JP2013004053A - Card reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card reader capable of preventing skimming and reducing cost even when the reader has plural magnetic heads mounted therein.SOLUTION: A magnetic head 4 and a magnetic head 5 mounted in a card reader are connected to each other with a flexible cable 6. The magnetic head 4 is an encryption head for outputting an encrypted signal, and the magnetic head 5 is a non-encryption head for outputting a non-encrypted signal. The flexible cable 6 is formed in a multilayer structure including a data signal layer for transmitting the non-encrypted signal from the magnetic head 5 and disconnection detection signal layers for covering the front and rear surfaces of the data signal layer. One end of the flexible cable 6 is formed with a terminal covering portion 6b fixed so as to cover signal terminals 20 of the magnetic head 5. The other end of the flexible cable 6 is connected to a substrate 13. The magnetic head 4 encrypts the non-encrypted signal from the magnetic head 5.

Description

  The present invention relates to a card reader including a plurality of magnetic heads for reading magnetic data recorded on a card.

  Conventionally, card readers that read magnetic data recorded on cards have been widely used. In this type of card reader, for example, magnetic data recorded on the card is read by a magnetic head disposed in a card passage through which the card passes. Also, in the industry where card readers are used, so-called skimming, in which a criminal attaches a signal line to a magnetic head or the like to illegally acquire magnetic information recorded on a card, has been a big problem.

  Therefore, conventionally, a magnetic head capable of preventing this skimming has been proposed by the present inventor (see, for example, Patent Document 1). In the magnetic head described in Patent Document 1, the terminal of the magnetic head and one end of the flexible cable are connected inside the head case of the magnetic head. The other end of the flexible cable is connected to one surface of the substrate inside the head case. A demodulating IC that demodulates the output signal from the terminal of the magnetic head is mounted on one surface of the substrate, and a CPU that encrypts the demodulated signal from the demodulating IC is mounted on the other surface of the substrate. The substrate is fixed to the head case so that the demodulation IC is arranged inside the case body and the CPU is arranged outside the case body. The CPU is a BGA (Ball Grid Array) type electronic component, and the CPU electrode is disposed on the mounting surface of the CPU on the substrate.

  Since the magnetic head described in Patent Document 1 is configured as described above, it prevents the skimming signal lines from being attached to the terminals of the magnetic head, the flexible cable, the electrodes of the demodulation IC, the electrodes of the CPU, and the like. It becomes possible. Therefore, in the magnetic head described in Patent Document 1, it is possible to prevent a signal before encryption from being taken out by a signal line for skimming, and as a result, skimming can be prevented.

JP 2011-40140 A

  Some card readers are equipped with a plurality of magnetic heads. Here, even if the card reader is equipped with a plurality of magnetic heads, skimming can be prevented if all the magnetic heads mounted are the magnetic heads described in Patent Document 1. However, since the magnetic head described in Patent Document 1 has expensive components such as a CPU, if all the magnetic heads mounted on the card reader are used as the magnetic head described in Patent Document 1, Cost increases.

  Accordingly, an object of the present invention is to provide a card reader capable of reducing cost while preventing skimming even when a plurality of magnetic heads are mounted.

  In order to solve the above problems, a card reader of the present invention includes a first magnetic head and a second magnetic head for reading magnetic data recorded on a card, a first magnetic head, and a second magnetic head. The first magnetic head is connected to the first core, the first coil wound around the first core, and the end of the first coil. The first signal terminal, the analog output signal output from the first signal terminal to demodulate the demodulated electronic component to generate a digital demodulated signal, and the demodulated signal to encrypt the encrypted signal A board on which the encryption electronic component to be generated is mounted; a cable for electrically connecting the demodulation electronic component and the first signal terminal; a first core, a first coil, a first signal terminal; The cable is housed and the board A second magnetic head including a second core, a second coil wound around the second core, and a second coil to which an end of the second coil is connected. The flexible cable includes a data signal layer on which a data signal pattern for transmitting a data signal output from the second magnetic head is formed, and a front surface and a back surface of the data signal layer. And forming a disconnection detection signal layer on which a disconnection detection signal pattern for transmitting a disconnection detection signal for detecting disconnection of itself is formed, and a second signal is provided at one end of the flexible cable. A terminal cover that is fixed so as to cover the terminal is formed, the other end of the flexible cable is connected to the substrate, and the data signal is encrypted by the first magnetic head.

  In the card reader of the present invention, the first signal terminal for outputting an analog output signal, the demodulating electronic component, and the first signal terminal are electrically connected inside the case body of the first magnetic head. And a cable to be housed. Therefore, according to the present invention, it is possible to prevent the signal line for skimming from being attached to the first signal terminal or the cable. In the present invention, since the first magnetic head includes a substrate on which the demodulation electronic component and the encryption electronic component are mounted, for example, the demodulation electronic component and the encryption electronic component are provided in the case body. By fixing the substrate to the case body so as to be disposed inside, or by arranging the demodulation electronic component and the encryption electronic component in the same manner as the magnetic head described in Patent Document 1, the demodulation electronic component Thus, it is possible to prevent the signal line for skimming from being attached to the electrode and the electrode of the electronic component for encryption. Therefore, it is possible to prevent the output signal and demodulated signal before encryption from being taken out from the first magnetic head by the signal line for skimming.

  In the present invention, the terminal cover formed on one end of the flexible cable is fixed so as to cover the second signal terminal of the second magnetic head. Therefore, it is possible to prevent the signal line for skimming from being attached to the second signal terminal by the terminal cover. In the present invention, the front surface (front surface) and the back surface of the data signal layer of the flexible cable on which the data signal pattern is formed are covered with the disconnection detection signal layer on which the disconnection detection signal pattern is formed. Therefore, when a criminal tries to attach a skimming signal line to the data signal pattern, it is possible to detect that a criminal act is being performed using the disconnection detection signal pattern. Therefore, it is possible to prevent the signal line for skimming from being attached to the data signal pattern of the flexible cable. As a result, in the present invention, the data signal before encryption is taken out from the second magnetic head and the flexible cable by the skimming signal line even if the second magnetic head is not provided with the electronic component for encryption. Can be prevented. Furthermore, in the present invention, the other end of the flexible cable is connected to the substrate, and the data signal from the second magnetic head is encrypted by the first magnetic head. For this reason, it is possible to prevent the data signal before encryption from being taken out by the skimming signal line between the host device on which the card reader is mounted and the first magnetic head.

  In the present invention, since the data signal from the second magnetic head is encrypted by the first magnetic head, the encrypted magnetic data from the first magnetic head and the second magnetic head The encrypted magnetic data from the first magnetic head and the encrypted magnetic data from the second magnetic head, even if the card reader does not have an integrated circuit for integrating the encrypted magnetic data of Data can be transmitted to the upper circuit through a common interface.

  Thus, according to the present invention, it is possible to prevent the output signal and demodulated signal before encryption from being taken out from the first magnetic head by the signal line for skimming. Further, it is possible to prevent a data signal before encryption from being taken out from the second magnetic head and the flexible cable by the skimming signal line even if the second magnetic head is not provided with the electronic component for encryption. In addition, it is possible to prevent the data signal before encryption from being taken out by the signal line for skimming between the host device and the first magnetic head. Further, in the present invention, even if the card reader does not include an integrated circuit that integrates the encrypted magnetic data from the first magnetic head and the encrypted magnetic data from the second magnetic head, It is possible to transmit the encrypted magnetic data from the first magnetic head and the encrypted magnetic data from the second magnetic head to the upper circuit through a common interface. Therefore, in the present invention, it is possible to reduce the cost of the card reader while preventing skimming even when a plurality of magnetic heads are mounted.

  In the present invention, the other end of the flexible cable is preferably connected to the substrate inside the case body and covered with the substrate. If comprised in this way, it will become possible to prevent that the signal wire | line for skimming is attached to the connection part of the other end side of a flexible cable, and a board | substrate. Therefore, it is possible to more reliably prevent the unencrypted data signal output from the second magnetic head from being taken out by the skimming signal line.

  In the present invention, a terminal connection part in which a through hole through which the second signal terminal is inserted is formed on one end side of the flexible cable, and the terminal cover part is folded back so as to cover the terminal connection part. The data signal is fixed to the connection portion, and the data signal is an analog second output signal output from the second signal terminal. The demodulation electronic component demodulates the second output signal to generate a digital second signal. Preferably, the encryption electronic component encrypts the second demodulated signal to generate the second encrypted signal. With this configuration, even if a standard magnetic head with the second signal terminal exposed to the outside (that is, a general-purpose magnetic head) is used as the second magnetic head, the second signal terminal It is possible to prevent the hemming signal line from being attached. With this configuration, the output signal of the first magnetic head and the second output signal of the second magnetic head are demodulated and encrypted using the common demodulation electronic component and encryption electronic component. It becomes possible. Therefore, it is possible to simplify the configuration of the card reader and further reduce the cost of the card reader.

  In the present invention, the second magnetic head demodulates the analog second output signal output from the second signal terminal to generate a second digital demodulated signal. And a second case body in which the second core, the second coil, and the second signal terminal are accommodated and the flexible cable is fixed, and the second demodulation electronic component is disposed on the terminal cover. And the terminal cover is fixed to the second case body such that the second demodulation electronic component is disposed inside the second case body, and the data signal is the second demodulated signal, The encryption electronic component may encrypt the second demodulated signal to generate a second encrypted signal. In this case, since the second demodulated signal is transmitted by the flexible cable, it is possible to improve noise resistance compared to the case where the output signal from the second signal terminal is transmitted by the flexible cable. Become.

  In the present invention, the card reader preferably includes one first magnetic head. With this configuration, it is possible to transmit the encrypted magnetic data from the first magnetic head and the encrypted magnetic data from the second magnetic head to the upper circuit through a single interface. Become. Therefore, the configuration of the card reader can be further simplified.

  In the present invention, the flexible cable is preferably formed in a long and narrow shape in one direction, and the terminal cover portion is preferably formed so as to be connected to the terminal connection portion in the longitudinal direction of the flexible cable. If comprised in this way, it will become possible to simplify the structure of a flexible cable compared with the case where the terminal cover part is formed so that it may connect with a terminal connection part in the width direction of a flexible cable.

  In this invention, it is preferable that a flexible cable is provided so that it may connect with a terminal connection part in the width direction of a flexible cable, and it may be return | folded so that a terminal cover part may be covered and it may be fixed to a terminal cover part. If comprised in this way, it will become possible to cover the end surface of the terminal connection part in the width direction of a flexible cable, and the end surface of a terminal cover part with an outer side cover part. Therefore, it is possible to prevent the signal line for skimming from being attached to the second signal terminal or the like from between the end face of the terminal connection part and the end face of the terminal cover part in the width direction of the flexible cable by the outer cover part. become.

  In the present invention, the flexible cable includes a second outer cover portion that covers the outer cover portion, and the outer cover portion is formed so as to be connected to one end of the terminal connection portion in the width direction of the flexible cable. The part is preferably formed so as to be connected to the other end of the terminal connection part in the width direction of the flexible cable, and is folded back so as to cover the outer cover part and is fixed to the outer cover part. If comprised in this way, it will become possible to cover the end surface of a terminal connection part, and the end surface of a terminal cover part with an outer side cover part and a 2nd outer side cover part in the both sides of the width direction of a flexible cable. Therefore, on both sides of the flexible cable in the width direction, the signal line for skimming is attached to the second signal terminal or the like from between the end face of the terminal connection part and the end face of the terminal cover part. This can be prevented by the outer cover.

  In the present invention, it is preferable that a short circuit detection signal pattern for transmitting a short circuit detection signal for detecting a short circuit with the disconnection detection signal pattern is formed in the disconnection detection signal layer. With this configuration, when a criminal performs a specific work on the disconnection detection signal pattern so that the disconnection detection signal does not function, the criminal act is performed by the short circuit detection function of the short detection signal pattern. Can be detected.

  As described above, in the card reader of the present invention, even when a plurality of magnetic heads are mounted, it is possible to reduce costs while preventing skimming.

It is a perspective view of the card reader concerning an embodiment of the invention. It is the schematic for demonstrating the structure of a card reader from the EE direction of FIG. FIG. 3 is a block diagram for explaining an electrical connection relationship between the magnetic head shown in FIG. 2 and an upper circuit. It is a schematic side view for demonstrating the structure of the magnetic head shown in FIG. FIG. 5 is a plan view for explaining an arrangement relationship between a demodulation IC and a CPU from the FF direction in FIG. 4. It is an expanded view of the flexible cable shown in FIG. It is a perspective view which shows the attachment procedure of the flexible cable to the magnetic head shown in FIG. It is sectional drawing of the GG cross section of FIG. It is a block diagram which shows the connection relation of the signal pattern in the flexible cable shown in FIG. It is a block diagram for demonstrating the electrical connection relation of the magnetic head concerning other embodiment of this invention, and a high-order circuit. It is a schematic side view for demonstrating the structure of the 2nd magnetic head concerning other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Schematic configuration of card reader)
FIG. 1 is a perspective view of a card reader 1 according to an embodiment of the present invention. FIG. 2 is a schematic view for explaining the configuration of the card reader 1 from the EE direction of FIG. FIG. 3 is a block diagram for explaining an electrical connection relationship between the magnetic head 4, the magnetic head 5, and the upper circuit 8 shown in FIG. 2.

  The card reader 1 of this embodiment is a device for reading magnetic data recorded on the card 2. Specifically, a so-called swipe for reading the magnetic data of the card 2 while manually moving the card 2 along the card passage 3 formed in a groove shape shallower than the short width of the card 2 formed in a rectangular shape. Card reader. The card reader 1 is mounted and used in a predetermined host device.

  The card reader 1 electrically connects a magnetic head (first magnetic head) 4 and a magnetic head (second magnetic head) 5 for reading magnetic data recorded on the card 2, and the magnetic head 4 and the magnetic head 5. And a flexible cable 6 for connecting the card reader 1 and a magnetic head 4 and a cable 7 such as a flexible cable for electrically connecting the magnetic head 4 to each other. The card reader 1 of this embodiment includes one magnetic head 4 and one magnetic head 5.

  The card 2 is, for example, a rectangular vinyl chloride card having a thickness of about 0.7 to 0.8 mm. On the back surface 2a of the card 2, as shown in FIG. 1, a magnetic stripe 2b on which magnetic data is recorded is formed. Further, a magnetic stripe (not shown) is also formed on the surface (front surface) of the card 2. The card 2 may be a contact IC card with a magnetic stripe having a contact terminal formed on the front surface (front surface), or a non-contact with a magnetic stripe with a built-in antenna for data communication. An IC card may be used. The card 2 may be a PET (polyethylene terephthalate) card having a thickness of about 0.18 to 0.36 mm, or a paper card having a predetermined thickness.

  The magnetic head 4 and the magnetic head 5 are arranged so that the magnetic gap faces the card passage 3. Further, the magnetic head 4 and the magnetic head 5 are arranged so that their magnetic gaps face each other. In this embodiment, the magnetic head 4 is disposed so as to contact the magnetic stripe 2 b on the back surface 2 a of the card 2, and the magnetic head 5 is disposed so as to contact the magnetic stripe on the front surface (front surface) of the card 2. Yes. One end of the flexible cable 6 is connected to the magnetic head 5, and the other end of the flexible cable 6 is connected to the magnetic head 4. One end side of the cable 7 is connected to the magnetic head 4, and the other end side of the cable 7 is connected to an upper circuit 8 provided in the upper device on which the card reader 1 is mounted.

(Configuration of magnetic head and flexible cable)
FIG. 4 is a schematic side view for explaining the configuration of the magnetic heads 4 and 5 shown in FIG. FIG. 5 is a plan view for explaining the positional relationship between the demodulation IC 11 and the CPU 12 from the FF direction of FIG. FIG. 6 is a development view of the flexible cable 6 shown in FIG. FIG. 7 is a perspective view showing a procedure for attaching the flexible cable 6 to the magnetic head 5 shown in FIG. 8 is a cross-sectional view taken along the line GG in FIG. FIG. 9 is a block diagram showing a connection relationship of signal patterns in the flexible cable 6 shown in FIG. In the following description, the Z1 direction side in FIG. 4 is the “upper” side, and the Z2 direction side in FIG. 4 is the “lower” side.

  The magnetic head 4 is a three-channel magnetic head capable of reading three tracks of magnetic data recorded on the magnetic stripe 2 b of the card 2. The magnetic head 4 includes a magnetic data reader 9 (a first coil) formed with a core (first core) in which a magnetic gap for reading magnetic data is formed and a coil (first coil) wound around the core. 3) and a signal terminal (first signal terminal) 10 (see FIG. 4) connected to one end of the coil. The magnetic head 4 includes a substrate 13 on which the demodulation IC 11 and the CPU 12 are mounted, and a flexible cable 14 as a cable that electrically connects the signal terminal 10 and the demodulation IC 11. The core, the coil, the signal terminal 10 and the flexible cable 14 are accommodated in the case body 15 of the magnetic head 4. The core is fixed to the lower end side of the case body 15.

  The demodulation IC 11 has a function of demodulating an analog output signal output from the signal terminal 10 to generate a digital demodulated signal. That is, the demodulation IC 11 of this embodiment is a demodulation electronic component that demodulates an analog output signal output from the signal terminal 10 to generate a digital demodulation signal. The demodulation IC 11 is formed in a flat rectangular parallelepiped shape.

  The CPU 12 functions to encrypt the demodulated signal with a predetermined encryption function and key data to generate an encrypted signal. That is, the CPU 12 of this embodiment is an electronic component for encryption that encrypts the demodulated signal and generates an encrypted signal. The CPU 12 is formed in a flat rectangular parallelepiped shape. In this embodiment, the external shape of the CPU 12 when viewed from the flat direction (vertical direction) of the CPU 12 is larger than the external shape of the demodulation IC 11 when viewed from the flat direction.

  A plurality of electrodes (not shown) for electrically connecting the CPU 12 to the substrate 13 are disposed on the mounting surface 12 a of the CPU 12 on the substrate 13. Specifically, solder balls (solder bumps) formed in a substantially hemispherical shape are arranged on the mounting surface 12a of the CPU 12 in a lattice pattern. That is, the CPU 12 of this embodiment is a BGA type electronic component in which a plurality of solder balls are arranged on the mounting surface 12 a on the substrate 13.

  The demodulation IC 11 is mounted on one surface (lower surface) 13 a of the substrate 13. On the other hand, the CPU 12 is mounted on the other surface (upper surface) 13 b of the substrate 13. In this embodiment, as shown in FIG. 5, the demodulation IC 11 and the CPU 12 are mounted on the substrate 13 so that the demodulation IC 11 enters the outer shape of the CPU 12 when viewed from the thickness direction (vertical direction) of the substrate 13. ing. That is, the demodulation IC 11 and the CPU 12 are mounted on the substrate 13 so that the entire demodulation IC 11 overlaps the CPU 12 in the vertical direction.

  The substrate 13 is formed in a multilayer structure in which insulating layers and conductor layers (not shown) are alternately stacked. In the present embodiment, the signal pattern 16 (see FIG. 3) for electrically connecting the demodulation IC 11 and the CPU 12 on the substrate 13 enters the outer shape of the CPU 12 when viewed from the thickness direction of the substrate 13. Have been routed. That is, in this embodiment, the signal pattern 16 is formed below the CPU 12.

  The substrate 13 is fixed to the upper end of the case body 15 so as to close the upper end of the case body 15. Specifically, the substrate 13 is fixed to the case body 15 so that the demodulation IC 11 is disposed inside the case body 15 and the CPU 12 is disposed outside the case body 15. One end of the cable 7 is connected to the substrate 13. One end of the cable 7 is connected to the CPU 12 via a signal pattern in the substrate 13, and an encrypted signal from the CPU 12 is input to the upper circuit 8 via the cable 7.

  One end side of the flexible cable 14 is connected to the other end side of the signal terminal 10. The other end of the flexible cable 14 is soldered and fixed to one surface 13 a of the substrate 13, and is connected to the demodulation IC 11 through a signal pattern in the substrate 13.

  The inside of the case body 15 is filled with resin, and the signal terminal 10, the demodulation IC 11, and the flexible cable 14 are buried in this resin. The resin is, for example, an opaque epoxy resin, and also functions to fix the substrate 13 to the case body 15. The other surface 13b of the substrate 13 and the entire CPU 12 are covered with a resin (not shown) such as an opaque epoxy resin. That is, the other surface 13b of the substrate 13 and the entire CPU 12 are sealed with resin.

  The magnetic head 5 is a one-channel type magnetic head capable of reading one track of magnetic data recorded on the magnetic stripe on the surface (front surface) of the card 2. The magnetic head 5 has a core (second core) in which a magnetic gap for reading magnetic data is formed, a coil (second coil) wound around the core, and an end of the coil at one end. And a signal terminal (second signal terminal) 20 connected to the side. The core and the coil are housed inside the case body (second case body) 21. Further, one end side of the core, the coil, and the signal terminal 20 is covered with a resin filled in the case body 21. As described above, the magnetic head 5 is a one-channel type magnetic head, and includes two signal terminals 20. The other end side of the signal terminal 20 protrudes from the case body 21 and is exposed to the outside of the magnetic head 5.

  The flexible cable 6 is formed in a long and narrow shape in one direction. As shown in FIGS. 6 and 7, the flexible cable 6 is folded back so as to cover the terminal connection portion 6a and the terminal connection portion 6a in which the through hole 22 into which the signal terminal 20 is inserted is formed. A folded portion 6b as a terminal cover portion fixed to 6a, a first folded portion 6c as an outer cover portion folded back to cover the folded portion 6b and fixed to the folded portion 6b, and a first folded portion 6c. A second folding portion 6d as a second outer covering portion that is folded back so as to be covered and fixed to the first folding portion 6c. The terminal connection portion 6a and the folded portion 6b are formed on one end side in the longitudinal direction of the flexible cable 6, and the connection terminal portion 23 connected to the substrate 13 is formed on the other end side in the longitudinal direction of the flexible cable 6. Yes.

  Two through holes 22 are formed in the terminal connection portion 6 a so as to correspond to the two signal terminals 20 of the magnetic head 5. The folded portion 6 b is formed so as to be connected to the terminal connection portion 6 a in the longitudinal direction of the flexible cable 6. In the width direction of the flexible cable 6 orthogonal to the longitudinal direction of the flexible cable 6, the width of the folded portion 6b is equal to the width of the terminal connection portion 6a. Further, the area of the folded portion 6b is equal to the area of the terminal connection portion 6a.

  The 1st folding part 6c and the 2nd folding part 6d are formed so that it may connect with the terminal connection part 6a in the width direction of the flexible cable 6. FIG. Specifically, the first folding portion 6c is formed so as to be connected to one end of the terminal connection portion 6a in the width direction of the flexible cable 6, and the first folding portion 6c is connected to the other end of the terminal connection portion 6a in the width direction of the flexible cable 6. Two folding parts 6d are formed. That is, the flexible cable 6 is formed in a substantially T shape. A land 24 is formed in the first folding part 6c, and a land 25 is formed in the second folding part 6d.

  In the longitudinal direction of the flexible cable 6, the widths of the first folding part 6c and the second folding part 6d are equal to the width of the terminal connection part 6a. Moreover, the area of the 1st folding part 6c is equal to the area of the terminal connection part 6a. On the other hand, the area of the second folding part 6d is smaller than the area of the terminal connection part 6a. For example, the area of the second folding part 6d is about 1/6 of the area of the terminal connection part 6a.

  As shown in FIG. 7A, the terminal connecting portion 6a is fixed to the terminal surface of the magnetic head 5 from which the signal terminal 20 protrudes. Specifically, the terminal connection portion 6 a is fixed to the terminal surface of the magnetic head 5 by bonding in a state where the signal terminal 20 is inserted into the through hole 22. The through hole 22 and the signal terminal 20 are soldered. As shown in FIG. 7B, the folded portion 6b is folded back so as to cover the end portions of the terminal connecting portion 6a and the signal terminal 20 from above, and is fixed to the terminal connecting portion 6a. The folded portion 6b is fixed to the terminal connection portion 6a by adhesion.

  As shown in FIG. 7C, the first folded portion 6c is folded back so as to cover the folded portion 6b from the upper side, and is fixed to the folded portion 6b. Moreover, the 1st folding part 6c is being fixed to the folding | returning part 6b by adhesion | attachment. As shown in FIG. 7D, the second folding part 6d is folded back so as to cover a part of the first folding part 6c from the upper side, and is fixed to the first folding part 6c. When the second folding part 6d is folded, the land 25 of the second folding part 6d overlaps the land 24 of the first folding part 6c. In this embodiment, the land 25 is soldered to the land 24 so that the second folding part 6d is fixed to the first folding part 6c.

  As shown in FIG. 8, the flexible cable 6 is formed in a multilayer structure including a data signal layer 27, a disconnection detection signal layer 28, and an insulating layer 29. In the flexible cable 6, the insulating layer 29, the disconnection detection signal layer 28, the insulating layer 29, the data signal layer 27, the insulating layer 29, and the disconnection detection signal layer 28 from the front surface (front surface) to the back surface of the flexible cable 6. And the insulating layer 29 is laminated | stacked in this order. That is, the front surface (front surface) and the back surface of the data signal layer 27 are covered with the disconnection detection signal layer 28 via the insulating layer 29.

  In the data signal layer 27, a data signal pattern 31 (see FIG. 9) for transmitting a data signal output from the magnetic head 5 is formed. In this embodiment, two data signal patterns 31 are formed in the data signal layer 27 so as to correspond to the two signal terminals 20. One end of the data signal pattern 31 is electrically connected to the through hole 22. As shown in FIG. 9, the other end of the data signal pattern 31 is electrically connected to a magnetic head signal terminal 32 formed in the connection terminal portion 23. That is, the data signal pattern 31 electrically connects the signal terminal 20 and the magnetic head signal terminal 32. In this embodiment, the data signal pattern 31 is not formed in the data signal layer 27 of the first folding part 6c and the second folding part 6d.

  In the disconnection detection signal layer 28, disconnection detection signal patterns 33 and 34 (see FIG. 9) are formed. The disconnection detection signal patterns 33 and 34 transmit a disconnection detection signal for detecting that the disconnection detection signal patterns 33 and 34 themselves are disconnected in order to prevent attachment of the signal line for skimming to the data signal pattern 31. Yes. In this embodiment, the disconnection detection signal pattern 33 on the input side of the disconnection detection signal and the disconnection detection signal pattern 34 on the output side of the disconnection detection signal are formed in the disconnection detection signal layer 28. Note that the disconnection detection signal patterns 33 and 34 are formed by being folded back multiple times in the width direction of the flexible cable 6 and formed in a substantially net shape as a whole.

  As shown in FIG. 9, one end of the disconnection detection signal pattern 33 is electrically connected to the land 25 of the second folding portion 6 d, and the other end of the disconnection detection signal pattern 33 is formed on the connection terminal portion 23. The disconnection detection terminal 35 is electrically connected. One end of the disconnection detection signal pattern 34 is electrically connected to the land 24 of the first folding portion 6c, and the other end of the disconnection detection signal pattern 34 is electrically connected to the disconnection detection terminal 36 formed in the connection terminal portion 23. It is connected to. Note that one end of the disconnection detection signal pattern 33 may be connected to the land 24, and one end of the disconnection detection signal pattern 34 may be connected to the land 25.

  Since the land 24 and the land 25 are soldered as described above, the disconnection detection terminal 35 and the disconnection detection terminal 36 are electrically connected via the disconnection detection signal patterns 33 and 34 and the lands 24 and 25. Has been. In this embodiment, if the disconnection detection signal input from the upper circuit 8 via the substrate 13 and the disconnection detection terminal 35 does not return to the upper circuit 8 via the disconnection detection terminal 36 and the substrate 13, the disconnection detection signal patterns 33 and 34. Is detected to be disconnected. Thus, in this embodiment, the lands 24 and 25 connect the disconnection detection signal pattern 33 and the disconnection detection signal pattern 34 so that the disconnection detection signal patterns 33 and 34 function.

  Further, a short circuit detection signal pattern 37 (see FIG. 9) is formed in the disconnection detection signal layer 28. The short circuit detection signal pattern 37 transmits a short circuit detection signal for detecting a short circuit between the disconnection detection signal patterns 33 and 34 and the short circuit detection signal pattern 37. As shown in FIG. 9, one end of the short circuit detection signal pattern 37 is electrically connected to a short circuit detection terminal 38 formed on the connection terminal portion 23, and the other end of the short circuit detection signal pattern 37 is connected to the connection terminal portion 23. It is electrically connected to the short-circuit detection terminal 39 formed in In this embodiment, the disconnection detection signal patterns 33 and 34 and the short circuit detection signal pattern 37 are also formed in the disconnection detection signal layer 28 of the first folding part 6c and the second folding part 6d.

  As shown in FIG. 4, the terminal connection portion 23 is soldered and fixed to one surface (lower surface) 13 a of the substrate 13, and is disposed inside the case body 15. That is, the other end side of the flexible cable 6 is drawn into the case body 15 from between the upper end of the case body 15 and the one surface 13 a of the substrate 13, and is connected to the substrate 13 inside the case body 15. The upper surface side is covered with the substrate 13. Further, the magnetic head signal terminal 32 of the terminal connection portion 23 is connected to the demodulation IC 11 through a signal pattern in the substrate 13.

  As described above, the data signal pattern 31 is electrically connected to the signal terminal 20, and an analog output signal (second output signal) output from the signal terminal 20 is used as a data signal to generate a magnetic head signal. This is transmitted to the substrate 13 via the terminal 32. Further, as described above, since the magnetic head signal terminal 32 is connected to the demodulation IC 11 via the signal pattern in the substrate 13, the data signal transmitted to the substrate 13 is demodulated by the demodulation IC 11 and converted into digital form. This demodulated signal (second demodulated signal) is encrypted by the CPU 12 and becomes an encrypted signal (second encrypted signal). That is, in this embodiment, the data signal output from the magnetic head 5 is encrypted by the magnetic head 4.

(Main effects of this form)
As described above, in this embodiment, the signal terminal 10, the demodulation IC 11, and the flexible cable 14 are accommodated in the case body 15, and the upper end of the case body 15 is blocked by the substrate 13. Therefore, it is possible to prevent the signal line for skimming from being attached to the signal terminal 10, the electrode of the demodulation IC 11, the flexible cable 14, and the like. Further, in this embodiment, since the CPU 12 is a BGA type electronic component, the skimming signal is applied to the electrode of the CPU 12 that electrically connects the CPU 12 and the substrate 13 even when the CPU 12 is disposed outside the case body 15. It is possible to prevent the wire from being attached. Further, in the present embodiment, the signal pattern 16 that electrically connects the demodulation IC 11 and the CPU 12 on the substrate 13 is routed so as to enter the outer shape of the CPU 12 when viewed from the thickness direction of the substrate 13. Therefore, even when the CPU 12 is arranged outside the case body 15, it is possible to prevent the signal line for skimming from being attached to the signal pattern 16. Therefore, in this embodiment, it becomes possible to prevent the output signal and the demodulated signal before encryption from being extracted from the magnetic head 4 by the signal line for skimming.

  In this embodiment, the folded portion 6b is folded and fixed to the terminal connecting portion 6a so as to cover the terminal connecting portion 6a in which the through hole 22 through which the signal terminal 20 is inserted is formed. It is covered with the folded portion 6b. Therefore, it is possible to prevent a signal line for skimming from being attached to the signal terminal 20. In this embodiment, since the front surface and the back surface of the data signal layer 27 are covered with the disconnection detection signal layer 28, a criminal attaches a signal line for skimming to the data signal pattern 31. It is possible to detect that a criminal act is being performed using the disconnection detection signal patterns 33 and 34. Therefore, in this embodiment, it is possible to prevent the signal line for skimming from being attached to the data signal pattern 31. Furthermore, in this embodiment, the other end side of the flexible cable 6 is connected to the substrate 13 inside the case body 15, and the upper surface side is covered with the substrate 13. Thus, it is possible to prevent the signal line for skimming from being attached to the connection portion with the terminal 13. Therefore, in this embodiment, even if the CPU for encryption is not provided in the magnetic head 5, the data signal before encryption is taken out from the magnetic head 5, the flexible cable 6, and the substrate 13 by the signal line for skimming. Can be prevented. In this embodiment, the data signal output from the magnetic head 5 is encrypted by the magnetic head 4. For this reason, it is possible to prevent the unencrypted data signal from being taken out from the cable 7 by the signal line for skimming.

  Thus, in this embodiment, it is possible to prevent the output signal and demodulated signal before encryption from being extracted from the magnetic head 4 by the signal line for skimming, and the magnetic head 5, the flexible cable 6 and It is possible to prevent the unencrypted data signal from being taken out from the substrate 13 by the skimming signal line. Further, it is possible to prevent unencrypted magnetic data from being taken out from the cable 7 by the signal line for skimming. Accordingly, skimming can be prevented in the card reader 1 of the present embodiment.

  In this embodiment, the data signal from the magnetic head 5 is encrypted by the magnetic head 4. Therefore, encryption from the magnetic head 4 is possible even if the card reader 1 does not have an integrated circuit that integrates the encrypted magnetic data from the magnetic head 5 and the encrypted magnetic data from the magnetic head 4. The subsequent magnetic data and the encrypted magnetic data from the magnetic head 5 can be transmitted to the upper circuit 8 through a single interface. In this embodiment, since the analog output signal output from the magnetic head 5 is demodulated and encrypted by the magnetic head 4, the output signal of the magnetic head 4 and the common demodulation IC 11 and CPU 12 are used. The output signal of the magnetic head 5 can be demodulated and encrypted. Furthermore, in this embodiment, even if the CPU for encryption is not provided in the magnetic head 5, it prevents the data signal before encryption output from the magnetic head 5 from being taken out by the signal line for skimming. Is possible. Therefore, in this embodiment, even when the two magnetic heads 4 and 5 are mounted on the card reader 1, it is possible to reduce the cost of the card reader 1 while preventing skimming.

  In the present embodiment, since the signal terminal 20 is covered with the folded portion 6b, skimming can be prevented even if the other end side of the signal terminal 20 protrudes from the case body 21. Therefore, even when the standard magnetic head 5 in which the other end side of the signal terminal 20 protrudes from the case body 21 (that is, a general-purpose product of the magnetic head 5) is used, skimming can be prevented. As a result, in this embodiment, the cost of the magnetic head 5 can be reduced and the cost of the card reader 1 can be further reduced. Further, in this embodiment, even if the other end side of the signal terminal 20 protrudes from the case body 21, it is possible to prevent skimming, and therefore the work of connecting the flexible cable 6 to the signal terminal 20 while preventing skimming. Becomes easier.

  In this embodiment, the folded portion 6b connected to the terminal connection portion 6a in the longitudinal direction of the flexible cable 6 is covered by the first folding portion 6c connected to the terminal connection portion 6a on one end side in the width direction of the flexible cable 6, and the first A part of the first folding part 6 c is covered with a second folding part 6 d connected to the terminal connection part 6 a on the other end side in the width direction of the flexible cable 6. Therefore, on both sides in the width direction of the flexible cable 6, the end surface of the terminal connection portion 6a and the end surface of the folded portion 6b can be covered with the first folded portion 6c and the second folded portion 6d. Therefore, in this embodiment, it is possible to prevent the signal line for skimming from being attached to the signal terminal 20 from between the end face of the terminal connection portion 6a and the end face of the folded portion 6b on both sides in the width direction of the flexible cable 6. It becomes possible.

  In particular, in the present embodiment, since the second folding part 6d is soldered and fixed to the first folding part 6c, the second folding part 6d cannot be easily peeled off from the first folding part 6c. Therefore, in this embodiment, on both sides of the flexible cable 6 in the width direction, it is possible to effectively prevent the signal line for skimming from being attached to the signal terminal 20 from between the end surface of the terminal connection portion 6a and the end surface of the folded portion 6b. It becomes possible to do.

  In the present embodiment, the disconnection detection signal pattern 33 and the disconnection detection signal pattern 34 are connected by the land 24 of the first folding part 6c and the land 25 of the second folding part 6d that are fixed by soldering. Therefore, when the second folding portion 6d is peeled off from the first folding portion 6c, the disconnection of the disconnection detection signal patterns 33 and 34 is detected. Therefore, in this embodiment, it becomes possible to detect criminal acts by criminals at an early stage.

  In this embodiment, a short-circuit detection signal pattern 37 for transmitting a short-circuit detection signal for detecting a short circuit between the disconnection detection signal patterns 33 and 34 is formed in the disconnection detection signal layer 28. Therefore, in order to prevent the disconnection detection signal from functioning, a criminal act is performed by the short-circuit detection function of the short-circuit detection signal pattern 37 when a criminal performs a predetermined work on the disconnection detection signal patterns 33 and 34. Can be detected. That is, in this embodiment, it becomes easy to detect criminal acts by criminals.

(Other embodiments)
The above-described embodiments and modifications are examples of preferred embodiments of the present invention, but are not limited thereto, and various modifications can be made without departing from the scope of the present invention.

  In the form described above, the data signal pattern 31 of the flexible cable 6 transmits the output signal output from the signal terminal 20 to the substrate 13 as a data signal. In addition to this, for example, the data signal pattern 31 may transmit the demodulated signal (second demodulated signal) obtained by demodulating the output signal output from the signal terminal 20 to the substrate 13 as a data signal. That is, as shown in FIGS. 10 and 11, the magnetic head 5 demodulates the analog output signal output from the signal terminal 20 to generate a digital demodulated signal (second demodulated signal). May be provided. The signal terminal 20 is connected to an end of a coil of a magnetic data reading unit 49 configured by a core and a coil.

  In this case, the core, the coil, and the signal terminal 20 are accommodated in the case body 21 (see FIG. 11). The demodulation IC 51 is mounted on one end side of the flexible cable 6. As shown in FIG. 11, the mounting portion 6 f of the flexible cable 6 on which the demodulation IC 51 is mounted is fixed to the upper end of the case body 21 so that the demodulation IC 51 is disposed inside the case body 21. The terminal 20 is covered. A portion of the flexible cable 6 formed on one end side with respect to the mounting portion 6 f is connected to the signal terminal 20. The inside of the case body 21 is filled with resin, and the signal terminal 20, the demodulation IC 51, and the like are buried in this resin. In this case, the flexible cable 6 is not formed with the folded portion 6b, the first folded portion 6c, and the second folded portion 6d. Further, the signal terminal 20 may be connected to one end side of the flexible cable 6 via a lead wire or the like. At this time, the terminal connection portion 6 a is not formed in the flexible cable 6.

  In this case, the magnetic head signal terminal 32 of the terminal connection portion 23 of the flexible cable 6 is connected to the CPU 12 via a signal pattern in the substrate 13 (see FIG. 10). The demodulated signal is encrypted to generate an encrypted signal (second encrypted signal). In this case, since the demodulated signal is transmitted from the magnetic head 5 to the magnetic head 4 by the flexible cable 6, noise resistance is improved as compared with the case where the output signal from the signal terminal 20 is transmitted by the flexible cable 6. It becomes possible to increase. The mounting portion 6f in this case is a terminal cover that covers the signal terminal 20 that is the second signal terminal. In this case, the demodulation IC 51 is a second demodulation electronic component.

  In the embodiment described above, the magnetic head 4 is a 3-channel type magnetic head, and the magnetic head 5 is a 1-channel type magnetic head. However, the magnetic head 4 is a 1-channel type magnetic head, and the magnetic head 5 is 3 A channel-type magnetic head may be used. In the embodiment described above, one magnetic head 5 is connected to the magnetic head 4 via the flexible cable 6, but a plurality of magnetic heads 5 are connected to the magnetic head 4 via the flexible cable 6. May be. The card reader 1 may include a plurality of magnetic heads 4, and one or a plurality of magnetic heads 5 may be connected to each of the plurality of magnetic heads 4 via a flexible cable 6.

  In the embodiment described above, the folded portion 6b is folded back so as to cover the terminal connecting portion 6a and fixed to the terminal connecting portion 6a. In addition, for example, the first folding portion 6c may be folded back so as to cover the terminal connection portion 6a and fixed to the terminal connection portion 6a. In this case, the second folding part 6d is folded back so as to cover the first folding part 6c and is fixed to the first folding part 6c, and the folding part 6b connects the first folding part 6c and the second folding part 6d. It may be folded back so as to be fixed to the first folding part 6c and the second folding part 6d, or the folded part 6b may be folded back so as to cover the first folding part 6c and fixed to the first folding part 6c. In addition, the second folded portion 6d may be folded back so as to cover the folded portion 6b and fixed to the folded portion 6b. In this case, the folded portion 6b may not be folded. In this case, the first folding part 6c is a terminal cover part that is folded back so as to cover the terminal connection part 6a and is fixed to the terminal connection part 6a.

  In the embodiment described above, the second folding portion 6d is folded back so as to cover the first folding portion 6c and is fixed to the first folding portion 6c. In addition to this, for example, the first folding portion 6c is formed so that the second folding portion 6d does not overlap the first folding portion 6c, and the folded portion 6b is formed by the first folding portion 6c and the second folding portion 6d. The first folded portion 6c and the second folded portion 6d may be folded back and fixed to the folded portion 6b so as to be covered. In this case, the first folded portion 6c and the second folded portion 6d are outer cover portions that are folded back so as to cover the folded portion 6b that is a terminal cover portion and are fixed to the folded portion 6b.

  In the embodiment described above, the flexible cable 6 includes the first folding part 6c and the second folding part 6d, but the flexible cable 6 may not include the first folding part 6c and the second folding part 6d. . In this case, the configuration of the flexible cable 6 can be simplified. In the embodiment described above, the short circuit detection signal pattern 37 is formed in the disconnection detection signal layer 28, but the short circuit detection signal pattern 37 may not be formed in the disconnection detection signal layer 28.

  In the embodiment described above, the CPU 12 is disposed outside the case body 15, but the CPU 12 may be disposed inside the case body 15. In the above-described form, the CPU 12 is a BGA type electronic component in which a plurality of solder balls are arranged on the mounting surface 12a on the substrate 13, but the CPU 12 has a plurality of planar electrodes latticed on the mounting surface 12a. It may be an LGA (Land Grid Array) type electronic component arranged in a shape, or a PGA (Pid Grid Array) type in which a plurality of pin-shaped electrodes with sharp tips are arranged in a grid pattern on the mounting surface 12a. The electronic component may be used.

  In the embodiment described above, the demodulating IC 11 and the CPU 12 are mounted on the substrate 13 so that the demodulating IC 11 enters the outer shape of the CPU 12 when viewed from the thickness direction of the substrate 13. When viewed from above, the demodulation IC 11 and the CPU 12 may be mounted on the substrate 13 so that a part of the demodulation IC 11 protrudes from the outer shape of the CPU 12.

  In the above-described embodiment, the magnetic heads 4 and 5 are data reproducing magnetic heads for reading the magnetic data recorded on the card 2, but the magnetic heads 4 and 5 are magnetic data reading and magnetic data. It may be a magnetic head for data reproduction / recording that performs writing of. In the embodiment described above, the card reader 1 is a swipe type card reader. However, the card reader to which the present invention is applied is a dip type in which the user manually inserts the card 2 into the apparatus and pulls it out from the apparatus. Or a card transport type card reader provided with a card transport mechanism.

1 card reader 2 card 4 magnetic head (first magnetic head)
5 Magnetic head (second magnetic head)
6 Flexible cable 6a Terminal connection part 6b Folded part (terminal cover part)
6c 1st folding part (outer cover part)
6d 2nd folding part (2nd outer cover part)
6f Mounting part (terminal cover part)
10 Signal terminal (first signal terminal)
11 Demodulation IC (Electronic parts for demodulation)
12 CPU (electronic parts for encryption)
13 Substrate 14 Flexible cable (cable)
15 Case body 20 Signal terminal (second signal terminal)
21 Case body (second case body)
22 Through hole 27 Data signal layer 28 Disconnection detection signal layer 31 Data signal pattern 33, 34 Disconnection detection signal pattern 37 Short circuit detection signal pattern 51 Demodulation IC (second demodulating electronic component)

Claims (9)

A first magnetic head and a second magnetic head for reading magnetic data recorded on a card; and a flexible cable for electrically connecting the first magnetic head and the second magnetic head;
The first magnetic head includes a first core, a first coil wound around the first core, a first signal terminal to which an end of the first coil is connected, A demodulating electronic component that demodulates an analog output signal output from the first signal terminal to generate a digital demodulated signal, and an encryption electronic component that encrypts the demodulated signal to generate an encrypted signal A board to be mounted; a cable that electrically connects the demodulating electronic component and the first signal terminal; the first core, the first coil, the first signal terminal, and the cable; A case body that is accommodated and to which the substrate is fixed;
The second magnetic head includes a second core, a second coil wound around the second core, and a second signal terminal to which an end of the second coil is connected. ,
The flexible cable covers a data signal layer on which a data signal pattern for transmitting a data signal output from the second magnetic head is formed, and covers a front surface and a back surface of the data signal layer. It is formed in a multilayer structure having a disconnection detection signal layer on which a disconnection detection signal pattern for transmitting a disconnection detection signal for detecting the disconnection is formed,
A terminal cover that is fixed so as to cover the second signal terminal is formed on one end of the flexible cable,
The other end side of the flexible cable is connected to the substrate,
The card reader, wherein the data signal is encrypted by the first magnetic head.   2. The card reader according to claim 1, wherein the other end side of the flexible cable is connected to the substrate inside the case body and covered with the substrate. On one end side of the flexible cable, a terminal connection portion in which a through hole through which the second signal terminal is inserted is formed,
The terminal cover part is folded back so as to cover the terminal connection part and fixed to the terminal connection part,
The data signal is an analog second output signal output from the second signal terminal,
The demodulating electronic component demodulates the second output signal to generate a digital second demodulated signal,
3. The card reader according to claim 1, wherein the encryption electronic component encrypts the second demodulated signal to generate a second encrypted signal. The second magnetic head includes a second demodulation electronic component that demodulates an analog second output signal output from the second signal terminal to generate a digital second demodulation signal; A second case body in which the second core, the second coil, and the second signal terminal are accommodated and the flexible cable is fixed;
The second demodulating electronic component is mounted on the terminal cover,
The terminal cover is fixed to the second case body so that the second demodulating electronic component is disposed inside the second case body,
The data signal is the second demodulated signal;
3. The card reader according to claim 1, wherein the encryption electronic component encrypts the second demodulated signal to generate a second encrypted signal.   The card reader according to claim 1, further comprising one first magnetic head. The flexible cable is formed in an elongated shape elongated in one direction,
The card reader according to claim 3, wherein the terminal cover portion is formed to be connected to the terminal connection portion in a longitudinal direction of the flexible cable.   The flexible cable includes an outer cover formed so as to be connected to the terminal connection portion in a width direction of the flexible cable, and folded back so as to cover the terminal cover and fixed to the terminal cover. The card reader according to claim 6. The flexible cable includes a second outer cover that covers the outer cover,
The outer cover portion is formed to be connected to one end of the terminal connection portion in the width direction of the flexible cable,
The second outer cover portion is formed so as to be connected to the other end of the terminal connection portion in the width direction of the flexible cable, is folded back so as to cover the outer cover portion, and is fixed to the outer cover portion. The card reader according to claim 7.   9. The short circuit detection signal pattern for transmitting a short circuit detection signal for detecting a short circuit with the disconnection detection signal pattern is formed in the disconnection detection signal layer. The card reader described in 1.

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