专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06594106B1 Adaptive servo estimator and compensator for coil and carriage deformation in voice coil motor driven hard disk drive 失效
标题翻译：音圈电机驱动硬盘驱动器中线圈和滑架变形的自适应伺服估计器和补偿器
公开(公告)号：US06594106B1
公开(公告)日：2003-07-15
申请号：US09429865
申请日：1999-10-29
申请人： Louis Joseph Serrano , Mantle Man-Hon Yu , Kirk Barrows Price , Lei Zhang
发明人： Louis Joseph Serrano , Mantle Man-Hon Yu , Kirk Barrows Price , Lei Zhang
IPC分类号： G11B5596
CPC分类号： G11B5/5556
摘要： A system and method for adaptively compensating for real-time variations in mechanical dynamics of a head-positioning assembly during track follow and seek operations. The head-positioning assembly includes a voice coil actuator that positions a read/write head utilizing a coil and carriage in conformity with an actuator control signal. Variations in resonant mode characteristics are anticipated in real-time in accordance with measured temperature variations. These parametric variations are translated in real-time by a state space model to determine a secondary velocity and displacement of the read/write head during track follow and seek operations. In response to this secondary velocity and displacement determination, the actuator control signal is dynamically adjusted to compensate for the determined secondary head velocity and displacement, thereby improving head positioning accuracy and increasing servo bandwidth.
摘要翻译：一种系统和方法，用于在轨道跟踪和寻道操作期间自动补偿头部定位组件的机械动力学实时变化。头部定位组件包括音圈致动器，该音圈致动器使用符合致动器控制信号的线圈和滑架来定位读/写头。根据测量的温度变化，可以实时预测谐振模式特性的变化。通过状态空间模型实时地转换这些参数变化，以确定跟踪跟踪操作期间读/写头的二次速度和位移。响应于该二次速度和位移确定，致动器控制信号被动态地调节以补偿确定的次级头部速度和位移，从而提高头部定位精度并增加伺服带宽。

2. 发明授权

US12122756B2 Biflavone compound against I-type herpes simplex virus, and preparation method therefor and use thereof 有权
公开(公告)号：US12122756B2
公开(公告)日：2024-10-22
申请号：US18687803
申请日：2022-08-22
申请人： SICHUAN ACADEMY OF SCIENCES OF TRADITIONAL CHINESE MEDICINE , Lei Zhang , Chongjun Yuan
发明人： Lei Zhang , Chongjun Yuan , Mingming Yuan , Shuai Chen , Wei Yang , Sen Luo , Xia Wu
IPC分类号： A61P31/22 , A61K31/352 , C07D311/36
CPC分类号： C07D311/36 , A61K31/352 , A61P31/22
摘要： A biflavone compound against an I-type herpes simplex virus, and a preparation method therefor and the use thereof. The bioflavone compound is a compound of formula I, or a crystal form thereof, or a salt thereof, or a stereoisomer thereof, or a solvate thereof, or a hydrate thereof, or a prodrug thereof. The biflavone compound has a good inhibitory effect on the I-type herpes simplex virus, has a significant effect on the replication and direct inactivation of the virus, and is dose dependent. The compound is also effective in preventing and/or treating viral keratitis caused by the I-type herpes simplex virus. The compound has good water solubility and low toxicity. It can be prepared into an external preparation for resisting the I-type herpes simplex virus, such as eye drops and eye ointment, and external ointments, creams, gel agents, film agents, film-coating agents, etc.

3. 发明授权

US12073011B2 Virtual interfaces for controlling IoT devices 有权
公开(公告)号：US12073011B2
公开(公告)日：2024-08-27
申请号：US17901630
申请日：2022-09-01
申请人： Youjean Cho , Lei Zhang , Daekun Kim , Ava Robinson , Yu Jiang Tham , Rajan Vaish , Andrés Monroy-Hernández
发明人： Youjean Cho , Lei Zhang , Daekun Kim , Ava Robinson , Yu Jiang Tham , Rajan Vaish , Andrés Monroy-Hernández
IPC分类号： G06F3/01 , G06F3/033 , G06V10/20 , G06V40/20 , G16Y20/40 , H04N13/111
CPC分类号： G06F3/011 , G06F3/017 , G06F3/0334 , G06V10/255 , G06V40/20 , G16Y20/40 , H04N13/111
摘要： A virtual interface application presented in augmented reality (AR) is described for controlling Internet of Things (IoT) products. The virtual interface application enables a user of a portable electronic device to activate a virtual control interface overlay on a display, receive a selection from the user using her hands or feet, and send a control signal to a nearby IoT product which executes an action in accordance with the selection. The virtual control interface is presented on the display as a virtual object in an AR environment. The virtual interface application includes a foot tracking tool for detecting an intersection between the foot location (in the physical environment) and the virtual surface position (in the AR environment). When an intersection is detected, the virtual interface application sends a control signal with instructions to the IoT product.

4. 发明授权

US12045383B2 Virtual AR interfaces for controlling IoT devices using mobile device orientation sensors 有权
公开(公告)号：US12045383B2
公开(公告)日：2024-07-23
申请号：US17901568
申请日：2022-09-01
申请人： Lei Zhang , Youjean Cho , Daekun Kim , Ava Robinson , Yu Jiang Tham , Rajan Vaish , Andrés Monroy-Hernández
发明人： Lei Zhang , Youjean Cho , Daekun Kim , Ava Robinson , Yu Jiang Tham , Rajan Vaish , Andrés Monroy-Hernández
IPC分类号： G06F3/01 , G06F1/16 , G06T19/00
CPC分类号： G06F3/011 , G06F1/163 , G06T19/006
摘要： Described are virtual AR interfaces for generating a virtual rotational interface for the purpose of controlling connected IoT devices using the inertial measurement unit (IMU) of a portable electronic device. The IMU control application enables a user of a portable electronic device to activate a virtual rotational interface overlay on a display and adjust a feature of a connected IoT product by rotating a portable electronic device. The device IMU moves a slider on the virtual rotational interface. The IMU control application sends a control signal to the IoT product which executes an action in accordance with the slider position. The virtual rotational interface is presented on the display as a virtual object in an AR environment. The IMU control application detects the device orientation (in the physical environment) and in response presents a corresponding slider element on the virtual rotational interface (in the AR environment).

5. 发明授权

US11246019B2 Systems and methods for communication and sharing amongst groups of vehicles 有权
公开(公告)号：US11246019B2
公开(公告)日：2022-02-08
申请号：US16883089
申请日：2020-05-26
申请人： Saniyal A Khan , Lei Zhang , Lyle Baumgarten , Matthew J Mazurek , Michael J Minewiser
发明人： Saniyal A Khan , Lei Zhang , Lyle Baumgarten , Matthew J Mazurek , Michael J Minewiser
IPC分类号： H04W4/40 , H04W4/029 , H04W4/021 , H04W4/08 , G07C5/00 , G10L25/48 , H04N5/91 , H04W36/14 , H04W88/06
摘要： Techniques for controlling communication amongst a group of vehicles include determining whether a cellular network is unavailable or a user input indicative of a switchover request has been received, when the cellular network is available, controlling a cellular network transceiver to share information between the vehicle and one or more other vehicles of the group of vehicles via the cellular network, and when the cellular network is unavailable or in response to receiving the user input indicative of the switchover request, controlling a low Earth orbit (LEO) satellite network transceiver to share information between the vehicle and the one or more other vehicles of the group of vehicles via an LEO satellite network and not via the cellular network.

6. 发明授权

US10711077B2 Ziegler-natta catalyst composition with controlled morphology 有权
公开(公告)号：US10711077B2
公开(公告)日：2020-07-14
申请号：US13022021
申请日：2011-02-07
申请人： Lei Zhang , Kenneth Blackmon , David Rauscher
发明人： Lei Zhang , Kenneth Blackmon , David Rauscher
IPC分类号： B01J31/00 , B01J31/38 , C08F10/00 , C08F110/02
摘要： Catalyst Systems, processes of forming the same and polymers and polymerization processes are described herein. The process of forming the catalyst system generally includes providing a first compound including a magnesium dialkoxide and aluminum alkoxide: contacting the first compound with a first agent and a second agent to form a solution of reaction product “A”, the first agent including a titanating agent and the second agent including a first metal halide; contacting the solution of reaction product “A” with a third agent to form a solid reaction product “B”, the third agent including a second metal halide: contacting the solid reaction product “B” with a fourth agent to form a solid reaction product “C”, the fourth agent including a third metal halide: optionally contacting the solid reaction product “C” with a fifth agent to form a solid reaction product “D”, the fifth agent including a fourth metal halide; and contacting the solid reaction product “C” or “D” with a sixth agent to form a catalyst component, the sixth agent including a first organoaluminum compound.

7. 发明授权

US10091528B2 Method and system for scalable video compression and transmission 有权
公开(公告)号：US10091528B2
公开(公告)日：2018-10-02
申请号：US12770524
申请日：2010-04-29
申请人： Alexander G. MacInnis , Lei Zhang
发明人： Alexander G. MacInnis , Lei Zhang
IPC分类号： H04N7/12 , H04N19/59 , H04N19/172 , H04N19/61 , H04N19/132 , H04N19/146 , H04N19/174 , H04N19/184 , H04N19/587 , H04N19/85
摘要： A video processing device receives video data and transmits the video to a display device at a new bit rate that is dynamically adjusted based on variable conditions. The new bit rate is adjusted, at least, by scaling the video and/or a residual image and may be adjusted utilizing compression functions, compression parameters, scale factor, frame rate, color space, and chroma sub-sampling. The display receives video at the adjusted new bit rate and decompresses the video in accordance with corresponding adjustments in the video processing device. Bit rate determination is based on variable operating conditions, display information, image quality, BER, packet error, SNR, desired level of compression, energy consumption, link congestion and display capabilities. Video may be scaled prior to compression. The video may comprise a frame and/or a slice. DPCM, H.264, AVC, transform compression and scaling may be utilized. The display may utilize intra-frame spatial prediction.

8. 发明授权

US10016747B2 Base stock production using a high activity catalyst 有权
公开(公告)号：US10016747B2
公开(公告)日：2018-07-10
申请号：US14887492
申请日：2015-10-20
申请人： Lei Zhang , Sylvain Hantzer , Wenyih F. Lai , Stephen J. McCarthy , Tracie L. Owens
发明人： Lei Zhang , Sylvain Hantzer , Wenyih F. Lai , Stephen J. McCarthy , Tracie L. Owens
IPC分类号： B01J29/70 , C10M101/02 , C10G45/64 , C10G65/12 , C10G65/04 , B01J29/74
CPC分类号： B01J29/703 , B01J29/74 , C10G45/62 , C10G45/64 , C10G65/043 , C10G65/12 , C10G2300/302 , C10G2300/304 , C10G2400/10 , C10M101/02
摘要： Methods are provided for using a dewaxing catalyst formed using at least two structure directing agents for production of a lubricant base stock. For example, ZSM-48 crystals formed using multiple directing agents (and/or formulated catalysts made using such crystals) can have an increased activity and/or can provide an improved yield during catalytic production of lubricant base stocks. Additionally or alternately, ZSM-48 crystals formed using multiple directing agents (and/or formulated catalysts made using such crystals) can provide improved aromatic saturation during processing of a feed for lubricant base stock production.

10. 发明授权

US09943627B2 Method of producing personalized biomimetic drug-eluting coronary stents by 3D-printing 有权
公开(公告)号：US09943627B2
公开(公告)日：2018-04-17
申请号：US14743782
申请日：2015-06-18
申请人： Yujie Zhou , Wei Sun , Qian Ma , Lei Zhang
发明人： Yujie Zhou , Wei Sun , Qian Ma , Lei Zhang
IPC分类号： A61L31/16 , A61F2/82 , A61L31/10 , A61L31/14 , B33Y80/00 , B33Y70/00 , A61L31/06 , A61B90/00 , B29C64/106 , B29C64/153 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29K67/00
CPC分类号： A61L31/16 , A61B90/06 , A61B2090/061 , A61F2/82 , A61F2210/0004 , A61F2230/0067 , A61F2230/0069 , A61F2240/001 , A61F2240/002 , A61F2250/0067 , A61L31/06 , A61L31/10 , A61L31/148 , A61L2300/416 , A61L2420/06 , B29C64/106 , B29C64/153 , B29K2067/046 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B33Y80/00 , C08L67/04
摘要： A method for using 3D printing technology produces personalized biomimetic drug-eluting coronary stent and the product thereof. The process of manufacturing stent, based on coronary angiography imaging data, measures the diameter of diseased coronary and conducts 3D reconstruction. A personalized stent for each patient according to diameter, length, and morphological characteristics of target vessel that suited to the lesion is produced. The coronary stent is formed from biodegradable poly-L-lactic acid (PLLA) or other materials. The stent is modeled by 3D printing and then coated with polymers carrying antiproliferative drug to reduce restenosis (the polymers is a mixture of antiproliferative drug and PDLLA at a ratio of 1:1). The biomimetic drug-eluting coronary stent produced by 3D printing technology is personalized stent for each patient according to different characteristics of diseased coronary, reduces the incidence of vascular injury, thrombosis, dissection and other complications caused by stent and vessel diameter mismatch.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式