Title:
IMPULSE-RESPONSIVE MEASUREMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/011356
Kind Code:
A1
Abstract:
[PROBLEMS] An impulse-responsive measurement method, device, system and program, and a recording medium, which can improve a measurement precision without lowering an SN ratio all over the bandwidth of a measuring signal from low- to high-frequency ranges. [MEANS FOR SOLVING PROBLEMS] A signal generation unit (21) of an impulse-responsive measurement device (10-1) generates a W-TSP signal (x(t)) having the characteristics of a TSP signal and a Log-TSP signal. A D/A conversion unit (22) converts the digital signal (x(t)) into the analog signal (x(t)), and outputs the converted signal to a head-phone (2) or a speaker (5). An A/D conversion unit (23) inputs an analog signal (y(t)) received by a microphone (3) or a microphone (6), and converts the inputted signal into the digital signal (y(t)). An inverse signal generation unit (24) generates an inverse W-TSP signal (x-1(t)). A convoluting operation unit (25) convolutes the signal (y(t)) and the inverse W-TSP signal (x-1(t)) thereby to calculate an impulse response (g(t)).
Inventors:
MORISE MASANORI (JP)
IRINO TOSHIO (JP)
KAWAHARA HIDEKI (JP)
BANNO HIDEKI (JP)
IRINO TOSHIO (JP)
KAWAHARA HIDEKI (JP)
BANNO HIDEKI (JP)
Application Number:
PCT/JP2005/012812
Publication Date:
February 02, 2006
Filing Date:
July 12, 2005
Export Citation:
Assignee:
WAKAYAMA UNIVERSITY (JP)
MORISE MASANORI (JP)
IRINO TOSHIO (JP)
KAWAHARA HIDEKI (JP)
BANNO HIDEKI (JP)
MORISE MASANORI (JP)
IRINO TOSHIO (JP)
KAWAHARA HIDEKI (JP)
BANNO HIDEKI (JP)
International Classes:
G01H17/00; G01H3/00; G10K15/00; (IPC1-7): G01H17/00; G01H3/00; G10K15/00
Other References:
FUJIMOTO T.: "Teiiki Band deno SNhi Kaizen o Mokuteki toshita TSP Shingo ni Kansuru Kento.", THE ACOUSTICAL SOCIETY OF JAPAN (ASJ) KENKYU HAPPYOKAI KOEN RONBUNSHU, SHUKI 1., 29 September 1999 (1999-09-29), pages 433 - 434, XP002999518
SATOH F.: "Shitsunai Onkyo Impulse Oto no Sokuteki Gijutsu.", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN SHI., vol. 58, no. 10, 1 October 2002 (2002-10-01), pages 669 - 676, XP002999519
MORISE M. ET AL: "An Soon ni Ganken na Impulse Oto Sokuteiyo Shingo no Sekkei Shuho.", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS GIJUTSU K NKYU HOKOKU., vol. 104, no. 247, 13 August 2004 (2004-08-13), pages 37 - 42, XP002998263
MORISE M. ET AL: "An Soon ni Motoduita Impulse Oto Sokuteiyo Shingo no Sekkei Shuho.", THE ACOUSTICAL SOCIETY OF JAPAN (ASJ) KENKYU HAPPYOKAI KOEN RONBUNSHU, SHUKI 1., 21 September 2004 (2004-09-21), pages 593 - 594, XP002999520
See also references of EP 1772713A4
SATOH F.: "Shitsunai Onkyo Impulse Oto no Sokuteki Gijutsu.", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN SHI., vol. 58, no. 10, 1 October 2002 (2002-10-01), pages 669 - 676, XP002999519
MORISE M. ET AL: "An Soon ni Ganken na Impulse Oto Sokuteiyo Shingo no Sekkei Shuho.", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS GIJUTSU K NKYU HOKOKU., vol. 104, no. 247, 13 August 2004 (2004-08-13), pages 37 - 42, XP002998263
MORISE M. ET AL: "An Soon ni Motoduita Impulse Oto Sokuteiyo Shingo no Sekkei Shuho.", THE ACOUSTICAL SOCIETY OF JAPAN (ASJ) KENKYU HAPPYOKAI KOEN RONBUNSHU, SHUKI 1., 21 September 2004 (2004-09-21), pages 593 - 594, XP002999520
See also references of EP 1772713A4
Attorney, Agent or Firm:
Sugimura, Kosaku (2-4 Kasumigaseki 3-chome, Chiy, oda-k, Tokyo 13, JP)
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