Synthesizer structures and methods that reduce spurious signals

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synthesizer

Reexamination Certificate

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C327S107000, C708S276000

Reexamination Certificate

active

07026846

ABSTRACT:
Synthesizers are provided to generate synthesizer signals in response to primary digital signal representations that are created by a signal generator. In an important feature, the synthesizers further include a signal corrector that inserts correction digital signal representations to at least partially cancel a corresponding spurious component in the primary digital signal representation and thereby provide synthesizer signals with reduced spurious content.

REFERENCES:
patent: 4901265 (1990-02-01), Kerr et al.
patent: 4975699 (1990-12-01), Frey
patent: 5521533 (1996-05-01), Swanke
patent: 5554987 (1996-09-01), Ooga
patent: 5598440 (1997-01-01), Domagala
patent: 5821816 (1998-10-01), Patterson
patent: 5878335 (1999-03-01), Kushner
patent: 6094101 (2000-07-01), Sander et al.
patent: 6333649 (2001-12-01), Dick et al.
patent: 6522176 (2003-02-01), Davis
patent: 6608049 (2003-08-01), Woltering et al.
patent: 6670854 (2003-12-01), Takeda et al.
Vankka, Jouko, “A Direct Digital Synthesizer with a Tunable Error Feedback Structure”, IEEE Transactions on Communications, vol. 45, No. 4, Apr., 1997, pp. 416-420.
Jensen, Henrik, “A Low-Complexity Dynamic Element Matching DAC for Direct Digital Synthesis”, IEEE Transactions on Circuits and Systems, vol. 45, No. 1, Jan., 1998, pp. 13-27.

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