公开(公告)号：US11778456B2

公开(公告)日：2023-10-03

申请号：US17169422

申请日：2021-02-06

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Martin Fröhlich

IPC: H04L29/06 ,  H04W12/02 ,  H04W12/03 ,  H04W12/122 ,  H04W12/30 ,  H04W12/42 ,  H04L9/06 ,  G06F30/337 ,  G06F21/64 ,  G06F9/455

CPC classification number: H04W12/02 ,  H04L9/0631 ,  H04W12/03 ,  H04W12/122 ,  H04W12/35 ,  H04W12/42

Abstract: An improved Narrowband Internet of Things device (UE) supporting resource sharing for integrated Subscriber Identity Modules (iSIM) is provided. The cost per UE is reduced by reducing the chip area and energy consumption of an integrated UICC chip therein since identical components of the modem and the iSIM are designed as shared components, whereas a hardware arbiter manages an access to THE shared components by the modem or the iSIM and prevents information leaking.

公开(公告)号：US11513790B2

公开(公告)日：2022-11-29

申请号：US17029032

申请日：2020-09-22

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Andreas Von Borany ,  Martin Fröhlich

IPC: G06F8/658 ,  G06F8/654

Abstract: A method for updating a firmware image comprises: — dividing a new firmware image into blocks 1* . . . n* . . . N*, wherein n* and N* are natural numbers, and wherein the size S is determined empirically before updating the firmware image, a) matching a first block 1* of the new firmware image against the full old firmware image using a binary differential and patching algorithm by b) creating a first block patch of the new and old firmware image according to said first block 1* of the new firmware image and the blocks 1 to M of the old firmware image, and repeating steps a) and b) wherein the consecutive repetitions are performed using only the blocks of the old firmware image not being processed yet, wherein the old binary firmware image is updated on a block-by-block basis, and wherein the currently processed block patch n is tracked.

公开(公告)号：US11895503B2

公开(公告)日：2024-02-06

申请号：US17134134

申请日：2020-12-24

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Martin Fröhlich

IPC: H04L29/06 ,  H04W12/30 ,  H04W12/40 ,  H04W8/18 ,  H04W12/06 ,  G16Y40/30

CPC classification number: H04W12/35 ,  H04W8/18 ,  H04W12/06 ,  H04W12/40 ,  G16Y40/30

Abstract: A method for improving memory utilization of a Narrowband Internet of Things device (UE) is provided. The method includes: switching the modem to a provisioning mode and allocating a portion of the dedicated memory of the modem during provisioning of the iSIM on the modem chip of the UE; reusing, by the iSIM, the portion of the dedicated memory of the modem for processing provisioning data; securely cleaning up the allocated portion of the dedicated memory of the modem by a protection hardware block after leaving the provisioning mode; and allocating the portion of the dedicated memory of the modem shared with the iSIM back to the modem.