PRINCETON TECHNOLOGY CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1596
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 12435
 
  
 
H03F AMPLIFIERS 1271
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 9150
 
  
 
H03L AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES 971
 
  
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 8143
 
  
 
H03K PULSE TECHNIQUE 8123
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 793
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 582
 
  
 
H03G CONTROL OF AMPLIFICATION 547

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9717126 Current control circuitsJul 13, 16Jul 25, 17[H05B]
9658982 Data structure product and method for interface transmissionMar 15, 13May 23, 17[G06F]
9648682 Current control circuitsAug 03, 16May 09, 17[H05B]
9634483 Electrostatic discharge (ESD) protection circuit with EOS and latch-up immunityMay 22, 14Apr 25, 17[H01L, H02H]
9380666 LED driving device and method for improving harmonic current distortion on a LED driving deviceAug 17, 15Jun 28, 16[H05B]
9354754 Touch devices having driving unit for detecting a touch point position and touch point position detection methods thereofJul 19, 11May 31, 16[G06F]
9261546 Touch sensing circuit and methodMar 15, 13Feb 16, 16[H03K, G06F, G01R]
9197207 Touch sensor circuit and touch display deviceNov 22, 12Nov 24, 15[H03K, G06F]
9161405 Light emitting diode driving circuit and systemJan 24, 12Oct 13, 15[H05B]
9144124 Method and apparatus for driving light emitting diodeMay 21, 13Sep 22, 15[H05B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0153,405 AUTOMATIC TESTING SYSTEM AND METHODAbandonedDec 04, 13Jun 04, 15[G01R]
2014/0292,832 DISPLAY DEVICE, DISPLAY CONTROL DEVICE, AND DISPLAY CONTROL METHOD FOR THE SAMEAbandonedMar 12, 14Oct 02, 14[G09G]
2014/0209,689 SMART CARDAbandonedMar 07, 13Jul 31, 14[G06K]
2014/0203,724 LED DRIVER CIRCUITAbandonedJun 26, 13Jul 24, 14[H05B]
2014/0139,449 TRANSMISSION INTERFACE FOR A TOUCH SYSTEMAbandonedMar 12, 13May 22, 14[G06F]
2014/0050,287 DATA SLICER FOR REDUCING SYSTEM START-UP TIME AND RECEIVER WITH THE SAMEAbandonedMar 07, 13Feb 20, 14[H04B]
8654156 Driver circuit of display and method for calibrating brightness of displayExpiredDec 30, 09Feb 18, 14[G09G]
8569984 Motor controllerExpiredOct 12, 11Oct 29, 13[H02K, G05D]
8526194 Anti-ultraviolet memory device and fabrication method thereofExpiredMay 25, 11Sep 03, 13[H01L, H05K]
8514212 Drive circuit of display and method for calibrating brightness of displayExpiredNov 09, 09Aug 20, 13[G09G]
8471599 Adjustable voltage comparing circuit and adjustable voltage examining deviceExpiredMay 24, 11Jun 25, 13[H03K]
8421474 Circuit test apparatusExpiredOct 02, 08Apr 16, 13[G01R]
8412762 Error-correcting method used in data transmission and decodingExpiredApr 28, 08Apr 02, 13[G06F]
2013/0080,668 INTEGRATED CIRCUT WITH SERIAL INTERFACE, RECEIVING TRANSMITTAL INFORMATION CONFORMING TO TWO COMMUNICATION PROTOCOLSAbandonedSep 10, 12Mar 28, 13[G06F]
8405684 Method and apparatus for calibrating the brightness of the carbon nanotube displayExpiredSep 23, 09Mar 26, 13[G09G]
8373955 Electrostatic discharge protection devicesExpiredMar 05, 10Feb 12, 13[H01C, H02H]
8363911 Image identification apparatus and method for comparing an image frame with a predetermined imageExpiredApr 22, 09Jan 29, 13[G06K]
8345055 Image display deviceExpiredDec 30, 09Jan 01, 13[H04N, G09G, G06F]
8324880 Power converting system with function of reducing dead-timeExpiredJul 02, 10Dec 04, 12[G05F]
8269517 Handler and method for testing the sameExpiredDec 21, 09Sep 18, 12[G01R]

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