JPS63153691A - Data transfer for semiconductor data carrier system - Google Patents

Abstract

PURPOSE:To allow the titled system to cope flexibly with various operation mode change with simple structure of the employed device and small size by amplitude-modulating a carrier by using a data information signal and sending the data from an antenna so as to be free from the positioning to a storage medium. CONSTITUTION:A bar code reader arranged at part of an outer wall of a case 10 reads data information subject to bar code processing. A data write section 3 of a scanner to give/receive a data to/from a semiconductor storage medium 13 consists of a coil and amplitude-modulates the carrier being a multiple of a clock frequency by using a data information signal and gives the result to the storage medium 13 thereby sending the power, clock and write data through one coil. A data read section 4 of the scanner receives an electromagnetic wave sent through the antenna from the storage medium 13 to read the data information. Thus, the data write section 3 of the scanner has only to be approached to transfer the data.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a data transfer system for a semiconductor data carrier system that reads and writes data information to a data carrier using a semiconductor storage medium [Technical background of the invention and its [Problem] Recently, semiconductor data has been used as a data storage means, in which data information is stored in a semiconductor storage medium by a scanner device, the data information stored through the storage medium is retrieved by the scanner device, and the data is processed by a computer. Carrier Nostem equipment is attracting attention.

Data is exchanged between the scanner device of the device and the semiconductor storage medium using independent dedicated coils without any modulation of the power, clock, write data, and read data elements. Therefore, in the transfer method, it is necessary to relatively accurately position the coils between the device and the storage medium,
Depending on the data format, it may become impossible to collect data information, and a positioning mechanism is also required for this purpose, making the structure more complex and larger, and the data exchange may depend on the intended use of the storage medium. had the disadvantage of not being able to respond flexibly.

In addition, as a prior art regarding data exchange, the
No. 7-52620 and Japanese Unexamined Patent Publication No. 58-15722, both of which have the same feature that data information can be read without contact, but cannot write data information, and the present application is unable to write data information. This is completely different from data exchange technology.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned drawbacks, and provides a data exchange method in a semiconductor data carrier system that has a simple and compact device structure and can flexibly respond to changes in the usage of storage media used for various purposes. The purpose is to provide C.

[Summary of the invention]

When writing data information from a scanner device of a semiconductor data carrier system device to a semiconductor storage medium, the present invention uses a single coil to control power and clock frequency by amplitude modulating a carrier wave with a clock frequency multiplied by a data information signal. , when simultaneously transferring write data and IJ-reading data information stored in the storage medium by the scanner device, dividing the frequency of the carrier wave within the storage medium to generate a new carrier wave, The above object is achieved by amplitude modulating the carrier wave with the read data information and transmitting the read data over the antenna.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail based on one embodiment. 1st
Figures 1 and 2 show semiconductor data carrier system equipment that employs the data transfer method of the present invention.
The figure shows its external view, and FIG. 2 shows its block diagram.

First, the configuration of the device will be explained. ■ is a barcode reader installed on a part of the outer wall of the housing 10 of the device,
Read bar food data information. Reference numeral 2 denotes a scanner device disposed on a part of the outer wall of the housing 10 of the device, and for sending and receiving data to and from the semiconductor storage medium 13, and a scanner device for writing data information to the storage medium 13. It consists of a write section 3 and a data read section 4 that performs reading. The data write unit 3 is composed of one coil, and by transmitting a carrier wave obtained by multiplying the clock frequency and amplitude modulating the carrier wave by a data information signal from the data write unit 3 to the storage medium 13, It is possible to transmit power, clock, and write data. The data read section 4 reads data information by receiving electromagnetic waves transmitted from the storage medium 13 via an antenna. Therefore, the scanner device 2 can send and receive data to and from the storage medium 13 simply by bringing the data write unit 3 close to the storage medium 13. 5
is a keyboard for inputting data information to be written to the storage medium 13; 6 is a display device for displaying data information input manually from the keyboard 5 or data information read by the data read section 4 and barcode reader 1; 7 is a memory for storing data information read by the barcode reader 1 and the scanner device 2; 8 is a connection terminal for transferring the data information stored in the memory to a host computer (not shown); An I10 connector. 9 is a control unit for controlling these devices and the like. 10 is a housing of the device. Reference numeral 11 denotes a power switch for controlling the power supply of the device. In addition, 1
2 is an article to which a semiconductor storage medium 13 is attached.

Next, the structure of the semiconductor storage medium 13 on which data information is read and written by the device 10 will be explained. FIG. 3 shows an example of a circuit board 2o embedded in the storage medium 3, on which the memo circuit of FIG. 8 is mounted. 2
Reference numeral 1 denotes a coil printed on the substrate 20 for receiving carrier waves transferred from the scanner device 2 of the device. 22
is a semiconductor integrated circuit including an active element and a memory that converts the carrier wave received by the coil 21 into a DC power source and stores data information separated from the carrier wave.

23 is a battery for backing up the memory built into the integrated circuit 22; 24 is the substrate 20 for transferring data information stored in the memory to the scanner device 2;
Antenna printed on. 25 is a resin for sealing the integrated circuit 22. FIG. 4 shows another embodiment of the circuit board, in which a coil 21, an integrated circuit 22, and a battery 23 are provided in order to reduce the thickness of the storage medium in the embodiment. An example is one in which these are stacked one on top of the other in order to make the storage medium smaller and more compact. FIG. 5 shows an embodiment of the structure of the storage medium 13 in which the circuit board 20 is embedded, and 31 is a case frame for positioning and fixing the circuit board 20;
The circuit board 20 is fixed to the case frame, a fixing resin is injected, and then a sheet-like front cover 32 and a sheet-like back cover 33 are attached to the front and back surfaces of the case frame, respectively. It is constructed. FIG. 6 shows another embodiment of the storage medium 13, which has a daily life waterproof structure by providing higher airtightness than the embodiment described above.

In FIG. 6, 34 is a case for housing the circuit board 20, 35 is a spacer for fixing and positioning the circuit board 20 housed in the case 34, and 36 is a lid of the case 34. Yes, after storing the circuit board 20 and the spacer in the case 34, the case 3
The case 34 and the lid 36 are joined by ultrasonic bonding after injecting fixing resin into the case 4 and closing the lid 36.

Next, data exchange between the device 10 and the storage medium 13 will be explained. 7 is a circuit diagram of the scanner device 2, FIG. 8 is a circuit diagram of the circuit board 20 (memo circuit), and FIG.
The figure and FIG. 10 show transmission and reception waveforms of carrier waves during data transmission and reception.

First, writing of data from the scanner device 2 to the storage medium 13 will be explained. 7 (al is the data write section of the device 2, and the amplitude modulation circuit 43 modulates the amplitude of the data information signal 42 in FIG. 9+b+ on the carrier wave in FIG. 9 (al) generated by the carrier wave generation circuit 4I. As a result, a carrier wave having a transmission waveform as shown in FIG. At the same time, the rectified carrier wave is rectified by a data discriminator circuit 48 and a data information signal is demodulated via a data discrimination circuit 48, and a clock signal is output via a frequency dividing circuit 49. The demodulated data information signal is controlled by the system control unit 51 and stored in the memory 5.
It is written to 2. Note that the memory 52 retains stored data by a bank-up battery 53.

Furthermore, FIG. 10 (b) read from the memory 52
The data information of j is obtained by amplitude modulating the carrier wave of FIG.
A carrier wave as shown in Figure (C1) is created and transmitted to the scanner device 2 as an electromagnetic wave via the antenna 55.

The data read section 4 of the scanner device 2 receives the carrier wave through an antenna 56, and transmits the carrier wave to a tuning circuit 57 and a high frequency amplification circuit 5.
8. Demodulate the data information signal 60 by passing through the waveform conversion circuit 59.

The data transfer method will be described in further detail.

First, reading of data information will be explained with reference to the lead 70-chart in FIG. When the coil 44 of the scanner device 2 of the device transmits power using a carrier wave and the power in the memo circuit of the circuit board 20 embedded in the semiconductor storage medium 13 is turned on, a self-code is generated from the self-code generator 50. The image is transferred to the scanner device 2. When the scanner device 2 confirms the self-code,
When a typical read start code shown in FIG. The transmission will take place. The scanner device receives the data information, and after the reception is completed, a CRC check is performed on the data information, and if it is OK, the data information is stored in the memory 7 and displayed on the display device 6.

Next, writing of data information will be explained using the write flowchart shown in FIG. Power is transmitted by a carrier wave to the storage medium 13 from the coil 44 of the scanner device 2 of the device, and data information stored in the memory 52 is read according to the read flowchart. When the reading of the data information is completed,
A thirteenth image is sent from the scanner device 2 to the storage medium 13.
Data with a write start code as shown in FIG. tb+ added to the beginning of the data information is transmitted, and the data information is written into the memory 52. The stored data information is read according to the read flowchart and verified with the write data, and if they do not match, the data information is written again.

Next, regarding the operation method, the semiconductor data carrier system will be explained based on an example of application to a baggage identification system.
The worker uses the barcode reader 1 installed in the system equipment 10 to manually read the barcode on the baggage identified by the barcode. The baggage is identified by checking the data information for identifying the baggage that is read and displayed on the display device 6. Furthermore, for the baggage 12 identified by the semiconductor storage medium 13, the worker manually brings the light section 3 of the scanner part 2 of the device close to the storage medium 13, and The stored baggage identification data information is read and the data information displayed on the display device 6 is confirmed to identify the baggage 12. In addition, when writing new baggage identification data information to the storage medium 13 or rewriting the write data, the write section 3 of the device is manually moved to the storage medium 13 in the same manner as when reading data. The device is brought close to the medium 13, the data information is entered manually using the keyboard 5, and after confirming the data information displayed on the display device 6, the write unit 3 writes the data information or rewrites the write data. The data information stored in the memory 7 is sent to the host computer via the I10 connector 8.
(not shown) and data processing is performed.

〔Effect of the invention〕

As detailed above, according to the present invention, a carrier wave whose clock frequency is multiplied is amplitude-modulated by a data information signal, and power, clock, and write data are simultaneously transferred from a scanner device to a semiconductor storage medium using one coil. With,
A new carrier wave generated inside the storage medium is amplitude-modulated by a data information signal stored in the storage medium, and read data is transferred from the storage medium to the scanner device using an antenna, thereby eliminating the need for positioning with respect to the storage medium. Furthermore, the device has a simple structure, is small and handy, can flexibly respond to various changes in usage, and can provide a data exchange method in a semiconductor data carrier system that can read and write data information without contact. There are effects such as

[Brief explanation of the drawing]

FIG. 1 is an external view of a semiconductor data carrier system device with a barcode reader, which is an embodiment of the present invention, and FIG. 2 is a block diagram of the device. FIG. 3 is a memo of a semiconductor storage medium which is an embodiment of the present invention. FIG. 5 is a block diagram of a semiconductor storage medium in which the memo circuit board is embedded, and FIG. 6 shows another embodiment. Figure 7 shows the circuit diagram of the scanner device (ai is the data write section, f
b) is a data read section. FIG. 8 is a circuit diagram of a memo circuit, FIG. 9 is a waveform diagram of a carrier wave transferred from the scanner device to the memo circuit, and FIG. 10 is a waveform diagram of a carrier wave transferred from the memo circuit to the scanner device. . FIG. 11 is a read flowchart showing the reading of data information in data exchange, FIG. 12 is a write flowchart showing the writing of data information, and FIG. 13 is a diagram showing the structure of the data information. 2... Scanner device 3... Data write section 4.
・・Data read section 7・52・・Memory 13・・・
Semiconductor storage medium 20... Memo circuit board 21, 44,
45...Coil 22...Semiconductor integrated circuit 24.56.
・Antenna 43・55・Amplitude modulation circuit 57・・Tuning circuit

Claims (2)

[Claims] (1) In a semiconductor data carrier system comprising a semiconductor storage medium and a scanner device that reads and writes data information while supplying power to the storage medium, the scanner device has a first clock frequency multiplied by a clock frequency. means for generating a carrier wave; and means for amplitude modulating the carrier wave with the data information signal to form a second carrier wave; the storage medium receives data information from the scanner device in the form of a second carrier wave; Data exchange method in a semiconductor data carrier system characterized by being supplied with and electric power (2) In a semiconductor data carrier system comprising a semiconductor storage medium and a scanner device that reads and writes data information at the same time as supplying power to the storage medium, the scanner device has a first clock frequency multiplied. The storage medium has means for generating a second carrier wave by directly or multiplying or frequency-dividing the alternating current component of the carrier wave, and a signal of data information stored in the storage medium. means for amplitude modulating the carrier wave by a means for amplitude modulating the carrier wave, and when power is supplied from the scanner device to the storage medium in the form of a first carrier wave, the scanner device modulates the amplitude of the carrier wave from the storage medium. A data exchange method in a semiconductor data carrier system characterized by receiving data information at