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31. 发明申请

US20140152354A1 GENERATING A TUNED FREQUENCY OUTPUT FROM A SIGNAL GENERATOR 有权
标题翻译：从信号发生器产生调谐频率输出
公开(公告)号：US20140152354A1
公开(公告)日：2014-06-05
申请号：US13693280
申请日：2012-12-04
申请人： CAMBRIDGE SILICON RADIO LIMITED
发明人： Duncan Angus McLeod , Michael John Story
IPC分类号： H03B19/00 , H03L7/06
CPC分类号： H03B19/00 , H03L7/06 , H03L7/0805 , H03L7/0992 , H03L7/23 , H03L7/235
摘要： A method of tuning the frequency of a generated signal to form an output signal including: forming the generated signal at a signal generator; comparing a feedback signal with a reference signal and generating a control signal in dependence on that comparison, wherein the feedback signal is generated using the output signal; and generating the output signal by performing a frequency-dividing operation in dependence on the generated signal and a dividing factor, wherein the dividing factor is determined in dependence on the control signal.
摘要翻译：一种调谐所生成的信号的频率以形成输出信号的方法，包括：在信号发生器处形成所产生的信号; 将反馈信号与参考信号进行比较，并根据该比较产生控制信号，其中使用输出信号产生反馈信号; 以及通过根据产生的信号和分频因子执行分频操作来产生输出信号，其中根据控制信号确定分频因子。

32. 发明授权

US08730076B2 Spur reduction circuit 有权
标题翻译：减速电路
公开(公告)号：US08730076B2
公开(公告)日：2014-05-20
申请号：US13561507
申请日：2012-07-30
申请人： Hashem Zare-Hoseini , Shuja Hussain Andrabi
发明人： Hashem Zare-Hoseini , Shuja Hussain Andrabi
IPC分类号： H03M1/20
CPC分类号： H03M7/3008
摘要： A circuit for modulating an input signal including a dither signal generator configured to generate a first dither signal having a maximum amplitude, a deamplifier configured to reduce the amplitude of said input signal so as to generate a deamplified input signal having a maximum amplitude that is comparable to the maximum amplitude of the dither signal, and a summer configured to sum the dither signal with the deamplified input signal.
摘要翻译：一种用于调制包括被配置为产生具有最大幅度的第一抖动信号的抖动信号发生器的输入信号的电路，被配置为减小所述输入信号的幅度以便产生具有可比较的最大振幅的去放大输入信号的去放大器到抖动信号的最大幅度，以及加法器，用于将抖动信号与去放大的输入信号相加。

33. 发明申请

US20140132340A1 INTEGRATED CIRCUIT 有权
标题翻译：集成电路
公开(公告)号：US20140132340A1
公开(公告)日：2014-05-15
申请号：US14158467
申请日：2014-01-17
申请人： CAMBRIDGE SILICON RADIO LIMITED
发明人： Simon FINCH , Alan COOMBS
IPC分类号： H01L23/58
CPC分类号： G06F1/3234 , G06F1/3287 , G06F1/329 , G06F1/3293 , G06F9/505 , G06F9/5094 , G06F13/00 , H01L23/58 , H01L2924/0002 , Y02D10/122 , Y02D10/171 , Y02D10/22 , Y02D10/24 , H01L2924/00
摘要： An integrated circuit comprising: a first core circuit configured to operate at a first clock rate for carrying out a first range of tasks; and a second core circuit configured to operate in a first mode and a second mode, the second core circuit being configured to operate at a second clock rate for carrying out a second range of tasks in the second mode and being configured to operate in the second mode when the first core circuit carries out the first range of tasks, the second clock rate being greater than the first clock rate.
摘要翻译：一种集成电路，包括：第一核心电路，被配置为以第一时钟速率操作以执行第一范围的任务; 以及第二核心电路，被配置为在第一模式和第二模式下操作，所述第二核心电路被配置为以第二时钟速率操作，以在所述第二模式中执行任务的第二范围，并被配置为在所述第二模式和第二模式中操作模式，当第一核心电路执行第一任务范围时，第二时钟速率大于第一时钟速率。

34. 发明授权

US08723601B2 Amplifier 有权
标题翻译：放大器
公开(公告)号：US08723601B2
公开(公告)日：2014-05-13
申请号：US13675330
申请日：2012-11-13
申请人： Cambridge Silicon Radio Limited
发明人： Sever Cercelaru
IPC分类号： H03F3/26
CPC分类号： H03F3/45076 , H03F3/2176 , H03F3/245 , H03F3/45179 , H03F3/45188 , H03F2203/45394 , H03F2203/45731
摘要： A differential electronic amplifier including: a first switch connected between a first reference voltage and a first node; a second switch connected between a second reference voltage and a second node; a resonant differential load connected between the first and second nodes and having a centre point connected to a third reference voltage; an output stage constituted by a first side of a transformer; a load impedance connected to a second side of the transformer; a first capacitive element connected between the first side of the transformer and the first node; and a second capacitive element connected between the first side of the transformer and the second node; wherein all inductive elements connected in series between the first and second capacitive elements are inductively coupled to the second side of the transformer.
摘要翻译：一种差分电子放大器，包括：连接在第一参考电压和第一节点之间的第一开关; 连接在第二参考电压和第二节点之间的第二开关; 连接在第一和第二节点之间并具有连接到第三参考电压的中心点的谐振差分负载; 由变压器的第一侧构成的输出级; 连接到变压器的第二侧的负载阻抗; 连接在变压器的第一侧和第一节点之间的第一电容元件; 以及连接在变压器的第一侧和第二节点之间的第二电容元件; 其中串联连接在第一和第二电容元件之间的所有电感元件感应耦合到变压器的第二侧。

35. 发明申请

US20140122019A1 METHOD AND APPARATUS FOR CALCULATING TRANSMISSION DELAY ACROSS A NETWORK 有权
标题翻译：用于通过网络计算传输延迟的方法和装置
公开(公告)号：US20140122019A1
公开(公告)日：2014-05-01
申请号：US13661769
申请日：2012-10-26
申请人： Cambridge Silicon Radio Limited
发明人： Richard Turner
IPC分类号： G04F10/00 , G06F15/00
CPC分类号： G04F10/00 , G04R40/06 , G06F15/00
摘要： A method of calculating a transmission delay value for data transmitted from a first device to a second device across a communications link. The method involves calculating a plurality of measured values representing the transmission delay measured by the second device over time; detecting a minimum boundary of the measured values; and deriving the transmission delay value from the minimum boundary. The transmission delay value may be used to synchronize the clock signal of the second device to the clock signal of the first device.
摘要翻译：一种通过通信链路计算从第一设备传输到第二设备的数据的传输延迟值的方法。该方法包括计算表示第二设备随时间测量的传输延迟的多个测量值; 检测测量值的最小边界; 并从最小边界导出传输延迟值。传输延迟值可以用于将第二设备的时钟信号与第一设备的时钟信号同步。

36. 发明授权

US08712363B2 Power-saving receiver 有权
标题翻译：省电接收机
公开(公告)号：US08712363B2
公开(公告)日：2014-04-29
申请号：US12865043
申请日：2008-11-19
申请人： Steven Mark Singer
发明人： Steven Mark Singer
IPC分类号： H04B1/16 , H04W52/02
CPC分类号： H04W52/02 , H04W52/0229 , Y02D70/1222 , Y02D70/142 , Y02D70/144
摘要： A signal receiver capable of operating in two modes: a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having: a functional unit that can operate in two manners: a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and a controller for causing the functional unit to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode.
摘要翻译：一种能够以两种模式操作的信号接收机：用于信号的接收和解码的正常模式以及用于检测信号的存在的检测模式，所述信号接收机具有：能够以两种方式操作的功能单元：具有相对低功率消耗和相对较差的精度以及具有相对较高的功耗和相对较高精度的第二种方式;以及控制器，用于当接收机处于其检测模式时使功能单元以第一种方式工作，而当第二种方式接收机处于正常模式。

37. 发明授权

US08710658B2 Under bump passive components in wafer level packaging 有权
标题翻译：晶圆级封装中的不良无源元件
公开(公告)号：US08710658B2
公开(公告)日：2014-04-29
申请号：US13299556
申请日：2011-11-18
申请人： Zaid Aboush
发明人： Zaid Aboush
IPC分类号： H01L23/48 , H01L21/78 , H01L21/768
CPC分类号： H01L24/13 , H01L23/5223 , H01L23/5227 , H01L23/525 , H01L24/11 , H01L2224/0401
摘要： Under bump passive structures, such as capacitors and inductors, may be formed using the post-processing layers in wafer level packaging. In an embodiment, a packaged semiconductor device is described which includes an under-bump capacitor formed in semiconductor device post-processing layers. As part of the post-processing a first dielectric layer is deposited on the active face of a semiconductor die and then in sequence a first metal layer, second dielectric layer and second metal layer are deposited. The under-bump capacitor is formed from a lower plate in the first metal layer and an upper plate in the second metal layer, the plates being separated by the second dielectric layer. In order to increase capacitance, the capacitor may be formed over one or more openings in the first dielectric layer, such that the layers forming the capacitor are no longer planar but follow the underlying topology.
摘要翻译：可以使用晶片级封装中的后处理层来形成诸如电容器和电感器之类的不足的无源结构。在一个实施例中，描述了一种封装的半导体器件，其包括形成在半导体器件后处理层中的凸点之下的电容器。作为后处理的一部分，第一介电层沉积在半导体管芯的有源面上，然后依次沉积第一金属层，第二介电层和第二金属层。凸点之间电容器由第一金属层中的下板和第二金属层中的上板形成，所述板被第二介电层隔开。为了增加电容，可以在第一介电层中的一个或多个开口上形成电容器，使得形成电容器的层不再是平面的，而是遵循下面的拓扑。

38. 发明申请

US20140078958A1 SCHEMES FOR DETECTING WIRELESS NETWORKS 审中-公开
标题翻译：检测无线网络的方案
公开(公告)号：US20140078958A1
公开(公告)日：2014-03-20
申请号：US13623439
申请日：2012-09-20
申请人： CAMBRIDGE SILICON RADIO LIMITED
发明人： Andrei Barbu Popescu , Martin Robert Evans , Paul Christopher McFarthing
IPC分类号： H04W72/00
CPC分类号： H04W74/004 , Y02D70/142 , Y02D70/144
摘要： A station for accessing the resources of an access point in a wireless network, the station including a transmitter that is arranged to formulate probe requests and a transmit chain that is arranged to transmit probe requests on multiple channels of the access point simultaneously, wherein the probe requests are configured to elicit responses from the access point. Also disclosed is a station for accessing the resources of an access point in a wireless network, wherein the network includes a plurality of channels at different frequencies and the station includes a receiver and a receive chain arranged to deliver to the receiver a signal that has been acquired wirelessly from the network and which spans a plurality of the channels, wherein the receiver is arranged to produce a first spectrogram of the signal and to make a determination, by comparing the first spectrogram with one or more earlier spectrograms of the signal, of whether there is communication starting in the network in a channel covered by the signal.
摘要翻译：一种用于访问无线网络中的接入点的资源的站，所述站包括布置成制定探测请求的发射机和被布置为同时在所述接入点的多个信道上发送探测请求的发射链，其中所述探测请求被配置为从接入点引出响应。还公开了一种用于访问无线网络中的接入点的资源的站，其中所述网络包括不同频率的多个信道，并且所述站包括接收机和接收链，所述接收机和接收链被布置为向所述接收机递送已经被从所述网络无线地获取并跨越多个信道，其中所述接收机被布置为产生所述信号的第一频谱图并且通过将所述第一频谱图与所述信号的一个或多个较早的谱图进行比较来确定是否在信号覆盖的信道中，网络中有通信开始。

39. 发明申请

US20140062812A1 MULTI-ANTENNA ISOLATION 审中-公开
标题翻译：多天线隔离
公开(公告)号：US20140062812A1
公开(公告)日：2014-03-06
申请号：US13599346
申请日：2012-08-30
申请人： Leslie David Smith , Johan Lucas Gertenbach
发明人： Leslie David Smith , Johan Lucas Gertenbach
IPC分类号： H01Q1/00 , H01Q1/50
CPC分类号： H01Q1/38 , H01Q1/521 , H01Q21/28
摘要： An interconnection medium for connecting circuitry, including a ground plane; a first balanced antenna located in a first plane, the first plane being parallel to the ground plane; a second balanced antenna located in a second plane, the second plane being parallel to the first plane; wherein the first balanced antenna and the second balanced antenna are configured such that the magnetic field radiated by the first balanced antenna is orthogonal to the magnetic field radiated by the second balanced antenna, and the electrical field radiated by the first balanced antenna is orthogonal to the electric field radiated by the second balanced antenna.
摘要翻译：一种用于连接电路的互连介质，包括接地平面; 位于第一平面中的第一平衡天线，所述第一平面平行于所述接地平面; 位于第二平面中的第二平衡天线，所述第二平面平行于所述第一平面; 其中，所述第一平衡天线和所述第二平衡天线被配置为使得由所述第一平衡天线辐射的磁场与由所述第二平衡天线辐射的磁场正交，并且由所述第一平衡天线辐射的电场与由第二平衡天线辐射的电场。

40. 发明授权

US08666092B2 Noise estimation 失效
标题翻译：噪声估计
公开(公告)号：US08666092B2
公开(公告)日：2014-03-04
申请号：US12750511
申请日：2010-03-30
申请人： Esfandiar Zavarehei
发明人： Esfandiar Zavarehei
IPC分类号： H04B15/00
CPC分类号： H04B1/1027
摘要： A method and apparatus are provided for estimating the noise spectrum of an audio signal occupying a certain frequency range. The amplitude of the audio signal is measured at only a subset of the frequency range having a low expected signal to noise ratio at the time of measuring such that the measured amplitude is indicative of noise amplitude at that subset of the frequency range. A predefined noise spectral shape is then adapted by fitting to the noise amplitude so as to form the estimated noise spectrum. The noise spectrum so estimated is used to remove interference noise from the audio signal.
摘要翻译：提供了一种用于估计占用特定频率范围的音频信号的噪声频谱的方法和装置。音频信号的幅度仅在测量时具有低预期信噪比的频率范围的子集处被测量，使得测量的幅度指示频率范围的该子集处的噪声幅度。然后通过拟合噪声幅度来适应预定义的噪声谱形状，以便形成估计的噪声谱。所估计的噪声频谱用于消除音频信号中的干扰噪声。

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