JPH0378348A - Incoming call information device for cordless telephone - Google Patents

Abstract

PURPOSE:To emit a ringing tone and informing an incoming call at a place except for the installation place of a mainbody part by providing a reception circuit detecting an incoming radio wave signal from a cordless telephone mainbody part and a ringing tone circuit generating the ringing tone at the time of detecting the incoming radio wave signal and forming them apart from a cordless telephone portable part. CONSTITUTION:The incoming call information device consists of the reception circuit 29 detecting the incoming radio wave signal from the cordless telephone mainbody part and the ringing tone circuit 31 generating the ringing tone at the time of detecting the signal, and they are formed apart from the cordless telephone portable part. Namely, the ringing tone circuit 31 is driven by the reception of the incoming radio wave signal by the reception circuit 29 and the ringing tone is generated. Thus, the incoming call is informed in the place except for the installation place of the telephone mainbody portable part and the incoming call information device is formed apart from the portable part. Thus, the circuit scale of the portable part can be suppressed to be small.

Description

[Detailed Description of the Invention] [Field of Application of M Tojo] The present invention relates to a cordless telephone equipped with a mobile part that communicates wirelessly with a main body part connected to a telephone line. This invention relates to an incoming call notification device that notifies all incoming calls from a line.

[Conventional technology]

Figures S and 4 are for example electronics IE 1.
88! , rpec, (44) PI3~? 11 (
FIG. 9 is a circuit configuration diagram and a control sequence diagram of a conventional cordless telephone device. Figure 3)
This is the circuit configuration of the main body of the Fi-Co-less phone.

(1) is the office line interface section of the telephone line, (2) is the control section, ■ is the transmitting section, (41 is the high frequency section 9C5 common to transmitting and receiving)
) is the antenna, (61 is the receiving section, +71#fi the above transmitting section (31 and the receiving section (synthesizer section that sets the frequency of υ, (8) is the transmitting/receiving audio section. tC, Fig. 3 (b)
is the circuit configuration of the portable part of the cordless phone, and (9) is the antenna.

asFi transmission/reception sharing high frequency section, in is the receiving section, a
S is the control section, U is the transmitter section, a4 is the synthesizer section, aS
is a transmitting/receiving audio section, a is a transmitter, and a is a receiver.

Next, the operation of the cordless telephone having such a configuration when responding to an incoming call will be explained based on the nine incoming call sequence shown in FIG. First, when a calling signal U from the telephone port 41 (exchange) is input to the 9-station line interface section (1) in the main body section, the control section (transmission section (3I), high frequency section for transmission and reception (4)).

The incoming call signal (2) is wirelessly transmitted to the mobile unit via the antenna +51i. In the mobile part, there is an antenna (9).

The control unit 12 receives the incoming call signal from the main unit via the transmitting/receiving high frequency unit aS and the receiving unit I, decodes the designated channel therein, and changes the frequency of the synthesizer unit α to the frequency of the designated channel. At the same time, the transmitting section α also wirelessly transmits an incoming call response signal "ON" and a channel switching completion signal port to the main body section via the transmitting/receiving high frequency section αG and the antenna (9). In response to this channel switching completion signal, the main body switches the frequency of the synthesizer section (n) to the specified channel, and further sends out a bell ringing signal when the calling signal α9 is input.

The mobile unit receives this ringing signal.
．． A ring tone is sounded by the receiver aη.

When an off-hook signal @ is sent to the main unit by operating the operating unit (Is) of the mobile unit, the main unit controls the office line interface unit (!) to close the line loop, and at the same time sends the audio circuit to the mobile unit. The ON signal ca is transmitted.The mobile unit operates the transmitting/receiving audio unit asyk to perform a communication using the transmitter aS and the receiver fin via the two main units.

[Problem to be solved by the invention]

Since the conventional cordless telephone device is constructed as described above, the circuit scale of the portable part is large, making it inconvenient to carry it around all the time. Furthermore, when the mobile unit is installed near the main unit, there is a problem that the ringing tone is difficult to hear in a room separate from the main unit or outdoors.

This invention was made in order to solve the above-mentioned problems, and it is possible to notify an incoming call to a location other than the location where the main body or the mobile device is located, without increasing the circuit scale of the mobile device. The purpose of the present invention is to obtain an incoming call notification device for a cordless telephone.

[True means to solve problems]

The incoming call notification device for a cordless telephone according to the present invention includes a receiving circuit that detects an incoming call radio signal from the main body of the cordless telephone, a ringing circuit that generates a ringing tone upon detection, and a portable section of the cordless telephone. It is formed separately.

[Effect]

In this invention, the ringing circuit is driven by the reception of the incoming call radio wave signal by the receiving circuit and a ringing tone is generated, so that the incoming call is announced at a location other than the telephone body or the mobile unit. Since it is formed separately from the portable section, the circuit scale of the portable section can be kept small.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a circuit diagram of an incoming call notification device for a cordless telephone according to the present invention, and (9) is an antenna.

(to) is the high frequency circuit section, @ is the receiving section, (to) is the control section,
3!1 is the synthesizer section, (to) is the excitation section and the sounding body (
This sounding body (to) and the oscillation section (to) constitute a ringing tone circuit. 1+ This incoming call notification device is formed separately from the portable part of the cordless telephone. FIG. 2 is a control flowchart of the control section ω, which is executed according to a program stored in advance in the control section .

First, in the step (to), the control unit (to) receives the incoming radio signal via the antenna (9), the high-frequency circuit part (to), and the receiving part (branch), and then the cordless phone is called at step (to). When an incoming call radio signal (to) is detected from the main unit,
In step (to), the synthesizer section (311) is controlled to switch to the specified channel frequency, and in step (sub), the bell ringing signal opening is detected.At this time, when the bell ringing signal is detected, the oscillation part is controlled in step (to). (to) is driven to emit a loud tone, that is, a ringing tone, from the sounding body (to) to notify the incoming call.

Here, time is counted at step K.

Then, when the mobile unit responds to the call and issues an off-hook signal @, the main unit issues an audio circuit ON signal.
If this audio circuit ON signal (to) is detected in step -, the operation of the oscillation section (to) is stopped in step -, and the ringing tone is stopped. 1+, if there is no response even after continuing to notify the incoming call, the time elapse determination is performed in step (to) and step ttn (return), and if there is no response even after a predetermined time has elapsed, the step ), the notification of the incoming call is stopped, and the process returns to the reception monitoring step (to), which makes it possible to detect the first incoming call signal.

Since this incoming call notification device is formed separately from the portable section of the telephone, it is easy to carry the portable section without increasing the circuit scale of the portable section. Manen small form.

It can be produced at a low cost, and by installing this incoming call notification device in each room or carrying it around, incoming calls can be detected even in locations other than where the telephone main unit is installed.

In the above embodiment, the case where the nine oscillators (to) are driven by detecting the bell ringing signal (2) is shown, but the same effect can be achieved even if the two incoming call signals (2) are detected and driven.

〔Effect of the invention〕

As described above, according to the present invention, the cordless telephone has a receiving circuit that detects an incoming call radio wave signal from the main body of the cordless telephone, and a discharge sound circuit that generates a ringing tone when the first incoming call radio wave signal is detected. Since it is configured to be formed separately, it can be made small and inexpensive.

There is an effect that the mobile unit does not need to be enlarged, and the ring tone can be emitted at a location other than the location where the main unit is installed to notify the incoming call.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of an incoming call notification device for a cordless telephone according to an embodiment of the present invention, FIG. 2 is a control flowchart of this device, and FIG. 3(a) is a circuit diagram of the main body of a conventional cordless telephone. , FIG. 3(b) is a circuit diagram of the portable unit, and FIG. 4 is an incoming call sequence diagram showing a signal when a conventional cordless telephone responds to an incoming call. In the figure, C9) is an antenna, and C111 is a high frequency circuit section. ■ is the receiving section, ■ is the control section, and G is the synthesizer section. (to) is the pronunciation part, and (to) is the pronunciation body. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] In a cordless telephone system consisting of a telephone main unit connected to a wired communication line and a mobile unit connected to this main unit via a wireless line to make a call, the main unit transmits a signal when an incoming call signal is received from the wired communication line. a receiving circuit that detects an incoming call radio signal, and a ringing circuit that emits a ringing tone when the receiving circuit detects an incoming call radio signal, and is formed separately from the mobile unit. Telephone incoming notification device.