Frequency expansion for synthesizer

Details Frequency expansion for synthesizer Frequency expansion for synthesizer

2004-04-27

2009-12-08

Briney, III, Walter F (Department: 2614)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C381S061000

Reexamination Certificate

active

07630780

ABSTRACT:
A method is provided for generating synthetic audio signals with a synthesizer by generating a synthesizer output signal with a low sampling rate of the synthesizer. Because of the low sampling rate, missing high-frequency components of the synthesizer output signal are generated by adding a high-frequency signal. An amplitude-modulated high-frequency signal is preferred, and the amplitude-modulated signal S and synthesizer output signal are converted to a higher sampling rate.

REFERENCES:
patent: 4700390 (1987-10-01), Machida
patent: 5018429 (1991-05-01), Yamaya et al.
patent: 5455888 (1995-10-01), Iyengar et al.
patent: 5982305 (1999-11-01), Taylor
patent: 2003/0044024 (2003-03-01), Aarts et al.
patent: 2003/0187663 (2003-10-01), Truman et al.
patent: 2005/0117756 (2005-06-01), Shigyo et al.
patent: 4026476 (1992-03-01), None
patent: 3853563 (1995-08-01), None
patent: 10138225 (2003-02-01), None
patent: 0930704 (1999-07-01), None
patent: 1 047 045 (2000-10-01), None
patent: 9034496 (1997-02-01), None
patent: WO 01/39370 (2001-05-01), None
patent: WO 01/61687 (2001-08-01), None
Shigyo et al., WO 03/019533 A1 (filed Aug. 24, 2001) (published Mar. 6, 2003).
Patent Abstracts of Japan 06012079 A—Jan. 21, 1994.
Patent Abstracts of Japan 2001265350 A—Sep. 28, 2001.
XP-000854539—Schnitzler, “A 13.0 KBIT/S Wideband Speech Codec Based on SB-ACELP”, pp. 157-160.
Zolzer, Digitale Audiosignalverarbeitung/von Udo Zolzer, Stuttgart, Teubner 1996 ISBN 3-519-06180-5 pp. 230-232.

Affiliated with

Also associated with

Rating

Frequency expansion for synthesizer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency expansion for synthesizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency expansion for synthesizer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4148461