JPH08307491A - Antenna system for chasing telephone - Google Patents

Abstract

PURPOSE: To realize the personal telephone service with an IC card or a telephone set having a simple structure by incorporating an antenna element for personal authentication, whose communication area is limited only to one person who hooks off the telephone, in the receiver, independent of an antenna element for position registration. CONSTITUTION: When the person who has a remote control type radio IC card 10 where personal ID information is recorded sits at the desk where a telephone set body 1 for personal number service is installed, information is sent from the card 10 to an antenna element 2 for position registration of the body 1 by radio, and the personal number service system performs personal position registration. Next, when call information to the person sitting at the desk is received by an exchange 9, call information is transmitted to the card 10 from the antenna element 2 of the body 1, and information of the call is transmitted to the specific person through an output device like a sounder. The person who receives call information is connected to the body 1; and when a receiver 6 is hooked off, it is reported to the system by the communication between the antenna for person authentication installed in the receiver 6 and the card 10 that the person who receives the call is valid. This system is connected to the body 1 by a line, and personal speech is possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna system for communication between an IC card for personal authentication and a telephone in a follow-up telephone using a data carrier using an IC memory (hereinafter referred to as an IC card for convenience). It is about.

[0002]

2. Description of the Related Art A so-called personal number service, which is widely used at present, from a communication called by a number assigned to a telephone to a communication called by a number assigned to an individual is considered (for example, the Institute of Electronics, Information and Communication Engineers. Magazine B-1 Vol.J72-B-1 No.2 pp.94-108 (1989)). In the personal number service, the location (location information) of the called party
Is always managed by the telephone network and receives a personal number,
Since the public network is a so-called chase phone, which refers to location information and connects the line to the telephone closest to the relevant individual, in the personal number service, the registration method of individual location information and identification of the user individual (personal authentication) Method matters. As a method of realizing this personal number service, a method of using an IC card having personal ID information is considered. In particular, if an IC card that can communicate with an IC card reader / writer (hereinafter referred to as R / W) in a contactless manner is used, location registration and personal authentication can be performed without inserting the card into the R / W, so that more people can use it. A gentle system is possible.

FIG. 6 shows a comparison of communication distances of various non-contact type IC cards. The communication distance of a contactless type dotted line card using capacitive coupling is about 1 cm or less, and that of a proximity wireless card using electromagnetic coupling is 10 cm or less. Further, the communication distance of the medium wave band remote type wireless card utilizing electromagnetic induction is about 1 m or less, and that of the microwave band remote type wireless card is about 5 m or less. In this way, a remote type wireless card that uses the microwave band and medium wave band has a wide communication range, and in addition, an antenna with characteristics close to omnidirectional is used to achieve a wider communication range. Although it is suitable for location registration to grasp the person inside, it is not possible to identify one person and personal authentication is not possible.

7 and 8 show directional characteristics of a patch antenna and a dipole antenna which are usually used in a remote type wireless IC card. 7 and 8, 0, 30, 6 of the circumference
0, ... indicates an angle, 41 in the center indicates a patch element,
Reference numeral 44 is a dipole element, and the area surrounded by a ● symbol indicates directivity. In the patch antenna, as shown in FIG. 7, the communication area exists only on one side of the ground plane,
Since the communication area is large, if the antenna element (patch element 41) is installed in the main body of the telephone, it is impossible to identify the called individual when a person other than the called person is near the telephone. Further, in the dipole antenna, as shown in FIG. 8, there is a communication area extending over 360 degrees around the antenna. Therefore, when the antenna element (dipole element 44) is installed in the telephone, the called person and the telephone are sandwiched on the opposite side. People in the area also enter the communication area and cannot identify the individual. On the other hand, a contactless type wireless card using electromagnetic coupling or capacitive coupling can identify each individual who has an IC card because of the short communication distance, but obtains information about the person in the room. I can't. As a result, utilizing the characteristics of remote type and proximity type,
A card equipped with both types of functions (Japanese Patent Application No. 6-175264
No. 6) and a telephone (see Japanese Patent Application No. 6-266785).

[0005]

A system using an IC card having both of these two systems can operate as a personal telephone system, but it is difficult to downsize the card. In addition, in the conventional chase phone, a proximity type IC card is used for personal authentication, so when the card is inserted into the card reader of the phone, placed at a specific position, or held over, a normal call is made. There were other inconveniences that forced me to do other things. Further, the function of the remote type wireless IC card for position registration must be provided in the card and the telephone, and it has been difficult to miniaturize the card.

It is an object of the present invention to use remote type wireless I for personal authentication.
An object of the present invention is to provide a chase phone antenna system in which a telecommunications antenna is configured so that communication can be performed only with one individual who can answer a call so that the C card can be used.

[0007]

A chase telephone antenna system according to the present invention is for personal authentication between a data carrier using an IC memory and a telephone in a chase telephone system provided with a position registration antenna element. In the antenna system used for the communication, a personal authentication antenna element whose communication area is only one person who picks up the receiver is incorporated in the receiver of the telephone separately from the position registration antenna element.

The personal authentication antenna element is provided with a reflector or a shield plate so that only one individual can pick up the receiver in the communication area.

Further, the personal authentication antenna element is adapted to start its operation when the receiver of the telephone is picked up.

[0010]

In the present invention, by limiting the communication area of the remote type wireless IC card to individuals who answer the telephone, the wireless type IC card can be used for personal authentication. Further, since the communication area of the antenna element for personal authentication uses only one individual who picks up the receiver, the reflector or the shield is used, so that the configuration is simple. Furthermore, by installing the antenna element for personal authentication in the handset and linking the operation of the antenna element for personal authentication with the hook of the telephone, it becomes possible to perform personal authentication just by picking up the handset. No special operation is required, and the emission of radio waves is suppressed except when personal authentication is performed, which enables a stable system with less malfunction. By combining the above operations, it becomes possible to provide a personal telephone service for location registration and personal authentication using only a remote wireless IC card.

[0011]

【Example】

<Embodiment 1> FIG. 1 shows, as a first embodiment of the present invention, an example of a personal telephone using a patch antenna having a shield plate as an antenna element for personal authentication. FIG. 2 shows the configuration of the antenna used. FIG. 3 shows the radiation directivity of the patch antenna.

In FIG. 1, 1 is a telephone main body, 2 is a position registration antenna element, and a patch element is used for a remote type wireless IC card. Reference numeral 3 is a microwave transmitting / receiving circuit for position registration, and 4 is an antenna element for personal authentication, which is for a remote type wireless IC card. Reference numeral 5 is a personal authentication microwave transmission / reception circuit, and 6 is a receiver, in which a personal authentication antenna element 4 and a personal authentication microwave transmission / reception circuit 5 are incorporated. 7 is a flexible coaxial cable for electrical connection, 8 is a signal processing circuit,
Reference numeral 9 is an exchange, and 10 is a remote type wireless IC card. As the position registration antenna element 2, an antenna using a patch element is used in this embodiment, but if it is an antenna capable of communicating with the remote wireless IC card 10 such as a dipole element or a loop element, It goes without saying that the shape and type are not limited.

In FIG. 2, 41 is a patch element, 42 is a shield plate, and 43 is a ground plane. In this embodiment, only the personal authentication antenna element 4 and the personal authentication microwave transmission / reception circuit 5 are installed in the handset 6, and the handset 6 is connected to the telephone body 1 by the flexible coaxial cable 7. The position registration microwave transmission / reception circuit 3 and the signal processing circuit 8 are installed in the telephone body 1, but the personal authentication microwave transmission / reception circuit 5 is installed in the telephone body 1, There is no problem with the configuration in which the power source and the electric cable for transmitting and receiving digital signals are connected to the main body 1.

As shown in FIG. 2, the personal authentication antenna element 4 used in this embodiment is different from the antenna shown in FIG. 7 in which the shield plate 42 is not provided by combining the patch element 41 with the shield plate 42. As shown in FIG. 3, the communication area is limited to one direction. Therefore, by installing the personal authentication antenna element 4 in the handset 6 so that the area faces the person who picks up the handset 6, and adjusting the antenna output, only the person who receives the call enters the communication area. Can be created and can communicate only with specific individuals. Further, in this embodiment, the hook of the telephone turns on / off the antenna operation for personal authentication.
We have realized a more stable system that does not transmit carriers except when necessary. The antenna used in this embodiment is a shield plate 42 that covers almost half of the patch antenna.
However, the present invention only needs to be able to specify the directivity of the antenna, not the structure or configuration thereof.

Next, the operation of the embodiment shown in FIG. 1 will be described. First, a remote wireless IC card 1 that records individual ID information
When a person with 0 sits on the desk where the telephone body 1 for personal number service is installed, the remote wireless IC card 10
Information is wirelessly transmitted from the telephone to the position registration antenna element 2 of the telephone body 1, and the personal number service system performs the position registration of the individual. Next, when the exchange 9 receives the call information for the person sitting at the desk, the call information is wirelessly transmitted from the position registration antenna element 2 of the telephone body 1 to the remote type wireless IC card 10, and an output device such as a sounder. Through the call information of the call is transmitted to a specific individual. The individual who receives the call information is connected to the telephone body 1 and picks up the handset 6 equipped with the antenna system according to the present invention, whereby the antenna for personal authentication installed in the handset 6 and the remote wireless IC card 10 are installed. The communication between the two notifies the system that the individual receiving the call is valid (personal authentication). The system, which has received the personal authentication, is connected to the relevant telephone main body 1 through a line, and an individual call can be made. If this individual moves to another desk, the call becomes possible after the procedure similar to that described above for the telephone body 1 at the destination desk.

<Embodiment 2> As another embodiment, Embodiment 1
The personal authentication antenna element 4 of FIG.
That is, a case where the dipole element 44 and the reflection plate 45 having the characteristics shown in FIG. As shown in FIG. 4, by combining the dipole element 44 with the reflection plate 45,
Since the reflection plate 45 reflects the radiation electromagnetic field in the direction in which the reflection plate 45 exists when viewed from the dipole element 44, the radiation electromagnetic field is different from the radiation directivity (FIG. 3) of the dipole antenna having no reflection plate. The directionality of can be narrowed down to one direction. Therefore, by installing the antenna element 4 for personal authentication in the handset 6 so that the communication area faces the person who picks up the handset 6, and adjusting the antenna output, only the person who receives the call enters the communication area. Can be created, and it becomes possible to communicate only with specific individuals. Although the dipole element 44 and the reflection plate 45 are used in the second embodiment, the same directivity can be obtained even in an array antenna in which the dipole elements 44 are arranged in parallel, and therefore the array antennas are installed in the handset 6. However, it goes without saying that the chase telephone antenna system of the present invention can be constructed without any problem. Further, similarly to the first embodiment, the second embodiment also specifies the directivity of the antenna and does not specify the structure or configuration of the dipole element 44 and the reflection plate 45.

[0017]

The follow-up telephone antenna system according to the present invention is used for communication for personal authentication between a data carrier using an IC memory and a telephone in a follow-up telephone system equipped with a position registration antenna element. In the antenna system described above, a personal authentication antenna element whose communication area is only one person who picks up the receiver is incorporated in the receiver of the telephone separately from the position registration antenna, so that an IC card or a telephone having a simple structure is provided. Now, the personal telephone service becomes possible.

Further, since the personal authentication antenna element is provided with a reflector or a shield plate and the communication area is limited to one individual who picks up the receiver, it can be formed in a small size.

Further, when the handset of the telephone is picked up, the antenna element for personal authentication starts its operation in conjunction with this, so that the operation for personal authentication is one of a series of conventional operations for making a telephone call. It is the first to enable human-friendly personal telephone service, which is less burdensome for users because it is built into.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an antenna system for a chase phone according to the present invention.

FIG. 2 is a perspective view showing an example of a personal authentication antenna element used in the present invention.

FIG. 3 is a diagram showing the directivity of the personal identification antenna element shown in FIG.

FIG. 4 is a perspective view showing another example of the personal authentication antenna element used in the present invention.

5 is a diagram showing the directivity of the antenna element for personal authentication shown in FIG.

FIG. 6 is a diagram comparing communication distances of various conventional non-contact type IC cards.

FIG. 7 is a diagram showing the directivity of an antenna using a normal patch element.

FIG. 8 is a diagram showing the directivity of an antenna using a normal dipole element.

[Explanation of symbols]

 1 Telephone main body 2 Antenna element for position registration 3 Microwave transmission / reception circuit for position registration 4 Antenna element for personal authentication 5 Microwave transmission / reception circuit for personal authentication 6 Handset 7 Flexible coaxial cable 8 Signal processing circuit 9 Switch 10 remote type wireless IC card 41 patch element 42 shield plate 43 ground plane 44 dipole element 45 reflector

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Ichinose 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (3)

[Claims] 1. An antenna system used for communication for personal authentication between a data carrier using an IC memory and a telephone in a chase telephone system equipped with an antenna element for position registration, the communication area being a receiver. An antenna system for a chase telephone, wherein an antenna element for personal authentication for only one individual is incorporated in the handset of the telephone separately from the antenna element for position registration. 2. The antenna system for chase telephones according to claim 1, wherein the antenna element for personal authentication is provided with a reflector or a shield plate so that only one individual can pick up the receiver in the communication area. 3. The antenna system for a chase phone according to claim 1, wherein the antenna element for personal authentication starts its operation in association with the handset of the telephone when picked up.