media with spatially variable energy absorptivity
TANDY CORP38 citations92
US4679166AJul 7, 1987
Co-processor combination
TANDY CORP78 citations92
US4590556AMay 20, 1986
Co-processor combination
TANDY CORP83 citations92
US4469919ASep 4, 1984
Telephone answering device
TANDY CORP33 citations92
US5258826ANov 2, 1993
Multiple extended mode supportable multimedia palette and multimedia system incorporating same
TANDY CORP40 citations91
US5220410AJun 15, 1993
Method and apparaus for decoding encoded video data
TANDY CORP34 citations91
USD329238SSep 8, 1992
Universal remote controller
TANDY CORP58 citations91
US5031119AJul 9, 1991
Split screen keyboard emulator
TANDY CORP63 citations91
US4821182AApr 11, 1989
Memory address decoding system
TANDY CORP28 citations91
US4649514AMar 10, 1987
Computer revision port
TANDY CORP26 citations91
US4625301ANov 25, 1986
Dynamic memory refresh circuit
TANDY CORP32 citations91
US4545016AOct 1, 1985
Memory management system
TANDY CORP55 citations91
US5418910AMay 23, 1995
Dual buffer cache system for transferring audio compact disk subchannel information to a computer
TANDY CORP20 citations90
US5396168AMar 7, 1995
Digital multimeter with microprocessor control
TANDY CORP46 citations90
US5187469AFeb 16, 1993
Universal remote control including quick touch function
TANDY CORP46 citations90
US5147986ASep 15, 1992
Subwoofer speaker system
TANDY CORP100 citations90
US5207596AMay 4, 1993
Solderless coaxial wire connector and method for attachment
TANDY CORP27 citations89
US5090008AFeb 18, 1992
Erasable recording media
TANDY CORP29 citations89
US5594601AJan 14, 1997
Method of programming audio tracks in a sequential medium
TANDY CORP37 citations88
US4928189AMay 22, 1990
Multifunctional magnetic head cleaning media
TANDY CORP23 citations88
US4893209AJan 9, 1990
Multifunctional magnetic head cleaning media
TANDY CORP24 citations88
US5533120AJul 2, 1996
Acoustic feedback cancellation for equalized amplifying systems
TANDY CORP72 citations86
US5480325AJan 2, 1996
Coaxial connector plug and method for assembly
TANDY CORP30 citations86
US5563952AOct 8, 1996
Automatic dynamic VOX circuit
TANDY CORP57 citations85
US4866423ASep 12, 1989
Overhead sprinkler head proximity alarm
TANDY CORP50 citations83
US5548784AAug 20, 1996
Automatic disk change detection without causing head movement by step pulses
TANDY CORP26 citations82
Showing the top 50 of 130 patents by PatentIndex Score.