JPH09186757A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make off-hook by detecting an incoming call reply with high accuracy by providing an incoming call tone elimination means so as to attain an incoming call reply in voice even in the case that the incoming call tone is outputted. SOLUTION: When an incoming call reply detection section 29 detects a voice reply with respect to an incoming call, a control section 24 detects the incoming call reply to hooks off a handset. Then an incoming call tone elimination section 30 eliminates an incoming call tone component from a voice signal including the incoming call tone and the incoming call reply obtained by a voice input transmission section 25 and gives the result to the incoming call reply section 29. Since no incoming call component is included in the voice signal for incoming call tone reply detection, a voice reply with respect to an incoming call conducted in the timing when the incoming call tone is generated is detected and the voice reply is made without taking a timing into account in a hand-free mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone, and more particularly to a telephone having a handsfree function.

[0002]

2. Description of the Related Art FIG. 8 shows a block diagram of a telephone having a hands-free function which enables a call without holding a handset.
In the figure, the incoming call detection unit 11 detects an incoming call from the telephone line 10. The incoming call notification unit 12 is an incoming call detection unit 11
When it is supplied with the detection signal of
The voice signal of the ring tone is supplied to the ring tone output unit 13, and the ring tone is output as a voice.

When the user lifts the handset or presses the incoming call button to go off-hook, the control unit 14 detects this and enters the call state. As a result, the voice signal input by the voice input unit 15 is sent from the voice transmitting unit 16 to the telephone line 10, the voice signal transmitted by the telephone line 10 is received by the voice receiving unit 17, and the voice signal is output from the voice output unit 18 as voice. Is output. At the same time, the operation of the incoming call notification unit 12 is stopped.

FIG. 9 shows a block diagram of a conventional hands-free telephone having a voice response function. 8, those parts which are the same as those corresponding parts in FIG. 8 are designated by the same reference numerals, and a description thereof will be omitted. In FIG. 9, when a voice response such as “Yes” is made to the ring tone,
It is supplied from the voice input unit 15 to the incoming call response detection unit 19 and detected. The control unit 14 supplied with this detection signal goes off-hook to connect the voice transmitting unit 16 and the voice receiving unit 17 to the telephone line 10.

[0005]

A hands-free telephone is very convenient when both hands are closed. However, even if it has a hands-free function, it requires off-hook operation such as pressing the incoming call button when receiving an incoming call.
With the phone shown in, its convenience is halved.

[0006] In the case of performing off-hook by detecting an incoming call response of voice like the telephone shown in Fig. 9, it is necessary to perform the voice response when the ring tone is not output. As shown in FIG. 10, the ring tone is output for 1 second in a cycle of 3 seconds.
For this reason, the user has to make a voice response at a timing of the incoming call response period between the ringing tones, which is not convenient.

[0007] The present invention has been made in view of the above points,
An object of the present invention is to provide a telephone that can respond to an incoming call by voice even when a ring tone is output, accurately detect the incoming call response, and go off-hook.

[0008]

According to a first aspect of the present invention, there is provided a ring tone generating means for detecting an incoming call and outputting a ring tone, and a voice input transmitting means for converting an input voice into a voice signal and transmitting the voice signal. A telephone having a received voice output means for converting a received voice signal into a voice and outputting the voice, an incoming call response detection means for detecting a voice response to an incoming call, and a control means for performing off-hook by detecting the incoming call response. There is a ringing tone removing unit that removes the ringing tone component from the voice signal including the ringing tone and the ringing response obtained by the voice input transmitting unit and supplies the ringing tone component to the ringing response detecting unit.

Therefore, the voice signal for detecting the incoming call response does not include the incoming call tone component, and the voice response to the incoming call made at the timing of the incoming call tone can also be detected, and the timing can be considered hands-free. The voice response can be performed without any use, and the usability is improved.

According to a second aspect of the present invention, in the telephone set according to the first aspect, the ringing tone interruption control for interrupting the output of the ringing tone of the ringing tone generation means after the voice response is detected by the incoming call response detecting means. Have means. Therefore, the incoming sound does not include the ring tone, and the accuracy of detecting the voice response is improved.

According to a third aspect of the present invention, in the telephone according to the second aspect, the ring tone interruption control means outputs the ring tone of the ring tone generation means when the detection period of the voice response is less than a predetermined value. Resume. For this reason, if the detection period of the voice response is short, it is possible to promptly input the correct voice response again by outputting the ring tone as a false detection of noise.

According to a fourth aspect of the present invention, in the telephone according to the first aspect, the voice response detected by the incoming response detecting means is compared with a previously stored incoming response pattern, and when there is a match, the incoming response is detected. It has an incoming call response matching means for determining. For this reason, it is possible to prevent erroneous detection of a voice unrelated to the ring tone as a voice of the incoming call response, and it is possible to perform highly accurate response detection.

According to a fifth aspect of the present invention, in the telephone according to the first aspect, the voice response detected by the incoming call response detecting means is temporarily stored, the voice response is read out after off-hook, and the voice input transmitting means transmits the voice response. It has an incoming call response output means for transmitting. Therefore, by transmitting the content of the incoming call response after off-hook, the usability is improved and natural use becomes possible.

[0014]

1 shows a block diagram of a first embodiment of a telephone according to the present invention. In the figure, an incoming call detection unit 21 detects an incoming call from the telephone line 20. When receiving the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates a voice signal of a ring tone, and the voice signal of the ring tone is supplied to the ring tone output unit (speaker) 23 and the ring tone is output as a voice. It

When the user lifts the handset or presses the incoming call button to go off-hook, the control section (control means)
24 detects this and becomes in a call state. As a result, the voice signal input by the voice input unit (microphone) 25 is sent from the voice transmitting unit 26 to the telephone line 20.
The audio signal transmitted is received by the audio receiving unit 27 and output as audio from the audio output unit 28. At the same time, the operation of the incoming call notification unit 22 is stopped.

The incoming call detection unit 21, the incoming call notification unit 22,
The ringtone output unit 23 corresponds to the ringtone generation unit, and the voice input unit 25 and the voice transmission unit 26 correspond to the voice input transmission unit. By the way, the voice signal of the ring tone output by the ring tone notification unit 22 and the voice signal output by the voice input unit 25 are supplied to the ring tone removal unit (ring tone removal means) 30. The ringtone removing unit 30 has the configuration shown in FIG.

In FIG. 2, the incoming call sound signal from the incoming call notification section 22 coming from the terminal 31 is supplied to a subtractor 34 through an FIR (finite impulse response) filter 33. Further, the audio signal from the audio input unit 25 coming into the terminal 32 is directly supplied to the subtractor 34.

The FIR filter 33 is set with a transfer function approximating the time until the voice signal of the ring tone is output from the ring tone output section 23 as the ring tone and is circulated to the voice input section 25 and converted into the voice signal. Therefore, the subtractor 34 subtracts the component of the ringing tone from the voice signal output from the voice input unit 25, removes it, and outputs it from the terminal 35. The voice signal is supplied to the incoming call response detecting unit 29.

Incoming call response detecting section (incoming call response detecting means) 29
Detects a voice response such as “Yes” from the voice signal output from the ringing tone removing unit 30 to the ringing tone, generates a detection signal at the time of detection, and supplies the detection signal to the control unit 24. When a detection signal is supplied from the incoming call response detection unit 29 at the time of an incoming call, the control unit 24 goes off-hook and connects the voice transmission unit 26 and the voice reception unit 27 to the telephone line 10.

Here, from the ring tone output section 23 to FIG.
When a ring tone shown in FIG. 3 is output and an incoming call response by voice is made at the timing overlapping with the ring tone as shown in FIG. 3B, the voice signal output from the voice input unit 25 is shown in FIG. As shown in. The ringtone removing unit 30 is shown in FIG.
The ring tone shown in FIG. 3A is removed from the voice signal of FIG. 3C to obtain the voice signal of the incoming call response shown in FIG. 3D. Since the off-hook is made by detecting the incoming call response from the voice signal of FIG. 3 (D), the user can perform the incoming call response by voice regardless of the output timing of the incoming call tone.

FIG. 4 shows a block diagram of a second embodiment of the telephone of the present invention. In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals. In FIG. 4, the incoming call detection unit 21 detects an incoming call from the telephone line 20. When receiving the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates a voice signal of a ring tone, and the voice signal of the ring tone is supplied to the ring tone output unit (speaker) 23 and the ring tone is output as a voice. It

When the user lifts the handset or presses the incoming call button to go off-hook, the control section (control means)
24 detects this and becomes in a call state. As a result, the voice signal input by the voice input unit (microphone) 25 is sent from the voice transmitting unit 26 to the telephone line 20.
The audio signal transmitted is received by the audio receiving unit 27 and output as audio from the audio output unit 28. At the same time, the operation of the incoming call notification unit 22 is stopped.

By the way, the voice signal of the ringing tone output by the voice tone notifying unit 22 and the voice signal output by the voice input unit 25 are supplied to the ringing tone removing unit 30. The ringing tone removing section 30 subtracts and removes the component of the ringing tone from the voice signal output by the voice input section 25, and supplies it to the incoming call response detecting section 39.

The incoming call response detecting section 39 detects a voice response such as "Yes" from the voice signal output from the incoming call tone removing section 30 with respect to the incoming call tone, and upon detection, generates a detection signal to the incoming call tone interruption control section 40. At the same time as the supply, the detection signal is supplied to the control unit 24 when the duration of the detection signal exceeds a predetermined value. When a detection signal is supplied from the incoming call response detection unit 29 at the time of incoming call, the control unit 24 goes off-hook and connects the voice transmission unit 26 and the voice reception unit 27 to the telephone line 20.

Ring tone interruption control unit (ring tone interruption control means)
Reference numeral 40 suspends the output of the voice signal of the ringing tone of the incoming call notifying unit 22 for a period during which the detection signal for the incoming call response is supplied or for this period and a predetermined period (for example, 1 second) subsequent thereto.
As a result, the voice signal supplied to the incoming call response detecting section 39 is completely the response voice, and the accuracy of detecting the incoming call response is improved.

If the duration of the detection signal is short, the incoming call notifying section 22 outputs the voice signal of the ringing tone again.
It is possible to prevent erroneous detection of noise such as abnormality as response voice. Here, the incoming call notification unit 22 detects the incoming call,
Originally, when the ring tone as shown in FIG. 5 (A) is output, the actual ring tone becomes the first ring tone as shown in FIG. 5 (C) by the short incoming response ack1 shown in FIG. 5 (B). RT1 is suspended. Since the incoming call response ack1 is short, the next incoming call tone RT2 is output, but the next incoming call response a
When ck2 continues for a predetermined time or longer, the ringtone RT3 is not output and the off-hook is performed.

FIG. 6 shows a block diagram of a third embodiment of the telephone of the present invention. 4, the same parts as those in FIG. 4 are denoted by the same reference numerals. In FIG. 4, the incoming call detection unit 21 detects an incoming call from the telephone line 20. When receiving the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates a voice signal of a ring tone, and the voice signal of the ring tone is supplied to the ring tone output unit (speaker) 23 and the ring tone is output as a voice. It

When the user lifts the handset or presses the incoming call button to go off-hook, the control section (control means)
24 detects this and becomes in a call state. As a result, the voice signal input by the voice input unit (microphone) 25 is sent from the voice transmitting unit 26 to the telephone line 20.
The audio signal transmitted is received by the audio receiving unit 27 and output as audio from the audio output unit 28. At the same time, the operation of the incoming call notification unit 22 is stopped.

By the way, the voice signal of the ringing tone output by the voice tone notifying unit 22 and the voice signal output by the voice input unit 25 are supplied to the ringing tone removing unit 30. The ringing tone removing section 30 subtracts the ringing tone component from the voice signal output from the voice input section 25, removes the component, and supplies it to the incoming call response detecting section 49.

The incoming call response detecting section 49 detects a voice response such as "Yes" to the incoming call tone from the voice signal output from the incoming call tone removing section 30, generates a detection signal at the time of detection, and causes the incoming call tone interruption control section 40 to generate a detection signal. Supply. At the same time, the voice signal of the voice response is supplied to the incoming call response collating unit 50 when the detection signal is generated.

The ringing tone interruption control section 40 interrupts the output of the ringing tone audio signal of the incoming call announcement section 22 during the period in which the detection signal of the incoming call response is supplied or during this period and a predetermined period (for example, 1 second) subsequent thereto. Let As a result, the voice signal supplied to the incoming call response detecting section 39 is completely the response voice, and the accuracy of detecting the incoming call response is improved.

Incoming call response collating unit (incoming call response collating means) 50
Compares the voice signal supplied from the incoming call response detection unit 49 with the voice signal of the incoming call response pattern stored in advance in the incoming call response pattern storage unit 44, and if there is a voice signal of the matching incoming call response pattern, the incoming call response is received. A detection signal is generated and supplied to the control unit 24. When an incoming call response detection signal is supplied from the incoming call response detecting section 49 at the time of incoming call, the control section 24 goes off-hook and connects the voice transmitting section 26 and the voice receiving section 27 to the telephone line 20.

As described above, since the off-hook operation is performed only when the voice signal of the incoming call response is compared with the pre-stored incoming call response pattern, the off-hook operation is performed, for example, when the telephone cannot be picked up while taking a bath. It is possible to prevent a malfunction such as erroneously off-hooking John's voice as an incoming call response.

FIG. 7 shows a block diagram of a fourth embodiment of the telephone of the present invention. In the figure, the same parts as those in FIG. 6 are designated by the same reference numerals. In FIG. 4, the incoming call detection unit 21 detects an incoming call from the telephone line 20. When receiving the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates a voice signal of a ring tone, and the voice signal of the ring tone is supplied to the ring tone output unit (speaker) 23 and the ring tone is output as a voice. It

When the user lifts the handset or presses the incoming call button to go off-hook, the control section (control means)
24 detects this and becomes in a call state. As a result, the voice signal input by the voice input unit (microphone) 25 is sent from the voice transmitting unit 26 to the telephone line 20.
The audio signal transmitted is received by the audio receiving unit 27 and output as audio from the audio output unit 28. At the same time, the operation of the incoming call notification unit 22 is stopped.

By the way, the voice signal of the ringing tone output from the voice sound notifying unit 22 and the voice signal output from the voice input unit 25 are supplied to the ringing tone removing unit 30. The ringing tone removing section 30 subtracts the ringing tone component from the voice signal output from the voice input section 25, removes the component, and supplies it to the incoming call response detecting section 49.

The incoming call response detecting section 49 detects a voice response such as "Yes" from the voice signal output from the incoming call tone removing section 30 with respect to the incoming call tone, generates a detection signal upon detection, and causes the incoming call tone interruption control section 40 to generate a detection signal. Supply. At the same time, when the detection signal is generated, the voice signal of the voice response is supplied to the incoming call response collating unit 50 and the incoming call response temporary storage unit 51.

The ringing tone interruption control unit 40 interrupts the output of the ringing tone audio signal of the incoming call announcement unit 22 for a period during which the detection signal of the incoming call response is supplied or for this period and a predetermined period (for example, 1 second) subsequent thereto. Let As a result, the voice signal supplied to the incoming call response detecting section 39 is completely the response voice, and the accuracy of detecting the incoming call response is improved.

Incoming call response collating unit (incoming call response collating means) 50
Compares the voice signal supplied from the incoming call response detection unit 49 with the voice signal of the incoming call response pattern stored in advance in the incoming call response pattern storage unit 44, and if there is a voice signal of the matching incoming call response pattern, the incoming call response is received. A detection signal is generated and supplied to the control unit 24. When an incoming call response detection signal is supplied from the incoming call response detecting section 49 at the time of incoming call, the control section 24 goes off-hook and connects the voice transmitting section 26 and the voice receiving section 27 to the telephone line 20.

The incoming call response temporary storage unit 51 temporarily stores the voice signal of the voice response supplied from the incoming call response detection unit 49. Further, the control unit 24 is supplied with the incoming call response detection signal and goes off hook, and at the same time, activates the incoming call response output unit 52. As a result, the incoming call response output unit 52 reads the voice signal of the voice response stored in the incoming call response temporary storage unit 51 and supplies it to the voice transmitting unit 26, and the voice response is transmitted to the telephone line 20. The incoming call response temporary storage section 51 and the incoming call response output section 52 correspond to the incoming call response output means.

That is, when "Hello" is responded to the ring tone, the content is directly transmitted as "Hello". As a result, the user does not have to utter “Hello” for off-hook and “Hello” after off-hook twice, which enables more natural use.

[0042]

As described above, the invention according to claim 1 is
A ring tone generation means for detecting an incoming call and outputting a ring tone, a voice input transmission means for converting an input voice into a voice signal and transmitting the voice, and a reception voice output means for converting a received voice signal into a voice and outputting the voice. In a telephone having an incoming call response detecting means for detecting a voice response to an incoming call and a control means for off-hook by detecting the incoming call response, an incoming call is received from a voice signal including a ring tone and an incoming call response obtained by the voice input transmitting means. It has a ringing tone removing means for removing the sound component and supplying it to the incoming call response detecting means.

Therefore, the voice signal for detecting the incoming call response does not include the incoming call tone component, and the voice response to the incoming call made at the timing of the incoming call tone can also be detected, and the timing can be considered hands-free. The voice response can be performed without any use, and the usability is improved.

The invention described in claim 2 is the same as claim 1
The telephone set described above has a ringing tone interruption control unit for interrupting the output of the ringing tone from the ringing tone generation unit after the voice response is detected by the ringing response detection unit. Therefore, the incoming sound does not include the ring tone, and the accuracy of detecting the voice response is improved.

The invention described in claim 3 is the same as that of claim 2
In the telephone described above, the ringtone interruption control means restarts the output of the ringtone of the ringtone generation means when the detection period of the voice response is less than a predetermined value. For this reason, if the detection period of the voice response is short, it is possible to promptly input the correct voice response again by outputting the ring tone as a false detection of noise.

The invention described in claim 4 is the same as claim 1
The above described telephone has an incoming call response collating means for comparing the voice response detected by the incoming call response detecting means with a previously stored incoming call response pattern and confirming the detection of the incoming call response when they match. For this reason, it is possible to prevent erroneous detection of a voice unrelated to the ring tone as a voice of the incoming call response, and it is possible to perform highly accurate response detection. Telephone.

According to a fifth aspect of the present invention, in the telephone set according to the first aspect, the voice response detected by the incoming response detecting means is temporarily stored, the voice response is read out after off-hook, and the voice input transmitting means is operated. It has an incoming call response output means for transmitting. Therefore, by transmitting the content of the incoming call response after off-hook, the usability is improved and natural use becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram of a telephone according to the present invention.

FIG. 2 is a block diagram of a ringtone removing unit.

FIG. 3 is a signal timing chart for explaining the circuit operation of FIG.

FIG. 4 is a block diagram of the telephone of the present invention.

5 is a signal timing chart for explaining the circuit operation of FIG.

FIG. 6 is a block diagram of a telephone of the present invention.

FIG. 7 is a block diagram of the telephone of the present invention.

FIG. 8 is a block diagram of a conventional telephone.

FIG. 9 is a block diagram of a conventional telephone.

FIG. 10 is a diagram for explaining output timing of a ring tone.

[Explanation of symbols]

 20 telephone line 21 incoming call detection unit 22 incoming call notification unit 23 incoming call output unit 24 control unit 25 voice input unit 26, 28 voice output unit 27 voice receiving unit 29, 39, 49 incoming call response detection unit 44 incoming response detection unit 50 incoming response Collating unit 51 Incoming response temporary storage unit 52 Incoming response output unit

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tomoki Sato 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Limited (72) Inventor Hitoshi Matsuzawa, 1015, Kamedotachu, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Limited

Claims (5)

[Claims] 1. A ringtone generating means for detecting an incoming call and outputting a ringtone, a voice input transmitting means for converting an input voice into a voice signal and transmitting the voice signal, and a received voice signal for outputting the voice signal after converting the voice signal. In a telephone having a received voice output means, an incoming call response detection means for detecting a voice response to an incoming call, and a control means for off-hook by detecting the incoming call response, a ring tone and an incoming call response obtained by the voice input transmission means are received. A telephone having a ringing tone removing unit that removes a ringing tone component from the included voice signal and supplies the ringing tone component to the incoming call response detecting unit. 2. The telephone according to claim 1, further comprising a ringing tone interruption control means for interrupting the output of the ringing tone from the ringing tone generating means after the incoming call response detecting means detects a voice response. Telephone to do. 3. The telephone according to claim 2, wherein the ringing tone interruption control means restarts the ringing tone output of the ringing tone generating means when the detection period of the voice response is less than a predetermined value. Telephone. 4. The telephone according to claim 1, wherein the voice response detected by the voice response detection means is compared with a voice response pattern stored in advance, and when the voice response is matched, the detection of the voice response is confirmed. A telephone having: 5. The telephone according to claim 1, further comprising an incoming call response output means for temporarily storing the voice response detected by the incoming call response detection means, reading the voice response after off-hook, and transmitting the voice response from the voice input transmission means. A telephone characterized by having.