Indoor communication system for a vehicular cabin

Details Indoor communication system for a vehicular cabin Indoor communication system for a vehicular cabin

2005-04-29

2011-12-20

Faulk, Devona (Department: 2614)

Electrical audio signal processing systems and devices

Including frequency control

Having automatic equalizer circuit

C381S058000, C381S059000, C381S086000, C381S096000, C381S083000, C381S093000, C381S028000, C381S104000, C381S108000

Reexamination Certificate

active

08081776

ABSTRACT:
A system automatically determines an equalizing filter characteristic for a communication system within a vehicle. The communication system includes a loudspeaker and a microphone or microphone array. The system transmits a predetermined test signal through the loudspeaker and receive the test signal through the microphone or microphone array. Based on the predetermined test signal and the received test signal, a transfer function is developed. The equalizing filter characteristic is then developed from the transfer function.

REFERENCES:
patent: 4628530 (1986-12-01), Op De Beek et al.
patent: 4739513 (1988-04-01), Kunugi et al.
patent: 4965833 (1990-10-01), McGregor et al.
patent: 5386478 (1995-01-01), Plunkett
patent: 5768398 (1998-06-01), Janse et al.
patent: 5796819 (1998-08-01), Romesburg
patent: 6408079 (2002-06-01), Katayama et al.
patent: 6496581 (2002-12-01), Finn et al.
patent: 6525967 (2003-02-01), Briner
patent: 6665411 (2003-12-01), Steenhagen
patent: 6674865 (2004-01-01), Venkatesh et al.
patent: 6980663 (2005-12-01), Linhard
patent: 7035398 (2006-04-01), Matsuo
patent: 7158643 (2007-01-01), Lavoie et al.
patent: 7313518 (2007-12-01), Scalart et al.
patent: 2004/0114771 (2004-06-01), Vaughan et al.
patent: 2005/0152562 (2005-07-01), Holmi et al.
patent: 0 898 364 (1999-02-01), None
patent: 2001-215130 (1989-08-01), None
patent: 2009-247787 (1997-09-01), None
patent: 2000-316199 (2000-11-01), None
patent: 2002-328682 (2002-11-01), None
patent: 2007-240933 (2007-09-01), None

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