Inventor
PRITCHARD ERIC K
US36 patents
⚠️ This page may combine multiple inventors who share the name “PRITCHARD ERIC K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PRITCHARD ERIC K
15 patentsUS5133014AJul 21, 1992
Semiconductor emulation of tube amplifiers
PRITCHARD ERIC K53 citations96
US4995084AFeb 19, 1991
Semiconductor emulation of tube amplifiers
PRITCHARD ERIC K56 citations96
US4262336AApr 14, 1981
Multi-axis contouring control system
PRITCHARD ERIC K89 citations96
US5361667ANov 8, 1994
Termination for strings of a musical instrument
PRITCHARD ERIC K21 citations92
US4809336AFeb 28, 1989
Semiconductor amplifier with tube amplifier characteristics
PRITCHARD ERIC K35 citations92
US4584512AApr 22, 1986
Microstepping drives with waveform tuning and microprocessor control
PRITCHARD ERIC K28 citations92
US4449196AMay 15, 1984
Data processing system for multi-precision arithmetic
PRITCHARD ERIC K51 citations92
US4350943ASep 21, 1982
Amplifier for inductive loads with corrective current sensing
PRITCHARD ERIC K29 citations92
US4087732AMay 2, 1978
Digital stepping motor device circuit
PRITCHARD ERIC K41 citations92
US4214823AJul 29, 1980
Animation stand control system
PRITCHARD ERIC K23 citations82
US4140956AFeb 20, 1979
Digital stepping motor drive circuit
PRITCHARD ERIC K20 citations82
US4339701AJul 13, 1982
Switching frequency stabilization and load fault detection in switching amplifiers
PRITCHARD ERIC K9 citations74
US4302712ANov 24, 1981
Method of minimizing resonance in stepping motor and improved driver therefor
PRITCHARD ERIC K15 citations74
US4272713AJun 9, 1981
Switching transconductance amplifier for inductive loads
PRITCHARD ERIC K7 citations74
US4100471AJul 11, 1978
Stepping motor control circuit
PRITCHARD ERIC K15 citations74
(unassigned)
11 patentsUS6411720B1Jun 25, 2002
Speaker systems with lower frequency of resonance
45 citations92
US6057737AMay 2, 2000
Non-linear asymmetrical audio amplifiers
26 citations92
US5761316AJun 2, 1998
Variable and reactive audio power amplifier
25 citations92
US5761317AJun 2, 1998
Tube amplifier fat emulation structure
27 citations92
US5734725AMar 31, 1998
Tube emulator amplifier system
19 citations92
US5636284AJun 3, 1997
Solid state emulation of vacuum tube audio power amplifiers
34 citations92
US5802182ASep 1, 1998
Audio process distortion
18 citations84
US6631195B1Oct 7, 2003
Speaker attenuation for practicing a musical instrument
12 citations74
US5848165ADec 8, 1998
Fat sound creation means
14 citations74
US5805713ASep 8, 1998
Solid state circuit for emulating push-pull tube amplifier
10 citations74
US5434536AJul 18, 1995
Semiconductor emulation of vacuum tubes
18 citations74
VISION III IMAGING INC
3 patentsUS5325193AJun 28, 1994
Single camera autostereoscopic imaging system
VISION III IMAGING INC33 citations92
US5157484AOct 20, 1992
Single camera autosteroscopic imaging system
VISION III IMAGING INC31 citations92
US5014126AMay 7, 1991
Method and apparatus for recording images with a single image receiver for autostereoscopic display
VISION III IMAGING INC50 citations92