Down-converter and up-converter for time-encoded signals

Details Down-converter and up-converter for time-encoded signals Down-converter and up-converter for time-encoded signals

2007-11-29

2011-10-18

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C375S211000, C455S344000

Reexamination Certificate

active

08040265

ABSTRACT:
The disclosed invention provides apparatus and methods that can convert frequencies of time-encoded signals. In one aspect, a down-converter circuit includes low-pass filters, a switch, a time encoder, and an output low-pass filter. In another aspect, an up-converter circuit includes an analog or digital input time encoder, low-pass filters, a switch, an output time encoder, and a time-encoded band-pass filter. In yet another aspect, a complete receiver system is provided. The receiver system can operate effectively with signals in the radio frequency range.

REFERENCES:
patent: 4189621 (1980-02-01), Scott
patent: 5479168 (1995-12-01), Johnson et al.
patent: 5640161 (1997-06-01), Johnson et al.
patent: 5808574 (1998-09-01), Johnson et al.
patent: 7324035 (2008-01-01), Harris et al.
patent: 7365796 (2008-04-01), Woodall
patent: 7724168 (2010-05-01), Cruz-Albrecht et al.

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