专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100091688A1 SIMULTANEOUS MULTIPLE SIGNAL RECEPTION AND TRANSMISSION USING FREQUENCY MULTIPLEXING AND SHARED PROCESSING 有权
标题翻译：使用频率多路复用和共享处理的同时多信号接收和传输
公开(公告)号：US20100091688A1
公开(公告)日：2010-04-15
申请号：US12250646
申请日：2008-10-14
申请人： Robert B. Staszewski , Khurram Mohammad , Dirk Leipold
发明人： Robert B. Staszewski , Khurram Mohammad , Dirk Leipold
IPC分类号： H04L5/14 , H04J1/00 , H04B7/216
CPC分类号： H04B1/0075 , H03D7/1441 , H03D7/1466 , H03D7/1483 , H03D7/165 , H03D2200/0025 , H03D2200/0047 , H03D2200/0074 , H03D2200/0084 , H03D2200/0088 , H04L5/06 , H04L5/143 , H04L27/3863 , H04L2027/0016
摘要： A novel mechanism for simultaneous multiple signal reception and transmission using frequency multiplexing and shared processing. Multiple RF signals, which may be of various wireless standards, are received using one or more shared processing blocks thereby significantly reducing chip space and power requirements. Shared components include local oscillators, analog to digital converters, digital RX processing and digital baseband processing. In operation, multiple RX front end circuits, one for each desired wireless signal, generate a plurality of IF signals that are frequency multiplexed and combined to create a single combined IF signal. The combined IF signal is processed by a shared processing block. Digital baseband processing is performed on each receive signal to generate respective data outputs. Further, simultaneous full-duplex transmission and reception is performed using a single local oscillator. The phase/frequency modulation of the frequency synthesizer used in the TX is removed from the local oscillator signal for use in the receiver.
摘要翻译：一种使用频率复用和共享处理同时进行多信号接收和传输的新颖机制。可以使用一个或多个共享处理块来接收可能具有各种无线标准的多个RF信号，从而显着减少芯片空间和功率需求。共享组件包括本地振荡器，模数转换器，数字RX处理和数字基带处理。在操作中，针对每个期望的无线信号的多个RX前端电路产生频率多路复用并组合以产生单个组合IF信号的多个IF信号。组合的IF信号由共享处理块处理。对每个接收信号执行数字基带处理，以产生相应的数据输出。此外，使用单个本地振荡器执行同时的全双工发送和接收。在TX中使用的频率合成器的相位/频率调制从本地振荡器信号中去除，以在接收机中使用。

2. 发明授权

US08411793B2 Digital amplitude modulation 有权
标题翻译：数字幅度调制
公开(公告)号：US08411793B2
公开(公告)日：2013-04-02
申请号：US13081338
申请日：2011-04-06
申请人： Robert B. Staszewski , Sameh Rezeq , Dirk Leipold
发明人： Robert B. Staszewski , Sameh Rezeq , Dirk Leipold
IPC分类号： H04K1/02
CPC分类号： H04L27/361
摘要： A transmitter using quadrature modulation includes a rectangular to polar converter for converting data symbols into a polar form, where each polar symbol has a magnitude signal and an angle signal. Digital phase modulation circuitry includes an all digital PLL circuit for generating a phase modulated RF carrier signal responsive to the angle signal frequency control word (FCW) and a carrier frequency FCW. A digitally controlled amplifier for amplifying the phase modulated signal is controlled by a digital amplitude control circuitry for controlling the gain of the digitally controlled amplifier responsive to the magnitude signal.
摘要翻译：使用正交调制的发射机包括用于将数据符号转换成极性形式的矩形到极化转换器，其中每个极性符号具有幅度信号和角度信号。数字相位调制电路包括全数字PLL电路，用于响应角度信号频率控制字（FCW）和载波频率FCW产生相位调制的RF载波信号。用于放大相位调制信号的数字控制放大器由数字幅度控制电路控制，用于响应于幅度信号来控制数字控制放大器的增益。

3. 发明授权

US07767995B2 Single-electron tunnel junction for complementary metal-oxide device and method of manufacturing the same 有权
标题翻译：用于互补金属氧化物器件的单电子隧道结及其制造方法
公开(公告)号：US07767995B2
公开(公告)日：2010-08-03
申请号：US11846993
申请日：2007-08-29
申请人： Robert B. Staszewski , Renaldi Winoto , Dirk Leipold
发明人： Robert B. Staszewski , Renaldi Winoto , Dirk Leipold
IPC分类号： H01L29/06
CPC分类号： H01L27/092 , H01L29/66151 , H01L29/88 , Y10S438/979 , Y10S977/937
摘要： A method of providing a p-type substrate, disposing a pad oxide layer on the p-type substrate, disposing a nitride layer on the pad oxide layer, forming a nitride window in the nitride layer, disposing a field oxide in the nitride window, disposing a polysilicon gate over the field oxide, and diffusing a n-doped region in the p-type substrate, thereby forming at least one single-electron tunnel junction between the polysilicon gate and the n-doped region.
摘要翻译：一种提供p型衬底的方法，在p型衬底上设置焊盘氧化物层，在衬垫氧化物层上设置氮化物层，在氮化物层中形成氮化物窗，在氮化物窗中设置场氧化物，在场氧化物上设置多晶硅栅极，并扩散p型衬底中的n掺杂区域，从而在多晶硅栅极和n掺杂区域之间形成至少一个单电子隧道结。

4. 发明授权

US07519135B2 Direct radio frequency (RF) sampling with recursive filtering method 有权
标题翻译：直接射频（RF）采样采用递归滤波法
公开(公告)号：US07519135B2
公开(公告)日：2009-04-14
申请号：US10190867
申请日：2002-07-08
申请人： Robert B. Staszewski , Khurram Muhammad , Kenneth J. Maggio , Dirk Leipold
发明人： Robert B. Staszewski , Khurram Muhammad , Kenneth J. Maggio , Dirk Leipold
IPC分类号： H03K5/01
CPC分类号： H03D7/125 , H04B1/1036
摘要： A radio receiver 2000 with a sampling mixer 1100 for creating a discrete-time sample stream by directly sampling an RF current with history and rotating capacitors 1111 and 1112, wherein the accumulated charge on the rotating capacitors is read-out to produce a sample. The mixer provides immunity to noise glitches by predicting the occurrence of the glitch (or detecting a significant difference between observed and predicted samples) and creating corrected samples for the corrupted samples. These corrected samples can be created with special circuitry 1933 (digital) or in the mixer 1100 (analog).
摘要翻译：具有采样混合器1100的无线电接收机2000，用于通过用历史和旋转电容器1111和1112直接采样RF电流来产生离散时间采样流，其中读出旋转电容器上的累积电荷以产生样本。混合器通过预测毛刺的发生（或检测观察到的和预测的样品之间的显着差异）并为损坏的样品产生校正的样品来提供对噪声毛刺的免疫。这些校正样本可以用专用电路1933（数字）或混合器1100（模拟）来创建。

5. 发明授权

US07483508B2 All-digital frequency synthesis with non-linear differential term for handling frequency perturbations 有权
标题翻译：用于处理频率扰动的非线性微分项的全数字频率合成
公开(公告)号：US07483508B2
公开(公告)日：2009-01-27
申请号：US10306655
申请日：2002-11-27
申请人： Robert B. Staszewski , Dirk Leipold
发明人： Robert B. Staszewski , Dirk Leipold
IPC分类号： H03D3/24
CPC分类号： H03L7/085 , H03L7/0991
摘要： An all-digital frequency synthesizer architecture is built around a digitally controlled oscillator (DCO) that is tuned in response to a digital tuning word (OTW). In exemplary embodiments: (1) a gain characteristic (KDCO) of the digitally controlled oscillator can be determined by observing a digital control word before and after a known change (Δfmax) in the oscillating frequency; (2) a portion (TUNE_TF) of the tuning word can be dithered (1202), and the resultant dithered portion (dkTF) can then be applied to a control input of switchable devices within the digitally controlled oscillator; and (3) a non-linear differential term (187, 331) can be used to expedite correction of the digitally controlled oscillator when large phase error changes (335) occur.
摘要翻译：全数字频率合成器架构围绕数字控制振荡器（DCO）构建，该振荡器响应于数字调谐字（OTW）进行调谐。在示例性实施例中：（1）数字控制振荡器的增益特性（KDCO）可以通过在振荡频率中的已知改变（Deltafmax）之前和之后观察数字控制字来确定; （2）可以对调谐字的一部分（TUNE_TF）进行抖动（1202），然后将所得到的抖动部分（dkTF）施加到数字控制振荡器内的可切换装置的控制输入端; 和（3）当大相位误差变化（335）发生时，可以使用非线性微分项（187,331）来加速数字控制振荡器的校正。

6. 发明授权

US07405685B2 Negative contributive offset compensation in a transmit buffer utilizing inverse clocking 有权
标题翻译：使用反向时钟的发送缓冲器中的负贡献偏移补偿
公开(公告)号：US07405685B2
公开(公告)日：2008-07-29
申请号：US11178993
申请日：2005-07-11
申请人： Sameh S. Rezeq , Dirk Leipold , Robert B. Staszewski , Chih-Ming Hung
发明人： Sameh S. Rezeq , Dirk Leipold , Robert B. Staszewski , Chih-Ming Hung
IPC分类号： H03M3/00
CPC分类号： H03F1/0205 , H03F1/3241 , H03F2200/331 , H03F2200/375 , H03M3/356 , H03M3/50 , H03M7/3026 , H03M7/3037 , H04L27/368
摘要： A novel method and apparatus for a negative contributive offset compensation mechanism for a transmit buffer adapted to compensate for the positive offset generated by higher order sigma-delta modulators used to amplitude modulate the transmit buffer. The positive outputs from the sigma-delta modulator are processed differently than the negative outputs. The inverters associated with the negative outputs in the sigma-delta modulator are removed and the clock signal used to drive the transistors corresponding to the negative outputs is negated or shifted 180 degrees from the clock used to drive the transistors corresponding to the positive outputs. A non-inverted version of the clock is used with the positive outputs and an inverse clock is used with the negative outputs. Use of the inverse clock causes a negative contributive offset to be generated that is added on the second half cycle of each clock. The result is an offset compensated RF output signal having zero offset.
摘要翻译：一种用于发射缓冲器的负贡献偏移补偿机制的新颖方法和装置，适用于补偿由用于幅度调制发射缓冲器的高阶Σ-Δ调制器产生的正偏移。来自Σ-Δ调制器的正输出的处理方式与负输出不同。与Σ-Δ调制器中的负输出相关联的反相器被去除，并且用于驱动对应于负输出的晶体管的时钟信号与用于驱动对应于正输出的晶体管的时钟相反或偏移180度。时钟的非反相版本与正输出一起使用，反向时钟与负输出一起使用。使用逆时钟将产生在每个时钟的第二个半周期上添加的负贡献偏移。结果是具有零偏移的偏移补偿RF输出信号。

7. 发明授权

US06734741B2 Frequency synthesizer with digitally-controlled oscillator 有权
公开(公告)号：US06734741B2
公开(公告)日：2004-05-11
申请号：US10006607
申请日：2001-11-30
申请人： Robert B. Staszewski , Dirk Leipold , Khurram Muhammad , Chih-Ming Hung
发明人： Robert B. Staszewski , Dirk Leipold , Khurram Muhammad , Chih-Ming Hung
IPC分类号： H03L700
CPC分类号： H03C3/0975 , H03C3/0941 , H03C3/095 , H03C3/0958 , H03C3/0966 , H03K19/0016 , H03L7/085 , H03L7/087 , H03L7/091 , H03L7/093 , H03L7/099 , H03L7/16 , H03L2207/50 , H04L7/0029
摘要： A transmitter (10) based on a frequency synthesizer includes an LC tank (12) of a digitally controlled oscillator (DCO) with various arrays of capacitors. The LC tank 12 is divided into two major groups that reflect two general operational modes: acquisition and tracking. The first group (process/voltage/temperature and acquisition) approximately sets the desired center frequency of oscillation initially, while the second group (integer and fractional tracking) precisely controls the oscillating frequency during the actual operation. For highly accurate outputs, dynamic element matching (DEM) is used in the integer tracking controller to reduce non-linearities caused by non-uniform capacitor values. Also, a preferred range of the integer tracking capacitor array may be used for modulation after the selected channel has been acquired. A digital sigma-delta modulator circuit (50) drives a capacitor array (14d) in response to the fractional bits of the error word. On mode switches, the accumulated error is recalculated to a phase restart value to prevent perturbations.

8. 发明申请

US20110261871A1 ALL-DIGITAL FREQUENCY SYNTHESIS WITH DCO GAIN CALCULATION 有权
标题翻译：全数字频率合成与DCO增益计算
公开(公告)号：US20110261871A1
公开(公告)日：2011-10-27
申请号：US13175594
申请日：2011-07-01
申请人： Robert B. Staszewski , Dirk Leipold , John Wallberg
发明人： Robert B. Staszewski , Dirk Leipold , John Wallberg
IPC分类号： H04B17/00
CPC分类号： H03L7/085 , H03L7/0991 , H03L2207/50
摘要： An all-digital frequency synthesizer architecture is built around a digitally controlled oscillator (DCO) that is tuned in response to a digital tuning word (OTW). In exemplary embodiments: (1) a gain characteristic (KDCO) of the digitally controlled oscillator can be determined by observing a digital control word before and after a known change (Δfmax) in the oscillating frequency; and (2) a portion (TUNE_TF) of the tuning word can be dithered (1202), and the resultant dithered portion (dkTF) can then be applied to a control input of switchable devices within the digitally controlled oscillator.
摘要翻译：全数字频率合成器架构围绕数字控制振荡器（DCO）构建，该振荡器响应于数字调谐字（OTW）进行调谐。在示例性实施例中：（1）数字控制振荡器的增益特性（KDCO）可以通过在振荡频率中的已知变化（＆Dgr; fmax）之前和之后观察数字控制字来确定; 和（2）调谐字的一部分（TUNE_TF）可以被抖动（1202），并且所得到的抖动部分（dkTF）然后可以被施加到数字控制振荡器内的可切换装置的控制输入。

9. 发明授权

US08027657B2 Sampling mixer with asynchronous clock and signal domains 有权
标题翻译：具有异步时钟和信号域的采样混频器
公开(公告)号：US08027657B2
公开(公告)日：2011-09-27
申请号：US10121761
申请日：2002-04-12
申请人： Robert B. Staszewski , Khurram Muhammad , Yo-Chuol Ho , Dirk Leipold
发明人： Robert B. Staszewski , Khurram Muhammad , Yo-Chuol Ho , Dirk Leipold
IPC分类号： H04B1/26 , H04L27/00
CPC分类号： H03D7/125 , H04B1/1036
摘要： A mixer 1100 with a plurality of signal paths typically requires separate clock generating hardware for each signal path. However, the redundancy of having multiple clock generating hardware significantly increases power consumption and integrated circuit area when the mixer 1100 is integrated into silicon. A method and apparatus 1125 containing a circuit for generating a set of clock signals that can be shared by the different signal paths is presented. Advantage is taken of the significant capacitance difference between different sampling capacitors in the mixer and the superposition property.
摘要翻译：具有多个信号路径的混频器1100通常需要用于每个信号路径的单独的时钟产生硬件。然而，当混合器1100集成到硅中时，具有多个时钟产生硬件的冗余显着地增加了功耗和集成电路面积。提出了一种包含用于生成可由不同信号路径共享的一组时钟信号的电路的方法和装置1125。利用混频器中不同采样电容器之间的显着电容差和叠加特性。

10. 发明授权

US08000428B2 All-digital frequency synthesis with DCO gain calculation 有权
标题翻译：全数字频率合成采用DCO增益计算
公开(公告)号：US08000428B2
公开(公告)日：2011-08-16
申请号：US10302029
申请日：2002-11-22
申请人： Robert B. Staszewski , Dirk Leipold , John Wallberg
发明人： Robert B. Staszewski , Dirk Leipold , John Wallberg
IPC分类号： H04L7/00
CPC分类号： H03L7/085 , H03L7/0991 , H03L2207/50
摘要： An all-digital frequency synthesizer architecture is built around a digitally controlled oscillator (DCO) that is tuned in response to a digital tuning word (OTW). In exemplary embodiments: (1) a gain characteristic (KDCO) of the digitally controlled oscillator can be determined by observing a digital control word before and after a known change (Δfmax) in the oscillating frequency; and (2) a portion (TUNE_TF) of the tuning word can be dithered (1202), and the resultant dithered portion (dkTF) can then be applied to a control input of switchable devices within the digitally controlled oscillator.
摘要翻译：全数字频率合成器架构围绕数字控制振荡器（DCO）构建，该振荡器响应于数字调谐字（OTW）进行调谐。在示例性实施例中：（1）数字控制振荡器的增益特性（KDCO）可以通过在振荡频率中的已知变化（＆Dgr; fmax）之前和之后观察数字控制字来确定; 和（2）调谐字的一部分（TUNE_TF）可以被抖动（1202），并且所得到的抖动部分（dkTF）然后可以被施加到数字控制振荡器内的可切换装置的控制输入。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式