Title:
インパルス応答の抽出合成によるＳＲＣの装置及び方法
Document Type and Number:
Japanese Patent JP5774475
Kind Code:
B2
Abstract:
Provided are a device and a method for sampling frequency rate conversion (SRC), which is capable of high-speed, high-precision data conversion. When a discrete impulse response function ?(Pr,n) is extracted from an impulse response function ?(t,n), extremely high-speed, high-precision sampling frequency rate conversion is possible by considering the differential interpolation position (Pr) which is the specified parameter corresponding to the difference between the time corresponding to the n0-th value of an original data sequence Y(nT), namely, the discrete point (n0T), and the temporal interpolation position (m0Tb) which is set to correspond to the m0-th value of a new data sequence Y(mTb) which is closest to the discrete point (n0T); and considering the periods (T, Tb), namely, the frequencies (fs, fb); and synthesizing the data using this kind of discrete impulse response function ?(Pr,n).
Inventors:
Eiki Oshima
Application Number:
JP2011509371A
Publication Date:
September 09, 2015
Filing Date:
April 16, 2010
Export Citation:
Assignee:
United Works Co., Ltd.
Eire Co., Ltd.
Eire Co., Ltd.
International Classes:
H03H17/00; G10L19/00; H03H17/02; H03H17/06
Domestic Patent References:
| JPH04247732A | 1992-09-03 | |||
| JPH0495412A | 1992-03-27 | |||
| JP2005287032A | 2005-10-13 | |||
| JP2004529519A | 2004-09-24 |
Attorney, Agent or Firm:
Mitsuhiro Fukuda
Previous Patent: ＲＮＡへの選択的な５’ライゲーションによるタグの付加
Next Patent: OUTER WALL MOUNT CONSTRUCTION OF BUILDING WITH UNEVEN SETTLEMENT
Next Patent: OUTER WALL MOUNT CONSTRUCTION OF BUILDING WITH UNEVEN SETTLEMENT