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

Image Number 11 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
Information processing using batch setting information
Case for electronic device
Local access to data while roaming with a mobile telephony device
Device for accurately measuring concentration of component in blood and control method of the device
Self-correcting amplifier system
  Randomly Featured Patents
Method and apparatus for digitally adjusting white balance
Compositions for dynamic balancing
Variable displacement wobble plate type compressor with a solenoid operated wobble angle control unit
Electro-mechanical system for non-duplication of video files
Trapping system for fruit flies
Pharmaceutical composition comprising factor VII polypeptides and factor V polypeptides
Integration of capacitive elements in the form of perovskite ceramic
MMIC transceiver and low cost subharmonically driven microwave receiver
Method and system for enhancing bit rate in DMT quad spectrum systems
Electrical component, such as a radio, audio component, battery charger or radio/charger