Circuit for changing a frequency

Details Circuit for changing a frequency Circuit for changing a frequency

2006-07-13

2009-10-06

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S120000, C327S116000

Reexamination Certificate

active

07598782

ABSTRACT:
A circuit is provided for multiplying a frequency by a cascade formed of a transadmittance having a transfer characteristic and a transimpedance having a transfer characteristic. The transadmittance includes two terminals for a signal of a first frequency and the transimpedance includes two terminals for a signal of a second frequency. A transfer characteristic of the transimpedance is steeper than a transfer characteristic of the transadmittance, and a modulation region of the transadmittance is larger than a modulation region of the transimpedance.

REFERENCES:
patent: 4019118 (1977-04-01), Harwood
patent: 4734591 (1988-03-01), Ichitsubo
patent: 5396659 (1995-03-01), Kimura
patent: 6023363 (2000-02-01), Harada et al.
patent: 6765377 (2004-07-01), Lu
patent: 56-162505 (1981-12-01), None
patent: 57-184306 (1982-11-01), None
Reinhard Reimann et al., “Bipolar High-Gain Limiting Amplifier IC for Optical-Fiber Receivers Operating up to 4 Gbit/s,” IEEE Journal of Solid-State Circuits, vol. SC-22, No. 4, Aug. 1987.
M. Siccardi et al., “A New Design Philosophy for High Phase Stability Odd Order Frequency Multipliers,” 1996 IEEE International Frequency Control Symposium, No. 0-7803-3309-8/96.

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