公开(公告)号：US07382202B2

公开(公告)日：2008-06-03

申请号：US11540662

申请日：2006-10-02

申请人： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

发明人： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

IPC分类号： H03L7/00 ,  H03B21/00 ,  H03B27/00

CPC分类号： H04B1/28 ,  H04B1/0014 ,  H04B1/0032 ,  H04B1/0039

摘要： An apparatus provides a local oscillator signal based on a selected channel of an RF input signal. For example, the apparatus can set a frequency of the local oscillator signal based on the selected channel. Digital circuitry can be used to generate the local oscillator signal. For instance, the digital circuitry can provide a digital representation of the local oscillator signal. A DAC can convert the digital representation to an analog signal. Other circuitry can provide first and second quadrature components of the local oscillator signal, based on the analog signal.

摘要翻译： 一种装置基于RF输入信号的所选择的信道提供本地振荡器信号。 例如，该装置可以基于所选择的信道来设置本地振荡器信号的频率。 数字电路可用于产生本地振荡器信号。 例如，数字电路可以提供本地振荡器信号的数字表示。 DAC可以将数字表示转换为模拟信号。 其他电路可以基于模拟信号提供本地振荡器信号的第一和第二正交分量。

公开(公告)号：US20080036636A1

公开(公告)日：2008-02-14

申请号：US11876626

申请日：2007-10-22

申请人： Shahla Khorram

发明人： Shahla Khorram

IPC分类号： H03M1/66

CPC分类号： H04B1/0028 ,  H04B1/0003 ,  H04B1/0032 ,  H04B1/1027 ,  H04B1/405 ,  H04B15/04 ,  H04B2215/064

摘要： A radio frequency integrated circuit (RFIC) includes a digital to analog converter, an analog to digital converter, and a low noise amplifier. The digital to analog converter (DAC) is operably coupled to convert outbound symbols into outbound baseband signals, wherein the digital to analog converter is fabricated within a DAC portion of a substrate of the RFIC. The analog to digital converter (ADC) is operably coupled to convert inbound baseband signals into inbound symbols, wherein the analog to digital converter is fabricated within an ADC portion of the substrate. The low noise amplifier is operably coupled to amplify an inbound radio frequency (RF) signals. The low noise amplifier is fabricated within a radio portion of the substrate, wherein the DAC portion of the substrate is physically between the ADC portion and the radio portion of the substrate to provide isolation when the low noise amplifier and the ADC are active and the DAC is inactive.

摘要翻译： 射频集成电路（RFIC）包括数模转换器，模数转换器和低噪声放大器。 数模转换器（DAC）可操作地耦合以将出站符号转换为出站基带信号，其中数模转换器被制造在RFIC的衬底的DAC部分内。 模数转换器（ADC）可操作地耦合以将入站基带信号转换为入站符号，其中模数转换器被制造在基板的ADC部分内。 低噪声放大器可操作地耦合以放大入站射频（RF）信号。 低噪声放大器制造在衬底的无线电部分内，其中衬底的DAC部分物理地位于衬底的ADC部分和无线电部分之间，以在低噪声放大器和ADC有效时提供隔离，并且DAC 不活动

公开(公告)号：US20070140391A1

公开(公告)日：2007-06-21

申请号：US11609447

申请日：2006-12-12

申请人： JIANPING PAN

发明人： JIANPING PAN

IPC分类号： H04B1/10

CPC分类号： H04B1/28 ,  H03H11/0422 ,  H03H11/12 ,  H03H2011/0494 ,  H04B1/0032

摘要： A complex bandpass-notch filter is disclosed. It provides both bandpass filtering and image rejection, in complex frequency domain, along with a quadrature signal generation. Consequently, this complex bandpass-notch filter provides the both functions of a bandpass filter and a passive polyphase filter. The complex bandpass-notch filter can be used for RF receivers and integrated TV and cable tuners. A low-IF single-conversion integrated tuner and a zero-IF direct-conversion integrated tuner incorporating with this complex bandpass-notch filter are disclosed for terrestrial and cable systems.

摘要翻译： 公开了一种复带通滤波器。 它在复杂频域中提供带通滤波和镜像抑制，以及正交信号生成。 因此，该复带通滤波器提供带通滤波器和被动多相滤波器的功能。 复合带通滤波器可用于射频接收器和集成电视和电缆调谐器。 公开了一种低IF单转换集成调谐器和采用该复合带通滤波器的零中频直接转换集成调谐器，用于地面和电缆系统。

公开(公告)号：US20070132623A1

公开(公告)日：2007-06-14

申请号：US11297336

申请日：2005-12-09

申请人： Alan Holden

发明人： Alan Holden

IPC分类号： H03M1/12

CPC分类号： H04B1/30 ,  H04B1/0028 ,  H04B1/0032

摘要： A CMOS hybrid analog-digital receiver core where filtering and gain functions are implemented in the digital domain. The analog portion of the receiver core includes standard circuits such as a low noise amplifier for receiving an RF input signal, and a mixer circuit for down-converting the RF input signal to a base band frequency signal. The analog to digital conversion function is provided by a merged ADC filter circuit having a low order filter stage and an ADC stage. The low order filter stage performs low order filtering of the base band signal to reduce dynamic range and clock requirements for subsequent analog to digital conversion the ADC stage. The two circuit stages are considered to be merged since they both consist of an interconnection of identical transconductance cells, where each transconductance cell includes a series of interconnected CMOS inverters.

摘要翻译： CMOS数字接收机芯片，其中滤波和增益功能在数字领域得以实现。 接收机核心的模拟部分包括标准电路，例如用于接收RF输入信号的低噪声放大器，以及用于将RF输入信号下变频为基带频率信号的混频器电路。 模数转换功能由具有低阶滤波级和ADC级的合并ADC滤波电路提供。 低阶滤波器级对基带信号执行低阶滤波，以减少ADC级后续模数转换的动态范围和时钟要求。 两个电路级被认为是合并的，因为它们都由相同跨导单元的互连构成，其中每个跨导单元包括一系列互连的CMOS反相器。

公开(公告)号：US20070077903A1

公开(公告)日：2007-04-05

申请号：US11239782

申请日：2005-09-30

申请人： Amer Hassan ,  Christian Huitema ,  Vishesh Parikh

发明人： Amer Hassan ,  Christian Huitema ,  Vishesh Parikh

IPC分类号： H04B1/18 ,  H04M3/00

CPC分类号： H04L63/10 ,  G06F8/36 ,  G06Q20/102 ,  G06Q30/04 ,  H04B1/0032 ,  H04H60/04 ,  H04L67/34 ,  H04L2463/101

摘要： Systems and methods are provided that disclose a network service for modularly constructing a software defined radio (“SDR”). A server system provides an SDR kernel (i.e., a potentially platform-neutral definition of digital signal processing functionality and control operations necessary to implement the core portion of a software defined radio implementing a particular radio standard) to a client system. The client system may select a desired SDR kernel through a variety of means disclosed herein. While some SDR kernels may be provided for free and unrestricted use, others may be purchased or subscribed to and additionally restricted by digital rights management (“DRM”) policies. Based upon the agreed upon payment terms and any other restrictions, a customized set of DRM policies may be applied by the server system to the SDR kernel before sending it to a client system. Additionally, the server system may provide a description of governmental regulations applicable to a given locality.

摘要翻译： 提供了公开用于模块化构建软件定义无线电（“SDR”）的网络服务的系统和方法。 服务器系统向客户端系统提供SDR内核（即，数字信号处理功能的潜在平台中立定义和实现特定无线电标准的软件定义的无线电的核心部分所必需的控制操作）。 客户端系统可以通过本文公开的各种手段来选择期望的SDR内核。 虽然一些SDR内核可能被提供为免费和不受限制的使用，但是其他可以被数字版权管理（“DRM”）策略购买或订阅并另外受到限制。 根据约定的付款条件和任何其他限制，服务器系统可以将定制的一组DRM策略应用于SDR内核，然后将其发送到客户端系统。 此外，服务器系统可以提供适用于给定地点的政府规章的描述。

公开(公告)号：US07154346B2

公开(公告)日：2006-12-26

申请号：US10902465

申请日：2004-07-30

申请人： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

发明人： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

IPC分类号： H03L7/00 ,  H03B21/00 ,  H03B27/00

CPC分类号： H04B1/28 ,  H04B1/0014 ,  H04B1/0032 ,  H04B1/0039

摘要： An apparatus provides a local oscillator signal based on a selected channel of an RF input signal. For example, the apparatus can set a frequency of the local oscillator signal based on the selected channel. Digital circuitry can be used to generate the local oscillator signal. For instance, the digital circuitry can provide a digital representation of the local oscillator signal. A DAC can convert the digital representation to an analog signal. Other circuitry can provide first and second quadrature components of the local oscillator signal, based on the analog signal.

摘要翻译： 一种装置基于RF输入信号的所选择的信道提供本地振荡器信号。 例如，该装置可以基于所选择的信道来设置本地振荡器信号的频率。 数字电路可用于产生本地振荡器信号。 例如，数字电路可以提供本地振荡器信号的数字表示。 DAC可以将数字表示转换为模拟信号。 其他电路可以基于模拟信号提供本地振荡器信号的第一和第二正交分量。

公开(公告)号：US20060252402A1

公开(公告)日：2006-11-09

申请号：US11481465

申请日：2006-07-06

申请人： Shahla Khorram

发明人： Shahla Khorram

IPC分类号： H04B1/28

CPC分类号： H04B1/0028 ,  H04B1/0032 ,  H04B1/1027 ,  H04B1/403 ,  H04B15/04 ,  H04B2215/064

摘要： An integrated circuit includes an analog module, digital circuitry, and a border section. The analog module is susceptible to noise and is on a substrate of the integrated circuit. The digital circuitry generates the noise and is on the substrate. The border section is on the substrate and physically separates the analog module from the digital circuitry.

摘要翻译： 集成电路包括模拟模块，数字电路和边界部分。 模拟模块易受噪声影响，并在集成电路的基板上。 数字电路产生噪声，并在基板上。 边界部分在基板上，并将模拟模块与数字电路物理分离。

公开(公告)号：US20060035617A1

公开(公告)日：2006-02-16

申请号：US11193713

申请日：2005-07-29

申请人： Jae-Wan Kim

发明人： Jae-Wan Kim

IPC分类号： G01S7/40 ,  H04B1/26 ,  H04B15/00

CPC分类号： H04B1/0032 ,  H04B1/28

摘要： An intermediate frequency receiver includes mixers for generating first and second IF signals from a RF signal and local oscillator signals. A magnitude calibration loop adjusts a gain of the first and/or second IF signals generated from the mixers depending on a magnitude difference between the IF signals. The phase calibration loop adjusts a phase of a local oscillator signal before being used at the mixers depending on a phase difference between the IF signals.

公开(公告)号：US20050136879A1

公开(公告)日：2005-06-23

申请号：US10742374

申请日：2003-12-19

申请人： Shahla Khorram

发明人： Shahla Khorram

IPC分类号： H04B1/00 ,  H04B1/10 ,  H04B1/28 ,  H04B1/40 ,  H04B15/04 ,  H04M1/00

CPC分类号： H04B1/0028 ,  H04B1/0003 ,  H04B1/0032 ,  H04B1/1027 ,  H04B1/405 ,  H04B15/04 ,  H04B2215/064

摘要： A radio frequency integrated circuit (RFIC) includes a digital to analog converter, an analog to digital converter, and a radio module. The digital to analog converter (DAC) is operably coupled to convert outbound symbols into outbound baseband signals, wherein the digital to analog converter is fabricated within a DAC portion of a substrate of the RFIC. The analog to digital converter (ADC) is operably coupled to convert inbound baseband signals into inbound symbols, wherein the analog to digital converter is fabricated within an ADC portion of the substrate. The radio module is operably coupled to convert the outbound baseband signals into outbound radio frequency (RF) signals and to convert inbound RF signals into the inbound baseband signals. The radio module is fabricated within a radio portion of the substrate, wherein the DAC portion of the substrate is physically between the ADC portion and the radio portion of the substrate.

摘要翻译： 射频集成电路（RFIC）包括数模转换器，模数转换器和无线电模块。 数模转换器（DAC）可操作地耦合以将出站符号转换为出站基带信号，其中数模转换器被制造在RFIC的衬底的DAC部分内。 模数转换器（ADC）可操作地耦合以将入站基带信号转换为入站符号，其中模数转换器被制造在基板的ADC部分内。 无线电模块可操作地耦合以将出站基带信号转换为出站射频（RF）信号，并将入站RF信号转换为入站基带信号。 无线电模块被制造在衬底的无线电部分内，其中衬底的DAC部分物理地位于衬底的ADC部分和无线电部分之间。

公开(公告)号：US06904102B2

公开(公告)日：2005-06-07

申请号：US09801600

申请日：2001-03-08

申请人： Domenico G. Porcino

发明人： Domenico G. Porcino

IPC分类号： G08C13/00 ,  H04B1/16 ,  H04L27/14 ,  H03K9/00 ,  H04L27/06 ,  H04L27/22

CPC分类号： H04B1/0032 ,  H04B1/0003 ,  H04W52/0229 ,  Y02D70/40

摘要： A method of, and a receiver for, detecting the presence of digitally modulated data signals in which the receiver is periodically energised to detect the presence of the signals. The received signals/noise are converted using a quadrature frequency translation stage (16, 17, 18) into a complex signal which after differential decoding (28) contain n samples for each transmitted bit. A running sum of successive groups of m samples, where m

摘要翻译： 一种检测数字调制数据信号的存在的方法和接收机，其中接收器周期性地被激励以检测信号的存在。 接收到的信号/噪声被使用正交频率转换级（16,17,18）转换成复信号，复信号在差分解码（28）包含每个发送位的n个采样之后。 获得连续的m个样本组的运行和，其中m