Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Frequency or repetition rate conversion or control
Reexamination Certificate
2005-12-08
2009-08-25
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Frequency or repetition rate conversion or control
C327S119000, C327S116000
Reexamination Certificate
active
07579884
ABSTRACT:
A frequency doubler circuit includes first and second arrangements of switches connected to the positive and negative inputs of a comparator, respectively, and arranged in such a way that first and third voltages during the first phase of a reference clock signal and second and fourth voltages during a second phase opposite to the first phase are applied to the positive and negative inputs, where the first and second voltages and the third and fourth voltages are shifted with respect to each other at a half-period of the reference clock signal and the ratio between slopes of the voltages is fixed with respect to a selected current.
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PCT/IB306 Form—Commissariat A. L'Energie Atomique—in French, Jun. 1, 2007.
PCT International Preliminary Examination Report in French, Oct. 13, 2006.
Nagaraj K et al., “A Frequency Doubler For Rectangular Inputs”, International Journal of Electronics, pp. 433-436, Mar. 1984, XP002084165.
PCT International Preliminary Report on Patentability, English translation Oct. 13, 2006.
Brinks Hofer Gilson & Lione
Commissariat a l''Energie Atomique
Donovan Lincoln
Nguyen Hai L
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