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
Intelligent sensor network
Piezoelectric speaker and method of manufacturing the same
Method and system for Bluetooth low power link layer connection setup
Automated pizza preparation and vending system
Fire detector
Catecholic butanes and use thereof for cancer therapy
Method and system for remote delivery of email
  Randomly Featured Patents
Method of forming cooling ducts in cast resin coils
Rotary vane compressor with outlet pressure biased lubricant
Compound bow draw position indicating device
Vehicle lamp
Hexagonal tool bit set
Method and apparatus for image forming of effectively detecting image data
Non-steroidal anti-inflammatory compounds and compositions thereof
Film formation method and apparatus for forming silicon-containing insulating film
Method and apparatus for coding a video data stream of a video sequence formed of image blocks
Mold release coating process and apparatus using a supercritical fluid