Resources Contact Us Home
Method and apparatus for producing one-dimensional signals with a two-dimensional pointing device

Image Number 9 for United States Patent #7446754.

One-dimensional signals suitable for scrolling or other user interface functions are provided in response to two-dimensional inputs produced by a touchpad or other input device. A current chirality of the two-dimensional inputs is determined to have a first sense if the two-dimensional inputs exhibit a primary clockwise trajectory and a second sense if the two-dimensional inputs exhibit a primarily counter-clockwise trajectory. A one-dimensional variable is accumulated using a magnitude that is a function of a distance reflected by the two-dimensional inputs and a sign that is based upon the current chirality. The one-dimensional inputs to the computing system may then be extracted from the accumulated one-dimensional variable as appropriate. The methods may be modal, thereby allowing the same pointing device to be used for both two-dimensional and one-dimensional input.

  Recently Added Patents
Removable case
Austenitic stainless steel welding wire and welding structure
Integrated analyses of breast and colorectal cancers
Method and system for facilitating micropayments in a financial transaction system
Authentication service
Method and system for scaling usage of a social based application on an online social network
Device and implantation system for electrical stimulation of biological systems
  Randomly Featured Patents
Art board stand
Modular forming system for forming concrete foundation walls
Insulated gate transistor
Thin film transistor array substrate and electronic ink display device
Method and system for GPS augmentation of mail carrier efficiency
Hall effect fluid flow switch and flow meter
System and method for broadband pulse detection among multiple interferers using a picket fence receiver
Method and system for improving the contrast of LCDs using circular polarization
Holder for a plastic trash bag design
Intermediates for preparing vitamins A and E and carotenoids