Title:
テレビオーディオ信号を処理するための設定可能なフィルタ
Document Type and Number:
Japanese Patent JP5032976
Kind Code:
B2
Abstract:
Television audio signal encoders include a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoders also include a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal and/or the sum signals. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission. Decoders with the matrix are also disclosed.
Inventors:
Matthew Barnhill
Dar, Roger
Dar, Roger
Application Number:
JP2007505181A
Publication Date:
September 26, 2012
Filing Date:
March 24, 2005
Export Citation:
Assignee:
That Corporation
International Classes:
H04H20/48; H03H17/00; H03H17/04; H04H40/45; H04N5/60; H04R5/00; H04S3/02
Domestic Patent References:
| JP2000513888A |
Foreign References:
| US6259482 | ||||
| US20030161477 |
Other References:
ウィチャイブンクムクラオ,三木信弘,帯域消去フィルタのFPGAによる実現,電子情報通信学会論文誌 情報・システムII-パターン処理,2000年11月25日,第J83-D-II巻,第11号,p.2171-2179
Attorney, Agent or Firm:
Patent business corporation Tsukuni
Hajime Tsukuni
Yasuo Yanagibashi
Satoko Ito
Yoshinori Ikukawa
Takashi Ishioka
Akio Shibata
Hajime Tsukuni
Yasuo Yanagibashi
Satoko Ito
Yoshinori Ikukawa
Takashi Ishioka
Akio Shibata