JP3018623B2 - Telephone equipment - Google Patents

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 handset with a keypad.

[0002]

2. Description of the Related Art Conventionally, in a telephone device provided with a keypad in a handset, when a telephone line is captured by going off-hook, a dial tone transmitted from the station is heard by bringing the handset close to the ear and then dialing. When performing the operation, the handset is separated from the ear to operate the keypad. When using an automatic information guidance service or an automatic ticket reservation system, after dialing and connecting, a voice signal indicating the automatic information service information or automatic ticket reservation information from the other party is placed on the handset. After that, the handset is released again from the ear, the keypad is operated to transmit a PB signal to the other party, and the above-mentioned service is used.

[0003]

In the conventional telephone apparatus described above, when using the automatic information service information or the automatic ticket reservation, the handset must be released from the ear in order to operate the keypad, and the telephone is transmitted. There is a fear that the audio signal indicating each of the above service information may be heard. In addition, dial tone and voice signal cannot be heard unless the receiver is close to the ear, and when operating the keypad to make a dial call, operation cannot be performed unless the receiver is removed from the ear, which is troublesome. There was a problem.

[0004]

Means for Solving the Problems The present invention to solve the problems described above, in a telephone apparatus having a keypad on the handset, the amplifier control circuit for adjusting the sound volume of the audio signal output from the receiver , a sensor for detecting a changeover switch for blocking the diffraction of signals to the handset from feeding talking device, a switching key for switching the volume of the audio signal output from the receiver, whether approaching speaker ear receiver And the volume of the audio signal from the handset during off-hook
Operation of switch key such that large is detected and the cell <br/> spaced between ear and earpiece speaker by capacitors is detected,
Signal from transmitter to receiver by controlling the changeover switch
And control the amplifier control circuit.
And a control circuit for outputting a loud sound signal from the receiver .

[0005]

Therefore, as a result of controlling the amplifier control circuit and the changeover switch based on the operation of the changeover key and the detection output of the sensor, the wraparound of the voice signal from the transmitter to the receiver is cut off and the signal is transmitted from the receiver. The volume of the signal to be transmitted 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 one embodiment of the present invention.
In the same figure, 1 is a sounder that sounds when an incoming call is received, 2 is a push button attached to a keypad, 3 is an incoming circuit, 4 is a transmitting circuit, 5 is a loop open / close switch, 6 is a side protection sound circuit, 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 cutting off a voice signal from the transmitter circuit 11 to the receiver 8, and 13 is a 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 has approached the ear, and 17 is for switching the volume of a voice signal to the handset 8. Switch key.

FIG. 2 is an explanatory diagram for explaining the outline of the operation of the telephone device. An outline of the operation of this device will be described with reference to FIG. Off-hook (OFF H
OOK), the changeover switch 12 is turned off (n). In this case, the transmission circuit 11 is disconnected (N, D,
No), the wraparound of the audio signal from the transmitter 9 to the receiver 8 is eliminated. Next, the volume of the amplifier control circuit 7 increases,
The outgoing sound can be heard even if the ear is removed from the receiver 8 (S, J). Thereafter, when the selection number is transmitted from the push button 2 (U, D, C, K), the dial tone stops after the transmission of the first digit.

On the other hand, when an incoming call is received, the sounder 1 sounds (key, oh, i, a). When going off-hook, the loop open / close switch 5 switches to the transmission circuit 4 side (C, D, F)
In response to the incoming call, sounder 1 stops ringing. Then, after the call is established, if the switching key 17 is turned on (T, T) and the contact sensor 16 is turned off (T, S), the changeover switch 12 is turned off (N). Then, the transmission circuit 11 is cut off (na, d, no), and the wraparound of the audio signal from the transmitter 9 to the receiver 8 is shut out. Next, since the volume of the amplifier control circuit 7 is controlled to be large, the push button 2 can be operated while listening to the other party's voice and guidance of various services even when the receiver 8 is kept away from the ear. Becomes

When the switching key 17 is turned off (
D) When the contact sensor 16 is in the on state (S, S), the changeover switch 12 is turned on (N). In this case, unlike the above, the transmission circuits (na, d, no) are in a connected state. 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 receiver 8 has a normal volume,
Transmission and reception are performed in the same manner as in a conventional telephone device.

FIG. 3 shows a control circuit 13 of the telephone device.
6 is a flowchart showing the operation of the first embodiment. That is, step 3
Call at 0? Is determined, off-hook detected and outgoing? Is determined to be Yes ("Y"), the changeover switch 12 is set to the off state (step 31). As a result, the transmission circuit 11 is disconnected, and the voice signal wraps around 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 is increased (step 33), and the dial tone from the station is received by the receiver 8.
(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 transmission of the first digit stops the dial tone from the station (step 36) and selects a predetermined number of digits. A call is made to the other party by sending a signal, and when the other party answers, a call is made.

As described above, when a call with the other party is started, it is determined in step 37 that the switching key 17 is turned on. If the answer is "Y", it is determined in step 38 whether the contact sensor is off. That is, the switching key 17
Is turned on by operation, 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, the switch 12 is set to the off state, and the transmission is performed. By cutting off the speech circuit 11, the sneaking of the voice signal from the transmitter 9 to the receiver 8 is eliminated (step 40), and control is performed so that the volume from the amplifier control circuit 7 is increased (step 41). ) As a result, the other party's voice signal is heard from the receiver 8 at a large volume (step 42). In this case, of course,
Operate the push button 2 while listening to the audio signal to
The B signal can be transmitted to the other party, and therefore, the dial operation can be performed without hearing a voice signal indicating service information such as automatic information service information and automatic ticket reservation. In step 43, the end of the call is detected and determined. If the end of the call is detected by on-hook, the process ends.

If the end of the call is not detected, the flow returns to step 37 to determine whether the switching key 17 is on. Then, when the switching key 17 is turned off and No (“N”), or when the switching key 17 is in the on state, the receiver 8 is brought close to the ear and the contact sensor 16 is turned on (step S1). 38, the changeover switch 12 is set to the ON state (step 4).
4) The transmission circuit 11 is connected (step 45), and control is performed to reduce the volume from the amplifier control circuit 7 (step 46). (Step 4)
7). Then, the process proceeds to step 43 to determine the end of the call.

[0013] Also, call in step 30? Is determined to be "N", it means that, for example, an incoming call has arrived at this telephone device. In this case, in step 48, the sounder 1 is turned on to sound a ring tone, and the handling person responds accordingly. If you go off-hook, off-hook in step 49? Is determined to be “Y”. And in this case, step 50
By connecting the loop opening / closing switch 5 to the transmitting circuit 4 side and answering the incoming call, the mutual communication with the other party is started. Further, the process goes to step 37 to turn on the above-mentioned switching key 17 or to turn on the contact sensor 16. Make a decision to turn 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 cut off. In addition, since the volume of the signal transmitted from the receiver is increased, 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 the drawings]

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

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sounder 2 Push button 3 Receiving circuit 4 Sending circuit 5 Loop open / close switch 6 Protective sound circuit 7 Amplifier control circuit 8 Receiver 9 Transmitter 10 Receiving circuit 11 Transmitting circuit 12 Switching switch 13 Control circuit 14 Transmission interface circuit 15 Judgment circuit 16 Contact sensor 17 Switching key

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/60 H04M 1/00 H04M 1/72 H04B ⁷ /24-7/26 H04Q ⁷ /00-7/38

Claims (1)

(57) [Claims] To 1. A handset in the telephone apparatus having a keypad, selector switch for blocking the amplifier control circuit for adjusting the sound volume of the audio signal output from the receiver, the wraparound signals to the handset from feed story unit And the sound output from the handset
A sensor for detection and switching key for switching the volume of the voice signal, whether or not the approaching speaker of the ear to the handset, off
Make the volume of the audio signal from the handset louder when hooked
Detected operation Do the switching key, and the sensor
When the separation between the ear of the speaker and the receiver is detected by the control unit, the switch is controlled to control the signal from the transmitter to the receiver.
Block the sneak path and control the amplifier control circuit.
And a control circuit for controlling the receiver to output a loud sound signal from the receiver .