Patent ID: 7616194

Claim:
A key lock means for a tablet personal computer, comprising: a graphic input device for generating a first signal and transmitting the first signal to an operating system of the tablet personal computer, the graphic input device including a first signal control element for controlling the transmission of the first signal; a typing input device for generating a second signal and transmitting the second signal to the operating system of the tablet personal computer, the typing input device including a second signal control element for controlling the transmission of the second signal; and means for signal associating so as to monitor and control the transmitting process of the first and second signals, wherein when the first signal is detected, the means for signal associating prevents the typing input device from transmitting the second signal into the operating system of the tablet personal computer; wherein when the first signal is generated, a third signal is revealed from the first signal control element to inform the means for signal associating to command the second signal control element not to transmit the second signal to the operating system of the tablet personal computer.