JPH03171854A - Telephone equipment - Google Patents

Abstract

PURPOSE:To prevent a ringing tone from annoying the neighbors by sending the ringing tone with the normal sound volume the number of times set by a frequency setting circuit or up to the time set by a time setting circuit and reducing the sound volume thereafter to continuously send the ringing tone. CONSTITUTION:A sound volume control circuit 5 sends a control signal, which sets the sound volume of the ringing tone to the normal sound volume (large sound volume) until the frequency in transmission of a sounding signal counted by a counting circuit 3 reaches the reference value set by a frequency setting circuit 4. After this frequency in transmission reaches the reference frequency set by the frequency setting circuit 4, a control signal which reduces the sound volume of the ringing tone to a value smaller than the normal sound volume is sent to the ringing tone generating circuit 6. Thus, the ringing tone is prevented from annoying the neighbors.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a telephone device, and more specifically, when an incoming call signal is sent from a terminal on the other end through a telephone line, several ringing sounds occur. The present invention relates to a telephone device that can make the volume of the subsequent ringing sound smaller than the volume of the previous ringing sound.

(Prior Art) In conventional telephone devices, the user can freely set the volume of the ringing sound by changing it stepwise or continuously between the minimum level and the maximum level. When there is an incoming call from the other party's terminal, a ringing tone is sent out at the set volume.

(Problem to be Solved by the Invention) By the way, depending on the installation location of the telephone device, it may be necessary to make incoming calls visible even in a room different from the installation location, and in that case, the ringing sound of the telephone device may be increased. You need to set the volume. However, on the other hand, at night or when you are away, you may want to set the ringing sound to a low volume so as not to disturb your neighbors.

In such cases, with conventional telephone devices, the volume control volume of the telephone device must be adjusted and set each time, making it extremely inconvenient to use. The present invention has been made in view of the above-mentioned circumstances, and its purpose is to suppress the subsequent ringing sound after sending several ringing sounds when an incoming call signal is sent from the other party's terminal through the telephone line. To provide a telephone device capable of making the output volume lower than the previous output volume.

(Means for Solving the Problems) In order to solve the above problems, the telephone device of the present invention detects an incoming signal, which is a ringing signal from a terminal on the other end, sent through a telephone line, and sends out a ringing signal. an incoming call detection circuit; a counting circuit that counts the number of times the ringing signal is output from the incoming call detection circuit; and a number setting circuit that sets a reference number of times for comparison with the number of times the ringing signal is output as counted by the counting circuit; Until the number of outputs of the ringing signal counted by the counting circuit reaches the reference number set by the number setting circuit, the output volume of the ringing sound is set to the normal volume, and the number of outputs of the ringing signal counted by the counting circuit is After the number of outputs reaches a reference number set by the number of times setting circuit, a volume control circuit is employed which reduces the volume of the ringing sound to be lower than the normal volume. Furthermore, in the above structure, instead of the coefficient circuit, a clock circuit that starts measuring time by the first ringing signal from the incoming call detection circuit is used, and instead of the number setting circuit, the time measured by the clock circuit is used. A time setting circuit is used to set a reference time for comparison with the time, and the volume control circuit is configured to compare the time from these time measurement circuits with the reference time set by the time setting circuit.

(Function) When the incoming call detection circuit detects an incoming call signal, which is a calling signal from the other party's terminal, sent through the telephone line,
A ringing signal obtained by rectifying the incoming call signal is sent from the incoming call detection circuit. This ringing signal is input to a counting circuit, and the number of outputs of the ringing signal is counted in the counting circuit. and,
The output of this counting circuit is input to the volume control circuit. Further, in the number setting circuit, a reference number of times is set for comparison with the number of outputs of the ringing signal counted by the counting circuit, and this reference number of times is also input to the volume control circuit. The volume control circuit compares the number of outputs of the ringing signal input from the counting circuit with the reference number set by the number setting circuit, and based on the comparison result, the number of outputs of the ringing signal is determined until the number of outputs of the ringing signal reaches the reference number. The volume of the ringing sound is set as the normal volume, and after the number of outputs of the ringing signal reaches the reference number, the volume of the ringing sound is made smaller than the normal volume. For example, if the reference number of times is set to four, the first four ringing sounds will be sent out at the normal volume, and the fifth and subsequent ringing sounds will be sent out at a lower volume than the normal volume.

In addition, instead of the coefficient circuit, a clock circuit that starts measuring time by the first ringing signal from the incoming call detection circuit is used, and instead of the number setting circuit, a clock circuit is used to compare the time measured by the clock circuit. When a time setting circuit for setting the reference time is used, the following will occur. In other words, if the time setting circuit is set to, for example, 12 seconds (this 12 second setting is due to the fact that the ringing tone is sent out in a 3 second cycle of 1 second and 2 second stop), the first call from the incoming call detection circuit The clock circuit starts measuring time by the ringing signal, and sends it to the volume control circuit in real time.Since 12 seconds is set as the reference time in the volume control circuit, the reference time of 12 seconds is set in the volume control circuit. and the time from the clock circuit, and until the time from the clock circuit reaches the reference time, the volume of the ringing sound is sent as the normal volume, and after the time from the clock circuit reaches the reference time. The ringing sound is sent at a lower volume than the normal volume.In other words, since the reference time is set to 12 seconds, the first four ringing sounds are sent at the normal volume, and the fifth Subsequent ringing sounds will be transmitted at a lower volume than normal.

(Example) Examples of the present invention will be described below with reference to the drawings. [Embodiment 1] FIG. 1 is a block diagram showing the electrical configuration of a telephone device according to this embodiment. In the figure, a telephone line vA1 that connects to the other party's terminal via an exchange (not shown) is guided to an incoming call detection circuit 2 that detects an incoming call signal, which is a calling signal from the other party's terminal, and sends out a ringing signal. The output of the incoming call detection circuit 2 is led to a counting circuit 3 for counting the number of inputs of the ringing signal, and also to a ringing sound generation circuit 6 for generating a ringing sound. Further, the output of the ringing sound generating circuit 6 is led to a speaker 7. On the other hand, the output of the counting circuit 3 is led to a volume control circuit 5. In addition to this, the volume control circuit 5 is led to the output of a number setting circuit 4 for setting a reference number of times to be a reference value for comparison of the number of times the ringing signal is output. The volume control circuit 5 uses the reference number set by the number setting circuit 4 and the counting circuit 3.
A signal based on the comparison result is sent to the ringing sound generation circuit 6 as a signal for controlling the sound volume of the ringing sound. In other words, the volume control circuit 5 keeps the volume of the ringing sound at the normal volume (high volume) until the number of times the ringing signal is sent, counted by the counting circuit 3, reaches the reference number set by the number setting circuit 4. ) is sent to the ringing sound generating circuit 6, and after the number of times the ringing signal is sent out as counted by the counting circuit 3 reaches the reference number set by the number setting circuit 4, the sound volume of the ringing sound is increased. A control signal is sent to the ringing sound generation circuit 6 to make the sound volume smaller than the normal volume. FIG. 2 is a circuit diagram showing a more specific structure of the telephone device shown in FIG. 1. In the figure, the ringing signal from the incoming call detection circuit 2 is connected to the clock terminal CK of the counter 3l and the ON/OFF state of the oscillation circuit 61.
It is led to the OFF input and the trigger input T of the one-shot multi-vibrator 32, and the output Q of the one-shot multi-vibrator 32 is led to the recent human power R of the counter 3l. The counter 31 is composed of a 3-bit binary counter, and counts the ringing signal (pulse) inputted to the black terminal CK, and outputs Q., Qt.
, Q3, the number of counts is output in the form of a binary number of Qs x 2" 10 Q, x 2' + Q + , the output becomes "0". Also, the prohibited input (D
When 1lll is manually input to the input register (isable), counting is stopped and the count value up to that point is retained in the output. Each output Q, . Qx. Q3 is each manual power D. of the corresponding decoder 4l. , D.I., D. and the decimal output S.~S,8 corresponding to the value calculated by [),x 2''+pzx 2'+DIX 2'
One of the two outputs is set to logic "1", and the remaining seven outputs are all set to logic "0". Each output S. of the decoder 41 ~S, are connected to eight terminals a0 to a7 corresponding to each of the changeover switches 42, and a common terminal C of the changeover switches 42 is connected to the inhibit input (Dis) of the counter 31.
.able) and to the base of an NPN transistor 52 via an inverter 51. The one-shit 7 multi-bye break 32 has a trigger input T.
When a ringing signal is input to , its output Q is set to "0",
This circuit sets the output Q to "1" after a time t determined by the resistor R1 and the capacitor CI has elapsed. In other words, the output Q after time t has elapsed since the trigger input
is set to "1" again. Here, the time t determined by the resistor R1 and the capacitor C1 is such that the ringing signal is normally 1
Since it is sent out in a 3 second cycle of sending out for 2 seconds and stopping for 2 seconds, it is set to about 4 seconds, which is slightly longer than that.

Therefore, this one shot multi-bye break 32
is a re-triggerable system in which if the next trigger input is received before time t has elapsed after the trigger input, time t is reset from the time of the trigger input. It has become.

The oscillation circuit 6l has its oscillation and stop controlled by a ringing signal led to the ON/OFF input, and its output is a PNP whose emitter is connected to the power supply voltage VCC and whose collector is connected to one terminal of the speaker 7. type transistor 62. The transistor 62 is controlled into a conductive state and a non-conductive state by a signal from the oscillation circuit 6l. That is, when the ringing signal is not input, the oscillation circuit 61 is in the OFF state and the transistor 62 is kept in a non-conducting state, and when the ringing signal is input manually, the oscillation circuit 61 is in the ON state.
Transistor 62 remains conductive.

Also, the other end of the speaker 7 has a volume VR for setting the volume.
It is connected to one end of I, and the volume VR for setting the volume
The other end of I is connected to the collector of a transistor 52 whose emitter is grounded and whose base is connected to the inverter 5l. It is grounded via the decreasing volume VR2. In the above configuration, the counting circuit 3 is composed of a counter 3l and a one-shot multi-byte break 32, the number setting circuit 4 is composed of a decoder 41 and a changeover switch 42, and the volume control circuit 5 is composed of an inverter 51, a transistor 52, and a volume reduction switch. The ringing sound generating circuit 6 is composed of an oscillation circuit 61, a transistor 62, and a volume setting volume VRI.

Next, the operation of the telephone device with the above structure will be explained.

However, the changeover switch 42 is assumed to be manually switched, and in this embodiment, it is assumed that the common terminal C is connected to the terminal a. In other words, the number of times the ringing signal is set is "4".
It becomes.

Before the ringing signal is input through the incoming call detection circuit 2, the oscillation circuit 61 is in an OFF state and no ringing sound is output. At this time, one shot multi-bye break 3
2 has passed the time t determined by the resistor R1 and the capacitor CI, and its output Q is "0". Therefore, the counter 3l is reset and its output is "0"
(i.e. Q+ =0. Qz =0, (;h
=O), the input to the decoder 41 is "0" (that is, D.=O.D.=0.Dj =O). Therefore, the output of the decoder 41 is the output S. Only logic “
1", and the other outputs S, ~S, become logic "0". That is, since the output S, connected to the common terminal C, is logic "0", the output of the inverter 51 becomes logic "1". As a result, a current flows to the base of the transistor 52, and conduction occurs between the collector and emitter of the transistor 52.As a result, the volume setting volume VRI is grounded via the collector and emitter of the transistor 52, so this state The ringing sound sent out from the speaker 7 has the volume set by the volume setting volume VRI.

In this state, when the first ringing signal is input via the incoming call detection circuit 2, the oscillation circuit 6l turns on, that is, starts oscillation, so the transistor 62 becomes conductive, and the transistor 62, the speaker 7, and the volume setting A ringing current flows through the volume setting volume VRI and the transistor 52, and a ringing sound is output from the speaker 7 at a high volume (normal volume) determined by the volume setting volume VRI. On the other hand, this ringing signal triggers the one-shot multi-by-break 32 and sets its output Q to "0", so the counter 31 becomes operable.

Therefore, the counter 31 counts the first ringing signal input to the clock terminal CK and sets the count output to "1". That is, Q,=I, Qt=O, and Qs=0. If a second ringing signal is input from the incoming call detection circuit 2 before the time t determined by the resistor Rl and the capacitor CI has elapsed, the one-shot multi-byte brake 32 is retriggered and the time t is set again. , the output Q will maintain the state of "0", and the counter 3
1 counts the second ringing signal input to the cloth terminal CK and sets the count output to "2". That is, Q+
=0. Qz = 1, Q3 = O. In this way, when the fourth ringing signal is input from the incoming call detection circuit 2, the one-shot multi-byte break 32 keeps its output Q at "O", and the counter 3l outputs the cross terminal C.
The fourth ringing signal input to K is counted and the count output is set to "4". That is, Ql = O, Qz = Q,
Q3 = 1. At this time, the output of the decoder 4l is such that only the output S4 is logic "
l”, other outputs S0 to S, and S, to S, are logic “0”
becomes. That is, the output S4 connected to the common terminal C
Since the output of the inverter 51 becomes a logic "1", the current supply to the base of the transistor 52 is stopped, and the transistor 52 becomes non-conductive. As a result, the volume VR for volume setting
I will be grounded via the volume reduction volume VR2 connected in series. That is, the ringing current at this time flows through the transistor 62, the speaker 7, the volume setting volume VRI, and the volume decreasing volume VR2, and is determined by the volume setting volume VRI and the volume decreasing volume VR2 from the speaker 7. A ringing sound will be transmitted at a low volume. In addition, since the output S4 connected to the common terminal C of the changeover switch 42 becomes logic "1", the counter 31 to which this output S4 is led to the disable input (Disable) counts the subsequent input of the ringing signal. It disappears. Therefore, even if the ringing signal is manually input after the fifth time, the counter 3l maintains the counting output "4", and the logic "l" from the output S4 continues to be output to the common terminal C of the switching switch 42. The fifth and subsequent ringing sounds sent from the speaker 7 are as follows:
Volume setting volume vRl and volume reduction volume V
The signal will continue to be transmitted at a low volume determined by R2. In addition, the one-shift multi-by-beat rake 32 is retriggered every time a subsequent ringing signal is input, and the one-shift multi-bye rake 32
is reset, and its output Q will maintain the state of "0".

Then, when the input of the ringing signal from the incoming call detection circuit 2 disappears, the output Q of the one-shot multi-byte break 32 changes from "0" to "1" after the elapse of the time t determined by the resistor Rl and the capacitor CI. , at this point, the counter 31 is reset and returns to its initial state. That is, the telephone device described above only sends out the ringing sound at a high volume for the first four times to ensure that the user is informed that there is a call, and sends out the ringing sound at a low volume from the fifth time onward. This ensures that even if a call is received late at night and cannot be answered immediately, it will not cause any inconvenience to those around you. Note that in the above embodiment, the counter 3l and the decoder 4l
Although this is a 3-bit structure, the number of bits is not limited to this. Further, in the above embodiment, the decoder 41 and the changeover switch 42 are used as the number setting circuit 4, and the set number of times can be changed arbitrarily by switching the changeover switch 42.
4", the switching switch 42 is omitted and the output S4 of the decoder 41 is transferred to the inverter 51 and the counter 31.
It may be directly connected to the disable input (Disable) of the counter 31, or the decoder 41 may be omitted and the output Q of the counter 31
, to the inverter 51 and counter 31 inhibit input (Dis
It is also possible to connect directly to the circuit (able), and the number setting circuit 4 shown in FIG. 1 can be substantially achieved by these as well.

[Embodiment 2] FIGS. 3 and 4 show a telephone device according to this embodiment,
FIG. 3 is a block diagram showing the electrical configuration, and FIG. 4 is a circuit diagram showing a more specific configuration.

That is, the telephone device of this embodiment uses a clock circuit 8 that starts measuring time in response to the first ringing signal from the incoming call detection circuit 2 instead of the coefficient circuit 3 in the first embodiment, and also includes a frequency setting circuit. 4, the clock circuit 8
The volume control circuit 5 uses a time setting circuit 9 to set a reference time for comparison with the time measured by the timer circuit 9, and the volume control circuit 5 compares the time from the time measurement circuit 8 with the reference time set by the time setting circuit 9. This is something I have been advised to do. The rest of the structure is the same as that of the first embodiment, and therefore the same blocks and circuit parts are given the same reference numerals.

That is, as shown in FIG.
The configuration is such that the outputs of 3 are connected. This clock circuit 83
In this embodiment, the counter 8 outputs one pulse at a period of 3 seconds.
It is designed to be sent to the No. 1 cloth terminal CK. As a result, the structure of the one-shot multi-by-break 82, decoder 91, and changeover switch 92 is also changed from that in the first embodiment.
A device similar to that described above can be used, and its operation is exactly the same as that of the above embodiment I.

Further, the clock circuit 83 can be configured to send out one pulse at a period of one second.

In this case, the counter 81 is configured with a 4-bit binary counter, and the decoder 91 has four inputs D corresponding to the counter 81.
,~D4 and D4X2'+Ds×2''
The decimal output S, ~51, corresponds to the value calculated by + D t
6, and the selector switch 92 is also provided with 16 terminals a1 to al6. In this embodiment, by connecting the common terminal C of the changeover switch 92 to the terminal all, it is possible to perform the same operation control as in the first embodiment. In the second embodiment described above, the decoder 9l and the changeover switch 92 are used as the time setting circuit 9, and the changeover switch 92
However, if the set time is fixed to 2 seconds, the switching switch 92 can be omitted and the decoder 9l
The output S+z of may be directly connected to the inverter 51 and the disable input (Disable) of the counter 81. (Effects of the Invention) When the telephone device of the present invention receives a call from the other party's terminal, the telephone device rings at the normal volume until the number of times set by the number setting circuit or the time set by the time setting circuit. The system is configured to send out a ringing sound, then lower the volume and continue to send out the ringing sound, so even if the call comes in late at night and you cannot answer it right away, or if you are away from home, etc. , there is no need to worry about disturbing people around you due to the ringing noise.

[Brief explanation of the drawing]

FIG. 1 is a Bronk diagram showing the electrical structure of a telephone device according to Embodiment 1 of the present invention, FIG. 2 is a circuit diagram showing a more specific structure of the telephone device, and FIG. 3 is a diagram of the present invention. FIG. 4 is a block diagram showing the electrical configuration of the telephone device according to the second embodiment, and FIG. 4 is a circuit diagram showing a more specific configuration of the telephone device. l... Telephone line 2... Incoming call detection circuit 3... Counting circuit 31... Counter 32... One shot multi-bye break 4... Number of times designation circuit 41... Decoder 42... Changeover switch 5...Volume control circuit 51...Inverter 52...Transistor 6...Ring sound generation circuit 61...Oscillating circuit 62...Transistor 7...Subika VRI...Volume for volume adjustment VR2 ... Volume for volume reduction 8 ... Clock circuit 8 l ... Counter 82 ... One shot 83 ... Clock circuit 9 ... Time setting circuit 91 ... Decoder 92 ... Switching switch multi-vibration brake Rainbow Reichi

Claims (1)

[Scope of Claims] 1) An incoming call detection circuit that detects an incoming call signal that is a calling signal from a terminal on the other end sent through a telephone line and sends out a ringing signal; and output of the ringing signal from the incoming call detection circuit. a counting circuit for counting the number of times the number of outputs of the ringing signal counted by the counting circuit; a number setting circuit for setting a reference number of times for comparison with the number of outputs of the ringing signal counted by the counting circuit; The output volume of the ringing sound is kept at the normal volume until the reference number of times set by the number of times setting circuit is reached, and the number of outputs of the ringing signal counted by the counting circuit reaches the reference number of times set by the number of times setting circuit. 1. A telephone device comprising: a volume control circuit that reduces the volume of the ringing sound after reaching the normal volume. 2) An incoming call detection circuit that detects an incoming call signal that is a ringing signal from the other party's terminal sent through the telephone line and sends out a ringing signal, and starts measuring time with the first ringing signal from the incoming call detection circuit. a time-measuring circuit that sets a reference time for comparison with the time measured by the time-measuring circuit; and a time-setting circuit that sets a reference time for comparison with the time measured by the time-measuring circuit; Until then, the volume of the ringing sound is set to the normal volume, and after the time measured by the clock circuit reaches the reference time set by the time setting circuit, the volume of the ringing sound is set to the normal volume. A telephone device comprising: a volume control circuit for reducing the volume.