Title:
デジタル信号生成方法、この方法を用いた装置、プログラム、および記録媒体
Document Type and Number:
Japanese Patent JP4549967
Kind Code:
B2
Abstract:
A method for generating a bandlimited digital signal, includes generating a sequence of digital samples of a waveform, such as a sawtooth, square, or pulse waveform. The waveform has a discontinuity with a phase within a particular sampling interval. The digital samples in the sequence of digital samples of the waveform around the discontinuity are summed with a set of digital samples of an alias reducing pulse, which is based on the phase and magnitude of the discontinuity. The alias reducing pulse has essentially no DC bias, such as a pulse that is substantially odd symmetric relative to the phase of the discontinuity. The process is used in synthesis of analog synthesizer waveforms, hard sync and other waveform synthesis procedures.
Inventors:
Larry, B. Andrew
Bright, Tea. Charles
Bright, Tea. Charles
Application Number:
JP2005375217A
Publication Date:
September 22, 2010
Filing Date:
December 27, 2005
Export Citation:
Assignee:
Korg Co., Ltd.
International Classes:
H03K4/02; G10H7/08
Foreign References:
| US4517520 | ||||
| US4962344 | ||||
| US5872531 | ||||
| US5977469 | ||||
| US6806413 | ||||
| US20040174284 | ||||
| US20080068244 |
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Taku Kusano
Yukio Nakamura
Taku Kusano