Oscillators – Ring oscillators
Reexamination Certificate
2008-05-27
2010-11-02
Kinkead, Arnold (Department: 2817)
Oscillators
Ring oscillators
C331S135000, C331S137000, C327S113000, C327S119000, C327S230000, C327S231000, C327S234000, C327S235000
Reexamination Certificate
active
07825741
ABSTRACT:
A method of generating an output signal from an input signal includes a step of generating a set of n signals, n being an integer greater than or equal to 3, by generating a signal for each integer i such that 0≦i≦(n−1), each signal within the set having the same frequency and approximately equal amplitude and a phase equal to (360
)i degrees. The method also includes a step of inputting each of the set of n signals to a gate terminal of a corresponding one of a set of n transistors. Each of the transistors has a source terminal electrically connected to a common voltage drain and each of the transistors has a drain terminal electrically connected to a coupling. The coupling is electrically connected to a common voltage source. The output signal at the coupling has a frequency equal to the frequency of the input signal multiplied by n.
REFERENCES:
patent: 6094103 (2000-07-01), Jeong et al.
patent: 6664824 (2003-12-01), Laws
patent: 6900699 (2005-05-01), Kim
patent: 2001/0005151 (2001-06-01), Suematsu et al.
patent: 2003/0128773 (2003-07-01), Cargill et al.
patent: 2004/0156418 (2004-08-01), Debord et al.
patent: 2007/0126500 (2007-06-01), Mattisson et al.
patent: 2008/0169859 (2008-07-01), Garcia et al.
B. Floyd et al., “A Silicon 60GHz Receiver and Transmitter Chipset for Broadband Communications,” IEEE International Solid-State Circuits Conference (ISSCC 2006), Session 10.3, Feb. 2006, pp. 649-658.
B. Floyd et al., “SiGe Bipolar Transceiver Circuits Operating at 60 GHz,” IEEE Journal of Solid-State Circuits, Jan. 2005, pp. 156-167, vol. 40, No. 1.
S. Verma et al., “A Multiply-by-3 Coupled-Ring Oscillator for Low-Power Frequency Synthesis,” IEEE Journal of Solid-State Circuits, Apr. 2004, pp. 709-713, vol. 39, No. 4.
Mishra Chinmaya
Reynolds Scott Kevin
Soyuer Mehmet
Dougherty Anne
International Business Machines - Corporation
Kinkead Arnold
Ryan & Mason & Lewis, LLP
Tan Richard
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