Abstract: A method for text input using a preset digit of a human hand includes steps of sensing a primary feature of the preset digit of the human hand, sensing a secondary feature of the preset digit of the human hand, combining the sensed primary feature with the sensed secondary feature to create an input unit, associating characters to be input with primary features to be sensed and secondary features to be sensed, comparing the input unit with the primary features to be sensed and the secondary features to be sensed associated with the characters to be input to retrieve a character intended to be input corresponding to the input unit, and repeating the sensing primary feature step, the sensing secondary feature step, the combining step and the comparing step until a text to be input is completely input.

Abstract: A method for inputting multi-language texts in digital devices and/or electronic devices comprises steps of determining syllables in texts to be input, separating the texts to be input into text units for inputting according to the determined syllables therein, inputting the texts to be input via inputting the text units one by one in sequence, defining an original position for a hand of users for inputting, defining at least one operation direction directing away from the original position, defining at least one inputting position along each of the at least one operation direction, assigning an alphabet to the each of the at least one inputting position, and inputting the texts to be input by moving at least one finger of the hand from the original position to the each of the at least one inputting position.

Abstract: A three dimensional (3D) printer comprises at least one printer robot, and each of the at least one printer robot comprises a printer head used for printing out printing material to execute 3D printing commands, a locator being capable of sensing a position of the printer head, and a processor being data communicable with the printer head and the locator. The processor is used for receiving the 3D printing commands wirelessly, retrieving the sensed position of the printer head from the locator, and controlling the printer head to adjust the position of the printer head for printing out the printing material based on the received 3D printing commands. Each of the at least one printer robot further comprises at least three robot legs. The at least three robot legs are capable of situating on a working table for weight support of the at least one printer robot during 3D printing.

Abstract: A method for inputting multi-language texts in digital devices and/or electronic devices comprises steps of determining syllables in texts to be input, separating the texts to be input into text units for inputting according to the determined syllables therein, inputting the texts to be input via inputting the text units one by one in sequence, defining an original position for a hand of users for inputting, defining at least one operation direction directing away from the original position, defining at least one inputting position along each of the at least one operation direction, assigning an alphabet to the each of the at least one inputting position, and inputting the texts to be input by moving at least one finger of the hand from the original position to the each of the at least one inputting position.