Invention Grant
- Patent Title: Use of a logical-to-logical translation map and a logical-to-physical translation map to access a data storage device
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Application No.: US16686697Application Date: 2019-11-18
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Publication No.: US10942849B2Publication Date: 2021-03-09
- Inventor: Christopher John Sabol , Slava Pestov , Thomas Wyatt Craig , Manuel Enrique Benitez , Monish Shah , Daniel Ari Ehrenberg
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Brake Hughes Bellermann LLP
- Main IPC: G06F12/02
- IPC: G06F12/02

Abstract:
An apparatus includes a host device and a data storage device. The host device is configured to store a first translation map for converting a logical sector to a logical erase unit. The data storage device includes a plurality of flash memory devices and a memory controller operationally coupled with the flash memory devices, each of the flash memory devices being arranged into a plurality of erase units, each of the erase units having a plurality of pages for storing data. The memory controller is configured to receive a second translation map from the host device, the second translation map for converting a logical erase unit to a physical erase unit within the flash memory devices, and store the second translation map in a memory module on the data storage device.
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