JPH0278349A - Circuit for holding tone and ring tone for telephone set - Google Patents

Abstract

PURPOSE:To obtain a holding tone and ring tone circuit for telephone set able to accept a wide variety of requests from customers by devising the circuit such that the ring tone and the holding tone are able to be revised freely. CONSTITUTION:An incoming call detection circuit 6 upon the detection of an incoming signal sends the incoming signal to a control section 7 through a signal line 13. The control section 7 controls a memory circuit 8, an analog/ digital conversion circuit 9, a signal amplifier circuit 10 and a switch section 12 and gives an output to a speaker 19 via signal lines 14, 15, and 17. Similarly, in the case of changeover from the talking state into the holding state, the control section 7 controls the memory circuit 8, the analog/digital conversion circuit 9, the signal amplifier circuit 10 and the switch section 12 via a control line 18 to send a holding tone to a talking line 5. Moreover, the memory circuit 8 stores the holding tone voice signal and the incoming tone voice signal separately and the control section 7 selects them depending on applications.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hold tone/ring tone circuit for telephones, and in particular, to
The present invention relates to a holding tone/ringing tone circuit for telephones suitable for use in telephones having a central line holding function and key telephone devices.

[Prior Art] In recent years, telephones and key telephone devices having a central office line hold function have been widely used.

By the way, in such telephones and key telephone devices, a telephone hold tone/ring tone circuit is used. That is, when the telephone is on hold, the output of the melody IC built into the telephone is sent to the central office line, and when a call is received, a ring tone synchronized with the signal sent from the central office is sounded.

However, with conventional telephone hold tone/ring tone circuits, it was not possible to change the tone.

[Problems to be Solved] In the conventional hold tone/ring tone circuit for telephones described above, the music on hold tone was already determined when the telephone with the central line hold function was manufactured, and , Similarly, the tone of the 8-tone ringtone was determined by the Ic of the ringtone sending circuit, so
The problem was that they lacked individuality and did not suit the increasingly diverse lifestyles and interior decorations of customers.

The present invention has been made in view of the above-mentioned problems, and aims to provide a holding tone/ringing tone circuit for a telephone that can freely change the ringing tone and holding tone, and can meet a wide range of customer requests. purpose.

[Means for Solving Problems] In order to achieve the above object, the holding tone/ringing tone circuit for a telephone according to the present invention includes a memory circuit for storing digital audio data, a signal amplification circuit for amplifying an analog audio signal, and an external an external audio input circuit that takes in an audio signal, and converts the analog audio signal output from the external audio input circuit into digital audio data and outputs it to the memory circuit, and also converts the digital audio data output from the memory circuit into digital audio data. an analog-to-digital conversion circuit that converts it into an analog audio signal and outputs it to the signal amplification circuit; an incoming call detection circuit that detects an incoming signal; a switch circuit that switches the output destination of the signal amplification circuit; the memory circuit and the signal amplification circuit; The configuration includes a control circuit that controls the circuit, an analog-to-digital conversion circuit, an incoming call detection circuit, and a switch circuit.

That is, with such a configuration, when an incoming call is detected by the incoming call detection circuit, the control section reads out the digital audio data stored in the memory circuit, and controls the analog-to-digital conversion circuit and the signal amplification circuit. The signal is amplified as an analog audio signal, and further reproduced as a ringtone at the output destination specified by the switch circuit.

In addition, for reserved poetry, the digital audio data stored in the memory circuit is read out, amplified as an analog audio signal by the analog-to-digital conversion circuit and the signal amplification circuit, and further outputted to the output destination specified by the switch circuit. Play it as a hold music.

[Example] Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a block diagram when a holding tone/ringing tone circuit for a telephone according to an embodiment of the present invention is used in a telephone.

In the figure, 1 is a telephone set, 2 is a handset, 3 is a communication circuit, 4 is a communication line connecting the handset 2 and the communication circuit 3, and 5 is a communication line connected to a telephone office.

Next, 6 is an incoming call detection circuit, 7 is a control unit, 8 is a memory circuit, 9 is an analog-to-digital conversion circuit, IO is a signal amplification unit, 11 is an external audio input circuit, 12 is a switch circuit, and 13 to 17 is a signal line, and 18 is a control line.

Further, 19 is a speaker for reproducing ringtones.

Here, the telephone 1 is connected to a telephone office (not shown) through a telephone line 5, and houses a handset 2 through a telephone line 4. Further, the telephone call circuit 2 includes all circuits required for telephone calls.

In the above configuration, when storing hold music and ringtones,
An external audio input circuit 11 captures an external audio signal and sends it to the analog-to-digital conversion circuit 9 via a signal line 16. Then, this analog-to-digital conversion circuit 9 converts the external audio signal into a digital signal,
It is stored in the memory circuit 8 through the signal line 14.

Now, when the incoming call detection circuit 4 detects an incoming call signal sent from the telephone office, it sends the incoming call signal to the control section 7 through the signal line 13. Then, upon receiving this, the control unit 7 causes the audio signal stored in the memory circuit 8 to be transmitted from the speaker 19 as a ring tone.

This includes a memory circuit 8, an analog/digital conversion circuit 9
, by controlling the signal amplification circuit IO1 and the switch unit 12, and the audio signal is transmitted through the signal lines 14, 15 .
It is output to the speaker 19 via 17.

Similarly, when switching from the call state to the hold state, the control unit 7 controls the memory circuit 8, analog-to-digital conversion circuit 9, signal amplification unit 10, and switch unit 12 via the control line 18, and puts the call line 5 on hold. Send out sound.

Note that the memory circuit 8 stores the hold tone audio signal and the ring tone audio signal separately, and the control unit 7 selects them depending on the purpose.

Next, FIG. 2 is a block diagram when a holding tone/ringing tone circuit for a telephone according to another embodiment of the present invention is used in a button telephone device.

In the same figure, 20 is the main device in the button telephone device;
21 is a key telephone, 22 is a telephone line, and 23 is a memory for storing abbreviated numbers.

Here, the main device 20 is connected to a telephone office via a telephone line 5, and is also connected to a key telephone 21 via a telephone line 22.

In the above configuration, when storing hold music and ringtones,
First, the external audio input circuit 11 sends an external audio signal to the analog-to-digital conversion circuit 9 via the signal line 16. The audio signal digitized by the analog-to-digital conversion circuit 9 is input to the memory circuit 8 through the signal line 14 and stored as audio data.

Now, when the incoming call detection circuit 4 receives an incoming call signal from the telephone office, it sends the incoming call signal to the control unit 7 via the signal line 13. Then, upon receiving this, the control section 7 controls the memory circuit 8.
, analog-to-digital conversion circuit 9, signal amplification circuit 10,
and the switch circuit 12, respectively. and,
The audio signal stored in the memory circuit 8 is transferred to the signal lines 14 and 15.
．． 17 to key telephones 8!21 as ringtones.

Further, when switching from the call state to the hold state, the control unit 7 first fires each side and sends the audio signal in the memory circuit 8 to the call line 5 as a hold tone.

Note that the types of ring tone and hold tone are stored in the abbreviated number storage memory 23 connected to the control unit 7, and
You can easily switch between them by pressing the button above.

[Effects of the Invention] As explained above, the present invention allows the tone of the ringtone to be freely changed, thereby making it possible to create a ringtone that matches the usage environment and lifestyle of the customer. The present invention has the effect of providing a holding tone/ringing tone circuit for telephones that can expand the uses of telephones and key telephone devices, such as broadcasting product advertisements and setting stations according to customer preferences.

Furthermore, by digitizing audio storage, it becomes possible to improve durability, integrate the device, and downsize the device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a telephone holding tone/ringing tone circuit according to an embodiment of the present invention when used in a telephone, and FIG. 2 is a holding tone/ringing tone circuit for a telephone according to another embodiment of the present invention. FIG. 3 is a block diagram when the circuit is used in a button telephone device. 6: Incoming call detection circuit 7: Control unit 8: Memory circuit 9: Analog-to-digital conversion circuit IO = Signal amplification unit If External audio input circuit 12: Switch circuit

Claims (1)

[Claims] A memory circuit that stores digital audio data, a signal amplification circuit that amplifies analog audio signals, an external audio input circuit that takes in external audio signals, and converts the analog audio signal output from the external audio input circuit into digital audio data. an analog-to-digital conversion circuit that converts the digital audio data output from the memory circuit into an analog audio signal and outputs it to the signal amplification circuit; and an incoming call that detects an incoming signal. It is characterized by comprising a detection circuit, a switch circuit that switches the output destination of the signal amplification circuit, and a control circuit that controls the memory circuit, the signal amplification circuit, the analog-to-digital conversion circuit, the incoming call detection circuit, and the switch circuit. Hold tone/ring tone circuit for telephones.