公开(公告)号：US11506754B2

公开(公告)日：2022-11-22

申请号：US16946350

申请日：2020-06-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wenxun Qiu ,  Vutha Va ,  Kuldeep Gill ,  Boon Loong Ng ,  Junsu Choi ,  Sungchul Park

IPC: G01S7/41 ,  G01S7/295 ,  G01S13/50 ,  G01S13/10

Abstract: A method for close-range detection, includes transmitting, via a radar transceiver, radar signals to detect an object. The method also includes determining whether the object includes a pattern code based on reflections of the radar signals received by the radar transceiver. In response to determining that the object includes the pattern code, the method includes identifying range information about a range between the electronic device and the pattern code. The method further includes selecting, based on the range information, one or more signals from the reflections of the radar signals that are reflected off of the pattern code. Additionally, the method includes identifying, based on the one or more signals, information about the pattern code.

公开(公告)号：US20200319301A1

公开(公告)日：2020-10-08

申请号：US16595316

申请日：2019-10-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wenxun Qiu ,  Abhishek Sehgal ,  Kuldeep Gill ,  Vutha Va ,  Boon Loong Ng

IPC: G01S7/41 ,  G06K9/00 ,  G01S7/295

Abstract: A method and electronic device for radar-based face authentication anti-spoofing for determining access to the electronic device. The electronic device includes a radar transceiver and at least one processor. The at least one processor is configured to transmit, via the transceiver, a first set of signals, generate a channel impulse response (CIR) based on receipt of reflections of the first set of signals, detect a first CIR tap in the CIR, determine a selection of CIR data based on the detected first CIR tap, determine a profile matching metric based on comparison of the selection of CIR data to a set of predetermined reference signals, and determine whether to allow access to the electronic device based on comparison of the profile matching metric to a profile matching threshold.

公开(公告)号：US11506753B2

公开(公告)日：2022-11-22

申请号：US16595316

申请日：2019-10-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wenxun Qiu ,  Abhishek Sehgal ,  Kuldeep Gill ,  Vutha Va ,  Boon Loong Ng

IPC: G01S7/41 ,  G01S7/295 ,  G06V40/40 ,  G06V40/16

Abstract: A method and electronic device for radar-based face authentication anti-spoofing for determining access to the electronic device. The electronic device includes a radar transceiver and at least one processor. The at least one processor is configured to transmit, via the transceiver, a first set of signals, generate a channel impulse response (CIR) based on receipt of reflections of the first set of signals, detect a first CIR tap in the CIR, determine a selection of CIR data based on the detected first CIR tap, determine a profile matching metric based on comparison of the selection of CIR data to a set of predetermined reference signals, and determine whether to allow access to the electronic device based on comparison of the profile matching metric to a profile matching threshold.