Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Exposure method, exposure apparatus, and method for producing device
Integrated analyses of breast and colorectal cancers
Immunotherapy in cancer treatment
Image capture apparatus and program
Image decolorizing device
Air-fuel ratio control apparatus for an internal combustion engine
Detecting the type of NAT firewall using messages
  Randomly Featured Patents
Memory with output control
Ink compositions
5,7-disubstituted thiazolo[4,5-D]pyrimidines as chemokine inhibitors
Backlight unit having lamps disposed with various distances
Laser eye protective devices
Optical recording head and belt positioning apparatus
Image display apparatus and image display method
Packaging mechanism for a portable computer
Primer composition for silicone pressure-sensitive adhesives
Preventing access to a device from an external interface