Title:
PCMデータをPWMデータへ効率的に変換する方法および回路
Document Type and Number:
Japanese Patent JP4189757
Kind Code:
B2
Abstract:
Method for converting a pulse coded digital signal (PCM, f(t)) into a pulse width modulated signal (PWM) in which the digital signal (PCM, f(t)) is multiplied by at least a first, second or greater order derivative of the initial signal. To achieve the conversion over sampling of the PCM signal is carried out with a necessary over-sampling factor. The invention also relates to a corresponding device for implementation of the inventive method.
Inventors:
Rukling Dieter
Arlutz Herbert
Fiart alter matias
Arlutz Herbert
Fiart alter matias
Application Number:
JP2004154373A
Publication Date:
December 03, 2008
Filing Date:
May 25, 2004
Export Citation:
Assignee:
MICRONAS GmbH
International Classes:
H03M3/02; G06F1/26; G11B20/10; H03F3/217; H03M1/06; H03M1/82; H03M5/08
Domestic Patent References:
| JP2000507759A | ||||
| JP11031971A |
Foreign References:
| US20030122692 | ||||
| WO2002025817A1 |
Other References:
J.M.Goldberg et.al.,New high accuracy pulse width modulation based digital-to-analogue convertor/power amplifier,IEE Proceeding,Circuits Devices System,IEEE,1994年 8月,Vol.141,No.4,pp.315-324
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio