System Mouse Circuit Interface for Personal Computers
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02
A technique is described whereby a mouse, as used in the cursor manipulation of personal computers (PCs), has its interface circuitry incorporated within the mouse. It is designed so that the mouse circuitry can send information to and receive information from the host computer enabling it to be easily programmable and modified when adapted to individual software applications. The concept is an improvement over prior designs, which required a special circuit card to be installed in the host PC when operating a mouse. The circuit, as shown in Fig. 1, illustrates how the prior art required a special circuit interface card 10 to be installed within the host PC. Typically, from nine to twenty-five wires were used to connect mouse 11 to the host.