Black box with volatile memory caching

US10176650B1 · kind B1 · utility

Assignee

• Lyft, Inc. · US

Inventors

• George James Hansel · Redwood City, US
• Yi Lu · Suzhou, CN

Key dates

• Filing date: Apr 17, 2018
• Grant date: Jan 8, 2019
• Expiry date: Apr 17, 2038

Classification

• Technology area (CPC —): General

Abstract

In one embodiment, an apparatus includes a volatile memory module configured to store vehicle data; a non-volatile memory module coupled to the volatile memory module; and an energy-storage module configured to provide power to the volatile memory module and the non-volatile memory module during a data transfer between the volatile memory module and the non-volatile memory module. The energy is provided to the non-volatile memory module for writing the vehicle data to non-volatile memory. The apparatus further includes a collision-detector module configured to identify a collision event of the vehicle; and a controller coupled to the energy-storage module and the collision-detector module. The controller is configured to initiate a transfer of the vehicle data stored in the volatile memory module to the non-volatile memory module in response to receiving an indication from the collision-detector module that a collision has occurred.