JPH0541728A - Telephone equipment - Google Patents

Abstract

PURPOSE:To enable a user to operate push buttons while hearing the voice of the other party without bringing his ear close a receiver by switching the reception sound volume of a telephone equipment having a hand set with key pads. CONSTITUTION:When a switching key 17 is turned on by operation and a contact sensor 16 is turned off by separation of a receiver 8 from his ear, a changeover switch 12 is turned off. As the result, passing-round of an audio signal from a transmitter 9 to the receiver 8 is cut off, and the sound volume from an amplifier control circuit 7 is increased, and the sound volume of the signal sent from the receiver 8 is increased. Consequently, the user can operate push buttons 2 while hearing the audio signal of the other party or the like without bringing his ear close the receiver 8. When the switching key 17 is turned off or the contact sensor 16 is turned on, the same transmission/reception operation as a conventional telephone equipment is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device having a keypad on a handset.

[0002]

2. Description of the Related Art Conventionally, in a telephone device provided with a keypad on a handset, a dial tone emitted from a station when a station line is captured by going off-hook is heard by placing the handset close to the ear and then dialing. When performing the operation, the handset is moved away from the ear to operate the keypad. When using the automatic information guidance service or the automatic ticket reservation system, after dialing and connecting, put a voice signal indicating the automatic information service information or the automatic ticket reservation information from the other party into the handset. Then, the handset is released from the ear again, and the keypad is operated to send the PB signal to the other party to use the above service.

[0003]

In the conventional telephone device described above, when using the automatic information service information or the automatic ticket reservation, in order to operate the keypad, the handset must be released from the ear, and the handset is transmitted. There is a risk that the voice signal indicating each of the above service information may be heard. In addition, the dial tone and voice signal cannot be heard unless the receiver is brought close to the ear, and when operating the keypad for dialing, the operation is troublesome because the receiver cannot be operated without releasing the ear from the ear. There was a problem.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a telephone device equipped with a handset with a keypad, an amplifier control circuit for adjusting the volume output from the handset, and a handset. A switch for blocking the sneaking of the output signal from the transmitter when the volume of the speaker is increased, a selector key for switching the volume output from the receiver, and a sensor that detects whether or not the ear approaches the receiver. , An amplifier control circuit and a control circuit for controlling the changeover switch based on the operation of the changeover key and the detection output of the sensor.

[0005]

Therefore, as a result of the control of the amplifier control circuit and the changeover switch based on the operation of the changeover key and the detection output of the sensor, the sneak of the voice signal from the transmitter to the receiver is blocked and the signal is transmitted from the receiver. The volume of the signal to be increased increases.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.
In the figure, 1 is a sounder that sounds when an incoming call arrives, 2 is a push button attached to a keypad, 3 is an incoming circuit, 4 is an outgoing circuit, 5 is a loop open / close switch, 6 is a sound-proof sound circuit, and 7 is Amplifier control circuit, 8 is a receiver, 9 is a transmitter, 10 is a receiver circuit, 11 is a transmitter circuit, 12 is a changeover switch for blocking the sneak of a voice signal from the transmitter circuit 11 to the receiver 8, and 13 is this telephone. A control circuit for controlling the entire apparatus, 14 is a transmission interface circuit, 15 is a determination circuit, 16 is a contact sensor for detecting whether or not the handset 8 is close to the ear, 17 is for switching the volume of the voice signal to the handset 8. Is a switch key.

Next, FIG. 2 is an explanatory view for explaining the outline of the operation of this telephone device. An outline of the operation of this device will be described based on this figure. Off-hook when making a call (OFF H
Then, the changeover switch 12 is turned off (ne). In this case, the transmitter circuit 11 is disconnected (na, ni,
No), the wraparound of the voice signal from the transmitter 9 to the receiver 8 is eliminated. Next, the volume of the amplifier control circuit 7 becomes large,
A dial tone can be heard even if the ear is taken away from the handset 8 (s, chi). After that, when the selection number is sent from the push button 2 (U, D, K, K), the dial tone stops after sending the first digit.

On the other hand, when an incoming call arrives, the sounder 1 sounds (ki, o, i, a). When off-hook, the loop open / close switch 5 switches to the transmitter circuit 4 side (C, C, C)
The sounder 1 stops ringing in response to an incoming call. After the call is established, if the changeover key 17 is on (tsu, te) and the contact sensor 16 is off (s, se), the changeover switch 12 is in an off state (ne). Then, the transmitter circuit 11 is disconnected (na, ni, no), and the sneak of the audio signal from the transmitter 9 to the receiver 8 is shut out. Next, since the volume of the amplifier control circuit 17 is controlled to be high, it is possible to operate the push button 2 while listening to the voice of the other party or guidance of various services even when the receiver 8 is separated from the ear. Becomes

Further, the switching key 12 is in the off state (
Or the contact sensor 16 is in the on state (s, se), the changeover switch 12 is in the on state (nu). In this case, unlike the above, the transmitter circuits (Na, D, and N) are connected. In this case, the volume of the amplifier control circuit 7 is controlled to be low, and as a result, the voice heard from the handset 8 has a normal volume,
Transmission / reception is performed in the same manner as the conventional telephone device.

Next, FIG. 3 shows the control circuit 13 of this telephone device.
3 is a flowchart showing the operation of FIG. That is, step 3
Call with 0? Is made, off-hook is detected and outgoing? Is determined to be Yes (“Y”), the changeover switch 12 is set to the off state (step 31), and as a result, the transmitter circuit 11 is disconnected and the voice signal is circulated from the transmitter 9 to the receiver 8. Disappears (step 32). Then, control is performed so that the volume from the amplifier control circuit 7 becomes large (step 33), and the dial tone from the station is received by the handset 8
Is heard at a high volume (step 34). As a result, the dial tone is heard even when the receiver is removed from the ear, and the operator can operate the push button 2 while listening to the dial tone. When the selection number is transmitted by operating the push button 2 (step 35), the dial tone from the station is stopped by the transmission of the first digit (step 36), and a predetermined digit number is selected. The signal is sent to call the other party, and when the other party answers, the call state is set.

As described above, when the call with the other party is started, it is determined in step 37 that the switching key 17 is turned on. Then, if this is "Y", it is subsequently determined in step 38 that the contact sensor is off. That is, the switching key 17
Is operated to turn on, and at this time, if the handset 8 is separated from the ear and the contact sensor is in the off state, the process proceeds to step 39, sets the changeover switch 12 to the off state, and transmits. By disconnecting the talk circuit 11, the sneak of the voice signal from the transmitter 9 to the receiver 8 is eliminated (step 40), and subsequently, the control for increasing the volume from the amplifier control circuit 7 is performed (step 41). ) As a result, the voice signal of the other party can be heard from the handset 8 at a high volume (step 42). In this case, of course,
Operate push button 2 while listening to the audio signal and press P
The B signal can be sent to the other party, so that the dial operation can be performed without hearing the voice signal indicating the automatic information service information or the service information such as the automatic ticket reservation. Then, in step 43, it is determined whether or not the end of the call is detected, and if the end of the call is detected by the on-hook, the process ends.

If the end call is not detected, the process returns to step 37 and it is determined whether the switching key 17 is turned on. Then, when the switch key 17 is turned off and is No (“N”), or when the handset 8 is brought close to the ear and the contact sensor 16 is turned on even if the switch key 17 is in the on state (step). In the case of "N" in 38), the changeover switch 12 is set to the ON state (step 4).
4) The voice transmission circuit 11 is connected (step 45), and then control is performed so that the volume from the amplifier control circuit 7 becomes low (step 46). The volume is the same as the volume of (Step 4
7). Then, after that, the process shifts to step 43 to judge the end of the call.

Also, is the call made in step 30? Is "N", it means that an incoming call has arrived at this telephone device. In this case, in step 48, the sounder 1 is turned on to ring the ring tone, and the handler responds accordingly. If you go off-hook, is it off-hook at step 49? Is determined to be “Y”. And in this case, step 50
Then, the loop open / close switch 5 is connected to the transmitting circuit 4 side to respond to the incoming call, whereby the mutual call is started with the other party, and the process proceeds to step 37 to turn on the switching key 17 or the contact sensor 16 described above. Make a decision of off.

[0014]

As described above, according to the present invention, the amplifier control circuit and the changeover switch are controlled based on the operation of the changeover key and the detection output of the sensor, and the sneak of the voice signal from the transmitter to the receiver is blocked. In addition, since the volume of the signal transmitted from the receiver is increased, there is an effect that the dial transmission operation can be performed without hearing the dial tone or the voice signal from the other party even when the receiver is separated from the ear.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a telephone device according to the present invention.

FIG. 2 is an explanatory diagram showing an outline of operation of the telephone device.

FIG. 3 is a flowchart showing an operation of the telephone device.

[Explanation of symbols]

 1 sounder 2 push button 3 incoming circuit 4 outgoing circuit 5 loop open / close switch 6 anti-noise side circuit 7 amplifier control circuit 8 receiver 9 transmitter 10 receiver circuit 11 transmitter circuit 12 changeover switch 13 control circuit 14 transmission interface circuit 15 judgment circuit 16 Touch sensor 17 Switching key

Claims (1)

[Claims] 1. In a telephone device equipped with a handset with a keypad, an amplifier control circuit for adjusting the volume output from the handset, and a sneak of an output signal from the handset when the volume of the handset is increased. Changeover switch that shuts off the sound, a changeover key that switches the volume output from the handset,
A telephone device comprising a sensor for detecting whether or not the ear approaches the handset, and a control circuit for controlling the amplifier control circuit and the changeover switch based on an operation of the changeover key and a detection output of the sensor. ..