Patents
US 10389389 B2: Method and data storage device using convolutional low-density parity-check coding with a long page write and a short page read granularity
- Granted
- 2019-08-20
- Filed
- 2017-06-08 application 15617059
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
In an illustrative example, an apparatus includes a controller and a memory that is configured to store a codeword of a convolutional low-density parity-check (CLDPC) code. The codeword has a first size and includes multiple portions that are independently decodable and that have a second size. The controller includes a CLDPC encoder configured to encode the codeword and a CLDPC decoder configured to decode the codeword or a portion of the codeword.
Source: PVGPATDIS, file of 2026-04-10 (ipg190820.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 |
|---|---|---|---|---|
| Idan Goldenberg | Ramat HaSharon, IL | 20 | PVGPATDIS, file of 2026-04-10 | |
| Stella Achtenberg | Netanya, IL | 37 | PVGPATDIS, file of 2026-04-10 | |
| Alexander Bazarsky | Holon, IL | 193 | PVGPATDIS, file of 2026-04-10 | |
| Eran Sharon | Rishon LeZion, IL | 325 | PVGPATDIS, file of 2026-04-10 | |
| Karin Inbar | Ramat HaSharon, IL | 44 | PVGPATDIS, file of 2026-04-10 | |
| Michael Ionin | Rehovot, IL | 17 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H03M | Coding; decoding; code conversion in general | H03M13/616 | PVGPATDIS, file of 2026-04-10 |
| G06F | Electric digital data processing | G06F11/1012 | 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 |
|---|---|---|---|---|---|
| 2025-04-25 | Release of security interest Partial release of security interests | JPMORGAN CHASE BANK, N.A., AS AGENT signed 2025-04-24 | SANDISK TECHNOLOGIES, INC. MILPITAS, CA | 71382/1 | PASDL, file of 2026-10-15 |
| 2025-04-25 | Security interest Security interest Security agreement | SANDISK TECHNOLOGIES, INC. signed 2025-04-24 | JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT CHICAGO, IL | 71050/1 | PASDL, file of 2026-10-15 |
| 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 052915 frame 0566 | JPMORGAN CHASE BANK, N.A. signed 2022-02-03 | WESTERN DIGITAL TECHNOLOGIES, INC. IRVINE, CA | 59127/1 | PASDL, file of 2026-10-15 |
| 2020-02-06 | Security interest Security interest Security interest | WESTERN DIGITAL TECHNOLOGIES, INC. signed 2020-01-13 | JPMORGAN CHASE BANK, N.A., AS AGENT CHICAGO, IL | 52915/566 | PASDL, file of 2026-10-15 |
| 2017-06-08 | Assignment Assignment of assignor's interest | ACHTENBERG, STELLA signed 2014-06-04 BAZARSKY, ALEXANDER signed 2017-06-04 GOLDENBERG, IDAN signed 2017-06-04 IONIN, MICHAEL signed 2017-06-04 SHARON, ERAN signed 2017-06-04 INBAR, KARIN signed 2017-06-06 | WESTERN DIGITAL TECHNOLOGIES, INC. SAN JOSE, CA | 42644/914 | 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.