Analog computation

Patent metadata

Field	Value
Publication number	US-9218318-B2
Application number	US-201213482112-A
Country	US
Kind code	B2
Filing date	May 29, 2012
Priority date	Feb 18, 2009
Publication date	Dec 22, 2015
Grant date	Dec 22, 2015

Abstract

Some general aspects of the invention relate to a circuit and to a method for analog computation, for example, using switched capacitor integrated circuits. In some examples, a circuit includes a first group of capacitors and a second group of capacitors that may store charges during circuit operation. The first and/or the second group of capacitors may include multiple disjoint subsets of capacitors. An input circuit is provided for receiving a set of input signals and for inducing a charge on each of some or all capacitors in the first group of capacitors according to a corresponding input signal. Switches, for example, transistors controlled by a sequence of clock signals, are used to couple different sets of capacitors. Different configurations of the switches are used to form different sets of the capacitors among which charge can redistribute.

First claim

What is claimed is:

1. A signal processing device comprising a first discrete time analog signal filter section, said first filter section comprising:
an input circuit for accepting a time series of input signal values;
an output circuit for providing a time series of output signal values;
a first analog signal storage section comprising a plurality of capacitors;
switching circuit elements configurable to controllably interconnect the capacitors;
control logic for control…

Assignees

• Nestler Eric
• Zlatkovic Vladimir
• Analog Devices Inc

Inventors

• Nestler Eric
• Zlatkovic Vladimir

Classifications

• G06F17/14 Primary

  Physics · mapped topic

• G01R31/64

  Physics · mapped topic

• G01R27/2605

  Physics · mapped topic

• G01R31/028

  Physics · mapped topic

• G01D5/24

  Physics · mapped topic