Closed loop dynamic capacitance measurement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9360511
APP PUB NO 20150108986A1
SERIAL NO

14245881

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

This disclosure provides systems, methods and apparatus for measuring capacitance of a display unit, such as an interferometric modulator (IMOD). In one example, a circuit may include an operational amplifier (op-amp), a voltage controlled current source, and feedback from an output of the op-amp as an input to the voltage controlled current source. An output of the voltage controlled current source may be provided to a display unit as well as an input of the op-amp. A second input of the op-amp may be provided a ramping reference voltage.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SNAPTRACK, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edgar, James Steven San Diego, US 2 2
Kawamoto, Robert Steven San Diego, US 2 2
Van, Lier Wilhelmus Johannes Robertus San Diego, US 28 153
Varma, Pramod Kumar La Jolla, US 1 2

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 7, 2023
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 7, 2027
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00