Title:
デルタシグマ変調器を使用した、改良されたアナログ信号の生成
Document Type and Number:
Japanese Patent JP4451821
Kind Code:
B2
Abstract:
The present invention relates to a method and a system for generating an analog signal x(t) based on samples x[k] representing said analog signal, said method comprising the step of feeding said samples x[k] into a delta-sigma modulator (552 689), said delta-sigma modulator (552; 689) outputting a sequence of bits q[k], said method being characterized by the step of a non-linear time-discrete function into a feedback loop between a quantizer element (509; 691) and a delta element (506; 606) of said delta-sigma modulator (552; 689), wherein arguments of said non-linear time-discrete function comprise a current bit and at least one bit previous to said current bit.
Inventors:
Johen Rivoire
Application Number:
JP2005219316A
Publication Date:
April 14, 2010
Filing Date:
July 28, 2005
Export Citation:
Assignee:
Verigy(Singapore)Pte.Ltd.
International Classes:
H03M3/02
Domestic Patent References:
| JP6508484A |
Foreign References:
| WO2004032333A1 | ||||
| US6150969 |
Attorney, Agent or Firm:
Patent business corporation Okada Fusimi Hirano