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JP3727702B2 - Telephone - Google Patents
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JP3727702B2 - Telephone - Google Patents

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Publication number
JP3727702B2
JP3727702B2 JP34187095A JP34187095A JP3727702B2 JP 3727702 B2 JP3727702 B2 JP 3727702B2 JP 34187095 A JP34187095 A JP 34187095A JP 34187095 A JP34187095 A JP 34187095A JP 3727702 B2 JP3727702 B2 JP 3727702B2
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JP
Japan
Prior art keywords
incoming call
voice
unit
response
signal
Prior art date
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JP34187095A
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Japanese (ja)
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JPH09186757A (en
Inventor
泰 山崎
智彦 谷口
知紀 佐藤
均 松澤
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Fujitsu Ltd
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Fujitsu Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は電話機に関し、特にハンズフリー機能を持つ電話機に関する。
【0002】
【従来の技術】
図8は受話器を手に持たずに通話が可能なハンズフリー機能を持つ電話機のブロック図を示す。同図中、着信検出部11は電話回線10より着信があると、これを検出する。着信告知部12は着信検出部11の検出信号を供給されると着信音の音声信号を生成し、着信音の音声信号が着信音出力部13に供給され着信音が音声として出力される。
【0003】
利用者は受話器を持ち上げるか、又は着信ボタンを押してオフフックすると、制御部14がこれを検出し通話状態となる。これにより音声入力部15で入力された音声信号は音声送信部16より電話回線10に送出され、電話回線10を伝送された音声信号が音声受信部17で受信され、音声出力部18から音声として出力される。これと同時に着信告知部12の動作は停止させられる。
【0004】
図9は音声応答機能を持つ従来のハンズフリー電話機のブロック図を示す。同図中、図8と同一部分には同一符号を付し、その説明を省略する。図9において、着信音に対し、「はい」等の音声応答を行うと、この音声入力部15から着信応答検出部19へ供給されて検出される。この検出信号を供給された制御部14はオフフックして、音声送信部16及び音声受信部17を電話回線10と接続する。
【0005】
【発明が解決しようとする課題】
ハンズフリー電話機では両手が塞がっている場合などに非常に便利である。しかし、せっかくのハンズフリー機能を持っていても着信時に着信ボタンを押す等のオフフック動作が必要な図8に示す電話機ではその便利さも半減してしまう。
【0006】
図9に示す電話機のように音声の着信応答を検出してオフフックを行うものでは、着信音が出力されてないときに音声応答を行わなければならない。着信音は図10に示す如く、3秒周期で1秒間出力される。このため、利用者は、着信音と着信音の間の着信応答可能期間のタイミングをはかって音声応答を行わなければならず、使い勝手が悪いという問題があった。
【0007】
本発明は上記の点に鑑みなされたもので、着信音の出力時にも音声による着信応答が可能で着信応答を精度良く検出してオフフックを行う電話機を提供することを目的とする。
【0008】
【課題を解決するための手段】
請求項1に記載の発明は、着信を検出して着信音を出力する着信音発生手段と、
入力音声を音声信号に変換して送信する音声入力送信手段と、
受信した音声信号を音声に変換して出力する受信音声出力手段と、
着信に対する音声応答を検出する着信応答検出手段と、
上記着信応答の検出によりオフフックを行う制御手段とを有する電話機において、
上記音声入力送信手段で得られる着信音及び着信応答を含む音声信号から着信音成分を除去して上記着信応答検出手段に供給する着信音除去手段と、
前記着信応答検出手段で検出された音声応答を一時記憶し、オフフック後に上記音声応答を読み出して前記音声入力送信手段より送信する着信応答出力手段を有する。
【0009】
このため、着信応答検出を行う音声信号には着信音成分が含まれておらず、着信音の発生タイミングで行った着信に対する音声応答も検出することができ、ハンズフリーでタイミングを考えることなく音声応答を行うことができ、着信応答の内容をオフフック後に送信することで、使い勝手が向上し、自然な利用が可能となる。
【0014】
【発明の実施の形態】
図1は本発明の電話機の第1参考例のブロック図を示す。同図中、着信検出部21は電話回線20より着信があると、これを検出する。着信告知部22は着信検出部21の検出信号を供給されると着信音の音声信号を生成し、着信音の音声信号が着信音出力部(スピーカ)23に供給され着信音が音声として出力される。
【0015】
利用者は受話器を持ち上げるか、又は着信ボタンを押してオフフックすると、制御部(制御手段)24がこれを検出し通話状態となる。これにより音声入力部(マイクロホン)25で入力された音声信号は音声送信部26より電話回線20に送出され、電話回線20を伝送された音声信号が音声受信部27で受信され、音声出力部28から音声として出力される。これと同時に着信告知部22の動作は停止させられる。
【0016】
上記の着信検出部21、着信告知部22、着信音出力部23が着信音発生手段に対応し、音声入力部25、音声送信部26が音声入力送信手段に対応する。
ところで、着信音告知部22の出力する着信音の音声信号と、音声入力部25の出力する音声信号は着信音除去部(着信音除去手段)30に供給される。着信音除去部30は図2に示す構成である。
【0017】
図2において、端子31より入来する着信音告知部22よりの着信音の音声信号はFIR(有限インパルス応答)フィルタ33を通して減算器34に供給される。また、端子32に入来する音声入力部25よりの音声信号は直接、減算器34に供給される。
【0018】
FIRフィルタ33は着信音の音声信号が着信音出力部23から着信音として出力され音声入力部25に回り込んで音声信号に変換されるまでを近似した伝達関数が設定されている。このため、減算器34では音声入力部25の出力する音声信号から着信音の成分を減算して除去し端子35から出力し、この音声信号は着信応答検出部29に供給される。
【0019】
着信応答検出部(着信応答検出手段)29は着信音除去部30の出力する音声信号から着信音に対し、「はい」等の音声応答を検出し、検出時に検出信号を生成して制御部24に供給する。制御部24は着信時に着信応答検出部29から検出信号が供給されると、オフフックして音声送信部26及び音声受信部27を電話回線10と接続する。
【0020】
ここで、着信音出力部23から図3(A)に示す着信音が出力され、これに対して図3(B)に示す如く着信音と重なるタイミングで音声による着信応答がなされた場合、音声入力部25の出力する音声信号は図3(C)に示す如くなる。着信音除去部30は図3(C)の音声信号から図3(A)に示す着信音を除去して図3(D)に示す着信応答の音声信号を得る。この図3(D)の音声信号から着信応答を検出してオフフックがなされるため、利用者は着信音の出力タイミングに拘りなく音声による着信応答を行うことができる。
【0021】
図4は本発明の電話機の第2参考例のブロック図を示す。同図中、図1と同一部分には同一符号を付す。図4において、着信検出部21は電話回線20より着信があると、これを検出する。着信告知部22は着信検出部21の検出信号を供給されると着信音の音声信号を生成し、着信音の音声信号が着信音出力部(スピーカ)23に供給され着信音が音声として出力される。
【0022】
利用者は受話器を持ち上げるか、又は着信ボタンを押してオフフックすると、制御部(制御手段)24がこれを検出し通話状態となる。これにより音声入力部(マイクロホン)25で入力された音声信号は音声送信部26より電話回線20に送出され、電話回線20を伝送された音声信号が音声受信部27で受信され、音声出力部28から音声として出力される。これと同時に着信告知部22の動作は停止させられる。
【0023】
ところで、音声音告知部22の出力する着信音の音声信号と、音声入力部25の出力する音声信号は着信音除去部30に供給される。着信音除去部30は音声入力部25の出力する音声信号から着信音の成分を減算して除去し着信応答検出部39に供給する。
【0024】
着信応答検出部39は着信音除去部30の出力する音声信号から着信音に対し、「はい」等の音声応答を検出し、検出時には検出信号を生成し着信音中断制御部40に供給すると共に、上記検出信号の継続時間が所定値を超えたときに、この検出信号を制御部24に供給する。制御部24は着信時に着信応答検出部29から検出信号が供給されると、オフフックして音声送信部26及び音声受信部27を電話回線20と接続する。
【0025】
着信音中断制御部(着信音中断制御手段)40は、着信応答の検出信号を供給されている期間又はこの期間及びそれに続く所定期間(例えば1秒)だけ着信告知部22の着信音の音声信号が出力を中断させる。これによって着信応答検出部39に供給される音声信号は完全に応答音声だけとなり着信応答の検出精度が向上する。
【0026】
また、検出信号の継続時間が短かければ着信告知部22は再び着信音の音声信号を出力するため、異常等のノイズを応答音声として誤検出することを防止できる。
ここで、着信検出によって着信告知部22が、本来、図5(A)に示す如き着信音が出力される場合において、図5(B)に示す短かい着信応答ack1によって実際の着信音は図5(C)に示す如く、最初の着信音RT1は中断される。着信応答ack1が短かいため、次の着信音RT2は出力されるが、次の着信応答ack2が所定時間以上継続すると着信音RT3は出力されず、オフフックが行われる。
【0027】
図6は本発明の電話機の第3参考例のブロック図を示す。同図中、図4と同一部分には同一符号を付す。図4において、着信検出部21は電話回線20より着信があると、これを検出する。着信告知部22は着信検出部21の検出信号を供給されると着信音の音声信号を生成し、着信音の音声信号が着信音出力部(スピーカ)23に供給され着信音が音声として出力される。
【0028】
利用者は受話器を持ち上げるか、又は着信ボタンを押してオフフックすると、制御部(制御手段)24がこれを検出し通話状態となる。これにより音声入力部(マイクロホン)25で入力された音声信号は音声送信部26より電話回線20に送出され、電話回線20を伝送された音声信号が音声受信部27で受信され、音声出力部28から音声として出力される。これと同時に着信告知部22の動作は停止させられる。
【0029】
ところで、音声音告知部22の出力する着信音の音声信号と、音声入力部25の出力する音声信号は着信音除去部30に供給される。着信音除去部30は音声入力部25の出力する音声信号から着信音の成分を減算して除去し着信応答検出部49に供給する。
【0030】
着信応答検出部49は着信音除去部30の出力する音声信号から着信音に対し、「はい」等の音声応答を検出し、検出時には検出信号を生成し着信音中断制御部40に供給する。これと共に、検出信号生成時には音声応答の音声信号を着信応答照合部50に供給する。
【0031】
着信音中断制御部40は、着信応答の検出信号を供給されている期間又はこの期間及びそれに続く所定期間(例えば1秒)だけ着信告知部22の着信音の音声信号が出力を中断させる。これによって着信応答検出部39に供給される音声信号は完全に応答音声だけとなり着信応答の検出精度が向上する。
【0032】
着信応答照合部(着信応答照合手段)50は、着信応答検出部49から供給される音声信号を着信応答パターン記憶部44に予め記憶されている着信応答パターンの音声信号と比較して、一致する着信応答パターンの音声信号があれば着信応答検出信号を生成して制御部24に供給する。制御部24は着信時に着信応答検出部49から着信応答検出信号が供給されると、オフフックして音声送信部26及び音声受信部27を電話回線20と接続する。
【0033】
このように、着信応答の音声信号を予め記憶されている着信応答パターンと比較して一致した場合にのみオフフックを行うため、例えば入浴中等の電話を取れない場合に、受信中のテレビジョンの音声を着信応答と誤ってオフフックする等の誤動作を防止できる。
【0034】
図7は本発明の電話機の一実施例のブロック図を示す。同図中、図6と同一部分には同一符号を付す。図4において、着信検出部21は電話回線20より着信があると、これを検出する。着信告知部22は着信検出部21の検出信号を供給されると着信音の音声信号を生成し、着信音の音声信号が着信音出力部(スピーカ)23に供給され着信音が音声として出力される。
【0035】
利用者は受話器を持ち上げるか、又は着信ボタンを押してオフフックすると、制御部(制御手段)24がこれを検出し通話状態となる。これにより音声入力部(マイクロホン)25で入力された音声信号は音声送信部26より電話回線20に送出され、電話回線20を伝送された音声信号が音声受信部27で受信され、音声出力部28から音声として出力される。これと同時に着信告知部22の動作は停止させられる。
【0036】
ところで、音声音告知部22の出力する着信音の音声信号と、音声入力部25の出力する音声信号は着信音除去部30に供給される。着信音除去部30は音声入力部25の出力する音声信号から着信音の成分を減算して除去し着信応答検出部49に供給する。
【0037】
着信応答検出部49は着信音除去部30の出力する音声信号から着信音に対し、「はい」等の音声応答を検出し、検出時には検出信号を生成し着信音中断制御部40に供給する。これと共に、検出信号生成時には音声応答の音声信号を着信応答照合部50及び着信応答一時記憶部51に供給する。
【0038】
着信音中断制御部40は、着信応答の検出信号を供給されている期間又はこの期間及びそれに続く所定期間(例えば1秒)だけ着信告知部22の着信音の音声信号が出力を中断させる。これによって着信応答検出部39に供給される音声信号は完全に応答音声だけとなり着信応答の検出精度が向上する。
【0039】
着信応答照合部(着信応答照合手段)50は、着信応答検出部49から供給される音声信号を着信応答パターン記憶部44に予め記憶されている着信応答パターンの音声信号と比較して、一致する着信応答パターンの音声信号があれば着信応答検出信号を生成して制御部24に供給する。制御部24は着信時に着信応答検出部49から着信応答検出信号が供給されると、オフフックして音声送信部26及び音声受信部27を電話回線20と接続する。
【0040】
着信応答一時記憶部51は着信応答検出部49から供給される音声応答の音声信号を一時的に記憶する。また、制御部24は着信応答検出信号を供給されてオフフックすると同時に着信応答出力部52を起動する。これにより着信応答出力部52は着信応答一時記憶部51に記憶されている音声応答の音声信号を読み出して音声送信部26に供給し、音声応答が電話回線20に送信される。上記の着信応答一時記憶部51及び着信応答出力部52が着信応答出力手段に対応する。
【0041】
つまり、着信音に対して「もしもし」と応答すると、この内容をそのまま「もしもし」と送信する。これにより利用者はオフフックのための「もしもし」とオフフック後の「もしもし」と2回発声する必要がなく、より自然な利用が可能となる。
【0042】
【発明の効果】
上述の如く、請求項1に記載の発明によれば、着信応答検出を行う音声信号には着信音成分が含まれておらず、着信音の発生タイミングで行った着信に対する音声応答も検出することができ、ハンズフリーでタイミングを考えることなく音声応答を行うことができ、着信応答の内容をオフフック後に送信することで、使い勝手が向上し、自然な利用が可能となる。
【図面の簡単な説明】
【図1】本発明の電話機のブロック図である。
【図2】着信音除去部のブロック図である。
【図3】図1の回路動作を説明するための信号タイミングチャートである。
【図4】本発明の電話機のブロック図である。
【図5】図4の回路動作を説明するための信号タイミングチャートである。
【図6】本発明の電話機のブロック図である。
【図7】本発明の電話機のブロック図である。
【図8】従来の電話機のブロック図である。
【図9】従来の電話機のブロック図である。
【図10】着信音の出力タイミングを説明するための図である。
【符号の説明】
20 電話回線
21 着信検出部
22 着信告知部
23 着信音出力部
24 制御部
25 音声入力部
26,28 音声出力部
27 音声受信部
29,39,49 着信応答検出部
44 着信応答検出部
50 着信応答照合部
51 着信応答一時記憶部
52 着信応答出力部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a telephone, and more particularly to a telephone having a hands-free function.
[0002]
[Prior art]
FIG. 8 shows a block diagram of a telephone having a hands-free function capable of making a call without holding the handset. In the figure, the incoming call detection unit 11 detects an incoming call from the telephone line 10. When the incoming call notification unit 12 is supplied with the detection signal from the incoming call detection unit 11, the incoming call notification unit 12 generates an incoming call audio signal. The incoming call audio signal is supplied to the incoming call output unit 13, and the incoming call tone is output as voice.
[0003]
When the user lifts the handset or presses the incoming call button to go off-hook, the control unit 14 detects this and enters a call state. As a result, the voice signal input by the voice input unit 15 is transmitted from the voice transmission unit 16 to the telephone line 10, the voice signal transmitted through the telephone line 10 is received by the voice reception unit 17, and is sent 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.
[0004]
FIG. 9 shows a block diagram of a conventional hands-free telephone having a voice response function. In the figure, the same parts as those in FIG. In FIG. 9, when a voice response such as “Yes” is made to the incoming call sound, the voice input unit 15 supplies the incoming call response to the incoming call response detection unit 19 for detection. The control unit 14 supplied with the detection signal goes off-hook and connects the voice transmission unit 16 and the voice reception unit 17 to the telephone line 10.
[0005]
[Problems to be solved by the invention]
Hands-free telephones are very convenient when both hands are closed. However, even if it has a special hands-free function, the convenience of the telephone shown in FIG.
[0006]
In the case of detecting a voice incoming response and performing off-hook like the telephone shown in FIG. 9, a voice response must be made when no ring tone is output. As shown in FIG. 10, the ring tone is output for 1 second at a cycle of 3 seconds. For this reason, the user has to perform a voice response in accordance with the timing of the incoming call response possible period between the ringtones, and there is a problem that the user experience is poor.
[0007]
The present invention has been made in view of the above points, and an object of the present invention is to provide a telephone that can perform an incoming call response by voice even when a ringtone is output, accurately detect the incoming call response, and perform off-hook.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is a ring tone generation means for detecting an incoming call and outputting a ring tone;
Voice input transmission means for converting the input voice into a voice signal and transmitting the voice signal;
Received voice output means for converting the received voice signal into voice and outputting the voice;
An incoming call response detection means for detecting a voice response to an incoming call;
In a telephone having control means for performing off-hook by detecting the incoming call response,
A ring tone removing means for removing the ring tone component from the voice signal including the ring tone and the incoming call response obtained by the voice input transmitting means and supplying the incoming call response detecting means ;
A voice response detected by the incoming call response detection means, temporarily stored, and after receiving an off-hook, the voice response is read out and transmitted from the voice input transmission means .
[0009]
For this reason, the audio signal for detecting the incoming call response does not contain the ringing tone component, and the audio response to the incoming call made at the timing of the incoming ring tone can be detected. A response can be made, and the content of the incoming call response is transmitted after being off-hook, so that the usability is improved and natural use is possible.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a block diagram of a first reference example of the telephone of the present invention. In FIG. 2, when there is an incoming call from the telephone line 20, the incoming call detection unit 21 detects this. When the incoming call notification unit 22 is supplied with the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates an incoming call audio signal. The incoming call audio signal is supplied to the incoming call tone output unit (speaker) 23, and the incoming call tone is output as audio. The
[0015]
When the user lifts the handset or presses the incoming call button to go off-hook, the control unit (control means) 24 detects this and enters a call state. As a result, the audio signal input from the audio input unit (microphone) 25 is transmitted from the audio transmission unit 26 to the telephone line 20, and the audio signal transmitted through the telephone line 20 is received by the audio reception unit 27, and the audio output unit 28. Is output as audio. At the same time, the operation of the incoming call notification unit 22 is stopped.
[0016]
The incoming call detection unit 21, the incoming call notification unit 22, and the incoming call tone output unit 23 correspond to the incoming call sound 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 ringtone output from the ringtone notification unit 22 and the voice signal output from the voice input unit 25 are supplied to the ringtone removal unit (ringtone removal unit) 30. The ring tone removing unit 30 has the configuration shown in FIG.
[0017]
In FIG. 2, the incoming call sound signal from the incoming call sound notification unit 22 coming from the terminal 31 is supplied to the subtractor 34 through the FIR (finite impulse response) filter 33. The audio signal from the audio input unit 25 that enters the terminal 32 is directly supplied to the subtractor 34.
[0018]
The FIR filter 33 is set with a transfer function that approximates the time until the voice signal of the ringtone is output as the ringtone from the ringtone output unit 23, wraps around the voice input unit 25, and is converted into a voice signal. For this reason, the subtractor 34 subtracts and removes the ringing tone component from the voice signal output from the voice input unit 25 and outputs it from the terminal 35, and this voice signal is supplied to the incoming call response detection unit 29.
[0019]
The incoming call response detection unit (incoming response detection means) 29 detects a voice response such as “yes” to the incoming call tone from the audio signal output from the incoming call tone removal unit 30, and generates a detection signal at the time of detection to generate a detection signal. To supply. When a detection signal is supplied from the incoming call response detection unit 29 when an incoming call is received, 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.
[0020]
Here, when the ring tone shown in FIG. 3 (A) is output from the ring tone output unit 23 and an incoming call response is made at a timing overlapping with the ring tone as shown in FIG. The audio signal output from the input unit 25 is as shown in FIG. The ring tone removing unit 30 removes the ring tone shown in FIG. 3A from the voice signal shown in FIG. 3C to obtain an incoming call response voice signal shown in FIG. Since the incoming call response is detected from the audio signal of FIG. 3D and off-hook is performed, the user can make an incoming call response by voice regardless of the output timing of the incoming call tone.
[0021]
FIG. 4 shows a block diagram of a second reference example of the telephone of the present invention. In the figure, the same parts as those in FIG. In FIG. 4, when there is an incoming call from the telephone line 20, the incoming call detection unit 21 detects this. When the incoming call notification unit 22 is supplied with the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates an incoming call audio signal. The incoming call audio signal is supplied to the incoming call tone output unit (speaker) 23, and the incoming call tone is output as audio. The
[0022]
When the user lifts the handset or presses the incoming call button to go off-hook, the control unit (control means) 24 detects this and enters a call state. As a result, the audio signal input from the audio input unit (microphone) 25 is transmitted from the audio transmission unit 26 to the telephone line 20, and the audio signal transmitted through the telephone line 20 is received by the audio reception unit 27, and the audio output unit 28. Is output as audio. At the same time, the operation of the incoming call notification unit 22 is stopped.
[0023]
By the way, the voice signal of the ringtone output from the voice sound notification unit 22 and the voice signal output from the voice input unit 25 are supplied to the ringtone removal unit 30. The ring tone removing unit 30 subtracts and removes the ring tone component from the voice signal output from the voice input unit 25 and supplies it to the incoming call response detecting unit 39.
[0024]
The incoming call response detection unit 39 detects a voice response such as “Yes” from the voice signal output from the ringtone removal unit 30 to the ringtone, generates a detection signal at the time of detection, and supplies it to the ringtone interruption control unit 40. When the duration of the detection signal exceeds a predetermined value, the detection signal is supplied to the control unit 24. When a detection signal is supplied from the incoming call response detection unit 29 when an incoming call is received, 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.
[0025]
The ringing tone interruption control unit (ringing tone interruption control means) 40 is a voice signal of the ringing tone of the incoming call notification unit 22 only during a period in which a detection signal of an incoming call response is supplied or during this period and a predetermined period (for example, 1 second). Interrupts the output. As a result, the voice signal supplied to the incoming call response detection unit 39 is completely only the response voice, and the detection accuracy of the incoming call response is improved.
[0026]
In addition, if the duration of the detection signal is short, the incoming call notification unit 22 outputs the sound signal of the ringing tone again, and thus it is possible to prevent erroneous detection of noise such as abnormality as response sound.
Here, when the incoming call notification unit 22 originally outputs the ring tone as shown in FIG. 5A by detecting the incoming call, the actual ring tone is shown by the short incoming response ack1 shown in FIG. 5B. As shown in FIG. 5 (C), the first ring tone RT1 is interrupted. Since the incoming response ack1 is short, the next incoming tone RT2 is output, but when the next incoming incoming response ack2 continues for a predetermined time or longer, the incoming tone RT3 is not output and an off-hook is performed.
[0027]
FIG. 6 shows a block diagram of a third reference example of the telephone of the present invention. In the figure, the same parts as those in FIG. In FIG. 4, when there is an incoming call from the telephone line 20, the incoming call detection unit 21 detects this. When the incoming call notification unit 22 is supplied with the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates an incoming call audio signal. The incoming call audio signal is supplied to the incoming call tone output unit (speaker) 23, and the incoming call tone is output as audio. The
[0028]
When the user lifts the handset or presses the incoming call button to go off-hook, the control unit (control means) 24 detects this and enters a call state. As a result, the audio signal input from the audio input unit (microphone) 25 is transmitted from the audio transmission unit 26 to the telephone line 20, and the audio signal transmitted through the telephone line 20 is received by the audio reception unit 27, and the audio output unit 28. Is output as audio. At the same time, the operation of the incoming call notification unit 22 is stopped.
[0029]
By the way, the voice signal of the ringtone output from the voice sound notification unit 22 and the voice signal output from the voice input unit 25 are supplied to the ringtone removal unit 30. The ring tone removing unit 30 subtracts and removes the ring tone component from the voice signal output from the voice input unit 25 and supplies it to the incoming call response detecting unit 49.
[0030]
The incoming call response detection unit 49 detects a voice response such as “Yes” to the incoming call tone from the audio signal output from the incoming call tone removal unit 30, generates a detection signal upon detection, and supplies it to the incoming call tone interruption control unit 40. At the same time, the voice response voice signal is supplied to the incoming call response verification unit 50 when the detection signal is generated.
[0031]
The ringing tone interruption control unit 40 interrupts the output of the sound signal of the ringing tone of the incoming call notification unit 22 during the period in which the detection signal of the incoming call response is supplied or during this period and the predetermined period (for example, 1 second). As a result, the voice signal supplied to the incoming call response detection unit 39 is completely only the response voice, and the detection accuracy of the incoming call response is improved.
[0032]
The incoming call response verification unit (incoming response verification unit) 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 so as to match. If there is a voice signal of the incoming call response pattern, an incoming call response detection signal is generated and supplied to the control unit 24. When the incoming call response detection signal is supplied from the incoming call response detection unit 49 when an incoming call is received, 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.
[0033]
In this way, since the incoming call response audio signal is compared with the pre-stored incoming call response pattern so that it goes off-hook, for example, when the telephone cannot be picked up, such as during bathing, the audio of the television being received It is possible to prevent malfunctions such as off-hooking erroneously with an incoming call response.
[0034]
FIG. 7 shows a block diagram of an embodiment of the telephone of the present invention. In the figure, the same parts as those in FIG. In FIG. 4, when there is an incoming call from the telephone line 20, the incoming call detection unit 21 detects this. When the incoming call notification unit 22 is supplied with the detection signal of the incoming call detection unit 21, the incoming call notification unit 22 generates an incoming call audio signal. The incoming call audio signal is supplied to the incoming call tone output unit (speaker) 23, and the incoming call tone is output as audio. The
[0035]
When the user lifts the handset or presses the incoming call button to go off-hook, the control unit (control means) 24 detects this and enters a call state. As a result, the audio signal input from the audio input unit (microphone) 25 is transmitted from the audio transmission unit 26 to the telephone line 20, and the audio signal transmitted through the telephone line 20 is received by the audio reception unit 27, and the audio output unit 28. Is output as audio. At the same time, the operation of the incoming call notification unit 22 is stopped.
[0036]
By the way, the voice signal of the ringtone output from the voice sound notification unit 22 and the voice signal output from the voice input unit 25 are supplied to the ringtone removal unit 30. The ring tone removing unit 30 subtracts and removes the ring tone component from the voice signal output from the voice input unit 25 and supplies it to the incoming call response detecting unit 49.
[0037]
The incoming call response detection unit 49 detects a voice response such as “Yes” to the incoming call tone from the audio signal output from the incoming call tone removal unit 30, generates a detection signal upon detection, and supplies it to the incoming call tone interruption control unit 40. At the same time, the voice signal of the voice response is supplied to the incoming response verification unit 50 and the incoming response temporary storage unit 51 when the detection signal is generated.
[0038]
The ringing tone interruption control unit 40 interrupts the output of the sound signal of the ringing tone of the incoming call notification unit 22 during the period in which the detection signal of the incoming call response is supplied or during this period and the predetermined period (for example, 1 second). As a result, the voice signal supplied to the incoming call response detection unit 39 is completely only the response voice, and the detection accuracy of the incoming call response is improved.
[0039]
The incoming call response verification unit (incoming response verification unit) 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 so as to match. If there is a voice signal of the incoming call response pattern, an incoming call response detection signal is generated and supplied to the control unit 24. When the incoming call response detection signal is supplied from the incoming call response detection unit 49 when an incoming call is received, 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.
[0040]
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 out the voice signal of the voice response stored in the incoming response temporary storage unit 51 and supplies it to the voice transmission unit 26, and the voice response is transmitted to the telephone line 20. The incoming response temporary storage unit 51 and the incoming response output unit 52 correspond to incoming response output means.
[0041]
In other words, if "Moshi" is responded to the ring tone, this content is transmitted as "Moshi" as it is. As a result, the user does not have to say “Hello” for off-hook and “Hello” after off-hook twice, and more natural use is possible.
[0042]
【The invention's effect】
As described above , according to the first aspect of the present invention , the voice signal for detecting the incoming call response does not include the ring tone component, and the voice response to the incoming call made at the timing of the incoming ring tone is also detected. It is possible to perform a voice response without considering the timing in a hands-free manner, and by transmitting the content of the incoming response after being 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. 1;
FIG. 4 is a block diagram of the telephone of the present invention.
FIG. 5 is a signal timing chart for explaining the circuit operation of FIG. 4;
FIG. 6 is a block diagram of the telephone of the present invention.
FIG. 7 is a block diagram of a telephone according to 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 an output timing of a ringtone.
[Explanation of symbols]
20 Telephone line 21 Incoming call detection unit 22 Incoming call notification unit 23 Incoming sound output unit 24 Control unit 25 Voice input unit 26, 28 Audio output unit 27 Voice receiving unit 29, 39, 49 Incoming response detection unit 44 Incoming response detection unit 50 Incoming response Verification unit 51 Incoming response temporary storage unit 52 Incoming response output unit

Claims (1)

着信を検出して着信音を出力する着信音発生手段と、
入力音声を音声信号に変換して送信する音声入力送信手段と、
受信した音声信号を音声に変換して出力する受信音声出力手段と、
着信に対する音声応答を検出する着信応答検出手段と、
上記着信応答の検出によりオフフックを行う制御手段とを有する電話機において、
上記音声入力送信手段で得られる着信音及び着信応答を含む音声信号から着信音成分を除去して上記着信応答検出手段に供給する着信音除去手段と、
前記着信応答検出手段で検出された音声応答を一時記憶し、オフフック後に上記音声応答を読み出して前記音声入力送信手段より送信する着信応答出力手段を有することを特徴とする電話機。
A ring tone generating means for detecting an incoming call and outputting a ring tone;
Voice input transmission means for converting the input voice into a voice signal and transmitting the voice signal;
Received voice output means for converting the received voice signal into voice and outputting the voice;
An incoming call response detection means for detecting a voice response to an incoming call;
In a telephone having control means for performing off-hook by detecting the incoming call response,
A ring tone removing means for removing the ring tone component from the voice signal including the ring tone and the incoming call response obtained by the voice input transmitting means and supplying the incoming call response detecting means ;
A telephone 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 being off-hook, and transmitting the voice response from the voice input transmission means .
JP34187095A 1995-12-27 1995-12-27 Telephone Expired - Fee Related JP3727702B2 (en)

Priority Applications (1)

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JP2000138736A (en) * 1998-11-02 2000-05-16 Brother Ind Ltd Communication device
JP4540600B2 (en) * 2005-12-20 2010-09-08 富士通株式会社 Voice detection apparatus and voice detection method
JP5763117B2 (en) 2013-03-25 2015-08-12 京セラ株式会社 Portable electronic device, control method and control program
JP6397055B2 (en) * 2015-01-16 2018-09-26 株式会社Nttドコモ Communication terminal device, incoming call control method, and program

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