JPH03187532A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To prevent an incoming call and an originating call from being a loss call by executing an incoming call connecting operation preferentially to an originating call connecting operation when the originating call and incoming call are almost simultaneously generated. CONSTITUTION:At the time of the incoming call, a connector 50 detects the 'presence of an electric field' in a control channel by a detecting circuit 53 and when receiving the originating call signal with the coincident call name from a cordless telephone set 60, the incoming call signal is sent out to the cordless telephone set 60 preferentially to an originating call response signal sending operation. At the time of the originating call, the cordless telephone set 60 detects the 'presence of the electric field' in the control channel by a detecting circuit 63 until receiving the originating call response signal from the connector 50 and when receiving the incoming call signal with the coincident call name from the connector 50, the incoming call response signal is sent out preferentially to the originating call connecting operation. Thus, when the originating call and the incoming call with the same call name are simultaneously generated, neither originating call connection nor incoming call connection is executed and the incoming call and the originating call are prevented from being the loss call.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to cordless telephone equipment.

[Prior Art] A conventional cordless telephone device will be described with reference to the drawings.

FIGS. 3(a) and 3(b) are flowcharts each showing an example of the operating procedure of a conventional cordless telephone device.

In FIG. 3(a), when the connection device of the conventional cordless telephone device detects that the received electric field detection circuit of the connection device detects "no electric field" in the control channel at the time of an incoming call (step 31)
After sending the incoming call signal (step 32) and receiving the incoming call response signal (step 34), the process moves to the next incoming call connection operation.Furthermore, the receiving electric field detection circuit of the connecting device detects the
If an electric field is detected (step 31) or if an incoming call response signal is not received after sending an incoming call signal (step 34), the bell of the connecting device is turned off without proceeding to incoming call connection operation. Make it ring (Step 33).

In FIG. 3(b), when the cordless telephone of the conventional cordless telephone device makes a call, after off-hook (step 4)
0), if the received electric field detection circuit of the cordless telephone detects "no electric field" on the control channel (step 41),
Sending a calling signal (Step 43), and receiving a calling response signal returned from the connection device (Step 44)
, the process moves to the subsequent call connection operation. However, if the call response signal cannot be received (step 44), a busy tone (hereinafter referred to as BT) is sent and the process does not proceed to the call connection operation (step 42).

[Problem to be solved by the invention]

In the above-described conventional cordless telephone device, when the received electric field detection circuit of the connecting device detects "the presence of an electric field" in the control channel at the time of reading, or when the incoming call response signal is not received after the incoming call signal is sent out. In this case, the bell of the connecting device is rung without proceeding to the subsequent incoming call connection operation, and when the received electric field detection circuit of the cordless telephone detects "electric field present" on the control channel after going off-hook when making a call, or If a call response signal is not received after sending a call signal,
Since the configuration is such that the BT is sent without proceeding to the subsequent call connection operation, if a call with the same call name and an incoming call occur at the same time, both the outgoing and incoming call connections will be performed. This has the disadvantage that both incoming and outgoing calls are lost.

[Means to solve the problem]

The cordless telephone device of the present invention includes a connection device and a cordless telephone, and when the electric field received by the connection device and the cordless telephone is higher than a predetermined reference level, “electric field present” is determined, and when it is smaller than the reference level, “electric field present” is determined.
The first and second received electric field detection circuits each have first and second received electric field detection circuits that can determine whether there is no electric field.
The received electric field detection circuit detects the received electric field of the control channel before starting transmission, and starts transmission after confirming "no electric field", and only when the calling names of the cordless telephone and the connecting device are the same. In a cordless telephone device that performs wireless connection, the connection device is configured such that when a call arrives, the first received electric field detection circuit detects "electric field present J" on the control channel and detects a calling signal with a matching calling name from the cordless telephone. It has an incoming call signal priority sending means that gives priority to sending an incoming call signal to the cordless telephone over the operation according to the call response signal exit procedure when there is a call, and the cordless telephone is configured to send an incoming call signal after being off-hook at the time of making a call. During the procedure from to receiving a call response signal from the connecting device, the second
If the received electric field detection circuit detects "electric field present" on the control channel and an incoming call signal with a matching calling name is received from the connecting device, the incoming call response signal and a first signal generating unit that generates the incoming call signal and the outgoing call response signal, and the cordless telephone. a first receiving unit that receives a calling signal with a matching calling name and the incoming call response signal from the control channel;
When the first receiving section receives a calling signal with the same calling name, the first receiving section transmits the incoming call signal from the first signal generating section via a first transmitting section. The incoming call response signal priority sending means further includes a second signal generating section that generates the calling signal and the incoming call response signal, and a matching name of the call from the connecting device. a second receiving the incoming call signal and the call response signal;
and the second receiving electric field circuit detects "the presence of an electric field" of the control channel during the procedure from when the cordless telephone goes off-hook to receiving the call response signal of the receiving section when making a call. and a second control unit that causes the second signal generating unit to send the incoming call response signal via a second transmitting unit when the second receiving unit receives an incoming call signal with the matching calling name. It has

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 (
Figures a) and (b) are flowcharts illustrating an example of the operating procedure of the connection device and cordless telephone in this embodiment, respectively.

In FIG. 1, the cordless telephone device of this embodiment includes a connecting device 50 that connects to a telephone line 70, and a cordless telephone 60 that wirelessly connects to the connecting device 50. The connecting device 50 is a hybrid circuit that interfaces with the telephone line 70. (hereinafter referred to as H) 54 and a transmitting unit (hereinafter referred to as TX
) 51, a receiving unit (hereinafter referred to as RX) 52 that receives a wireless signal from a cordless telephone 60 and converts it into a wired signal, and a received electric field included in RX 52 with respect to a preset reference level. A received electric field detection circuit (hereinafter referred to as detection circuit) 53 that detects the magnitude of the level, and an incoming signal 1
A signal generation unit (hereinafter referred to as SG) 56 that generates a call response signal etc., and a control unit (hereinafter referred to as C) that controls the entire connection device 50.
0NT) 55, the cordless telephone 60 has a handset section 64 that controls the input and output of audio signals, a hook switch (hereinafter referred to as hook SW) 66 that operates by on-hook/off-hook of the handset section 64, T that converts the voice signal from the handset unit 64 and internally generated control signals (calling signal 1 incoming call response signal, etc.) into a wireless signal and transmitting it.
X61, an RX62 that receives a wireless signal from the connection device 50 and converts it into a wired signal, and a detection circuit 63 included in the RX62 that detects the magnitude of the received electric field level with respect to a preset reference level. It is configured to include a 5G67 that generates a calling signal 2, an incoming call response signal, etc., and a C0NT65 that controls the entire cordless telephone 60.

Each of the detection circuits 53 and 63 has a preset reference level, and when the received electric field is larger than the reference level, it can be determined that there is an electric field, and when it is smaller than the reference level, it can be determined that there is no electric field. .

Next, the operation of this embodiment will be explained in Fig. 1 and Fig. (a).
, (b).

First, the operation when a call arrives will be explained.

When the connecting device 50 detects an incoming signal from the telephone line 70, and when the detection circuit 53 detects "no electric field" on the control channel (step 11), the connecting device 50 detects the incoming signal from the telephone line 70.
5 sends an incoming call signal from the 5G 56 to the cordless telephone 60 via TM01 (step 13). When the f&RX 52 receives an incoming call response signal from the cordless telephone 60 (
In step 15), the process moves to the subsequent incoming call connection operation.

However, if the detection circuit 63 detects "the presence of an electric field" on the control channel (step 11), even if it is the reception of a calling signal with a matching calling name (step 12), the C0NT 55 detects the Ignoring the signal, the incoming call signal from 5G56 is sent to the cordless phone 60 via TM01.
(Step 13), and if the RX 52 receives the incoming call response signal (Step 15), the process moves to the subsequent incoming call connection operation.

Next, the operation when making a call will be explained.

The cordless telephone 60 has a hook 5W6 with C0NT65.
6, the detection circuit 63 detects the off-hook of the control channel “
Step 21) to detect the presence of an electric field, and RX62
If it is a reception of an incoming call signal with a matching calling name (step 22), the C0NT65 stops the call connection operation and sends an incoming call response signal to the incoming call from the 5G67 to the TM.
01 to the connection bag 250 (step 28),
The process moves on to the next incoming call connection operation.

In addition, in C0NT65, the detection circuit 63 detects "no electric field" on the control channel after detecting off-hook of hook 5W66 (
Step 21), and send a calling signal from the 5G67 to the connection device 50 via TM01.Step 23), send a call response signal from the connection device 50 to the calling signal to R.
When an incoming call signal with a matching calling name is received (step 25) when the call signal is not received by X62 (step 24)
Then, the C0NT65 stops sending out the calling signal from the 5G67 (step 27), sends out the incoming call response signal from the 5G67 via the TM01 (step 28), and moves on to the subsequent incoming call connection operation.

〔Effect of the invention〕

As explained above, the present invention provides an incoming call signal priority sending means for a connection device to perform an incoming call connection operation with priority over an outgoing call connection operation when a call origination and an incoming call occur almost simultaneously. By providing the cordless telephone with an incoming call response signal priority sending means, there is an effect that it is possible to avoid both incoming and outgoing calls becoming lost calls as in the conventional case.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 (
a) and (b) are flowcharts showing an example of the operating procedure of the connecting device and cordless telephone in this embodiment, respectively;
FIGS. 3(a) and 3(b) are flowcharts showing an example of the operating procedure of a connecting device in a conventional cordless telephone device and a cordless telephone, respectively. 50... Connection device, 51... Transmission section (TX), 52
. . . Receiving section (RX), 53 . . . Reception electric field detection circuit (
detection circuit), 54... hybrid circuit (H), 55
...Control section (CONT), 56...Signal generation section (S
G), 60... Cordless telephone, 61... Transmitting section (TX), 62... Receiving section (RX), 63... Received electric field detection circuit (detection circuit), 64... Handset/receiver section ,6
5...Control unit (CONT) 66...Hook switch (hook SW>) 7...Signal generator (SG)

Claims (1)

[Claims] 1. Consisting of a connecting device and a cordless telephone, when the electric field received by the connecting device and the cordless telephone is greater than a predetermined reference level, "there is an electric field", and when it is smaller than the reference level, "there is an electric field". The first and second received electric field detection circuits each have a first and second received electric field detection circuit that can determine whether there is no electric field, and the first and second received electric field detection circuits detect the received electric field of the control channel before starting transmission. In the cordless telephone device, transmission is started after confirming that there is no electric field, and furthermore, the cordless telephone device performs a wireless connection only when the calling names of the cordless telephone and the connecting device are the same, and the connecting device If the received electric field detection circuit detects "electric field present" in the control channel and a calling signal with a matching calling name is received from the cordless telephone, the cordless telephone is activated by the calling response signal sending procedure. The cordless telephone has an incoming call signal priority sending means that gives priority to sending out an incoming call signal to If the second received electric field detection circuit detects "electric field present" on the control channel and an incoming call signal with a matching calling name is received from the connection device, the incoming call is A cordless telephone device characterized by having an incoming call response signal priority sending means for sending a response signal with priority. 2. The incoming call signal priority sending means includes a first signal generating section that generates the incoming call signal and the call response signal, and a call signal with a matching calling name from the cordless telephone and the incoming call response signal. When the first receiving unit that receives the signal and the first received electric field detection circuit detect “electric field present” of the control channel and the first receiving unit receives a calling signal with the matching calling name, the first receiving electric field detecting circuit 2. The cordless telephone device according to claim 1, further comprising a first control section configured to transmit the incoming call signal from the first signal generation section via a first transmission section. 3. The incoming call response signal priority sending means includes a second signal generating section that generates the outgoing call signal and incoming call response signal, and an incoming call signal with a matching calling name from the connection device and the outgoing call response. A second reception section receives the signal, and the second reception electric field circuit is connected to a control channel during the procedure from when the cordless telephone goes off-hook to when the cordless telephone receives the call response signal of the reception section. When "electric field present" is detected and the second receiving section receives an incoming call signal with the matching calling name, the second signal generating section sends out the incoming call response signal via the second transmitting section. 2. The cordless telephone device according to claim 1, further comprising a second control section for controlling the cordless telephone device.