公开(公告)号：US10193624B2

公开(公告)日：2019-01-29

申请号：US15390993

申请日：2016-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Zan-Yu Chen ,  Ren-Jr Chen ,  Chung-Lien Ho ,  Wen-Chiang Chen

IPC: H04B10/116 ,  H04B10/114 ,  H04Q11/00

Abstract: A visible light communication method performs visible light communication by using a visible light source. In searching a central frequency of the visible light source, a plurality of central-frequency training packets are sent, the central-frequency training packets including a plurality of central-frequency candidates, and one among the plurality of central-frequency candidates is selected as the central frequency of the visible light source based on a first decoding result on the plurality of central-frequency training packets. In searching a bandwidth of the visible light source, a plurality of bandwidth training packets are sent, the bandwidth training packets including a plurality of bandwidth candidates and the central frequency of the visible light source, and one among the plurality of bandwidth candidates is selected as the bandwidth of the visible light source based on a second decoding result on the plurality of bandwidth training packets.

公开(公告)号：US09967886B2

公开(公告)日：2018-05-08

申请号：US14953008

申请日：2015-11-26

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Yi-Ting Wang ,  Wen-Chiang Chen ,  Pang-An Ting

IPC: H04W72/06 ,  H04W72/04 ,  H04L12/741 ,  H04B7/0408 ,  H04B7/06 ,  H04W72/14

CPC classification number: H04W72/046 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0695 ,  H04L45/74 ,  H04W72/0406 ,  H04W72/06 ,  H04W72/14

Abstract: The present disclosure proposes a hierarchical beamforming method and a base station and a user equipment using the same. The method includes following steps. A network entry procedure is performed via a plurality of coarse beams by using a superframe header of a superframe corresponding to each of the coarse beams. In response to a success message associated with the network entry procedure being received, a network entry done message is transmitted by using a preferred coarse beam among the coarse beams. A user equipment (UE) connection is performed via a plurality of fine beams within a direction range of the preferred coarse beam, so as to determine a preferred fine beam by using a frame header of a basic frame corresponding to each of the fine beams, and perform a data packet transmission by using a packet transmission block of the basic frame corresponding to the preferred fine beam.

公开(公告)号：US09864059B2

公开(公告)日：2018-01-09

申请号：US14251299

申请日：2014-04-11

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chu-Yu Huang ,  Chir-Weei Chang ,  Kuo-Tung Tiao ,  Wen-Hung Cheng ,  Hsin-Yueh Sung ,  Ren-Jr Chen ,  Chung-Lien Ho ,  Yi-Ting Wang

IPC: A61B8/00 ,  G01S15/89

CPC classification number: G01S15/8977 ,  G01S15/8995

Abstract: According to an exemplary embodiment, an ultrasound apparatus for beamforming with a plane wave transmission may comprise a transceiver connected to a transducer array having at least one transducer element, and at least one processor. The transceiver transmits at least one substantially planar ultrasonic wave into a target region at one or more angles relative to the transducer array, and receives one or more signals responsive from the transducer array. The at least one processor applies a fast Fourier transform (FFT) to the one or more signals from each of the at least one transducer element and calculates at least one frequency within a frequency region, and applies an inverse FFT to at least one produced frequency data.

公开(公告)号：US09645121B2

公开(公告)日：2017-05-09

申请号：US14150171

申请日：2014-01-08

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen

IPC: G01N29/34 ,  G01N29/26 ,  G01N29/06

CPC classification number: G01N29/262 ,  G01N29/0654 ,  G01N2291/02491

Abstract: A nonlinear dynamic focusing control method includes: (1) using a minimum length in a scan line having the minimum length and a maximum length as an initial location and assigning a focal point on the scan line; (2) calculating half depth of focus of the focal point, and the initial location plus the half depth of focus of the focal point being the location of this focal point on the scan line; (3) determining an initial calculation location of the next focal point by adding the half depth of focus of the focal point from the location of this focal point on the scan line in the direction of the maximum length; and (4) determining if the initial calculation location of the next focal point is greater than the maximum length.

公开(公告)号：US10820323B2

公开(公告)日：2020-10-27

申请号：US15933381

申请日：2018-03-23

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Zanyu Chen ,  Wen-Chiang Chen

IPC: H04W72/04 ,  H04W16/28 ,  H04W76/27

Abstract: An aspect of the disclosure includes a beam indication method for a multibeam wireless communication system, including: obtaining a number of candidate beams and a number of active beams to determine a plurality of beam groups, wherein the beam groups are selections of the active beams from the candidate beams; extracting a plurality of sets of the beam groups from the beam groups, wherein the plurality of sets of the beam groups comprises a first beam group set; assigning a first indicator to the first beam group set; assigning a beam indicator to one of the beam groups in the first beam group set to generate a codebook for beam indication according to the first indicator and the beam indicator.

公开(公告)号：US20200014575A1

公开(公告)日：2020-01-09

申请号：US16233182

申请日：2018-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Ying Chen ,  Ren-Jr Chen ,  Zan-Yu Chen ,  Chung-Lien Ho ,  Wen-Chiang Chen

IPC: H04L27/26 ,  H04B1/00

Abstract: A software-defined radio system for detecting packets is disclosed, including: a transmitting end configured for assigning a preamble and a postamble to a start position and an end position of a packet of a signal, respectively, before transmitting the signal; and a receiving end configured for detecting if a packet exists in the air or in a channel based on the preamble and the postamble, wherein the receiving end stores the signal in memory when detecting the preamble, and stops storing the signal in the memory and transmits the signal to a computing device when detecting the postamble. A packet detection method for a software-defined radio system is also provided.

公开(公告)号：US20180338254A1

公开(公告)日：2018-11-22

申请号：US15684952

申请日：2017-08-24

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Zanyu Chen ,  Wen-Chiang Chen

IPC: H04W24/10

Abstract: An aspect of the disclosure includes a beam tracking method used by a user equipment, the method would include: receiving, within a first time period, a first plurality of reference signal sequences including a first reference signal sequence associated with a first cell beam and a second reference signal sequence associated with a second cell beam; measure a beam quality which include a first measurement of a first cell beam and a second measurement of a second cell beam; generating, based on the beam quality, a measurement report; and transmitting the measurement report.

公开(公告)号：US20170164211A1

公开(公告)日：2017-06-08

申请号：US15367202

申请日：2016-12-02

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Wen-Chiang Chen

IPC: H04W16/28 ,  H04W72/04 ,  H04L27/26 ,  H04W48/16 ,  H04W74/08

CPC classification number: H04W16/28 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L27/2602 ,  H04W36/0088 ,  H04W48/16 ,  H04W72/0413 ,  H04W72/046 ,  H04W72/085 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: According to one of the exemplary embodiments, the proposed network entry method is applicable to a user equipment and includes: receiving, within an mmWave band, Q scan beams which have Q IDs over M mmWave time units as each mmWave time unit includes a payload region and a BF header region that includes N BSSs with each of the BSSs corresponding to a different one of the Q scan beams, wherein M, N, and Q are integers greater than 1 and M*N=Q; determining a best beam of the UE based on the BSSs of the Q scan beams; determining a best scan beam of the Q scan beams based on the BSSs of the Q scan beams after determining the best beam of the UE; and transmitting, within the mmWave band, a random access preamble (RAP) by using the best beam of the UE.

公开(公告)号：US20160165583A1

公开(公告)日：2016-06-09

申请号：US14953008

申请日：2015-11-26

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Yi-Ting Wang ,  Wen-Chiang Chen ,  Pang-An Ting

IPC: H04W72/04 ,  H04W72/14 ,  H04L12/741 ,  H04W72/06

CPC classification number: H04W72/046 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0695 ,  H04L45/74 ,  H04W72/0406 ,  H04W72/06 ,  H04W72/14

Abstract: The present disclosure proposes a hierarchical beamforming method and a base station and a user equipment using the same. The method includes following steps. A network entry procedure is performed via a plurality of coarse beams by using a superframe header of a superframe corresponding to each of the coarse beams. In response to a success message associated with the network entry procedure being received, a network entry done message is transmitted by using a preferred coarse beam among the coarse beams. A user equipment (UE) connection is performed via a plurality of fine beams within a direction range of the preferred coarse beam, so as to determine a preferred fine beam by using a frame header of a basic frame corresponding to each of the fine beams, and perform a data packet transmission by using a packet transmission block of the basic frame corresponding to the preferred fine beam.

Abstract translation: 本公开提出了分层波束成形方法和基站以及使用它们的用户设备。 该方法包括以下步骤。 通过使用与每个粗略波束对应的超帧的超帧报头，经由多个粗略波束执行网络输入过程。 响应于正在接收的网络输入过程相关联的成功消息，通过在粗略波束中使用优选的粗略波束来发送网络进入完成消息。 通过在优选粗略波束的方向范围内的多个精细波束执行用户设备（UE）连接，以便通过使用与每个精细波束对应的基本帧的帧头来确定优选的精细波束， 并通过使用对应于优选精细波束的基本帧的分组传输块来执行数据分组传输。

公开(公告)号：US12008906B2

公开(公告)日：2024-06-11

申请号：US17556281

申请日：2021-12-20

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chung-Lien Ho ,  Wei-Kuo Chen

IPC: G08G1/16 ,  B60Q9/00 ,  G07C5/08

CPC classification number: G08G1/167 ,  B60Q9/008 ,  G07C5/0808

Abstract: A method of blind spot detection is provided. The method of blind spot detection is used for a vehicle including a first vehicle body and a second vehicle body dragged by the first vehicle body. The method of blind spot detection comprises the following steps: obtaining a turning angle information of the second vehicle body relative to the first vehicle body by a first sensor while the vehicle is moving; determining a predetermined information related to the vehicle and/or a second sensor; dynamically defining a blind spot area around the vehicle according to the turning angle information and the predetermined information; and receiving a sensing signal regarding an object around the vehicle from the second sensor to determine whether the object is located in the blind spot area.