Abstract: A method for identifying reference points in a hand drawing track with a number (n) of dots includes marking a first one of the dots as a reference point; for each of a (kth) one of the dots, determining an included angle; marking the (kth) one of the dots as a reference point when the included angle associated therewith is larger than a predetermined angle; calculating an accumulated distance between the (kth) one of the dots and a last one of the reference point (s) thus marked when the included angle is not larger than the predetermined angle; and marking the (kth) one of the dots as a reference point when it is determined that the accumulated distance thus calculated is larger than the predetermined distance, 2?k?(n?1).

Abstract: A method for identifying reference points in a hand drawing track with a number (n) of dots includes marking a first one of the dots as a reference point; for each of a (kth) one of the dots, determining an included angle; marking the (kth) one of the dots as a reference point when the included angle associated therewith is larger than a predetermined angle; calculating an accumulated distance between the (kth) one of the dots and a last one of the reference point (s) thus marked when the included angle is not larger than the predetermined angle; and marking the (kth) one of the dots as a reference point when it is determined that the accumulated distance thus calculated is larger than the predetermined distance, 2?k?(n?1).

Abstract: A device for driving movement of a piece of cloth to be embroidered includes a driving unit for driving a mounting seat to move relative to a base unit. A cloth-holding frame device holds tensionally the piece of cloth between inner and outer frames, and includes an identification module mounted to a connecting block of the outer frame that is mounted detachably to mounting seat for generating an identification output corresponding to an embroidery area defined in the cloth-holding frame device. When the connecting block is connected to the mounting seat, the identification module is coupled to a control unit via a connecting port of the mounting seat. The control unit controls the driving unit based on the identification output from the identification module so that embroidery operation is performed on the piece of cloth disposed within the embroidery area in the cloth-holding frame device.

Abstract: A device for driving movement of a piece of cloth to be embroidered includes a driving unit for driving a mounting seat to move relative to a base unit. A cloth-holding frame device holds tensionally the piece of cloth between inner and outer frames, and includes an identification module mounted to a connecting block of the outer frame that is mounted detachably to mounting seat for generating an identification output corresponding to an embroidery area defined in the cloth-holding frame device. When the connecting block is connected to the mounting seat, the identification module is coupled to a control unit via a connecting port of the mounting seat. The control unit controls the driving unit based on the identification output from the identification module so that embroidery operation is performed on the piece of cloth disposed within the embroidery area in the cloth-holding frame device.