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Milpitas, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Over-voltage crowbar for lightning surge and ESD protection
Patent number
6,744,611
Issue date
Jun 1, 2004
System General Corporation
Ta-yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
PWM controller having a saw-limiter for output power limit without...
Patent number
6,674,656
Issue date
Jan 6, 2004
System General Corporation
Ta-yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
PWM controller having adaptive off-time modulation for power saving
Patent number
6,661,679
Issue date
Dec 9, 2003
System General Corporation
Ta-yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
PWM controller for controlling output power limit of a power supply
Patent number
6,611,439
Issue date
Aug 26, 2003
System General Corporation
Ta-yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply supervisor having a line voltage detector
Patent number
6,418,002
Issue date
Jul 9, 2002
System General Corp.
Ta-yung Yang
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Low distortion video analog-to-digital converter
Patent number
6,353,405
Issue date
Mar 5, 2002
System General Corp.
Ta-yung Yang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Fan speed pulse filter for a PWM fan
Patent number
6,262,549
Issue date
Jul 17, 2001
System General Corp.
Ta-yung Yang
G01 - MEASURING TESTING
Information
Patent Grant
Protection circuit for a boost power converter
Patent number
6,185,082
Issue date
Feb 6, 2001
System General Corporation
Ta-yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interface apparatus for fan monitoring and control
Patent number
6,135,718
Issue date
Oct 24, 2000
System General Corporation
Ta-yung Yang
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Adaptive slope compensator for current mode power converters
Patent number
5,903,452
Issue date
May 11, 1999
System General Corporation
Ta-yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75454003 - FLASH WRITER
Serial number
75454003
Registration number
2284819
Filing date
Mar 20, 1998
System General Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75454002 - SYSTEM GENERAL
Serial number
75454002
Registration number
2284818
Filing date
Mar 20, 1998
System General Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75454012 - ALLWRITER
Serial number
75454012
Filing date
Mar 20, 1998
System General Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments