JPH11122375A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a radio connection function for radio communication or a wired connection function for wired communication as required. SOLUTION: The portable telephone set 1 is provided with a wire connection function 4 by a direct couple means with respect to wired communication and switches a radio connection function 3 for radio communication or the wired connection function 4 for wired communication as required, and communication at an inexpensive speech cost of a wired phone call is attained at the transmission without losing a convenience such as a telephone directory function for the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is called a portable telephone, a simple portable telephone (PHS), or the like. It is about.

[0002]

2. Description of the Related Art FIG. 4 shows an example of the configuration of a conventional portable telephone 90. This portable telephone 90 basically has a call function 91 for processing a voice signal and the like, and a line connection 91 for making a line connection. And a wireless connection function 92. A voice processing unit 91a including a microphone, a speaker, and the like, and a signal processing unit 91b that performs an appropriate operation such as generation of a ringing tone in accordance with information in a dial operation or a received wireless signal are provided in the calling function 91. Reference numeral 92 performs connection with a base station in accordance with a signal from the signal processing unit 91b.

FIG. 5 shows a state of connection by the portable telephones 90.
0, for example, the mobile phone 90 (A) exists in the communication coverage area of the base station 93 (C), and the mobile phone 90 (B)
Is present in the communication coverage area of the base station 93 (A), it means that the mobile phone 90 (A) and the base station 93 (A)
(C) and the mobile phone 90 (B) and the base station 93
The current positions of the mobile phones 90 (A) and 90 (B) are recognized in advance in the exchange 94 by automatic communication with (A).

At this time, for example, when the telephone number of the mobile phone 90 (B) is input into the dial to make a call from the mobile phone 90 (A), the exchange 94 connects to the base station 93 (A).
The mobile phone 90 (B) decodes the information contained in the wireless signal by the signal processing unit 91b and establishes a connection. Further, the telephone number dialed into the mobile phone 90 (A) is connected to a wired telephone 8 connected to a public line.
If it is 0 (A), the exchange 94 connects to the wired exchange 81, and the wired exchange 81
Call 0 (A).

When a telephone number of the portable telephone 90 (A) is dialed in from the wired telephone 80 (A) to make a call, the wired exchange 81 is connected to the exchange 94, and the exchange 94 is connected to the base station 93. The mobile phone 90 (A) existing in the communication coverage area of (C) is called.
Therefore, the mobile phone 90 (A) can transmit and receive data at any place.

[0006]

However, in the above-mentioned portable telephone 90, convenience is particularly brought about during reception while the mobile phone is moving, and when transmitting, the mobile phone 90 can be a mobile phone using wired communication (public line). In an urban area or the like where the communication is completed, the convenience is not so high, and the communication cost is higher than that of the wired communication.

[0007] Furthermore, the base station 93 of the mobile phone 90 is installed mainly in a population-intensive area due to its short history compared to a wired phone. Even if there are still many areas where calls cannot be made, and even if you have a mobile phone 90 with useful functions such as a telephone directory function, you must manually perform transmission such as dialing from a public telephone, for example. Problems, such as loss of mobility and convenience.

[0008]

According to the present invention, as a specific means for solving the above-mentioned conventional problems, there is provided a portable telephone provided with a wireless connection function for wireless communication and a call function. The mobile phone is provided with a wired connection function by a direct connection means for wired communication, and is capable of switching between a wireless connection function for wireless communication and a wired connection function for wired communication as required. The problem is solved by providing.

[0009]

Next, the present invention will be described in detail based on an embodiment shown in the drawings. In FIG. 1, reference numeral 1 denotes a mobile phone according to the present invention. This mobile phone 1 is basically similar to a conventional mobile phone, and has a call function 2 for processing voice, dial operation, etc., and a base station. And the like and a wireless connection function 3.

Here, the portable telephone 1 of the present invention is provided with a connection function for wired communication, that is, a wired connection function 4 in addition to the above-described configuration. The wired connection function 4 includes, for example, a microphone 21a and a speaker 21b. A signal processed by the call function 2 comprising an audio processing unit 21 for attaching a telephone line 10 and the like, and a signal processing unit 22 for performing an appropriate operation such as generation of a dial pulse signal or a tone dial signal in accordance with the operation of the dial button 22a. Connection, and in preparation for this, the wired connection function 4
Is provided with a connector 4a that enables connection to a modular jack provided as a standard terminal on the public line 10.

At this time, the wired connection function 4 is called a modem (modulator / demodulator), and is used to convert a digital signal into an analog signal when a personal computer or the like is connected to the public line 10. What is necessary is just to have a structure almost similar to the equipment which is present.

Further, in the present invention, the wireless connection function 3
The wired connection function 4 is of a switching type in which either one is selected by a switch or the like, and the two connection functions 3 and 4 are not operated at the same time or do not pause at the same time. . Note that the above-described switching may be such that switching between the wireless connection function 3 and the wired connection function 4 is automatically performed by, for example, attaching and detaching the connector 4a to and from the modular jack.

Next, the operation and effect of the portable telephone 1 of the present invention having the above configuration will be described. First, in the mobile phone 1 of the present invention, when the wireless connection function 3 is selected, it goes without saying that the conventional operation is performed. .

A modular jack 11a for wired communication
In a place where is present, by selecting the wired connection function 4 and connecting the connector 4a to the modular jack 11a, the terminal can be used as a terminal device (telephone) of the public line 10 which is wired communication. It can be used for communication.

Here, the mobile phone 1 using a wireless line
Considering the difference between the charging system and the telephone using the public line 10, the mobile telephone 1 has a telephone number assigned to the mobile telephone, and the mobile telephone 1 can be used from any position. Can be charged to the user.

However, in the public line 10,
Since a telephone number is assigned to the line, when communication is performed by connecting the connector 4a to an arbitrary modular jack 11a, charging is performed for the connected public line 10 and the use of the mobile phone 1 is performed. The user cannot be charged.

Therefore, one solution to the above-mentioned billing is to use a public telephone. At present, even in the public line 10, an ISDN (Integrated Services Digital Network) is used.
A digital line 10D called a line has become widespread, and a large number of public telephones 11 with a modular jack 11a have been installed in the city in accordance with this, especially in a large urban area.

Therefore, if the connector 4a of the portable telephone 1 of the present invention is connected to such a modular jack 11a of the public telephone 11, it can be used as a terminal device for wired communication very easily even when going out. The call cost can be paid by using cash or a telephone card, that is, the call cost of the public line 10 is good. At this time, the telephone directory function in the mobile phone 1 can be used, and the convenience of the mobile phone 1 is not impaired.

In addition, since it is said that the possibility of eavesdropping during wireless communication is particularly high in the analog type portable telephone 1, a wired function is used when performing communication of important contents. By using, the confidentiality can be improved. In addition, when performing data communication or the like, the use of the wired function can improve communication quality in both transmission and reception.

Here, in the public line 10, even if the digital line 10D is used, as described above, the public telephone 11 having the modular jack 11a is provided.
, A unique phone number is set for the line,
Therefore, the telephone number is not specified for the mobile phone 1 connected to the modular jack 11a. Therefore, it is impossible to make an incoming call, but the call cost is originally charged for the outgoing call. It does not detract from the purpose of reducing call costs.

Note that, at present, the public telephone 11 provided with the modular jack 11a is only for the digital line 10D.
Even if the public telephone 11 is connected to 0A, if the public telephone 11 is connected to the line by inserting a coin and inserting a telephone card, it can be similarly charged and used by providing the modular jack 11a. Needless to say, it becomes possible.

FIG. 2 shows another embodiment of the present invention. In this embodiment, only a modular jack 11a is provided on a public line 10 (either an analog line 10A or a digital line 10D). Therefore, when the connector 4a is connected to the cellular phone 1 to the modular jack 11a, the wired exchange 12 recognizes that the telephone number normally assigned to the public line 10 is about to be used.

Therefore, in this embodiment, the wired exchange 12
For example, it is assumed that a predetermined dial signal such as “*”, “#”, or a character string specifying the mobile phone 1 can be recognized, and when this dial signal is received for the first time, communication with the wireless exchange 13 is performed. The connection is established, and charging for the public line 10 is stopped.

On the other hand, on the side of the wireless exchange 13 to which the connection has been made, the telephone number of the portable telephone 1 may be read from the signal transmitted from the portable telephone 1 and the line connection may be made by the subsequent dial signal. When the mobile phone 1 is connected to the modular jack 11a in any location,
, The usage fee for the public line 10 may be paid to the wired communication carrier during the above-mentioned charging.

By doing so, it is not necessary for a wireless communication company that operates the mobile phone 1 to install base stations in an area where the use efficiency is not so high, for example, and improvement in management efficiency can be expected. . On the other hand, public line 1
In a remote area as described above, only the modular jack 11a needs to be installed in the remote area as described above. The use efficiency of the line is improved without an increase or the like.

Incidentally, if the penetration rate of the portable telephone 1 is improved more than the present situation and, for example, a state where most individuals possess it, the public telephone 11 can be used even in a place other than a remote place as described above.
It is no longer necessary to install the modular jack 11a, and only the modular jack 11a needs to be installed, which can be coped with at a low cost, and a synergistic effect such as an increase in the number of installation locations more than the current one can be obtained.

In the case of a wired communication carrier, charging is performed by the wireless communication carrier, so that, for example, patrols for the maintenance of the public telephone set 11, collection of cash, sale of telephone cards, and counterfeiting problems. It will be open and this will also improve management efficiency.

FIG. 3 shows still another embodiment of the present invention.
In the previous embodiment, the wired connection function 4 provided in the mobile phone 1 is provided so as to correspond to a so-called public line 10 installed over a wide area. In this embodiment, for example, a CATV (cable television) is used. Wired connection function 5 to a network whose area is limited, such as the network of
The wired connection function 5 is provided with a connector 5a.

Here, when the above-mentioned local area network 30 is a CATV network, the laying range of the line generally covers one or more administrative divisions, and most of the communication is performed within this range. Often have. Further, since a line having a larger capacity than the public line 10 using a twisted pair wire described in the previous embodiment such as a coaxial cable or an optical fiber is employed as the line, the computer 32 connected to the local area network 30 may be used. It is easy to read a unique telephone number or the like built in the mobile phone 1.

Therefore, the local area network 30
If the modular jack 31 attached to the facility is used, the user can be specified regardless of where the modular jack 31 is used, and the line operator can perform charging. It is not necessary to prepare a public telephone with a telephone. In this case, it is sufficient to provide only the modular jack 31, so that the facility cost can be reduced when implementing the present invention.

Therefore, a large number of modular jacks 31 can be easily installed in an area where the local area network 30 is laid, such as a railway station, a bus station such as a transportation facility, a public facility, or a downtown area. Convenience also improves on the side. When there is a request for a call outside the area where the local area network 30 is laid, the call can be easily made by connecting the line of the local area network 30 to the public line 10.

In the above manner, the carrier operating the local area network 30 can undertake most of the telephone communication in the area in addition to the conventional image distribution, and is merely a viewing fee. It is possible to expand the contents of the business, and can compete with, for example, broadcasters using satellite communication.

[0033]

As described above, according to the present invention, the portable telephone is provided with the wired connection function by the direct connection means for the wired communication, and the wireless connection function for the wireless communication and the wired connection function for the wired communication as required. By using a mobile phone that can be switched, it is possible to receive calls regardless of the user's location, without losing the superiority of a mobile phone, and at the time of transmission the inexpensive call cost of a wired phone It can be used without losing the convenience provided in the mobile phone such as the telephone directory function, and has an extremely excellent effect of reducing the economic burden on the user.

On the telecommunications carrier side, the cost of installing a base station and the like can be reduced by assuming that a wired line can be used in a remote place where the use of mobile phone carriers is not so expected. In remote areas, etc., it is possible to improve the line use efficiency only by providing a connector without installing a public telephone, and it is possible to avoid problems such as toll collection, telephone maintenance, and use of a forged telephone card. In addition, local area network operators have the effect of enabling diversified management and increasing business opportunities.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a portable telephone according to the present invention.

FIG. 2 is an explanatory view showing another embodiment of the portable telephone according to the present invention.

FIG. 3 is an explanatory view showing still another embodiment of the portable telephone according to the present invention.

FIG. 4 is an explanatory diagram showing a configuration of a conventional example.

FIG. 5 is an explanatory diagram showing a state of line connection in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mobile telephone 2 ... Talk function 21 ... Voice processing part 22 ... Signal processing part 3 ... Wireless connection function 4, 5 ... Wire connection function 4a, 5a ... Connector 10 ... Public line 10A ... Analog line 10D Digital line 11 Public telephone 11a Modular jack 12 Wired exchange 13 Wireless exchange 30 Local area network 31 Modular jack

Claims (2)

[Claims] 1. A mobile phone provided with a wireless connection function for wireless communication and a telephone call function, wherein the mobile phone is provided with a wired connection function by a direct connection means for wired communication, and is provided with a wireless communication function as required. A mobile phone capable of switching between a wireless connection function and a wired connection function for wired communication. 2. The mobile phone according to claim 1, wherein the wired communication is a local area network, and the wired connection function is a wired connection function corresponding to the local area network.