JPH0581469A - Pen type optical character recognition device - Google Patents

Abstract

PURPOSE:To read characters in both right and left directions by providing a direction sensor part which detects the read direction of the characters and a memory control part which controls screen data on the read characters according to the detected read direction. CONSTITUTION:An optical read sensor part 2 reads the characters. The read characters are stored as black-and-white image data in an image memory part 3. When the optical read sensor part 2 reads the characters, the direction sensor part 1 detects the read direction of the characters at the same time and sends the detected character read direction to the memory control part 4. The memory control part 4 sends a signal to an image memory part 3 according to the read direction detected by the direction sensor part 1. Consequently, the direction sensor part 1 detects the read direction of the characters and the memory control part 4 can controls the image data according to the read direction, so the characters can freely be read in both the right and left directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pen type optical character recognition device.

[0002]

2. Description of the Related Art As a conventional technique, there is a pen-type optical character recognizing device having an electronic English-Japanese dictionary function for reading a character with an optical sensor by tracing on a word and translating the read word.

When reading characters, the reading direction is limited to one direction from left to right.

If the characters are read from the right to the left, the conventional pen-type optical character recognizing device is shown in FIG.
As shown in FIG. 3, the black and white image data stored in the image memory unit 3 is extracted in the order of storage and sent to the character recognition unit 6, so that the read character is reversed and the character recognition unit 6 cannot recognize the character. is there.

[0005]

However, in the above-mentioned pen-type optical character recognition device, when there is a blank in front of a character such as a character at the beginning of a sentence, the beginning of the character to be read is read in the direction from left to right. Since it cannot be seen because it is shaded, it is difficult to align the characters so that they fall within the readable range, and the characters cannot be reliably recognized.

Therefore, the present invention solves such a conventional problem, and an object of the present invention is to provide a pen type optical character recognizing device capable of reading characters from either left or right. It is to be.

[0007]

A pen-type character recognition device according to the present invention comprises a sensor section for detecting the reading direction of characters,
It is characterized by having a memory control unit for controlling the image data of the read character in accordance with the reading direction detected by the sensor unit.

[0008]

According to the above configuration of the present invention, the image data of the read character can be controlled to form character recognizable character data, so that reading from right to left, which is the opposite of the conventional one, is possible. Is. Further, since the direction sensor section can detect the reading direction of the character and the memory control section can control the image data according to the reading direction, the character can be freely read from either the left or right side.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a character recognition circuit of the present invention.

In the figure, 1 is a direction sensor section for detecting a character reading direction, 2 is an optical reading sensor section for reading characters, and 3 is a character read by the optical character reading sensor section 2 as black and white image data. An image memory unit 4 for storing image data, a memory control unit 4 for controlling the image data stored in the image memory unit 3, and a character data 5 for character recognition of the image data sent from the image memory unit 3 according to an instruction from the memory control unit 4. Is a character recognition unit for recognizing a read character formed by the image data sent to the preprocessing unit 5.

The operation of the embodiment thus constructed is as follows.

First, the optical reading sensor unit 2 reads characters. The read characters are stored in the image memory unit 3 as black and white image data. When reading with the optical reading sensor unit 2, at the same time, the direction sensor unit 1
In step 3, the character reading direction is detected, and the detected character reading direction is transmitted to the memory control unit 4.

A signal is sent from the memory control unit to the image memory unit 3 in accordance with the reading direction detected by the direction sensor unit 1.

When the characters are read from the left to the right as in the conventional case, the memory control section 4 sends the image data stored in the image memory section 3 to the pre-processing section 5 in the storage order as shown in FIG. Issue a signal to instruct. The image memory 3 receiving the signal from the memory control unit 4 sends the read image data to the pre-processing unit 5 in the order in which they are stored, and the pre-processing unit 5 forms the character data at the time of reading and the character recognition unit 6 performs the character data reading. To recognize.

When the characters are read from right to left, the memory control unit 4 draws out the image data stored in the image memory unit 3 in the reverse order of the storage, as shown in FIG. 5 sends a signal instructing to send. The image data sent from the image memory unit 3 in the reverse order of storage forms normal character data in the preprocessing unit 5, and the character recognition unit 6 performs character recognition.

[0017]

As described above, according to the configuration of the present invention, the image data read by the memory control unit can be controlled according to the reading direction of the character to form recognizable character data. In addition to the conventional left-to-right direction reading, when reading from the left-to-right direction is difficult, it is possible to read characters from the right-to-left direction, which is effective in improving the recognition rate.

Further, since bidirectional reading is possible, even a left-handed user can easily operate, and the range of use can be expanded.

[Brief description of drawings]

FIG. 1 is a block diagram of a character recognition circuit of the present invention.

FIG. 2 is an explanatory diagram of reading from left to right according to the present invention.

FIG. 3 is an explanatory diagram of reading from right to left according to the present invention.

FIG. 4 is an explanatory diagram of a conventional case where reading is performed from right to left.

[Explanation of symbols]

 1 reading direction sensor section 2 optical reading sensor section 3 image memory section 4 memory control section 5 preprocessing section 6 character recognition section

Claims (1)

[Claims] 1. A pen-type optical character recognition device, comprising: a direction sensor section for detecting a reading direction of a character; and a memory control for controlling image data of the read character according to the reading direction detected by the sensor section. A pen-type optical character recognition device having a portion.