公开(公告)号：US07236988B2

公开(公告)日：2007-06-26

申请号：US10836974

申请日：2004-04-30

申请人： Jin Li ,  Hong-Hui Sun ,  Hu Li ,  Qian Zhang ,  Xiaoning Ling

发明人： Jin Li ,  Hong-Hui Sun ,  Hu Li ,  Qian Zhang ,  Xiaoning Ling

IPC分类号： G06F17/00

CPC分类号： G06F17/30067 ,  G06F17/30017 ,  Y10S707/99938 ,  Y10S707/99939 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99944 ,  Y10S707/99945 ,  Y10S707/99948 ,  Y10S707/99952 ,  Y10S707/99953

摘要： Methods and systems for providing random access to structured media content are described. The described methods and systems implement one or more of an importance evaluator module, a priority evaluator module, and a preemptive loader module. The importance evaluator assigns importance values to different portions of a structured media content file. The importance values are used to determine whether to remove individual portions of the structured media content file from a client cache file to make room for other more important file portions. The priority evaluator assigns priority values to different portions of a structured media content file. The priority values are used to determine an order in which the portions are to be provided from a server to a client. The preemptive loader preemptively facilitates provision of one or more portions of a structured media content file to a client, without the client specifically requesting so.

摘要翻译： 描述了用于提供对结构化媒体内容的随机访问的方法和系统。 描述的方法和系统实现重要性评估器模块，优先级评估器模块和抢占加载器模块中的一个或多个。 重要性评估者将重要性值分配给结构化媒体内容文件的不同部分。 重要性值用于确定是否从客户端缓存文件中删除结构化媒体内容文件的各个部分，为其他更重要的文件部分腾出空间。 优先级评估器将优先级值分配给结构化媒体内容文件的不同部分。 优先级值用于确定从服务器向客户端提供部分的顺序。 抢占式加载器预先有助于将结构化媒体内容文件的一个或多个部分提供给客户端，而不需要客户端特别请求。

公开(公告)号：US06807550B1

公开(公告)日：2004-10-19

申请号：US09453827

申请日：1999-12-01

申请人： Jin Li ,  Hong-Hui Sun ,  Hu Li ,  Qian Zhang ,  Xianoning Ling

发明人： Jin Li ,  Hong-Hui Sun ,  Hu Li ,  Qian Zhang ,  Xianoning Ling

IPC分类号： G06F1200

CPC分类号： G06F17/30067 ,  G06F17/30017 ,  Y10S707/99938 ,  Y10S707/99939 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99944 ,  Y10S707/99945 ,  Y10S707/99948 ,  Y10S707/99952 ,  Y10S707/99953

摘要： Methods and systems for providing random access of structured media content are described. One aspect provides a novel file structure or “Vfile”, and method of using the same, for organizing and managing portions of a structured media content file that are or can be downloaded from a content provider such as a multimedia content server. The Vfile is configured to emulate a server file structure that a server uses to store structured media content files. The Vfile is established at a client location when a client accesses a structured media content file and is used to buffer and cache structured media content file portions. In addition to having an infrastructure that emulates the server's file structure, the Vfile includes one or more media management tags. The tags are used by the client to manage a cache of structured media content file portions that are downloaded from the server. Exemplary tags include, but are not limited to (1) a validity tag that indicates whether a particular portion of a structured media content file is available in the Vfile cache, (2) a hit count tag that gives an indication of how many times a particular portion has been accessed, (3) an importance tag that gives a weight to the hit count and determines how long the portion can stay in cache, and (4) a lock tag that indicates whether or not to lock selected structured media content file portions in the Vfile. Cache management strategies make use of the management tags to ensure that relevant portions of the media file are maintained by the client for as long as they are needed. Those file portions that are needed, but which are not present in the Vfile, can be streamed to the client by the server while those file portions that are present are used to render a view for the user.

公开(公告)号：US07490104B2

公开(公告)日：2009-02-10

申请号：US10843544

申请日：2004-05-10

申请人： Jin Li ,  Hong-Hui Sun ,  Hu Li ,  Qian Zhang ,  Xianoning Ling

发明人： Jin Li ,  Hong-Hui Sun ,  Hu Li ,  Qian Zhang ,  Xianoning Ling

IPC分类号： G06F17/00

CPC分类号： G06F17/30067 ,  G06F17/30017 ,  Y10S707/99938 ,  Y10S707/99939 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99944 ,  Y10S707/99945 ,  Y10S707/99948 ,  Y10S707/99952 ,  Y10S707/99953

摘要： Methods and systems for providing random access of structured media content are described. One aspect provides a novel file structure or “Vfile”, and method of using the same, for organizing and managing portions of a structured media content file that are or can be downloaded from a content provider such as a multimedia content server. The Vfile is configured to emulate a server file structure that a server uses to store structured media content files. The Vfile is established at a client location when a client accesses a structured media content file and is used to buffer and cache structured media content file portions. In addition, the Vfile includes one or more media management tags. The tags are used by the client to manage a cache of structured media content file portions that are downloaded from the server.

摘要翻译： 描述了提供结构化媒体内容的随机访问的方法和系统。 一个方面提供了一种新颖的文件结构或“Vfile”及其使用方法，用于组织和管理可从诸如多媒体内容服务器的内容提供商进行或可以下载的结构化媒体内容文件的部分。 Vfile被配置为模拟服务器文件结构，服务器用于存储结构化媒体内容文件。 当客户端访问结构化媒体内容文件并且用于缓冲和缓存结构化媒体内容文件部分时，Vfile建立在客户端位置。 另外，Vfile包括一个或多个媒体管理标签。 客户端使用这些标签来管理从服务器下载的结构化媒体内容文件部分的缓存。

公开(公告)号：US08970080B2

公开(公告)日：2015-03-03

申请号：US12100535

申请日：2008-04-10

申请人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami

发明人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami

IPC分类号： H02K16/02 ,  H02K29/03 ,  H02K1/27

CPC分类号： H02K16/02 ,  H02K29/03

摘要： Having a stator core including a yoke, a plurality of inside teeth, and a plurality of outside teeth, an inside rotor, and an output rotor, the inside slot open angle/inside pole angle and the outside slot open angle/outside pole angle are determined so that the inside cogging torque due to rotation of the inside rotor and the outside cogging torque due to rotation of the outside rotor may cancel each other in inverted phases. Plural combinations are provided so that the amplitude of inside cogging torque and the amplitude of outside cogging torque due to rotation of outside rotor maybe approximate values in inverted phase, and the combination of the highest combined voltage value of the both induced voltage is selected.

摘要翻译： 具有包括轭，多个内齿和多个外齿的定子芯，内转子和输出转子，内槽开角/内极角和外槽开放角/外极角分别为 确定为使得由于内转子的旋转而产生的内齿槽转矩和由于外转子的旋转引起的外齿槽转矩在倒置相中彼此抵消。 提供了多个组合，使得内部齿槽转矩的振幅和由外部转子的旋转引起的外部齿槽转矩的振幅可以在反相中近似值，并且选择两个感应电压的最大组合电压值的组合。

公开(公告)号：US20110187222A1

公开(公告)日：2011-08-04

申请号：US12738848

申请日：2009-10-21

申请人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Hideaki Matsuo ,  Yuichiro Tashiro ,  Koichi Mitamura ,  Hideto Inoue ,  Reiji Tajima ,  Eiji Hataya

发明人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Hideaki Matsuo ,  Yuichiro Tashiro ,  Koichi Mitamura ,  Hideto Inoue ,  Reiji Tajima ,  Eiji Hataya

IPC分类号： H02K1/18 ,  H02K15/00 ,  H02K1/14

CPC分类号： H02K16/02 ,  H02K1/148 ,  Y10T29/49009

摘要： A dual-rotor motor provided with a stator having a stator core including a yoke, a plurality of teeth and a coil wound around the stator core, an inner rotor and an outer rotor, wherein the stator core includes an annular yoke component forming the yoke, and a plurality of tooth components forming the teeth. The stator core is made by fitting the tooth components individually into the annular yoke component in a manner that one ends of the tooth components protrude from the inner peripheral side of the annular yoke component and the other ends protrude from the outer peripheral side of the annular yoke component.

摘要翻译： 一种双转子电动机，其具有定子，该定子具有定子铁芯，该定子铁芯包括磁轭，多个齿和缠绕在定子铁芯上的线圈，内转子和外转子，其中定子铁心包括形成轭铁的环形磁轭部件 ，以及形成齿的多个牙齿部件。 定子铁心通过将齿部件分别安装到环形轭部件中，使得齿部件的一端从环形轭部件的内周侧突出，另一端从环形部件的外周侧突出， 轭组件。

公开(公告)号：US20100226802A1

公开(公告)日：2010-09-09

申请号：US12716382

申请日：2010-03-03

申请人： Kiyomi Kawamura ,  Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Yasushi Kato

发明人： Kiyomi Kawamura ,  Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Yasushi Kato

IPC分类号： F04D25/06 ,  H02K16/02

CPC分类号： H02K16/02 ,  F04D13/0666 ,  F04D13/0673 ,  H02K7/14

摘要： A fan motor includes a pair of fans axially mounted to both sides of a rotary shaft of the motor. The motor includes an inner rotor placed inside a stator wound with windings and an outer rotor placed outside the stator. The motor thus has a dual-rotor structure where the inner rotor and the outer rotor are held such that both the rotors can rotate on the rotary shaft.

摘要翻译： 风扇电动机包括轴向安装在电动机的旋转轴的两侧的一对风扇。 电动机包括放置在绕有绕组的定子内部的内转子和放置在定子外部的外转子。 因此，电动机具有双转子结构，其中内转子和外转子被保持成使得两个转子可以在旋转轴上旋转。

公开(公告)号：US20140001906A1

公开(公告)日：2014-01-02

申请号：US13981565

申请日：2012-01-25

申请人： Hu Li ,  Yuichi Yoshikawa ,  Yuichiro Tashiro ,  Hideaki Matsuo

发明人： Hu Li ,  Yuichi Yoshikawa ,  Yuichiro Tashiro ,  Hideaki Matsuo

IPC分类号： H02K1/22

CPC分类号： H02K1/22 ,  H02K1/146 ,  H02K1/276 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

摘要： A brushless motor capable of high speed rotation by field weakening operation is designed to reduce torque ripple at a maximum load point with current phase advance so that the torque ripple at the maximum load point is 1 to 1.5 times the torque ripple at a low speed load point.

摘要翻译： 通过弱磁操作能够高速旋转的无刷电动机被设计为在电流相位提前的最大负载点处减小转矩脉动，使得最大负载点处的转矩脉动是低速负载下的转矩波动的1至1.5倍 点。

公开(公告)号：US08405270B2

公开(公告)日：2013-03-26

申请号：US12598840

申请日：2008-03-21

申请人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Hiroki Sato

发明人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Hiroki Sato

IPC分类号： H02K21/12

CPC分类号： H02K1/276 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

摘要： Supposing a straight line joining rotation center O of a rotor and a magnetic pole middle, that is, a middle of permanent magnets (25) to be a d-axis, and a straight line joining rotation center O and an intermediate point of mutually adjacent permanent magnets (25) to be a q-axis, mutually adjacent arcs A1 and A2 are composed such that radius R1 of arc A1 at the d-axis side is larger than radius R2 of arc A2 at the q-axis side, and that, at intersection point β of mutual arcs A1 and A2, angle α of tangent u of arc A2 at the q-axis side with respect to tangent t of arc A1 at the d-axis side is set by −3 degrees≦α≦2 degrees.

摘要翻译： 假设连接转子的旋转中心O和磁极中间的直线，即作为d轴的永久磁铁（25）的中间，以及连接旋转中心O的直线和相邻的中间点 作为q轴的永久磁铁（25）相互相邻的弧A1和A2构成为使d轴侧的弧A1的半径R1比q轴侧的弧A2的半径R2大， 在交点＆bgr 的相互电弧A1和A2，在q轴侧的弧A2的切线u相对于d轴侧的弧A1的切线t的角度α被设定为-3度＆lt; 1lE;α＆nlE; 2度。

公开(公告)号：US08350433B2

公开(公告)日：2013-01-08

申请号：US13364653

申请日：2012-02-02

申请人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami

发明人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami

IPC分类号： H02K21/12

CPC分类号： H02K21/16 ,  H02K1/278 ,  H02K1/2786 ,  H02K21/222 ,  H02K29/03

摘要： It comprises stator including stator core having yoke and a plurality of teeth protruded from yoke, which is formed with slots between adjacent teeth, and rotor having rotor core and permanent magnet formed with a plurality of magnetic poles, which confronts tip ends of teeth via gaps, wherein rotor core is formed by rotor core materials circumferentially equally divided into the predetermined number of divisions, and the least common multiple being N for the number of slots and the number of magnetic poles and the least common multiple being M for the number of slots and the number of divisions, then N is equal to M.

摘要翻译： 它包括定子，该定子包括具有磁轭的定子铁心和从磁轭突出的多个齿，其在相邻的齿之间形成有槽，转子具有形成有多个磁极的转子芯和永磁体，该多个磁极通过间隙 ，其中转子芯由周向等分成预定数量的分割的转子芯材料形成，并且对于槽数，最小公倍数为N个，并且对于槽数，最小公倍数为N个，磁极数和最小公倍数为M 和分割数，则N等于M.

公开(公告)号：US20120286616A1

公开(公告)日：2012-11-15

申请号：US13574531

申请日：2011-03-07

申请人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Hideaki Matsuo ,  Yuichiro Tashiro

发明人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Hideaki Matsuo ,  Yuichiro Tashiro

IPC分类号： H02K1/30

CPC分类号： H02K21/029

摘要： A clutch mechanism moving together with an actuator allows coupling or decoupling an inner rotor to or from a power shaft, thereby controlling a rotation angle. This structure allows a polarity of a magnetic pole of the inner rotor to be the same as that of an opposing magnetic pole of an outer rotor when the motor is driven at a low rpm, so that magnetic fluxes inter-linking with windings can be increased, which results in greater torque. When the motor is driven at a high rpm, the structure allows the polarity of the magnetic pole of the inner rotor to be different from that of the opposing magnetic pole of the outer rotor, so that an amount of leakage flux is increased, and the magnetic fluxes inter-linking with the winding are decreased. As a result, an induction voltage is lowered and a high rpm range is widened.

摘要翻译： 与致动器一起移动的离合器机构允许将内转子与动力轴联接或解耦，由此控制旋转角度。 当电动机以低转速驱动时，该结构允许内转子的磁极的极性与外转子的相对磁极的极性相同，使得可以增加与绕组相互联系的磁通量 ，这导致更大的扭矩。 当电动机以高转速驱动时，该结构允许内转子的磁极的极性与外转子的相对磁极的极性不同，使得漏磁通量增加， 与绕组相互连接的磁通量减少。 结果，感应电压降低，高转速范围变宽。