Title:
PWM信号によって生成される可変アナログ信号の生成方法、及び該信号を生成するシステム
Document Type and Number:
Japanese Patent JP4980989
Kind Code:
B2
Abstract:
The present invention relates to a generation method of a variation form of an analogue signal generated by a PWM signal whose cyclic ratio and period are programmable. A signal can thus be generated whose evolution is linear over time. A succession of generation steps of a PWM signal during which different period and cyclic ratio values are applied, as well as pairs have different periods with the same cyclic ratio, thus enabling the analogue signal to be varied with great precision. According to an improvement, each generation step of a new PWM signal with different period and cyclic ratio values is applied over time slots of equal time. The present invention also relates to a generation system of a variable analogue signal implementing the method.
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Inventors:
Philip Mace
Xavier Giton
Philip Benezet
Xavier Giton
Philip Benezet
Application Number:
JP2008159935A
Publication Date:
July 18, 2012
Filing Date:
June 19, 2008
Export Citation:
Assignee:
Thomson Licensing
International Classes:
H03M1/82; H03K7/08
Domestic Patent References:
| JP2001102925A | ||||
| JP2003249854A | ||||
| JP3220919A |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito