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1. 发明申请

US20150194975A1 ANALOGUE-TO-DIGITAL CONVERTER 有权
标题翻译：模拟数字转换器
公开(公告)号：US20150194975A1
公开(公告)日：2015-07-09
申请号：US14150164
申请日：2014-01-08
申请人： Cambridge Silicon Radio Limited
发明人： Gerald Miaille , Michael John Story , Dimitrios Mavridis
IPC分类号： H03M1/08 , G01R23/00 , H03M3/00 , H03M1/18 , H03M1/34
CPC分类号： G01R23/00 , H03M3/42 , H03M3/44 , H03M3/454 , H03M3/466 , H03M3/47
摘要： An analogue-to-digital converter for converting an analogue input signal into a digital output signal, the analogue-to-digital converter including two conversion paths, each configured to receive a version of the analogue input signal and convert it into a digital bit stream, a first feedback loop configured to provide feed-back, to both paths, that is indicative of a difference between the digital bit streams output by the two paths, and a second feedback loop configured to feed-back, to both paths, that is indicative of an average of the digital bit streams output by the two paths.
摘要翻译：一种用于将模拟输入信号转换为数字输出信号的模拟 - 数字转换器，所述模数转换器包括两个转换路径，每个转换路径被配置为接收模拟输入信号的版本并将其转换成数字位流第一反馈回路，其被配置为向两个路径提供表示由两个路径输出的数字位流之间的差异的反馈回路，以及被配置为反馈到两个路径的第二反馈回路，指示由两条路径输出的数字比特流的平均值。

2. 发明申请

US20150188495A1 CURRENT CONTROLLED TRANSCONDUCTING INVERTING AMPLIFIERS 有权
标题翻译：电流控制转换放大器
公开(公告)号：US20150188495A1
公开(公告)日：2015-07-02
申请号：US14150014
申请日：2014-01-08
申请人： Cambridge Silicon Radio Limited
发明人： Michael John Story
IPC分类号： H03F1/02 , H03M1/18 , H03M1/00 , H03F3/16 , H03F3/193
CPC分类号： H03F1/0211 , H03F1/308 , H03F1/523 , H03F1/526 , H03F3/16 , H03F3/193 , H03F3/3028 , H03F3/3061 , H03F3/72 , H03F2200/129 , H03F2200/144 , H03F2200/294 , H03F2203/30031 , H03F2203/30084 , H03F2203/30117 , H03M1/002 , H03M1/18 , H03M1/66 , H03M3/40 , H03M3/43 , H03M3/438
摘要： An amplifier including a first transistor of a first conduction type; a second transistor of a second conduction type, the second transistor being coupled to the first transistor; an input for receiving an input signal, a control terminal of the first transistor being coupled to a control terminal of the second transistor, the control terminals being coupled to the input; an output for outputting an output signal, the output being coupled to the first transistor and the second transistor; and a current supply coupled to the first transistor and configured to supply current so as to cause a predetermined transconductance of the amplifier.
摘要翻译：一种放大器，包括第一导电类型的第一晶体管; 第二导体类型的第二晶体管，所述第二晶体管耦合到所述第一晶体管; 用于接收输入信号的输入端，所述第一晶体管的控制端子耦合到所述第二晶体管的控制端子，所述控制端子耦合到所述输入端; 用于输出输出信号的输出，所述输出耦合到所述第一晶体管和所述第二晶体管; 以及电流源，耦合到第一晶体管并且被配置为提供电流以便引起放大器的预定跨导。

3. 发明申请

US20150140937A1 ON-CHIP TRANSMIT AND RECEIVE FILTERING 审中-公开
标题翻译：片上发送和接收过滤
公开(公告)号：US20150140937A1
公开(公告)日：2015-05-21
申请号：US14150145
申请日：2014-01-08
申请人： Cambridge Silicon Radio Limited
发明人： Michael John Story , Terence Chi-Fung Kwok
IPC分类号： H04B1/44 , H04W52/02 , H04B1/38
CPC分类号： H04B1/44 , H04B1/3833 , H04B1/525 , H04W52/028 , Y02D70/00 , Y02D70/144 , Y02D70/40
摘要： An integrated circuit chip including a chip pin configured to direct radio frequency signals on and off chip; a signal path from the chip pin which divides into a first signal path coupled to an input unit and a second signal path coupled to an output unit; a first filter between the chip pin and the input unit on the first signal path; a second filter between the chip pin and the output unit on the second signal path; a first switch coupling the first signal path to ground; and a second switch coupling the second signal path to ground; wherein the first and second switches are controllable to isolate the input unit from the output unit when the integrated circuit chip is transmitting a radio frequency signal, and to isolate the output unit from the input unit when the integrated circuit chip is receiving a radio frequency signal.
摘要翻译：一种集成电路芯片，包括：芯片引脚，用于引导和关闭芯片上的射频信号; 从芯片引脚分离成耦合到输入单元的第一信号路径和耦合到输出单元的第二信号路径的信号路径; 在所述第一信号路径上的所述芯片引脚和所述输入单元之间的第一滤波器; 芯片引脚和第二信号路径上的输出单元之间的第二滤波器; 将第一信号路径耦合到地的第一开关; 以及将所述第二信号路径耦合到地的第二开关; 其中当所述集成电路芯片正在发送射频信号时，所述第一和第二开关是可控制的，以将所述输入单元与所述输出单元隔离，并且当所述集成电路芯片正在接收射频信号时将所述输出单元与所述输入单元隔离开; 。

4. 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。

5. 发明申请

US20150185263A1 LOCAL OSCILLATOR FREQUENCY CALIBRATION 审中-公开
标题翻译：本地振荡器频率校准
公开(公告)号：US20150185263A1
公开(公告)日：2015-07-02
申请号：US14141021
申请日：2013-12-26
申请人： Cambridge Silicon Radio Limited
发明人： Timothy Charles Clapp , Duncan Angus McLeod , Michael John Story
IPC分类号： G01R23/02 , H03L7/085 , H03L7/099
CPC分类号： G01R23/02 , H03K23/54 , H03L7/085 , H03L7/091 , H03L7/099 , H03L7/18
摘要： A frequency locked loop for generating a clock signal, comprising: a controllable oscillator configured to, in dependence on a control signal, generate an oscillator signal having an oscillator signal frequency; a frequency divider coupled to the controllable oscillator configured to reduce the oscillator signal frequency to form a divided oscillator signal frequency; and a frequency detector coupled to the frequency divider and configured to generate the control signal in dependence on a reference signal frequency; wherein the frequency divider comprises a first counter and a second counter, the first counter configured to be clocked by the oscillator signal and to produce a first counter output signal, and the second counter configured to be clocked by the first counter output signal.
摘要翻译：一种用于产生时钟信号的锁频环路，包括：可控振荡器，被配置为根据控制信号产生具有振荡器信号频率的振荡器信号; 耦合到所述可控振荡器的分频器，被配置为减小所述振荡器信号频率以形成分频振荡器信号频率; 以及频率检测器，耦合到所述分频器并且被配置为根据参考信号频率产生所述控制信号; 其中所述分频器包括第一计数器和第二计数器，所述第一计数器配置为由所述振荡器信号计时并产生第一计数器输出信号，所述第二计数器被配置为由所述第一计数器输出信号计时。

6. 发明授权

US08803574B2 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：US08803574B2
公开(公告)日：2014-08-12
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： 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。

7. 发明申请

US20150215052A1 LOW CURRENT RSSI DETECTOR 有权
标题翻译：低电流RSSI检测器
公开(公告)号：US20150215052A1
公开(公告)日：2015-07-30
申请号：US14168153
申请日：2014-01-30
申请人： Cambridge Silicon Radio Limited
发明人： Michael John Story
IPC分类号： H04B17/00
CPC分类号： H04B1/1027 , H04B1/16 , H04L1/20
摘要： An RSSI detector for determining a received signal strength of a received signal, including a transistor configured to operate in a non-linear mode to generate second order components of the received signal comprising a DC component and an AC component; a filter configured to attenuate the AC component of the generated signal to form a filtered signal; and a determination unit configured to determine the received signal strength of the received signal based on an amplitude of the filtered signal.
摘要翻译：一种用于确定接收信号的接收信号强度的RSSI检测器，包括被配置为以非线性模式操作以产生包括DC分量和AC分量的接收信号的二阶分量的晶体管; 滤波器，被配置为衰减所产生的信号的AC分量以形成滤波信号; 以及确定单元，被配置为基于所述滤波信号的幅度来确定所述接收信号的接收信号强度。

8. 发明申请

US20150200052A1 INTEGRATED CIRCUIT CHIP INDUCTOR CONFIGURATION 有权
标题翻译：集成电路芯片电感器配置
公开(公告)号：US20150200052A1
公开(公告)日：2015-07-16
申请号：US14151943
申请日：2014-01-10
申请人： Cambridge Silicon Radio Limited
发明人： Michael John Story
IPC分类号： H01F30/12 , H04B1/04 , H01F27/34
CPC分类号： H04B1/04 , H01F17/0006 , H01F27/346
摘要： An integrated circuit chip including a first inductor; a second inductor having n1 turns and located a distance r1 from the first inductor; and a third inductor having n2 turns and located a distance r2 from the first inductor; wherein the second and third inductors are coupled so as to cause current to circulate around the second inductor in a first rotational direction and around the third inductor in a second rotational direction opposite to the first rotational direction; and wherein n1, n2, r1 and r2 are such that current induced in the first inductor due to magnetic coupling from the second inductor is negated by current induced in the first inductor due to magnetic coupling from the third inductor.
摘要翻译：一种集成电路芯片，包括第一电感器; 具有n1圈的第二电感器并且与第一电感器的距离r1定位; 以及第三电感器，其具有n2个匝并且与所述第一电感器定位距离r2; 其中所述第二和第三电感器被耦合以使得电流在与所述第一旋转方向相反的第二旋转方向上沿第一旋转方向围绕所述第二电感器循环并围绕所述第三电感器循环; 并且其中n1，n2，r1和r2使得由于来自第二电感器的磁耦合而在第一电感器中感应的电流由于由第三电感器的磁耦合而在第一电感器中感应的电流而被否定。

9. 发明申请

US20150188489A1 FREQUENCY FINE TUNING 有权
标题翻译：频率微调
公开(公告)号：US20150188489A1
公开(公告)日：2015-07-02
申请号：US14143158
申请日：2013-12-30
申请人： Cambridge Silicon Radio Limited
发明人： Michael John Story
IPC分类号： H03B5/12
CPC分类号： H03B5/124 , H03B1/00 , H03B5/1212 , H03B5/1228 , H03L5/00
摘要： An oscillator including: an oscillating circuit for generating an output signal having an output signal frequency, the oscillating circuit including an inductive element and a capacitive element, the capacitive element having a variable capacitance for coarsely tuning the output signal frequency; and a current supply for supplying current to the oscillating circuit, the current supply being variable for finely tuning the output signal frequency.
摘要翻译：一种振荡器，包括：用于产生具有输出信号频率的输出信号的振荡电路，所述振荡电路包括电感元件和电容元件，所述电容元件具有用于粗调谐输出信号频率的可变电容; 以及用于向振荡电路提供电流的电流源，电流源可变地用于微调输出信号频率。

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