公开(公告)号：US20090017768A1

公开(公告)日：2009-01-15

申请号：US12235757

申请日：2008-09-23

Applicant: Aleksej Makarov

Inventor： Aleksej Makarov

IPC: H04B17/00

CPC classification number: H04L27/2332 ,  H04L27/2275 ,  H04L2027/0065 ,  H04L2027/0087

Abstract: Counter-clockwise and clockwise quadrant transitions are detected and accumulated with respect to a received complex signal over a certain time period. These transitions may then be compared in order to obtain information indicative of both a magnitude and phase of a carrier frequency error for the received signal. Additionally, zero-crossings of the received complex signal over the same certain time period are detected and accumulated. The accumulated crossings provide information indicative of frequency offset magnitude. The determined magnitude and phase of the frequency error may then be used to adjust a local oscillator frequency to provide for improved receiver performance.

Abstract translation: 在一段时间内相对于接收的复合信号检测并累积逆时针和顺时针象限转换。 然后可以比较这些转变，以获得指示接收信号的载波频率误差的幅度和相位的信息。 此外，检测并累积在相同的特定时间段内接收到的复信号的零交叉。 累积的交叉点提供指示频率偏移幅度的信息。 然后可以使用所确定的频率误差的幅度和相位来调整本地振荡器频率以提供改进的接收机性能。

公开(公告)号：US20090003298A1

公开(公告)日：2009-01-01

申请号：US12207148

申请日：2008-09-09

Applicant: Liwen Chu ,  George A. Vlantis

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04Q7/24

CPC classification number: H04W40/02 ,  H04L45/66 ,  H04W84/18

Abstract: A six field address scheme identifies both the originating point and the endpoint of a data frame enabling multiple hop forwarding through a plurality of intermediate mesh points in a wireless mesh network. Data frames originating or ending at a point outside of the wireless mesh network access the wireless network at a mesh access point using a legacy address scheme. The legacy address schemes are converted to a six address scheme using a proxy address table at the access point. Each mesh access point includes not only a routing table but a proxy address table as well as enabling the mesh access point, and/or mesh portal points, to convert address schemes having less than six address fields to the six field format. Subsequent to the conversion, mesh points within the wireless mesh network need only the routing table to facilitate the forwarding of the data frame.

Abstract translation: 六字段地址方案识别通过无线网状网络中的多个中间网格点进行多跳转发的数据帧的始发点和端点。 在无线网状网络之外的点处发起或结束的数据帧使用遗留地址方案在网状接入点处接入无线网络。 遗留地址方案使用访问点处的代理地址表转换为六地址方案。 每个网格接入点不仅包括路由表，而且包括代理地址表，以及启用网格接入点和/或网格门户点，将具有少于六个地址字段的地址方案转换为六字段格式。 在转换之后，无线网状网络中的网格点仅需要路由表，以便于数据帧的转发。

公开(公告)号：US20080297069A1

公开(公告)日：2008-12-04

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: G05F1/10

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。

公开(公告)号：US07459979B2

公开(公告)日：2008-12-02

申请号：US11263116

申请日：2005-10-31

Applicant: Craig J. Rotay ,  John Christopher Pritiskutch ,  Richard R. Hildenbrandt

Inventor： Craig J. Rotay ,  John Christopher Pritiskutch ,  Richard R. Hildenbrandt

IPC: H02H7/20 ,  H03F3/20

CPC classification number: G01R31/2623 ,  G01R31/311 ,  H03F1/52 ,  H03F3/21 ,  H03F2200/447

Abstract: A semiconductor indicator for quantitatively diagnosing voltage conditions in high power transistor devices is provided. The semiconductor indicator includes a first transistor and a second transistor, where an electrically active periphery of the second transistor is less than an electrically active periphery of the first transistor. The transistors are thermally coupled to one another and may be in close proximity. The second transistor detects the voltage of a node on the first transistor and may be monitored by infrared imaging. The breakdown voltage characteristic of the second transistor may not substantially change as the temperature in the first transistor increases. An optional control circuit monitors and detects the output voltage of the first transistor.

Abstract translation: 提供了用于定量诊断大功率晶体管器件中的电压条件的半导体指示器。 半导体指示器包括第一晶体管和第二晶体管，其中第二晶体管的电活性周边小于第一晶体管的电活性周边。 晶体管彼此热耦合并且可以紧密接近。 第二晶体管检测第一晶体管上的节点的电压，并且可以通过红外成像来监测。 当第一晶体管的温度升高时，第二晶体管的击穿电压特性基本上不会改变。 可选的控制电路监视和检测第一晶体管的输出电压。

公开(公告)号：US07457607B2

公开(公告)日：2008-11-25

申请号：US11028831

申请日：2005-01-04

Applicant: Ivan Krivokapic

Inventor： Ivan Krivokapic

IPC: H04B1/16

CPC classification number: H04W52/0238 ,  Y02D70/00

Abstract: A comparison is made in a number of scenarios of a current channel gain setting for a receiver to a threshold. If the current channel gain setting is less than the threshold, then current within at least a portion of the receiver is decreased. In one scenario, the comparison is only made in event that no single tone interferer is detected. In another scenario, the comparison is made to a tolerable single tone blocker threshold, and if greater then current is decreased. In another scenario, the comparison is made to an acceptable intermodulation response rejection threshold, and if greater then current is decreased. In yet another scenario, the comparison is made to an acceptable spurious free dynamic range threshold, and if greater then current is decreased. The portions of the receiver for which current decreases are implemented include a low noise amplifier, mixer, voltage controlled oscillator and variable gain amplifiers.

Abstract translation: 在将接收机的当前信道增益设置设置为阈值的多个场景中进行比较。 如果当前信道增益设置小于阈值，则接收机的至少一部分内的电流减小。 在一种情况下，仅在没有检测到单音干扰的情况下进行比较。 在另一种情况下，比较可容忍的单音抑制器阈值，并且如果大于则电流减小。 在另一种情况下，进行可接受的互调响应抑制阈值的比较，并且如果大于则电流减小。 在另一种情况下，比较可接受的无杂散动态范围阈值，并且如果大于则电流减小。 实现电流减小的接收器的部分包括低噪声放大器，混频器，压控振荡器和可变增益放大器。

公开(公告)号：US20080279165A1

公开(公告)日：2008-11-13

申请号：US12118555

申请日：2008-05-09

Applicant: Wendong Hu

Inventor： Wendong Hu

IPC: H04Q7/24

CPC classification number: H04W16/14 ,  H04W8/005 ,  H04W48/10 ,  H04W74/00 ,  H04W92/20

Abstract: The invention relates generally to communication systems and in particular to radio frequency (RF) architectures. Some embodiments of the invention are directed towards a multi-channel inter-BS communication system. The multi-channel inter-BS communication system includes a plurality of co-existing wireless regional area network (WRAN) cells, wherein each of the plurality of co-existing WRAN cells includes a plurality of data frames and at the end of each of the plurality of data frames is a slotted co-existence window. Additional embodiments of the invention include CB frames, fixed-slot host scheduling and modulo scheduling.

Abstract translation: 本发明一般涉及通信系统，尤其涉及射频（RF）架构。 本发明的一些实施例涉及多信道BS间通信系统。 多信道BS间通信系统包括多个共存的无线区域网（WRAN）小区，其中多个共存的WRAN小区中的每一个包括多个数据帧，并且在每个 多个数据帧是时隙共存窗口。 本发明的附加实施例包括CB帧，固定时隙主机调度和模调度。

公开(公告)号：US07444630B2

公开(公告)日：2008-10-28

申请号：US10774994

申请日：2004-02-09

Applicant: Christian D. Kasper

Inventor： Christian D. Kasper

IPC: G06F9/445 ,  G11C15/00

CPC classification number: G06F9/3017 ,  G06F9/268 ,  G06F9/328

Abstract: A Central Processing Unit (CPU) hotpatch circuit compares the run-time instruction stream against an internal cache. The internal cache stores embedded memory addresses with associated control flags, executable instruction codes, and tag information. In the event that a comparison against the current program counter succeeds, then execution is altered as required per the control flags. If no comparison match is made, then execution of the instruction that was accessed by the program counter is executed.

Abstract translation: 中央处理单元（CPU）热补丁电路将运行时指令流与内部高速缓存进行比较。 内部高速缓存存储具有关联控制标志，可执行指令代码和标签信息的嵌入式存储器地址。 如果与当前程序计数器的比较成功，则根据控制标志的要求更改执行。 如果不进行比较匹配，则执行由程序计数器访问的指令。

公开(公告)号：US07442584B2

公开(公告)日：2008-10-28

申请号：US11284979

申请日：2005-11-21

Applicant: Richard Austin Blanchard

Inventor： Richard Austin Blanchard

IPC: H01L21/332

CPC classification number: H01L29/74 ,  H01L29/0634 ,  H01L29/0657 ,  H01L29/0692 ,  H01L29/0834 ,  H01L29/66363 ,  H01L29/87

Abstract: A method for manufacturing an isolated vertical power device includes forming, in a back surface of a first conductivity type substrate, back isolation wall trenches that surround a conduction region of the device. In a front surface of the substrate, front isolation wall trenches are formed around the conduction region. Thereafter, a film containing a second type dopant is deposited in the front and back isolation wall trenches. In the conduction region on the back surface, conduction region trenches are formed inside the perimeter of the isolation wall trenches. A first type dopant is deposited in the conduction region trenches. The dopants are diffused from the conduction region trenches and isolation wall trenches to form a first conductivity type conduction region structure and a second conductivity type isolation wall.

Abstract translation: 一种用于制造隔离垂直功率器件的方法包括在第一导电类型衬底的背表面中形成围绕器件的导电区域的后隔离壁沟槽。 在基板的前表面上，在导电区域周围形成前隔离壁沟槽。 此后，在前后隔离壁沟槽中沉积含有第二种掺杂剂的膜。 在背表面的导电区域中，导电区沟槽形成在隔离壁沟槽周边的内部。 第一种掺杂剂沉积在导电区沟槽中。 掺杂剂从导电区沟槽和隔离壁沟槽扩散以形成第一导电类型的导电区域结构和第二导电型隔离壁。

公开(公告)号：US20080225795A1

公开(公告)日：2008-09-18

申请号：US12046246

申请日：2008-03-11

Applicant: Guobin Sun ,  Hongfei Zhu ,  Yanling yao

Inventor： Guobin Sun ,  Hongfei Zhu ,  Yanling yao

IPC: H04Q7/20

CPC classification number: H04L1/187 ,  H04L1/1607 ,  H04W36/0011

Abstract: A mobile device includes a communications protocol stack including a MAC layer and TCP layer separated by an IP layer. A cross-layer coordination module parallel to the communications protocol stack is coupled to both the MAC layer and TCP layer. The MAC layer generates a message sent to the cross-layer coordination module indicating that the mobile device is about to engage in a communications handover from a first base station to a second base station. The cross-layer coordination module passes handover information to the TCP layer so as to inform the TCP layer of the communications handover. If the mobile device is operating as a TCP sender, the TCP layer freezes its connection and state during the communications handover. If the mobile device is operating as a TCP receiver, the TCP layer sends a TCP ACK message to a TCP sender having an advertised window size set to a zero value so as to cause the TCP sender to freeze a connection and state during communications handover.

Abstract translation: 移动设备包括通信协议栈，其包括由IP层分隔的MAC层和TCP层。 与通信协议栈并行的跨层协调模块耦合到MAC层和TCP层。 MAC层产生发送到跨层协调模块的消息，指示移动设备即将从第一基站到第二基站进行通信切换。 跨层协调模块将切换信息传递给TCP层，以通知TCP层通信切换。 如果移动设备作为TCP发送者运行，则TCP层在通信切换期间冻结其连接和状态。 如果移动设备作为TCP接收机操作，则TCP层向广播窗口大小设置为零值的TCP发送方发送TCP ACK消息，以使TCP发送者在通信切换期间冻结连接和状态。

公开(公告)号：US07425984B2

公开(公告)日：2008-09-16

申请号：US10407490

申请日：2003-04-04

Applicant: George Q. Chen ,  Li Hong ,  Peter McGuinness

Inventor： George Q. Chen ,  Li Hong ,  Peter McGuinness

IPC: H04N7/18 ,  H04N5/225 ,  H04N5/262

CPC classification number: H04N5/247 ,  G06K9/209 ,  G06T15/20 ,  G06T2200/21 ,  G06T2207/10052 ,  H04N5/23232

Abstract: A compound camera system for generating an enhanced virtual image having a large depth-of-field. The compound camera system comprises a plurality of component cameras for generating image data of an object and a data processor for generating the enhanced virtual image from the image data. The data processor generates the enhanced virtual image by generating a first component virtual image at a first depth plane, generating a second component virtual image at a second depth plane, and inserting first selected pixels from the first component virtual image into enhanced the virtual image and inserting second selected pixels from the second component virtual image into the enhanced virtual image.