-
公开(公告)号：US11938899B2
公开(公告)日：2024-03-26
申请号：US17984837
申请日：2022-11-10
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt
IPC: B60R25/24 , G01S3/46 , G06K7/10 , G07C9/29 , H01Q3/24 , H04L9/40 , H04W4/20 , H04W4/40 , B60R25/01
CPC classification number: B60R25/245 , G01S3/46 , G06K7/10366 , G07C9/29 , H01Q3/24 , H04L63/1466 , H04W4/20 , H04W4/40 , B60R25/01
Abstract: A reader includes a transceiver and a control module. The transceiver is configured to, during a current connection event, monitor notification messages transmitted from a portable access device to a phone-as-a-key (PaaK) system of a vehicle, where the notification messages are transmitted to establish a communication link between the portable access device and the PaaK system. The control module is configured to: perform an in-phase and quadrature phase capture of the notification messages based on fields in one or more of the notification messages, where the fields include a mobile de-whitened section including two or more series of consecutive bits, where the consecutive bits in each of the one or more series are all zeros or all ones; based on the in-phase and quadrature phase capture, determine an angle-of-arrival of the notification messages, and indicate the angle-of-arrival to the PaaK system for permitted access determined by the PaaK system.
-
公开(公告)号：US11498520B2
公开(公告)日：2022-11-15
申请号：US17007152
申请日：2020-08-31
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt
IPC: B60R25/24 , H04W4/20 , H04W4/40 , H01Q3/24 , G01S3/46 , G07C9/29 , H04L9/40 , G06K7/10 , B60R25/01
Abstract: A reader includes a transceiver and a control module. The transceiver is configured to, during a current connection event, monitor notification messages transmitted from a portable access device to a phone-as-a-key (PaaK) system of a vehicle, where the notification messages are transmitted to establish a communication link between the portable access device and the PaaK system. The control module is configured to: perform an in-phase and quadrature phase capture of the notification messages based on fields in one or more of the notification messages, where the fields include a mobile de-whitened section including two or more series of consecutive bits, where the consecutive bits in each of the one or more series are all zeros or all ones; based on the in-phase and quadrature phase capture, determine an angle-of-arrival of the notification messages, and indicate the angle-of-arrival to the PaaK system for permitted access determined by the PaaK system.
-
公开(公告)号：US10902691B2
公开(公告)日：2021-01-26
申请号：US16598292
申请日：2019-10-10
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt , Yuki Tokunaga
IPC: G07C9/00 , B60R25/24 , H04B17/318 , H04B1/7073 , H04W12/12 , B60R25/20 , G01S13/84 , H01Q1/32 , H01Q25/04 , H04B7/06 , H04W4/40 , G07C9/28 , H01Q25/00 , H04B7/15 , G01S7/02 , G01S13/76
Abstract: A system for accessing or providing operational control of a vehicle includes a network device and a control module. The network device includes: an antenna module including antennas with different polarized axes; a transmitter transmitting a series of tones via the antenna module from the vehicle to a second network device and change the frequencies of the tones during the transmission of the series of tones, where, at any moment in time, at least one of the antennas is not cross-polarized with an antenna of the second network device; and a receiver receiving the series of tones from the second network device. The control module: determines differences in phases of the series of tones versus differences in frequencies of the series of tones; and based on the differences in the phases and the differences in the frequencies, determines a distance between the first network device and the second network device.
-
公开(公告)号：US11428799B2
公开(公告)日：2022-08-30
申请号：US16824280
申请日：2020-03-19
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt , John Videtich
Abstract: An access system for a vehicle includes a receiver and an access module. The receiver is configured to receive a signal transmitted from a portable access device to the vehicle. The access module is configured to: generate a differentiated signal based on the received signal; up-sample the differentiated signal to generate a first up-sampled signal; obtain or generate an expected signal; up-sample the expected signal to generate a second up-sampled signal; cross-correlate the first up-sampled signal and the second up-sampled signal to generate a cross-correlation signal; based on the cross-correlation signal, determine a phase difference between the first up-sampled signal and the second up-sampled signal; determine a round trip time of the signal received by the receiver; and permit access to the vehicle based on the round trip time.
-
公开(公告)号：US11379386B2
公开(公告)日：2022-07-05
申请号：US17207885
申请日：2021-03-22
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt , Thomas Peterson , Karl Jager , Kyle Golsch
Abstract: Systems and methods are disclosed and include receiving, with a peripheral device, a message packet from a portable device, the message packet including an authenticated packet with a de-whitened tone byte inserted therein. The portable device generates first message authentication code (MAC) bytes based on a shared secret key and generates the authenticated packet based on the first MAC bytes, first nonce bytes, and a message byte. The peripheral device validates the message packet in response to determining that the first MAC bytes match second MAC bytes and that the first nonce bytes match second nonce bytes. The peripheral device generates a reconstructed message packet in response to validating the message packet by removing the de-whitened tone byte from the authenticated packet. The communication gateway establishes a communication link between the portable device and the communication gateway in response to receiving the reconstructed message packet.
-
Patent Agency Ranking
公开(公告)号：US11223136B2
公开(公告)日：2022-01-11
申请号：US16871351
申请日：2020-05-11
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Osman Ahmed , Warren Guthrie , Raymond Michael Stitt
Abstract: A feed circuit for feeding an antenna includes: a first coupler including a first pair of opposing conductive elements; a second coupler including a second pair of opposing conductive elements; a third coupler including a third pair of opposing conductive elements; a delay line; first terminals configured to connect to the antenna; second terminals connected to a ground reference; and a feed terminal connected to the first coupler and configured to receive at least one of a transmit signal to be transmitted from the antenna or a combined received signal from the antenna. The first terminals are connected to the second coupler and the third coupler and configured to output a signal at different phases to conductive elements of the antenna. The second terminals are connected to the first coupler, the second coupler and the third coupler.
-
公开(公告)号：US11105883B2
公开(公告)日：2021-08-31
申请号：US16511309
申请日：2019-07-15
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： John Videtich , Raymond Michael Stitt
Abstract: Methods and systems are disclosed and include receiving, at a plurality of azimuth angles, a signal via a first communication channel and a second signal via a second communication channel. The method includes determining a plurality of first and second communication channel phase angle differences of the antenna system that each correspond to one of the plurality of azimuth angles. The method includes generating a first reference curve and a second reference curve based on the plurality of first and second communication channel phase angle differences, respectively. The method includes determining a first set and a second set of phase difference limits, and for each set, the method includes: identifying a minimum and maximum capping region; determining a minimum phase difference limit based on a central location of the minimum capping region; and determining a maximum phase difference limit based on a central location of the maximum capping region.
-
公开(公告)号：US11037386B2
公开(公告)日：2021-06-15
申请号：US16598250
申请日：2019-10-10
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt , Kyle Golsch , Warren Guthrie
IPC: G07C9/00 , B60R25/24 , H04B17/318 , H04B1/7073 , B60R25/20 , G01S13/84 , H01Q1/32 , H01Q25/04 , H04B7/06 , H04W4/40 , G07C9/28 , H01Q25/00 , H04B7/15 , H04W12/122 , H04W12/128 , G01S7/02 , G01S13/76
Abstract: A system for detecting a range extension type relay attack includes a transmitter, a receiver and a module. The transmitter transmits a RF signal from one of a vehicle and a portable access device to the other one of the vehicle and the portable access device. The receiver receives a response signal in response to the RF signal. The module: generates a parameter associated with the transmission of the RF signal and the reception of the response signal; based on the parameter, detects the range extension type relay attack performed by an attacking device, where at least one of (i) the RF signal is relayed via the attacking device from the vehicle to the portable access device, or (ii) the response signal is relayed via the attacking device from the portable access device to the vehicle; and perform a countermeasure in response to detecting the range extension type relay attack.
-
公开(公告)号：US10977884B2
公开(公告)日：2021-04-13
申请号：US16456566
申请日：2019-06-28
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Kyle Golsch , Raymond Michael Stitt , Eric Smith
Abstract: A method and apparatus includes a processor that receives information corresponding to a first signal strength of a communication link between a remote device and a communication gateway of a vehicle. The information corresponding to the first signal strength is associated with a first antenna of a sensor and the first antenna includes a first peak main lobe magnitude oriented in a first direction. The processor also receives information corresponding to a second signal strength of the communication link. The information corresponding to the second signal strength is associated with a second antenna. The second antenna includes a second peak main lobe magnitude oriented in a second direction. The processor executes a first boundary line determination that includes determining whether the remote device is located on a first side of a boundary line based on the first signal strength and the second signal strength.
-
公开(公告)号：US10885729B2
公开(公告)日：2021-01-05
申请号：US16598338
申请日：2019-10-10
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Raymond Michael Stitt , Yuki Tokunaga
IPC: G07C9/00 , B60R25/24 , H04B1/7073 , H04B17/318 , H04W12/12 , B60R25/20 , G01S13/84 , H01Q1/32 , H01Q25/04 , H04B7/06 , H04W4/40 , G07C9/28 , H01Q25/00 , H04B7/15 , G01S7/02 , G01S13/76
Abstract: A system for providing operational control of a vehicle includes a first network device and control module. The first network device includes: polarized antennas; a transmitter transmitting an initiator packet via the polarized antennas from the vehicle to a second network device including a synchronization access word and a CW tone, one of the first and second network devices is implemented within the vehicle, the other one of the first and second network devices is a portable access device, and at any moment in time, at least one of the polarized antennas is not cross-polarized with an antenna of the second network device; and a receiver receiving a response packet from the second network device including the synchronization access word and the first CW tone. A control module determines a difference in RTT between the initiator and response packets and detects a range extension type relay attack.
-
-
-
-
-
-
-
-
-
Search Results
56
records
(took 0.025 seconds)
