Integrated compact eye pattern analyzer for next generation...

Details Integrated compact eye pattern analyzer for next generation... Integrated compact eye pattern analyzer for next generation...

2011-06-07

2011-06-07

Tran, Khai (Department: 2611)

Pulse or digital communications

Testing

Phase error or phase jitter

C398S115000

Reexamination Certificate

active

07957462

ABSTRACT:
A portable hand-held battery powered eye pattern analyzer is provided that can analyze signal quality of a high speed digital communication network. The system is 10 times smaller in volume and 4 times lighter than the bench-top equivalent instruments. The system includes a housing containing a display, keypad, power supply, battery pack, and RF sampler board along with connections for electrical inputs, optical inputs, clock signal inputs, and clock recovery signal inputs. The sampler circuit board can support connections, such as a USB plug for attachment to a personal computer. The RF sampler board contains the following elements: (1) A dual sampler for two-channel electrical inputs. (2) An Optical-to-Electrical O/E conversion module. (3) A clock recovery unit (CRU) module to recover the clock from the electrical or optical pulse pattern signal. (4) A trigger circuit that accepts an input clock and uses that clock to trigger the sampling of the data signal. (5) A PRBS generator that could be used as stimulus for testing high speed devices, and (6) A controller such as an FPGA that processes the sampled signals and provides statistical analysis along with eye patterns to a display as controlled using the keyboard.

REFERENCES:
patent: 2004/0186673 (2004-09-01), Agoston et al.
patent: 2008/0170859 (2008-07-01), Reyna et al.
patent: 2009/0219395 (2009-09-01), Baker et al.

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