FAULT-TOLERANT VARIABLE REGION REPAVING DURING FIRMWARE OVER THE AIR UPDATE
Variables utilized in device firmware that provides various boot and runtime services are repaved in a fault-tolerant manner within a secure store in a durable, non-volatile device memory during an FOTA update process. A spare region in the secure store is utilized to temporarily hold a back-up of a...
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| creator | Mahood Adam Matthew Annapureddy Thirupathaiah Justin Ajit Mehendale Bhushan |
| description | Variables utilized in device firmware that provides various boot and runtime services are repaved in a fault-tolerant manner within a secure store in a durable, non-volatile device memory during an FOTA update process. A spare region in the secure store is utilized to temporarily hold a back-up of a primary region in which the firmware variables are written. Using a transaction-based fault-tolerant write (FTW) process, the variables in the primary region can be repaved with variables contained in a firmware update payload that is delivered from a remote service. In the event of a fault in the variable region repaving process, either the primary or spare region will remain valid so that firmware in a known good state can be utilized to enable the device to boot successfully and the variable region repaving in the FOTA update process may be restarted. |
| format | Patent |
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A spare region in the secure store is utilized to temporarily hold a back-up of a primary region in which the firmware variables are written. Using a transaction-based fault-tolerant write (FTW) process, the variables in the primary region can be repaved with variables contained in a firmware update payload that is delivered from a remote service. 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In the event of a fault in the variable region repaving process, either the primary or spare region will remain valid so that firmware in a known good state can be utilized to enable the device to boot successfully and the variable region repaving in the FOTA update process may be restarted.</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPB2cwz1CdEN8fdxDXL0C1EIcwzydHTycVUIcnX39PcDUgGOYZ5-7gouoUEgys0zyDfcMchVwT_MNUghxMNVwdEzSCE0wMUxxJWHgTUtMac4lRdKczMou7mGOHvophbkx6cWFyQmp-allsSHBhsZGFoYGJiYGpg5GhoTpwoATOwulA</recordid><startdate>20180104</startdate><enddate>20180104</enddate><creator>Mahood Adam Matthew</creator><creator>Annapureddy Thirupathaiah</creator><creator>Justin Ajit</creator><creator>Mehendale Bhushan</creator><scope>EVB</scope></search><sort><creationdate>20180104</creationdate><title>FAULT-TOLERANT VARIABLE REGION REPAVING DURING FIRMWARE OVER THE AIR UPDATE</title><author>Mahood Adam Matthew ; Annapureddy Thirupathaiah ; Justin Ajit ; Mehendale Bhushan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2018004506A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2018</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>Mahood Adam Matthew</creatorcontrib><creatorcontrib>Annapureddy Thirupathaiah</creatorcontrib><creatorcontrib>Justin Ajit</creatorcontrib><creatorcontrib>Mehendale Bhushan</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Mahood Adam Matthew</au><au>Annapureddy Thirupathaiah</au><au>Justin Ajit</au><au>Mehendale Bhushan</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FAULT-TOLERANT VARIABLE REGION REPAVING DURING FIRMWARE OVER THE AIR UPDATE</title><date>2018-01-04</date><risdate>2018</risdate><abstract>Variables utilized in device firmware that provides various boot and runtime services are repaved in a fault-tolerant manner within a secure store in a durable, non-volatile device memory during an FOTA update process. 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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | FAULT-TOLERANT VARIABLE REGION REPAVING DURING FIRMWARE OVER THE AIR UPDATE |
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