Resources Contact Us Home
Touch screen display circuit and voltage measurement circuit

Image Number 19 for United States Patent #6961015.

A touch screen display circuit is disclosed which includes means for measuring a voltage at two separate input terminals which represent a location on a touch screen where pressure was applied. The display circuit includes means for defining a time period during which the voltage is measured and means for converting the measured voltage to a digital value. The means for measuring a voltage includes an amplifier and a capacitor which are configured as an integrator. The means for converting comprises a counter that measures an amount of time required for the capacitor to dissipate its charge. A touch screen display system having a touch screen which includes first and second sheets of conductive materials positioned in a spaced apart relationship is disclosed. The touch screen display system utilizes a means coupled to the first and second sheets for measuring a voltage at two separate input terminals, a means for defining a time period during which the voltage is measured and a means for converting the voltage to a digital value.

  Recently Added Patents
Invisible fence battery charger
Magnetic memory element, driving method for same, and nonvolatile storage device
System and method for stranded file opens during disk compression utility requests
Flexible quantization
Security patch update processor
Method and apparatus for an active low power mode of a portable computing device
Flash memory apparatus and method for generating read voltage thereof
  Randomly Featured Patents
Process for the preparation of diphenylamine or nucleus-substituted derivative thereof
High pressure transducer
Anti-contamination valve for powder delivery system
Multi-mode light-emitting device for underwater applications
Angle measuring system with a clampable shaft
Device for monitoring a processing liquid
Light duty, forward acting stapling machine
Combined petroleum fuel spillage and overfill containment tank
Cable assembly having enhanced interconnection device thereof