Keyboard device with direction-pointing function and method

Abstract

The invention discloses a keyboard device with directing function and the method thereof. And the keyboard device comprises keyboard device, directing device, scanning bus and keyboard controller, where the keyboard controller comprises matrix scanner, key signal generator, processing unit, host computer bus interface and internal bus; the keyboard device is integrated with the directing device and a directing matrix circuit in the directing device is formed by newly adding wires to a keyboard matrix circuit in the keyboard device. When a key-pressing action occurs, the keyboard controller obtains a matrix address signal with the matrix scanner and the key signal generator, and judges and processes it by the processing unit and finally transmits a signal through the internal bus to the host computer bus interface to the host computer to execute.

Description

technical field [0001] The present invention relates to a keyboard device and its method, in particular to a keyboard device with pointing function and its method. Background technique [0002] General notebook computers are based on the convenience of portability and space saving. Various forms of pointing devices are integrated into the notebook computer to replace the hard-to-carry desktop mouse. Various forms of pointing devices such as keyboards simulate mouse functions and touch panels. Pointing device (TouchPad), trackball (TrackBall), trackstick (TrackPoint) and so on. [0003] As shown in the known keyboard simulating mouse device of Fig. 9, the known technology uses the function switching key 310 to switch the function of simulating mouse buttons on the keyboard 31 in terms of simulating cursor movement. Key function; Simulate the right mouse button 312, the function is the same as the right mouse button function; Control the cursor move left key 313, control the ...

AI Technical Summary

Problems solved by technology

However, the above-mentioned functions can only be used to control the movement of the cursor in the up, down, left and right directions. For example, in US Patent No. 6,100,875, the function of pressing the keyboard to simulate the mouse is difficult to precisely control the cursor to move to the designated target.

[0004] As shown in Figure 10, the known touchpad pointing device is the most commonly used pointing device for notebook computers today. The cursor movement is controlled by touching the touchpad pointing device 41, but it needs to be touched repeatedly in use. The control board pointing device 41 is used to control the cursor, so that the cursor can be moved to the target position, making it difficult to control

And as the touch panel pointing device of US Pat. The cost of pointing devices on the control board is generally high, which indirectly increases the production cost of the notebook computer

Images