JPH07131268A - Telephone set - Google Patents

Telephone set

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Publication number
JPH07131268A
JPH07131268A JP27191493A JP27191493A JPH07131268A JP H07131268 A JPH07131268 A JP H07131268A JP 27191493 A JP27191493 A JP 27191493A JP 27191493 A JP27191493 A JP 27191493A JP H07131268 A JPH07131268 A JP H07131268A
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Prior art keywords
speaker
portion
receiving
means
ear
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Pending
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JP27191493A
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Japanese (ja)
Inventor
Kazuo Hirose
Hiroshi Matsumoto
和生 廣瀬
浩 松本
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Casio Comput Co Ltd
カシオ計算機株式会社
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Abstract

PURPOSE: To provide the telephone set which can prevent the reception state of a speaker for reception from deteriorating even when an ear part at a reception part is incompletely sealed.
CONSTITUTION: The telephone set is provided with a pressure sensor part 8 which detects the sealing state of the reception part of the handset of the telephone set with the ear part and when the reception part is sealed with the ear part, an input reception signal is supplied to the speaker 6a for reception as it is and reproduced, but when the reception part is not sealed with the ear part, the input reception signal is supplied to a frequency characteristic generation part 53 and a reception signal having such frequency characteristics that sound pressure level is large in a low frequency band and becomes decrease toward a high frequency band is generated and supplied to the speaker 6a for reception.
COPYRIGHT: (C)1995,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、受話用スピーカの諸特性を改善した電話機に関するものである。 The present invention relates to relates to telephone with improved properties of the received speaker.

【0002】 [0002]

【従来の技術】最近、電話機としてデジタルコードレスのものが実用化されているが、このような電話機では、 BACKGROUND ART Recently, digital cordless what has been put into practical use as a telephone, in such a telephone set,
通話をスムーズにするため、相手に対し送り出す通話音声を送話用マイクを介して入力し、相手から送られてくる通話音声を受話用スピーカを介して出力するようにしている。 To call smoothly enter through the mouthpiece microphone the speech sound for sending to the other party, and the call voice sent from the other party to be output through the earpiece speaker.

【0003】ところで、このような電話機における受話用スピーカの周波数特性は、送受話器の耳をあてがう受話部分を耳部が完全密閉した状態で、図3に示すように、音圧と周波数の関係が、ほぼフラットになるように設計されている。 Meanwhile, the frequency characteristics of the receiving speaker in such phones, with the ear the earpiece portion Ategau ears handset is fully closed, as shown in FIG. 3, the relationship between sound pressure and frequency It is designed to be substantially flat.

【0004】ところが、実際は、耳部を完全密閉する状態を作り出すのは難しく、耳部の密閉状態が不完全になると、この時の周波数特性は、図4に示すように、特に、周波数の低い帯域で、音圧レベルが著しく低下してしまい、このため低音域が極端に聞きずらいものになることがあった。 [0004] However, in fact, produce a state of complete sealing ears is difficult, the sealed state of the ear portion may be incomplete, the frequency characteristics at this time, as shown in FIG. 4, in particular, low frequency in the band, will be reduced sound pressure level is significantly, Therefore low frequency range sometimes becomes what extremely listen hesitation.

【0005】一方、このような受話用スピーカを有する電話機では、通話中の相手の音量を調節できるように、 On the other hand, as a telephone having such a receiving speaker can adjust the volume of the other party during a call,
受話用スピーカに対する音量調整機能を有している。 And a volume control for the receiver speaker. ところが、このような音量調整は手動操作により行うため、最適な音量に調整するまでに手間がかかり面倒であり、時として、耳を近付けた状態で、大きな音量に誤調整すると、耳を痛めるなどのおそれもあった。 However, in order to perform by such volume control is manually operated, is cumbersome time consuming until the adjustment to the optimum volume, sometimes in a state of close ears, the erroneous adjusted to a large volume, such as damage the ear All it also was of.

【0006】 [0006]

【発明が解決しようとする課題】このようにして、従来の受話用スピーカを有する電話機では、受話部分での耳部の密閉状態が不完全になると、この時の周波数特性の劣化により、周波数の低い帯域で音圧が著しく低下し、 In this way THE INVENTION Problems to be Solved] In the telephone having a conventional receiver speaker, the sealed state of the ear portion in the receiving portion becomes incomplete, due to deterioration of the frequency characteristics at this time, the frequency the sound pressure in a low band is significantly reduced,
低音域が極端に聞きずらくなるという問題点があり、また、受話用スピーカに対する音量調整機能を有するものでは、最適な音量に調整するまでに手間がかかり面倒であり、また、耳を近付けた状態で誤って大きな音量に調整すると、耳を痛めるというおそれもあった。 There is a problem that the bass is pleasure not excessively listen, also, the one having a volume control for the receiver speaker, cumbersome time consuming until the adjustment to the optimum volume, also close the ears If by mistake in the state to adjust to the large volume, there was also fear that damage the ear.

【0007】そこで、本発明は、受話部分での耳部の密閉が不完全な状態でも受話用スピーカでの受話状態の劣化を防止できる電話機を提供することを目的とする。 [0007] The present invention has an object to provide a telephone sealing ears at the reception portion can be prevented from deterioration of the receiving state in the receiving speaker even in an incomplete state. また、本発明は、所望する受話用スピーカの音量を簡単に得られるようにした電話機を提供することを目的とする。 The present invention also aims to provide a telephone set to obtain easily the volume of the earpiece speaker desired.

【0008】 [0008]

【課題を解決するための手段】本発明によれば、電話機本体の受話部分に設けられ且つ入力受話信号を再生する受話用スピーカと、前記電話機本体の受話部分に対する耳部の密閉状態を検出する密閉状態検出手段と、前記入力受話信号を複数の周波数帯域に分けるとともに、これら複数の周波数帯域ついて各別に増幅を行い所定周波数特性の受話信号を生成する周波数特性生成手段と、密閉状態検出手段で前記受話部分に対する耳部の密閉状態が検出されると前記入力受話信号を前記受話用スピーカに与え、前記密閉状態検出手段で前記受話部分に対する耳部の密閉状態が検出されないと周波数特性生成手段で生成された所定周波数特性の受話信号を前記受話用スピーカに与える制御手段とにより構成されている。 According to SUMMARY OF THE INVENTION The present invention, a receiving speaker for reproducing and input received signal is provided to receiver portion of the telephone main body, for detecting the closed state of the ear portion for receiving the portion of the phone body a closed state detecting means, with dividing the input reception signal into a plurality of frequency bands, the frequency characteristic generating means for generating a received signal of a predetermined frequency characteristic of amplification were performed separately to each with the plurality of frequency bands, in a closed state detecting means in the given the input received signal and a closed state of the ear portion is detected in the receiver speaker for reception portion, the sealed state sealed ear portion to the receiving portion is not detected by the detection means when the frequency characteristic generating means and is configured to receive signal of the generated predetermined frequency characteristic by a control means for providing the receiving speaker.

【0009】また、本発明によれば、周波数特性生成手段は、入力受話信号を複数の周波数帯域に分けるフィルタ手段、これら複数の周波数帯域ついて各別に増幅を行う帯域別増幅手段、これら帯域別増幅手段の出力を加算する加算手段よりなっている。 Further, according to the present invention, the frequency characteristic generating means, filter means dividing the input received signal into a plurality of frequency bands, the band-by-band amplifying means for amplifying with the plurality of frequency bands to each other, these band-by-band amplifier It is made from adding means for adding the output of means.

【0010】また、本発明によれば、電話機本体の受話部分に設けられ且つ入力受話信号を再生する受話用スピーカと、前記電話機本体の受話部分に対する耳部の押付け強さに応じた出力を発生する押付け強さ検出手段と、 Further, according to the present invention, generating a receiving speaker for reproducing and input received signal is provided to receiver portion of the telephone main body, an output corresponding to the pressing strength of the ear portion for receiving the portion of the phone body and strength detection means pressing for,
この押付け強さ検出手段の出力に応じて前記受話用スピーカの音量を切換えるスピーカ駆動手段とにより構成されている。 Is constituted by a speaker driving means for switching the volume of the receiving speaker in accordance with the output of the pressing strength detection means.

【0011】また、本発明によれば、電話機本体の受話部分に設けられ且つ入力受話信号を再生する受話用スピーカと、前記電話機本体の受話部分と耳部との距離に応じた出力を発生する距離検出手段と、前記受話部分と耳部との距離が所定距離を越えたとき前記距離検出手段からの出力により前記受話用スピーカを拡声スピーカとして駆動するスピーカ駆動手段とにより構成されている。 Further, according to the present invention, it occurs and the reception speaker for reproducing and input received signal is provided to receiver portion of the telephone main body, an output corresponding to the distance between the receiving portion and the ear portion of the phone body a distance detecting means, a distance between the receiving portion and the ear portion is constituted by a speaker driving means for driving the receiving speaker as loudspeaker by an output from said distance detecting means when it exceeds a predetermined distance.

【0012】 [0012]

【作用】この結果、本発明によれば、電話機本体の受話部分に対する耳部の密閉状態を検出する密閉状態検出手段を有し、この手段で受話部分に対する耳部の密閉状態が検出されると入力受話信号をそのまま受話用スピーカに与え、受話部分に対する耳部の密閉状態が検出されないと、入力受話信号を複数の周波数帯域に分けるとともに、これら複数の周波数帯域ついて各別に増幅を行うことにより生成される所定周波数特性の受話信号を受話用スピーカに与えるようにしているので、受話部分での耳部の密閉状態が不完全な状態でも受話用スピーカの周波数特性を最適なものに改善することができる。 [Action] As a result, according to the present invention has a sealed state detecting means for detecting a closed state of the ear portion for receiving part of the telephone body, the sealed state of the ear portion for receiving part of this section is detected provide input reception signal as it is receiving speaker, the sealed state of the ear portion for receiving part is not detected, with dividing the input received signal into a plurality of frequency bands, generated by performing the amplification in each other with the plurality of frequency bands since the received signal of a predetermined frequency characteristic to provide the receiving speaker, to improve the frequency characteristics of the receiving speaker to the optimum also in a closed state is defective ears in receiving portion it can.

【0013】また、本発明によれば、電話機本体の受話部分に対する耳部の押付け強さに応じた出力を発生する押付け強さ検出手段を有し、この押付け強さ検出手段の出力に応じて受話用スピーカの音量を切換えるようにしているので、受話用スピーカに対する音量調整を自動的に行うことができる。 Further, according to the present invention, it has a strength detection means pressing for generating an output corresponding to the pressing strength of the ear portion for receiving part of the telephone body, according to the output of the pressing strength detecting means since the switched volume of the receiving speaker can be automatically performed volume adjustment for receiver speaker.

【0014】また、本発明によれば、電話機本体の受話部分と耳部との距離に応じた出力を発生する距離検出手段を有し、受話部分と耳部との距離が所定距離を越えたときに距離検出手段より発生する出力により受話用スピーカを拡声スピーカとして駆動するようにしているので、受話用スピーカの拡声スピーカへの切換えを自動的に行うことができる。 Further, according to the present invention, has a distance detecting means for generating an output corresponding to the distance between the receiving portion and the ear portion of the phone body, the distance between the receiving portion and the ear portion exceeds a predetermined distance since so as to drive the receiving speaker as loudspeaker by the distance detection means from generating output when, it is possible to perform switching to loudspeaker of the receiving speaker automatically.

【0015】 [0015]

【実施例】以下、本発明の実施例を図面に従い説明する。 EXAMPLES Hereinafter, an embodiment of the present invention in accordance with the accompanying drawings. (第1実施例)図1は、本発明の第1実施例の全体構成を示している。 (First Embodiment) FIG. 1 shows an overall configuration of a first embodiment of the present invention. なお、本実施例は、本発明をデジタル無線電話に適用したものである。 This embodiment is an application of the present invention to a digital radio telephone. 図において、1はアンテナで、無線信号を送受信している。 In the figure, reference numeral 1 denotes an antenna, and transmit and receive radio signals.

【0016】無線部2は、アンテナ1より受信した無線信号を所定中間周波数に周波数変換するとともに、所定変調方式で変調されている中間周波信号を復調して受信情報として制御部3に出力している。 The radio unit 2 is configured to frequency convert the radio signal received from the antenna 1 to a predetermined intermediate frequency, and outputs to the control unit 3 as the received information by demodulating the intermediate frequency signal modulated by a predetermined modulation method there. また、無線部2 In addition, the radio section 2
は、制御部3から送られてきた送信情報を所定変調方式で変調して所定周波数に周波数変換してアンテナ1から放射している。 Is frequency-converted into a predetermined frequency transmission information sent from the control unit 3 modulates a predetermined modulation method is radiated from the antenna 1.

【0017】制御部3は、CPU7の制御により無線部2から送られてきた所定フォーマットの受信情報から制御情報と音声情報を取りだし、制御情報はCPU7に出力し、音声情報はPCMコーディック4に出力している。 The control unit 3 extracts the control information and audio information from the received information in a predetermined format sent from the radio unit 2 by the control of the CPU 7, the control information is output to the CPU 7, the audio information is outputted to the PCM codec 4 doing. また、PCMコーディック4から入力された音声情報にCPU7から入力された制御情報を付加して所定フォーマットの送信情報として無線部2に出力している。 Moreover, and outputs the added control information input from the CPU7 to the voice information inputted from the PCM codec 4 to the radio section 2 as the transmission information of a predetermined format.

【0018】PCMコーディック4は、制御部3から入力された音声情報(ADPCM信号)を復号化(PCM The PCM codec 4, decodes the audio information (ADPCM signal) input from the control unit 3 (PCM
信号)して、この復号化したデジタル信号をアナログ信号に変換してアンプ部5に出力している。 Signal) that outputs the digital signal the decoding to the amplifier unit 5 into an analog signal. また、アンプ部5から入力されたアナログ音声信号をデジタル信号に変換(PCM信号)して、このデジタル信号を符号化した音声情報(ADPCM信号)を制御部3に出力している。 The conversion of the analog audio signal input from the amplifier unit 5 into a digital signal (PCM signal) to, and outputs the digital signal encoded audio information (ADPCM signal) to the control unit 3.

【0019】アンプ部5は、圧力センサ部8から入力された耳部の密閉状態情報に基づいて、CPU7によりP The amplifier unit 5, based on the closed state information of the ears inputted from the pressure sensor unit 8, P by CPU7
CMコーディック4から入力されたアナログ音声信号を普通に増幅あるいは所定周波数帯域を増幅してスピーカ部6から放音する。 By amplifying the normal amplification or a predetermined frequency band analog audio signal input from the CM codec 4 to output from the speaker unit 6. この部分は、本発明の特徴であり詳細は、図2に示している。 This part is a is more characteristic of the present invention is shown in FIG.

【0020】図2において、51は受話信号が入力される入力端子で、この入力端子51にスイッチ部52を接続している。 [0020] In FIG. 2, 51 denotes an input terminal to which the reception signal is input, and connects the switch unit 52 to the input terminal 51. このスイッチ部52は、CPU7のスイッチ切換え信号により切換え動作するもので、一方の切換え先を直接スピーカアンプ54に接続し、他方の切換え先を後述するスピーカ部6の受話用スピーカ6aの周波数特性を調整する周波数特性生成部53に接続している。 The switch unit 52, which operates switched by the switch changeover signal CPU 7, plug one switching destination directly speaker amplifier 54, the frequency characteristic of the received speaker 6a of the speaker unit 6 to be described later and the other switching destination It is connected to the frequency characteristic generating unit 53 to be adjusted.

【0021】周波数特性生成部53は、BPF(バンド・パス・フィルタ)部531、帯域別アンプ部532、 The frequency characteristic generating unit 53, BPF (band pass filter) section 531, band-by-band amplifier 532,
加算器533からなるものである。 It is made of the adder 533. ここで、BPF部5 Here, BPF unit 5
31は、入力受話信号の300〜3400Hzの間を1 31 1 between the 300~3400Hz the input received signal
00Hzごとの複数の周波数帯域に分けるようにしている。 So that into a plurality of frequency bands for each 00Hz. また、帯域別アンプ部532は、各周波数帯域に応じて異なる増幅率を設定された複数のアンプ532a、 Further, the band-by-band amplifier 532 includes a plurality of amplifiers 532a to set the amplification factor varies depending on each frequency band,
532b…を有している。 532b ... the have. 加算器533は、帯域別アンプ部532の複数のアンプ532a、532b…の出力を加算するものである。 Adder 533, a plurality of amplifiers 532a of the band-by-band amplifier 532 is for adding 532b ... output. この場合、帯域別アンプ部53 In this case, the band-by-band amplifier 53
2の各アンプ532a、532b、…の増幅率は、低い周波帯域で大きく、高い周波帯域になるほど小さくなるように設定していて、図5に示すような所定の周波数特性を得られるようにしている。 2 of each amplifier 532a, 532b, ... amplification factor of greater at lower frequency band, and are set to decrease with decreasing high frequency band, so as to obtain a predetermined frequency characteristic as shown in FIG. 5 there.

【0022】このような周波数特性生成部53には、スピーカアンプ54を接続している。 [0022] Such frequency characteristic generating unit 53 connects the speaker amplifier 54. そして、このスピーカアンプ54には、受話用スピーカ6aを接続している。 Then, this speaker amplifier 54, connecting the receiver speaker 6a. この場合、受話用スピーカ6aは、図示しない電話機本体の送受話器の耳をあてがう受話部分に設けられており、この受話部分を耳部が完全密閉した状態で、上述した図3に示す音圧と周波数の関係がほぼフラットになる特性を有している。 In this case, the receiving speaker 6a is provided on the receiving portion Ategau ears handset of telephone body (not shown), with the ear the earpiece portion is completely sealed, the sound pressure shown in FIG. 3 described above relationship between the frequency has a characteristic that substantially flat.

【0023】また、電話機の送受話器の受話部分には、 [0023] In addition, the receiver portion of the handset of the phone,
耳部による密閉状態を検出する圧力センサ部8を設けている。 It is provided with a pressure sensor 8 for detecting the closed state by the ear. この圧力センサ部8は、圧力センサ81と圧力センサ判定部82からなるもので、圧力センサ81は、受話部分に対する耳部の押付け状態を検出し、圧力センサ判定部82は、圧力センサ81の検出出力から受話部分での耳部の密閉状態を判定するようになっている。 The pressure sensor unit 8 is made of a pressure sensor 81 and pressure sensor judgment section 82, the pressure sensor 81 detects a state pressing the ear against the receiving portion, the pressure sensor judgment section 82, detection of the pressure sensor 81 It is adapted to determine the sealed state of the ear portion in the receiving portion from the output.

【0024】そして、この圧力センサ部8の出力を、C [0024] Then, the output of the pressure sensor unit 8, C
PU7に送るようにしている。 So that send to PU7. CPU7は、圧力センサ部8の圧力センサ判定部82での判定結果によりスイッチ部52の切換えを制御するもので、圧力センサ判定部82が受話部分と耳部が密閉状態にあると判定すると、 CPU7 is for controlling the switching of the switch unit 52 by the determination result of the pressure sensor judgment section 82 of the pressure sensor unit 8, the pressure sensor determination section 82 determines that receiving portion and an ear portion is in a closed state,
スイッチ部52を直接スピーカアンプ54側に切換え、 Switching the switch unit 52 to direct the speaker amplifier 54 side,
また、受話部分と耳部が密閉状態にないと判定すると、 Further, if it is determined that receiving portion and the ear portion is not in the closed state,
スイッチ部52を周波数特性生成部53側に切換えるようなスイッチ切換え信号を出力するようにしている。 And to output a switch changeover signal to switch the switch unit 52 to the frequency characteristic generating unit 53 side.

【0025】また、アンプ部5は、スピーカ部6の送話用スピーカ(図示せず)から入力されたアナログ信号を増幅してPCMコーディック4に出力する。 Further, the amplifier unit 5 outputs the PCM codec 4 amplifies the analog signal input from the transmitting speaker of the speaker unit 6 (not shown). 次に、以上のように構成した実施例の動作を説明する。 Next, the operation of the embodiment constructed as described above.

【0026】いま、電話機が通話状態にあり、利用者が送受話器の受話部分を耳部にあてがい相手から送られてくる通話音声を受話用スピーカを介してり受けているものとする。 [0026] Now, the phone is in the call state, it is assumed that the received Ri through the earpiece speaker calls voice which the user is sent from the other party Ategai to the ears of the receiver portion of the handset.

【0027】この状態で、圧力センサ部8では、圧力センサ81により受話部分に対する耳部の押付け状態を検出し、この圧力センサ81の検出出力に基づいて圧力センサ判定部82により受話部分での耳部の密閉状態を判定する。 [0027] In this state, the pressure sensor unit 8, detects a state pressing the ear against the receiving portion by the pressure sensor 81, the ears in the receiving portion by the pressure sensor determining unit 82 based on the detection output of the pressure sensor 81 determining the closed state of the parts.

【0028】ここで、圧力センサ判定部82により受話部分と耳部が密閉状態にあると判定されると、CPU7 [0028] Here, when the receiving portion and the ear portion by the pressure sensor determining unit 82 is determined to be in a closed state, CPU 7
からのスイッチ切換え信号によりスイッチ部52は、直接スピーカアンプ54側に切換えられる。 Switch unit 52 by the switch changeover signal from the switched directly side speaker amplifier 54.

【0029】これにより、入力端子51に入力される受話信号は、直接スピーカアンプ54を介して受話用スピーカ6aに送られ、通話音声として再生される。 [0029] Thus, the received signal input to the input terminal 51 is sent to the receiving speaker 6a via the direct speaker amplifier 54, is reproduced as speech sound. この場合、受話用スピーカ6aは、上述した図3に示す音圧と周波数の関係がほぼフラットになる特性を有しているので、低域から高域に亘って安定した通話音声を再生することができる。 In this case, the receiving speaker 6a is because it has the property of substantially flat relationship of the sound pressure and frequency shown in FIG. 3 described above, to reproduce a stable call voice over from the low-frequency to high-frequency can.

【0030】一方、圧力センサ判定部82により受話部分と耳部が密閉状態にないと判定されると、CPU7からのスイッチ切換え信号によりスイッチ部52は、周波数特性調整部53側に切換えられる。 On the other hand, when the receiving portion and the ear portion is determined not in a closed state by the pressure sensor judgment section 82, the switch unit 52 by the switch changeover signal from the CPU7 is switched to the frequency characteristic adjusting section 53 side.

【0031】これにより、入力端子51に入力される受話信号は、周波数特性生成部5に送られる。 [0031] Thus, the received signal input to the input terminal 51 is sent to the frequency characteristic generation unit 5. すると、入力受話信号は、まず、BPF部531により300〜3 Then, the input received signal is, first, by the BPF 531 300-3
400Hzの間を100Hzごとの複数帯域に分けられ、次いで、帯域別アンプ部532に送られ、各周波数帯域に応じて増幅率を設定された複数のアンプ532 Divided between 400Hz to multiple bands of each 100 Hz, then sent to the band-by-band amplifier 532, a plurality of amplifiers 532 sets the amplification factor in response to each frequency band
a、532b、…により各周波数帯域毎に増幅され、その後、加算器533により加算され出力される。 a, 532b, amplified ... by for each frequency band, then is added by the adder 533 is output.

【0032】この場合、帯域別アンプ部532の各アンプ532a、532b、…の増幅率は、低い周波帯域で大きく、高い周波帯域になるほど小さくなるように設定しているので、加算器53からの加算出力は、図5に示すように低い周波帯域での音圧レベルが大きく、高い周波帯域になるほど音圧レベルが小さくなるような周波数特性の出力として得られる。 [0032] In this case, each amplifier 532a of the band-by-band amplifier unit 532, 532b, is ... amplification factor of lower large in frequency band, since the set to decrease with decreasing high frequency band, from the adder 53 addition output is greater sound pressure level at low frequency band as shown in FIG. 5, is obtained as an output of the frequency characteristics as the sound pressure level as will high frequency band is reduced. そして、加算器533からの出力は、スピーカアンプ34を介して受話用スピーカ6aに送られる。 The output from the adder 533 is sent to the receiving speaker 6a via a speaker amplifier 34.

【0033】この場合、受話用スピーカ6aは、耳部の密閉状態が不完全になっているため、この時の周波数特性が、上述した図4に示すように周波数の低い帯域で、 [0033] In this case, the receiving speaker 6a, since the sealed state of the ear portion is incomplete, the frequency characteristics at this time, the band of low frequencies as shown in FIG. 4 described above,
音圧レベルが著しく低下したものになっているが、加算器533の加算出力として図5に示す周波数特性の出力が与えられるので、受話用スピーカ6aでの周波数特性は改善され、上述した図3に示す特性のように音圧と周波数の関係がほぼフラットの低域から高域に亘って安定した通話音声を再生することができるようになる。 While the sound pressure level is in what was significantly reduced, the output of the frequency characteristic shown in FIG. 5 as the addition output of the adder 533 is given, the frequency characteristic at the receiving speaker 6a is improved, 3 as described above it is possible to reproduce a stable call voice over the high frequency from approximately flat low frequency relationship of the sound pressure and the frequency as the characteristics shown in.

【0034】従って、このようにすれば電話機の送受話器の受話部分に対する耳部による密閉状態を検出する圧力センサ部8を設け、受話部分と耳部が密閉状態にある場合は、入力受話信号をそのまま受話用スピーカ6aに与えて再生し、受話部分と耳部が密閉状態にない場合は、入力受話信号を周波数特性生成部53に与えて、図5に示すように低い周波帯域での音圧レベルが大きく、 [0034] Thus, in this way by the pressure sensor 8 for detecting the closed state by the ear for receiving the portion of the telephone handset is provided, if the receiving portion and the ear portion is in the closed state, the input received signal it plays given to receiving speaker 6a, when receiving portion and the ear portion is not in the closed state, giving an input received signal to the frequency characteristic generating unit 53, the sound pressure at a low frequency band as shown in FIG. 5 level is large,
高い周波帯域になるほど音圧レベルが小さくなるような周波数特性の受話信号を生成して受話用スピーカ6aに与えるようにしたので、耳部の密閉状態が不完全の状態での受話用スピーカ6aでの周波数特性が最適なものに改善され、従来のように受話部分での耳部の密閉状態が不完全になると、この時の受話用スピーカの周波数特性の劣化により、周波数の低い帯域で音圧が著しく低下し、低音域が極端に聞きずらくなるような不都合が解消され、低域から高域に亘って安定した通話音声が得られることになる。 In receiving speaker 6a at high since to give the receiving speaker 6a as the sound pressure level becomes frequency band to generate a received signal in the frequency characteristics such that small, sealed ears incomplete state an improved frequency characteristic optimal, the sealed state of the ear portion of the conventional receiving part as may be incomplete, the deterioration of the frequency characteristics in this case the receiving speaker for the sound in a band of low frequencies pressure significantly reduced, inconvenience such as bass is pleasure not excessively listen is eliminated, so that a stable call voice over from the low-frequency to high-frequency range is obtained.

【0035】なお、第1実施例では、周波数特性生成部53の各BPF部531、帯域別アンプ部532、加算器533での処理をアナログ処理としたが、DSPなどのデジタル信号処理を採用してもよい。 [0035] In the first embodiment, each of the BPF 531 of the frequency characteristic generating unit 53, band-by-band amplifier 532, but the process in the adder 533 to an analog processing, employs a digital signal processing such as DSP it may be. このようなデジタル信号処理を用いれば、部品点数の低減を始め、正確な処理が実現できる。 The use of such a digital signal processing, including a reduction in the number of components, accurate processing can be realized.

【0036】(第2実施例)図6は、第2実施例の全体構成を示している。 [0036] (Second Embodiment) FIG. 6 shows an overall configuration of the second embodiment. この場合、図6は、第1図と同一部分には同符号を付している。 In this case, FIG. 6, in FIG. 1, the same parts are denoted by the same reference numerals. 図において、PCMコーディック4から入力された音声信号は、アンプ11を介してスピーカ部6の受話用スピーカを接続している。 In the figure, the audio signal inputted from the PCM codec 4 connects the receiving speaker for speaker 6 through the amplifier 11. この場合、アンプ11は、CPU12の指示により特大、 In this case, the amplifier 11, oversized accordance with an instruction from the CPU12,
大、中、小の4段階の範囲で増幅率が切換えられ、スピーカ部6の受話用スピーカを通常の使用の他に、拡声スピーカとしても使用できるようになっている。 Large, medium, the amplification factor is switched in a range of 4 stages of small, in addition to using the receiver speaker for speaker portion 6 of the normal, so that can be used as a loudspeaker.

【0037】CPU12には、距離センサ9と圧力センサ10を接続していて、これら距離センサ9および圧力センサ10からの出力に応じてアンプ11の4段階の増幅率を決定するようにしている。 [0037] CPU12, the distance sensor 9 and are connected a pressure sensor 10, so as to determine the 4-stage amplification factor of the amplifier 11 in response to outputs from the distance sensors 9 and the pressure sensor 10.

【0038】ここで、距離センサ9は、図示しない電話機の送受話器の耳をあてがう受話部分に設けられ、図7 [0038] Here, the distance sensor 9 is provided in the receiving portion Ategau ears handset (not shown) phone, 7
に示すように受話部分と耳部との距離に応じた出力を発生するようにしている。 And so as to generate an output corresponding to the distance between the receiving portion and the ear portion as shown in FIG. また、圧力センサ10も電話機の送受話器の耳をあてがう受話部分に設けられており、 Also, the pressure sensor 10 is provided on the receiving portion Ategau ears handset of telephone,
図8に示すように受話部分に対する耳部の押付け強さに応じた出力を発生するようにしている。 And so as to generate an output corresponding to the pressing strength of the ear portion for receiving portions as shown in FIG.

【0039】次に、以上のように構成した実施例の動作を説明する。 Next, the operation of the embodiment constructed as described above. この場合、図9のフローチャートに示すように、まず、アイドリング中から図示しない通話ボタンを押すと(ステップ801)、送受話器の受話部分と耳部との距離が所定距離L(例えば10cm)以内かを距離センサ9の出力から判断する(ステップ802)。 In this case, as shown in the flowchart of FIG. 9, first, pressing the call button (not shown) from idling (step 801), transmission distance is a predetermined distance L (e.g., 10 cm) between the receiving portion and the ear portion of the handset or less determining from the output of the distance sensor 9 (step 802).

【0040】ここで、所定距離L以内であれば、CPU [0040] In this case, if it is within a predetermined distance L, CPU
12の指示によりアンプ11の増幅率は中以下に設定され、スピーカ部6の受話スピーカは、通常の状態で用いられる(ステップ803)。 Amplification factor of the amplifier 11 is set below the medium by instruction 12, receiver speaker of the speaker unit 6 is used in a normal state (step 803).

【0041】この状態で、アンテナ1、無線部2、PC [0041] In this state, the antenna 1, radio section 2, PC
Mコーディック4、アンプ11を介してダイヤルトーンが聞こえたならば、次に、相手先に電話を掛ける準備に入る(ステップ804、ステップ805)。 M codec 4, if the dial tone is heard via the amplifier 11, then enters the telephone call ready to the destination (step 804, step 805).

【0042】また、この状態から、受話部分から耳部を離し(ステップ806)、送受話器の受話部分と耳部との距離が所定距離L(例えば10cm)を越えると(ステップ802)、図7に示すように距離センサ9の出力が大きくなり、これにともないCPU12の指示によりアンプ11の増幅率は特大に設定され、スピーカ部6の受話スピーカは拡声スピーカとして用いられるようになる(ステップ807)。 Further, from this state, release the ears from the receiving portion (step 806), the distance between the receiving portion and the ear portion of the handset exceeds a predetermined distance L (e.g., 10 cm) (step 802), 7 the output of the distance sensor 9 increases as shown in accordance with an instruction from the CPU12 due to the amplification factor of the amplifier 11 is set to oversized, receiver speaker of the speaker unit 6 is to be used as a loudspeaker (step 807) . そして、この状態でも、アンテナ1、無線部2、PCMコーディック4、アンプ11を介してダイヤルトーンが聞こえている状態である。 Even in this state, the antenna 1, radio section 2, PCM codec 4, via the amplifier 11 is a state where the dial tone is heard. ここで、相手先のダイヤルを入力し、呼出しを行った後に拡声スピーカによる通話に入る(ステップ809、ステップ810)。 Here, enter the dialing of the destination, into the call by the loudspeaker after the call (step 809, step 810).

【0043】この通話状態で、再び、送受話器の受話部分と耳部との距離が所定距離L(例えば10cm)以内かを距離センサ9の出力から判断する(ステップ81 [0043] In this communication state, again, the distance between the receiving portion and the ear portion of the handset to determine whether a predetermined distance L (e.g., 10 cm) within the output of the distance sensor 9 (step 81
1)。 1). この場合、所定距離L以内でなければ、スピーカ部6の受話スピーカを拡声スピーカとしての通話を続ける。 In this case, if within the predetermined distance L, and reception speaker of the speaker unit 6 still talk as loudspeakers. また、所定距離L以内であれば、CPU12の指示によりアンプ11の増幅率は中以下に設定され、スピーカ部6の受話スピーカは、通常の使用状態に戻され(ステップ812)、通常スピーカでの通話に切換えられる。 Further, if it is within a predetermined distance L, the amplification factor of the amplifier 11 is set below the medium by instruction of the CPU 12, receiver speaker of the speaker unit 6 is returned to the normal use (step 812), in the normal speaker It is switched to the call.

【0044】この状態で、相手先の声が聞き取りにくい場合、利用者が受話部分に対して耳部を押し付けると(ステップ813、ステップ814)、圧力センサ10 [0044] In this state, if difficult to hear the voice of the other party, when the user presses the ears against the receiving portion (step 813, step 814), the pressure sensor 10
より図8に示すように受話部分に対する耳部の押付け強さに応じた出力が発生する。 Output corresponding to the pressing strength of the ear portion to the reception portion occurs as more shown in FIG. すると、この時の出力に応じたCPU12の指示によりアンプ11の増幅率が中以上に設定され、スピーカ部6の受話スピーカの音量が引上げられる(ステップ815)。 Then, the amplification factor of the amplifier 11 is set to medium or higher by an instruction CPU12 corresponding to the output at this time, the volume of the receiver speaker of the speaker unit 6 is raised (step 815).

【0045】この場合、受話部分に対する耳部の押付け強さを任意に変えることで、圧力センサ10からの検出出力を変化させ、CPU12によりアンプ11の増幅率が段階的に切換えられ、スピーカ部6の受話用スピーカでの受話音量を最適な状態に設定することができるようになる。 [0045] In this case, by arbitrarily changing the pressing strength of the ear portion for receiving portions, by changing the detection output from the pressure sensor 10, the amplification factor of the amplifier 11 is switched stepwise by CPU 12, a speaker unit 6 it is possible to set the receiver volume in the receiving speaker to the optimum state.

【0046】従って、このようにすれば、電話機本体の受話部分と耳部との距離に応じた出力を発生する距離センサ9を有し、受話部分と耳部との距離が所定距離Lを越えたときの距離センサ9の出力によりスピーカ部6の受話用スピーカを拡声スピーカとして駆動するようにしたので、受話用スピーカの拡声スピーカへの切換えを自動的に行うことができ、これにより受話器より耳を離した状態でも相手先との通話を続けることができ、メモなどを取る場合などに便利になるなど、使い勝手を改善できる。 [0046] Thus, in this manner, has a distance sensor 9 for generating an output corresponding to the distance between the receiving portion and the ear portion of the phone body, the distance between the receiving portion and the ear portion exceeds the predetermined distance L since so as to drive the receiving speaker for the speaker 6 as the loudspeaker by the output of the distance sensor 9 when the can carry out switching to loudspeaker of the receiving speaker automatically, thereby ears from receiver also you can continue the conversation with the other party in the state in which release the, like become useful, for example, if you take note of the like, it is possible to improve the usability.

【0047】また、受話部分に対する耳部の押付け強さに応じた出力を発生する圧力センサ10を有し、受話部分に対する耳部の押付け強さに応じてスピーカ部6の受話用スピーカの音量を切換えるようにしているので、受話用スピーカでの音量調整を自動的に行うことができ、 Further, a pressure sensor 10 for generating an output corresponding to the pressing strength of the ear portion for receiving portions, the volume of the receiving speaker for speaker unit 6 in response to the pressing strength of the ear portion for receiving portions since the way switch, it is possible to automatically perform volume adjustment in the receiving speaker,
所望する受話用スピーカの音量を簡単に得られ、従来の音量調整を手動操作により行うもと比べ、最適な音量に調整するまでの手間を大幅に省けるとともに、耳を近付けた状態で、大きな音量に誤調整するなども皆無にでき、耳を痛めるなどのおそれも回避できる。 Desired easily obtained the volume of the receiving speaker to the conventional volume control compared Moto performed by a manual operation, with greatly Habukeru the effort to adjust to the optimum volume in a state of close ears, louder erroneous such as adjusting can also be nil, can it it also be avoided, such as damage to the ear to. なお、本発明は、上記実施例にのみ限定されず、要旨を変更しない範囲で適宜変形して実施できる。 The present invention is not limited only to the above embodiments can be carried out appropriately modified within a range not changing the gist.

【0048】 [0048]

【発明の効果】以上述べたように本発明によれば、電話機本体の受話部分に対する耳部の密閉状態を検出する密閉状態検出手段を有し、この手段で受話部分に対する耳部の密閉状態が検出されると入力受話信号をそのまま受話用スピーカに与え、受話部分に対する耳部の密閉状態が検出されないと、入力受話信号を複数の周波数帯域に分けるとともに、これら複数の周波数帯域ついて各別に増幅を行うことにより生成される所定周波数特性の受話信号を受話用スピーカに与えるようにしているので、受話部分での耳部の密閉状態が不完全な状態でも受話用スピーカの周波数特性を最適なものに改善することができ、低音域が極端に聞きずらくなるような不都合が解消され、低域から高域に亘って安定した通話音声が得られる。 According to the present invention as described above, according to the present invention has a sealed state detecting means for detecting a closed state of the ear portion for receiving part of the telephone main body, the sealing state of the ear portion for receiving part of this means given the detected input reception signal as it is to the receiving speaker, the sealed state of the ear portion for receiving part is not detected, with dividing the input received signal into a plurality of frequency bands, the amplification individually with the plurality of frequency bands since the received signal of a predetermined frequency characteristic is generated by performing have to give the receiving speaker, the optimal frequency response of the earpiece speaker in a closed state is defective ears in receiving portion can be improved, and eliminates the inconveniences bass is pleasure not excessively listen, stable call voice is obtained over a low frequency to a higher frequency.

【0049】また、電話機本体の受話部分と耳部との距離に応じた出力を発生する距離検出手段を有し、受話部分と耳部との距離が所定距離を越えたときに距離検出手段より発生する出力により受話用スピーカを拡声スピーカとして駆動するようにしているので、受話用スピーカの拡声スピーカへの切換えを自動的に行うことができ、 [0049] Further, a distance detecting means for generating an output corresponding to the distance between the receiving portion and the ear portion of the telephone body, from the distance detecting means when the distance between the receiving portion and the ear portion exceeds a predetermined distance since so as to drive the receiving speaker as loudspeaker by output generated, it is possible to switch to the loudspeaker of the receiving speaker automatically,
受話器より耳を離した状態でも相手先との通話が可能になって、メモなどを取る場合などに便利になるなど、使い勝手を改善できる。 It made it possible to call with the other party even when you release the ear from the receiver, such as come in handy, for example, when you take notes, etc., can improve the usability.

【0050】また、電話機本体の受話部分に対する耳部の押付け強さに応じた出力を発生する押付け強さ検出手段を有し、この押付け強さ検出手段の出力に応じて受話用スピーカの音量を切換えるようにしているので、受話用スピーカに対する音量調整を自動的に行うことができ、所望する受話用スピーカの音量を簡単に得られることから、最適な音量に調整するまでの手間を大幅に省けるとともに、耳を近付けた状態で、大きな音量に誤調整するなども皆無にでき、耳を痛めるなどのおそれも回避できる。 [0050] Also, having a strength detection means pressing for generating an output corresponding to the pressing strength of the ear portion for receiving part of the telephone body, the volume of the receiving speaker in accordance with the output of the pressing strength detecting means since the way switch, can be performed automatically volume adjustment for receiving speaker, Habukeru greatly effort since it easily obtained the volume of the desired receiving speaker, until adjusted to the optimum volume with, in a state in which close the ears, can also be nil, such as erroneously adjusted to high volume, your such as damage to the ear it can be avoided.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1実施例の概略構成を示す図。 It shows a schematic configuration of a first embodiment of the present invention; FIG.

【図2】第1実施例の特徴構成を示す図。 2 is a diagram showing a characteristic configuration of the first embodiment.

【図3】受話用スピーカの周波数特性を示す図。 FIG. 3 shows the frequency characteristic of the received speaker.

【図4】受話用スピーカの周波数特性を示す図。 FIG. 4 shows the frequency characteristic of the received speaker.

【図5】周波数特性生成部で生成される受話信号の周波数特性を示す図。 5 is a diagram showing a frequency characteristic of the received signal generated by the frequency characteristic generation unit.

【図6】本発明の第2実施例の概略構成を示す図。 6 is a diagram showing a schematic configuration of a second embodiment of the present invention.

【図7】第2実施例に用いられる距離センサの特性図。 [7] characteristic diagram of a distance sensor used in the second embodiment.

【図8】第2実施例に用いられる圧力センサの特性図。 [8] characteristic diagram of the pressure sensor used in the second embodiment.

【図9】第2実施例の動作を説明するためのフローチャート。 Figure 9 is a flowchart for illustrating the operation of the second embodiment.

【符号の説明】 DESCRIPTION OF SYMBOLS

1…アンテナ、 2…無線部、 3…制御部、 4…PCMコーディック、 5…アンプ、 6…スピーカ部、 7…CPU、 51…入力端子、 52…スイッチ部、 53…周波数特性生成部、 531…BPF部、 532…帯域別アンプ部、 533…加算器、 54…スピーカアンプ、 6a…受話用スピーカ、 8…圧力センサ部、 81…圧力センサ、 82…圧力センサ判定部、 9…距離センサ、 10…圧力センサ。 1 ... antenna, 2 ... radio unit, 3 ... control unit, 4 ... PCM codec, 5 ... amplifiers 6 ... speaker, 7 ... CPU, 51 ... input terminal, 52 ... switch unit, 53 ... frequency characteristic generating section, 531 ... BPF section, 532 ... band-by-band amplifier unit, 533 ... adder, 54 ... speaker amplifier, 6a ... receiving speaker, 8 ... pressure sensor unit, 81 ... pressure sensor, 82 ... pressure sensor judgment section, 9 ... distance sensor, 10 ... pressure sensor.

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 電話機本体の受話部分に設けられ且つ入力受話信号を再生する受話用スピーカと、 前記電話機本体の受話部分に対する耳部の密閉状態を検出する密閉状態検出手段と、 前記入力受話信号を複数の周波数帯域に分けるとともに、これら複数の周波数帯域ついて各別に増幅を行い所定周波数特性の受話信号を生成する周波数特性生成手段と、 密閉状態検出手段で前記受話部分に対する耳部の密閉状態が検出されると前記入力受話信号を前記受話用スピーカに与え、前記密閉状態検出手段で前記受話部分に対する耳部の密閉状態が検出されないと周波数特性生成手段で生成された所定周波数特性の受話信号を前記受話用スピーカに与える制御手段とを具備したことを特徴とする電話機。 And 1. A receiver speaker for reproducing and input received signal is provided to receiver portion of the telephone main body, a closed state detecting means for detecting a closed state of the ear portion for receiving the portion of the phone body, the input reception signal together are divided into a plurality of frequency bands, the frequency characteristic generating means for generating a received signal of a predetermined frequency characteristic of amplification were performed separately to each with the plurality of frequency bands, the sealed state of the ear portion to the receiving portion in a closed state detecting means to be detected given the input reception signal to the receiver speaker, the received signal of a predetermined frequency characteristic sealed ear portion is generated by the frequency characteristic generating means when not detected for the received portion by the sealed state detecting means telephone, characterized by comprising a control means for giving to the receiver speaker.
  2. 【請求項2】 周波数特性生成手段は、入力受話信号を複数の周波数帯域に分けるフィルタ手段、これら複数の周波数帯域ついて各別に増幅を行う帯域別増幅手段、これら帯域別増幅手段の出力を加算する加算手段よりなることを特徴とする請求項1記載の電話機。 2. A frequency characteristic generating means, filter means dividing the input received signal into a plurality of frequency bands, the band-by-band amplifying means for amplifying with the plurality of frequency bands to each other, adds the outputs of the band-by-band amplifying means phone according to claim 1, characterized in that from the adding means.
  3. 【請求項3】 電話機本体の受話部分に設けられ且つ入力受話信号を再生する受話用スピーカと、 前記電話機本体の受話部分に対する耳部の押付け強さに応じた出力を発生する押付け強さ検出手段と、 この押付け強さ検出手段の出力に応じて前記受話用スピーカの音量を切換えるスピーカ駆動手段とを具備したことを特徴とする電話機。 3. A receiver speaker for reproducing and input received signal is provided to receiver portion of the telephone main body, strength detecting means pressing for generating an output corresponding to the pressing strength of the ear portion for receiving the portion of the phone body If the phone, characterized by comprising a speaker driving means for switching the volume of the receiving speaker in accordance with the output of the pressing strength detection means.
  4. 【請求項4】 電話機本体の受話部分に設けられ且つ入力受話信号を再生する受話用スピーカと、 前記電話機本体の受話部分と耳部との距離に応じた出力を発生する距離検出手段と、 前記受話部分と耳部との距離が所定距離を越えたとき前記距離検出手段からの出力により前記受話用スピーカを拡声スピーカとして駆動するスピーカ駆動手段とを具備したことを特徴とする電話機。 4. A receiver speaker for reproducing and input received signal is provided to receiver portion of the telephone main body, a distance detecting means for generating an output corresponding to the distance between the receiving portion and the ear portion of the phone body, the telephone distance between the receiving portion and the ear portion is characterized by comprising a speaker driving means for driving the loudspeaker said receiving speaker by an output from said distance detecting means when it exceeds a predetermined distance.
JP27191493A 1993-10-29 1993-10-29 Telephone set Pending JPH07131268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27191493A JPH07131268A (en) 1993-10-29 1993-10-29 Telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27191493A JPH07131268A (en) 1993-10-29 1993-10-29 Telephone set

Publications (1)

Publication Number Publication Date
JPH07131268A true true JPH07131268A (en) 1995-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP27191493A Pending JPH07131268A (en) 1993-10-29 1993-10-29 Telephone set

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Country Link
JP (1) JPH07131268A (en)

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WO2011121740A1 (en) * 2010-03-30 2011-10-06 富士通株式会社 Telephone set, and sound adjustment method of telephone set
JP2013223213A (en) * 2012-04-19 2013-10-28 Yuji Hosoi Cartilage conduction vibration source apparatus and portable telephone
JP2016048941A (en) * 2015-11-05 2016-04-07 株式会社ファインウェル mobile phone
US9313306B2 (en) 2010-12-27 2016-04-12 Rohm Co., Ltd. Mobile telephone cartilage conduction unit for making contact with the ear cartilage
US9392097B2 (en) 2010-12-27 2016-07-12 Rohm Co., Ltd. Incoming/outgoing-talk unit and incoming-talk unit
US9479624B2 (en) 2012-01-20 2016-10-25 Rohm Co., Ltd. Mobile telephone
US9485559B2 (en) 2011-02-25 2016-11-01 Rohm Co., Ltd. Hearing system and finger ring for the hearing system
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US9705548B2 (en) 2013-10-24 2017-07-11 Rohm Co., Ltd. Wristband-type handset and wristband-type alerting device
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JP2005512440A (en) * 2001-12-11 2005-04-28 モトローラ・インコーポレイテッドMotorola Incorporated Communication device and method having active equalizing circuit
JP2005301355A (en) * 2004-04-06 2005-10-27 Matsushita Electric Works Ltd Crime prevention device and luminaire
JP4572565B2 (en) * 2004-04-06 2010-11-04 パナソニック電工株式会社 Security device and lighting equipment
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JP5382204B2 (en) * 2010-03-30 2014-01-08 富士通株式会社 Telephone, and audio adjustment method of the telephone
US8774397B2 (en) 2010-03-30 2014-07-08 Fujitsu Limited Telephone and voice adjustment method for telephone
US9716782B2 (en) 2010-12-27 2017-07-25 Rohm Co., Ltd. Mobile telephone
US9894430B2 (en) 2010-12-27 2018-02-13 Rohm Co., Ltd. Incoming/outgoing-talk unit and incoming-talk unit
US9313306B2 (en) 2010-12-27 2016-04-12 Rohm Co., Ltd. Mobile telephone cartilage conduction unit for making contact with the ear cartilage
US9392097B2 (en) 2010-12-27 2016-07-12 Rohm Co., Ltd. Incoming/outgoing-talk unit and incoming-talk unit
US9980024B2 (en) 2011-02-25 2018-05-22 Rohm Co., Ltd. Hearing system and finger ring for the hearing system
US9485559B2 (en) 2011-02-25 2016-11-01 Rohm Co., Ltd. Hearing system and finger ring for the hearing system
US9479624B2 (en) 2012-01-20 2016-10-25 Rohm Co., Ltd. Mobile telephone
US10079925B2 (en) 2012-01-20 2018-09-18 Rohm Co., Ltd. Mobile telephone
JP2013223213A (en) * 2012-04-19 2013-10-28 Yuji Hosoi Cartilage conduction vibration source apparatus and portable telephone
US9729971B2 (en) 2012-06-29 2017-08-08 Rohm Co., Ltd. Stereo earphone
US9742887B2 (en) 2013-08-23 2017-08-22 Rohm Co., Ltd. Mobile telephone
US10075574B2 (en) 2013-08-23 2018-09-11 Rohm Co., Ltd. Mobile telephone
US9705548B2 (en) 2013-10-24 2017-07-11 Rohm Co., Ltd. Wristband-type handset and wristband-type alerting device
US10103766B2 (en) 2013-10-24 2018-10-16 Rohm Co., Ltd. Wristband-type handset and wristband-type alerting device
US10013862B2 (en) 2014-08-20 2018-07-03 Rohm Co., Ltd. Watching system, watching detection device, and watching notification device
JP2016048941A (en) * 2015-11-05 2016-04-07 株式会社ファインウェル mobile phone
JP2016192797A (en) * 2016-07-01 2016-11-10 株式会社ファインウェル Sound output device

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