Patents
US 8780620 B2: Information representation and coding for nonvolatile memories
- Granted
- 2014-07-15
- Filed
- 2011-09-20 application 13237897
- Type
- Utility · 60 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A memory device having a plurality of cells, each of which stores a value, where the values of the cells are mapped to discrete levels and the discrete levels represent data, is programmed by determining a maximum number of cell levels in the memory device, and determining the set of values that are associated with each of the cell levels. The maximum number of cell levels for the memory device is determined by an adaptive programming system connected to the memory device, based on a plurality of cell values attained by at least one cell of the memory device, in response to voltage applied by the adaptive programming system to the cells of the memory device. The adaptive programming system associates, for each of the cell levels, a different set of cell values of the plurality of cell values attained by the cells to which voltage is applied. This technique increases the number of cell levels that can be configured in a memory device as compared with conventional techniques, and increases the number of data values that can be programmed into the cells of a memory device.
Source: PVGPATDIS, file of 2026-04-10 (ipg140715.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Texas A&M University 14 patents | US company or organization | College Station, TX | TEXAS A & M UNIVERSITY Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| California Institute of Technology 2,588 patents | US company or organization | Pasadena, CA | CALIFORNIA INSTITUTE OF TECHNOLOGY State business registration EXACT high confidence: identical full name and state California Institute of Technology College or university EXACT high confidence: identical full name and state CALIFORNIA INSTITUTE OF TECHNOLOGY Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Anxiao Jiang | College Station, TX | 11 | PVGPATDIS, file of 2026-04-10 | |
| Bruck Jehoshua | Tustin, CA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Zhiying Wang | Pasadena, CA | 12 | PVGPATDIS, file of 2026-04-10 | |
| Hongchao Zhou | Pasadena, CA | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G11C | Static stores | G11C11/5678 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2012-05-16 | Government interest Confirmatory license | CALIFORNIA INSTITUTE OF TECHNOLOGY signed 2012-04-18 | NATIONAL SCIENCE FOUNDATION ARLINGTON, VA | 28216/398 | ECORSEXC, file of 2026-09-25 |
| 2012-01-10 | Assignment Assignment of assignor's interest | JIANG, ANXIAO signed 2011-10-19 | THE TEXAS A&M UNIVERSITY COLLEGE STATION, TX | 27506/655 | ECORSEXC, file of 2026-09-25 |
| 2012-01-10 | Assignment Assignment of assignor's interest | BRUCK, JEHOSHUA signed 2011-10-26 WANG, ZHIYING signed 2011-11-02 ZHOU, HONGCHAO signed 2011-12-05 | CALIFORNIA INSTITUTE OF TECHNOLOGY PASADENA, CA | 27506/295 | ECORSEXC, file of 2026-09-25 |
| 2011-12-29 | Government interest Confirmatory license | CALIFORNIA INSTITUTE OF TECHNOLOGY signed 2011-10-18 | NATIONAL SCIENCE FOUNDATION ARLINGTON, VA | 27463/941 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.