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61. 发明授权

US06624699B2 Current-controlled CMOS wideband data amplifier circuits 有权
公开(公告)号：US06624699B2
公开(公告)日：2003-09-23
申请号：US10028806
申请日：2001-10-25
申请人： Guangming Yin , Jun Cao
发明人： Guangming Yin , Jun Cao
IPC分类号： H03F345
CPC分类号： H03F1/14 , H03F1/483 , H03F2203/45018 , H03F2203/45512 , H03F2203/45554 , H03F2203/45714
摘要： Expansion of the bandwidth of a wideband CMOS data amplifier is accomplished using various combinations of shunt peaking, series peaking, and miller capacitance cancellation. These various combinations are employed in any of the amplifier input stage, in intermediate stages, or in the last stage.

62. 发明授权

US06542043B1 All PMOS fully differential voltage controlled oscillator 有权
标题翻译：所有PMOS全差分压控振荡器
公开(公告)号：US06542043B1
公开(公告)日：2003-04-01
申请号：US09978347
申请日：2001-10-16
申请人： Jun Cao
发明人： Jun Cao
IPC分类号： H03B512
CPC分类号： H03L7/099 , H01L27/0617 , H01L27/0928 , H03B5/1209 , H03B5/1228 , H03B5/1243
摘要： All PMOS (p channel metal oxide semiconductor) fully differential voltage controlled oscillator (VCO). A fully differential implementation within the present invention provides for a very effective rejection of common mode noises. In addition, the PMOS implementation of the present invention allows for a substantial reduction in 1/f noise. The PMOS fully differential VCO may be employed within phase locked loops (PLLs) and other applications that require a very clean signal (with very low noise) and that must be operable at very high frequencies. The present invention enables a very compact design, thereby minimizing extraneous noise pickup. The device may be over-driven with a higher power supply than is commonly used in prior art VCOs; the over-driving provides for a higher transconductance gm from the PMOS device enabling higher gain. A center-tapped inductor is shunted to ground in a manner that does not reduce the inductor's quality factor Q.
摘要翻译：所有PMOS（p沟道金属氧化物半导体）全差分压控振荡器（VCO）。本发明中的完全差分实现提供了对共模噪声的非常有效的抑制。此外，本发明的PMOS实现允许1 / f噪声的显着降低。 PMOS全差分VCO可以用在需要非常干净的信号（具有非常低的噪声）并且必须在非常高的频率下操作的锁相环（PLL）和其它应用中。本发明能够实现非常紧凑的设计，从而使外来噪声拾取最小化。该器件可能以比现有技术的VCO中通常使用的更高的电源进行过驱动; 过驱动从PMOS器件提供更高的跨导gm，实现更高的增益。中心抽头电感器以不会降低电感器质量因子Q的方式分流到地。

63. 发明授权

US06519311B2 Overflow detector for FIFO 有权
公开(公告)号：US06519311B2
公开(公告)日：2003-02-11
申请号：US10104870
申请日：2002-03-21
申请人： Jun Cao
发明人： Jun Cao
IPC分类号： G06M300
CPC分类号： G11C19/287 , G11C19/28
摘要： The present invention provides an overflow detector for a FIFO. The FIFO includes a plurality of registers each having an input and an output, a plurality of write signals each respectively coupled to a clock, one of the plurality of registers, and a plurality of read switches each respectively coupled to an output of one of the plurality of registers, each of the plurality of read switches being controlled by a respective read signal. The overflow detector includes a plurality of clocked registers each of which is coupled to receive a write signal and its corresponding read signal, wherein each clocked register records a read signal and is clocked by the corresponding write signal.

64. 发明授权

US06396894B2 Overflow detector for FIFO 有权
公开(公告)号：US06396894B2
公开(公告)日：2002-05-28
申请号：US09772781
申请日：2001-01-29
申请人： Jun Cao
发明人： Jun Cao
IPC分类号： G06M300
CPC分类号： G11C19/287 , G11C19/28
摘要： The present invention provides an overflow detector for a FIFO. The FIFO includes a plurality of registers each having an input and an output, a plurality of write signals each respectively coupled to a clock, one of the plurality of registers, and a plurality of read switches each respectively coupled to an output of one of the plurality of registers, each of the plurality of read switches being controlled by a respective read signal. The overflow detector includes a plurality of clocked registers each of which is coupled to receive a write signal and its corresponding read signal, wherein each clocked register records a read signal and is clocked by the corresponding write signal.

65. 发明授权

US06246256B1 Quantized queue length arbiter 有权
标题翻译：量化队列长度仲裁器
公开(公告)号：US06246256B1
公开(公告)日：2001-06-12
申请号：US09450527
申请日：1999-11-29
申请人： Yao-Ching Liu , William Dai , Jason Chao , Jun Cao
发明人： Yao-Ching Liu , William Dai , Jason Chao , Jun Cao
IPC分类号： G06F738
CPC分类号： G06F5/065 , G06F13/1642 , G06F13/364
摘要： A queue length arbiter system provides for selecting from a plurality of N queues requiring access to a resource. The system includes: an arbitration circuit; and a plurality of weight circuits each being associated with a corresponding one of the queues, and being operative to store a corresponding weight count value, and also being operative to initialize the corresponding weight count value to a corresponding initial weight value determined based on a length value indicative of a number of data portions enqueued at the corresponding queue at an initial time, and being further operative to decrease the corresponding weight count value in response to a corresponding one of a plurality of grant signals, and also being operative to generate a corresponding one of a plurality of weight count signals, the corresponding weight count signal carrying the corresponding weight count value. The arbitration circuit includes: a plurality of weight checking circuits associated with corresponding ones of the queues, each checking circuit being operative to generate a corresponding one of a plurality of select signals indicative of a corresponding selected one of the queues in response to each of the weight count signals, the corresponding selected queue being determined based on the weight count values; and a resolving circuit responsive to each of the select signals, and being operative to choose one of the weight checking circuits, and also being operative to provide the grant signals, the grant signals indicating a granted queue that is selected by the chosen weight circuit.
摘要翻译：队列长度仲裁系统提供从需要访问资源的多个N队列中进行选择。该系统包括：仲裁电路; 以及多个加权电路，每个加权电路各自与相应的一个队列相关联，并且可操作以存储对应的权重计数值，并且还可操作以将相应的权重计数值初始化为基于长度确定的对应的初始权重值指示在初始时间在对应队列中入队的数据部分的数量的值，并且还可操作以响应于多个授权信号中的相应一个来减少对应的权重计数值，并且还可操作以产生对应的多个重量计数信号中的一个，相应的重量计数信号携带相应的重量计数值。仲裁电路包括：与对应的队列相关联的多个加权检查电路，每个检查电路可操作以响应于每个所述队列中的每一个产生指示对应的所选择的一个队列的多个选择信号中的对应的一个重量计数信号，基于重量计数值确定对应的选择队列; 以及响应于每个选择信号的解析电路，并且可操作以选择权重检验电路中的一个，并且还可操作以提供授权信号，所述授权信号指示由所选权重电路选择的授权队列。

66. 发明申请

US20210403884A1 Diacylglycerol Acyltransferase 1 and Application Thereof in Production of Triacylglycerol 有权
公开(公告)号：US20210403884A1
公开(公告)日：2021-12-30
申请号：US17469899
申请日：2021-09-09
申请人： Haiqin Chen , Wei Chen , Xin Tang , Jun Cao , Jianxin Zhao , Yongquan Chen , Hao Zhang
发明人： Haiqin Chen , Wei Chen , Xin Tang , Jun Cao , Jianxin Zhao , Yongquan Chen , Hao Zhang
IPC分类号： C12N9/10 , C12P7/64
摘要： Disclosed is a diacylglycerol acyltransferase 1, a recombinant Saccharomyces cerevisiae containing the diacylglycerol acyltransferase 1, and application thereof in production of triacylglycerol. The diacylglycerol acyltransferase 1 of the invention has a function of catalyzing synthesis of triacylglycerol. After the recombinant Saccharomyces cerevisiae containing the diacylglycerol acyltransferase 1 of the invention is subjected to induction culture for 48 h, the content of total fatty acid and triacylglycerol in the recombinant Saccharomyces cerevisiae containing the diacylglycerol acyltransferase 1 can be respectively increased by 1.94 folds and 12.09 folds as compared with those of Saccharomyces cerevisiae without the recombinant diacylglycerol acyltransferase 1. The instant invention provides a method for improving the ability of microorganisms to produce polyunsaturated fatty acids (PUFAs) by means of genetic engineering.

67. 发明授权

US08819778B2 Method and system for switching station in centralized WLAN when WPI is performed by access controller 有权
标题翻译： WPI由接入控制器执行时，集中式WLAN切换站的方法和系统
公开(公告)号：US08819778B2
公开(公告)日：2014-08-26
申请号：US13320469
申请日：2009-12-07
申请人： Zhiqiang Du , Jun Cao , Manxia Tie , Xiaolong Lai , Zhenhai Huang
发明人： Zhiqiang Du , Jun Cao , Manxia Tie , Xiaolong Lai , Zhenhai Huang
IPC分类号： H04L29/06 , H04W12/06
CPC分类号： H04W36/0038 , H04L41/0803 , H04L63/205 , H04W12/06 , H04W92/12
摘要： The embodiment of the present invention relates to a method and a system for switching station in centralized wireless local area network (WLAN) when the WLAN privacy infrastructure (WPI) is performed by an access controller (AC). The method includes: step 1: the station re-associates with the AC through the destination wireless terminal point (WTP); step 2: the AC informs the associated WTP to delete the station; step 3: the AC informs the destination WTP to join the station. The invention implements the operation of joining station and deleting station between the AC and the WTP based on the control and provisioning of wireless access points protocol (CAPWAP) control message during the process of switching station. Therefore, the invention can quickly and safely implement the station switching among the WTPs under the same AC.
摘要翻译：本发明的实施例涉及一种当WLAN隐私基础设施（WPI）由接入控制器（AC）执行时，在集中式无线局域网（WLAN）中切换台站的方法和系统。该方法包括：步骤1：站通过目的无线终端（WTP）与AC重新关联; 步骤2：AC通知相关的WTP删除站; 步骤3：AC通知目的地WTP加入车站。本发明基于在交换台处理过程中的无线接入点协议（CAPWAP）控制消息的控制和提供，实现了加入站和删除站之间的AC和WTP的操作。因此，本发明可以在同一AC下的WTP之间快速，安全地实现站切换。

68. 发明授权

US08755528B2 Method and system for establishing secure connection between stations 有权
公开(公告)号：US08755528B2
公开(公告)日：2014-06-17
申请号：US13516257
申请日：2010-05-21
申请人： Li Ge , Jun Cao , Manxia Tie , Qin Li , Xiaolong Lai
发明人： Li Ge , Jun Cao , Manxia Tie , Qin Li , Xiaolong Lai
IPC分类号： G06F21/00
摘要： A method and system for establishing a secure connection between stations are disclosed. The method includes that: 1) a switch device receives an inter-station key request packet sent by a first user terminal; 2) the switch device generates an inter-station key, constructs an inter-station key announcement packet and sends it to a second user terminal; 3) the switch device receives an inter-station key announcement response packet sent by the second user terminal; 4) the switch device constructs an inter-station key announcement response packet and sends it to the first user terminal; 5) the switch device receives an inter-station key announcement response packet sent by the first user terminal. The switch device establishes an inter-station key for the two stations which are connected to the switch device directly, by which the embodiments of the present invention ensure the confidentiality and integrality of user data between the stations.

69. 发明授权

US08752126B2 Method for enhancing the security of the multicast or broadcast system 有权
标题翻译：提高组播或广播系统安全性的方法
公开(公告)号：US08752126B2
公开(公告)日：2014-06-10
申请号：US13059547
申请日：2009-08-20
申请人： Liaojun Pang , Jun Cao , Manxia Tie
发明人： Liaojun Pang , Jun Cao , Manxia Tie
IPC分类号： G06F7/04 , G06F17/30 , G06F15/16 , H04L29/06
CPC分类号： H04W12/04 , H04L9/085 , H04L9/3073 , H04L63/062 , H04L2209/601
摘要： A method for enhancing the security of the multicast or broadcast system comprises the following steps: after having established the system parameter, the base station receives the register request message transmitted by the terminal, and the register request message carries the device identity information of the terminal; the base station registers the terminal according to the register request message and transmits the authorization key to the terminal after successful registration. By the base station establishing the specific system parameter, generating and awarding the corresponding terminal's key based on the parameter, the embodiment of the present invention can construct a secure network system of multicast or broadcast effectively and solve the security problem of the multicast or broadcast from the base station to the terminal in the network system.
摘要翻译：一种用于增强多播或广播系统的安全性的方法包括以下步骤：在建立了系统参数之后，基站接收终端发送的注册请求消息，并且注册请求消息携带终端的设备身份信息 ; 基站根据注册请求消息注册终端，并在成功注册后向终端发送授权密钥。由基站建立具体的系统参数，根据参数生成和授予相应的终端密钥，本发明的实施例可以有效构建安全的组播或广播网络系统，解决组播或广播的安全问题基站到终端在网络系统中。

70. 发明授权

US08631232B2 Wireless personal area network accessing method 有权
标题翻译：无线个域网访问方式
公开(公告)号：US08631232B2
公开(公告)日：2014-01-14
申请号：US12863272
申请日：2009-01-14
申请人： Yuelei Xiao , Jun Cao , Xiaolong Lai , Zhenhai Huang , Bianling Zhang , Zhiqiang Qin , Qizhu Song
发明人： Yuelei Xiao , Jun Cao , Xiaolong Lai , Zhenhai Huang , Bianling Zhang , Zhiqiang Qin , Qizhu Song
IPC分类号： H04L29/00
CPC分类号： H04W12/04 , H04L63/205 , H04W12/06
摘要： A wireless personal area network accessing method is provided, the method includes that: a coordinator broadcasts a beacon frame, the beacon frame includes the information about whether the coordinator sends an authentication requirement, the beacon frame also includes the authentication supported by the coordinator and key management package when a device receipts the authentication requirement, the device receives the beacon frame, the authentication between the coordinator and the device is made by using a authentication method corresponding to the authentication supported by the coordinator and key management package, when the device determines that the coordinator and the device is directly made according to the authentication result, or the association between the coordinator and the device is made after making session key negotiation.
摘要翻译：提供了无线个人区域网络访问方法，该方法包括：协调器广播信标帧，信标帧包括关于协调器是否发送认证要求的信息，信标帧还包括由协调器和密钥支持的认证管理包，当设备收到认证要求时，设备收到信标帧，协调器和设备之间的认证是通过使用与协调器和密钥管理包所支持的认证相对应的认证方法进行的，当设备确定协调器和设备根据认证结果直接进行，或者在进行会话密钥协商之后进行协调器与设备之间的关联。

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