Patent ID: 7253806

Claim:
A computer keyboard for inputting data, capable of being disconnected from a computer system, comprising: a standard press key, having a plurality of keys for entering character data; a keyboard microcontroller (MCU) for generating a character code corresponding to the key; a monitor, disposed on the operating panel of the keyboard; a monitor microcontroller (MCU) for driving the monitor to display a bitmapped graphic pattern of the character entered from the standard press key; a memory unit for saving the character code; and a power supply unit for supplying the electric power required by the computer system, wherein, upon resuming a connection with the computer system, the keyboard microcontroller (MCU) sends the character code stored in the memory unit to the computer system, receives the bitmapped graphic pattern corresponding to the character code returned from the computer system, and then sends the bitmapped graphic pattern to the monitor microcontroller (MCU) for driving the monitor to display the bitmapped graphic pattern on the monitor.