CN1991720A - Device for realizing automatic hand-write input - Google Patents

Abstract

The invention discloses a device for automatically realizing handwriting input, which includes: a handwriting board, a display screen, and a touch pen, and also includes: a handwriting process recognition unit for judging whether to perform handwriting input according to the relative action state of the touch pen and the handwriting board process; dot matrix recognition algorithm unit, used to store the algorithm for identifying the word according to the input track information; handwriting logic algorithm unit, used to call relevant algorithms from the dot matrix recognition algorithm unit according to the input track for character recognition, and perform other related Data reading, calculation and judging processing; handwriting completion processing unit, used to output the words after recognition processing. Compared with the prior art, the handwriting input device proposed by the present invention can automatically recognize the handwriting input state, and there is no need to set the handwriting input method during the input process, making the switching of handwriting input more concise and convenient.

Description

A device for automatic handwriting input

technical field

The invention relates to an input device for electronic products, in particular to a device for automatically realizing handwriting input.

Background technique

Keyboard input is currently the most traditional and common input method, but since most of the keyboards we use are English keyboards, if you want to input Chinese characters, you must use a Chinese character input method, although various keyboard-based The input methods of Chinese characters emerge in endlessly, such as: "Wubi", "Pinyin", "Smart ABC", "Zhengma" and so on. However, there are many shortcomings, such as: Pinyin input method has a lot of dialect interference, many homonyms, and a high code repetition rate, and Wubi input method inevitably needs to memorize codes, input rules, etc. Ease of use is the best of both worlds.

In recent years, the introduction of handwriting input methods has posed a huge challenge to keyboard input. It refers to the handwriting of electronic product terminals on the touch screen through the built-in stylus, and the touch screen converts various handwritten fonts into electronic characters through the internal recognition system. The standard fonts recognizable by the product terminal are displayed on the touch screen, which greatly improves the input speed; and the inputter can use it without additional training.

However, at present, handwriting input on traditional electronic product terminals is used alone as an input method. In electronic products where keyboard input and handwriting input coexist, Chinese character input needs to first select the handwriting input method or keyboard input. Mode, the switching between the two modes cannot be completed automatically, which is particularly inconvenient to use and has relatively large use limitations.

Contents of the invention

The technical problem to be solved by the present invention is to provide a device that can automatically realize handwriting input. The system can automatically identify the starting handwriting input state as required regardless of the initial input state of the electronic product terminal. The operation is simple and the implementation is convenient. .

The present invention is achieved through the following technical solutions:

A device for automatically realizing handwriting input, comprising: a tablet, a display screen, a stylus, and further comprising:

The handwriting process recognition unit is used for judging whether to carry out the handwriting input process according to the relative action state of the stylus and the tablet;

The dot matrix recognition algorithm unit is used to store the algorithm for recognizing the word according to the input track information;

The handwriting logic algorithm unit is used to call relevant algorithms from the dot matrix recognition algorithm unit for character recognition according to the input trajectory, and to read, calculate and judge other relevant data;

The handwriting completion processing unit is used for outputting the words after the recognition processing has been completed.

Further, the device also includes a handwriting state recognition unit, and the handwriting state recognition unit also includes:

The finger touch sensing unit is used to receive the handwriting trigger signal when the stylus touches the tablet;

The off-touch sensing unit is used for receiving a signal that the stylus leaves the tablet and completes the handwriting input.

Further, the tablet and the display screen are touch screens.

Further, the handwriting process recognition unit judges whether the stylus performs handwriting input according to the relative action state of the stylus and the handwriting board is realized by the following method: setting the first timer and the first set distance, judging whether the stylus performs handwriting input, Whether the movement distance of the pen within the first timer timing time on the handwriting board is greater than the first set distance, if so, it indicates that the touch pen is performing handwriting input.

Further, the moving distance of the stylus is calculated by calculating the position coordinates of the starting point and the ending point of the stylus on the tablet.

Further, the device further includes:

a keyboard operation sensing unit, configured to receive a key operation trigger signal;

The keyboard input unit is used to receive the input information of the keyboard under the keyboard input working state;

The keyboard input completion processing unit is used to combine the information input by the keyboard to generate Chinese characters, and output the result after confirmation.

Further, the output signal of the keyboard operation sensing unit triggers the handwriting state recognition unit to stop working, and the output signal of the handwriting state recognition unit triggers the keyboard input unit to stop working.

Compared with the prior art, the handwriting input device proposed by the present invention can automatically recognize the handwriting input state, and there is no need to set the handwriting input method during the input process, making the switching of handwriting input more concise and convenient.

Description of drawings

Fig. 1 is a structural diagram of an automatic handwriting input device in a specific embodiment of the present invention.

Fig. 2 is a flow chart of a method for automatically realizing handwriting input in a specific embodiment of the present invention.

Fig. 3 is a flowchart of the handwriting input process in a specific embodiment of the present invention.

Detailed ways

The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

With reference to Fig. 1, a kind of automatic handwriting input device comprises: key operation sensing unit 1, keyboard input unit 2, keyboard input completion processing unit 3, finger touch sensing unit 4, touch-off sensing unit 5, handwriting process identification unit 6, handwriting Trajectory receiving and display unit 7, dot matrix recognition algorithm unit 8, handwriting logic algorithm unit 9 and handwriting completion processing unit 10, wherein:

A keyboard operation sensing unit 1, configured to receive a key operation trigger signal;

The keyboard input unit 2 is used to receive the input information of the keyboard in the keyboard input working state after receiving the trigger signal of the keyboard input state;

The keyboard input completion processing unit 3 is used to identify and combine the information input by the keyboard, generate possible selected Chinese characters, and output the confirmed results to the display screen for display;

The finger-touch sensing unit 4 is used to receive the signal that the stylus touches the tablet, wherein a finger-touch timer is provided, and the finger-touch timer is cleared and restarted when the stylus touches the tablet;

The off-touch sensing unit 5 is used to receive the signal that the stylus leaves the tablet, wherein a off-touch timer is provided, and the off-touch is cleared and restarted when the stylus is off the tablet;

The handwriting process recognition unit 6 is used to judge whether the stylus performs handwriting input after receiving the handwriting state trigger signal and the stop handwriting state trigger signal;

The handwriting trace receiving and displaying unit 7 is used for temporarily storing and displaying the trace of the handwriting process;

Dot matrix recognition algorithm unit 8, is used for storing the algorithm that this word is recognized according to input trajectory information;

The handwriting logic algorithm unit 9 is used to call relevant algorithms from the dot matrix recognition algorithm unit 8 according to the input trajectory to perform character recognition and read, calculate and judge processing of other relevant data;

The handwriting completion processing unit 10 is used for outputting the characters after the recognition processing to the display screen for display.

As shown in Figure 2 and Figure 3, in the electronic product using this device, in the process of Chinese character input, if the keyboard input mode is used at first, and then it is converted into a manual input mode using the handwriting board, the system automatically The working process of realizing handwriting input is as follows:

Step 101: When the application program of the electronic product is started, the keyboard input unit 2 is started, the keyboard pinyin input method is loaded, and the interface of the input method is opened at the bottom of the screen;

Step 102: Use the combination of multiple keys on the keyboard that comes with the electronic product to input Chinese characters, and the keyboard input completion processing unit 3 performs confirmation of the input of Chinese characters and output display;

Take the mobile phone as an example: input "promote", press the combination of 2 key and 8 key successively, the possible pinyin element combination "bu cu cun cuo cui" is displayed on the top of the input method interface, move to the right to select the pinyin element and select "cu", press Press the OK key to move the focus to the list of candidate characters at the bottom of the input method interface, move the candidate character to the right, and press the OK key to select the input candidate word "prompt" to display.

Step 103: Trigger the handwriting input to complete the input of "Jin". The implementation is as follows:

Step 1031: The finger touch sensing unit 4 detects that the handwriting stylus is pressed on the handwriting area of the touch screen, sends a handwriting state trigger signal to the handwriting process identification unit 6, and sends a trigger signal to the keyboard input unit 2 at the same time, so that the keyboard input unit 2 stops Work;

Step 1032: the handwriting process recognition unit 6 judges whether the moving distance of the stylus in the handwriting input area is greater than the first distance within the timing time of the first timer, and if so, automatically starts the handwriting track receiving and displaying unit 7, and the input method Clear the interface and switch to the handwriting interface, if not, deal with it separately;

Wherein: the movement distance of the stylus is calculated by calculating the change of the position coordinates of the stylus within the timing time of the first timer;

Step 1033: The stylus completes the input of "in" on the handwriting board, the handwriting trajectory receiving and display unit 7 records and displays the input trajectory through the display screen, and when the touch-off sensing unit 5 receives the signal that the stylus leaves the touch screen, it indicates The word input has ended, and the handwriting logic algorithm unit 9 transfers relevant algorithms from the dot matrix recognition algorithm unit 8 according to the input track to carry out character recognition and read, calculate and judge processing of other relevant data, and the handwriting completion processing unit 10 will select and process The completed result of the word "Jin" is output to the display screen, and the display screen performs output and display.

Thus, the input of "promote" is completed, and after the keyboard input "promote", the system directly recognizes the switching of the handwriting input state without artificial setting.

Step 104: If keyboard operation is performed during the handwriting input process, the key operation sensing unit 1 triggers the handwriting track receiving and displaying unit 7 to finish working, automatically exits the handwriting input mode, switches to the keyboard input mode, and can continue to use the keyboard input.

In another embodiment, the functions of the tablet and the display screen can be realized simultaneously by using the touch screen.

Claims (7)

1. A device for automatically realizing handwriting input, comprising: a tablet, a display screen, and a stylus, characterized in that the device also includes: The handwriting process recognition unit is used for judging whether to carry out the handwriting input process according to the relative action state of the stylus and the tablet; The dot matrix recognition algorithm unit is used to store the algorithm for recognizing the word according to the input track information; The handwriting logic algorithm unit is used to call relevant algorithms from the dot matrix recognition algorithm unit for character recognition according to the input trajectory, and to read, calculate and judge other relevant data; The handwriting completion processing unit is used for outputting the words after the recognition processing has been completed. 2. A device for automatically realizing handwriting input according to claim 1, characterized in that the device also includes a handwriting state recognition unit, and the handwriting state recognition unit further includes: The finger touch sensing unit is used to receive the handwriting trigger signal when the stylus touches the tablet; The off-touch sensing unit is used for receiving a signal that the stylus leaves the tablet and completes the handwriting input. 3. A device for automatically realizing handwriting input as claimed in claim 1, wherein the handwriting board and the display screen are touch screens. 4. A device for automatically realizing handwriting input as claimed in claim 1, characterized in that, the handwriting process recognition unit judges whether the stylus performs handwriting input according to the relative action state of the stylus and the handwriting board through the following steps: The above method realizes: setting the first timer and the first setting distance, judging whether the movement distance of the stylus within the timing time of the first timer on the handwriting board is greater than the first setting distance, if yes, it indicates that the stylus is within the first setting distance Perform handwriting input. 5. A device for automatically implementing handwriting input as claimed in claim 4, wherein the moving distance of the stylus is calculated by calculating the position coordinates of the starting point and the ending point of the stylus on the handwriting board. 6. A device for automatically realizing handwriting input as claimed in claim 1, characterized in that the device further comprises: a keyboard operation sensing unit, configured to receive a key operation trigger signal; The keyboard input unit is used to receive the input information of the keyboard under the keyboard input working state; The keyboard input completion processing unit is used to combine the information input by the keyboard to generate Chinese characters, and output the result after confirmation. 7. A device for automatically realizing handwriting input according to claim 6, characterized in that the output signal of the keyboard operation sensing unit triggers the handwriting state recognition unit to stop working, and the output signal of the handwriting state recognition unit triggers the keyboard The input unit stops working.

Images