INDOOR COMMUNICATION SYSTEM FOR CABIN FOR VEHICLE

Title:

INDOOR COMMUNICATION SYSTEM FOR CABIN FOR VEHICLE

Document Type and Number:

Japanese Patent JP2005318636

Kind Code:

A

Abstract:

To provide a method for automatically determining equalizing filter characteristics for an indoor communication system of a cabin for vehicle.

An indoor communication system includes at least one loudspeaker and at least one microphone and comprises the steps of: generating a test signal to be set by loudspeakers, in particular, one loudspeaker, of the indoor communication system; receiving the test signal by a microphone, in particular, one microphone, of the indoor communication system to obtain a received test signal: automatically determining a transfer function in the frequency domain on the basis of the test signal and the received test signal; and automatically determining an equalizing filter characteristic on the basis of the transfer function.

Inventors:

HAULICK TIM
SCHMIDT GERHARD UWE

Application Number:

JP2005133496A

Publication Date:

November 10, 2005

Filing Date:

April 28, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HARMAN BECKER AUTOMOTIVE SYS

International Classes:

H04R1/40; G10K11/178; G10K15/00; H03G5/00; H03G5/16; H03H21/00; H04R3/00; H04R3/04; H04R5/02; H04R27/00; H04R29/00; (IPC1-7): H04R1/40; G10K15/00; H03G5/16; H04R3/00; H04R3/04

Domestic Patent References:

JPH01133454A	1989-05-25
JPH07240993A	1995-09-12
JP2000515345A	2000-11-14
JP2003060530A	2003-02-28
JP2001095083A	2001-04-06
JPH09247787A	1997-09-19
JP2000316199A	2000-11-14
JP2002328682A	2002-11-15
JPH01215130A	1989-08-29

Attorney, Agent or Firm:

Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita

Previous Patent: METHOD FOR AVOIDING AND SOLVING COLLISION OF TIME SLOT RESERVATION IN WIRELESS NETWORK AND SYSTEM

Next Patent: DIGITAL PHOTOGRAPHIC PRINTER AND DIGITAL PHOTOGRAPHIC PRINT GENERATION METHOD