JPS59165184A - Optical character recognizing device - Google Patents

Abstract

PURPOSE:To cope with various tasks by the operation of one switch on a switch PC board and to facilitate the modification of specification, etc. by providing a nonvolatile semiconductor memory in a character recognizing device and connecting the switch PC board to this memory through an I/O port. CONSTITUTION:An optical character reader 1 is constituted as a handy type, the reflected light from a character on a medium is converged through a lens 3, and a signal obtained by forming an image on a CCD4 is quantized by a quantizing circuit 5 into a binary signal. This binary-coded signal is inputted to the list processing and editing circuit 9 of the character recognizing device through a detecting and segmenting circuit 6, sampling circuit 7, and similarity calculating circuit 8. A CPU10 and the nonvolatile semiconductor memory 11 and the I/O port 12 are provided in this character recognizing device 15, and the switch PC board 13 is connected to the port 12. Further, the PC board 13 is provided with plural switches 14, which are operated to write their contents in the memory 11 respectively. Then, the setting and modification of the specification are performed easily by the operation of said switches 14 corresponding to various tasks.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an optical character recognition device that uses a hand reader to optically read characters and symbols printed on a label or the like.

Technical Background of the Invention and Problems Therein Generally, there are a wide variety of specifications for hand readers in optical character recognition devices.

Generally speaking, there are two types: POa type and data entry type, and if it is POS type,
For example, should the character ``1A'' be considered a standard function character or a protection function character?
There is a wide variety of options, such as whether to use a fixed modifier character or a variable modifier character, whether to specify apposition, and whether to output a standard code or a special code. There are □ specifications. There are so many types that if nine ON-OFF switches were to be set, for example, as many as 79 switches would be required.

Therefore, in the past, a P-ROM (erased with ultraviolet rays and written with flat pressure) was provided with a table of about 79 bits, and by writing 11" or %% 0" to that bit, it was used as a switch, and the bit was programmed. I read it and decide on the specifications of the hand reader. Such a method is inexpensive and requires less space. However, in response to requests for various specifications, each P
-FLOM must be managed, and changes can only be made at the location where the P-RAM writer is located (usually at a factory).

On the other hand, in consideration of these shortcomings, some devices have a built-in PC board with about 80 pit switches. According to this, the factory only needs to make the same product all the time, and the sales side can respond to customers' detailed specification requests by operating switches. however,
The drawback is that it is more expensive and takes up more space than the P-40M.

Purpose of the Invention The present invention has been made in consideration of the following points:
The purpose of the present invention is to obtain an optical character recognition device that is advantageous in terms of space, does not require management based on factory specifications, and allows the specifications to be easily changed on the sales side or at the customer's site.

Summary of the Invention The present invention provides a device with a non-volatile semiconductor memory, and when setting or changing specifications, connects a switch PC board having a switch for specifying the specifications, reads the switch contents, and writes them to the non-volatile semiconductor memory. , switch PC
Once the board is removed, the specifications remain in the non-volatile semiconductor memory9, thus making it cheaper and taking up less space.
There is no need for management based on factory specifications, and the configuration is such that specifications can be easily set and changed.

Examples of the invention An embodiment of the present invention will be described based on the drawings.

First, FIG. 1 shows the entire system of an OCR/'nt reader, in which an optical reading section (1) is formed as a day-to-day type. This optical reading section (1) is a lamp (
2) Illuminates the letters on the medium with the heel skin emitted light from the lens (3)
An analog signal is obtained by focusing the light on the C0D (4) and forming an image on the C0D (4). Then, this analog signal is converted into a digital signal by a quantization circuit (5), and a detection extraction circuit (6) determines whether the character is readable or not, and if it is readable, the pit image is moved to a position where it can be easily processed. I'll cut it out. Next, the sampling circuit (7) and the similarity calculation circuit perform character recognition, and the final list processing/editing circuit (9) checks whether the input data meets the specifications or if there are any errors in the printing format of the medium. It checks whether there is any data, and outputs it to the host when one row of data is complete.

The list processing/editing circuit (9) is configured as shown in the second prisoner, and has a CPU (1G) and a non-volatile semiconductor memory aυ.The non-volatile semiconductor memory I may be NOVRAM or PJgp-[IM etc. are used. NOVRAM (Non-Voluntary RAM) has a built-in RAM and RAM, and the written contents can be transferred directly to the ROM.Also, IP-RAM is a ROM that can be erased and written with a normal +5V' power supply.
The contents are retained even if the data is F.

and I10 baud) (switch PC through 121)
A board (131) is detachably provided. A large number of switches (for example, 80 bits) for specifying specifications are arranged on this switch PC board u9.

In such a configuration, when setting factory specifications or changing specifications on the sales side, the switch PC board (13 is connected to the character recognition device (151). At this time, the character recognition device (L, for example, switch (14A) is ON
If so, it is determined that the specification setting switch PC board (I3) is connected, and the contents of each switch I are read and written to the nonvolatile semiconductor memory IJ (11). Thereafter, even if this switch PC board u'5 is removed from the character recognition device αQ, the set/changed specifications remain in the nonvolatile semiconductor memory αυ. Then, switch PC board (19
When the switch (14A) is removed, the switch (14A) becomes OFF, so the character recognition device (1 is a non-volatile semiconductor memory ←υ) performs normal reading operations based on the specifications left in it. 3 is a flowchart showing the operation.

Therefore, according to this embodiment, the factory or sales side only needs to prepare one switch PC board (1'5).
It can easily accommodate various specifications and eliminates the need for management at 2-2 factories. Moreover, it is advantageous in terms of space and is inexpensive.

Effects of the Invention As described above, the present invention includes a switch PC board having a switch for specifying specifications and a nonvolatile semiconductor memory, and connects the switch PC board to a device to read the switch contents and write them to the nonvolatile semiconductor memory. Since the switch PC board has been removed, the switch P can be removed at the factory or on the sales side.
By preparing a single C board, various specifications can be easily met, no management is required at the factory, and it is advantageous in terms of space and can be made at low cost. It is.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a block diagram, FIG. 2 is a block diagram of a list processing/editing circuit, and FIG. 3 is a flowchart. 1. Optical reading section, 9. List processing/editing circuit, 1
1...Nonvolatile semiconductor memory, 13...Switch PC board, 14 Switch

Claims (1)

[Claims] List processing to check whether or not the input data that has been mechanically processed meets the specifications.
In a device equipped with an editing circuit, a switch PC board in which a large number of switches for specifying specifications are arranged and a non-volatile semiconductor memory are provided, and the switch PC board is connected to the device and the contents of the switches are read and stored in the non-volatile semiconductor memory. An optical character recognition device characterized in that specifications can be set or changed by writing and removing the switch PC board.