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BLOOMINGTON, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Referenced magnetoresistives sensor band pass preamplifier
Patent number
6,111,716
Issue date
Aug 29, 2000
VTC Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to equalize input currents to differential-to-single-ended a...
Patent number
6,107,888
Issue date
Aug 22, 2000
VTC Inc.
John J. Price
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Three-phase generator boost circuit
Patent number
6,020,695
Issue date
Feb 1, 2000
VTC Inc.
David W. Kelly
G11 - INFORMATION STORAGE
Information
Patent Grant
Preamplifier bias circuit for use in an AC coupled magnetoresistive...
Patent number
6,005,733
Issue date
Dec 21, 1999
VTC, Inc.
Robert J. Schuelke
G11 - INFORMATION STORAGE
Information
Patent Grant
Automatic-tuning circuit for integrated continuous-time MOSFET-C fi...
Patent number
5,994,951
Issue date
Nov 30, 1999
VTC Inc.
Salman Mazhar
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High performance write driver for magnetic inductive recording head
Patent number
5,990,710
Issue date
Nov 23, 1999
VTC, Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Write driver with Schottky diodes to improve switching rate and rel...
Patent number
5,986,832
Issue date
Nov 16, 1999
VTC Inc.
Raymond E. Barnett
G11 - INFORMATION STORAGE
Information
Patent Grant
Automatic tracking frequency servo demodulation technique for DVCR...
Patent number
5,982,574
Issue date
Nov 9, 1999
VTC Inc.
William W. Leake
G11 - INFORMATION STORAGE
Information
Patent Grant
On-chip regulator providing good high frequency rejection and noise...
Patent number
5,942,934
Issue date
Aug 24, 1999
VTC Inc.
Tuan V. Ngo
G05 - CONTROLLING REGULATING
Information
Patent Grant
Apparatus for providing pair of complementary outputs with first an...
Patent number
5,920,729
Issue date
Jul 6, 1999
VTC Inc.
Raymond E. Barnett
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
MR head preamplifier with output signal amplitude which is independ...
Patent number
5,914,630
Issue date
Jun 22, 1999
VTC Inc.
Douglas R. Peterson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Differential transimpedance amplifier
Patent number
5,900,779
Issue date
May 4, 1999
VTC, Inc.
Joseph D. Giacomini
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Write driver with buffer circuits between pull-up resistors and upp...
Patent number
5,894,237
Issue date
Apr 13, 1999
VTC Inc.
Craig M. Brannon
G11 - INFORMATION STORAGE
Information
Patent Grant
Open-loop MR biasing circuit with high power supply and common mode...
Patent number
5,886,568
Issue date
Mar 23, 1999
VTC Inc.
Tuan V. Ngo
G05 - CONTROLLING REGULATING
Information
Patent Grant
Active damping for a disk drive write circuit
Patent number
5,880,626
Issue date
Mar 9, 1999
VTC, Inc.
Douglas Warren Dean
G11 - INFORMATION STORAGE
Information
Patent Grant
Multiplexer with CMOS break-before-make circuit
Patent number
5,872,477
Issue date
Feb 16, 1999
VTC Inc.
John J. Price
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
MR resistive-biasing scheme providing low noise high common-mode re...
Patent number
5,856,891
Issue date
Jan 5, 1999
VTC Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Self-biasing, low voltage, multiplying DAC
Patent number
5,835,039
Issue date
Nov 10, 1998
VTC Inc.
Joseph D. Giacomini
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Open-loop current mode biasing scheme for MR head
Patent number
5,834,952
Issue date
Nov 10, 1998
VTC Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Pseudo differential voltage sense MR preamplifier with improved ban...
Patent number
5,831,784
Issue date
Nov 3, 1998
VTC, Inc.
Raymond E. Barnett
G11 - INFORMATION STORAGE
Information
Patent Grant
High performance maximum and minimum circuit
Patent number
5,825,168
Issue date
Oct 20, 1998
VTC, Inc.
Kurt N. Kimber
G05 - CONTROLLING REGULATING
Information
Patent Grant
Method of fabricating a segmented emitter low noise transistor
Patent number
5,821,148
Issue date
Oct 13, 1998
VTC Inc.
John Leighton
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Open-loop MR biasing circuit with high power supply and common mode...
Patent number
5,812,019
Issue date
Sep 22, 1998
VTC Inc.
Tuan V. Ngo
G05 - CONTROLLING REGULATING
Information
Patent Grant
Amplifier having a differential input capacitance cancellation circuit
Patent number
5,793,551
Issue date
Aug 11, 1998
VTC Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Push-and-pull driver circuit for driving an H-bridge coupled to a t...
Patent number
5,781,046
Issue date
Jul 14, 1998
VTC, Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Modal transition imbalance detector
Patent number
5,781,042
Issue date
Jul 14, 1998
VTC Inc.
Peter J. Jung
G11 - INFORMATION STORAGE
Information
Patent Grant
Common-gate pre-driver for disc drive write circuit
Patent number
5,757,215
Issue date
May 26, 1998
VTC Inc.
Robert John Schuelke
G11 - INFORMATION STORAGE
Information
Patent Grant
Direct AC-coupled amplifier with improved common mode rejection for...
Patent number
5,757,566
Issue date
May 26, 1998
VTC Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Predriver for fast current switching through a two-terminal inducti...
Patent number
5,751,171
Issue date
May 12, 1998
VTC Inc.
Tuan V. Ngo
G11 - INFORMATION STORAGE
Information
Patent Grant
Segmented emitter low noise transistor
Patent number
5,723,897
Issue date
Mar 3, 1998
VTC Inc.
John Leighton
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73588940 - BASIC ASIC
Serial number
73588940
Registration number
1467021
Filing date
Mar 19, 1986
VTC INCORPORATED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73554212
Serial number
73554212
Registration number
1388924
Filing date
Aug 19, 1985
VTC INCORPORATED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73554224 - ON THE SILICON FRONTIER...
Serial number
73554224
Registration number
1409251
Filing date
Aug 19, 1985
VTC INCORPORATED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73531069 - VTC
Serial number
73531069
Registration number
1382128
Filing date
Apr 8, 1985
VTC INCORPORATED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments