JPS6029828A - Input system for drawn picture command - Google Patents

Abstract

PURPOSE:To simplify the structure and allow numbers of inputs by detecting the number of strokes of a drawn picture, etc., and transmitting commands corresponding to drawn picture symbols to a subscriber line and inputting the command. CONSTITUTION:A terminal device consists of a pen 1, digitizer 2, display device 3, and processor 4. When this terminal device inputs four kinds of command to a communication network, symbols shown in a figure are assigned to the respective commands. When a command is inputted, the symbol is drawn on the digitizer 2 with a pen 1, and the processor 4 scans its coordinates to discriminate and store coordinate values at every specific period, and detects whether the drawn picture has a terminal point or not from the coordinate values to perform sampling and patterning. The result is collated with the standard pattern of each symbol mentioned above to decide on the symbol of the drawn picture, and sends out the corresponding command to the subscriber line 5.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a terminal device equipped with a stroke detection means, and in particular a stroke command that allows commands to be input to an affiliated communication by drawing a simple symbol. Regarding the input method.

(bl Technology background) In recent years, the functions of communication networks and accommodating terminal devices have diversified, and the types of commands that must be input from the terminal devices to the communication network have also tended to increase. Devices that have the function of transmitting strokes are being put into practical use.

(C) Prior art and problems The simplest conventional command input method for this type of terminal device is to input a command that is equal to the number of types of commands in the terminal device.
buttons, etc. were provided, and the buttons and the like corresponding to the commands to be input were operated.

However, according to this method, the number of types of commands increases.

As a result, the number of buttons, etc. increases, but since there is a limit to the number of buttons, etc. that can be installed in small terminal devices, there is a drawback that a sufficient variety of commands cannot be input. In order to compensate for this drawback, attempts have been made to use a so-called soft key system in which a small number of buttons, etc. correspond to different commands depending on the status of the terminal device, and the corresponding commands are displayed on a display or the like.

According to this type of soft key type, the number of buttons etc. that need to be installed on the terminal device is reduced, but the communication network requires a means for displaying the corresponding command type on the display etc. according to the status of the terminal device. There are also limits to the character size and number of characters when displaying commands on the display screen, and this method cannot necessarily be said to be convenient for the communicator.

(d) Object of the Invention An object of the present invention is to eliminate the drawbacks of the conventional command input methods as described above, and to realize a means that allows a communicator to input a large number of commands in a simple manner.

(Ql.Structure of the Invention) This object is to detect at least any of the number of strokes, end points, intersections, and differential patterns of strokes in a terminal device equipped with a means for detecting the position of a handwriting pen;
This is achieved by providing means for identifying a predetermined stroke symbol drawn by the handwriting pen and means for transmitting a command corresponding to the identified symbol to the subscriber line, and inputting a command using the stroke symbol.

(fl　Embodiments of the invention An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a terminal device according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of a stroke command according to an embodiment of the present invention, and FIG. 3 corresponds to FIG. FIG. 4 is a diagram showing an example of the stroke command identification process in FIG. 1. In addition,
The same reference numerals refer to the same objects throughout the design. In FIG. 1, the terminal device includes a pen 1, a digitizer 2, a display 3, and a processor 4. Note that the pen 1 is equipped with a pen switch S that is normally in an open state and becomes a closed state when a stroke is started on the digitizer 2. When the terminal device inputs 4MN commands to a communication network (not shown), four kinds of symbols as shown in FIG. 2 are assigned to each command, namely, O1×, ■, and A. When the correspondent enters the desired command,
A corresponding symbol is drawn on the digitizer 2 with the pen 1.

In FIG. 4, the processor 4 is scanning the coordinates of the pen 1 with the digitizer 2 (step S1), and
When it is detected that the pen switch S of the pen 1 is in the closed state, the coordinate values on the digitizer 2 of the pen 1 are stored as 1ali Ma+ at each point in each predetermined cycle (step 3).
4). When the communicator finishes drawing the required symbol, the processor 4 interpolates the point in time when the coordinate value could not be identified from the previous and subsequent coordinate values (step S6), and then determines the closed state of the pen switch S and The presence or absence of an end point in the stroke is determined from the coordinate values (step S7). For example, the symbol O does not have an end point, but the other symbols ×, ■, and A do have end points. Furthermore, by examining the coordinate values, the presence or absence of an intersection in the stroke is identified (step S8). For example, an intersection exists for the symbol ×, but no intersection exists for the other symbols ○, ■, and 8. Next, the processor 4 performs normalization to remove fine meandering of the handwriting by sampling the coordinate positions corresponding to each time point at a longer cycle, and then differentiates one of the coordinate values (for example, the Y coordinate value). (Steps S9 and 510). The resulting differential coefficient changes from negative to positive over time in symbol V, but changes from positive to negative in symbol V. The endpoints, intersections, and differential coefficients of the strokes obtained through the above identification process are patterned (step 511), and compared with the standard patterns provided for each symbol O1×, ■ and shown in FIG. 3 (step 312). The matching symbol is determined to be a stroke symbol (Step 7 313). Processor 4 sends a command corresponding to the determined symbol to subscriber line 5.

As is clear from the above description, according to the present embodiment, the processor 4 is capable of identifying the simple symbols ○, ×, ■, and 8 drawn by a communicator on the digitizer 2 with the pen 1 through a simple process. Therefore, four types of commands can be input.

Note that FIGS. 1 to 4 are only one embodiment of the present invention, and for example, the symbols corresponding to each command are not limited to those shown in the figure. For example, if the pen 1 is the digitizer 2 Many other modifications may be considered, such as distinguishing based on the number of times the user touches the object, but the effects of the present invention remain the same in either case. Detecting such a number of times can be easily realized by inserting a step of identifying the number of strokes into the step shown in FIG. Further, the N classes of commands and the identification process are not limited to those shown in the drawings, and many other modifications may be considered, but the effects of the present invention remain the same in any case. Furthermore, it goes without saying that the configuration of the terminal device to which the present invention is applied is not limited to that shown in the drawings.

(l) Effects of the Invention According to the present invention, the terminal device can input a large number of commands to the affiliated communication network by quickly identifying the simple symbols drawn by the communicator through a simple process. In addition, the structure of the terminal device is simplified, and the convenience and economic efficiency of the terminal device are improved.

[Brief explanation of the drawing]

1 is a diagram showing a terminal device according to an embodiment of the present invention, FIG. 2 is a diagram illustrating an example of a stroke command according to an embodiment of the present invention, and FIG. 3 is a diagram showing a standard pattern corresponding to FIG. 2. FIG. 4 is a diagram showing an example of the stroke command identification process in FIG. 1. In the figure, 1 is a pen, 2 is a digitizer, 3 is a display, 4 is a processor, 5 is a subscriber line, and S is a pen switch, not shown. Construction 1 Figure ○ × V △ Early 2- Listen 3 Eye Houki 4 Flash

Claims (1)

[Claims] In a terminal device comprising a means for detecting the position of a handwriting pen, a means for determining at least one of the number of strokes, end points, intersections, and differential patterns of a stroke; This patented stroke command input method includes a means for identifying a stroke symbol and a means for transmitting a command corresponding to the identified symbol to a subscriber line, and is capable of inputting commands using stroke symbols.