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公开(公告)号：US20200007172A1
公开(公告)日：2020-01-02
申请号：US16447351
申请日：2019-06-20
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Yasuhiro SAGESAKA , Suguru FUJITA
IPC: H04B1/00 , H04W4/44 , H04B1/10 , H04B17/345
Abstract: To provide a communication device that can suppress radio wave interference in communication using a plurality of frequency signals in a simply method, a communication device includes a first communication unit that communicates with a first external device by using a first frequency signal, a second communication unit that communicates with a second external device by using a second frequency signal, and a control unit that controls, when one of the first and second communication units transmits data to a corresponding one of the first and second external devices, the other of the first and second communication units not to receive data.
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公开(公告)号：US20210134074A1
公开(公告)日：2021-05-06
申请号：US17060528
申请日：2020-10-01
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Suguru FUJITA , Nobuharu YOSHIOKA
IPC: G07B15/06 , G08G1/0967 , G08G1/017 , H04W4/44
Abstract: A roadside radio device includes a first radio unit which receives a radio data packet from an in-vehicle radio device, and a first application unit which processes application data. The first radio unit includes a radio data processing unit including a correlation processing unit which compares a data string of vehicle identification information with a data string of communication type information to determine whether there is a correlation in the radio data packet. When the correlation processing unit determines that there is the correlation in the radio data packet, the first radio unit outputs the application data included in the radio data packet to the first application unit. When the correlation processing unit determines that there is no correlation in the radio data packet, the first radio unit treats the radio data packet as invalid data.
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3.发明申请公开(公告)号：US20200294395A1
公开(公告)日：2020-09-17
申请号：US16817198
申请日：2020-03-12
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Hiroshi CHANO , Suguru FUJITA
Abstract: A semiconductor device includes a transmission control unit which performs transmission processing, an area determination unit which determines whether an own vehicle is located in an intersection area, and an operation mode determination unit which determines either a control mode or a terminal mode as an operation mode of a radio terminal device based on an identification information for identifying a source of a received communication frame, and a determination result by the area determination unit. When the operation mode is determined to be the control mode, the transmission control unit outputs, as transmission data, a communication frame including generated control information. When the operation mode is determined to be the terminal mode, the transmission control unit outputs transmission data in synchronization with the received communication frame.
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Patent Agency Ranking
公开(公告)号：US20230141817A1
公开(公告)日：2023-05-11
申请号：US17948788
申请日：2022-09-20
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Suguru FUJITA
Abstract: A collision avoidance system includes a periphery monitoring system which detects vehicles in proximity to a subject vehicle by use of a sensor, an approaching vehicle notifying system which communicates with another vehicle in proximity to the subject vehicle in vehicle-to-vehicle communication, and a detected vehicle comparison/determination system which is connected to the periphery monitoring system and the approaching vehicle notifying system, determines common vehicles detected by both the periphery monitoring system and the approaching vehicle notifying system, and controls the periphery monitoring system and the approaching vehicle notifying system.
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公开(公告)号：US20200374675A1
公开(公告)日：2020-11-26
申请号：US16851936
申请日：2020-04-17
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Suguru FUJITA , Hiroshi CHANO
IPC: H04W4/46
Abstract: A radio communication device includes an application execution unit which generates first transmission data including first application identification information, a communication unit which receives a message including first reception data including the first application identification information, and an occupancy rate determination unit including a transmission ID number counter which counts the number of first application identification information included in the first transmission data and which outputs a count result as a first transmission ID count value, a reception ID number counter which counts the number of first application identification information included in the first reception data and which outputs a count result as a first reception ID count value, and a comparison unit which compares the first transmission ID count value with the first reception ID count value to determine the number of transmission data and the number of reception data have a predetermined ratio.
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公开(公告)号：US20180343070A1
公开(公告)日：2018-11-29
申请号：US15954686
申请日：2018-04-17
Applicant: Renesas Electronics Corporation
Inventor： Suguru FUJITA , Masakatsu YOKOTA , Daisuke OSHIDA
Abstract: To discriminate between a circuit where a failure does not occur and a circuit where a failure might occur, a wireless communication device has tested units which belong to a transmission side circuit, tested units which belong to a reception side circuit, a test signal generation unit for generating a test signal, a test signal reception unit for receiving a test signal, a test signal determination unit for determining whether or not the test signal received by the test signal reception unit is normal, and test signal transfer units for transferring a test signal from the transmission side circuit to the reception side circuit.
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公开(公告)号：US20230145455A1
公开(公告)日：2023-05-11
申请号：US17948769
申请日：2022-09-20
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Suguru FUJITA
IPC: B60W50/14 , B60W30/095 , B60W40/04 , H04W4/46
CPC classification number: B60W50/14 , B60W30/0956 , B60W40/04 , H04W4/46 , B60W2420/42 , B60W2420/52 , B60W2554/4046 , B60W2556/60 , B60W2556/65
Abstract: A collision-avoidance system includes a sensor, a surrounding monitoring system that outputs monitoring detection information based on information acquired by the sensor, an surrounding area information acquisition system that outputs surrounding area information related to a current location, and an assistance system that generates assistance information for controlling the surrounding monitoring system based on the surrounding area information and outputs the generated assistance information to the surrounding monitoring system.
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公开(公告)号：US20210136761A1
公开(公告)日：2021-05-06
申请号：US17036904
申请日：2020-09-29
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Suguru FUJITA , Takashi TONO
Abstract: A roadside radio device includes a first radio unit which receives a radio data packet from an in-vehicle radio device, and a first application unit which receives application data included in the radio data packet. A first application unit includes a vehicle class information comparison unit which compares vehicle identification information with communication type information. When the vehicle class information comparison unit determines that the vehicle identification information and the communication type information match, the first application unit processes the application data received from the first radio unit. When the vehicle class information comparison unit determines that the vehicle identification information and the communication type information do not match, the first application unit treats, as invalid data, the application data received from the first radio unit.
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