WO2009016730A1 - 電子回路、電子機器及びゲイン制御方法 - Google Patents

電子回路、電子機器及びゲイン制御方法 Download PDF

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Publication number
WO2009016730A1
WO2009016730A1 PCT/JP2007/064959 JP2007064959W WO2009016730A1 WO 2009016730 A1 WO2009016730 A1 WO 2009016730A1 JP 2007064959 W JP2007064959 W JP 2007064959W WO 2009016730 A1 WO2009016730 A1 WO 2009016730A1
Authority
WO
WIPO (PCT)
Prior art keywords
head set
microphone
absence
gain
control unit
Prior art date
Application number
PCT/JP2007/064959
Other languages
English (en)
French (fr)
Inventor
Tadahiro Motoyama
Hiroyuki Oku
Original Assignee
Panasonic Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corporation filed Critical Panasonic Corporation
Priority to US12/671,193 priority Critical patent/US20100194561A1/en
Priority to JP2009525222A priority patent/JP5211053B2/ja
Priority to PCT/JP2007/064959 priority patent/WO2009016730A1/ja
Publication of WO2009016730A1 publication Critical patent/WO2009016730A1/ja

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices

Abstract

　ヘッドセット接続の有無と、ヘッドセットマイクの有無に応じて自動的にゲインを調整することにより、集音性能を向上させることができるとともに、不用意にマイクで集音されてしまうことを防ぐことができる電子回路。この回路では、電圧検出部（１０５）は、電源電圧としきい値との比較結果、または電源電圧のデジタル値を出力する。制御部（１０６）は、電圧検出部（１０５）における比較結果、または電源電圧のデジタル値に基づいてヘッドセットマイク（１６１）の有無を検出する。ゲイン設定部（１０９）は、制御部（１０６）でヘッドセット接続ありかつヘッドセットマイク無しを検出した場合には、制御部（１０６）でヘッドセット接続なしを検出した場合に比べて大きな値のゲインを設定する。可変増幅部（１１０）は、ゲイン設定部（１０９）で設定したゲインで、本体マイク（１０７）からの音声データを増幅する。
PCT/JP2007/064959 2007-07-31 2007-07-31 電子回路、電子機器及びゲイン制御方法 WO2009016730A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/671,193 US20100194561A1 (en) 2007-07-31 2007-07-31 Electronic circuit, electronic device, and gain control method
JP2009525222A JP5211053B2 (ja) 2007-07-31 2007-07-31 電子回路、電子機器及びゲイン制御方法
PCT/JP2007/064959 WO2009016730A1 (ja) 2007-07-31 2007-07-31 電子回路、電子機器及びゲイン制御方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/064959 WO2009016730A1 (ja) 2007-07-31 2007-07-31 電子回路、電子機器及びゲイン制御方法

Publications (1)

Publication Number Publication Date
WO2009016730A1 true WO2009016730A1 (ja) 2009-02-05

Family

ID=40303975

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/064959 WO2009016730A1 (ja) 2007-07-31 2007-07-31 電子回路、電子機器及びゲイン制御方法

Country Status (3)

Country Link
US (1) US20100194561A1 (ja)
JP (1) JP5211053B2 (ja)
WO (1) WO2009016730A1 (ja)

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* Cited by examiner, † Cited by third party
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JP5817368B2 (ja) * 2011-09-13 2015-11-18 ソニー株式会社 情報処理装置及び情報処理方法
KR102127622B1 (ko) * 2013-04-30 2020-06-29 삼성전자 주식회사 음성 입력 경로 제어방법 및 이를 지원하는 장치
US10028059B2 (en) 2015-08-24 2018-07-17 Microsoft Technology Licensing, Llc Headphone and associated host apparatus supporting both digital and analog audio connectivity
GB2567903A (en) * 2017-10-27 2019-05-01 Cirrus Logic Int Semiconductor Ltd Socket monitoring

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JPS62159953A (ja) * 1986-01-09 1987-07-15 Fujitsu Ltd 送受話器接続装置
JPH0580781A (ja) * 1991-09-24 1993-04-02 Mazda Motor Corp 車両用騒音制御装置
JPH07504551A (ja) * 1992-03-02 1995-05-18 エイシーエス・コミュニケーションズ・インク 自動ログオン・ログオフ検知式ヘッドフォン増幅器
JP2000286945A (ja) * 1999-03-31 2000-10-13 Risoo:Kk 骨導式補聴器のアダプタ
JP2001244843A (ja) * 2000-01-14 2001-09-07 Denso Corp 通信機器および通信機器によって送信される無線信号の強度調節方法
JP2003284015A (ja) * 2002-03-22 2003-10-03 Nec Saitama Ltd 携帯電話機

Also Published As

Publication number Publication date
JP5211053B2 (ja) 2013-06-12
JPWO2009016730A1 (ja) 2010-10-07
US20100194561A1 (en) 2010-08-05

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