Patent · US Active

Time encoding and decoding of a signal

US7573956B2 · kind B2 · utility

22Cited by

25References

24Claims

0Family size

Assignee

The Trustees of Columbia University in the City of New York · US

Inventors

Aurel A. Lazar · New York, US
Laszlo Toth · Budapest, HU

Key dates

Filing date	Feb 2, 2005
Grant date	Aug 11, 2009
Priority date	—
Expiry date	Mar 10, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/432
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Analog signals can be fully encoded as an asynchronous time sequence generated by a time encoding machine (TEM). With knowledge of the parameters of the time encoding machine, the asynchronous time sequence can be decoded using a non-linear time decoding machine. In one embodiment, the non-linear time decoding machine generates a set of weighted Dirac delta functions centered in the intervals of the asynchronous time sequence of the time encoding machine output. The weighting of each of the delta functions is determined by the parameters of the TEM as well as the values of the time sequence. The generation of the series of delta functions is a nonlinear operation (500, 510, 520). The input signal can be recovered from the series of weighted delta functions by (530) applying this series through an impulse response filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.