JP3097239B2 - Mobile phone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone utilizing wireless communication called a cordless telephone or the like.

[0002]

2. Description of the Related Art In recent years, various cordless telephones have been developed. This cordless telephone comprises a base unit (base station) connected to the exchange (telephone office) side via a telephone line, and a wireless slave unit (mobile station). Communication takes place. As a communication method between the master unit and the slave unit in this case, for example, a digital cordless telephone system for wirelessly transmitting an audio signal converted into digital data has been developed.

According to this cordless telephone, the child device can be freely carried within a certain range within a predetermined distance from the parent device, which is convenient in use.

In the case of a digital cordless telephone, a slave unit is a personal communication network (PCN) or a personal handy phone (PH).
P) etc., so that it can be used as a slave unit of a telepoint system.

[0005] In this telepoint system, a number of base stations corresponding to a base unit of a cordless telephone are installed in a downtown area or the like. And wireless communication between the base station and
In this configuration, a slave unit can be connected to a telephone line via a base station of a telepoint system. Since the cordless telephone handset can be used with this telepoint system, it can be used as a portable telephone conforming to a cellular telephone (such as a car telephone) using a relatively large wireless telephone line. It is convenient.

[0006]

By the way, in consideration of use in a telepoint system, this type of cordless telephone handset is small and lightweight so that it can be easily carried outdoors. Must be configured. However, small phones are not always easy to use. That is, since a small telephone uses a small speaker, the sound quality is inconvenient.Because of the miniaturized shape, the microphone and the speaker that constitute the receiver must always be provided to the caller. It is necessary to bring the phone close to the phone, and it is difficult to perform a so-called hands-free call in which a call is made while the telephone is left. Furthermore, since a small battery is mounted for weight reduction, there is a disadvantage that the talkable time (or standby time) is short, and the talkable time is short for a telephone used indoors.

It is therefore an object of the present invention to provide a portable telephone which can be easily carried outdoors and which is easy to use indoors.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a telephone book comprising a first housing as shown in FIGS. 1 and 2, for example.
The body 10 and the second housing capable of housing the first housing inside
And a portable telephone composed of an adapter 20 composed of
The telephone body 10 includes a transmission / reception circuit 11 for performing wireless communication with a predetermined base station, a first speaker 15 and a first microphone 13 connected to the transmission / reception circuit 11, and a power supply connected to the transmission / reception circuit 11. Circuit 17 and a terminal 19 connectable to an external speaker, microphone and power supply circuit.
And the first speaker 15 connected to the transmitting / receiving circuit 11
The first microphone 13 is attached to the first housing at a first distance.
And the phone body 10 as the adapter 20
Storage section 21 for storing all of the first housings, and storage section 2
When the phone body 10 is housed in the 1, possess a terminal 22 which is connected to the telephone main body side terminal 19, a second speaker 24 connected to the terminal 22, the second microphone 23 and a power supply circuit 26 , The second speaker 24 and the second microphone 2
3 at a second interval longer than the first interval.
2 are arranged in a housing .

[0009]

In this manner, a telephone call can be made via a predetermined base station only with the telephone body 10 and the adapter 2 can be used.
When the telephone main body 10 is stored in the adapter 0, a telephone using the speaker 24, the microphone 23, and the power supply circuit 26 built in the adapter 20 is configured.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a portable telephone according to the present invention will be described below with reference to the accompanying drawings.

The telephone of the present embodiment is configured as a cordless telephone subunit, and can be used as a subunit of a telepoint system.

FIG. 1 is a structural view showing a portable telephone of this embodiment, and FIG. 2 is a perspective view showing an appearance of the telephone. This figure 1
In FIG. 2 and FIG. 2, reference numeral 10 denotes a portable telephone body, and the portable telephone 10 is configured as small as possible in consideration of carrying. That is, the transmission / reception circuit 11 is built in a small casing, and a base station (base station of a cordless telephone or a base station of a telepoint system) is connected via an antenna (not shown) connected to the transmission / reception circuit 11. And communication is performed. As the communication in this case, for example, a TDMA / TDD system in which communication is performed in a time-division manner is applied.

A microphone 13 is connected to the transmission / reception circuit 11 via a changeover switch 12, a speaker 15 is connected via a changeover switch 14, and a battery 17 is connected via a changeover switch 16. Connected. In this case, the microphone 13, the speaker 15, the battery 1
7 is connected to the first fixed contacts 12a, 14a, 16a of the changeover switches 12, 14, 16 respectively. In order to reduce the size of the telephone body 10, the microphone 13 and the speaker 15 are relatively small, and the
7 is small and has a small capacity.

Under the control of a relay 18 to be described later, the movable contacts of the changeover switches 12, 14, 16 are normally fixed to the first fixed contacts 12a, 14a, 14a in a normal state (a state in which an adapter 20 to be described later is not connected). The microphone 13, the speaker 15, and the battery 17 are connected to the transmission / reception circuit 11 so as to be connected to the 16 a side. Then, in such a connection state, the transmission / reception circuit 11 is operated by the power supplied from the battery 17, and a call using the microphone 13 and the speaker 15 is enabled. In this case, as shown in FIG. 2, a lower part 13 provided with a microphone 13 is provided in a housing constituting the telephone body 10.
a and an upper portion 15a on which the speaker 15 is disposed, a through hole is provided, and an operation key 10a is disposed in a central portion,
Information such as a telephone number by operating the operation key 10a is supplied to the transmission / reception circuit 11.

The telephone body 10 is provided with a terminal portion 19, and the terminal portion 19 is exposed on a side surface of the housing. Each terminal 19 has a switch 1
2, 14, 16 second fixed contacts 12b, 14b, 16
terminals 19a, 19b, and 19c connected to the b side, and a terminal 19 for obtaining a ground potential of a circuit in the telephone body 10.
d is provided.

A relay 18 is connected between the terminals 19c and 19d.
When a predetermined power supply voltage is obtained during the period d, this relay 18
Are designed to connect the movable contacts of the changeover switches 12, 14, 16 to the second fixed contacts 12b, 14b, 16b.

In this embodiment, the telephone body 1
A storage adapter 20 capable of storing 0 is prepared. As shown in FIG. 2, the storage adapter 20 has a shape suitable for a telephone call similar to a cordless telephone handset in appearance, and an operation key 20a is arranged at the center. In this case, the shape is such that it can be placed upright on a table or the like. And this storage adapter 20
Inside the microphone 23, the speaker 24 and the battery 26
And the microphone 23 is located at the lower part 2 of the storage adapter 20.
3a, and the speaker 24 is disposed on the upper portion 24a of the storage adapter 20. Since the microphone 23 and the speaker 24 have a relatively large storage space, relatively large microphones having good sensitivity are used. Further, the battery 26 having a larger capacity than the battery 17 in the telephone body 10 is used.

The microphone 23, the speaker 24, and the battery 26 are connected to the terminal 22. The terminal section 22 is provided in a storage section 21 described later,
22a, a terminal 22b connected to the speaker 24, and a terminal 2 connected to the battery 26.
2c and a terminal 22d connected to the ground side of each circuit component
It consists of However, a connection switch 25 is provided between the battery 26 and the terminal 22c. As shown in FIG. 2, the connection switch 25 is attached to the side of the storage adapter 20 and can be easily operated by a person who talks.

As shown in FIG. 2, a storage section 21 for storing the telephone body 10 is provided at a position on the back side of the operation keys 20a of the storage adapter 20. A lid 21a is provided on the surface of the adapter 20 on the side of the storage section 21. By opening the lid 21a, the telephone body 10 can be stored in the storage section 21. When the telephone body 10 is stored in the storage section 21, the terminals 19 a to 19 provided on the terminal section 19 of the telephone body 10 are provided.
d is each terminal 22a to 22 of the terminal portion 22 in the storage portion 21.
d.

When the telephone body 10 is stored in the storage section 21, the operation keys 20a of the storage adapter 20 are stored.
Are arranged so as to be directly above the operation keys 10a of the telephone body 10, and by pressing each key constituting the operation keys 20a, a corresponding key of the operation key 10a located directly below is pressed. It is.

Therefore, when the telephone body 10 is stored in the storage adapter 20 and the terminals of both terminal portions 19 and 22 are connected, the relay 18 is operated by the power from the battery 26 of the storage adapter 20. Each of the changeover switches 12, 14, 16 is connected to the second fixed contact 12b, 14
b, 16b, and the power is supplied from the battery 26 of the storage adapter 20 to the transmission / reception circuit 11 in the telephone body 10, and the transmission / reception circuit 1
1, the microphone 23 and the speaker 24 on the storage adapter 20 side are connected, and the microphone 13, the speaker 15, and the battery 17 in the telephone body 10 are disconnected from the transmission / reception circuit 11.

With such a configuration, this telephone becomes a portable telephone suitable for a small-sized telephone set of a telepoint system, and when it is stored in the storage adapter 20, it can be used indoors. A portable telephone suitable for the cordless telephone handset used. That is, as described above, since the small-sized telephone body 10 alone can be used as a portable telephone, when going out, if only the telephone body 10 is carried, a telephone call can be made near the base station of the telepoint system. And in the building where the cordless phone base unit is installed (or near this building)
Then, by storing the telephone body 10 in the storage adapter 20, it is possible to perform a long-time call or standby by the power supplied from the battery 26 having a relatively large capacity, and to use the power supply provided in the storage adapter 20. Using the large microphone 23 and the speaker 24, a call with high sensitivity can be made. Further, the storage adapter 20 can be placed in an upright state as shown in FIG. 2, and a hands-free call in which a call is made with the storage adapter 20 placed on a table or the like becomes possible. Also, when carrying out a telephone call with the telephone, since the storage adapter 20 is formed in a shape suitable for the telephone call, a good telephone call is possible.

In the above-described embodiment, the operation keys 20a on the storage adapter 20 side are mechanically connected to the operation keys 10a on the telephone body 10, but the operation keys 20a
The terminal itself is an electric switch similar to the operation key 10a, and the operation information of the operation key 20a is transmitted to the terminals 22, 19.
May be supplied to the transmission / reception circuit 11 side via the.

In the above-described embodiment, the cordless telephone handset and the telepoint system handset are combined, but the cordless telephone handset and another wireless telephone system telephone (cellular wireless telephone) And so on).

Further, the present invention is not limited to the above-described embodiment, but may take various other configurations.

[0026]

According to the present invention, a telephone call can be made via a predetermined base station using only the telephone body, and when the telephone body is housed in the adapter, the speaker, microphone and power supply circuit built in the adapter are used. A portable telephone having both good portability and good usability as a telephone can be obtained by reducing the size of the telephone body and making the adapter suitable for talking.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a perspective view showing the appearance of the portable telephone according to one embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Mobile phone main body 11 Transmission / reception circuit 12, 14, 16 Changeover switch 13, 23 Microphone 15, 24 Speaker 17, 26 Battery 18 Relay 19, 22 Terminal part 20 Storage adapter

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04B 1/38-1/58 H04B ⁷ /24-7/26 H04M 1 / 00,1 / 24 H04M 1 / 58-1/62 H04M 1/66-1/78 H04Q 7/06-7/38

Claims (1)

(57) [Claims] 1. A telephone body comprising a first housing,
The first housing is constituted by a second housing capable of being housed therein.
A portable telephone composed of the adapter, as the telephone main body, a transmitting and receiving circuit for performing a predetermined base station and the wireless communication, the first speaker and the first Ma connected to said transmission reception circuit <br / > Ik and, a power supply circuit connected to the transmission and reception circuit, possess an external speaker, and a connectable terminal and the microphone and the power supply circuit, the first speaker and the first Ma connected to the transceiver circuit
The microphone was placed at a first distance in the first housing, as the adapter, and a housing part for housing the first housing as the telephone main body, the above telephone body to the housing portion housing when a terminal to be connected to the telephone main body side terminal, a second speaker connected to the terminal, have a second microphone and a power supply circuit, the second speaker and the second microphone , The first interval
At a second interval longer than
Portable phone was.