Method and device for frequency division and demultiplexing

Details Method and device for frequency division and demultiplexing Method and device for frequency division and demultiplexing

2007-05-08

2007-05-08

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S117000, C327S047000

Reexamination Certificate

active

10953241

ABSTRACT:
A device and method is described for the frequency division of an input clock signal, in which from the input clock signal at least two output clock signals are generated, with an output pulse frequency equal to an input pulse frequency divided by a given factor, whereby with a phase detector a phase difference is measured between the at least two output signals and each of the at least two output clock signals is either inverted or not inverted, as a function of the phase difference determined. A method of this type is particularly suitable for the demultiplexing of an input data signal, and can also be designed to be multi-step.

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Andreas Thiede et al., “Mixed Signal Integrated Circuits Based on GaAs HEMT's”, IEEE Transactions of Very Large Scale Integration (VLSI) Systems, vol. 6, No. 1, Mar. 1998, pp. 6-17.
Manfred Lang et al., “20-40 Gb/s 0.2-μm GaAs HEMT Chip Set for Optical Data Receiver”, IEEE Journal of Solid-State Circuits, vol. 32, No. 9, Sep. 1997, pp. 1384-1393.

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