Patents
US 11190219 B1: Decoder for irregular error correcting codes
- Granted
- 2021-11-30
- Filed
- 2020-06-30 application 16917870
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An error correcting code (ECC) decoder for a non-volatile memory device is configured to decode data stored by the non-volatile memory device using a parity check matrix with columns of different column weights. The ECC decoder is further configured to artificially slow processing of one or more of the columns of the parity check matrix in response to column weights for the one or more columns satisfying a threshold.
Source: PVGPATDIS, file of 2026-04-10 (ipg211130.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| WESTERN DIGITAL TECHNOLOGIES, INC. 4,838 patents | US company or organization | San Jose, CA | WESTERN DIGITAL TECHNOLOGIES INC. Federal lobbying client EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Ran Zamir | Ramat Gan, IL | 92 | PVGPATDIS, file of 2026-04-10 | |
| Dudy David Avraham | Nes Ziona, IL | 26 | PVGPATDIS, file of 2026-04-10 | |
| Eran Sharon | Rishon LeZion, IL | 325 | PVGPATDIS, file of 2026-04-10 | |
| Idan Alrod | Herzliya, IL | 228 | PVGPATDIS, file of 2026-04-10 | |
| Idan Goldenberg | Ramat HaSharon, IL | 20 | PVGPATDIS, file of 2026-04-10 | |
| Omer Fainzilber | Even Yehuda, IL | 40 | PVGPATDIS, file of 2026-04-10 | |
| Yuri Ryabinin | Beer Sheva, IL | 11 | PVGPATDIS, file of 2026-04-10 | |
| Yan Dumchin | Beer Sheva, IL | 13 | PVGPATDIS, file of 2026-04-10 | |
| Igal Mariasin | Beer Sheva, IL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Eran Banani | Meitar, IL | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H03M | Coding; decoding; code conversion in general | H03M13/3707 | PVGPATDIS, file of 2026-04-10 |
| G06F | Electric digital data processing | G06F11/1048 | 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 |
|---|---|---|---|---|---|
| 2024-08-23 | Security interest Security interest Patent collateral agreement | SANDISK TECHNOLOGIES, INC. signed 2024-08-20 | JPMORGAN CHASE BANK, N.A., AS THE AGENT CHICAGO, IL | 68762/494 | PASDL, file of 2026-10-15 |
| 2024-06-27 | Name change Change of name | SANDISK TECHNOLOGIES, INC. signed 2024-06-21 | SANDISK TECHNOLOGIES, INC. MILPITAS, CA | 67982/32 | PASDL, file of 2026-10-15 |
| 2024-05-29 | Assignment Assignment of assignor's interest | WESTERN DIGITAL TECHNOLOGIES, INC. signed 2024-05-03 | SANDISK TECHNOLOGIES, INC. MILPITAS, CA | 67567/682 | PASDL, file of 2026-10-15 |
| 2023-08-21 | Other Patent collateral agreement - ddtl loan agreement | WESTERN DIGITAL TECHNOLOGIES, INC. signed 2023-08-18 | JPMORGAN CHASE BANK, N.A. CHICAGO, IL | 67045/156 | PASDL, file of 2026-10-15 |
| 2023-08-21 | Other Patent collateral agreement - a&r loan agreement | WESTERN DIGITAL TECHNOLOGIES, INC. signed 2023-08-18 | JPMORGAN CHASE BANK, N.A. CHICAGO, IL | 64715/1 | PASDL, file of 2026-10-15 |
| 2022-02-08 | Release of security interest Release of security interest at reel 053926 frame 0446 | JPMORGAN CHASE BANK, N.A. signed 2022-02-03 | WESTERN DIGITAL TECHNOLOGIES, INC. IRVINE, CA | 58966/321 | PASDL, file of 2026-10-15 |
| 2020-09-29 | Security interest Security interest Security interest | WESTERN DIGITAL TECHNOLOGIES, INC. signed 2020-08-28 | JPMORGAN CHASE BANK, N.A., AS AGENT CHICAGO, IL | 53926/446 | PASDL, file of 2026-10-15 |
| 2020-09-11 | Assignment Assignment of assignor's interest | ALROD, IDAN signed 2020-06-29 AVRAHAM, DUDY signed 2020-06-29 BANANI, ERAN signed 2020-06-29 DUMCHIN, YAN signed 2020-06-29 FAINZILBER, OMER signed 2020-06-29 GOLDENBERG, IDAN signed 2020-06-29 MARIASIN, IGAL signed 2020-06-29 SHARON, ERAN signed 2020-06-29 ZAMIR, RAN signed 2020-06-29 RYABININ, YURI signed 2020-06-30 | WESTERN DIGITAL TECHNOLOGIES, INC. SAN JOSE, CA | 53750/55 | 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.