Abstract: A method for sending and acquiring WiFi networking information including generating, by a first WiFi-type smart device, a management frame that carries WiFi networking information; sending the management frame to be monitored by a second WiFi-type smart device; monitoring, by the second WiFi-type smart device, the management frame sent by the first WiFi-type smart device; and parsing the management frame to obtain the WiFi networking information, so that a network may be accessed by using the obtained WiFi networking information. The techniques of the present disclosure may reduce the time delay and technological complexity of a WiFi-type smart device in accessing a network.

Abstract: A method for sending and acquiring WiFi networking information including generating, by a first WiFi-type smart device, a management frame that carries WiFi networking information; sending the management frame to be monitored by a second WiFi-type smart device; monitoring, by the second WiFi-type smart device, the management frame sent by the first WiFi-type smart device; and parsing the management frame to obtain the WiFi networking information, so that a network may be accessed by using the obtained WiFi networking information. The techniques of the present disclosure may reduce the time delay and technological complexity of a WiFi-type smart device in accessing a network.

Abstract: A method for erasing electronic handwriting on a clipboard includes: the coordinates of each handwriting point of the electronic handwriting are made to correspond to writing pressure on the clipboard and are stored, and the color depth of each handwriting point is made to be proportional to the writing pressure at the handwriting point; the coordinates of each erase point, on the clipboard, contacted by the eraser are made to correspond to erasing pressure applied to the clipboard by the eraser via the erase points; determining whether the coordinates of the erase points are the same as one of the coordinates in the handwriting points, and if so, then determining the color depth at that erase point according to a first non-negative rule; otherwise, the color depth at the erase point is the background color depth of the clipboard.

Abstract: A method for erasing electronic handwriting on a clipboard includes: the coordinates of each handwriting point of the electronic handwriting are made to correspond to writing pressure on the clipboard and are stored, and the color depth of each handwriting point is made to be proportional to the writing pressure at the handwriting point; the coordinates of each erase point, on the clipboard, contacted by the eraser are made to correspond to erasing pressure applied to the clipboard by the eraser via the erase points; determining whether the coordinates of the erase points are the same as one of the coordinates in the handwriting points, and if so, then determining the color depth at that erase point according to a first non-negative rule; otherwise, the color depth at the erase point is the background color depth of the clipboard.

Abstract: A method for displaying handwriting in a PDF file includes: determining the embedding location of handwriting annotated in a PDF file; correspondingly recording coordinates and pressure data of each stroke point, on the screen, contacted by a stylus, and recording the sequence in which the stylus makes contact with the stroke points; establishing a correlation between pressure data and color, thus establishing a correlation between coordinates of the stroke points and color; displaying the stroke points in their colors, and connecting all of the stroke points according to the sequence in which the stylus makes contact with the stroke points, forming handwriting data, wherein color of the connecting line between consecutive stroke points is displayed according to a function; forming a graphic according to the handwriting data, and combining the handwriting data with the graphic to form an annotation; and embedding the handwriting annotation in the embedding.