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公开(公告)号：US11035746B2
公开(公告)日：2021-06-15
申请号：US16517685
申请日：2019-07-22
Applicant: Industrial Technology Research Institute
Inventor： Chih-Che Lin , Chih-Yuan Chen , Chung-Yuan Su , Chao-Ta Huang
Abstract: A multi-axis force sensor including a central portion, an outer ring portion, and at least one sensing portion disposed along an axial direction of an axis is provided. The sensing portion includes a first and a second elements connected with each other, and at least one first and at least one second strain gauges. A first end surface of the first element is connected to the central portion, and a second end surface of the second element is connected to the outer ring portion. A normal vector of the first end surface is parallel to the axis and the axis passes through a centroid of the first end surface. When the first end surface is subjected to an axial force, a first strain of a first sensing region of the first element in the axial direction is smaller than a second strain of a second sensing region of the second element in the axial direction. When the first end surface is subjected to a first torque with respect to the axis, a first twist angle of the first sensing region with respect to the axis is greater than a second twist angle of the second sensing region with respect to the axis.
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公开(公告)号：US10794682B2
公开(公告)日：2020-10-06
申请号：US16136277
申请日：2018-09-20
Applicant: Industrial Technology Research Institute
Inventor： Chih-Yuan Chen , Chung-Yuan Su , Chih-Che Lin , Chao-Ta Huang
Abstract: A ball screw with tilt detector includes a screw rod, two screw nuts, a channel, a plurality of balls, and a tilt detector. The screw rod is extended along a direction of an axis. The two screw nuts are installed on the screw rod and capable of moving along the axis. The tilt detector is disposed between the two screw nuts to detect a tilt angle and a preload of the two screw nuts. The tilt detector includes a force receiving element, at least one first strain sensor, and at least one second strain sensor. The force receiving element includes a point symmetric ring-type structure, and the ring-type structure has two planes which are parallel to each other and respectively contact the two screw nuts.
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Patent Agency Ranking
3.发明授权System and method for adjusting the frequency of updating certificate revocation list 有权用于调整更新证书撤销列表频率的系统和方法公开(公告)号：US09094216B2
公开(公告)日：2015-07-28
申请号：US13654344
申请日：2012-10-17
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Chih-Che Lin , Pei-Chuan Tsai
CPC classification number: H04L9/3268 , H04L63/20 , H04L2209/16
Abstract: A method for adjusting the frequency of updating certificate revocation list is provided. The method is used in a certificate authority. The method includes: receiving a first information indicating security levels from neighbor certificate authorities in a neighborhood or a central certificate authority; detecting whether the certificate authority has received a signal indicating that a user is using a revoked certificate and generating a second information of a security level; calculating an index value or a set of index values by the first information indicating the security levels of neighborhoods and the second information indicating its own security level; and adjusting the update frequency of updating the certificate revocation list according to the calculated index values or the set of index values.
Abstract translation: 提供了一种用于调整更新证书撤销列表的频率的方法。 该方法用于证书颁发机构。 该方法包括：从附近或中央认证机构的邻近证书机构接收指示安全级别的第一信息; 检测证书颁发机构是否已经接收到指示用户正在使用撤销的证书并产生安全级别的第二信息的信号; 通过指示邻域的安全级别的第一信息和指示其自身安全级别的第二信息来计算索引值或一组索引值; 以及根据所计算的索引值或索引值集合来调整更新证书吊销列表的更新频率。
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公开(公告)号：US20140289512A1
公开(公告)日：2014-09-25
申请号：US13847562
申请日：2013-03-20
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Huei-Ru Tseng , Pei-Chuan Tsai , Rong-Hong Jan , Chien Chen , Hsia-Hsin Li , Chih-Che Lin
IPC: H04L9/32
CPC classification number: H04L9/3265 , H04L9/3268
Abstract: Embodiments of the present invention are directed to methods and systems for generating and revoking, as well as validating, certificates used to protect communications within networks while maintaining privacy protection. In the context of a method, certificate generation and revocation with privacy preservation comprises determining a secret value to be used by a certificate authority and an entity; constructing a key tree based on the secret value, wherein the leaves of the key tree represent derived keys for the certificates for the entity; and generating certificates for the entity based in part on the key tree leaves. The method further comprises determining that one or more of the certificates should be revoked; determining a minimum key node set that covers the certificates to be revoked; adding the minimum key node set to a certificate revocation list; and providing the certificate revocation list to one or more entities. Corresponding apparatuses and computer program products are also provided.
Abstract translation: 本发明的实施例涉及用于生成和撤销以及验证用于保护网络内的通信的证书同时保持隐私保护的方法和系统。 在方法的上下文中，具有隐私保护的证书生成和撤销包括确定由认证机构和实体使用的秘密值; 基于秘密值构建密钥树，其中密钥树的叶表示实体的证书的导出密钥; 并且基于密钥树叶部分地为实体生成证书。 该方法还包括确定一个或多个证书应被撤销; 确定覆盖要撤销的证书的最小密钥节点集; 将最小密钥节点集添加到证书吊销列表中; 并将证书吊销列表提供给一个或多个实体。 还提供了相应的设备和计算机程序产品。
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公开(公告)号：US11566954B2
公开(公告)日：2023-01-31
申请号：US16899475
申请日：2020-06-11
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Chih-Che Lin , Chih-Yuan Chen , Chung-Yuan Su , Chao-Ta Huang
Abstract: The disclosure relates to a force measurement device including central portion, fixing portion, first and second sensing portions, and first and second electromechanical elements. The first sensing portion has first natural frequency. The first sensing portion is connected to the central portion. The second sensing portion has a second natural frequency. The second sensing portion is connected to the first sensing portion and the fixing portion. The first electromechanical element is disposed on the first sensing portion to measure a first vibration amplitude. The second electromechanical element is disposed on the second sensing portion to measure a second vibration amplitude. When the central portion is subjected to a first force, the first vibration amplitude is larger than the second vibration amplitude. When the central portion is subjected to a second force, the first vibration amplitude is smaller than the second vibration amplitude.
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公开(公告)号：US20190204064A1
公开(公告)日：2019-07-04
申请号：US16136277
申请日：2018-09-20
Applicant: Industrial Technology Research Institute
Inventor： Chih-Yuan Chen , Chung-Yuan Su , Chih-Che Lin , Chao-Ta Huang
Abstract: A ball screw with tilt detector includes a screw rod, two screw nuts, a channel, a plurality of balls, and a tilt detector. The screw rod is extended along a direction of an axis. The two screw nuts are installed on the screw rod and capable of moving along the axis. The tilt detector is disposed between the two screw nuts to detect a tilt angle and a preload of the two screw nuts. The tilt detector includes a force receiving element, at least one first strain sensor, and at least one second strain sensor. The force receiving element includes a point symmetric ring-type structure, and the ring-type structure has two planes which are parallel to each other and respectively contact the two screw nuts.
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7.发明授权公开(公告)号：US09425967B2
公开(公告)日：2016-08-23
申请号：US13847562
申请日：2013-03-20
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Huei-Ru Tseng , Pei-Chuan Tsai , Rong-Hong Jan , Chien Chen , Hsia-Hsin Li , Chih-Che Lin
CPC classification number: H04L9/3265 , H04L9/3268
Abstract: Embodiments of the present invention are directed to methods and systems for generating and revoking, as well as validating, certificates used to protect communications within networks while maintaining privacy protection. In the context of a method, certificate generation and revocation with privacy preservation comprises determining a secret value to be used by a certificate authority and an entity; constructing a key tree based on the secret value, wherein the leaves of the key tree represent derived keys for the certificates for the entity; and generating certificates for the entity based in part on the key tree leaves. The method further comprises determining that one or more of the certificates should be revoked; determining a minimum key node set that covers the certificates to be revoked; adding the minimum key node set to a certificate revocation list; and providing the certificate revocation list to one or more entities. Corresponding apparatuses and computer program products are also provided.
Abstract translation: 本发明的实施例涉及用于生成和撤销以及验证用于保护网络内的通信的证书同时保持隐私保护的方法和系统。 在方法的上下文中，具有隐私保护的证书生成和撤销包括确定由认证机构和实体使用的秘密值; 基于秘密值构建密钥树，其中密钥树的叶表示实体的证书的导出密钥; 并且基于密钥树叶部分地为实体生成证书。 该方法还包括确定一个或多个证书应被撤销; 确定覆盖要撤销的证书的最小密钥节点集; 将最小密钥节点集添加到证书吊销列表中; 并将证书吊销列表提供给一个或多个实体。 还提供了相应的设备和计算机程序产品。
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