Resources Contact Us Home
Key input device and character input method using directional keys

Image Number 14 for United States Patent #6897849.

A key input device is provided for inputting digits/letters/characters/symbols by a keypad and a character input method for the key input device. In the key input device, a mode key is pressed to select one of a plurality of key matrixes for a corresponding mode, which is displayed on a display. A first directional key is used for inter-cell movement in the displayed key matrix and a second directional key is used to select an intended digit/letter/character/symbol within a cell. In the character input method, a mode with a unique key matrix is set by pressing a mode key. An intended cell is moved to within the key matrix by pressing a first directional key. An intended digit/letter/character/symbol is selected in the cell by pressing a second directional key. The selected digit/letter/character/symbol is displayed on a display.

  Recently Added Patents
Telephone line seizure module
Radio transmitter and radio receiver with channel condition assessment
Process for shaping polymeric articles
Method for forming contact in an integrated circuit
Methods of making a diagnostic device by interweaving hydrophobic and hydrophilic fibers, and diagnostic device therefrom
Conversion of 5-(chloromethyl)-2-furaldehyde into 5-methyl-2-furoic acid and derivatives thereof
Lithographic apparatus and device manufacturing method
  Randomly Featured Patents
Acid-blocked amine catalysts for the production of polyurethanes
Supporting profile
Recording apparatus and recording method, reproducing apparatus and reproducing method, and recording medium
Method and apparatus for controlling the motion of a robotic device
Laundry basket with knuckle protection
LED lamp having a heat-dispersing unit
Device for holding helically wound wire resistor of a wire-wound type potentiometer
Seat belt tension sensor
Byte synchronization system and method using an error correcting code
Microcomputer system using repeated reset to enter different operating modes and method to do the same