JPH04132752U - cordless phone - Google Patents

Abstract

(57) [Summary] [Purpose] To enable a cordless telephone to be used as a transceiver. [Structure] A cordless telephone 1 comprising a plurality of handsets 2 and a transmission/reception control device 3 includes a telephone circuit 2c for using the handsets 2 as a telephone, a transceiver circuit 2d for using the handsets 2 as a transceiver,
The circuit switch 2e is configured to switch the circuit to either the telephone circuit 2c or the transceiver circuit 2d. With such a configuration, the switching circuit 2
When the switching circuit 2e is switched to the telephone circuit 2c side, the cordless telephone 1 can be used as a telephone, and when the switching circuit 2e is switched to the transceiver circuit 2d side, the cordless telephone 1 can be used as a transceiver.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a cordless telephone with transceiver function.

0002

[Conventional technology]

So-called cordless telephones that have a wireless connection between the telephone body and the handset are known. .

0003

[Problem that the idea aims to solve]

However, with conventional cordless telephones, it is not possible to communicate between the handset and the receiver. It was. Therefore, in order to make contact, a separate wireless communication device (hereinafter referred to as a transceiver) is required. . ) had to be prepared. Therefore, the purpose of this invention is to use it as a transceiver. The aim is to provide cordless telephones that can

0004

[Means to solve the problem]

In order to solve the above-mentioned problem, the present invention provides a cordless telephone with multiple handsets and receivers. a telephone circuit, a transceiver circuit for wireless communication between the handset and the handset, and a telephone circuit or is equipped with a circuit switcher for switching the circuit on either one of the transceiver circuits. It is characterized by.

[0005]

[Effect]

A circuit switcher can be used to switch the circuit to either the telephone circuit or the transceiver circuit. Therefore, a cordless telephone can be used as a telephone or transceiver. Ru.

[0006]

【Example】

The cordless telephone according to the present invention will be explained below with reference to the attached drawings. Ru. Figure 1 is a configuration diagram of an example of a cordless telephone according to the present invention, and Figure 2 is an external view of the same. 3 is a flowchart showing the same operation.

[0007] In FIG. 1, a cordless telephone 1 includes a plurality of handsets 2 and a transmitting/receiving control device 3. This is a so-called weak-type cordless telephone with an answering machine function. still, Since the plurality of handsets 2 have substantially the same configuration, only one is illustrated and the others are omitted. . Further, the handset 2 transmits or receives signals in the 27 MHz band with the antenna 2a. a transmitting/receiving circuit 2b, a telephone circuit 2c, a transceiver circuit 2d, and the telephone circuit An interlocking switch K1 that switches the circuit to either the transceiver circuit 2c or the transceiver circuit 2d. , K2, and amplifies the output signal of the telephone circuit 2c. An amplifier 2f, a speaker 2g for reproducing the audio signal, and the telephone circuit 2 for transmitting the audio signal. c and a microphone 2h input to the transceiver circuit 2d. Said delivery The reception control device 3 connects the antenna 3a, the telephone circuit 2c of the handset 2, and the It is composed of a transmitting/receiving/answering machine control circuit 3b that controls the telephone number function. Furthermore, The transmitting/receiving/answering machine control circuit 3b is connected to the telephone line L1. A configuration like this Accordingly, the plurality of handsets 2 communicate with the telephone via the transmitting/receiving/answering machine control circuit 3b. It is connected wirelessly to the talk line L1. Further, the transmitting/receiving/answering machine control circuit 3b and the controller The transceiver circuit 2d is connected by a detachable answering machine signal line L2.

[0008] FIG. 2 is an external view of an example of this cordless telephone 1, and in this embodiment, the handset and receiver are 2 consists of two units, a base unit 21 and a slave unit 22, and in a standby state, the transmitting/receiving control device It is placed on a stand 3d provided at 3. Moreover, the master unit 21 and slave unit 22 are approximately L-shaped. They are formed into two layers, stacked together upside down, and in the stacked state. It has a roughly box shape. Furthermore, the base unit 21 and the transmitting/receiving control device 3 are arranged in a wire-wound shape. Connected by the formed answering machine signal line (hereinafter referred to as curl cord) L2 There is. Note that three or more handsets 2 may be provided, and the shape is limited to the above-mentioned approximately L-shape. Needless to say, there is no such thing.

[0009] Next, the operation will be explained. Incidentally, as an initial state, the telephone circuit 2c is connected to the telephone circuit 2c. It is assumed that the path switch 2e is set. To explain with reference to FIG. 1, the circuit switch 2e Set the interlocking switches K1 and K2 to the upper side. That is, the output signal line of the telephone circuit 2c The switch K is connected so that L10 and the input signal line L11 of the amplifier 2f are connected. 1 and the output signal line L12 of the transceiver circuit 2d and the speaker The switch K2 is opened so that the input signal line L13 of the motor 2g is disconnected.

0010 In FIG. 3, the cordless telephone 1 is first used as a telephone in S1. If so, proceed to S2, and further carry the base unit 21 and slave unit 22 (the transmitting/receiving control device The base unit 21 and slave unit 22 are used separately from the station 3. ), proceed to S3 and move forward. Remove the curl cord L2 from the sending/receiving control device 3 and the base unit 21. this curl By removing the code L2, the contents of the other party's conversation recorded during the absence can be transferred to the above-mentioned sending/receiving system. You will no longer be able to listen to it via the control device 3, but proceed to S4 and the answering machine screen (not shown) will be displayed. If the switch is turned on, when a message from the other party is received, this message is sent to the transmitting/receiving control device. It is not permitted to record on audio tape etc. using the recording device (not shown) installed in Facility 3. (standby for answering machine). Then, proceed to S5 and become ready to talk (call standby). by). If the base unit 21 and slave unit 22 are not to be carried in S2, proceed to S6; The slave unit 22 is separated from the base unit 21, and only the base unit 21 is placed on the stand 3d. do. In this state, the process advances to S7 and becomes standby for calls.

[0011] In step S1, if you do not want to use it as a telephone, proceed to step S10 and connect the curl cord. Remove the cable L2, further separate the base unit 21 and slave unit 22, and proceed to S11 to start the answering machine. Become tanbai. Next, the process proceeds to S12, where the link provided on the base unit 21 or slave unit 22 is Switch the dynamic switches K1 and K2 to the lower side, that is, to the transceiver side, and proceed to S13. Can be used as a transceiver (transceiver standby).

0012 In the conventional weak type, the 46MHz band or 49MHz band is not particularly regulated by law. Obi etc. are used. However, the permissible transmission output for the weak type is small, so It was not practical for use as a receiver. So the so-called citizen band 27 It may be possible to provide a separate MHz band for transceivers, but cordless power Providing two oscillator circuits in the handset reduces the size of the handset and costs. I don't like it either. Therefore, in this embodiment, 27MHz is used for the telephone and transceiver. The transmitter/receiver circuit 2b is provided in the handset 2 for transmitting and receiving data using a common frequency band oscillator. . By adopting such a configuration, although legal procedures are required, the above-mentioned weak type code It is possible to supply more power for the transceiver than the transmit power allowed for the wireless telephone. Wear. On the other hand, as a phone, the output is too high as it is and falls outside the weak type standard. Therefore, a commonly used transmitting output switching circuit (not shown) is installed in the transmitting/receiving circuit 2b. When using it as a transceiver, increase the output, and when using it as a telephone, increase the output. It is better to try to reduce the force.

[0013] In this example, the case of a weak cordless telephone was explained, but of course, It is not limited to a weak type, but can also be used for a low power type.

[0014]

[Effect of the idea]

The handset has two circuits, a telephone circuit and a transceiver circuit, and the front Since the two circuits described above are switched, the cordless telephone can be connected to the telephone and the transceiver. It can be used for both servers.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an example of a cordless telephone according to the present invention.

FIG. 2 is an external view of the same.

FIG. 3 is a flowchart showing the same operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1... Cordless telephone, 2... Handset, 2c... Telephone circuit, 2d... Transceiver circuit, 2e... Circuit switch, 3...
Transmission/reception control device, 3b... Transmission/reception/answering machine control circuit, K
1, K2...Interlocking switch.

Claims (1)

[Scope of utility model registration request] 1. A cordless telephone comprising a transmitting/receiving control device wired to a telephone line, and a plurality of handsets controlled by the transmitting/receiving control device and wirelessly connected to the transmitting/receiving control device, wherein the plurality of handsets are connected wirelessly to the transmitting and receiving control device. The handset is cordless, characterized in that it includes a telephone circuit, a transceiver circuit for wireless communication between the plurality of handsets, and a circuit switcher for switching the circuit to either the telephone circuit or the transceiver circuit. telephone.