Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Reexamination Certificate
2011-06-14
2011-06-14
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
C327S173000, C327S174000
Reexamination Certificate
active
07961020
ABSTRACT:
A digital signal converter (CNV) converts a digital input signal (PCM) into a pulse width modulated signal (PWM), which is a binary signal that comprises pulses of varying width. The digital signal converter can operate in a signal mode and a transition mode. In the transition mode, the digital converter provides the pulse width modulated signal (PWM) by applying an anti-transient noise shaping function (NSH2) to a direct current modification signal (SC). In the signal mode, the digital signal converter provides the pulse width modulated signal by applying a signal noise shaping function (NSH1) to the digital input signal.
REFERENCES:
patent: 5559467 (1996-09-01), Smedley
patent: 6522278 (2003-02-01), Rhode et al.
patent: 6538590 (2003-03-01), Gaboriau et al.
patent: 2005/0099226 (2005-05-01), Risbo et al.
patent: 2006/0001467 (2006-01-01), Fujino et al.
patent: 2007/0279101 (2007-12-01), Onodera et al.
patent: 1-151316 (1989-06-01), None
patent: 5-244010 (1993-09-01), None
patent: 0054403 (2000-09-01), None
patent: 2005/104349 (2005-11-01), None
Nielsen K; “A Review and Comparison of Pulse Width Modulation (PWM) Methods for Analog and Digital Input Switching Power Amplifiers”. 102 AES Convention, Mar. 1997, Munich, Germany.
Nielsen K; “PEDEC—A Novel Pulse Referenced Control Method for High Quality Digital PWM Switching Power Amplification”. Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE, Fukuoka, Japan, May 17-22, 1998, New York, NY, USA, IEEE, US. vol. 1, pp. 200-207.
Biallais Arnaud A. P.
Dooper Lusten L. A. H.
Donovan Lincoln
NXP B.V.
Poos John W
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