Data input system with pointing device
First Claim
1. A pointing device data input system having a pointing device for designating a two-dimensional coordinate point on a display screen, a keyboard device having a key code generator for generating a key code corresponding to each one of keys constituting a key matrix, and a data processing device connected to said keyboard device through a keyboard interface, said keyboard device comprising:
- pointing device interface means, arranged in said keyboard device, for connecting said pointing device and said keyboard device; and
pointing device key code generating means for receiving, through said pointing device interface means, data from said pointing device, assigning the received data to a nondefined key code, and for outputting the nondefined key code to said data processing device as a defined key code from said keyboard device.
1 Assignment
0 Petitions
Accused Products
Abstract
According to a data input system with a pointing device, a keyboard device is provided with a pointing device interface and a key code generator. The keyboard device incorporates a microprocessor for generating a key code corresponding to a depressed key. The key code generator assigns data input through the pointing device interface to a nondefined key code. The data from the pointing device having been assigned a nondefined key code, is supplied as a key code from the keyboard device to a keyboard interface in a data processing device. The data processing device checks a specific bit of the data supplied thereto and determines that the received data is data originally supplied from the pointing device.
-
Citations
3 Claims
-
1. A pointing device data input system having a pointing device for designating a two-dimensional coordinate point on a display screen, a keyboard device having a key code generator for generating a key code corresponding to each one of keys constituting a key matrix, and a data processing device connected to said keyboard device through a keyboard interface, said keyboard device comprising:
-
pointing device interface means, arranged in said keyboard device, for connecting said pointing device and said keyboard device; and pointing device key code generating means for receiving, through said pointing device interface means, data from said pointing device, assigning the received data to a nondefined key code, and for outputting the nondefined key code to said data processing device as a defined key code from said keyboard device. - View Dependent Claims (2, 3)
-
Specification