公开(公告)号：US20220343005A1

公开(公告)日：2022-10-27

申请号：US17727012

申请日：2022-04-22

Applicant: TruePic Inc.

Inventor： Sherif HANNA ,  Thomas ZENG ,  Chi Shing CHAN ,  Matthew ROBBEN

IPC: G06F21/62 ,  H04L9/06 ,  H04L9/32 ,  H04L9/30

Abstract: In general, one aspect disclosed features a media-capture device, comprising: one or more sensors; a hardware processor; and a non-transitory machine-readable storage medium encoded with instructions executable by the hardware processor to perform a method comprising: initiating acquisition of one or more sensor data samples representing analog phenomena captured by the one or more sensors; receiving the one or more sensor data samples; encoding the one or more sensor data samples; generating a to-be-signed data structure comprising at least one of: the one or more encoded sensor data samples, or one or more cryptographic hashes of the one or more encoded sensor data samples; generating a cryptographic hash of the to-be-signed data structure; determining whether a time-stamping server is reachable over a network connection by the media capture device; and configuring a second data structure based on the determination of whether the time-stamping server is reachable.

公开(公告)号：US20230351011A1

公开(公告)日：2023-11-02

申请号：US18349359

申请日：2023-07-10

Applicant: TruePic Inc.

Inventor： Thomas Meng-tao ZENG ,  Oliver RICE ,  Chi Shing CHAN ,  Sherif HANNA

IPC: H04N21/414 ,  G06F21/64 ,  G06F21/50 ,  G06F21/00 ,  G06F21/57 ,  G06F21/85

CPC classification number: G06F21/50 ,  G06F21/00 ,  G06F21/57 ,  G06F21/64 ,  G06F21/85 ,  H04N21/41407

Abstract: In general, one aspect disclosed features a media asset capture and processing method, implemented via a computer-based state machine executing on a computer processor, the method comprising: implementing a first phase including media asset capture and frame processing limited to Rich Execution Environment (REE) read-only (RO) frame access; implementing a second phase including processing with REE read-write (RW) frame access; and implementing a third phase including processing with REE read-only (RO) frame access.

公开(公告)号：US20220294640A1

公开(公告)日：2022-09-15

申请号：US17685877

申请日：2022-03-03

Applicant: TruePic Inc.

Inventor： Sherif HANNA ,  Thomas ZENG ,  Chi Shing CHAN ,  Matthew ROBBEN

IPC: H04L9/32 ,  H04L67/1097 ,  H04L9/08

Abstract: A media-capture device initiates acquisition of sensor data samples representing analog phenomena; encodes the samples; generates a to-be-signed data structure comprising the encoded samples and/or cryptographic hashes of the samples; generates a cryptographic hash of the to-be-signed data structure; transmits a time-stamping request to a time-stamping server, the time-stamping request comprises the cryptographic hash of the to-be-signed data structure, wherein the time-stamping server generates a signed time-stamp; generates a digital signature using the to-be-signed data structure, the signed time-stamp, a private cryptographic key, and a signed certificate for the corresponding public cryptographic key; and generates a second data structure comprising the samples, the to-be-signed data structure, and the digital signature.

公开(公告)号：US20220078522A1

公开(公告)日：2022-03-10

申请号：US17468842

申请日：2021-09-08

Applicant: TruePic Inc.

Inventor： Thomas Meng-tao ZENG ,  Oliver RICE ,  Chi Shing CHAN ,  Sherif HANNA

IPC: H04N21/472 ,  H04N21/414 ,  H04N21/4627 ,  H04N21/4147

Abstract: In general, one aspect disclosed features a media asset capture and processing method, implemented via a computer-based state machine executing on a computer processor, the method comprising: implementing a first phase including media asset capture and frame processing limited to Rich Execution Environment (REE) read-only (RO) frame access; implementing a second phase including processing with REE read-write (RW) frame access; and implementing a third phase including processing with REE read-only (RO) frame access.