JP3820129B2 - Volume control device for telephone - Google Patents

Volume control device for telephone Download PDF

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JP3820129B2
JP3820129B2 JP2001307494A JP2001307494A JP3820129B2 JP 3820129 B2 JP3820129 B2 JP 3820129B2 JP 2001307494 A JP2001307494 A JP 2001307494A JP 2001307494 A JP2001307494 A JP 2001307494A JP 3820129 B2 JP3820129 B2 JP 3820129B2
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volume
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volume adjustment
telephone
adjustment operation
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JP2003115900A (en
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研一 赤羽
好政 原
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Kenwood KK
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Kenwood KK
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Description

【０００１】
【発明の属する技術分野】
本発明は電話機の音量調節装置に係り、とくに、受話器の受話音量、ハンズフリー通話時または留守録音メッセージ再生時の拡声スピーカの拡声音量、呼び出し音量等を個別に音量調節可能な電話機の音量調節装置に関する。
【０００２】
【従来の技術】
電話機には使用環境やユーザの個人差によらず、つねに最適な音量で使用できるようにするため、音量調節機能が付いている。ところが、電話機には、受話器で通話中の受話音量、ハンズフリー通話時または留守録音メッセージ再生時の拡声スピーカの拡声音量、呼び出し音量など、多数の音量調節項目が有り、個々の調節項目に対し独立した音量調節操作手段を設けることにすると、多数の操作手段が必要となり、電話機が大型となってしまう。このため、従来から、１つの音量調節操作手段を兼用し、受話器で通話中の受話音量と呼び出し音量などの複数の音量調節項目を、電話機の動作状態に応じて自動的に切り換えて個別に音量調節可能としている。
【０００３】
【発明が解決しようとする課題】
けれども、従来の１つの音量調節操作手段を兼用して音量調節する電話機では、音量調節操作をしたときの電話機の動作状態で一義的に調節対象が決まってしまうため、例えば、呼び出し音が鳴ったときに大き過ぎたので、受話器を持ち上げたあと、あわてて呼び出し音量を小さくしようとして音量調節操作をしたら、既に通話状態となっていたので、受話音量が小さくなってしまうという操作ミスを犯すことがあった。また、受話音量の調節は相手の声の大小に従い比較的頻繁に行うため、１つの兼用の音量調節操作手段を用いて受話音量の調節をすることに慣れてしまい、通話時に受話音量が小さかったとき、受話音量を増大しようとして通話後に兼用の音量調節操作手段を用いて音量調節してしまうことがある。すると、受話音量でなく呼び出し音量が変わって、大きな呼び出し音に驚くことがあった。
本発明は上記した従来技術の問題に鑑み、誤操作を少なくした電話機の音量調節装置を提供することを、その目的とする。
【０００４】
【課題を解決するための手段】
請求項１記載の電話機の音量調節装置では、１つの音量調節操作手段を兼用し、複数の音量調節項目を切り換えて個別に音量調節可能とした電話機において、１つの音量調節操作手段で兼用して、受話器の受話音量、ハンズフリー通話時または留守録音メッセージ再生時の拡声スピーカからの拡声音量を含む調節頻度の高い音声に関係する複数の音量調節項目を切り換えて、個別に音量調節操作を行う第１の音量調節操作手段と、１つの音量調節操作手段で兼用して、呼び出し音を含む調節頻度の低い音声に関係しない複数の音量調節項目を切り換えて、個別に音量調節操作を行う第２の音量調節操作手段と、第１の音量調節操作手段の現在の音量調節対象項目を示す第１の音量調節モードの切り換えと、第２の音量調節操作手段の現在の音量調節対象項目を示す第２の音量調節モードの切り換えを行う切り換え手段と、第１の音量調節操作手段が操作されると、その時点での第１の音量調節モードに対応する音量調節項目の音量調節制御をし、第２の音量調節操作手段が操作されると、その時点での第２の音量調節モードに対応する音量調節項目の音量調節制御をする音量調節制御手段と、を含むことを特徴としている。
請求項２では、請求項１において、切り換え手段は、電話機の動作状態に応じて第１の音量調節モードの切り換えを行うようにする。
請求項３では請求項２において、切り換え手段は、電話機が受話器による通話中のとき、第１の音量調節モードを受話器の受話音量とし、電話機がハンズフリー通話中または留守録音メッセージ再生中のとき、第１の音量調節モードを拡声スピーカの拡声音量とする。
請求項４では請求項１または２において、切り換え手段は、電話機の動作状態に応じて第２の音量調節モードの切り換えを行う。
請求項５では請求項４において、切り換え手段は、電話機が呼び出し中のとき、または電話機が待機中及び呼び出し中のとき、または電話機が呼び出し中及び通話中のとき、第２の音量調節操作手段の音量調節モードを呼び出し音量とする。
請求項６では請求項１において、第１の音量調節操作手段は上と下（または右と左）に配置された音量アップキーと音量ダウンキーであり、第２の音量調節操作手段は第１の音量調節操作手段の近傍で右と左（または上と下）に配置された音量アップキーと音量ダウンキーとしたこと、を特徴としている。
請求項７では請求項６において、音量の表示を行う表示手段と、第１の音量調節操作手段によって音量調節された音量を表示手段に上下（左右）に変化するグラフで表示させ、第２の音量調節操作手段によって音量調節された音量を表示手段に左右（上下）に変化するグラフで表示させる音量表示制御手段と、を備えたことを特徴としている。
【０００５】
請求項８記載の電話機の音量調節装置では、１つの音量調節操作手段を兼用して、複数の音量調節項目を切り換えて個別に音量調節可能とした電話機の音量調節装置において、１つの音量調節操作手段で兼用して、受話器の受話音量、ハンズフリー通話時または留守録音メッセージ再生時の拡声スピーカからの拡声音量を含む調節頻度の高い音声に関係する複数の音量調節項目を切り換えて、個別に音量調節操作を行う第１の音量調節操作手段と、呼び出し音量の音量調節操作を行う第２の音量調節操作手段と、第１の音量調節操作手段の現在の音量調節対象項目を示す第１の音量調節操作手段の音量調節モードの切り換えを行う切り換え手段と、第１の音量調節操作手段が操作されると、その時点での第１の音量調節操作手段の音量調節モードに対応する音量調節項目の音量調節制御をし、第２の音量調節操作手段が操作されると、呼び出し音量の音量調節制御をする音量調節制御手段と、を含むことを特徴としている。
請求項９では請求項８において、切り換え手段は、電話機の動作状態に応じて第１の音量調節操作手段の音量調節モードの切り換えを行う。
請求項１０では請求項９において、切り換え手段は、電話機が受話器による通話中のとき、第１の音量調節操作手段の音量調節モードを受話器の受話音量とし、電話機がハンズフリー通話中または留守録音メッセージ再生中のとき、第１の音量調節操作手段の音量調節モードを拡声スピーカの拡声音量とする。
請求項１１では請求項８において、第１の音量調節操作手段は上と下（または右と左）に配置された音量アップキーと音量ダウンキーであり、第２の音量調節操作手段は第１の音量調節操作手段の近傍で右と左（または上と下）に配置された音量アップキーと音量ダウンキーとしたこと、を特徴としている。
請求項１２では請求項１１において、音量の表示を行う表示手段と、第１の音量調節操作手段によって音量調節された音量を表示手段に上下（左右）に変化するグラフで表示させ、第２の音量調節操作手段によって音量調節された音量を表示手段に左右（上下）に変化するグラフで表示させる音量表示制御手段と、を備えたことを特徴としている。
【０００６】
【発明の実施の形態】
次に、本発明の一つの実施の形態を図１を参照して説明する。図１は本発明に係る音量調節機能付の電話機の構成図である。
１は局側から延設された回線、２は回線１を介して局側の交換機と電話機との接続を行う回線接続部、３は待ち受け中に回線接続部を介して局側から呼び出し音信号が入力されると着信検出信号を出力する着信検出部、４は受話器であり、受話スピーカ５、送話マイク６を有する。受話スピーカ５の前段には音量調節用の電子ボリューム部７とアンプ部８が設けられており、送話マイク６の出力側にはマイクアンプ部９が設けられている。１０は受話器４の上げ下げでオン・オフするフックスイッチ、１１と１２はハンズフリー通話に用いる拡声スピーカとマイクであり、拡声スピーカ１１の前段には音量調節用の電子ボリューム部１３とアンプ部１４が設けられており、マイク１２の出力側にはマイクアンプ部１５が設けられている。１６は録音・再生部であり、留守録モード時に着信が有ると、録音媒体１７に録音された応答メッセージを再生して出力したり、相手のメッセージを録音媒体１８に録音させ、留守録モード解除時に録音媒体１８に録音された相手の留守録音メッセージを再生して出力したりする。１９はビープ音信号を発生するビープ音発生部、２０はキー操作時に確認用のビープ音を出力するビープ音スピーカであり、前段には音量調節用の電子ボリューム部２１とアンプ部２２が設けられている。
【０００７】
２３は通話路スイッチ部であり、後述するコントロール部の制御に従い、待ち受け中に着信が有ると、回線接続部２からの呼び出し音信号を拡声スピーカ１１の側に出力し、受話器４を用いた通話時は回線接続部２からの信号を受話スピーカ５の側へ出力し、送話マイク６からの信号を回線接続部２へ出力する。また、ハンズフリー通話時は回線接続部２からの信号を拡声スピーカ１１の側へ出力し、マイク１２からの信号を回線接続部２へ出力する。更に、留守録モード時に着信が有ると、録音・再生部１６で再生させた応答メッセージを回線接続部２へ出力して相手側に送出させ、回線接続部２からの信号を録音・再生部１６へ出力して相手のメッセージを録音させる。
【０００８】
２４はキー操作部であり、０〜９の数字キー２５1 〜２５10、＊、＃の記号キー２５11、２５12、留守録キー２６、ハンズフリー通話用フックキー２７のほか、音量アップキー２８と音量ダウンキー２９から成る第１の音量調節操作手段３０と、音量アップキー３１と音量ダウンキー３２から成る第２の音量調節操作手段３３が設けられている。第１の音量調節操作手段３０は、１つの音量調整操作手段で兼用して、受話器の受話音量と、ハンズフリー通話時の拡声スピーカからの拡声出力または留守録音メッセージの拡声スピーカからの拡声出力時の拡声音量など、電話機において比較的調節頻度の高い音声に関係する調節項目を切り換えて音量調節するためのものである。第２の音量調節操作手段３３は、１つの音量調整操作手段で兼用して、着信時の呼び出し音量、キー操作確認用のビープ音量など、音声に関係しない電話機において比較的調節頻度の低い調節項目を切り換えて音量調節するためのものである。３４はメモリ部であり、受話器の受話音量データＶＤＲ、拡声スピーカの拡声音量データＶＤＬ、呼び出し音量データＶＤＡ、ビープ音量データＶＤＢが読み書き自在に記憶されている。ＶＤＲ、ＶＤＬ、ＶＤＡ、ＶＤＢはいずれも最小の１から最大の７まで７段階の値を取るものとする。メモリ部３４には、第１の音量調節操作手段３０での現在の音量調節対象項目を示す第１の音量調節モードデータＶＲＭ１と、第２の音量調節操作手段３３での現在の音量調節対象項目を示す第２の音量調節モードデータＶＲＭ２と、拡声スピーカ１１がハンズフリー通話のための拡声出力中または留守録音メッセージの拡声出力中か否かを示すフラグＦ（０；拡声出力中でない、１；拡声出力中）も記憶されている。
【０００９】
３５は表示部であり、第１の音量調節操作手段３０または第２の音量調節操作手段３３で音量調節操作がされたときに、現在の音量調節対象項目名と音量を表示する（図１２、図１３参照）。３６はダイヤル操作時に数値に対応するトーン信号を発生し、回線接続部２を介して回線１の側に出力させるトーン発生部、３７はマイコン構成のコントロール部であり、各部を制御し、待ち受け、発信通話、着信通話、留守録をさせたり、受話器の受話音量、拡声スピーカの拡声音量、呼び出し音量、ビープ音量等の各種音量調節項目の音量調節制御を行う。
【００１０】
図２〜図８はコントロール部３７のメインの制御処理を示すフローチャート、図９〜図１１は周期的に実行される割り込み処理を示すフローチャート、図１２と図１３は音量調節操作時の表示部３５の表示例を示す説明図であり、以下、これらの図を参照して上記した実施の形態の動作を説明する。
なお、予め、ＶＤＲ、ＶＤＬ、ＶＤＡ、ＶＤＢはいずれも標準的な音量４に設定されており、受話器４が持ち上げられていないものとする（フックスイッチ１０がオンフック状態）。
【００１１】
（１）待ち受け
電源がオンすると、コントロール部３７は拡声スピーカ１１が現在ハンズフリー通話のための拡声音声出力中でなく、かつメッセージ出力のための拡声音声出力中でないことを登録するためＦ＝０とし（図２のステップＳ１０）、受話器の受話音量データＶＤＲに基づき電子ボリューム部７に対する音量制御をして標準の受話器の受話音量に設定し、ビープ音量データＶＤＢに基づき電子ボリューム部２１に対する音量制御をして標準のビープ音量に設定し、第２の音量調節操作手段３３の現在の音量調節対象項目を示す第２の音量調節モードデータＶＤＭ２を呼び出し音量とし、第１の音量調節操作手段３０の現在の音量調節対象項目を示す第１の音量調節モードデータＶＤＭ１を受話器の受話音量とし、呼び出し音量データＶＤＡに基づき電子ボリューム部１３に対する音量制御をして標準呼び出し音量に設定する（ステップＳ１１〜Ｓ１５）。そして、待ち受け状態となり、局側から呼び出し音信号が入力されて着信検出部３で着信が検出されたか、受話器４が持ち上げられてフックスイッチ１０がオフフック状態になったか、ハンズフリー通話用フックキー２７のキー操作がされたか、留守録キー２６が操作されたかのチェックをする（ステップＳ１６〜Ｓ１９）。
【００１２】
（２）待ち受け中の受話器の受話音量の調節
ここで、待ち受け中に受話器の受話音量を大きく（小さく）しておきたい場合、第１の音量調節操作手段３０の音量アップキー２８（音量ダウンキー２９）を単独で１回押す。すると、コントロール部３７は、図９のステップＳ２００（ステップＳ２０９）でＹＥＳと判断し、ビープ音発生部１９を制御し、短時間だけビープ音信号を発生させ、ビープ音スピーカ２０から標準ビープ音量でキー操作確認用のビープ音を出力させる（ステップＳ２０１（Ｓ２１０））。第１の音量調節モードが現在、受話器の受話音量なのでＶＤＲを１段階大きく（小さく）する（ステップＳ２０２、Ｓ２０３（Ｓ２１１、Ｓ２１２））。そして、ＶＤＲに基づき電子ボリューム部７に対する音量制御をし、受話器の受話音量を１段階増大（減少）させる（ステップＳ２０４）。そして、表示部３５にＶＤＲに基づき現在の受話器受話音量と第１の音量調節操作手段３０の現在の音量調節対象項目名を、第１の音量調節操作手段３０のキー配置と同じく縦方向のバーグラフで一定時間表示させる（ステップＳ２０５、図１２の（１）参照）。受話器の受話音量のバーグラフ表示が第１の音量調節操作手段３０のキー配置と同じ方向でなされるので、所望の音量調節項目について正しく操作しているか容易に判断できる。
【００１３】
（３）呼び出し
待ち受け中に局側から自機宛に呼び出し音信号が送出されると、回線接続部２を介して着信検出部３に入力され、該着信検出部３は着信検出信号を出力する。すると、コントロール部３７は着信有りと判断し（図２のステップＳ１６でＹＥＳ）、通話路スイッチ部２３を制御して回線接続部２からの入力が拡声スピーカ１１の側へ出力されるようにする（図３のステップＳ２０）。これにより、拡声スピーカ１１からは標準の音量で呼び出し音が出力される。
【００１４】
（４−１）受話器での通話
このあと、コントロール部３７はフックスイッチ１０がオフフック状態になったか、ハンズフリー通話用フックキー２７が押されたか、着信検出部３で呼び出し音が検出されなくなったかチェックし（ステップＳ２１〜Ｓ２３）、受話器４で通話するため受話器４を持ち上げると、フックスイッチ１０がオフフック状態となるので、コントロール部３７はステップＳ２１でＹＥＳと判断し、回線接続部２をオフフック制御して、相手方との通話状態に移行させ（ステップＳ２４）、また、通話路スイッチ部２３を制御して回線接続部２からの入力が受話器４の受話スピーカ５の側へ出力され、送話マイク６の側からの入力が回線接続部２へ出力されるようにし、受話器４での通話を可能とする（ステップＳ２５）。相手方からの音声はユーザ所望の受話音量で聴取できる。
【００１５】
（４−２）受話器で通話中の受話音量の調節
若し、受話器４での受話音量がまだ小さい（大きい）場合、受話器４での通話中に、第１の音量調節操作手段３０の音量アップキー２８（音量ダウンキー２９）を１回押す。すると、コントロール部３７は短時間だけビープ音を出力させ、第１の音量調節操作手段３０の音量調節モードが現在、受話器の受話音量なのでＶＤＲを１段階大きく（小さく）する（図９のステップＳ２００〜Ｓ２０３（Ｓ２０９〜Ｓ２１２））。そして、ＶＤＲに基づき電子ボリューム部７に対する音量制御をし、受話器の受話音量を１段階増大（減少）させる（ステップＳ２０４）。そして、表示部３５にＶＤＲに基づき現在の受話器受話音量と第１の音量調節操作手段３０の現在の音量調節対象項目名を、第１の音量調節操作手段３０のキー配置と同じく縦方向のバーグラフで一定時間表示させる（ステップＳ２０５）。
【００１６】
（４−３）終話
相手方との通話が終わり、ユーザが受話器４を置くとフックスイッチ１０が開いてオンフック状態となる。すると、コントロール部３７は図３のステップＳ２６でＹＥＳと判断し、回線接続部２に対しオンフック制御をして通話を終了させ（ステップＳ２７）、図２のステップＳ１６に戻り待機状態となる。
【００１７】
（５−１）ハンズフリー通話モードでの通話
若し、着信があったとき、手が塞がっているなどしてハンズフリー通話をしたい場合、受話器４は置いた状態のままハンズフリー通話用フックキー２７を１回押す。すると、コントロール部３７はステップＳ２２でＹＥＳと判断し、短時間だけビープ音を出力させ、ハンズフリー通話モードとなり、回線接続部２をオフフック制御して、相手方との通話状態に移行させ、Ｆ＝１とし、第１の音量調節モードデータＶＤＭ１を拡声音量とし、拡声音量データＶＤＬに基づき電子ボリューム部１３に対する音量制御をして標準の拡声音量に設定し、また、通話路スイッチ部２３を制御して回線接続部２からの入力が拡声スピーカ１１の側へ出力され、マイク１２の側からの入力が回線接続部２へ出力されるようにし、マイク１２と拡声スピーカ１１を用いたハンズフリー通話が可能とする（図４のステップＳ３０〜Ｓ３６）。相手方からの音声は拡声スピーカ１１からユーザ所望の拡声音量で聴取できる。
【００１８】
（５−２）ハンズフリー通話中の拡声音量の調節
若し、拡声スピーカ１１からの拡声音量が小さい（大きい）場合、ハンズフリー通話中に、第１の音量調節操作手段３０の音量アップキー２８（音量ダウンキー２９）を１回押す。すると、コントロール部３７は短時間だけビープ音を出力させ、第１の音量調節操作手段３０の音量調節モードが現在、拡声音量なのでＶＤＬを１段階大きく（小さく）する（図９のステップＳ２００〜Ｓ２０２、Ｓ２０６（Ｓ２０９〜Ｓ２１１、Ｓ２１３））。そして、ＶＤＬに基づき電子ボリューム部１３に対する音量制御をし、拡声音量を１段階増大（減少）させる（ステップＳ２０７）。これにより相手の声が聞きやすくなる。そして、表示部３５にＶＤＬに基づき現在の受話器の受話音量と第１の音量調節操作手段３０の音量調節対象項目名を、第１の音量調節操作手段３０のキー配置と同じく縦方向のバーグラフで一定時間表示させる（ステップＳ２０８。図１２の（２）参照）。拡声音量のバーグラフ表示も第１の音量調節操作手段３０のキー配置と同じ方向でなされるので、所望の音量調節項目について正しく操作しているか容易に判断できる。
【００１９】
（５−３）終話
相手方との通話が終わり、ハンズフリー通話用フックキー２７を１回押すと、コントロール部３７は図４のステップＳ３７でＹＥＳと判断し、短時間だけビープ音を出力させ、ハンズフリー通話モードを解除し、回線接続部２に対しオンフック制御をして通話を終了させ、Ｆ＝０としたのち（ステップＳ３８〜Ｓ４１）、図２のステップＳ１４に戻り、第１の音量調節モードデータＶＤＭ１を受話器の受話音量とし、呼び出し音量データＶＤＡに基づき電子ボリューム部１３に対する音量制御をしてユーザ所望の呼び出し音量に設定し（ステップＳ１５）、待機状態となる。
【００２０】
（６−１）受話器での発信通話
ユーザから発信し、受話器４で通話したい場合、まず受話器４を持ち上げるとフックスイッチ１０がオフフック状態となるので、コントロール部３７は図２のステップＳ１７でＹＥＳと判断し、回線制御部２に対しオフフック制御をし、通話路スイッチ部２３を制御して回線制御部２からの入力が受話器４の受話スピーカ５の側へ出力されるようにし、送話マイク６の側からの入力が回線制御部２へ出力されるようにする（図５のステップＳ５０、Ｓ５１）。そして、相手の電話番号が１２３−４５６７の場合、「１」キー２５1 、「２」キー２５2 、「３」キー２５3 、「４」キー２５4 、「５」キー２５5 、「６」キー２５6 、「７」キー２５7 の順に１回ずつ押す。まず「１」キー２５1 を１回押したとき、コントロール部３７は、短時間だけビープ音を出力させ、トーン発生部３６を制御してダイヤル数値「１」に対応するトーン信号を発生させ、回線接続部２を介して局側に送出させる（ステップＳ５２〜Ｓ５４）。他のキーが押されたときも同様にして短時間だけビープ音を出力させ、数値に対応するトーン信号を発生させて局側へ出力させる。
相手側が電話に出ると、通話接続状態となり、相手方からの音声は受話スピーカ５からユーザ所望の受話音量で聴取できる。
【００２１】
（６−２）受話器で通話中の受話音量の調節
若し、受話器４での受話音量がまだ小さい（大きい）場合、受話器４での通話中に、第１の音量調節操作手段３０の音量アップキー２８（音量ダウンキー２９）を１回押す。すると、コントロール部３７は短時間だけビープ音を出力させ、第１の音量調節操作手段３０の音量調節モードが現在、受話器の受話音量なのでＶＤＲを１段階大きく（小さく）する（図９のステップＳ２００〜Ｓ２０３（Ｓ２０９〜Ｓ２１２））。そして、ＶＤＲに基づき電子ボリューム部７に対する音量制御をし、受話器の受話音量を１段階増大（減少）させる（ステップＳ２０４）。そして、表示部３５にＶＤＲに基づき現在の受話器受話音量と第１の音量調節操作手段３０の音量調節対象項目名を、第１の音量調節操作手段３０のキー配置と同じく縦方向のバーグラフで一定時間表示させる（ステップＳ２０５）。
【００２２】
（６−３）終話
相手方との通話が終わり、ユーザが受話器４を置くとフックスイッチ１０が開いてオンフック状態となる。すると、コントロール部３７は図５のステップＳ５５でＹＥＳと判断し、回線接続部２に対しオンフック制御をして通話を終了させ（ステップＳ５６）、図２のステップＳ１６に戻り待機状態となる。
【００２３】
（７−１）ハンズフリー通話モードでの発信通話
これと異なり、ユーザから発信し、マイク１２と拡声スピーカ１１を用いてハンズフリー通話をしたい場合、ハンズフリー通話用フックキー２７を１回押すとコントロール部３７は図２のステップＳ１８でＹＥＳと判断し、短時間だけビープ音を出力させ、ハンズフリー通話モードとなり、回線接続部２をオフフック制御して、相手方との通話状態に移行させ、Ｆ＝１とし、第１の音量調節モードデータＶＤＭ１を拡声音量とし、拡声音量データＶＤＬに基づき電子ボリューム部１３に対する音量制御をして所望の拡声音量に設定し、また、通話路スイッチ部２３を制御して回線接続部２からの入力が拡声スピーカ１１の側へ出力され、マイク１２の側からの入力が回線接続部２へ出力されるようにする（図６のステップＳ６０〜Ｓ６６）。そして、相手の電話番号が１２３−４５６７の場合、「１」キー２５1 、「２」キー２５2 、「３」キー２５3 、「４」キー２５4 、「５」キー２５5 、「６」キー２５6 、「７」キー２５7 の順に１回ずつ押す。数値キーが押される度に、コントロール部３７は、短時間だけビープ音を出力させ、トーン発生部３６を制御してダイヤル数値に対応するトーン信号を発生させ、回線接続部２を介して局側に送出させる（ステップＳ６７〜Ｓ６９）。
相手側が電話に出ると、通話接続状態となり、相手方からの音声は拡声スピーカ１１からユーザ所望の拡声音量で聴取できる。
【００２４】
（７−２）ハンズフリー通話中の拡声音量の調節
若し、ハンズフリー通話中における拡声スピーカ１１からの拡声音量がまだ小さい（大きい）場合、ハンズフリー通話中に、第１の音量調節操作手段３０の音量アップキー２８（音量ダウンキー２９）を１回押す。すると、コントロール部３７は短時間だけビープ音を出力させ、第１の音量調節操作手段３０の音量調節モードが現在、拡声音量なのでＶＤＬを１段階大きく（小さく）する（図９のステップＳ２００〜Ｓ２０２、Ｓ２０６（Ｓ２０９〜Ｓ２１１、Ｓ２１３））。そして、ＶＤＬに基づき電子ボリューム部１３に対する音量制御をし、拡声音量を１段階増大（減少）させる（ステップＳ２０７）。これにより相手の声が聞きやすくなる。そして、表示部３５にＶＤＬに基づき現在の受話器受話音量と第１の音量調節操作手段３０の音量調節対象項目名を、第１の音量調節操作手段３０のキー配置と同じく縦方向のバーグラフで一定時間表示させる（ステップＳ２０８）。
【００２５】
（７−３）終話
相手方との通話が終わり、ハンズフリー通話用フックキー２７を１回押すと、コントロール部３７は図６のステップＳ７０でＹＥＳと判断し、短時間だけビープ音を出力させ、ハンズフリー通話モードを解除し、回線接続部２に対しオンフック制御をして通話を終了させ、Ｆ＝０としたのち（ステップＳ７１〜Ｓ７４）、図２のステップＳ１４に戻り、第１の音量調節モードデータＶＤＭ１を受話器の受話音量とし、呼び出し音量データＶＤＡに基づき電子ボリューム部１３に対する音量制御をしてユーザ所望の呼び出し音量に設定し（ステップＳ１５）、待機状態となる。
【００２６】
（８−１）留守録モード
若し、ユーザが留守にするため電話機を留守録モードに設定したい場合、待ち受け中に留守録キー２６を１回押す。すると、コントロール部３７は図２のステップＳ１９でＹＥＳと判断し、短時間だけビープ音を発生させて留守録モードとなり、通話路スイッチ部２３を制御して回線制御部２からの入力が録音・再生部１６の録音入力端子（ＩＮ）の側へ出力されるようにし、録音・再生部１６の再生出力端子（ＯＵＴ）の側からの入力が回線制御部２へ出力されるようにする。そして録音回数を示すＫを０とし、着信検出部３で着信が検出されか、留守録キー２６が押されるのを待つ（図７のステップＳ８０〜Ｓ８５）。
【００２７】
（８−２）留守録モード中の着信
留守録モード中に外部から着信が有ると、コントロール部３７はステップＳ８４でＹＥＳと判断し、回線接続部２をオフフック制御し、録音・再生部１６を制御し、録音媒体１７に録音された応答メッセージ、たとえば「留守にしております。ご用件をお話し下さい。」を再生させ、相手側に送出させる。そして、録音・再生部１６を制御し、相手方の要件を録音媒体１８に先頭から一定時間分録音させる。そして、録音回数を示すＫを１とし、回線接続部２をオンフック制御する（ステップＳ８６〜Ｓ９０）。
【００２８】
外部から２回目の着信が有ると、コントロール部３７は図７のステップＳ１００でＹＥＳと判断し、回線接続部２をオフフック制御し、録音・再生部１６を制御し、録音媒体１７に録音された応答メッセージを再生させ、続いて、相手方の要件を録音媒体１８に前回録音した続きの箇所から一定時間分録音させる。そして、録音回数を示すＫを２とし、回線接続部２をオンフック制御する（ステップＳ８４、Ｓ８６〜Ｓ９２）。
【００２９】
（８−３）メッセージの再生
外出先から戻ったユーザが留守録モードを解除したい場合、留守録キー２６を１回押す。すると、コントロール部３７はステップＳ８５でＹＥＳと判断し、短時間だけビープ音を発生させて留守録モードを解除する。そして、Ｆ＝１とし、音量調節モードＶＤＭ１を拡声音量とし、ＶＤＬに基づき電子ボリューム部１３に対する音量制御をし、所望の拡声音量とする（ステップＳ１００〜Ｓ１０５）。通話路スイッチ部２３を制御して録音・再生部１６の再生出力端子ＯＵＴの側からの入力が拡声スピーカ１１の側へ出力されるようにする。そして、今回の留守録中の録音回数が１以上かチェックし、ＮＯであれば、録音・再生部１６を制御し、録音媒体１７に録音された案内メッセージ、たとえば「録音メッセージは有りません」を再生させ、拡声スピーカ１１から拡声出力させる（ステップＳ１０６でＮＯ、Ｓ１０７）。録音回数が１以上であれば、録音・再生部１６を制御し、録音媒体１８に録音された相手方からの各メッセージを順に再生させる。ユーザは拡声スピーカ１１から相手方の録音した用件を所望の拡声音量で聴取できる。メッセージの再生が終われば、Ｆ＝０、音量調節モードＶＤＭ１を受話器の受話音量としたのち、待ち受け状態となる（ステップＳ１０８、Ｓ１０９、図２のステップＳ１４、Ｓ１５）。
【００３０】
（８−４）メッセージの再生音量の調節
若し、相手方のメッセージの声が小さすぎる（大き過ぎる）ため、メッセージの再生音量を増大（減少）したい場合、メッセージが拡声出力されている間（第１の音量調節モードが拡声音量となっている間）に、第１の音量調節操作手段３０の音量アップキー２８（音量ダウンキー２９）を１回押す。すると、コントロール部３７は短時間だけビープ音を出力させ、第１の音量調節操作手段３０の音量調節モードが現在、拡声音量なのでＶＤＬを１段階大きく（小さく）する（図９のステップＳ２００〜Ｓ２０２、Ｓ２０６（Ｓ２０９〜Ｓ２１１、Ｓ２１３））。そして、現在、Ｆ＝１なのでＶＤＬに基づき電子ボリューム部１３に対する音量制御をし、拡声音量を１段階増大（減少）させる（ステップＳ２０７）。これにより相手の声が聞きやすくなる。そして、表示部３５にＶＤＬに基づき現在の拡声音量と第１の音量調節操作手段３０の音量調節対象項目名を、第１の音量調節操作手段３０のキー配置と同じく縦方向のバーグラフで一定時間表示させる（ステップＳ２０８）。
【００３１】
（９）呼び出し音量の調節
若し、着信時の呼び出し音が標準音量では小さかった（大きかった）ため、大きく（小さく）したい場合、待機中（待ち受け中）、呼び出し中、通話中、留守録モード中等の任意のタイミングで、第２の音量調節操作手段３３の音量アップキー３１（音量ダウンキー３２）を単独で１回押す。すると、コントロール部３７は図１０のステップＳ２２０（図１１のステップＳ２４０）でＹＥＳと判断し、音量ダウンキー３２（音量アップキー３１）が同時押しされたか判別し（ステップＳ２２１（Ｓ２４１））、ＮＯなので、ビープ音発生部１９を制御し、短時間だけビープ音信号を発生させ、ビープ音スピーカ２０からビープ音を出力させる（ステップＳ２２２（Ｓ２４２））。そして、第２の音量調節操作手段３３の現在の音量調節対象項目である第２の音量調節モードが呼び出し音量なので呼び出し音量データＶＤＡを１段階大きく（小さく）する（ステップＳ２２３、Ｓ２２４（Ｓ２４３、Ｓ２４４））。
【００３２】
そして、Ｆ＝０であり、拡声スピーカ１１を用いてハンズフリー通話中でなくメッセージ再生出力中でもなければ、呼び出し音量データＶＤＡに基づき電子ボリューム部１３に対する音量制御をし、呼び出し音量を１段階増大（減少）させる（ステップＳ２２５、Ｓ２２６（Ｓ２４５、Ｓ２４６））。そして、表示部３５にＶＤＡに基づき現在の呼び出し音量と音量調節対象項目名を、第２の音量調節操作手段３３のキー配置と同じく横方向のバーグラフで一定時間表示させる（ステップＳ２２７（Ｓ２４７）。図１３の（１）参照）。呼び出し音量のバーグラフ表示が第２の音量調節操作手段３３のキー配置と同じ方向でなされるとともに、受話器の受話音量や拡声音量とは直交する方向になされるので、所望の音量調節項目について正しく操作しているか容易に判断できる。
若し、ステップＳ２２５（Ｓ２４５）でＦ＝１のときは、次にＦ＝０となった所で、呼び出し音量データＶＤＡに基づき電子ボリューム部１３に対する音量制御をし、呼び出し音量を１段階増大（減少）させる（図４のステップＳ４１または図６のステップＳ７４または図８のステップＳ１０９、図２のステップＳ１４、Ｓ１５）。
【００３３】
呼び出し音量の増大（減少）操作の結果、その後の呼び出し音の音量が１段階増大（減少）するので、聴きやすくなる。しかも、呼び出し音の音量調節頻度は比較的小さいが、受話器の受話音量や拡声音量の如く比較的音量調節頻度の高い音量調節項目用の第１の音量調節操作手段３０ではなく、第１の音量調節操作手段３０とは別個に設けた第２の音量調節操作手段３３を用いて呼び出し音の音量調節を行うようになっているので、音量調節項目と音量調節操作手段との対応関係が判りやすい。よって、呼び出し音量の調節をしたいのに、間違って第１の音量調節操作手段３０を操作し、呼び出し音量以外の項目を調節してしまう恐れが小さくなる。また、呼び出し音量の調節操作をいつでも行うことができる。
【００３４】
（１０）ビープ音量の調節
また、キー操作確認音としてのビープ音量を標準音量から変えたい場合、待機中（待ち受け中）、呼び出し中、通話中、留守録モード中等の任意のタイミングで、第２の音量調節操作手段３３の音量アップキー３１と音量ダウンキー３２を同時押しする。すると、コントロール部３７は図１０のステップＳ２２０（図１１のステップＳ２４０）でＹＥＳと判断し、音量ダウンキー３２（音量アップキー３１）が同時押しされたか判別し（ステップＳ２２１（Ｓ２４１））、ここでもＹＥＳなので、ビープ音発生部１９を制御し、短時間だけビープ音信号を発生させ、ビープ音スピーカ２０からビープ音を出力させる（ステップＳ２２８（Ｓ２４８））。そして、今回、音量アップキー３１と音量ダウンキー３２が同時押しされたことから、第２の音量調節モードの変更操作がされたと判断し、第２の音量調節モードを或る一定時間Ｔ0 （例えば、Ｔ0 ＝２０秒）だけビープ音量とする。具体的には、第２の音量調節モードをビープ音量とし、タイマをスタートさせる（ステップＳ２２９、Ｓ２３０（ステップＳ２４９、Ｓ２５０））。そして、タイマが計時中の間タイマの計時時間ｔがＴ0 以上になったかチェックし（図１１のステップＳ２５４、Ｓ２５５）、ｔがＴ0 以上になれば第２の音量調節モードを呼び出し音量に戻し、タイマを停止させる（ステップＳ２５６、Ｓ２５７）。
【００３５】
第２の音量調節モードが一定時間Ｔ0 だけビープ音量となっている間に、第２の音量調節操作手段３３の音量アップキー３１（音量ダウンキー３２）が単独で１回押されると、コントロール部３７は、ビープ音発生部１９を制御し、短時間だけビープ音を出力させる（図１０のステップＳ２２０〜Ｓ２２２（図１１のステップＳ２４０〜Ｓ２４２））。そして、今回、音量アップキー３１（音量ダウンキー３２）が単独で押されたことから、第２の音量調節操作手段３３の現在の音量調節対象項目に対する音量調節操作がされたと判断し、第２の音量調節モードがビープ音量なのでビープ音量データＶＤＢを１段階大きく（小さく）する（ステップＳ２２３、Ｓ２３１（Ｓ２４３、Ｓ２５１））。そして、ＶＤＢに基づき電子ボリューム部２１に対する音量制御をし、ビープ音量を１段階増大（減少）させる（ステップＳ２３２（Ｓ２５２））。そして、表示部３５にＶＤＢに基づき現在のビープ音量と音量調節対象項目名を、第２の音量調節操作手段３３のキー配置と同じく横方向のバーグラフで一定時間表示させる（ステップＳ２３３（Ｓ２５３））。これにより、その後のビープ音の音量が１段階増大（減少）するので、聴きやすくなる。また、ビープ音量のバーグラフ表示が第２の音量調節操作手段３３のキー配置と同じ方向でなされるとともに、受話器の受話音量や拡声音量とは直交する方向になされるので、所望の音量調節項目について正しく操作しているか容易に判断できる。
【００３６】
しかも、ビープ音の音量調節頻度は比較的小さいが、受話器の受話音量や拡声音量の如く比較的音量調節頻度の高い音量調節項目用の第１の音量調節操作手段３０ではなく、第１の音量調節操作手段３０とは別個に設けた第２の音量調節操作手段３３を用いてビープ音の音量調節を行うようになっているので、音量調節項目と音量調節操作手段との対応関係が判りやすい。よって、ビープ音量の調節をしたいのに、間違って第１の音量調節操作手段３０を操作し、呼び出し音量以外の項目を調節してしまう恐れが小さくなる。
【００３７】
この実施の形態によれば、受話器の受話音量と、ハンズフリー通話時の拡声スピーカの拡声音量または留守録音メッセージの再生時の拡声スピーカの拡声音量の如く、音量調節頻度が比較的高い音声に関係する音量調節項目は、第１の音量調節操作手段３０により兼用して、音量調節モードを切り換えて個別に音量調節するようにし、呼び出し音量とビープ音量の如く、音量調節頻度が比較的小さい音声に関係しない音量調節項目は、第１の音量調節操作手段３０とは別に設けた第２の音量調節操作手段３３により兼用して、音量調節モードを切り換えて個別に音量調節するようにしたので、音量調節項目と音量調節操作手段との対応関係が判りやすい。具体的には、通話中の相手の声の大小や、留守録音メッセージの声の大小に応じて、頻繁に調節する音声に関係する項目は同じ操作手段を繰り返し使用することで、操作間違いが少なくなる。一方、まれにしか調節することのない音声に関係しない項目は、音声に関して使用する操作手段とは異なる操作手段を用いることがすぐに判るので、操作間違いが少なくなる。よって、受話器の受話音量や拡声スピーカの拡声音量の調節をしたいのに、間違って第２の音量調節操作手段３３を操作し、音声に関係しない項目を調節してしまう恐れが小さくなり、同様に、呼び出し音量やビープ音量の調節をしたいのに、間違って第１の音量調節操作手段３０を操作し、音声に関係する項目を調節してしまう恐れが小さくなる。
また、第１の音量調節操作手段３０では音声に関係する或る特定の調節項目しか調節できない場面でも、第２の音量調節操作手段３３を用いて呼び出し音等の音声に関係しない項目の調節が可能である。
【００３８】
そして、第１の音量調節操作手段３０の音量調節モードは、受話器での通話中は自動的に受話器の受話音量に切り換わり、ハンズフリー通話モードにより拡声スピーカ１１から相手方の音声を拡声出力中またはメッセージを拡声スピーカ１１から音声出力中は自動的に拡声スピーカの拡声音量に切り換わる。よって、受話器での通話中に受話音量が小さい（大きい）と思ったとき、すぐに第１の音量調節操作手段３０で音量調節操作をすれば受話中の音量をすぐに増大（減少）でき、ハンズフリー通話モードにより拡声スピーカ１１から相手方の音声を拡声出力中またはメッセージを拡声スピーカ１１から音声出力中に拡声音量が小さい（大きい）と思ったとき、すぐに第１の音量調節操作手段３０で音量調節操作をすれば拡声音量をすぐに増大（減少）できるので、第１の音量調節操作手段３０の音量調節モードをユーザがマニュアル操作で切り換えなくて済み、便利である。待機中は、第１の音量調節操作手段３０の音量調節モードは、自動的に受話器の受話音量に切り換わるので、待機中に受話器の受話音量を調節することもできる。
【００３９】
また、第２の音量調節操作手段３３の音量調節モードは、通常は呼び出し音量に切り換わっているので、呼び出し音の出力中に呼び出し音量が小さい（大きい）と思ったとき、すぐに第２の音量調節操作手段３３で音量調節操作をすれば呼び出し中の呼び出し音量をすぐに増大（減少）でき、呼び出し後の通話中や通話後に、第２の音量調節操作手段３３で音量調節操作をすれば次の呼び出し時の呼び出し音量を増大（減少）できるなど、所望時に呼び出し音量を調節できる。
また、第２の音量調節操作手段３３の音量アップキー３１と音量ダウンキー３２を同時押しすることで、第２の音量調節操作手段３３の音量調節モードを一時的にビープ音量とすることができ、第２の音量調節操作手段３３の音量調節モードがビープ音量となっている間に第２の音量調節操作手段３３で音量調節操作をすれば次にビープ音を発生する際のビープ音量を増大（減少）できる。
【００４０】
また、第１の音量調節操作手段３０は上と下に配置された音量アップキー２８と音量ダウンキー２９とし、第２の音量調節操作手段３３は第１の音量調節操作手段３０の近傍で右と左に配置された音量アップキー３１と音量ダウンキー３２としたことで、音量調節操作をキー操作部２４の特定箇所で集中して行えるため、音量調節の操作場所を探さなくて済み、第１の音量調節操作手段３０と第２の音量調節操作手段３３とでキーの配置方向を９０°変えたことで第１の音量調節操作手段３０と第２の音量調節操作手段３３の混同による操作ミスを防ぐことができる。
また、受話器の受話音量と拡声スピーカの拡声音量の如く、音量調節頻度が比較的高い音声に関係する音量調節項目の音量調節をした場合と、呼び出し音量とビープ音量の如く音量調節頻度が比較的低い音声に関係しない音量調節項目の音量調節をした場合とで、音量アップキーと音量ダウンキーのキー配置方向に合わせて音量のバーグラフ表示方向が変わるようにしたため、音量調節項目と音量調節操作手段との対応関係が視覚的にも判りやすくなり、誤操作の恐れが一層少なくなる。
【００４１】
なお、上記した実施の形態では、第２の音量調節操作手段は呼び出し音量の調節操作とビープ音量の調節操作を兼用して行えるようにしたが、呼び出し音量の調節操作だけ行えるようにしても良い。この場合、呼び出し音量の調節操作は待機中、呼び出し中、通話中等の電話機の動作状態によらず、いつでも行える。
【００４２】
また、上記した実施の形態では、通常は第２の音量調節モードを呼び出し音量として呼び出し音量の調節操作は殆どいつでもできるようにし、ビープ音量の調節操作は、一時的に第２の音量調節モードを呼び出し音量からビープ音量に切り換えている間だけできるようにしたが、反対に、通常は第２の音量調節モードをビープ音量としてビープ音量の調節操作は殆どいつでもできるようにし、呼び出し音量の調節操作は、第２の音量調節操作手段３３の音量アップキー３１と音量ダウンキー３２を同時押しするなどして、一時的に第２の音量調節モードをビープ音量から呼び出し音量に切り換えている間だけできるようにしても良い。
【００４３】
また、電話機の動作状態に応じて、呼び出し中（呼び出し中と通話中）は第２の音量調節モードを強制的に呼び出し音量とし、呼び出し中（呼び出し中と通話中）以外は、通常は呼び出し音量とし、音量アップキー３１と音量ダウンキー３２の同時押し等のユーザのモード切り換え操作がされたとき、或る時間だけ一時的にビープ音量としても良い。具体的には、図９〜図１１の割り込み処理の内、図１１の部分を図１４の如く変形し、ステップＳ２５５でＮＯとなったとき、ステップＳ２５８へ進み呼び出し中（呼び出し中または通話中）かチェックし（呼び出し中か否かのチェックは例えば着信検出部３の出力を監視して行うことができ、通話中か否かのチェックは例えば、フックスイッチ１０がオフフック状態に有るか否かと（フックスイッチ１０がオフフック状態にあるときは通話中とする）、ハンズフリー通話モードとなっているか否かのチェックで簡単に行える）、ＹＥＳであれば、第２の音量調節モードを強制的に呼び出し音量とすれば良い（ステップＳ２５６、Ｓ２５７）。
【００４４】
また、これと異なり、電話機の動作状態に応じて、呼び出し中（呼び出し中と通話中）は第２の音量調節モードを強制的に呼び出し音量とし、呼び出し中（呼び出し中と通話中）以外は、通常はビープ音量とし、音量アップキー３１と音量ダウンキー３２の同時押し等のユーザのモード切り換え操作がされたとき、或る時間だけ一時的に呼び出し音量としても良い。
【００４５】
また、電話機の動作状態に応じて、待機中（待機中と呼び出し中）は第２の音量調節モードを強制的に呼び出し音量とし、待機中（待機中と呼び出し中）以外は、通常は呼び出し音量とし、音量アップキー３１と音量ダウンキー３２の同時押し等のユーザのモード切り換え操作がされたとき、或る時間だけ一時的にビープ音量としても良い。また、待機中（待機中と呼び出し中）は第２の音量調節モードを強制的に呼び出し音量とし、待機中（待機中と呼び出し中）以外は、通常はビープ音量とし、音量アップキー３１と音量ダウンキー３２の同時押し等のユーザのモード切り換え操作がされたとき、或る時間だけ一時的に呼び出し音量としても良い。
【００４６】
また、第１の音量調節操作手段３０は上と下に配置された音量アップキー２８と音量ダウンキー２９とし、第１の音量調節操作手段３０で音量調節操作されたときの音量は上下に変化するバーグラフで表示するようにし、第２の音量調節操作手段３３は左と右に配置された音量アップキー３１と音量ダウンキー３２とし、第２の音量調節操作手段３３で音量調節操作されたときの音量は左右に変化するバーグラフで表示するようにしたが、反対に、第１の音量調節操作手段３０は左と右に配置された音量アップキー３１と音量ダウンキー３２とし、第１の音量調節操作手段３０で音量調節操作されたときの音量は図１３の如く、左右に変化するバーグラフで表示するようにし、第２の音量調節操作手段３３は上と下に配置された音量アップキー２８と音量ダウンキー２９とし、第２の音量調節操作手段３３で音量調節操作されたときの音量は図１２の如く、上下に変化するバーグラフで表示するようにしても良い。
また、電話機は固定電話機のほか携帯電話機、ＰＨＳなどにも同様に適用することができる。
【００４７】
【発明の効果】
本発明によれば、例えば受話器の受話音量と拡声スピーカの拡声音量の如く、音量調節頻度が比較的高い音声に関係する音量調節項目は、第１の音量調節操作手段により兼用して、音量調節モードを切り換えて個別に音量調節するようにし、例えば呼び出し音量とビープ音量の如く、音量調節頻度が比較的小さい音声に関係しない音量調節項目は、第１の音量調節操作手段とは別に設けた第２の音量調節操作手段により音量調節するようにしたので、音量調節項目と音量調節操作手段との対応関係が判りやすくなり、誤操作の恐れが減る。
【図面の簡単な説明】
【図１】本発明の一つの実施の形態に係る音量調節機能付の電話機の構成図である。
【図２】コントロール部のメインの制御処理を示すフローチャートである。
【図３】コントロール部のメインの制御処理を示すフローチャートである。
【図４】コントロール部のメインの制御処理を示すフローチャートである。
【図５】コントロール部のメインの制御処理を示すフローチャートである。
【図６】コントロール部のメインの制御処理を示すフローチャートである。
【図７】コントロール部のメインの制御処理を示すフローチャートである。
【図８】コントロール部のメインの制御処理を示すフローチャートである。
【図９】コントロール部の割り込み処理を示すフローチャートである。
【図１０】コントロール部の割り込み処理を示すフローチャートである。
【図１１】コントロール部の割り込み処理を示すフローチャートである。
【図１２】第１の音量調節操作手段が操作されたときの音量表示の説明図である。
【図１３】第２の音量調節操作手段が操作されたときの音量表示の説明図である。
【図１４】図１１の変形例に係るフローチャートである。
【符号の説明】
１ 回線 ２ 回線接続部
３ 着信検出部 ４ 受話器
５ 受話スピーカ ６ 送話マイク
７、１３、２１ 電子ボリューム部 １０ フックスイッチ
１１ 拡声スピーカ １２ マイク
１６ 録音・再生部 １７、１８ 録音媒体
１９ ビープ音発生部 ２０ ビープ音スピーカ
２４ キー操作部 ２６ 留守録キー
２７ ハンズフリー通話用フックキー
２８、３１ 音量アップキー ２９、３２ 音量ダウンキー
３０ 第１の音量調節操作手段 ３３ 第２の音量調節操作手段
３４ メモリ部 ３５ 表示部
３６ トーン発生部 ３７ コントロール部[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a volume control apparatus for a telephone, and more particularly, a volume control apparatus for a telephone capable of individually adjusting the volume of a receiver, the loudness of a loudspeaker during a hands-free call or an answering message, and the ringing volume. About.
[0002]
[Prior art]
The phone has a volume adjustment function so that it can always be used at the optimum volume regardless of the usage environment and individual differences of users. However, the telephone has a number of volume adjustment items such as the reception volume during a call with the handset, the loudness of the loudspeaker during a hands-free call or message recording, and the ringing volume. If the volume adjusting operation means is provided, a large number of operation means are required, resulting in a large telephone. For this reason, conventionally, a single volume adjustment operation means is also used, and a plurality of volume adjustment items such as a reception volume and a ringing volume during a call on the handset are automatically switched according to the operating state of the telephone, and the volume is individually set. It is adjustable.
[0003]
[Problems to be solved by the invention]
However, in the conventional telephone that adjusts the volume by using one volume adjustment operation means, the adjustment target is uniquely determined by the operation state of the telephone when the volume adjustment operation is performed. Sometimes it was too loud, so after picking up the handset, if you hurry and try to reduce the ringing volume, you could make an operational error that the incoming volume would be low because the call was already in a talking state there were. Also, since the reception volume is adjusted relatively frequently according to the volume of the other party's voice, the user is used to adjusting the reception volume using a single volume adjustment operation means, and the reception volume is low during a call. In some cases, the volume may be adjusted using the dual volume adjusting operation means after a call in an attempt to increase the received volume. Then, the ringing volume changed instead of the received volume, and there was a surprise in the loud ringing tone.
The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a volume control device for a telephone that reduces erroneous operations.
[0004]
[Means for Solving the Problems]
In the volume control device for a telephone set according to claim 1, in a telephone that can be used as a single volume adjustment operation unit and can be individually adjusted by switching a plurality of volume adjustment items, the single volume adjustment operation unit is also used. Switch the volume control items individually related to high-frequency sound, including the volume of the receiver, the volume of the loudspeaker from the loudspeaker during a hands-free call or voice recording A second volume adjustment operation unit is switched between a plurality of volume adjustment items not related to a low-frequency-of-adjustment sound including a ringing tone, and the volume adjustment operation unit is individually operated by a single volume adjustment operation unit. Volume adjustment operation means, switching of the first volume adjustment mode indicating the current volume adjustment target item of the first volume adjustment operation means, and current sound of the second volume adjustment operation means When the switching means for switching the second volume adjustment mode indicating the item to be adjusted and the first volume adjustment operation means are operated, the volume of the volume adjustment item corresponding to the first volume adjustment mode at that time And volume adjustment control means for performing volume adjustment control of the volume adjustment item corresponding to the second volume adjustment mode at that time when the second volume adjustment operation means is operated. It is a feature.
According to a second aspect of the present invention, in the first aspect, the switching means switches the first volume control mode in accordance with the operating state of the telephone.
In claim 3, the switching means according to claim 2, wherein the switching means uses the first volume adjustment mode as the reception volume of the receiver when the telephone is in a call with the receiver, and when the telephone is in a hands-free call or playing an answering message, The first volume control mode is set as the loudness volume of the loudspeaker.
According to a fourth aspect of the present invention, in the first or second aspect, the switching means switches the second volume control mode in accordance with the operating state of the telephone.
In claim 5, the switching means according to claim 4 is characterized in that when the telephone is ringing, or when the telephone is waiting and ringing, or when the telephone is ringing and talking, the second volume control operation means The volume control mode is set as the calling volume.
According to a sixth aspect of the present invention, in the first aspect, the first volume adjusting operation means is a volume up key and a volume down key arranged up and down (or right and left), and the second volume adjusting operation means is the first volume control key. A volume up key and a volume down key arranged on the right and left (or up and down) in the vicinity of the adjusting operation means are characterized.
According to a seventh aspect of the present invention, in the sixth aspect, the display means for displaying the volume and the volume adjusted by the first volume adjustment operation means are displayed on the display means in a graph that changes vertically (left and right), Volume display control means for displaying the volume adjusted by the volume adjustment operation means in a graph that changes left and right (up and down) on the display means is provided.
[0005]
9. The volume control apparatus for a telephone set according to claim 8, wherein the volume control apparatus for a telephone uses a single volume control operation means to switch a plurality of volume control items and individually adjust the volume. You can also switch between multiple volume adjustment items related to frequently adjusted audio, including the volume of the receiver, the volume of loudspeakers from the loudspeaker during hands-free calls, or when you are playing recorded messages. A first volume adjustment operation means for performing an adjustment operation; a second volume adjustment operation means for performing a volume adjustment operation of a ringing volume; and a first volume indicating a current volume adjustment target item of the first volume adjustment operation means. When the switching means for switching the volume adjustment mode of the adjustment operation means and the first volume adjustment operation means are operated, the volume adjustment mode of the first volume adjustment operation means at that time is operated. Adjust the volume control of the volume control item corresponding to de, the second volume adjusting operation means is operated, is characterized in that it comprises, a volume adjustment control means for the volume adjustment control ring volume.
In the ninth aspect, the switching means switches the volume adjustment mode of the first volume adjustment operation means in accordance with the operating state of the telephone.
In the tenth aspect of the present invention, in the ninth aspect, the switching means uses the volume adjustment mode of the first volume adjustment operation means as the reception volume of the receiver when the telephone is in a call with the receiver, and the telephone is in a hands-free call or an answering message. During reproduction, the volume adjustment mode of the first volume adjustment operation means is set to the loudness volume of the loudspeaker.
In the eleventh aspect, in the eighth aspect, the first volume adjusting operation means is a volume up key and a volume down key arranged above and below (or right and left), and the second volume adjusting operation means is the first volume. A volume up key and a volume down key arranged on the right and left (or up and down) in the vicinity of the adjusting operation means are characterized.
In a twelfth aspect, the display means for displaying the volume according to the eleventh aspect, and the volume adjusted by the first volume adjustment operation means are displayed on the display means in a graph that changes up and down (left and right). Volume display control means for displaying the volume adjusted by the volume adjustment operation means in a graph that changes left and right (up and down) on the display means is provided.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment of the present invention will be described with reference to FIG. FIG. 1 is a configuration diagram of a telephone with a volume control function according to the present invention.
1 is a line extending from the station side, 2 is a line connection unit for connecting the exchange on the station side to the telephone via the line 1, and 3 is a ringing tone signal from the station side via the line connection unit during standby Is received, 4 is a receiver, and includes a reception speaker 5 and a transmission microphone 6. An electronic volume unit 7 and an amplifier unit 8 for volume adjustment are provided in the front stage of the reception speaker 5, and a microphone amplifier unit 9 is provided on the output side of the transmission microphone 6. Reference numeral 10 denotes a hook switch that is turned on / off by raising and lowering the receiver 4, and 11 and 12 are loudspeakers and microphones used for hands-free calling. An electronic volume unit 13 and an amplifier unit 14 for adjusting the volume are disposed in front of the loudspeaker 11. A microphone amplifier unit 15 is provided on the output side of the microphone 12. Reference numeral 16 denotes a recording / playback unit. When there is an incoming call in the absence recording mode, the response message recorded on the recording medium 17 is reproduced and output, or the other party's message is recorded on the recording medium 18 to cancel the absence recording mode. Sometimes the other party's absence recording message recorded on the recording medium 18 is reproduced and output. Reference numeral 19 is a beep sound generating section for generating a beep sound signal, and 20 is a beep sound speaker for outputting a confirmation beep sound at the time of key operation, and an electronic volume section 21 and an amplifier section 22 for volume adjustment are provided in the previous stage. ing.
[0007]
A call path switch unit 23 outputs a ringing tone signal from the line connection unit 2 to the loudspeaker 11 side when there is an incoming call in accordance with the control of the control unit which will be described later. At that time, a signal from the line connection unit 2 is output to the receiving speaker 5 side, and a signal from the transmission microphone 6 is output to the line connection unit 2. Further, during a hands-free call, a signal from the line connection unit 2 is output to the loudspeaker 11 side, and a signal from the microphone 12 is output to the line connection unit 2. Further, when there is an incoming call in the absence recording mode, a response message reproduced by the recording / reproducing unit 16 is output to the line connecting unit 2 and sent to the other party, and a signal from the line connecting unit 2 is recorded. To the other party's message.
[0008]
Reference numeral 24 denotes a key operation unit. 1 ~ 25 Ten , *, # Symbol keys 25 11 , 25 12 In addition to the answering key 26 and the hands-free call hook key 27, a first volume adjusting operation means 30 comprising a volume up key 28 and a volume down key 29, and a second volume comprising a volume up key 31 and a volume down key 32. Volume control operation means 33 is provided. The first volume adjustment operation means 30 is used as one volume adjustment operation means at the time of the loudness output from the loudspeaker during the hands-free call and the loudspeaker from the loudspeaker during the hands-free call. This is for adjusting the volume by switching the adjustment items related to the voice having a relatively high adjustment frequency in the telephone, such as the sound volume of the voice. The second volume adjustment operation means 33 is also used as one volume adjustment operation means, and is an adjustment item with a relatively low adjustment frequency in a telephone that is not related to voice, such as a ringing volume for incoming calls, a beep volume for confirming key operations The volume is adjusted by switching the. Reference numeral 34 denotes a memory unit which stores the reception volume data VDR of the receiver, the loudness volume data VDL of the loudspeaker, the calling volume data VDA, and the beep volume data VDB in a readable and writable manner. VDR, VDL, VDA, and VDB are all assumed to take seven levels from 1 to 7 as the minimum. In the memory unit 34, the first volume adjustment mode data VRM1 indicating the current volume adjustment target item in the first volume adjustment operation means 30, and the current volume adjustment target item in the second volume adjustment operation means 33 are stored. Second volume adjustment mode data VRM2 indicating that the loudspeaker 11 is in the loudspeaker output for the hands-free call or in the loudspeaker output of the voice recording message, whether or not the loudspeaker 11 is in the loudspeaker output. (Sound output) is also stored.
[0009]
Reference numeral 35 denotes a display unit that displays the current volume adjustment target item name and volume when the volume adjustment operation is performed by the first volume adjustment operation unit 30 or the second volume adjustment operation unit 33 (FIG. 12, FIG. 12). (See FIG. 13). Reference numeral 36 denotes a tone generator that generates a tone signal corresponding to a numerical value when dialing and outputs the tone signal to the line 1 side via the line connection unit 2, and 37 is a control unit having a microcomputer configuration. Make outgoing calls, incoming calls, voice mails, and perform volume adjustment control for various volume adjustment items such as receiver volume, loudspeaker loudspeaker volume, ringer volume, and beep volume.
[0010]
2 to 8 are flowcharts showing main control processing of the control unit 37, FIGS. 9 to 11 are flowcharts showing interrupt processing executed periodically, and FIGS. 12 and 13 are display units 35 at the time of volume control operation. The display example will be described below, and the operation of the above-described embodiment will be described below with reference to these drawings.
Note that VDR, VDL, VDA, and VDB are all set to a standard volume 4 and the handset 4 is not lifted (hook switch 10 is in an on-hook state).
[0011]
(1) Standby
When the power is turned on, the control unit 37 sets F = 0 to register that the loudspeaker 11 is not currently outputting loudspeaking voice for hands-free calling and not outputting loudspeaking voice for message output (FIG. 2). Step S10), the volume control for the electronic volume unit 7 is performed based on the reception volume data VDR of the receiver, the standard reception volume of the receiver is set, and the volume control for the electronic volume unit 21 is performed based on the beep volume data VDB. Beep volume, the second volume adjustment mode data VDM2 indicating the current volume adjustment target item of the second volume adjustment operation means 33 is used as the calling volume, and the current volume adjustment of the first volume adjustment operation means 30 is set. The first volume adjustment mode data VDM1 indicating the target item is set as the reception volume of the receiver, and based on the ring volume data VDA. Set to a standard call volume by the volume control for the electronic volume unit 13 (step S11 to S15). Then, a standby state is entered, a ringing tone signal is input from the station side, and an incoming call is detected by the incoming call detection unit 3, or the handset 4 is lifted and the hook switch 10 is turned off, or the hands-free call hook key 27 is set. It is checked whether the key operation has been performed or the answering key 26 has been operated (steps S16 to S19).
[0012]
(2) Adjusting the listening volume of the receiver in standby
Here, when it is desired to increase (decrease) the reception volume of the receiver during standby, the volume up key 28 (volume down key 29) of the first volume adjustment operation means 30 is pressed once alone. Then, the control unit 37 determines YES in step S200 (step S209) of FIG. 9, controls the beep sound generation unit 19, generates a beep sound signal only for a short time, and generates a beep sound from the beep sound speaker 20 at a standard beep volume. A beep sound for key operation confirmation is output (step S201 (S210)). Since the first volume adjustment mode is currently the reception volume of the handset, VDR is increased (decreased) by one step (steps S202 and S203 (S211 and S212)). Then, the volume control for the electronic volume unit 7 is performed based on the VDR, and the received volume of the receiver is increased (decreased) by one level (step S204). Based on VDR, the display unit 35 displays the current handset receiving volume and the current volume adjustment target item name of the first volume adjustment operation means 30 in the vertical bar as with the key arrangement of the first volume adjustment operation means 30. A graph is displayed for a certain period of time (step S205, see FIG. 12 (1)). Since the bar graph display of the reception volume of the receiver is made in the same direction as the key arrangement of the first volume adjustment operation means 30, it can be easily determined whether a desired volume adjustment item is being operated correctly.
[0013]
(3) Call
When a ringing tone signal is sent from the station side to the own device during standby, it is input to the incoming call detection unit 3 via the line connection unit 2, and the incoming call detection unit 3 outputs an incoming call detection signal. Then, the control unit 37 determines that there is an incoming call (YES in step S16 in FIG. 2), and controls the speech path switch unit 23 so that the input from the line connection unit 2 is output to the loudspeaker 11 side. (Step S20 in FIG. 3). Thereby, a ringing tone is output from the loudspeaker 11 at a standard volume.
[0014]
(4-1) Phone call
Thereafter, the control unit 37 checks whether the hook switch 10 is in an off-hook state, whether the hands-free call hook key 27 is pressed, or whether the ringing tone is not detected by the incoming call detection unit 3 (steps S21 to S23). When the handset 4 is lifted to make a call at 4, the hook switch 10 is in an off-hook state. Therefore, the control unit 37 determines YES in step S21, and controls the line connection unit 2 to be off-hook and shifts to a call state with the other party. (Step S24), the communication path switch unit 23 is controlled, and the input from the line connection unit 2 is output to the reception speaker 5 side of the receiver 4, and the input from the transmission microphone 6 side is input to the line connection unit. 2 to enable a telephone call on the receiver 4 (step S25). The voice from the other party can be heard at the user desired volume.
[0015]
(4-2) Adjusting the receiving volume during a call with the handset
If the reception volume at the receiver 4 is still small (large), the volume up key 28 (volume down key 29) of the first volume adjustment operating means 30 is pressed once during a call at the receiver 4. Then, the control unit 37 outputs a beep sound for a short time, and the VDR is increased (decreased) by one step because the volume adjustment mode of the first volume adjustment operation means 30 is the reception volume of the receiver (step S200 in FIG. 9). -S203 (S209-S212)). Then, the volume control for the electronic volume unit 7 is performed based on the VDR, and the received volume of the receiver is increased (decreased) by one level (step S204). Based on VDR, the display unit 35 displays the current handset receiving volume and the current volume adjustment target item name of the first volume adjustment operation means 30 in the vertical bar as with the key arrangement of the first volume adjustment operation means 30. The graph is displayed for a certain time (step S205).
[0016]
(4-3) End story
When the telephone conversation with the other party ends and the user puts the handset 4, the hook switch 10 is opened and the on-hook state is established. Then, the control unit 37 determines YES in step S26 in FIG. 3, performs on-hook control on the line connection unit 2 to end the call (step S27), returns to step S16 in FIG. 2, and enters a standby state.
[0017]
(5-1) Call in hands-free call mode
If there is an incoming call and you want to make a hands-free call because the hand is blocked, etc., the hands-free call hook key 27 is pressed once with the handset 4 still placed. Then, the control unit 37 determines YES in step S22, outputs a beep sound for a short time, enters a hands-free call mode, controls the line connection unit 2 off-hook, and shifts to a call state with the other party, F = 1, the first volume control mode data VDM1 is set as a loud volume, the volume control is performed on the electronic volume unit 13 based on the loud volume data VDL, the standard volume is set, and the speech path switch unit 23 is controlled. Thus, the input from the line connection unit 2 is output to the loudspeaker 11 side, the input from the microphone 12 side is output to the line connection unit 2, and a hands-free call using the microphone 12 and the loudspeaker 11 is performed. (Steps S30 to S36 in FIG. 4). The sound from the other party can be heard from the loudspeaker 11 at the loudspeaker volume desired by the user.
[0018]
(5-2) Adjusting the loudness volume during a hands-free call
If the loudness volume from the loudspeaker 11 is small (large), the volume up key 28 (volume down key 29) of the first volume adjustment operation means 30 is pressed once during a hands-free call. Then, the control unit 37 outputs a beep sound for a short time, and the volume adjustment mode of the first volume adjustment operation means 30 is currently a loud sound volume, so that VDL is increased (decreased) by one level (steps S200 to S202 in FIG. 9). , S206 (S209 to S211, S213)). Then, the volume control for the electronic volume unit 13 is performed based on the VDL, and the loudness volume is increased (decreased) by one level (step S207). This makes it easier to hear the other party's voice. Then, on the display unit 35, the reception volume of the current receiver and the volume adjustment target item name of the first volume adjustment operation means 30 based on VDL are displayed in the vertical bar graph as in the key arrangement of the first volume adjustment operation means 30. To display for a certain time (step S208; see (2) in FIG. 12). Since the bar graph display of the loud volume is also made in the same direction as the key arrangement of the first volume adjustment operation means 30, it can be easily determined whether the desired volume adjustment item is being operated correctly.
[0019]
(5-3) End story
When the call with the other party is completed and the hands-free call hook key 27 is pressed once, the control unit 37 determines YES in step S37 of FIG. 4, outputs a beep sound for a short time, and cancels the hands-free call mode. Then, on-hook control is performed on the line connection unit 2 to terminate the call, and after F = 0 (steps S38 to S41), the process returns to step S14 in FIG. 2, and the first volume control mode data VDM1 is received by the handset. The volume is set, the volume control for the electronic volume unit 13 is performed based on the call volume data VDA, the call volume desired by the user is set (step S15), and a standby state is entered.
[0020]
(6-1) Outgoing call with handset
When the user makes a call and wants to talk on the handset 4, when the handset 4 is first lifted, the hook switch 10 is in an off-hook state. Therefore, the control unit 37 determines YES in step S17 of FIG. The communication path switch unit 23 is controlled so that the input from the line control unit 2 is output to the reception speaker 5 side of the receiver 4, and the input from the transmission microphone 6 side is input to the line control unit 2. (Steps S50 and S51 in FIG. 5). When the other party's telephone number is 123-4567, the “1” key 25 1 , “2” key 25 2 , "3" key 25 Three , "4" key 25 Four , "5" key 25 Five , "6" key 25 6 , “7” key 25 7 Press once in the order. First, “1” key 25 1 Is pressed once, the control unit 37 outputs a beep sound only for a short time, controls the tone generation unit 36 to generate a tone signal corresponding to the dial numerical value “1”, and then via the line connection unit 2. The data is sent to the station side (steps S52 to S54). Similarly, when another key is pressed, a beep sound is output only for a short time, and a tone signal corresponding to the numerical value is generated and output to the station side.
When the other party answers the call, a call connection state is established, and the voice from the other party can be heard from the receiving speaker 5 at the reception volume desired by the user.
[0021]
(6-2) Adjusting the volume of incoming call during a call with the handset
If the reception volume at the receiver 4 is still small (large), the volume up key 28 (volume down key 29) of the first volume adjustment operating means 30 is pressed once during a call at the receiver 4. Then, the control unit 37 outputs a beep sound for a short time, and the VDR is increased (decreased) by one step because the volume adjustment mode of the first volume adjustment operation means 30 is the reception volume of the receiver (step S200 in FIG. 9). -S203 (S209-S212)). Then, the volume control for the electronic volume unit 7 is performed based on the VDR, and the received volume of the receiver is increased (decreased) by one level (step S204). Then, on the display unit 35, the current handset receiving volume based on VDR and the volume adjustment target item name of the first volume adjustment operation means 30 are displayed in a vertical bar graph as with the key arrangement of the first volume adjustment operation means 30. It is displayed for a certain time (step S205).
[0022]
(6-3) End story
When the telephone conversation with the other party ends and the user puts the handset 4, the hook switch 10 is opened and the on-hook state is established. Then, the control unit 37 determines YES in step S55 in FIG. 5, performs on-hook control on the line connection unit 2 to end the call (step S56), returns to step S16 in FIG. 2, and enters a standby state.
[0023]
(7-1) Outgoing call in hands-free call mode
On the other hand, when a user calls and wants to make a hands-free call using the microphone 12 and the loudspeaker 11, when the hands-free call hook key 27 is pressed once, the control unit 37 determines YES in step S18 of FIG. The beep sound is output only for a short time, the hands-free call mode is set, the line connection unit 2 is controlled off-hook, the call state with the other party is shifted to F = 1, and the first volume control mode data VDM1 is amplified. The volume is set to a desired volume level by controlling the volume of the electronic volume unit 13 based on the volume level data VDL, and the speech path switch unit 23 is controlled to input from the line connection unit 2 The input from the microphone 12 side is output to the line connection unit 2 (steps S60 to S66 in FIG. 6). When the other party's telephone number is 123-4567, the “1” key 25 1 , “2” key 25 2 , "3" key 25 Three , "4" key 25 Four , "5" key 25 Five , "6" key 25 6 , “7” key 25 7 Press once in the order. Each time the numeric key is pressed, the control unit 37 outputs a beep sound for a short time, controls the tone generating unit 36 to generate a tone signal corresponding to the dialed numerical value, and the station side via the line connection unit 2 (Steps S67 to S69).
When the other party answers the call, the call is connected, and the voice from the other party can be heard from the loudspeaker 11 at the loudness level desired by the user.
[0024]
(7-2) Adjusting loud sound volume during a hands-free call
If the loudness volume from the loudspeaker 11 during the hands-free call is still small (large), the volume up key 28 (volume down key 29) of the first volume adjustment operation means 30 is set to 1 during the hands-free call. Press once. Then, the control unit 37 outputs a beep sound for a short time, and the volume adjustment mode of the first volume adjustment operation means 30 is currently a loud sound volume, so that VDL is increased (decreased) by one level (steps S200 to S202 in FIG. 9). , S206 (S209 to S211, S213)). Then, the volume control for the electronic volume unit 13 is performed based on the VDL, and the loudness volume is increased (decreased) by one level (step S207). This makes it easier to hear the other party's voice. Then, on the display unit 35, the current handset receiving volume based on VDL and the volume adjustment target item name of the first volume adjustment operation means 30 are displayed in a vertical bar graph as with the key arrangement of the first volume adjustment operation means 30. It is displayed for a certain time (step S208).
[0025]
(7-3) End story
When the call with the other party is completed and the hands-free call hook key 27 is pressed once, the control unit 37 determines YES in step S70 of FIG. 6, outputs a beep sound for a short time, and cancels the hands-free call mode. Then, the on-hook control is performed on the line connection unit 2 to terminate the call, and after F = 0 (steps S71 to S74), the process returns to step S14 in FIG. 2, and the first volume control mode data VDM1 is received by the handset. The volume is set, the volume control for the electronic volume unit 13 is performed based on the call volume data VDA, the call volume desired by the user is set (step S15), and a standby state is entered.
[0026]
(8-1) Answering mode
If the user wants to set the telephone to the answering mode to leave, the user presses the answering key 26 once during standby. Then, the control unit 37 determines YES in step S19 of FIG. 2, generates a beep sound for a short time and enters the answering mode, and controls the speech path switch unit 23 to record the input from the line control unit 2. The output is made to the recording input terminal (IN) side of the reproduction unit 16, and the input from the reproduction output terminal (OUT) side of the recording / reproduction unit 16 is outputted to the line control unit 2. Then, K indicating the number of recordings is set to 0, and the incoming call detection unit 3 waits for the incoming call to be detected or the absence key 26 to be pressed (steps S80 to S85 in FIG. 7).
[0027]
(8-2) Incoming call in voice mail mode
If there is an incoming call from the outside during the voice recording mode, the control unit 37 determines YES in step S84, controls the line connection unit 2 off-hook, controls the recording / playback unit 16, and responds recorded on the recording medium 17. Play a message, for example, “I am out of the office. Please tell me your message” and send it to the other party. Then, the recording / reproducing unit 16 is controlled to record the other party's requirements on the recording medium 18 for a predetermined time from the beginning. Then, K indicating the number of recordings is set to 1, and the line connection unit 2 is on-hook controlled (steps S86 to S90).
[0028]
When there is a second incoming call from the outside, the control unit 37 determines YES in step S100 of FIG. 7, controls the line connection unit 2 off-hook, controls the recording / playback unit 16, and is recorded on the recording medium 17. The response message is reproduced, and then the requirements of the other party are recorded on the recording medium 18 for a certain period of time from the last recorded part. Then, K indicating the number of recordings is set to 2, and the line connection unit 2 is controlled on-hook (steps S84, S86 to S92).
[0029]
(8-3) Message playback
When the user who has returned from the destination wants to cancel the voice recording mode, he / she presses the voice recording key 26 once. Then, the control unit 37 determines YES in step S85, generates a beep sound for a short time, and cancels the absence recording mode. Then, F = 1 is set, the volume adjustment mode VDM1 is set as the loud sound volume, the sound volume control is performed on the electronic volume unit 13 based on the VDL, and the desired loud sound volume is obtained (steps S100 to S105). The communication path switch unit 23 is controlled so that the input from the playback output terminal OUT side of the recording / playback unit 16 is output to the loudspeaker 11 side. Then, it is checked whether or not the number of recordings during this absence recording is 1 or more. If NO, the recording / playback unit 16 is controlled and a guidance message recorded on the recording medium 17, for example, “no recording message” Is output and the loudspeaker 11 outputs the loudspeaker (NO in step S106, S107). If the number of recordings is 1 or more, the recording / reproducing unit 16 is controlled to reproduce each message from the other party recorded on the recording medium 18 in order. The user can listen to the message recorded by the other party through the loud speaker 11 at a desired loud volume. When the reproduction of the message is finished, F = 0 and the volume adjustment mode VDM1 is set to the reception volume of the receiver, and then the standby state is set (steps S108 and S109, steps S14 and S15 in FIG. 2).
[0030]
(8-4) Adjustment of message playback volume
If the other party's message is too loud (too loud) and you want to increase (decrease) the playback volume of the message, while the message is being loudly output (the first volume control mode is the loud volume) The volume up key 28 (volume down key 29) of the first volume adjustment operating means 30 is pressed once. Then, the control unit 37 outputs a beep sound for a short time, and the volume adjustment mode of the first volume adjustment operation means 30 is currently a loud sound volume, so that VDL is increased (decreased) by one level (steps S200 to S202 in FIG. 9). , S206 (S209 to S211, S213)). Since F = 1 at present, the volume control for the electronic volume unit 13 is performed based on the VDL, and the loudness volume is increased (decreased) by one level (step S207). This makes it easier to hear the other party's voice. Based on the VDL, the current loudness volume and the name of the volume adjustment target item of the first volume adjustment operation means 30 are fixed on the display unit 35 in a vertical bar graph as with the key arrangement of the first volume adjustment operation means 30. The time is displayed (step S208).
[0031]
(9) Adjusting the ring volume
If the ringtone at the incoming call is low (large) at the standard volume, and you want to make it louder (smaller), you can wait (waiting), ringing, talking, and answering mode at any time, The volume up key 31 (volume down key 32) of the second volume adjustment operation means 33 is pressed once alone. Then, the control unit 37 determines YES in step S220 in FIG. 10 (step S240 in FIG. 11), determines whether the volume down key 32 (volume up key 31) is simultaneously pressed (step S221 (S241)), and NO. Therefore, the beep sound generation unit 19 is controlled to generate a beep sound signal for a short time, and the beep sound is output from the beep sound speaker 20 (step S222 (S242)). Since the second volume adjustment mode, which is the current volume adjustment target item of the second volume adjustment operation means 33, is the call volume, the call volume data VDA is increased (decreased) by one level (steps S223, S224 (S243, S244). )).
[0032]
If F = 0 and the hands-free call 11 is not being used and the message reproduction output is not being performed using the loudspeaker 11, the volume control for the electronic volume unit 13 is performed based on the call volume data VDA, and the call volume is increased by one level ( (Step S225, S226 (S245, S246)). Then, the current calling volume and volume adjustment target item name are displayed on the display unit 35 based on the VDA for a certain period of time using a horizontal bar graph as with the key arrangement of the second volume adjustment operation means 33 (step S227 (S247)). (See (1) in FIG. 13). The bar graph display of the ringing volume is made in the same direction as the key arrangement of the second volume adjusting operation means 33, and in the direction orthogonal to the receiving volume and loudness volume of the receiver, so that the desired volume adjustment item is correct. You can easily determine if you are operating.
If F = 1 in step S225 (S245), the volume control for the electronic volume unit 13 is performed based on the call volume data VDA at the next place where F = 0, and the call volume is increased by one level ( (Step S41 in FIG. 4, step S74 in FIG. 6, step S109 in FIG. 8, steps S14 and S15 in FIG. 2).
[0033]
As a result of the operation for increasing (decreasing) the ringing volume, the volume of the subsequent ringing tone is increased (decreased) by one step, which makes it easy to listen. In addition, although the volume adjustment frequency of the ringing tone is relatively small, the first volume adjustment operation means 30 for the volume adjustment item for the volume adjustment frequency that is relatively high, such as the reception volume of the receiver and the loudness volume, is not the first volume. Since the volume adjustment of the ringing tone is performed using the second volume adjustment operation means 33 provided separately from the adjustment operation means 30, the correspondence between the volume adjustment items and the volume adjustment operation means is easily understood. . Therefore, there is less risk of adjusting the volume other than the ringing volume by mistakenly operating the first volume adjusting operation means 30 in order to adjust the ringing volume. Also, the ringing volume can be adjusted at any time.
[0034]
(10) Adjusting the beep volume
Further, when the beep volume as the key operation confirmation sound is desired to be changed from the standard volume, the second volume adjustment operation means 33 can be set at any timing such as waiting (standby), calling, calling, or answering mode. Simultaneously press the volume up key 31 and the volume down key 32. Then, the control unit 37 determines YES in step S220 in FIG. 10 (step S240 in FIG. 11), and determines whether the volume down key 32 (volume up key 31) is simultaneously pressed (step S221 (S241)). However, since it is YES, the beep sound generation unit 19 is controlled to generate a beep sound signal for a short time, and the beep sound is output from the beep sound speaker 20 (step S228 (S248)). Since the volume up key 31 and the volume down key 32 are simultaneously pressed at this time, it is determined that the second volume adjustment mode is changed, and the second volume adjustment mode is changed to a certain time T. 0 (For example, T 0 = 20 seconds), the beep volume is set. Specifically, the second volume adjustment mode is set to beep volume, and the timer is started (steps S229 and S230 (steps S249 and S250)). And while the timer is counting, the timer time t is T 0 It is checked whether or not the above has been reached (steps S254 and S255 in FIG. 11), and t is T 0 If it becomes above, the 2nd volume adjustment mode will be returned to a calling volume, and a timer will be stopped (step S256, S257).
[0035]
The second volume control mode is for a certain time T 0 When the volume up key 31 (volume down key 32) of the second volume adjusting operation means 33 is pressed once only while the beep volume is set, the control unit 37 controls the beep sound generating unit 19. Then, a beep sound is output for a short time (steps S220 to S222 in FIG. 10 (steps S240 to S242 in FIG. 11)). Since the volume up key 31 (volume down key 32) has been pressed alone this time, it is determined that the volume adjustment operation for the current volume adjustment target item of the second volume adjustment operation means 33 has been performed, and the second Since the volume control mode is beep volume, the beep volume data VDB is increased (decreased) by one level (steps S223 and S231 (S243 and S251)). Then, the volume control for the electronic volume unit 21 is performed based on the VDB, and the beep volume is increased (decreased) by one level (step S232 (S252)). Then, the current beep volume and the volume adjustment target item name are displayed on the display unit 35 based on the VDB for a certain period of time as a horizontal bar graph as with the key arrangement of the second volume adjustment operation means 33 (step S233 (S253)). ). As a result, the volume of the subsequent beep increases (decreases) by one step, making it easier to listen. Further, since the bar graph display of the beep volume is made in the same direction as the key arrangement of the second volume adjustment operation means 33 and in the direction orthogonal to the reception volume and loudness volume of the receiver, the desired volume adjustment item You can easily determine whether you are operating correctly.
[0036]
In addition, although the volume adjustment frequency of the beep sound is relatively small, the first volume control operation means 30 is not used for the volume adjustment item for the volume control frequency that is relatively high, such as the reception volume of the receiver and the loudness volume. Since the volume adjustment of the beep sound is performed using the second volume adjustment operation means 33 provided separately from the adjustment operation means 30, the correspondence relationship between the volume adjustment items and the volume adjustment operation means is easy to understand. . Therefore, it is less likely that the user wants to adjust the beep volume, but mistakenly operates the first volume adjustment operation means 30 to adjust items other than the ring volume.
[0037]
According to this embodiment, the reception volume of the receiver and the loudness of the loudspeaker during a hands-free call or the loudness of the loudspeaker during playback of an answering message is related to a sound with a relatively high volume adjustment frequency. The volume adjustment items to be performed are also used by the first volume adjustment operation means 30 to switch the volume adjustment mode and individually adjust the volume, such as the ringing volume and the beep volume. Since the volume control items that are not related are shared by the second volume control operation means 33 provided separately from the first volume control operation means 30, and the volume control mode is switched individually to adjust the volume. The correspondence between the adjustment items and the volume adjustment operation means is easy to understand. Specifically, items related to voice that is frequently adjusted according to the volume of the other party's voice during a call or the voice of an answering message can be used repeatedly by using the same operation means repeatedly. Become. On the other hand, for items that are rarely adjusted and that are not related to the voice, it is readily apparent that the operation means different from the operation means used for the voice is used. Therefore, there is less risk that the second volume adjusting operation means 33 will be operated by mistake and the items not related to the voice will be adjusted by mistake, even though it is desired to adjust the receiving volume of the receiver and the loudness volume of the loudspeaker. In this case, the user is less likely to accidentally operate the first volume adjustment operation means 30 and adjust items related to the voice even though he wants to adjust the call volume or the beep volume.
Further, even in a scene where the first volume adjustment operation means 30 can adjust only a specific adjustment item related to the voice, the second volume adjustment operation means 33 can be used to adjust items not related to the voice such as a ringing tone. Is possible.
[0038]
The volume control mode of the first volume control operating means 30 is automatically switched to the reception volume of the receiver during a call on the receiver, and the other party's voice is being output from the speaker 11 in the hands-free call mode. While a message is being output from the loudspeaker 11, the loudspeaker automatically switches to the loudspeaker volume. Therefore, when it is thought that the reception volume is low (high) during a call on the handset, the volume during the reception can be immediately increased (decreased) by immediately adjusting the volume with the first volume adjustment operation means 30. When the loudspeaker volume is being outputted from the loudspeaker 11 in the hands-free call mode or when the loudspeaker volume is thought to be low (large) while the message is being outputted from the loudspeaker 11, the first volume adjustment operation means 30 is immediately used. If the volume adjustment operation is performed, the loud sound volume can be immediately increased (decreased), which is convenient because the user does not have to switch the volume adjustment mode of the first volume adjustment operation means 30 by manual operation. During standby, the volume adjustment mode of the first volume adjustment operation means 30 automatically switches to the reception volume of the receiver, so that the reception volume of the receiver can be adjusted during standby.
[0039]
Further, since the volume adjustment mode of the second volume adjustment operation means 33 is normally switched to the ring volume, when the ring volume is thought to be low (large) during the output of the ring tone, the second volume adjustment mode 33 If the volume adjustment operation is performed by the volume adjustment operation means 33, the ringing volume during the call can be immediately increased (decreased), and if the second volume adjustment operation means 33 is operated by the second volume adjustment operation means 33 during or after the call. The ringing volume can be adjusted when desired, for example, the ringing volume at the next call can be increased (decreased).
Also, by simultaneously pressing the volume up key 31 and the volume down key 32 of the second volume adjustment operation means 33, the volume adjustment mode of the second volume adjustment operation means 33 can be temporarily set to beep volume. If the volume adjustment operation is performed with the second volume adjustment operation means 33 while the volume adjustment mode of the second volume adjustment operation means 33 is the beep volume, the beep volume when the next beep sound is generated is increased. (Decrease).
[0040]
The first volume adjustment operation means 30 is a volume up key 28 and a volume down key 29 arranged above and below, and the second volume adjustment operation means 33 is right and left in the vicinity of the first volume adjustment operation means 30. Since the volume up key 31 and the volume down key 32 are arranged at the center, the volume adjustment operation can be performed centrally at a specific location of the key operation unit 24, so there is no need to find the operation location of the volume adjustment. An operation mistake due to confusion between the first volume adjustment operation means 30 and the second volume adjustment operation means 33 is achieved by changing the key arrangement direction by 90 ° between the volume adjustment operation means 30 and the second volume adjustment operation means 33. Can be prevented.
In addition, the volume adjustment frequency such as the ringing volume and the beep volume is relatively low when the volume adjustment item related to the sound whose volume adjustment frequency is relatively high, such as the reception volume of the receiver and the loudness volume of the loudspeaker. The volume bar graph display direction changes according to the key arrangement direction of the volume up key and volume down key when the volume adjustment item that is not related to low sound is adjusted, so the volume adjustment item and volume adjustment operation Correspondence with the means becomes easy to understand visually, and the risk of erroneous operation is further reduced.
[0041]
In the above-described embodiment, the second volume adjusting operation unit can perform both the ringing volume adjusting operation and the beep volume adjusting operation. However, the second volume adjusting operation unit may perform only the ringing volume adjusting operation. . In this case, the ringing volume adjustment operation can be performed at any time regardless of the operating state of the telephone, such as during standby, during calling, or during a call.
[0042]
In the above-described embodiment, the second volume adjustment mode is normally used as the calling volume so that the ringing volume adjustment operation can be performed almost anytime, and the beep volume adjustment operation is temporarily performed in the second volume adjustment mode. Although it can only be performed while switching from the ring volume to the beep volume, the second volume adjustment mode is normally set to the beep volume so that the beep volume can be adjusted almost anytime. The second volume adjustment mode can be temporarily changed from the beep volume to the calling volume by pressing the volume up key 31 and the volume down key 32 of the second volume adjustment operation means 33 simultaneously. Anyway.
[0043]
Also, depending on the operating state of the telephone, the second volume adjustment mode is forcibly set as the ringing volume during ringing (calling and during a call), and the ringing volume is normally set except during ringing (during ringing and during a call). When the user performs a mode switching operation such as simultaneous pressing of the volume up key 31 and the volume down key 32, the beep volume may be temporarily set for a certain period of time. Specifically, in the interrupt processing of FIGS. 9 to 11, the portion of FIG. 11 is modified as shown in FIG. 14, and when NO is determined in step S255, the process proceeds to step S258 and is being called (calling or calling). (Checking whether or not a call is in progress can be performed by monitoring the output of the incoming call detection unit 3, for example. Checking whether or not a call is in progress is, for example, whether or not the hook switch 10 is in an off-hook state ( If the hook switch 10 is in an off-hook state, it is assumed that a call is in progress), and it can be easily checked by checking whether or not the hands-free call mode is set.) If YES, the second volume control mode is forcibly called. The volume may be set (steps S256 and S257).
[0044]
Unlike this, the second volume adjustment mode is forcibly set to the ringing volume when ringing (calling and talking) depending on the operating state of the phone, and when calling (calling and talking), Normally, the beep volume may be set, and when a user mode switching operation such as simultaneous pressing of the volume up key 31 and the volume down key 32 is performed, the ring volume may be temporarily set for a certain period of time.
[0045]
Also, depending on the operating state of the telephone, the second volume adjustment mode is forcibly set to the ring volume during standby (standby and ringing), and the ring volume is normally set except during standby (standby and ringing). When the user performs a mode switching operation such as simultaneous pressing of the volume up key 31 and the volume down key 32, the beep volume may be temporarily set for a certain period of time. In addition, the second volume control mode is forcibly set to the ringing volume during standby (standby and calling), and normally the beep volume is set except during standby (waiting and calling), and the volume up key 31 and volume are set. When the user performs a mode switching operation such as simultaneous pressing of the down key 32, the ringing volume may be temporarily set for a certain period of time.
[0046]
The first volume adjustment operation means 30 is a volume up key 28 and a volume down key 29 arranged above and below, and the volume when the volume adjustment operation is performed by the first volume adjustment operation means 30 is a bar that changes up and down. The second volume adjustment operation means 33 is set to a volume up key 31 and a volume down key 32 arranged on the left and right, and when the volume adjustment operation is performed by the second volume adjustment operation means 33. The volume is displayed as a bar graph that changes to the left and right. On the other hand, the first volume adjustment operation means 30 includes a volume up key 31 and a volume down key 32 arranged on the left and right, and a first volume. As shown in FIG. 13, the volume when the volume adjustment operation is performed by the adjustment operation means 30 is displayed as a bar graph that changes from side to side, and the second volume adjustment operation means 33 is a volume up key arranged above and below. And 28 and the volume down key 29, volume when sound volume adjustment operation in the second volume adjustment operation unit 33 as shown in FIG. 12, may be displayed in the bar graph changes up and down.
Further, the telephone can be similarly applied to a mobile phone, PHS, etc. in addition to a fixed phone.
[0047]
【The invention's effect】
According to the present invention, for example, the volume adjustment item related to the sound whose volume adjustment frequency is relatively high, such as the reception volume of the handset and the loudness volume of the loudspeaker, is shared by the first volume adjustment operation means. Volumes are individually adjusted by switching modes. For example, volume adjustment items that are not related to a sound whose volume adjustment frequency is relatively low, such as ringing volume and beep volume, are provided separately from the first volume adjustment operation means. Since the volume adjustment is performed by the volume adjustment operation unit 2, the correspondence between the volume adjustment items and the volume adjustment operation unit can be easily understood, and the possibility of erroneous operation is reduced.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a telephone with a volume control function according to an embodiment of the present invention.
FIG. 2 is a flowchart showing main control processing of a control unit.
FIG. 3 is a flowchart showing main control processing of a control unit.
FIG. 4 is a flowchart showing main control processing of a control unit.
FIG. 5 is a flowchart showing main control processing of a control unit.
FIG. 6 is a flowchart showing main control processing of a control unit.
FIG. 7 is a flowchart showing main control processing of a control unit.
FIG. 8 is a flowchart showing main control processing of a control unit.
FIG. 9 is a flowchart showing interrupt processing of a control unit.
FIG. 10 is a flowchart showing interrupt processing of a control unit.
FIG. 11 is a flowchart showing interrupt processing of a control unit.
FIG. 12 is an explanatory diagram of a volume display when the first volume adjustment operation means is operated.
FIG. 13 is an explanatory diagram of a volume display when a second volume adjustment operation unit is operated.
14 is a flowchart according to a modification of FIG.
[Explanation of symbols]
1 line 2 line connection
3 Incoming call detection unit 4 Handset
5 Receive speaker 6 Transmitting microphone
7, 13, 21 Electronic volume section 10 Hook switch
11 Loudspeaker 12 Microphone
16 Recording / playback unit 17, 18 Recording medium
19 Beep generator 20 Beep speaker
24 Key operation section 26 Answering key
27 Hook key for hands-free calling
28, 31 Volume up key 29, 32 Volume down key
30 First volume adjustment operation means 33 Second volume adjustment operation means
34 Memory unit 35 Display unit
36 Tone generator 37 Control unit

Claims (12)

１つの音量調節操作手段を兼用し、複数の音量調節項目を切り換えて個別に音量調節可能とした電話機の音量調節装置において、
１つの音量調節操作手段で兼用して、受話器の受話音量、ハンズフリー通話時または留守録音メッセージ再生時の拡声スピーカからの拡声音量を含む調節頻度の高い音声に関係する複数の音量調節項目を切り換えて、個別に音量調節操作を行う第１の音量調節操作手段と、
１つの音量調節操作手段で兼用して、呼び出し音を含む調節頻度の低い音声に関係しない複数の音量調節項目を切り換えて、個別に音量調節操作を行う第２の音量調節操作手段と、
第１の音量調節操作手段の現在の音量調節対象項目を示す第１の音量調節モードの切り換えと、第２の音量調節操作手段の現在の音量調節対象項目を示す第２の音量調節モードの切り換えを行う切り換え手段と、
第１の音量調節操作手段が操作されると、その時点での第１の音量調節モードに対応する音量調節項目の音量調節制御をし、第２の音量調節操作手段が操作されると、その時点での第２の音量調節モードに対応する音量調節項目の音量調節制御をする音量調節制御手段と、
を含むことを特徴とする電話機の音量調節装置。In a volume control device for a telephone that is also used as a single volume control operation means, and can be adjusted individually by switching a plurality of volume control items.
Multiple volume adjustment items related to high-frequency-adjusted sound, including the reception volume of the handset, the loudness volume from the loudspeaker during hands-free calls or the absence of recorded messages, can be switched with a single volume adjustment operation means First volume adjusting operation means for individually adjusting the volume;
A second volume adjusting operation means for switching a plurality of volume adjusting items not related to a low-adjustment sound including a ringing tone and performing a volume adjusting operation individually, which is shared by one volume adjusting operation means;
Switching of the first volume adjustment mode indicating the current volume adjustment target item of the first volume adjustment operation means, and switching of the second volume adjustment mode indicating the current volume adjustment target item of the second volume adjustment operation means. Switching means for performing
When the first volume adjustment operation means is operated, the volume adjustment control of the volume adjustment item corresponding to the first volume adjustment mode at that time is performed, and when the second volume adjustment operation means is operated, Volume adjustment control means for performing volume adjustment control of a volume adjustment item corresponding to the second volume adjustment mode at the time,
A volume control device for a telephone, comprising: 切り換え手段は、電話機の動作状態に応じて第１の音量調節モードの切り換えを行うようにしたこと、
を特徴とする請求項１記載の電話機の音量調節装置。The switching means switches the first volume adjustment mode according to the operating state of the telephone,
The volume control device for a telephone set according to claim 1. 切り換え手段は、電話機が受話器による通話中のとき、第１の音量調節モードを受話器の受話音量とし、電話機がハンズフリー通話中または留守録音メッセージ再生中のとき、第１の音量調節モードを拡声スピーカの拡声音量とするようにしたこと、
を特徴とする請求項２記載の電話機の音量調節装置。The switching means uses the first volume adjustment mode as the reception volume of the receiver when the telephone is in a call with the handset, and sets the first volume adjustment mode as a loudspeaker when the telephone is during a hands-free call or playing an answering message. That the loud sound of
The volume control device for a telephone set according to claim 2. 切り換え手段は、電話機の動作状態に応じて第２の音量調節モードの切り換えを行うようにしたこと、
を特徴とする請求項１または２記載の電話機の音量調節装置。The switching means switches the second volume adjustment mode according to the operating state of the telephone;
The volume control device for a telephone set according to claim 1 or 2. 切り換え手段は、電話機が呼び出し中のとき、または電話機が待機中及び呼び出し中のとき、または電話機が呼び出し中及び通話中のとき、第２の音量調節操作手段の音量調節モードを呼び出し音量とするようにしたこと、
を特徴とする請求項４記載の電話機の音量調節装置。The switching means sets the volume adjustment mode of the second volume adjustment operation means as the calling volume when the telephone is ringing, when the telephone is waiting and calling, or when the telephone is calling and talking. What
The volume control apparatus for a telephone set according to claim 4. 第１の音量調節操作手段は上と下（または右と左）に配置された音量アップキーと音量ダウンキーであり、
第２の音量調節操作手段は第１の音量調節操作手段の近傍で右と左（または上と下）に配置された音量アップキーと音量ダウンキーとしたこと、
を特徴とする請求項１記載の電話機の音量調節装置。The first volume control operation means is a volume up key and a volume down key arranged at the top and bottom (or right and left),
The second volume adjustment operation means is a volume up key and a volume down key arranged on the right and left (or up and down) in the vicinity of the first volume adjustment operation means,
The volume control device for a telephone set according to claim 1. 音量の表示を行う表示手段と、
第１の音量調節操作手段によって音量調節された音量を表示手段に上下（左右）に変化するグラフで表示させ、第２の音量調節操作手段によって音量調節された音量を表示手段に左右（上下）に変化するグラフで表示させる音量表示制御手段と、
を備えたことを特徴とする請求項６記載の電話機の音量調節装置。Display means for displaying the volume;
The volume adjusted by the first volume adjusting operation means is displayed on the display means as a graph that changes up and down (left and right), and the volume adjusted by the second volume adjusting operation means is displayed on the display means left and right (up and down). Volume display control means for displaying in a graph that changes,
The apparatus for adjusting a volume of a telephone according to claim 6, further comprising: １つの音量調節操作手段を兼用して、複数の音量調節項目を切り換えて個別に音量調節可能とした電話機の音量調節装置において、
１つの音量調節操作手段で兼用して、受話器の受話音量、ハンズフリー通話時または留守録音メッセージ再生時の拡声スピーカからの拡声音量を含む調節頻度の高い音声に関係する複数の音量調節項目を切り換えて、個別に音量調節操作を行う第１の音量調節操作手段と、
呼び出し音量の音量調節操作を行う第２の音量調節操作手段と、
第１の音量調節操作手段の現在の音量調節対象項目を示す第１の音量調節操作手段の音量調節モードの切り換えを行う切り換え手段と、
第１の音量調節操作手段が操作されると、その時点での第１の音量調節操作手段の音量調節モードに対応する音量調節項目の音量調節制御をし、第２の音量調節操作手段が操作されると、呼び出し音量の音量調節制御をする音量調節制御手段と、
を含むことを特徴とする電話機の音量調節装置。In a volume control device for a telephone that is also capable of individually adjusting the volume by switching a plurality of volume control items by using one volume control operation means.
Multiple volume adjustment items related to high-frequency-adjusted sound, including the reception volume of the handset, the loudness volume from the loudspeaker during hands-free calls or the absence of recorded messages, can be switched with a single volume adjustment operation means First volume adjusting operation means for individually adjusting the volume;
A second volume adjustment operation means for performing a volume adjustment operation of the ringing volume;
Switching means for switching the volume adjustment mode of the first volume adjustment operation means indicating the current volume adjustment target item of the first volume adjustment operation means;
When the first volume adjustment operation means is operated, the volume adjustment control of the volume adjustment item corresponding to the volume adjustment mode of the first volume adjustment operation means at that time is performed, and the second volume adjustment operation means is operated. A volume adjustment control means for controlling the volume adjustment of the ringing volume;
A volume control device for a telephone, comprising: 切り換え手段は、電話機の動作状態に応じて第１の音量調節操作手段の音量調節モードの切り換えを行うようにしたこと、
を特徴とする請求項８記載の電話機の音量調節装置。The switching means switches the volume adjustment mode of the first volume adjustment operation means in accordance with the operating state of the telephone;
The volume control device for a telephone set according to claim 8. 切り換え手段は、電話機が受話器による通話中のとき、第１の音量調節操作手段の音量調節モードを受話器の受話音量とし、電話機がハンズフリー通話中または留守録音メッセージ再生中のとき、第１の音量調節操作手段の音量調節モードを拡声スピーカの拡声音量とするようにしたこと、
を特徴とする請求項９記載の電話機の音量調節装置。The switching means uses the volume control mode of the first volume control operation means as the reception volume of the receiver when the telephone is in a call with the receiver, and the first volume when the telephone is during a hands-free call or while playing a recorded message. The volume adjustment mode of the adjustment operation means is set to the loudness volume of the loudspeaker,
The volume control device for a telephone set according to claim 9. 第１の音量調節操作手段は上と下（または右と左）に配置された音量アップキーと音量ダウンキーであり、
第２の音量調節操作手段は第１の音量調節操作手段の近傍で右と左（または上と下）に配置された音量アップキーと音量ダウンキーとしたこと、
を特徴とする請求項８記載の電話機の音量調節装置。The first volume control operation means is a volume up key and a volume down key arranged at the top and bottom (or right and left),
The second volume adjustment operation means is a volume up key and a volume down key arranged on the right and left (or up and down) in the vicinity of the first volume adjustment operation means,
The volume control device for a telephone set according to claim 8. 音量の表示を行う表示手段と、
第１の音量調節操作手段によって音量調節された音量を表示手段に上下（左右）に変化するグラフで表示させ、第２の音量調節操作手段によって音量調節された音量を表示手段に左右（上下）に変化するグラフで表示させる音量表示制御手段と、
を備えたことを特徴とする請求項１１記載の電話機の音量調節装置。Display means for displaying the volume;
The volume adjusted by the first volume adjusting operation means is displayed on the display means as a graph that changes up and down (left and right), and the volume adjusted by the second volume adjusting operation means is displayed on the display means left and right (up and down). Volume display control means for displaying in a graph that changes,
12. The telephone volume control apparatus according to claim 11, further comprising:
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