JP2009529297A - トーン検出および向上のために適応多帯域通過フィルタを含む高度トーン検出器 - Google Patents

トーン検出および向上のために適応多帯域通過フィルタを含む高度トーン検出器 Download PDF

Info

Publication number
JP2009529297A
JP2009529297A JP2008558444A JP2008558444A JP2009529297A JP 2009529297 A JP2009529297 A JP 2009529297A JP 2008558444 A JP2008558444 A JP 2008558444A JP 2008558444 A JP2008558444 A JP 2008558444A JP 2009529297 A JP2009529297 A JP 2009529297A
Authority
JP
Japan
Prior art keywords
signal
tone
input
frequency
filter
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2008558444A
Other languages
English (en)
Japanese (ja)
Other versions
JP2009529297A5 (https=
Inventor
ペソア，ルーチョ・エフ・シー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NXP USA Inc
Original Assignee
NXP USA Inc
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 NXP USA Inc filed Critical NXP USA Inc
Publication of JP2009529297A publication Critical patent/JP2009529297A/ja
Publication of JP2009529297A5 publication Critical patent/JP2009529297A5/ja
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Telephonic Communication Services (AREA)
  • Circuits Of Receivers In General (AREA)
JP2008558444A 2006-03-06 2007-01-29 トーン検出および向上のために適応多帯域通過フィルタを含む高度トーン検出器 Pending JP2009529297A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/368,729 US8483384B2 (en) 2006-03-06 2006-03-06 Enhanced tone detector including adaptive multi-bandpass filter for tone detection and enhancement
PCT/US2007/061190 WO2007120958A2 (en) 2006-03-06 2007-01-29 Enhanced tone detector including adaptive multi-bandpass filter for tone detection and enhancement

Publications (2)

Publication Number Publication Date
JP2009529297A true JP2009529297A (ja) 2009-08-13
JP2009529297A5 JP2009529297A5 (https=) 2010-03-11

Family

ID=38610270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008558444A Pending JP2009529297A (ja) 2006-03-06 2007-01-29 トーン検出および向上のために適応多帯域通過フィルタを含む高度トーン検出器

Country Status (5)

Country Link
US (1) US8483384B2 (https=)
JP (1) JP2009529297A (https=)
CN (1) CN101401398B (https=)
TW (1) TW200803336A (https=)
WO (1) WO2007120958A2 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE541410T1 (de) * 2008-06-30 2012-01-15 Freescale Semiconductor Inc Mehrfrequenztondetektor
US9058209B2 (en) * 2012-04-09 2015-06-16 Intel Corporation Methods and apparatus for efficient tone detection
US10376243B2 (en) * 2013-09-27 2019-08-13 Texas Instruments Incorporated Method and apparatus for low complexity ultrasound based heart rate detection
FR3033108B1 (fr) * 2015-02-25 2018-03-23 Continental Automotive France Selecteur de canal pour un recepteur radiofrequence
US9979831B2 (en) * 2015-03-30 2018-05-22 Mediatek Inc. Method for cellular text telephone modem operation with sampling rate conversion and machine readable medium
CN105654962B (zh) * 2015-05-18 2020-01-10 宇龙计算机通信科技(深圳)有限公司 信号处理方法、装置及电子设备
US10732313B2 (en) * 2015-06-26 2020-08-04 Metrotech Corporation System and method for locating underground lines using motion based responsiveness
GB2596169B (en) * 2020-02-11 2022-04-27 Tymphany Acoustic Tech Ltd A method and an audio processing unit for detecting a tone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000083090A (ja) * 1998-09-04 2000-03-21 Nec Corp 車載ハンズフリー電話装置
JP2004135309A (ja) * 2002-08-28 2004-04-30 Motorola Inc トーン検出器及びその方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241688A (en) 1990-12-17 1993-08-31 Motorola, Inc. Frequency and time slot synchronizaton using adaptive filtering
US5392348A (en) 1991-11-25 1995-02-21 Motorola, Inc. DTMF detection having sample rate decimation and adaptive tone detection
US6587559B1 (en) 1998-09-23 2003-07-01 Legerity Inc. Cross-frame dual tone multifrequency detector
US7003093B2 (en) 2000-09-08 2006-02-21 Intel Corporation Tone detection for integrated telecommunications processing
US7242762B2 (en) * 2002-06-24 2007-07-10 Freescale Semiconductor, Inc. Monitoring and control of an adaptive filter in a communication system
TWI281982B (en) * 2002-08-28 2007-06-01 Freescale Semiconductor Inc Tone detector and method therefor
US6917688B2 (en) 2002-09-11 2005-07-12 Nanyang Technological University Adaptive noise cancelling microphone system
US7844048B2 (en) 2004-03-08 2010-11-30 Freescale Semiconductor, Inc. Selective tone event detector and method therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000083090A (ja) * 1998-09-04 2000-03-21 Nec Corp 車載ハンズフリー電話装置
JP2004135309A (ja) * 2002-08-28 2004-04-30 Motorola Inc トーン検出器及びその方法

Also Published As

Publication number Publication date
CN101401398B (zh) 2012-12-12
WO2007120958A2 (en) 2007-10-25
US8483384B2 (en) 2013-07-09
US20070263842A1 (en) 2007-11-15
WO2007120958A3 (en) 2008-11-13
TW200803336A (en) 2008-01-01
CN101401398A (zh) 2009-04-01

Similar Documents

Publication Publication Date Title
JP2009529297A (ja) トーン検出および向上のために適応多帯域通過フィルタを含む高度トーン検出器
CN1672341B (zh) 通信系统及其方法
US6212229B1 (en) Adaptive pre-emphasis technique
US5793821A (en) Timing Recovery using group delay compensation
US8472433B2 (en) Voice communications system
EP0889615A2 (en) Multicarrier transmission with variable data rate
US20060142999A1 (en) Band correcting apparatus
US6470059B2 (en) Automatic filter for asymmetric digital subscriber line system
EP0545783A1 (fr) Modem semi-duplex pour réseau de radiotéléphones GSM
JP2000354078A (ja) 上りへの高速モデム通信
JPH09130315A (ja) セルラ方式のデータのエコーをキャンセルする方法および装置
JP4507504B2 (ja) 音声通信装置及び音声通信方法
CA2432935C (en) Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling
CN100490484C (zh) 语音通信系统
JP4383249B2 (ja) 音声通信システムおよびその電話機
US20040022308A1 (en) Adaptable hybrid and selection method for ADSL modem data rate improvement
US7583621B2 (en) Method and apparatus for suppressing echo cancelling in a packet switched network
JP4237226B2 (ja) パケット網でのモデム接続のためにｖ．８ビス信号を処理するためのシステムおよび方法
JP3975842B2 (ja) Ａｄｓｌ端末装置及びそれに用いるａｄｓｌ起動方法
US7369603B2 (en) Compensating for spectral attenuation
JP4512066B2 (ja) 電話機
CN1708920A (zh) 具有移动串音控制的回波消除装置
KR20040061092A (ko) 수신 이득을 자동으로 조정할 수 있는 비대칭 디지털가입자망 시스템 및 그 방법
JPH09102757A (ja) 通信端末装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100122

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100122

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111202

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20120227

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20120305

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120508

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20121112