JPS61103286A - Information recording media - Google Patents

Abstract

PURPOSE:To set an important pattern part such as a trademark to an interruption part by installing an interruption part to the strobing and data signal recording band, and installing the interruption identifying signal of the same bit number before and after the interruption part of the strobing signal recording band. CONSTITUTION:On a beer gift ticket 20, the trademark 23 of a beer manufacturing company is largely printed. On the beer gift ticket 20, a strobing signal recording band 21 and a data signal recording band 22 are installed along the center line in the longitudinal direction. These recording bands 21 and 22 are not preferable in design when they pass across the pattern of the trademark 23, and therefore, they are interrupted at this part. Before and after the interruption part of the strobing signal recording band 21, interruption identifying signals 21AS and 21BE are mutually installed at the same bit number. When such a piece of information is read, in the interruption part of the signal recording body, the interruption identifying signal of the bit number less than one word is detected after the division of one word, and after that, the signal will not be detected, and for this reason, it is judged that the signal recording body exists subsequently. The correct reading is executed up to the end of information.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an information recording medium, and is particularly suitable for recording information that can be easily read by a machine in the gift world or on valuable certificates such as gift certificates. It is something.

[Conventional technology]

This type of information recording medium is used to allow gift certificates, gift certificates, etc. to be used in vending machines, but in order to make the information easily readable by a reader, a third It is known that information is recorded using a strobe signal 11 and a data signal 12 in the signal format shown in the figure. That is, as the strobe signal n, breaks (shaded areas) are printed at equal intervals, and as the data signal 12, it is determined whether or not similar lines are printed in the areas corresponding to the gaps of the strobe signal 11. Depending on the situation, whether each bit of information is ``1'' or ``0'' is recorded.

[Problem that the invention seeks to solve]

By the way, due to the nature of gift certificates, etc., it is necessary to give priority to designs such as trademarks and print them large.
There may be restrictions on where the above information can be recorded (printed). Therefore, the problem is how to record more information under such constraints and how to ensure that the recorded information can be read.

[Means for solving problems]

In order to solve the above-mentioned problems, in the present invention, an interrupted part is provided in the strobe signal recording band and the data signal recording band for recording information, and the strobe signal recording band on both sides of this interrupted part is made up of one word. Interruption identification signals with a small number of bits are provided, and the number of bits of these interruption identification signals is the same. Therefore, by printing important designs such as trademarks with priority and using this part as an interrupted part and providing signal recording bands on both sides, more information can be recorded even if there are restrictions on the design. Reading can be performed reliably by recognizing the interrupted portion using the interruption identification signal.

[Effect]

In order to read the information recorded on the information recording medium according to the present invention, the medium is conveyed in the direction of the recording bands of strobe signals and data signals, and two sensors provided at positions corresponding to each recording band are used to read the information. The recorded information is determined based on the presence or absence of a data signal synchronized with the strobe signal j, %, and the strobe signal. Then, the division of one word is determined based on the number of bits of the detected strobe signal, and if there is an interrupted part, one
One of the interruption identification signals with the number of bits less than one word is detected, so the number of bits of this signal is counted and memorized, and when the interruption part passes, the other interruption identification signal is detected, so the next interruption identification signal is detected. It is determined that the next word begins after a signal with the same number of bits as the interruption identification signal counted and stored in is detected.

〔Example〕

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

FIG. 2 is a front view of an embodiment in which the present invention is applied to a beer gift certificate. In the figure, the beer gift garland chrysanthemum has the beer company's trademark section printed in large size, as well as appropriate characters and designs. The beer gift certificate 2o has strobe signal recording bands 21 (zlh) parallel to each other on both sides of the beer gift certificate 2o along its longitudinal center line.

21B) and data signal recording band 22 (22A,
22B) i is provided. Since it would be undesirable in terms of design if these signal recording bands 21 and 22 cross the quotient and symbol, they are interrupted at this part and divided into signal recording bands 21A and 21B and 22A and 22B, respectively.

FIG. 1 is a diagram showing the details of the main parts of the signals recorded in each of the signal recording bands 21 and 22 in FIG. Multiple words of information are recorded by printing lines with magnetic ink. Here, the recorded information includes, for example, product name and amount.

The number, manufacturer, checksum, etc. Before and after the interrupted portion of the strobe signal recording band 21, interruption identification signals 21AS and 21B are provided to identify the interrupted portion.
K have the same number of bits (2 bits in the figure) and are provided next to the boundaries between the previous and next words.

The interruption identification signals 21AS and 21B11i
The number of bits is set to be less than one word.

Next, the operation when reading information recorded on such an information recording medium (beer gift certificate 20) will be explained. As the medium conveyance mechanism of the reading device, a mechanism similar to that of a well-known banknote validator can be used, and the beer gift certificate 20 is conveyed in the longitudinal direction when reading is performed. Then, a strobe signal recording band 21 and a data signal recording band 2
A magnetic sensor is provided at each position corresponding to 2,
The signals recorded in each signal recording band 21 and 22 are sequentially detected, and recorded information is determined based on the presence or absence of a data signal synchronized with a strobe signal. At this time, the number of bits of the strobe signal detected from the strobe signal recording band 21 is counted to determine the break between each word.

Then, in the interrupted part of the signal recording band, after one word is separated and one of the interruption identification signals with a bit number smaller than one word is detected, no signal is detected (whether the signal is detected or not depends on whether the signal is detected or not). The interrupted part and the part where the signal is recorded are distinguished by the difference in the fan of the space between the lines indicating the bit signal), so it is determined that there is still a signal recording band after the bit signal.

Then, when the signal is detected again after passing the interrupted part (it goes without saying that if this interrupted part is longer than a predetermined value, it is judged as abnormal or fake), when the above-mentioned interrupted part starts, After counting the same number of bits as the number of bits of the interruption identification signal counted after one word is separated, it is determined that the next word begins, and reading processing is performed. Then, after reading all the words (if no extra bit signal is detected after word separation, it can be determined that the end is there), check whether the data format of the read information is correct using a checksum etc. If the information can be read correctly, the medium is determined to be genuine; if the information cannot be read correctly, the medium is determined to be fake.

In the above embodiment, one bit of signal is represented by one line, but one bit may be represented by a plurality of lines. This is effective in preventing counterfeiting.

〔Effect of the invention〕

According to the present invention as described above, an interrupted portion is provided in the strobe signal recording band and the data signal recording band. to 11
At the same time, interrupt identification signals with the same number of bits, less than one word, are provided in the strobe signal recording band before and after the interrupted portion, thereby interrupting the portion where important designs such as trademarks are printed. By making it into parts, more information can be recorded, and even if there is an interrupted part, it can be reliably identified as the interrupted part, and the information can be read reliably.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the main parts of an embodiment of the present invention, FIG. 2 is a front view of an embodiment in which the present invention is applied to a beer gift certificate, and FIG.
The figure shows a conventional signal recording format. 21... Strobe signal recording band, 22... Data signal recording band, 21AE! , 21BK... Interruption identification signal. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1) In an information recording medium having a strobe signal recording band and a data signal recording band, in which a plurality of words are sequentially recorded in these signal recording bands, an interrupted portion is provided in the signal recording band, and the interrupted portion is An information recording medium characterized in that an interruption identification signal having a bit number less than one word is provided in a strobe signal recording band on both sides of the information recording medium, and the number of bits of these interruption identification signals is the same.