Signal processing circuit
US8724407B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/2227
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To provide a signal processing circuit including a nonvolatile memory circuit with a novel structure, the signal processing circuit includes an arithmetic portion, a memory, and a control portion for controlling the arithmetic portion and the memory. The control portion includes a set of a volatile memory circuit and a first nonvolatile memory circuit for storing data held in the volatile memory circuit, the memory includes a plurality of second nonvolatile memory circuits, and the first nonvolatile memory circuit and the second nonvolatile memory circuit each include a transistor having a channel in an oxide semiconductor layer and a capacitor in which one of a pair of electrodes is electrically connected to a node which is set in a floating state when the transistor is turned off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.