JP2008271481A - Telephone apparatus - Google Patents

Telephone apparatus Download PDF

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JP2008271481A
JP2008271481A JP2007118609A JP2007118609A JP2008271481A JP 2008271481 A JP2008271481 A JP 2008271481A JP 2007118609 A JP2007118609 A JP 2007118609A JP 2007118609 A JP2007118609 A JP 2007118609A JP 2008271481 A JP2008271481 A JP 2008271481A
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noise
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Katsuhiro Sato
克博 佐藤
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Brother Industries Ltd
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Brother Industries Ltd
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<P>PROBLEM TO BE SOLVED: To provide a telephone apparatus which allows a user to perform denoising adjustment while verifying effect of denoising. <P>SOLUTION: User's own transmitting voice signal is back-flowed by switching a switching part 140 and, while hearing his or her own voice, noise characteristic to be removed in noise removing parts 130, 230 are adjusted. Furthermore, not only back-flowing his or her own voice, post-denoising spectrum is checked at display parts 180, 280. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、電話装置に関する。   The present invention relates to a telephone device.

電話装置においては、送話者の音声信号を伝達する際に、一般に送話者の音声と一緒に、送話者の音声以外のノイズも伝達されてしまうが、これをできるだけ抑制することが通話品質を高くするために望まれる。この問題の解決を難しくする点は、ノイズの特性が時間とともに、あるいは周囲の状況とともに変わることである。したがってノイズ除去を行う際に何らかのかたちの調節機能を持たせることが必要となる。   In a telephone device, when transmitting the voice signal of the talker, noise other than the voice of the talker is generally transmitted along with the voice of the talker. It is desirable to increase the quality. The difficulty in solving this problem is that the characteristics of the noise change over time or with the surrounding conditions. Therefore, it is necessary to provide some form of adjustment function when removing noise.

例えば、特許文献１では、ノイズを除去するためのノイズキャンセラを２つ用意して、それらを背景ノイズが多いか少ないかに応じて切り替える装置が開示されている。２つのノイズキャンセラは一方がＳＰＡＣ方式であり、もう一方がカルマンフィルタであり、両者の切替方法として手動と自動の２つの方法が示されている。   For example, Patent Document 1 discloses an apparatus in which two noise cancellers for removing noise are prepared and switched according to whether the background noise is high or low. One of the two noise cancellers is a SPAC system, and the other is a Kalman filter. Two methods, manual and automatic, are shown as switching methods between the two.

特開平１１−３３８４９９号公報JP 11-338499 A

しかし、切替が手動であっても自動であっても、閾値を設定して、背景雑音のレベルがその閾値より大きいか小さいかでノイズキャンセラを切り替えている。そして、上記特許文献１で示された閾値の設定方法が最適であるという客観的な根拠はない。したがって、同文献の装置において常に最適なノイズキャンセラが選択される保証はない。   However, whether the switching is manual or automatic, a threshold is set, and the noise canceller is switched depending on whether the background noise level is larger or smaller. There is no objective basis that the threshold setting method disclosed in Patent Document 1 is optimal. Therefore, there is no guarantee that the optimum noise canceller is always selected in the apparatus of the document.

同文献の装置に限らず、背景ノイズや音声信号の特性は不明か、既知であっても時間とともにあるいは状況とともに変動するので、ノイズキャンセラを客観的、理論的な観点から常に最適なものとすることは一般に難しいと考えられる。したがって、使用者による主観的な判断を利用しながらより信頼性の高いノイズ除去が可能な電話装置を開発することには実用上大きな意味がある。   The noise canceller is always optimal from an objective and theoretical point of view because the characteristics of the background noise and audio signal are not limited to the devices described in this document, and even if known, they vary with time or with circumstances. Is generally considered difficult. Therefore, it is practically significant to develop a telephone device capable of removing noise with higher reliability while utilizing subjective judgment by the user.

そこで本発明では、使用者がノイズ除去の効果を確認しながらノイズ除去の調節を行うことが可能な電話装置を提供することを目的とする。   Accordingly, an object of the present invention is to provide a telephone device that allows a user to adjust noise removal while confirming the effect of noise removal.

課題を解決するための手段及び発明の効果Means for Solving the Problems and Effects of the Invention

上記課題を解決するために、本発明の請求項１に記載の通信装置は、入力される音声を送話信号として外部の回線網へと送信する送話部と、前記外部の回線網からの受話信号を音声として出力する受話部とを備えた電話装置であって、除去すべきノイズ特性を設定するための除去ノイズ特性設定手段と、その除去ノイズ特性設定手段により設定されたノイズ特性に基づいて、前記送話部に入力される前記送話信号からその送話信号に含まれるノイズを除去するノイズ除去手段と、そのノイズ除去手段によってノイズを除去された後の信号を音声として前記受話部に出力するノイズ除去音声出力手段とを備えたことを特徴とする。   In order to solve the above-described problem, a communication apparatus according to claim 1 of the present invention includes a transmission unit that transmits input voice as an outgoing signal to an external circuit network, and an external circuit network. A telephone device including a receiver that outputs a received signal as speech, based on a noise characteristic set by a noise removal characteristic setting unit for setting a noise characteristic to be removed, and a noise characteristic set by the noise removal characteristic setting unit Noise removing means for removing noise contained in the transmission signal from the transmission signal input to the transmission section, and the reception section using the signal after the noise is removed by the noise removal means as speech. And a noise-removed sound output means for outputting to the sound.

請求項１に記載の電話装置によれば、ノイズ除去手段が除去ノイズ特性設定手段により設定されたノイズ特性に基づいて、送話部に入力される送話信号からその送話信号に含まれるノイズを除去し、ノイズ除去音声出力手段がノイズ除去手段によってノイズを除去された後の信号を音声として受話部に出力するので、装置の使用者は、ノイズ除去後の音声を聞きながら、除去ノイズ特性設定手段を用いて、除去すべきノイズ特性を試行錯誤的に最適に設定することができる。したがって、微小な音声をノイズとともに除去してしまうといった不具合の起きる可能性が低減できるとの効果を奏する。さらに、装置の使用者はノイズ除去を施されて通話相手側に伝わる自分の音声を、事前に自分の耳で聞いて確認することができる。したがって、どのような音声が通話相手側に伝わっているかが不明であった従来装置と比べて、使用者のノイズ除去に対する信頼性が高い電話装置となるとの効果も奏する。   According to the telephone device of claim 1, the noise included in the transmission signal from the transmission signal input to the transmission unit based on the noise characteristic set by the noise removal unit by the removal noise characteristic setting unit. The noise removal voice output means outputs the signal from which noise has been removed by the noise removal means to the receiver as voice, so that the user of the device can remove the noise characteristic while listening to the voice after noise removal. Using the setting means, the noise characteristic to be removed can be optimally set by trial and error. Therefore, there is an effect that it is possible to reduce the possibility of a problem such as removing minute sound together with noise. In addition, the user of the apparatus can confirm in advance his / her voice transmitted to the other party of the call after noise removal with his / her ear. Therefore, as compared with the conventional apparatus in which what kind of voice is transmitted to the other party is unknown, there is an effect that the telephone apparatus is more reliable for removing noise from the user.

本発明の請求項２に記載の電話装置は、請求項１に記載の電話装置を前提として、前記送話部は、入力される前記送話信号を送話側信号経路を介して前記外部の回線網へ送信し、前記受話部は、前記外部の回線網からの前記受話信号を受話側信号経路を介して出力し、前記送話側信号経路と前記受話側信号経路とをそれぞれ前記回線網と接続する通常接続状態と、前記送話側信号経路及び前記受話側信号経路の前記回線網との接続を遮断し、前記送話側信号経路と前記受話側信号経路とを接続して、前記送話側信号経路を伝送された前記送話信号を前記受話側信号経路へと還流させる還流接続状態との間での接続を切り替える切替手段を備えたことを特徴とする。   According to a second aspect of the present invention, on the premise of the telephone device according to the first aspect, the transmitter transmits the input transmission signal to the external signal via a transmission side signal path. Transmitting to the line network, and the receiving unit outputs the received signal from the external line network via a receiving side signal path, and the transmitting side signal path and the receiving side signal path are respectively transmitted to the line network. The normal connection state to connect with, disconnect the connection of the transmission side signal path and the reception side signal path with the circuit network, connect the transmission side signal path and the reception side signal path, and It is characterized by comprising switching means for switching the connection between the reflux connection state in which the transmission signal transmitted through the transmission side signal path is returned to the reception side signal path.

請求項２に記載の電話装置によれば、切替手段が、送話側信号経路と受話側信号経路とをそれぞれ回線網と接続する通常接続状態と、送話側信号経路及び受話側信号経路の回線網との接続を遮断し、送話側信号経路と受話側信号経路とを接続して、送話側信号経路を介して送信された送話信号を受話側信号経路へと還流させる還流接続状態との間で接続を切り替えるので、簡単な構成で請求項１に係る発明の効果を達成できる。   According to the telephone device of the second aspect, the switching means includes the normal connection state in which the transmission side signal path and the reception side signal path are respectively connected to the network, and the transmission side signal path and the reception side signal path. Reflux connection that cuts off the connection to the line network, connects the transmission side signal path and the reception side signal path, and returns the transmission signal transmitted via the transmission side signal path to the reception side signal path Since the connection is switched between the states, the effect of the invention according to claim 1 can be achieved with a simple configuration.

本発明の請求項３に記載の電話装置は、請求項１または２に記載の電話装置を前提として、前記ノイズ除去手段によってノイズを除去された後の信号のスペクトラムを算出する算出手段と、前記算出手段によって算出された前記信号のスペクトラムを表示する表示手段とを備えたことを特徴とする。   According to a third aspect of the present invention, on the premise of the telephone device according to the first or second aspect, a calculating unit that calculates a spectrum of a signal after noise is removed by the noise removing unit, Display means for displaying the spectrum of the signal calculated by the calculation means.

請求項３に記載の電話装置によれば、ノイズ除去後の送話信号のスペクトラムを表示手段によって確認できるので、使用者は、ノイズ除去を施された音声を自分の耳で聞くことに加えて、さらにそのスペクトラムを自分の目で見ることによってノイズ除去の効果を確かめながら、ノイズ除去手段のノイズ除去特性を試行錯誤的に最適なものへと設定できる。したがって、使用者の聴覚と視覚による二重の確認を用いることにより、ノイズ除去効果の確認がなかった従来の装置と比較して、上でも述べた微小な音声をノイズとともに除去してしまうといった不具合の起きる可能性がさらに減少して最適なノイズ除去が達成できるとの効果を奏する。   According to the telephone device of the third aspect, since the spectrum of the transmission signal after noise removal can be confirmed by the display means, the user can listen to the noise-removed voice with his / her ear. Furthermore, the noise removal characteristic of the noise removal means can be set to an optimal one by trial and error while confirming the noise removal effect by viewing the spectrum with one's own eyes. Therefore, by using double confirmation by the user's auditory and visual, compared with the conventional device that did not confirm the noise removal effect, the above-mentioned inconvenience of removing the minute voice together with noise As a result, the possibility of occurrence of noise is further reduced and optimum noise removal can be achieved.

本発明の請求項４に記載の電話装置は、請求項１または２に記載の電話装置を前提として、前記電話装置は、外部と通信可能な親機と、その親機と無線通信可能であって、その親機を介して外部と通信可能な子機とから構成され、前記送話部、前記受話部及び前記除去ノイズ特性設定手段は、前記子機に搭載されていることを特徴とする。   According to a fourth aspect of the present invention, on the premise of the telephone device according to the first or second aspect, the telephone device is capable of communicating with the parent device capable of communicating with the outside and wirelessly communicating with the parent device. The transmission unit, the reception unit, and the removal noise characteristic setting means are mounted on the slave unit, the slave unit being communicable with the outside through the master unit. .

請求項４に記載の電話装置によれば、子機に送話部、受話部及び除去ノイズ特性設定手段が搭載されているので、移動可能な子機の周りの環境においても、ノイズ除去後の音声を聞きながら、除去ノイズ特性設定手段を用いて、除去すべきノイズ特性を試行錯誤的に最適に設定することができる。   According to the telephone device of the fourth aspect, since the transmitting unit, the receiving unit, and the removal noise characteristic setting unit are mounted on the slave unit, even in an environment around the mobile slave unit, after noise removal While listening to the voice, the noise characteristic to be removed can be optimally set by trial and error using the removal noise characteristic setting means.

本発明の請求項５に記載の電話装置は、請求項３に記載の電話装置を前提として、前記電話装置は、外部と通信可能な親機と、その親機と無線通信可能であって、その親機を介して外部と通信可能な子機とから構成され、前記送話部、前記受話部、前記除去ノイズ特性設定手段及び前記表示手段は、前記子機に搭載されていることを特徴とする。   According to a fifth aspect of the present invention, on the premise of the telephone device according to the third aspect, the telephone device is capable of communicating with the parent device capable of communicating with the outside and wirelessly communicating with the parent device, It is comprised from the subunit | mobile_unit which can communicate with the exterior via the main | base station, The said transmission part, the said receiving part, the said removal noise characteristic setting means, and the said display means are mounted in the said subunit | mobile_unit. And

請求項５に記載の電話装置によれば、子機に送話部、受話部、除去ノイズ特性設定手段及び表示手段が搭載されているので、移動可能な子機の周りの環境においても、ノイズ除去後の音声を聞きながら、除去ノイズ特性設定手段を用いて、除去すべきノイズ特性を試行錯誤的に最適に設定することができる。   According to the telephone device of the fifth aspect, since the transmitting unit, the receiving unit, the removal noise characteristic setting unit, and the display unit are mounted on the slave unit, noise can be generated even in an environment around the movable slave unit. While listening to the speech after removal, the noise characteristic to be removed can be optimally set by trial and error using the removal noise characteristic setting means.

以下で本発明の実施例１を、添付図面を参照しながら説明する。実施例１においては、図１に示されるコードレス電話１の親機１００を用いてノイズ除去を行う。   Embodiment 1 of the present invention will be described below with reference to the accompanying drawings. In the first embodiment, noise removal is performed using the base unit 100 of the cordless telephone 1 shown in FIG.

まず図１に示されたコードレス電話装置１の概要を説明する。コードレス電話装置１は親機１００と子機２００からなり、親機１００は外部の回線網５００に有線接続されており、回線網５００を通じて外線通話可能である。子機２００は親機１００との間で無線信号３００，３０１を送受信することで、親機１００との間での内線通話及び、親機１００を介して外部の回線網５００との間の外線通話が可能である。   First, the outline of the cordless telephone device 1 shown in FIG. 1 will be described. The cordless telephone device 1 includes a parent device 100 and a child device 200. The parent device 100 is wired to an external line network 500, and can make an external line call through the line network 500. The slave unit 200 transmits and receives radio signals 300 and 301 to and from the master unit 100, so that an extension call with the master unit 100 and an external line with the external line network 500 through the master unit 100 are performed. A call is possible.

次に親機１００の主要構造を説明する。親機１００には親機１００の各部を制御する制御部１２０が備えられ、制御部１２０は各種情報処理のためのＣＰＵ１２１、情報処理の作業領域等のためのＲＡＭ１２２、記憶部としてのＲＯＭ１２３を備えている。そして、経路切替を行う経路切替部１９５、切替部１４０、ノイズの除去を行うノイズ除去部１３０、子機２００との間で無線通信を行うためのＲＦ系回路１９０、各種情報の表示を行う表示部１８０、使用者が入力するための入力部１８１が配置され、これらが制御部１２０によって制御される。   Next, the main structure of base unit 100 will be described. The base unit 100 includes a control unit 120 that controls each unit of the base unit 100. The control unit 120 includes a CPU 121 for various information processing, a RAM 122 for information processing work areas, and a ROM 123 as a storage unit. ing. A path switching unit 195 that performs path switching, a switching unit 140, a noise removal unit 130 that removes noise, an RF system circuit 190 that performs wireless communication with the slave unit 200, and a display that displays various types of information. A unit 180 and an input unit 181 for input by the user are arranged, and these are controlled by the control unit 120.

またスピーカ１７０とマイクロフォン１７１とが備えられ、受話側信号経路７０と送話側信号経路７５とが、それぞれスピーカ１７０、マイクロフォン１７１と経路切替部１９５との間を接続する。受話側信号経路７０上にはＤ／Ａ変換器１６２が配置されている。送話側信号経路７５上にはＡ／Ｄ変換器１６３と、本発明に係るノイズ除去部１３０とが配置されている。   A speaker 170 and a microphone 171 are provided, and the reception side signal path 70 and the transmission side signal path 75 connect the speaker 170, the microphone 171 and the path switching unit 195, respectively. A D / A converter 162 is disposed on the receiver signal path 70. An A / D converter 163 and a noise removing unit 130 according to the present invention are arranged on the transmission side signal path 75.

さらに受話側信号経路８０と送話側信号経路８５とが、ＲＦ系回路１９０と経路切替部１９５との間を接続する。そして受話側信号経路４０と送話側信号経路３０とが、切替部１４０と経路切替部１９５との間を接続する。受話側信号経路４０上にはＡ／Ｄ変換器１６０、バッファ１５０，１５２が配置され、送話側信号経路３０上にはＤ／Ａ変換器１６１、バッファ１５１，１５３が配置されている。   Further, the receiver side signal path 80 and the transmitter side signal path 85 connect between the RF circuit 190 and the path switching unit 195. The receiver side signal path 40 and the transmitter side signal path 30 connect between the switching unit 140 and the path switching unit 195. An A / D converter 160 and buffers 150 and 152 are arranged on the receiver side signal path 40, and a D / A converter 161 and buffers 151 and 153 are arranged on the transmitter side signal path 30.

こうした構成において、親機１００から外線通話を行う場合には、制御部１２０からの指令で経路切替部１９５が、受話側信号経路７０と受話側信号経路４０とを、そして送話側信号経路３０と送話側信号経路７５とを接続する。さらに切替部１４０が受話側信号経路２０と受話側信号経路４０、送話側信号経路１０と送話側信号経路３０とを接続する。   In such a configuration, when an external line call is made from the base unit 100, the path switching unit 195 switches between the receiving side signal path 70 and the receiving side signal path 40 and the transmitting side signal path 30 in response to a command from the control unit 120. Are connected to the transmission side signal path 75. Further, the switching unit 140 connects the receiving side signal path 20 and the receiving side signal path 40, and the transmitting side signal path 10 and the transmitting side signal path 30.

これにより、使用者がマイクロフォン１７１に入力した送話信号は送話側信号経路７５、３０、１０を通って外部の回線網５００へと送られる。送話信号は、その間にＡ／Ｄ変換器１６３でディジタル信号に変換され、ノイズ除去部１３０でノイズが除去され、バッファ１５３を通ってＤ／Ａ変換器１６１でアナログ信号に変換されて、バッファ１５１を通る。   As a result, the transmission signal input to the microphone 171 by the user is transmitted to the external network 500 through the transmission side signal paths 75, 30 and 10. In the meantime, the transmission signal is converted into a digital signal by the A / D converter 163, noise is removed by the noise removing unit 130, passes through the buffer 153, is converted into an analog signal by the D / A converter 161, and is buffered. 151 through.

そして外部の回線網５００から送信されてきた受話信号は、受話側信号経路２０、４０、７０を通ってスピーカ１７０へと送られる。受話信号は、その間にバッファ１５０を通り、Ａ／Ｄ変換器１６０でディジタル信号に変換され、バッファ１５２を通り、Ｄ／Ａ変換器１６２でアナログ信号に変換される。   Then, the reception signal transmitted from the external network 500 is sent to the speaker 170 through the reception side signal paths 20, 40 and 70. In the meantime, the received signal passes through the buffer 150, is converted into a digital signal by the A / D converter 160, passes through the buffer 152, and is converted into an analog signal by the D / A converter 162.

子機２００が親機１００を経由して外線通話を行う場合には、経路切替部１９５は、受話側信号経路４０と受話側信号経路８０とを、そして送話側信号経路３０と送話側信号経路８５とをそれぞれ接続する。さらに切替部１４０が受話側信号経路２０と受話側信号経路４０、送話側信号経路１０と送話側信号経路３０とを接続する。   When the handset 200 performs an external line call via the base unit 100, the path switching unit 195 connects the receiving side signal path 40 and the receiving side signal path 80, and the transmitting side signal path 30 and the transmitting side. The signal paths 85 are connected to each other. Further, the switching unit 140 connects the receiving side signal path 20 and the receiving side signal path 40, and the transmitting side signal path 10 and the transmitting side signal path 30.

これにより子機２００から無線で送られてきた送話信号はＲＦ系回路１９０で受信され、送話側信号経路８５、３０、１０を通って外部の回線網５００へと送られる。送話信号はその間に、バッファ１５１，１５３を通るとともにＤ／Ａ変換器１６１でアナログ信号に変換される。   As a result, the transmission signal transmitted wirelessly from the slave unit 200 is received by the RF system circuit 190 and transmitted to the external circuit network 500 through the transmission side signal paths 85, 30 and 10. In the meantime, the transmission signal passes through the buffers 151 and 153 and is converted into an analog signal by the D / A converter 161.

そして外部の回線網５００から送信されてきた受話信号は、受話側信号経路２０、４０、８０を通ってＲＦ系回路１９０へと送られ、さらに無線で子機２００へと送信される。受話信号はその間に、バッファ１５０、１５２を通るとともに、Ａ／Ｄ変換器１６０でディジタル信号に変換される。   Then, the reception signal transmitted from the external network 500 is transmitted to the RF circuit 190 through the reception-side signal paths 20, 40, 80, and further transmitted to the slave device 200 wirelessly. In the meantime, the received signal passes through the buffers 150 and 152 and is converted into a digital signal by the A / D converter 160.

次に子機２００について説明する。子機２００には制御部２２０が備えられている。制御部２２０は、各種情報処理のためのＣＰＵ２２１、情報処理の作業領域等のためのＲＡＭ２２２、記憶部としてのＲＯＭ２２３を備えている。制御部２２０は、各種情報の表示のための表示部２８０、使用者からの入力のための入力部２８１、ノイズ除去部２３０等の制御を行う。   Next, the slave unit 200 will be described. The subunit | mobile_unit 200 is provided with the control part 220. FIG. The control unit 220 includes a CPU 221 for various information processing, a RAM 222 for information processing work areas, and a ROM 223 as a storage unit. The control unit 220 controls the display unit 280 for displaying various information, the input unit 281 for input from the user, the noise removing unit 230, and the like.

使用者がマイクロフォン２７１から入力した送話信号は送話側信号経路５０を通ってＲＦ系回路２９０へ送られ、ＲＦ系回路２９０から親機１００へ無線で送られる。送話信号は、送話側信号経路５０を通る際に、バッファ２５１，２５３を通るとともにＡ／Ｄ変換器２６１によりディジタル信号へと変換される。さらに送話信号は、本発明に係るノイズ除去部２３０によりノイズが除去される。ノイズ除去に関しては後述する。   The transmission signal input from the microphone 271 by the user is transmitted to the RF system circuit 290 through the transmission side signal path 50, and is transmitted wirelessly from the RF system circuit 290 to the parent device 100. When the transmission signal passes through the transmission side signal path 50, the transmission signal passes through the buffers 251 and 253 and is converted into a digital signal by the A / D converter 261. Further, noise is removed from the transmission signal by the noise removing unit 230 according to the present invention. The noise removal will be described later.

また親機１００側からＲＦ系回路２９０で受信された受話信号は、受話側信号経路６０を通ってスピーカ２７０へと送られる。受話信号は、受話側信号経路６０を通る際に、バッファ２５０，２５２を通るとともにＤ／Ａ変換器２６０によりアナログ信号に変換される。   Also, the reception signal received by the RF circuit 290 from the base unit 100 side is sent to the speaker 270 through the reception side signal path 60. When the reception signal passes through the reception side signal path 60, the reception signal passes through the buffers 250 and 252 and is converted into an analog signal by the D / A converter 260.

実施例１では、上述のとおり、上で説明した親機１００が外線通話を行う状況が扱われる。したがって、経路切替部１９５により、受話側信号経路４０と送話側信号経路３０とがそれぞれ、受話側信号経路７０と送話側信号経路７５に接続される。以下で図２、図３によって実施例１が説明される。図２は実施例１の処理全体のフローチャートであり、図３は切替部１４０の接続の切替を説明する図である。   In the first embodiment, as described above, the situation where the parent device 100 described above performs an outside line call is handled. Accordingly, the path switching unit 195 connects the receiver side signal path 40 and the transmitter side signal path 30 to the receiver side signal path 70 and the transmitter side signal path 75, respectively. The first embodiment will be described below with reference to FIGS. FIG. 2 is a flowchart of the entire processing of the first embodiment, and FIG. 3 is a diagram for explaining the switching of the connection of the switching unit 140.

まず図２には、本発明に係るノイズ除去確認・設定処理の処理手順が示されている。以下の手順がＣＰＵ１２１によって順次行われる。図２の処理手順ではまず、Ｓ１０で使用者は親機１００の入力部１８１を用いてテストモード開始を入力する。以下で説明するすべての実施例でノイズ除去確認・設定処理をテストモードと称することとする。Ｓ１０により親機１００はテストモードとなる。次にＳ２０で親機１００のＣＰＵ１２１により切替部１４０が還流接続状態となる。   First, FIG. 2 shows a processing procedure of noise removal confirmation / setting processing according to the present invention. The following procedure is sequentially performed by the CPU 121. In the processing procedure of FIG. 2, first, in S10, the user inputs a test mode start using the input unit 181 of the parent device 100. In all the embodiments described below, the noise removal confirmation / setting process is referred to as a test mode. By S10, base unit 100 enters the test mode. Next, in S20, the switching unit 140 enters the reflux connection state by the CPU 121 of the parent device 100.

還流接続状態は図３に示されている。切替部１４０には、受話側信号経路２０，４０、送話側信号経路１０，３０と端子１４１，１４２，１４３，１４４、１４５，１４６とが配置されている。図３（ａ）に示された接続が通常接続状態である。端子１４１と端子１４２、端子１４３と端子１４４がそれぞれ接続されることにより、受話側信号経路２０と受話側信号経路４０とが、そして送話側信号経路１０と送話側信号経路３０とがそれぞれ接続される。これにより送話信号、受話信号は、図３（ａ）に示された矢印のように、送信されることとなる。   The reflux connection state is shown in FIG. The switching unit 140 is provided with receiving signal paths 20 and 40, transmitting signal paths 10 and 30, and terminals 141, 142, 143, 144, 145, and 146. The connection shown in FIG. 3A is a normal connection state. By connecting the terminal 141 and the terminal 142, the terminal 143 and the terminal 144, respectively, the receiving side signal path 20 and the receiving side signal path 40, and the transmitting side signal path 10 and the transmitting side signal path 30 are respectively connected. Connected. As a result, the transmission signal and the reception signal are transmitted as shown by the arrows in FIG.

一方、図３（ｂ）に示された接続が還流接続状態である。還流接続状態においては、端子１４２と端子１４５、端子１４３と端子１４６がそれぞれ接続される。これにより、図３（ｂ）に示された矢印のように、送話側信号経路３０上を送信された送話信号は端子１４６、端子１４５を経由して受話側信号経路４０へと還流される。したがって、本装置の使用者は、親機１００のマイクロフォン１７１へと入力した自身の音声信号をスピ−カ１７０から聞くことができる。図２の手順Ｓ２０により切替部１４０が図３（ｂ）の還流接続状態となる。   On the other hand, the connection shown in FIG. 3B is the reflux connection state. In the reflux connection state, the terminal 142 and the terminal 145 and the terminal 143 and the terminal 146 are connected, respectively. As a result, the transmission signal transmitted on the transmission side signal path 30 is returned to the reception side signal path 40 via the terminals 146 and 145, as indicated by the arrows shown in FIG. The Therefore, the user of this apparatus can hear his / her voice signal input to the microphone 171 of the parent device 100 from the speaker 170. In step S20 of FIG. 2, the switching unit 140 enters the reflux connection state of FIG.

次に、図２のＳ４０で親機１００の入力部１８１を用いて除去すべきノイズ特性が設定される。この手順においては、使用者が入力部１８１を用いて、ＲＯＭ１２３内に複数格納されているノイズ除去プログラムのなかからひとつを選ぶ。これにより、ＣＰＵ１２１は選ばれたノイズ除去プログラムによるノイズ除去操作をノイズ除去部１３０で開始する。Ｓ４０においては、ＲＯＭ１２３内に格納されているノイズ除去プログラムを呼び出し、使用者が入力部１８１を用いてノイズ除去プログラム中のパラメータ値を設定する形態でもよい。   Next, a noise characteristic to be removed is set using the input unit 181 of the parent device 100 in S40 of FIG. In this procedure, the user uses the input unit 181 to select one of a plurality of noise removal programs stored in the ROM 123. As a result, the CPU 121 starts the noise removal operation by the noise removal unit 130 according to the selected noise removal program. In S <b> 40, the noise removal program stored in the ROM 123 may be called and the user may set the parameter value in the noise removal program using the input unit 181.

次にＳ５０で、使用者が還流されてきた受話音質が望ましいかどうかを入力部１８１を用いて入力する。受話音質が望ましいと使用者が入力した場合（Ｓ５０：ＹＥＳ）、次の手順はＳ６０となる。受話音質が望ましくないと使用者が入力した場合（Ｓ５０：ＮＯ）、次の手順は再びＳ４０へ戻り、使用者がノイズ除去プログラムの選択を再度行う。そして受話音質が望ましいと使用者が入力するまで、ＣＰＵ１２１は同じ手順を繰り返す。   In step S50, the input unit 181 is used to input whether the received voice quality that the user has returned to is desirable. When the user inputs that the received sound quality is desirable (S50: YES), the next procedure is S60. If the user inputs that the received sound quality is not desirable (S50: NO), the next procedure returns to S40 again, and the user selects the noise removal program again. The CPU 121 repeats the same procedure until the user inputs that the received sound quality is desirable.

次にＳ６０では、使用者が望ましいと判断したノイズ除去プログラムが、ノイズ除去部１３０で用いられるノイズ除去プログラムとして決定される。そして、Ｓ８０で切替部１４０が図３（ａ）の通常接続状態へと切り替えられ、さらにＳ９０で親機１００の表示部１８０でテストモードの終了が表示されてテストモードが終了する。これにより、通常の通話へと戻る。   Next, in S <b> 60, the noise removal program that the user has determined is desirable as the noise removal program used by the noise removal unit 130. In step S80, the switching unit 140 is switched to the normal connection state shown in FIG. 3A. Further, in step S90, the end of the test mode is displayed on the display unit 180 of the parent device 100, and the test mode ends. As a result, the normal call returns.

次に実施例２を説明する。実施例１が自身の音声を使用者が聞くことによる除去ノイズ特性の確認、設定であったのに対し、実施例２においては、さらにノイズ除去後の信号のスペクトラム表示を加えた除去ノイズ特性の確認、設定が行われる。実施例２においても、経路切替部１９５により、受話側信号経路４０と送話側信号経路３０とがそれぞれ、受話側信号経路７０と送話側信号経路７５に接続される。実施例２の処理全体を示すフローチャートは図４に示されている。   Next, Example 2 will be described. In the first embodiment, the removal noise characteristic is confirmed and set by listening to the user's own voice. In the second embodiment, the removal noise characteristic is further obtained by adding the spectrum display of the signal after noise removal. Confirmation and setting are performed. Also in the second embodiment, the reception side signal path 40 and the transmission side signal path 30 are connected to the reception side signal path 70 and the transmission side signal path 75 by the path switching unit 195, respectively. A flowchart showing the overall processing of the second embodiment is shown in FIG.

図４の処理手順ではまず、Ｓ１０で親機１００の入力部１８１を用いてテストモード開始を入力する。これによりＣＰＵ１２１は、親機１００をテストモードとする。そして以下の手順が、ＣＰＵ１２１によって順次行われる。まずＳ２０で親機１００の切替部１４０が還流接続状態とされる。次にＳ２５で送話信号のスペクトラムの算出が開始される。送話信号は例えばノイズ除去部１３０の出力部の信号が取得される。スペクトラム算出の方法は従来技術であるので説明を省略する。そしてＳ３０で、親機１００の表示部１８０において送話信号のスペクトラム表示が開始される。   In the processing procedure of FIG. 4, first, a test mode start is input using the input unit 181 of the parent device 100 in S10. Thereby, the CPU 121 sets the parent device 100 to the test mode. The following procedure is sequentially performed by the CPU 121. First, in S20, the switching unit 140 of the parent device 100 is brought into the reflux connection state. Next, calculation of the spectrum of the transmission signal is started in S25. As the transmission signal, for example, a signal from the output unit of the noise removing unit 130 is acquired. Since the spectrum calculation method is a conventional technique, a description thereof will be omitted. In S30, spectrum display of the transmission signal is started on display unit 180 of base unit 100.

次にＳ４０では、親機１００の入力部１８１を用いて除去すべきノイズ特性が設定される。この手順においては、使用者が入力部１８１を用いて、ＲＯＭ１２３内に格納されているノイズ除去プログラムのなかからひとつを選ぶ。これにより、ＣＰＵ１２１は選ばれたノイズ除去プログラムによるノイズ除去操作をノイズ除去部１３０で開始する。   Next, in S40, a noise characteristic to be removed is set using the input unit 181 of the parent device 100. In this procedure, the user uses the input unit 181 to select one of the noise removal programs stored in the ROM 123. As a result, the CPU 121 starts the noise removal operation by the noise removal unit 130 according to the selected noise removal program.

次に、Ｓ５０で還流してきた受話音質が望ましいかどうか、そして表示部１８０に表示されたスペクトラムが望ましいかどうかを使用者が入力部１８１を用いて入力する。表示部１８０におけるスペクトラム表示の様子が、図５（ａ），（ｂ）に２つ例示されている。図５で横軸２８３は周波数であり、縦軸２８４は各信号成分の強度である。また実線２８５、２８７はノイズ除去部１３０の出力側における信号のスペクトラムを示している。一般に、この実線２８５、２８７には音声成分とノイズ成分とが重畳されている。点線２８６、２８８は、そのうちのノイズ成分のみのスペクトラムを示す仮想線である。実際の表示においては実線２８５，２８７のみが表示される。   Next, the user uses the input unit 181 to input whether the received voice quality returned in S50 is desirable and whether the spectrum displayed on the display unit 180 is desirable. Two states of spectrum display on the display unit 180 are illustrated in FIGS. 5 (a) and 5 (b). In FIG. 5, the horizontal axis 283 is the frequency, and the vertical axis 284 is the intensity of each signal component. Solid lines 285 and 287 indicate the spectrum of the signal on the output side of the noise removing unit 130. In general, voice components and noise components are superimposed on the solid lines 285 and 287. Dotted lines 286 and 288 are virtual lines indicating the spectrum of only the noise component. In actual display, only solid lines 285 and 287 are displayed.

例えば図５（ａ）と図５（ｂ）とが、それぞれ別のノイズ除去プログラムを用いた場合のスペクトラムだとすると、それぞれのノイズ除去プログラムによるノイズ除去の効果がスペクトラム表示により比較できることがわかる。こうした情報をもとにして使用者はＳ５０における入力をおこなう。   For example, if FIG. 5A and FIG. 5B are spectrums when different noise removal programs are used, it can be seen that the effects of noise removal by the respective noise removal programs can be compared by spectrum display. Based on such information, the user performs input in S50.

なお、上記の表示形態ではなく、表示部１８０において、ノイズ除去部１３０の入力部の信号のスペクトラムとノイズ除去部１３０の出力部の信号のスペクトラムとを重ねて表示する形態としてもよい。この場合、使用者は、その時点で使用されているノイズ除去プログラムによりノイズとみなされて除去された部分を、出力部と入力部の信号のスペクトラムの差の部分として視覚的に把握できる。   Instead of the display form described above, the display unit 180 may display the signal spectrum of the input unit of the noise removal unit 130 and the spectrum of the signal of the output unit of the noise removal unit 130 in an overlapping manner. In this case, the user can visually grasp the portion considered as noise by the noise removal program used at that time and removed as the difference between the spectrums of the signals of the output unit and the input unit.

受話音質、スペクトラムが望ましいと使用者が入力した場合（Ｓ５０：ＹＥＳ）、次の手順はＳ６０となる。受話音質、スペクトラムが望ましくないと使用者が入力した場合（Ｓ５０：ＮＯ）、再びＳ４０へ戻り、使用者がノイズ除去プログラムの選択を再度行う。そして受話音質、スペクトラムが望ましいと使用者が入力するまで、ＣＰＵ１２１は同じ手順を繰り返す。   When the user inputs that the received sound quality and spectrum are desirable (S50: YES), the next procedure is S60. When the user inputs that the received sound quality and spectrum are not desirable (S50: NO), the process returns to S40, and the user selects the noise removal program again. The CPU 121 repeats the same procedure until the user inputs that the received sound quality and spectrum are desirable.

次にＳ６０では使用者が望ましいと判断した除去ノイズ特性がノイズ除去部１３０で用いられる除去ノイズ特性として決定される。これにより、Ｓ７０で親機１００の表示部１８０でのスペクトラム表示が終了される。そしてＳ８０で切替部１４０が、通常接続状態へと切り替えられる。さらにＳ９０で親機１００の表示部１８０でテストモードの終了が表示される。これでテストモードが終了する。これにより、通常の通話へと戻る。   Next, in S <b> 60, the removal noise characteristic determined by the user to be desirable is determined as the removal noise characteristic used in the noise removal unit 130. Thereby, the spectrum display on the display unit 180 of the parent device 100 is terminated in S70. In step S80, the switching unit 140 is switched to the normal connection state. In S90, the end of the test mode is displayed on the display unit 180 of the parent device 100. This ends the test mode. As a result, the normal call returns.

次に、実施例３，４の説明へ移る。上で説明した実施例１，２が親機１００によるノイズ除去確認・設定であったのに対し、実施例３，４は子機２００が外線通話中の状況でのノイズ除去確認・設定である。実施例３、４では子機２００が外線通話状態であるので、経路切替部１９５によって、親機１００の側の受話側信号経路４０，送話側信号経路３０は、ＲＦ系回路１９０側の受話側信号経路８０，送話側信号経路８５とそれぞれ接続される。   Next, the description will proceed to the third and fourth embodiments. While the first and second embodiments described above are the noise removal confirmation / setting by the base unit 100, the third and fourth embodiments are the noise removal confirmation / setting in a situation where the handset 200 is in an external line call. . In the third and fourth embodiments, since the handset 200 is in an external line communication state, the path switching unit 195 causes the receiving side signal path 40 and the transmitting side signal path 30 on the base unit 100 side to receive on the RF circuit 190 side. The side signal path 80 and the transmission side signal path 85 are connected to each other.

まず以下で実施例３を説明する。実施例３では、上で説明した子機２００が親機１００を介して外線通話を行う状況において、マイクロフォン２７１から混入するノイズを、ノイズ除去部２３０と切替部１４０を用いて除去あるいは抑制する。実施例３では使用者は、実施例１と同様に、還流してきた自身の音声の確認のみから除去ノイズ特性を確認、設定する。実施例３の処理手順は図６を用いて説明される。   First, Example 3 will be described below. In the third embodiment, the noise mixed from the microphone 271 is removed or suppressed using the noise removing unit 230 and the switching unit 140 in the situation where the child device 200 described above performs an outside line call via the parent device 100. In the third embodiment, as in the first embodiment, the user confirms and sets the removal noise characteristic only from the confirmation of the voice that has been circulated. The processing procedure of the third embodiment will be described with reference to FIG.

図６の処理手順ではまず、使用者がＳ１１０で子機２００の入力部２８１を用いてテストモード開始を入力する。これによりＣＰＵ１２１，２２１は子機２００及び親機１００をテストモードとする。そして以下の手順が、ＣＰＵ２２１によって順次行われる。まずＳ１２０でＣＰＵ２２１により、切替指令が無線信号３００を通じて親機１００側に伝達されることにより切替部１４０が還流接続状態とされる。次に、Ｓ１４０で使用者は、子機２００の入力部２８１を用いて除去すべきノイズ特性を設定する。この手順においては、使用者が入力部２８１を用いて、ＲＯＭ２２３内に格納されているノイズ除去プログラムのなかからひとつを選ぶ。これにより、ＣＰＵ２２１は選ばれたノイズ除去プログラムによるノイズ除去操作をノイズ除去部２３０で開始する。   In the processing procedure of FIG. 6, first, the user inputs a test mode start using the input unit 281 of the slave device 200 in S110. Accordingly, the CPUs 121 and 221 set the slave unit 200 and the master unit 100 to the test mode. The following procedures are sequentially performed by the CPU 221. First, in S120, the CPU 221 transmits a switching command to the parent device 100 side through the wireless signal 300, whereby the switching unit 140 is brought into a reflux connection state. Next, in S140, the user sets a noise characteristic to be removed using the input unit 281 of the child device 200. In this procedure, the user uses the input unit 281 to select one of the noise removal programs stored in the ROM 223. Thereby, the CPU 221 starts the noise removal operation by the noise removal unit 230 by the selected noise removal program.

次に、Ｓ１５０で還流してきた受話音質が望ましいかどうかを使用者が入力部２８１を用いて入力する。受話音質が望ましいと使用者が入力した場合（Ｓ１５０：ＹＥＳ）、次の手順はＳ１６０となる。受話音質が望ましくないと使用者が入力した場合（Ｓ１５０：ＮＯ）、再びＳ１４０へ戻り、使用者はノイズ除去プログラムの選択を再度行う。そして受話音質が望ましいと使用者が入力するまで、ＣＰＵ２２１は同じ手順を繰り返す。   Next, the user inputs using the input unit 281 whether or not the received sound quality returned to S150 is desirable. When the user inputs that the received sound quality is desirable (S150: YES), the next procedure is S160. When the user inputs that the received sound quality is not desirable (S150: NO), the process returns to S140 again, and the user selects the noise removal program again. The CPU 221 repeats the same procedure until the user inputs that the received sound quality is desirable.

次にＳ１６０では使用者が望ましいと判断したノイズ除去プログラムがノイズ除去部２３０で用いられるノイズ除去プログラムとして決定される。そして、Ｓ１８０で切替部１４０が、通常接続状態へと切り替えられる。そして、Ｓ１９０で子機２００の表示部２８０でテストモードの終了が表示されてテストモードが終了する。これにより、通常の通話へと戻る。   Next, in S <b> 160, the noise removal program that the user has determined is desirable as the noise removal program used by the noise removal unit 230. In S180, the switching unit 140 is switched to the normal connection state. In S190, the end of the test mode is displayed on the display unit 280 of the slave unit 200, and the test mode ends. As a result, the normal call returns.

次に実施例４を説明する。実施例４においては、実施例３に対してさらにノイズ除去後の信号のスペクトラム表示を加えた除去ノイズ特性の確認、設定が行われる。実施例４の処理全体を示すフローチャートは図７に示されている。   Next, Example 4 will be described. In the fourth embodiment, the removal noise characteristics are confirmed and set by adding spectrum display of the signal after noise removal to the third embodiment. A flowchart showing the entire processing of the fourth embodiment is shown in FIG.

図７の処理手順ではまず、使用者がＳ１１０で子機２００の入力部２８１を用いてテストモード開始を入力する。これによりＣＰＵ２２１は子機２００及び親機１００をテストモードとする。そして以下の手順が、ＣＰＵ２２１によって順次行われる。まずＳ１２０でＣＰＵ２２１により、切替指令が無線信号３００を通じて親機１００側に伝達されることにより切替部１４０が還流接続状態となる。次にＳ１２５で送話信号のスペクトラムの算出が開始される。送話信号は例えばノイズ除去部２３０の出力部の信号が取得される。スペクトラム算出の方法は従来技術であるので説明を省略する。そしてＳ１３０で子機２００の表示部２８０において送話信号のスペクトラム表示を開始する。   In the processing procedure of FIG. 7, first, the user inputs a test mode start using the input unit 281 of the slave unit 200 in S110. Thereby, the CPU 221 sets the slave unit 200 and the master unit 100 to the test mode. The following procedures are sequentially performed by the CPU 221. First, in S120, the CPU 221 transmits a switching command to the parent device 100 side through the wireless signal 300, whereby the switching unit 140 enters a reflux connection state. Next, in S125, calculation of the spectrum of the transmission signal is started. As the transmission signal, for example, a signal of the output unit of the noise removing unit 230 is acquired. Since the spectrum calculation method is a conventional technique, a description thereof will be omitted. In S130, spectrum display of the transmission signal is started on the display unit 280 of the slave unit 200.

次に、Ｓ１４０で、使用者が子機２００の入力部２８１を用いて除去すべきノイズ特性を設定する。この手順においては、使用者が入力部２８１を用いて、ＲＯＭ２２３内に格納されているノイズ除去プログラムのなかからひとつを選ぶ。これにより、ＣＰＵ２２１は選ばれたノイズ除去プログラムによるノイズ除去操作をノイズ除去部２３０で開始する。   Next, in S140, the user sets noise characteristics to be removed using the input unit 281 of the child device 200. In this procedure, the user uses the input unit 281 to select one of the noise removal programs stored in the ROM 223. Thereby, the CPU 221 starts the noise removal operation by the noise removal unit 230 by the selected noise removal program.

次に、Ｓ１５０で受話音質が望ましいかどうか、そして表示部２８０に表示されたスペクトラムが望ましいかどうかを、使用者が入力部２８１を用いて入力する。表示部２８０におけるスペクトラム表示の様子が、図８（ａ），（ｂ）に２つ例示されている。図８で横軸２８３は周波数であり、縦軸２８４は各信号成分の強度である。また実線３８５、３８７はノイズ除去部２３０の出力側における信号のスペクトラムを示している。一般に、この実線３８５、３８７には音声成分とノイズ成分とが重畳されている。点線３８６、３８８は、そのうちのノイズ成分のみのスペクトラムを示す仮想線である。実際の表示においては実線３８５，３８７のみが表示される。   Next, in S150, the user inputs whether the received sound quality is desirable and whether the spectrum displayed on the display unit 280 is desirable using the input unit 281. Two states of spectrum display on the display unit 280 are illustrated in FIGS. 8A and 8B. In FIG. 8, the horizontal axis 283 is the frequency, and the vertical axis 284 is the intensity of each signal component. Solid lines 385 and 387 indicate the spectrum of the signal on the output side of the noise removing unit 230. In general, a voice component and a noise component are superimposed on the solid lines 385 and 387. Dotted lines 386 and 388 are virtual lines indicating the spectrum of only the noise component among them. In actual display, only solid lines 385 and 387 are displayed.

例えば図８（ａ）と図８（ｂ）とが、それぞれ別のノイズ除去プログラムを用いた場合のスペクトラムだとすると、それぞれのノイズ除去プログラムによるノイズ除去の効果がスペクトラム表示により比較できることがわかる。こうした情報をもとにして使用者はＳ１５０における入力をおこなう。   For example, if FIG. 8A and FIG. 8B are spectrums when different noise removal programs are used, it can be seen that the effects of noise removal by the respective noise removal programs can be compared by spectrum display. Based on such information, the user performs input in S150.

なお、上記の表示形態ではなく、表示部２８０において、ノイズ除去部２３０の入力部の信号のスペクトラムとノイズ除去部２３０の出力部の信号のスペクトラムとを重ねて表示する形態としてもよい。この場合、使用者は、その時点で使用されているノイズ除去プログラムによりノイズとみなされて除去された部分を、出力部と入力部の信号のスペクトラムの差の部分として視覚的に把握できる。   Instead of the above display mode, the display unit 280 may display the signal spectrum of the input unit of the noise removal unit 230 and the spectrum of the signal of the output unit of the noise removal unit 230 in an overlapping manner. In this case, the user can visually grasp the portion considered as noise by the noise removal program used at that time and removed as the difference between the spectrums of the signals of the output unit and the input unit.

受話音質、スペクトラムが望ましいと使用者が入力した場合（Ｓ１５０：ＹＥＳ）、次の手順はＳ１６０となる。受話音質、スペクトラムが望ましくないと使用者が入力した場合（Ｓ１５０：ＮＯ）、再びＳ１４０へ戻り、使用者がノイズ除去プログラムの選択を再度行う。そして受話音質、スペクトラムが望ましいと使用者が入力するまで、ＣＰＵ２２１は同じ手順を繰り返す。   When the user inputs that the received sound quality and spectrum are desirable (S150: YES), the next procedure is S160. When the user inputs that the received sound quality and spectrum are not desirable (S150: NO), the process returns to S140 again, and the user selects the noise removal program again. The CPU 221 repeats the same procedure until the user inputs that the received sound quality and spectrum are desirable.

次にＳ１６０では、使用者が望ましいと判断した除去ノイズ特性がノイズ除去部２３０で用いられる除去ノイズ特性として決定される。これにより、Ｓ１７５で子機２００の表示部２８０でのスペクトラム表示が終了される。そして、Ｓ１８０で切替部１４０が通常接続状態へと切り替えられる。さらにＳ１９０で子機２００の表示部２８０でテストモードの終了が表示されて、テストモードが終了する。これにより、通常の通話へと戻る。   Next, in S <b> 160, the removal noise characteristic determined by the user to be desirable is determined as the removal noise characteristic used by the noise removal unit 230. Thereby, the spectrum display on the display unit 280 of the child device 200 is terminated in S175. In step S180, the switching unit 140 is switched to the normal connection state. Furthermore, in S190, the end of the test mode is displayed on the display unit 280 of the slave unit 200, and the test mode ends. As a result, the normal call returns.

なおＳ４０親機入力部で除去ノイズ特性設定の手順と、Ｓ１４０子機入力部で除去ノイズ特性設定の手順とが、除去ノイズ特性設定手段として機能する。ノイズ除去部１３０，２３０がノイズ除去手段を構成する。切替部１４０及びスピーカ１７０，２７０が、ノイズ除去音声出力手段を構成する。また切替部１４０は切替手段を構成する。Ｓ２５及びＳ１２５のスペクトラム算出の手順が、算出手段として機能する。Ｓ３０親機表示部でスペクトラム表示の手順と、Ｓ１３０子機表示部でスペクトラム表示の手順とが、表示手段として機能する。   The removal noise characteristic setting procedure at the S40 master unit input unit and the removal noise characteristic setting procedure at the S140 slave unit input unit function as a removal noise characteristic setting unit. The noise removing units 130 and 230 constitute noise removing means. The switching unit 140 and the speakers 170 and 270 constitute noise-removed sound output means. The switching unit 140 constitutes a switching unit. The spectrum calculation procedure of S25 and S125 functions as calculation means. The spectrum display procedure at the S30 master unit display unit and the spectrum display procedure at the S130 slave unit display unit function as display means.

本発明の電話装置の一実施形態として例示するコードレス電話機の内部構成を示すブロック図。The block diagram which shows the internal structure of the cordless telephone illustrated as one Embodiment of the telephone apparatus of this invention. 実施例１の処理手順を示すフローチャート。3 is a flowchart illustrating a processing procedure according to the first embodiment. 切替部を示す図。The figure which shows a switching part. 実施例２の処理手順を示すフローチャート。10 is a flowchart illustrating a processing procedure according to the second embodiment. 親機の表示部によるスペクトラム表示を示す図。The figure which shows the spectrum display by the display part of a main | base station. 実施例３の処理手順を示すフローチャート。10 is a flowchart illustrating a processing procedure according to the third embodiment. 実施例４の処理手順を示すフローチャート。10 is a flowchart illustrating a processing procedure according to the fourth embodiment. 子機の表示部によるスペクトラム表示を示す図。The figure which shows the spectrum display by the display part of a subunit | mobile_unit.

符号の説明Explanation of symbols

１ コードレス電話機
１００ 親機
１２１ ＣＰＵ
１２３ ＲＯＭ
１３０ ノイズ除去部
１４０ 切替部
１８０ 表示部
１８１ 入力部
２００ 子機
２２１ ＣＰＵ
２２３ ＲＯＭ
２３０ ノイズ除去部
２８０ 表示部
２８１ 入力部
５００ 回線網 1 Cordless telephone 100 Master unit 121 CPU
123 ROM
DESCRIPTION OF SYMBOLS 130 Noise removal part 140 Switching part 180 Display part 181 Input part 200 Child machine 221 CPU
223 ROM
230 Noise removal unit 280 Display unit 281 Input unit 500 Line network

Claims (5)

入力される音声を送話信号として外部の回線網へ送信する送話部と、前記外部の回線網からの受話信号を音声として出力する受話部とを備えた電話装置であって、
除去すべきノイズ特性を設定するための除去ノイズ特性設定手段と、
その除去ノイズ特性設定手段により設定されたノイズ特性に基づいて、前記送話部に入力される前記送話信号からその送話信号に含まれるノイズを除去するノイズ除去手段と、
そのノイズ除去手段によってノイズを除去された後の信号を音声として前記受話部に出力するノイズ除去音声出力手段と
を備えたことを特徴とする電話装置。 A telephone device comprising: a transmitter that transmits input voice to an external circuit network as a transmission signal; and a receiver that outputs a reception signal from the external circuit network as a voice,
Removal noise characteristic setting means for setting the noise characteristic to be removed;
Based on the noise characteristic set by the removal noise characteristic setting means, noise removing means for removing noise included in the transmission signal from the transmission signal input to the transmission unit;
A telephone apparatus comprising: a noise-removed voice output unit that outputs a signal, from which noise has been removed by the noise removing unit, to the receiver as a voice. 前記送話部は、入力される前記送話信号を送話側信号経路を介して前記外部の回線網へ送信し、
前記受話部は、前記外部の回線網からの前記受話信号を受話側信号経路を介して出力し、
前記送話側信号経路と前記受話側信号経路とをそれぞれ前記回線網と接続する通常接続状態と、前記送話側信号経路及び前記受話側信号経路の前記回線網との接続を遮断し、前記送話側信号経路と前記受話側信号経路とを接続して、前記送話側信号経路を伝送された前記送話信号を前記受話側信号経路へと還流させる還流接続状態との間での接続を切り替える切替手段を
備えたことを特徴とする請求項１に記載の電話装置。 The transmission unit transmits the input transmission signal to the external line network through a transmission side signal path,
The receiver outputs the received signal from the external network via a receiver signal path;
A normal connection state in which the transmission side signal path and the reception side signal path are respectively connected to the line network; and the connection of the transmission side signal path and the reception side signal path to the line network is cut off, and A connection between the transmitter side signal path and the receiver side signal path, and a reflux connection state in which the transmitter signal transmitted through the transmitter side signal path is returned to the receiver side signal path. 2. The telephone apparatus according to claim 1, further comprising switching means for switching between the two. 前記ノイズ除去手段によってノイズを除去された後の信号のスペクトラムを算出する算出手段と、
前記算出手段によって算出された前記信号のスペクトラムを表示する表示手段とを備えたことを特徴とする請求項１または２に記載の電話装置。 Calculating means for calculating a spectrum of a signal after noise is removed by the noise removing means;
3. The telephone device according to claim 1, further comprising display means for displaying a spectrum of the signal calculated by the calculation means. 前記電話装置は、外部と通信可能な親機と、その親機と無線通信可能であって、その親機を介して外部と通信可能な子機とから構成され、
前記送話部、前記受話部及び前記除去ノイズ特性設定手段は、前記子機に搭載されていることを特徴とする請求項１または２に記載の電話装置。 The telephone device is composed of a parent device capable of communicating with the outside, and a child device capable of wireless communication with the parent device and capable of communicating with the outside via the parent device,
The telephone device according to claim 1 or 2, wherein the transmitter, the receiver, and the removal noise characteristic setting unit are mounted on the slave unit. 前記電話装置は、外部と通信可能な親機と、その親機と無線通信可能であって、その親機を介して外部と通信可能な子機とから構成され、
前記送話部、前記受話部、前記除去ノイズ特性設定手段及び前記表示手段は、前記子機に搭載されていることを特徴とする請求項３に記載の電話装置。 The telephone device is composed of a parent device capable of communicating with the outside, and a child device capable of wireless communication with the parent device and capable of communicating with the outside via the parent device,
The telephone apparatus according to claim 3, wherein the transmitter, the receiver, the removal noise characteristic setting unit, and the display unit are mounted on the slave unit.
JP2007118609A 2007-03-27 2007-04-27 Telephone apparatus Pending JP2008271481A (en)

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