公开(公告)号：US08411630B2

公开(公告)日：2013-04-02

申请号：US12721407

申请日：2010-03-10

Applicant: Wendong Hu

Inventor： Wendong Hu

IPC: H04W4/00 ,  H04B7/26 ,  H04L12/413 ,  H04J3/06

CPC classification number: H04W72/0426 ,  H04W16/14 ,  H04W72/0406 ,  H04W74/0808

Abstract: A method and system by which a base station in a Wireless Regional Area Network (WRAN), and more generally a transceiver in a cognitive radio (CR) system, can communicate with other transceivers to fairly share transmission and reception of scheduled use (“occupancy”) of frames on a single channel within a frame-based, on demand spectrum contention system. The method and system disclose how the base station can initiate contentions for an increased share of the frames available in the following superframe of the CR system. The method and system assure fair and efficient access to the transmission channel by a random number based contention process.

Abstract translation: 无线区域网络（WRAN）中的基站，以及更一般地，在认知无线电（CR）系统中的收发机）可以与其他收发器通信的方法和系统，以公平地共享预定使用（占用）的传输和接收， 在基于帧的按需频谱争用系统中的单个信道上的帧。 该方法和系统公开了基站如何发起对CR系统的以下超帧中可用的帧的增加份额的争用。 该方法和系统通过基于随机数的争用过程来确保对传输信道的公平和有效的访问。

公开(公告)号：US20130063173A1

公开(公告)日：2013-03-14

申请号：US13615368

申请日：2012-09-13

Applicant: John H. Zhang ,  Laertis Economikos ,  Robin Van Den Nieuwenhuizen ,  Wei-Tsu Tseng

Inventor： John H. Zhang ,  Laertis Economikos ,  Robin Van Den Nieuwenhuizen ,  Wei-Tsu Tseng

IPC: G01R1/04

CPC classification number: H01L22/20 ,  H01L22/14 ,  H01L24/05 ,  H01L2924/014 ,  H01L2924/14 ,  H01L2924/00

Abstract: A method that includes forming a first level of active circuitry on a substrate, forming a first probe pad electrically connected to the first level of active circuitry where the first probe pad having a first surface, contacting the first probe pad with a probe tip that displaces a portion of the first probe pad above the first surface, and performing a chemical mechanical polish on the first probe pad to planarize the portion of the first probe pad above the first surface. The method also includes forming a second level of active circuitry overlying the first probe pad, forming a second probe pad electrically connected to the second level of active circuitry, contacting the second probe pad with a probe tip that displaces a portion of the probe pad, and chemically mechanically polishing the second probe pad to remove the portion displaced.

Abstract translation: 一种方法，其包括在衬底上形成第一电平的有源电路，形成电连接到所述第一电平有源电路的第一探针焊盘，其中所述第一探针焊盘具有第一表面，所述第一探针焊盘与所述第一探针焊盘接触， 所述第一探针焊盘的位于所述第一表面上方的部分，以及在所述第一探针焊盘上执行化学机械抛光，以在所述第一表面上方平坦化所述第一探针焊盘的所述部分。 该方法还包括形成覆盖在第一探针焊盘上的第二电平有源电路，形成电连接到第二电平有源电路的第二探针焊盘，使第二探针焊盘与移位探针焊盘的一部分的探针尖接触， 以及化学机械地抛光第二探针垫以除去所移动的部分。

公开(公告)号：US08369257B2

公开(公告)日：2013-02-05

申请号：US12494776

申请日：2009-06-30

Applicant: Liwen Chu ,  George A. Vlantis

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04H20/71 ,  H04B7/212 ,  H04B7/00 ,  H04L12/413

CPC classification number: H04W74/0816 ,  H04L12/1868 ,  H04W84/12

Abstract: A reliable and deterministic video communication protocol is provided. In one aspect, a method of transmitting data, audio or video frames in a basic service set having a plurality of stations in a wireless local area network transmits a transmit opportunity information element to reserve a transmit opportunity time interval. The method further transmits the data, audio or video frames to a number of the stations in the basic service set during the reserved transmit opportunity time interval. In another aspect, a method of transmitting data, audio or video frames in a basic service set having a plurality of stations in a wireless local area network first transmits protection frames to reserve a time interval, then transmits frames during the reserved time interval or during a non-reserved time interval. In yet another aspect, a method of transmitting data, audio or video frames in a basic service set having a plurality of stations in a wireless local area network utilizes acknowledgement frames from the plurality of stations to acknowledge the transmission. A wireless communication device is also provided.

Abstract translation: 提供可靠和确定性的视频通信协议。 一方面，在无线局域网中具有多个站的基本业务集中发送数据，音频或视频帧的方法，发送发送机会信息单元，以保留发送机会时间间隔。 该方法还在保留的发送机会时间间隔期间将数据，音频或视频帧发送到基本服务集中的多个站。 在另一方面，一种在无线局域网中具有多个站的基本业务集中发送数据，音频或视频帧的方法首先发送保护帧以保留时间间隔，然后在预留的时间间隔期间或在 非预留时间间隔。 在另一方面，一种在无线局域网中具有多个站的基本业务集中传输数据，音频或视频帧的方法利用来自多个站的确认帧来确认传输。 还提供了一种无线通信设备。

公开(公告)号：US08351865B2

公开(公告)日：2013-01-08

申请号：US12970797

申请日：2010-12-16

Applicant: Liwen Chu ,  George A. Vlantis

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04B1/00 ,  H04K3/00

CPC classification number: H04W52/40 ,  H04W52/143 ,  H04W52/367

Abstract: Three alternative methods of controlling transmit power in a basic service set (BSS) including a plurality of stations that have successfully synchronized with an access point include providing each BSS with one transmit power limit that is not more than the lowest one of the transmit power limits of all of its operating channels, providing each BSS with one transmit power limit that is fixed for physical layer convergence procedure (PLCP) protocol data units (PPDU) with each channel bandwidth, or providing each BSS with one transmit power limit that is fixed for each 80 MHz channel.

Abstract translation: 在包括已经与接入点成功同步的多个站的基本业务集（BSS）中控制发射功率的三种替代方法包括为每个BSS提供不大于发射功率极限中最低的一个的发射功率限制 为每个BSS提供一个针对每个信道带宽的物理层融合过程（PLCP）协议数据单元（PPDU）固定的发送功率限制，或为每个BSS提供固定的一个发射功率限制 每个80 MHz通道。

公开(公告)号：US08351457B2

公开(公告)日：2013-01-08

申请号：US13351153

申请日：2012-01-16

Applicant: Liwen Chu ,  Mario Valerio Filauro

Inventor： Liwen Chu ,  Mario Valerio Filauro

IPC: H04L12/413

CPC classification number: H04W74/0808 ,  H04W72/12

Abstract: A method for providing a priority-based, low-collision distributed coordination function (DCF) in a wireless network is provided. The network includes an access point and a plurality of stations. The method includes receiving at a first station a super-frame from the access point. The super-frame is operable to define a service period for each of the stations. A priority for the first station is determined based on the super-frame. A back-off time is selected for the first station based on the priority.

Abstract translation: 提供了一种用于在无线网络中提供基于优先级的低冲突分布式协调功能（DCF）的方法。 网络包括接入点和多个站。 该方法包括在第一站从接入点接收超帧。 超帧可操作以定义每个站的服务周期。 基于超帧确定第一站的优先级。 基于优先级为第一站选择退避时间。

公开(公告)号：US20130001786A1

公开(公告)日：2013-01-03

申请号：US13171657

申请日：2011-06-29

Applicant: Brett H. Engel ,  Lindsey Hall ,  David F. Hilscher ,  Randolph F. Knarr ,  Steven R. Soss ,  Jin Z. Wallner

Inventor： Brett H. Engel ,  Lindsey Hall ,  David F. Hilscher ,  Randolph F. Knarr ,  Steven R. Soss ,  Jin Z. Wallner

IPC: H01L21/28 ,  H01L23/48

CPC classification number: H01L23/528 ,  H01L21/76816 ,  H01L21/76895 ,  H01L21/76897 ,  H01L23/5226 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method of forming overlapping contacts in a semiconductor device includes forming a first contact in a dielectric layer; etching the dielectric layer to form a recess adjacent to the first contact and removing a top portion of the first contact while etching the dielectric layer, wherein a bottom portion of the first contact remains in the dielectric layer after the recess is formed in the dielectric layer; and forming a second contact in the recess adjacent to the bottom portion of the first contact and on top of a top surface of the bottom portion of the first contact.

Abstract translation: 在半导体器件中形成重叠触点的方法包括在电介质层中形成第一触点; 蚀刻电介质层以形成与第一接触相邻的凹部，并且在蚀刻介电层的同时去除第一接触的顶部，其中在电介质层中形成凹部之后第一接触的底部保留在电介质层中 ; 以及在与所述第一接触件的底部相邻的所述凹部中形成第二触点，并且在所述第一接触件的底部的顶表面的顶部上形成第二接触。

公开(公告)号：US08336148B2

公开(公告)日：2012-12-25

申请号：US12803974

申请日：2010-07-12

Applicant: John H. Zhang

Inventor： John H. Zhang

IPC: B08B7/00

CPC classification number: B24B37/345 ,  B24B37/042 ,  B24B37/046 ,  B24B49/10 ,  H01L21/02074 ,  H01L21/31053 ,  H01L21/3212 ,  H01L22/12 ,  H01L22/20

Abstract: A system and method for processing a wafer includes a charge neutralization system. The wafer processing system includes a wafer measuring device that can measure characteristics of a surface of the semiconductor wafer. One or more wafer processing stations perform a chemical mechanical polish (CMP) process on the wafer surface. A desica cleaning station can clean and dry the semiconductor wafer. The wafer processing system further includes a charge neutralizing device that can alter a surface charge of the wafer surface.

Abstract translation: 用于处理晶片的系统和方法包括电荷中和系统。 晶片处理系统包括可以测量半导体晶片的表面的特性的晶片测量装置。 一个或多个晶片处理站在晶片表面上执行化学机械抛光（CMP）工艺。 除尘器清洁站可以清洁和干燥半导体晶片。 晶片处理系统还包括能够改变晶片表面的表面电荷的电荷中和装置。

公开(公告)号：US20120313153A1

公开(公告)日：2012-12-13

申请号：US13494973

申请日：2012-06-12

Applicant: John H. ZHANG ,  Lawrence A. CLEVENGER ,  Carl J. RADENS ,  Yiheng XU

Inventor： John H. ZHANG ,  Lawrence A. CLEVENGER ,  Carl J. RADENS ,  Yiheng XU

IPC: H01L29/78 ,  H01L21/28

CPC classification number: H01L29/7834 ,  H01L21/28518 ,  H01L21/28562 ,  H01L21/288 ,  H01L21/2885 ,  H01L21/31116 ,  H01L21/76816 ,  H01L21/76819 ,  H01L21/76834 ,  H01L21/7684 ,  H01L21/76885 ,  H01L21/76897 ,  H01L21/823842 ,  H01L21/823871 ,  H01L29/1054 ,  H01L29/165 ,  H01L29/41783 ,  H01L29/495 ,  H01L29/665 ,  H01L29/6659

Abstract: According to one embodiment of the invention, the gate contact is formed by a selective deposition on the gate electrode. One acceptable technique for the selective deposition is by plating. Plating is one process by which a metal structure, such as a gate contact, may be formed directly on the gate electrode. The plating is carried out by immersing the semiconductor die in a plating solution with the gate electrode exposed. The gate contact is plated onto the gate electrode and thus is ensured of being fully aligned exactly to the gate electrode. After this, the appropriate dielectric layers are formed adjacent the gate contact and over the source and drain to ensure that the gate electrode is electrically isolated from other components of the transistor.

Abstract translation: 根据本发明的一个实施例，通过在栅电极上的选择性沉积形成栅极接触。 用于选择性沉积的一种可接受的技术是通过电镀。 电镀是可以直接在栅电极上形成诸如栅极接触的金属结构的一个过程。 通过将半导体管芯浸渍在露出电极的电镀液中来进行电镀。 栅极接触电镀在栅电极上，因此确保与栅电极完全对准。 之后，在栅极接触点和源极和漏极之间形成适当的电介质层，以确保栅电极与晶体管的其它部件电隔离。

公开(公告)号：US08325765B2

公开(公告)日：2012-12-04

申请号：US12616027

申请日：2009-11-10

Applicant: Wendong Hu

Inventor： Wendong Hu

IPC: H04J3/24

CPC classification number: H04W16/14 ,  H04L5/0053 ,  H04L27/2602 ,  H04W8/005 ,  H04W48/10 ,  H04W92/02

Abstract: A coexistence communications method for use between wireless networks includes adopting a super-frame structure for use in a wireless network having a plurality of frames, wherein a first frame includes a super-frame preamble, a super-frame control header, a data portion, and a regular self-coexistence window, an intermediate frame includes an OFDM symbol, a data portion, and a regular self-coexistence window, and a last frame includes an OFDM symbol, a data portion, and a joining self-coexistence window, using the self-coexistence windows to exchange inter-wireless network co-existence messages, and using a last reserved self-coexistence window to announce intra-wireless network negotiation decisions.

Abstract translation: 一种在无线网络之间使用的共存通信方法包括采用具有多个帧的无线网络中使用的超帧结构，其中第一帧包括超帧前导码，超帧控制报头，数据部分， 和规则的自共享窗口，中间帧包括OFDM符号，数据部分和规则的自共享窗口，最后一帧包括OFDM符号，数据部分和加入的自共享窗口，使用 交换无线网络共存消息的自共享窗口，以及使用最后保留的自共享窗口来通知无线内网络协商决策。

公开(公告)号：US08324825B2

公开(公告)日：2012-12-04

申请号：US12189411

申请日：2008-08-11

Applicant: Jianwen Shao ,  Clifford J. Ortmeyer, II

Inventor： Jianwen Shao ,  Clifford J. Ortmeyer, II

IPC: G05F1/00

CPC classification number: H05B33/0818 ,  H05B33/0815 ,  H05B33/0851

Abstract: In a method for producing a control signal for regulating a drive current for driving an LED, a current through the LED is sensed, wherein the LED is driven by a power converter output, and wherein an output voltage of the power converter is proportionately controlled by a control signal. Next, a power supply voltage is sensed. The control signal is produced for the power converter, wherein the control signal is proportional to a difference between a reference voltage and the current through the LED. The control signal is then offset in response to the power supply voltage to reduce the current through the LED as the power supply voltage drops.

Abstract translation: 在用于产生用于调节用于驱动LED的驱动电流的控制信号的方法中，检测通过LED的电流，其中LED由功率转换器输出驱动，并且其中功率转换器的输出电压成比例地由 一个控制信号。 接下来，感测到电源电压。 为功率转换器产生控制信号，其中控制信号与参考电压和通过LED的电流之间的差成比例。 然后响应于电源电压来偏移控制信号，以随着电源电压下降而减小通过LED的电流。