Abstract: An electronic door lock and a method for automatically judging a locking/unlocking direction of the electronic door lock are provided. The electronic door lock includes a latch assembly, a lock body, a transmission rod, a locking detection module, a motor module and a motion detection circuit board. The transmission rod is connected with the latch assembly for controlling the latch assembly. The motion detection circuit board is electrically connected with the motor module and the locking detection module. The motion detection circuit board controls the motor module to drive the transmission rod. Consequently, a latch bolt of the latch assembly is protruded out in a first direction or a second direction. By detecting the status of the transmission rod, the locking detection module judges whether the latch bolt is protruded to a locking position.

Abstract: A battery switching method applicable to an electronic device is provided. The electronic device comprises a first battery and a second battery. The method comprises: (a) switching the electronic device to a sleep mode from a normal mode; (b) switching a power supply of the electronic device to the second battery according to a removing signal triggered by removing the first battery; (c) switching the power supply of the electronic device to the first battery according to an inserting signal triggered by inserting the first battery; (d) updating parameters of the first battery; and (e) switching the electronic device to the normal mode from the sleep mode.

Abstract: A battery switching method applicable to an electronic device is provided. The electronic device comprises a first battery and a second battery. The method comprises: (a) switching the electronic device to a sleep mode from a normal mode; (b) switching a power supply of the electronic device to the second battery according to a removing signal triggered by removing the first battery; (c) switching the power supply of the electronic device to the first battery according to an inserting signal triggered by inserting the first battery; (d) updating parameters of the first battery; and (e) switching the electronic device to the normal mode from the sleep mode.

Abstract: A method for determining the orientation of Chinese words is provided. The amount of dark pixels in each column of a Chinese word image is calculated. Then, a first point, a second point, and a third point are determined. The first point and the second point correspond to the columns with the largest and the second largest amount of dark pixels, respectively. The third point is located between the first point and the second point. The Chinese word is right-side up if the third point is located on the left side of the Chinese word. The Chinese word is upside down if the third point is located on the right side of the Chinese word.

Abstract: A method for recognizing characters is provided. All the characters to be recognized are categorized into a plurality of character categories according to the relative positions of the characters in the typographical lines before the characters are recognized. When recognizing the characters, a character is compared with only those characters in the corresponding character category of the character in the character database. Therefore, the range and number of characters to be compared are reduced, and the accuracy and speed for recognizing characters are improved.

Abstract: A method for generating typographical line is provided. In the present method, an asymptote of an upper or a lower edge of a line of printing words is obtained first. Then, two typographical lines of the other edge of the line of printing words are obtained according to the asymptote. Two typographical lines of the present edge of the line of printing words are obtained based on the previously obtained typographical lines. Finally, the relations of these typographical lines and edge reference points of the line of printing words are used for removing useless typographical lines. Therefore, the typographical lines obtained by the present invention can provide the means of recognizing word direction, large or small character writing, and punctuation marks, so as to increase the efficiency and accuracy of character recognition.

Abstract: A method for determining the orientation of Chinese words is provided. The amount of dark pixels in each column of a Chinese word image is calculated. Then, a first point, a second point, and a third point are determined. The first point and the second point correspond to the columns with the largest and the second largest amount of dark pixels, respectively. The third point is located between the first point and the second point. The Chinese word is right-side up if the third point is located on the left side of the Chinese word. The Chinese word is upside down if the third point is located on the right side of the Chinese word.

Abstract: A method for recognizing characters is provided. All the characters to be recognized are categorized into a plurality of character categories according to the relative positions of the characters in the typographical lines before the characters are recognized. When recognizing the characters, a character is compared with only those characters in the corresponding character category of the character in the character database. Therefore, the range and number of characters to be compared are reduced, and the accuracy and speed for recognizing characters are improved.

Abstract: A method for generating typographical line is provided. In the present method, an asymptote of an upper or a lower edge of a line of printing words is obtained first. Then, two typographical lines of the other edge of the line of printing words are obtained according to the asymptote. Two typographical lines of the present edge of the line of printing words are obtained based on the previously obtained typographical lines. Finally, the relations of these typographical lines and edge reference points of the line of printing words are used for removing useless typographical lines. Therefore, the typographical lines obtained by the present invention can provide the means of recognizing word direction, large or small character writing, and punctuation marks, so as to increase the efficiency and accuracy of character recognition.