公开(公告)号：US20230023587A1

公开(公告)日：2023-01-26

申请号：US17758277

申请日：2020-03-12

Applicant: Google LLC

Inventor： Olivier Jean Benoit ,  Prasad Modali ,  Vinoth Kumar Deivasigamani ,  Benjamin K. Dodge

IPC: H04W52/02 ,  G01S5/02 ,  H04W12/08

Abstract: If a secure element accesses a resource that is separate from the secure element, conducting a secure transaction can be inefficient in terms of power or time. Power usage is inefficient if the resource is never permitted to sleep, and transaction time is inefficient if the resource is permitted to sleep, and the user experiences a delay. To enable dual efficiency, a resource entity is permitted to be powered down. The resource entity is then powered up speculatively by an activation controller. The activation controller predicts an upcoming secure transaction based on sensor output, such as a position fix or a detected electromagnetic field. Based on monitored sensor output, the activation controller issues an activation signal to power up the secure element or the resource entity prior to initiation of the upcoming secure transaction. Thus, power can be conserved without introducing a transaction-processing latency.

公开(公告)号：US12232041B2

公开(公告)日：2025-02-18

申请号：US17758277

申请日：2020-03-12

Applicant: Google LLC

Inventor： Olivier Jean Benoit ,  Prasad Modali ,  Vinoth Kumar Deivasigamani ,  Benjamin K. Dodge

IPC: H04W52/02 ,  G01S5/02 ,  G06F1/3287 ,  G06F21/35 ,  G06F21/77 ,  G06K7/10 ,  H04B5/72 ,  H04L9/40 ,  H04W4/80 ,  H04W12/06 ,  H04W12/08 ,  H04W12/63 ,  H04W12/65

Abstract: If a secure element accesses a resource that is separate from the secure element, conducting a secure transaction can be inefficient in terms of power or time. Power usage is inefficient if the resource is never permitted to sleep, and transaction time is inefficient if the resource is permitted to sleep, and the user experiences a delay. To enable dual efficiency, a resource entity is permitted to be powered down. The resource entity is then powered up speculatively by an activation controller. The activation controller predicts an upcoming secure transaction based on sensor output, such as a position fix or a detected electromagnetic field. Based on monitored sensor output, the activation controller issues an activation signal to power up the secure element or the resource entity prior to initiation of the upcoming secure transaction. Thus, power can be conserved without introducing a transaction-processing latency.