CN1122963C - 用于测量多个传感器处的信号电平和延迟的方法与装置 - Google Patents

用于测量多个传感器处的信号电平和延迟的方法与装置 Download PDF

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Publication number
CN1122963C
CN1122963C CN98808780A CN98808780A CN1122963C CN 1122963 C CN1122963 C CN 1122963C CN 98808780 A CN98808780 A CN 98808780A CN 98808780 A CN98808780 A CN 98808780A CN 1122963 C CN1122963 C CN 1122963C
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China
Prior art keywords
signal
wave filter
handling equipment
filtering characteristic
sensors
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Expired - Fee Related
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CN98808780A
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Chinese (zh)
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CN1269902A (zh
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K·P·海恩德尔
J·A·J·拉斯姆松
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/345—Circuits therefor using energy switching from one active element to another
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

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  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
CN98808780A 1997-07-11 1998-07-03 用于测量多个传感器处的信号电平和延迟的方法与装置 Expired - Fee Related CN1122963C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/890,768 US6430295B1 (en) 1997-07-11 1997-07-11 Methods and apparatus for measuring signal level and delay at multiple sensors
US08/890,768 1997-07-11

Publications (2)

Publication Number Publication Date
CN1269902A CN1269902A (zh) 2000-10-11
CN1122963C true CN1122963C (zh) 2003-10-01

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Family Applications (1)

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CN98808780A Expired - Fee Related CN1122963C (zh) 1997-07-11 1998-07-03 用于测量多个传感器处的信号电平和延迟的方法与装置

Country Status (14)

Country Link
US (1) US6430295B1 (enExample)
EP (1) EP0995188B1 (enExample)
JP (1) JP4082649B2 (enExample)
KR (1) KR100480404B1 (enExample)
CN (1) CN1122963C (enExample)
AU (1) AU747618B2 (enExample)
BR (1) BR9810695A (enExample)
DE (1) DE69837663D1 (enExample)
EE (1) EE200000008A (enExample)
MY (1) MY120049A (enExample)
PL (1) PL337971A1 (enExample)
SG (1) SG70644A1 (enExample)
TW (1) TW386330B (enExample)
WO (1) WO1999003091A1 (enExample)

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Publication number Publication date
AU747618B2 (en) 2002-05-16
WO1999003091A1 (en) 1999-01-21
CN1269902A (zh) 2000-10-11
SG70644A1 (en) 2000-02-22
US6430295B1 (en) 2002-08-06
KR100480404B1 (ko) 2005-04-06
HK1031421A1 (en) 2001-06-15
EP0995188A1 (en) 2000-04-26
TW386330B (en) 2000-04-01
JP2001509659A (ja) 2001-07-24
PL337971A1 (en) 2000-09-11
KR20010021720A (ko) 2001-03-15
JP4082649B2 (ja) 2008-04-30
AU8364298A (en) 1999-02-08
EP0995188B1 (en) 2007-04-25
DE69837663D1 (de) 2007-06-06
MY120049A (en) 2005-08-30
EE200000008A (et) 2000-08-15
BR9810695A (pt) 2000-09-05

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