JPH0370243A - Radiotelephony system - Google Patents

Abstract

PURPOSE:To monitor sound around a master set and a radiotelephony set by interrupting either a voice signal sent from the master set to the radiotelephony set or a voice signal sent from the radiotelephony set to the master set. CONSTITUTION:Either of voice signals sent between the master set 1 and the radiotelephony set 2 is interrupted while the master set 1 and the radiotelephony set 2 are in talking by turning off either a voice switch 31 of the master set 1 or a voice switch 33 of the radiotelephony set 2. Thus, the radiotelephony set 2 monitors the voice around the master set 1 without being listened to as the voice around the radiotelephony set 2 at the master set 1 or the master set 1 monitors the voice around the radiotelephony set 2 without being listened to as to the voice around the master set 1 by the radiotelephony set 2.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a wireless telephone comprising a master device connected to a wired line and a wireless telephone connected to the master device via a wireless line. Relating to telephone devices.

(Prior Art) Conventionally, this type of radio telephone device has been constructed as shown in FIG. In the figure, a parent device 1 is connected to a wireless telephone 2 via a wireless line, and a wired telephone line 3.
connected to.

In the parent device 1, the voice signal from the wired telephone line 3 becomes the modulation input of the transmitter 8 via the closed line relay 4 and the hybrid circuit 5, and the radio waves modulated by the transmitter 8 are transmitted from the transmitting antenna 9. Transmit to wireless telephone 2. Furthermore, the radio waves arriving from the wireless telephone 2 are transmitted to the receiving antenna 12.
This received input is demodulated by the receiver 11.

The demodulated voice signal is sent to the wired telephone line 3 via the hybrid circuit 5 and the closed line relay 4. Transmission synthesizer 7 and reception synthesizer 1
0 outputs signals of frequencies corresponding to the control channel and any one of the plurality of communication channels to the transmitter 8 and receiver 11, respectively. The transmitter 8 and the receiver 11 each perform transmission and reception operations on channels corresponding to the frequency of the signal input from the synthesizer.

Further, the output of the receiver 11 is applied to the control circuit 6 as a data signal included in the received demodulated wave. The control circuit 6 determines various data contained in this data signal, and collates a predetermined identification code based on the combination of the parent device 1 and the wireless telephone 2, for example. Further, the control circuit 6 switches the wireless channel by controlling each synthesizer 7.10, and sends a transmission data signal to the transmitter 8 as a modulation input. 16Hz detector 15
is the 16Hz transmitted from wired telephone line 3 when a call arrives.
Detects the calling signal of , and notifies the control circuit 6 of this fact.

The speaker 13 produces a ring tone when a call arrives, and produces a received voice when a call is made.

The transmitter 14 is used to input transmitted voice during a call. The extension switch 16 is operated to issue a request to the control circuit 6 for an extension call between the parent device 1 and the wireless telephone 2.

On the other hand, in the wireless telephone 2, the receiving antenna 17 and the receiver 18
A receiving antenna 17 receives radio waves from the parent device 1, demodulates the received input in a receiver 18, and outputs the demodulated output, that is, an audio signal, to a receiver 28. Further, the audio signal sent from the transmitter 26 becomes a modulation input to the transmitter 22 and is transmitted from the transmitting antenna 21. 1 receive synthesizer, 23 transmit synthesizers
, the control circuit 20 is equivalent to the parent device 1, and the control circuit 20 controls the radio telephone 2. The dial unit 24 is operated to input dial data and the like to the control circuit 20. Hook switch 25 is operated to switch between an off-hook state and an on-hook state. The speaker 27 is a sounder that generates a ringing tone when a call arrives.

In such a configuration, when a call is made using the wireless telephone 2 with the other party through the wired telephone line 3, the audio signal from the wired telephone line 3 is sent to the line relay 4 of the main device 1 - the hybrid circuit 5 - the transmitter 8 - The audio signal is transmitted along the route of transmitting antenna 9 - receiving antenna 17 of radio telephone 2 - receiver 18 -> handset 28, and the audio signal sent from transmitter 26 of radio telephone 2 is transmitted from transmitter 22 -> transmitting antenna 21.
It is transmitted along the following route: - receiving antenna 12 of parent device 1 -> receiver 11 - hybrid circuit 5 -> line relay 4 -> wired telephone line 3. On the other hand, when an extension call is made between the parent device 1 and the wireless telephone 2, the audio signal sent from the transmitter 14 of the parent device 1 is transmitted from the transmitter 8 to the transmitting antenna 9 to the receiving antenna 17 of the wireless telephone 2 to the receiver. The audio signal transmitted from the transmitter 26 of the wireless telephone 2 is transmitted along the route 18-receiver 28, and the audio signal sent from the transmitter 26 of the wireless telephone 2 is transmitted through the route: transmitter 22-transmitting antenna 21→receiving antenna 12 of parent device 1→receiver 11-receiver 13. Transmitted by .

Next, call the wireless telephone 2 from the parent device 1, and call the wireless telephone 2 from the parent device 1.
The operation procedure up to the start of an extension call between the wireless telephone 2 and the wireless telephone 2 will be described below.

First, in the standby state, the parent device 1 receives a call signal from the wireless telephone 2 (call request), a call signal from the wired telephone line 3 (call request), and the extension switch 16 is pressed ( internal call requests).

In such a standby state, when the extension switch 16 is pressed, the control circuit 6 responds to this by setting the signal output from the transmitting synthesizer 7 to a frequency corresponding to the control channel. 8 is operated on the control channel and transmits an incoming call signal in addition to the transmitter 8. Note that this incoming call signal includes a communication channel designation signal indicating the communication channel.

In the radio telephone 2, the receiver 18 is operated on a control channel, and the receiver 18 receives the incoming call signal and applies it to the control circuit 20. When the control circuit 2o receives this incoming call signal, it operates the transmitter 22 on the control channel to transmit an incoming call response signal, and then transmits the received call response signal to the communication channel indicated by the communication channel designation signal included in the incoming call signal. Machine 18
and setting the transmitter 22.

In the parent device 1, the receiver 11 receives the incoming call response signal and adds it to the control circuit 6. When the control circuit 6 receives the incoming call response signal, it sends the previous incoming call signal to the wireless telephone 2. The receiver 11 and the transmitter 8 are set to the designated communication channel, and then a channel switching completion signal from the wireless telephone 2 is waited for.

At this time, in the wireless telephone 2, the control circuit 2o determines whether or not the communication channel is vacant based on the reception output of the receiver 18 set to the communication channel, and if the communication channel is vacant, The control circuit 20 also transmits a channel switching completion signal to the transmitter 22.

In the parent device 1, the receiver 11 receives the channel switching completion signal and applies it to the control circuit 6. When the control circuit 6 receives the channel switching completion signal, it adds a bell ringing signal to the transmitter 8 and transmits it.

In the wireless telephone 2, the receiver 18 receives the bell ringing signal and sends it to the control circuit 20. When the control circuit 20 receives the bell ringing signal, it rings the speaker 27 to produce a ringing tone. In response to this, when the hook switch 25 is turned on and off-hook is performed, the control circuit 20 adds an off-hook signal to the transmitter 22 and transmits it.

In the parent device 1, the receiver 11 receives the off-hook signal and applies it to the control circuit 6. When the control circuit 6 receives the off-hook signal, it adds an audio circuit on signal to the transmitter 8 and transmits it.

In the radio telephone 2, the receiver 18 receives the audio circuit on signal and applies it to the control circuit 20. When the audio circuit on signal is input, the control circuit 20 turns on the audio circuit and controls the receiver 28 and the transmitter 26. Enable human output of voice.

Thereby, an extension call between the parent device 1 and the wireless telephone 2 becomes possible.

By the way, in the wireless telephone device described above, for example, it is possible to place the wireless telephone in a child's room and monitor the situation in the child's room from the parent device, or to monitor sounds around the parent device and the wireless telephone from a telephone outside the home. There are many possible ways to use it.

(Problem to be Solved by the Invention) However, in conventional wireless telephone devices, when a parent device and a wireless telephone are in a conversation state on a communication channel, voice signals are always sent and received in both directions between the two. For example, you can unilaterally send and receive audio signals from the parent device to the wireless telephone and the wireless phone monitors the sounds surrounding the parent device, or you can unilaterally send and receive audio signals from the wireless phone to the parent device to monitor the sounds surrounding the parent device. It was not possible to monitor the sounds around the wireless telephone on the equipment side.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a wireless telephone device capable of monitoring sounds around a parent device and a wireless telephone.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides a wireless telephone device comprising a parent device connected to a wired line and a wireless telephone connected to the parent device via a wireless line. The present invention is characterized in that it includes a switch means for cutting off either one of the voice signal transmitted to the telephone and the voice signal transmitted from the wireless telephone to the parent device.

Further, in the present invention, in a wireless telephone device comprising a parent device connected to a wired line and a wireless telephone connected to the parent device via a wireless line, one of the parent device and the wireless telephone is provided. is provided with an input means for inputting a monitor instruction, and a first conversion means for converting an electrical signal into a voice, and a second conversion means is provided on the other hand for converting the voice into an electric signal, When a monitor instruction is input by operating the means, a signal transmission path is formed to transmit the electrical signal outputted from the second converting means to the first converting means, thereby converting the electric signal to the first converting means. The present invention is characterized by comprising a transmission path forming means for causing a sound corresponding to the first conversion means to be produced from the first conversion means.

(Function) According to the present invention, one of the respective audio signals transmitted in each direction between the parent device and the wireless telephone is
It can be shut off by switch means.

Further, according to the present invention, when a monitor instruction is input by operating the input means, a signal transmission path is formed between the second conversion means and the first conversion means, thereby causing the input to the second conversion means. The resulting voice is then produced by the first converting means.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of a wireless telephone device according to the present invention. In this embodiment, an audio switch 31 is pressed into the audio output side of the receiver 11 in the conventional master device 1 shown in FIG. 3, and a monitor switch 32 is attached. An audio switch 33 is inserted into the audio output side of the receiver 18, a monitor key 34 is attached to the dial unit 24, and a display section 40 is provided for operation. In FIG. 1, the same reference numerals are given to parts that perform the same functions as those of the conventional device shown in FIG. 3 for convenience of explanation.

In the device of this embodiment, the audio switch 3 of the parent device 1
1 is turned off, the transmitter 26 of the wireless telephone 2 - the transmitter 22 - the transmitting antenna 21 - the receiving antenna 1 of the parent device 1
If the audio signal transmission path 2-receiver 11-audio switch 31→receiver 13 is cut off, and if the audio switch 33 of the wireless telephone 2 is turned off, the transmitter 14 of the parent device 1
→ Transmitter 8 → Transmitting antenna 9 - Receiving antenna 17 of radio telephone 2 - Receiver 18 - Audio switch 33 → Handset 28
The transmission path of the audio signal is cut off. Therefore, if either the audio switch 31 of the parent device 1 or the audio switch 33 of the wireless telephone 2 is turned off, data is transmitted in both directions between the parent device 1 and the wireless telephone 2 during a call. Either one of the respective audio signals can be blocked. This allows the wireless telephone 2 side to monitor the audio around the base device 1 without the voice around the wireless telephone 2 being heard on the base device 1 side, or the voice around the base device 1
The voices around the wireless telephone 2 can be monitored on the parent device 1 side without the voices around the wireless telephone 2 being heard.

Now, in the wireless telephone device having such a configuration, the operation procedure for monitoring the voice around the wireless telephone 2 on the parent device 1 side will be described according to the flowchart of FIG.

First, in the standby state, the parent device L receives a call signal from the wireless telephone 2 (call request), a call signal arrives from the wired telephone line 3 (call request), and the extension switch 16 is pressed (
(step 510).

In such a standby state, when the monitor switch 32 is pressed down (step 511), in response, the control circuit 5 operates the transmitter 8 and the receiver 11 respectively on the control channel, and the receiver 11 is activated. Determine whether the control channel is vacant based on the received output (step 5
12). If the control circuit 6 determines that the control channel is vacant, it adds an incoming call signal to the transmitter 8 and transmits it (step 513). Note that this incoming call signal includes a communication channel designation signal indicating the communication channel.

In the wireless telephone 2, the receiver 18 is operated on the control channel and is in a standby state (step 530), and in this standby state, the control circuit 20 adjusts the received electric field based on the reception output of the receiver 11. It is determined whether or not there is one (step 531). When receiving the incoming call signal,
The control circuit 20 determines that there is a received electric field and inputs the incoming call signal (step 532). Control circuit 20
When inputting this incoming call signal, it operates the transmitter 22 on the control channel to transmit an incoming call response signal (step 533).
), then the receiver 18 and transmitter 22 are set to the communication channel indicated by the communication channel designation signal included in the incoming call signal (step 534).

In the parent device 1, the receiver 11 receives the incoming call response signal and adds it to the control circuit 6 (step 514). When the control circuit 6 receives this incoming call response signal, it transmits the previous incoming call signal. The receiver 11 and transmitter 18 are set to the communication channel specified for the wireless telephone 2 (step 15).

At this time, in the radio telephone 2, the control circuit 20 determines whether or not the communication channel is vacant based on the reception output of the receiver 18 set to the communication channel (step 535). If so, the control circuit 20 sends a channel switching completion signal to the transmitter 22 (step 836).

In the parent device 1, the receiver 11 receives the channel switching completion signal and applies it to the control circuit 6 (step 516), and when the control circuit 6 receives this channel switching completion signal, it adds a monitor signal to the transmitter 8. (Step 517)
.

In the wireless telephone 2, the monitor signal is received by the receiver 11 and added to the control circuit 20 (step 37).
When this monitor signal is input, the audio circuit is turned on to enable audio input/output via the receiver 28 and the transmitter 26, and the audio switch 33 is turned off.

At this time, the audio signal sent from the transmitter 26 of the wireless telephone 2 is transmitted along the route of transmitter 22 → transmitting antenna 21 → receiving antenna 12 of parent device 1 → receiver 11 → voice switch 31 and receiver 13. As a result, the voice input to the transmitter 26 of the wireless telephone 2 is produced from the handset 13 of the parent device 1. On the other hand, the audio signal sent from the transmitter 14 of the parent device 1 is transmitted along the route of transmitter 8 → transmitting antenna 9 → receiving antenna 17 of radio telephone 2 → receiver 18 - audio switch 33, but the audio signal 33 is cut off because it is off, so no voice is produced from the handset 28.

When the signal transmission path from the transmitter 26 to the receiver 13 is thus formed, the wireless telephone 2 notifies those nearby that the voices around the telephone are being monitored (step 538). This notification may be made by, for example, making a beep sound for a predetermined time at the same time as the signal transmission path is formed. In this case, the beep sound may be repeated at a predetermined period during the monitoring period. In addition, the prescribed display,
For example, a message such as "currently being monitored" may be displayed on the display unit 40 during the monitoring period. Furthermore, it incorporates a well-known speech synthesis unit and "starts monitoring"
Words such as the following may be output by voice synthesis.

In this way, the parent device 1 becomes the monitoring side (step 51).
8), the wireless telephone 2 becomes the side to be monitored (step 839). Therefore, here, the voices around the wireless telephone 2 can be monitored on the parent device 1 side without the voices around the wireless telephone 2 being heard by the wireless telephone 2 side.

Note that even after the incoming call signal is transmitted and received from the parent device 1 to the wireless telephone 2, even if a wireless line of a communication channel is formed between the two, a ringing tone will not be emitted from the speaker 27 of the wireless telephone 2. do not have.

Further, if the monitor switch is not pressed in step S11, the parent device 1 is in a standby state. Also,
If the control channel is not available in the step S12, if the incoming call response signal is not received in the step S14, or if the channel switching completion signal is not received in the step S16, a notification to the effect that monitoring is not possible is predetermined. After the period (step 519), the parent device 1 enters the standby state. Furthermore, if there is no received electric field in step S31, if an incoming call signal is not received in step S32, if the communication channel is not available in step S35, or if a monitor signal is not received in step S37, , the wireless telephone 2 is in the standby state.

By the way, when monitoring the audio around the parent device 1 on the radio telephone 2 side, the monitor key 34 attached to the dial unit 24 of the radio telephone 2 is pressed. In response, various data signals are transmitted and received between the parent device 1 and the radio telephone 2 through the control channel, thereby forming a radio line as a communication channel between the two. After this, wireless telephone 2
A monitor signal is sent and received from the parent device 1 to the parent device 1, and when the control circuit 6 of the parent device 1 receives the monitor signal, the audio switch 3
Turn off 1. In this case, the audio signal sent from the transmitter 14 of the parent device 1 is transmitted along the route of transmitter 8 → transmitting antenna 9 → receiving antenna 17 of radio telephone 2 → receiver 18 → audio switch 33 → receiver 28, Voices around the parent device 1 are produced from the receiver 28 of the wireless telephone 2.

Furthermore, the voice signal sent from the transmitter 26 of the wireless telephone 2 is transmitted along the route of the transmitter 22 - the transmitting antenna 21 - the receiving antenna 12 of the parent device 1 → the receiver 11 → the voice switch 31. 31 is off, so
No sound is produced from the receiver 13 of the parent device 1.

In this embodiment, an audio switch 31 is inserted into the output side of the receiver 11 of the parent device 1, and an audio switch 33 is inserted into the output side of the receiver 18 of the wireless telephone 2. 31 may be inserted into the input side of the transmitter 22 of the wireless telephone 2,
Further, an audio switch instead of the audio switch 33 may be inserted on the input side of the transmitter 8 of the parent device 1.

Furthermore, it is also possible to set up only one of the upstream and downstream wireless lines for monitoring, regardless of whether these audio switches are opened or closed. Further, in the above embodiment, the monitor signal is transmitted after switching to the communication channel, but the monitor signal may be transmitted on the control channel.

Furthermore, it is possible to monitor sounds around the main device 1 or the wireless telephone 2 from an external telephone via the wired telephone line 3. In this case, an automatic answering function for incoming calls is provided in the parent device 1 and the wireless telephone 2, respectively, and when the parent device 1 or the wireless telephone 2 automatically answers an incoming call from the wired telephone line 3, the external A predetermined button signal indicating a monitor request is sent from the telephone to the parent device 1 or wireless telephone 2 that automatically responded through the wired telephone line 3, and the parent device 1 or wireless telephone 2 receives the button signal. The monitor request may be determined based on the monitor request, and the transmission path of the audio signal applied to the receiver in response to the monitor request may be cut off by the audio switch.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to cut off either one of the respective audio signals transmitted in the opposite direction between the wireless telephones of the parent device by the switch means. It becomes possible to monitor the surrounding sounds.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the wireless telephone device according to the present invention, FIG. 2 is a flowchart showing an example of the operation of the embodiment shown in FIG. 1, and FIG. 3 is a block diagram showing an example of the operation of the embodiment shown in FIG. FIG. DESCRIPTION OF SYMBOLS 1... Parent device, 2... Radio telephone, 3... Wired telephone line, 4... Line relay 5... Hybrid circuit, 6.20... Control circuit, 7, 23... Transmission synthesizer, 8.22...Transmitter, 9.21...
Transmission antenna, 10.19...reception synthesizer,
11゜18... Receiver, 12.17... Receiving antenna, 13゜28... Receiver, 14.26... Transmitter, 15... 16Hz detector, 16... Extension switch , 24...Dial unit, 25...Hook switch, 31.33...Audio switch, 32...Monitor switch, 34...Monitor key 40...Display section. A yoke device? Aat viscous figure 2

Claims (6)

[Claims] (1) In a wireless telephone device comprising a parent device connected to a wired line and a wireless telephone connected to the parent device via a wireless line, an audio signal transmitted from the parent device to the wireless telephone; and a switch means for cutting off any one of the voice signals transmitted from the radio telephone to the parent device. (2) The wireless telephone device according to claim 1, further comprising display means for displaying that the switch means is blocking the audio signal. (3) In a wireless telephone device comprising a parent device connected to a wired line and a wireless telephone connected to the parent device via a wireless line, one of the parent device and the wireless telephone includes: An input means for inputting a monitor instruction and a first conversion means for converting an electrical signal into a voice are provided, and a second conversion means for converting the voice into an electric signal is provided on the other hand, and the input means is Forming a signal transmission path that transmits the electrical signal output from the second conversion means to the first conversion means when a monitor instruction is input by operation;
A radio telephone device comprising a transmission path forming means that thereby causes the first converting means to produce a voice corresponding to the electrical signal. (4) The radio telephone device according to claim (3), wherein the transmission path forming means includes a radio line setting means for setting a radio line connecting the first converting means and the second converting means. . (5) Of the parent device and the wireless telephone, the one provided with the second conversion means is further provided with a notification means for notifying when a monitor instruction is input by operating the input means. The wireless telephone device according to claim (3), characterized in that: (6) The parent device and the wireless telephone, whichever is provided with the second conversion means, is further provided with a notification means for notifying when the signal transmission path is formed by the transmission path forming means. The wireless telephone device according to claim (3)