Locus-recordable portable handwriting device

A locus-recordable portable handwriting device, which is a portable computer handwriting device for recording a wireless stylus' locus, comprising:

• a microprocessor for fetching a set of parameters of the wireless stylus moving on the computer handwriting device and treating the same to become locus data;
• a power-saving time counter built in the microprocessor for judging whether the microprocessor is idle or not;
• a register also built in the microprocessor for recording a storage starting index;
• a memory for storing the locus data treated by the microprocessor;
• a display unit for indicating the wireless stylus' locus and a page code of the memory;
• a power control unit for supplying power to the microprocessor;
• a data clearance switch for controlling the microprocessor to clear the data stored in the memory;
• a memory-page scrolling switch for controlling the microprocessor to switch the memory to a user's designated page;
• a locus-color switching switch for controlling the microprocessor to change the present locus color;
• and
• a universal serial bus (USB) serving for a personal computer's communication interface.