Resources Contact Us Home
Data input apparatus

Image Number 4 for United States Patent #4274081.

A data input apparatus comprises a display device for displaying guidance information which designates types of data to be inputted as well as the order therefor, a key set having a plurality of keys arrayed in a matrix and a corresponding number of mats defining the functions of the individual keys which can be imparted with new definitions by changing over the associated mats, and a circuit adapted to select and change the mats defining the keys so that the various types of data indicated by the guidance information can be inputted in the order given by the guidance information. The mats can thus be replaced by other proper ones automatically without resorting to manual operation.

  Recently Added Patents
Power supply input voltage detection circuit
Information processing apparatus and power supply controlling method
Telephone relaying apparatus, telephone relaying method, and program
Camera system, video processing apparatus, and camera apparatus
Electric washing machine
System and method for configuring software applications in a motor vehicle
Apparatus for electrographic printing or copying
  Randomly Featured Patents
Multi-line access module for telephone set
Method for quality improvement of printing with a thermotransfer print head and arrangement for implementation of the method
High-performance change capture for data warehousing
Relay adapter circuit for trailer lamps
Pneumatic nail gun
Method and apparatus for updating system information in broadband wireless communication system
Circulating fluidized bed reactor with floored internal primary particle separator
Group III nitride LED with undoped cladding layer and multiple quantum well
Automobile body
Ball screw and electrically powered steering device having the ball screw