Title:
デジタルマイクロフォン
Document Type and Number:
Japanese Patent JP2007517441
Kind Code:
A
Abstract:
A channel filter shapes a transmission's high-frequency spectrum, which has no attenuation in a first range, i.e. in a useful band width of approximately 100 to 300 kilohertz (kHz), but in a range outside the first range it has blocking attenuation of particularly more than 60 decibels (dB) or more than 80 dB. An independent claim is also included for a device for transmitting digitalized audio data.
Inventors:
Gerrit Bouet
Axel Haupt
Frank Plato
Jan Vertelmann
Axel Haupt
Frank Plato
Jan Vertelmann
Application Number:
JP2006546108A
Publication Date:
June 28, 2007
Filing Date:
December 30, 2004
Export Citation:
Assignee:
Sennheiser electronic GmbH & Co. KG
International Classes:
H04R3/00; H04R1/00; H04B7/06; H04H60/04; H04H7/00
Domestic Patent References:
| JP2002135156A | 2002-05-10 | |||
| JP2003298481A | 2003-10-17 | |||
| JP2003518812A | 2003-06-10 | |||
| JPH1188748A | 1999-03-30 | |||
| JPH08265233A | 1996-10-11 | |||
| JP2002171191A | 2002-06-14 | |||
| JP2002176380A | 2002-06-21 |
Foreign References:
| WO2002043259A2 | 2002-05-30 |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Hiroshi Kano
Masahiro Ishino
Kawabata Junichi
Mitsuo Tanaka
Hiroshi Kano
Masahiro Ishino
Kawabata Junichi