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11. 发明申请

US20070213021A1 Frequency modulation radio receiver including a noise estimation unit 失效
标题翻译：包括噪声估计单元的调频无线电接收机
公开(公告)号：US20070213021A1
公开(公告)日：2007-09-13
申请号：US11374533
申请日：2006-03-13
申请人： Dana Taipale , G. Tuttle , Gerald Champagne , Javier Elenes
发明人： Dana Taipale , G. Tuttle , Gerald Champagne , Javier Elenes
IPC分类号： H04B17/00
CPC分类号： H04B1/1027 , H04B17/336
摘要： A frequency modulation (FM) radio receiver includes a processing unit that may generate a magnitude value corresponding to a signal strength of each of a plurality of digital samples of a received FM signal. The receiver also includes a noise estimation unit that may filter the magnitude values using a high pass filter and may generate a noise value representative of a noise portion of the received FM signal based upon the filtered magnitude values.
摘要翻译：一种频率调制（FM）无线电接收机包括一个处理单元，该处理单元可产生对应于所接收的FM信号的多个数字样本中的每一个的信号强度的幅度值。接收机还包括噪声估计单元，该噪声估计单元可以使用高通滤波器对幅度值进行滤波，并且可以基于滤波的幅值产生代表所接收的FM信号的噪声部分的噪声值。

12. 发明申请

US20070123187A1 Integrated low-if terrestrial audio broadcast receiver and associated method 有权
标题翻译：综合低频地面音频广播接收机及相关方法
公开(公告)号：US20070123187A1
公开(公告)日：2007-05-31
申请号：US11698664
申请日：2007-01-26
申请人： G. Tuttle , Dan Kasha
发明人： G. Tuttle , Dan Kasha
IPC分类号： H03D5/00 , H04B1/18
CPC分类号： H04B1/18 , H04B1/30
摘要： An integrated low-IF (low intermediate frequency) terrestrial broadcast receiver and associated method are disclosed that provide an advantageous and cost-efficient solution. The integrated receiver includes a mixer, local oscillator generation circuitry, low-IF conversion circuitry, and DSP circuitry. And the integrated receiver is particularly suited for small, portable devices and the reception of terrestrial audio broadcasts, such as FM and AM terrestrial audio broadcast, in such portable devices.
摘要翻译：公开了一种集成的低中频（低中频）地面广播接收机和相关方法，其提供了有利且具有成本效益的解决方案。集成接收器包括混频器，本地振荡器产生电路，低IF转换电路和DSP电路。并且集成接收机特别适用于小型便携式设备以及在这种便携式设备中接收地面音频广播，诸如FM和AM地面音频广播。

13. 发明申请

US20070004359A1 Peak detector 有权
标题翻译：峰值检测器
公开(公告)号：US20070004359A1
公开(公告)日：2007-01-04
申请号：US11172477
申请日：2005-06-30
申请人： Vishnu Srinivasan , G. Tuttle
发明人： Vishnu Srinivasan , G. Tuttle
IPC分类号： H04B1/06
CPC分类号： H03G3/3068
摘要： A receiver includes a gain stage, a peak detector and a processor. The gain stage provides an output signal, and the peak detector provides a binary indication of whether the output signal has reached a predetermined threshold. The processor controls the gain stage in response to the binary indication.
摘要翻译：接收机包括增益级，峰值检测器和处理器。增益级提供输出信号，峰值检测器提供输出信号是否达到预定阈值的二进制指示。处理器响应于二进制指示来控制增益级。

14. 发明申请

US20060141973A1 Digital architecture for radio-frequency apparatus and associated methods 有权
公开(公告)号：US20060141973A1
公开(公告)日：2006-06-29
申请号：US11287995
申请日：2005-11-28
申请人： Richard Behrens , Tod Paulus , Mark Spurbeck , Vishnu Srinivasan , Donald Kerth , Jeffrey Scott , G. Tuttle , G. Vishakhadatta
发明人： Richard Behrens , Tod Paulus , Mark Spurbeck , Vishnu Srinivasan , Donald Kerth , Jeffrey Scott , G. Tuttle , G. Vishakhadatta
IPC分类号： H04B1/26 , H04B1/28
CPC分类号： H04B1/28 , H04B1/0003 , H04B1/38 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry. The receiver analog circuitry resides within a first integrated circuit and the receiver digital circuitry resides within a second integrated circuit. The second integrated circuit couples to the first integrated circuit via a one-bit digital interface. The receiver analog circuitry receives an RF signal and processes the received RF signal to generate a digital signal. The receiver analog circuitry provides the digital signal to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal with an intermediate frequency (IF) local oscillator (LO) signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal.

15. 发明申请

US20050143040A1 Method and apparatus for enhancing signal quality within a wireless receiver 有权
标题翻译：一种用于增强无线接收机内的信号质量的方法和装置
公开(公告)号：US20050143040A1
公开(公告)日：2005-06-30
申请号：US10749012
申请日：2003-12-30
申请人： Donald Kerth , G. Tuttle
发明人： Donald Kerth , G. Tuttle
IPC分类号： H04B1/28 , H04B1/10
CPC分类号： H04B1/0007 , H04B1/28
摘要： A method and apparatus for enhancing signal quality within a wireless receiver are disclosed. An image of a desired signal is down-converted to a baseband signal by a digital down converter. The energy of the baseband signal is subsequently determined. If the energy of the baseband signal is equal to or greater than a predetermined threshold, then the IF is swapped for any incoming signals. If the energy of the baseband signal is less than the predetermined threshold, then the IF is maintained for any incoming signals.
摘要翻译：公开了一种用于增强无线接收机内的信号质量的方法和装置。所需信号的图像由数字下变频器下变频为基带信号。随后确定基带信号的能量。如果基带信号的能量等于或大于预定阈值，则IF被交换用于任何输入信号。如果基带信号的能量小于预定阈值，则对于任何输入信号都保持IF。

16. 发明申请

US20070226477A1 Digital architecture using one-time programmable (OTP) memory 失效
标题翻译：数字架构采用一次性可编程（OTP）存储器
公开(公告)号：US20070226477A1
公开(公告)日：2007-09-27
申请号：US11385520
申请日：2006-03-21
申请人： Scott Haban , G. Tuttle , Gregory Hodgson
发明人： Scott Haban , G. Tuttle , Gregory Hodgson
IPC分类号： G06F15/177
CPC分类号： G06F8/60
摘要： In one aspect, the present invention includes an apparatus having a digital signal processor (DSP), a controller coupled to the DSP to provide control signals to the DSP, and a one-time programmable (OTP) memory coupled to the DSP and the controller. The OTP memory may include multiple code portions including a first code block to control the DSP and a second code block to control the controller.
摘要翻译：一方面，本发明包括具有数字信号处理器（DSP）的装置，耦合到DSP以向DSP提供控制信号的控制器以及耦合到DSP和控制器的一次可编程（OTP）存储器。 OTP存储器可以包括多个代码部分，包括用于控制DSP的第一代码块和用于控制控制器的第二代码块。

17. 发明申请

US20070052482A1 Low noise amplifier for a radio receiver 有权
标题翻译：用于无线电接收机的低噪声放大器
公开(公告)号：US20070052482A1
公开(公告)日：2007-03-08
申请号：US11171817
申请日：2005-06-30
申请人： Dan Kasha , G. Tuttle , Gregory Hodgson
发明人： Dan Kasha , G. Tuttle , Gregory Hodgson
IPC分类号： H03F3/191
CPC分类号： H03F3/45183 , H03F2203/45362
摘要： In one embodiment, the present invention includes an amplifier having a transistor stage coupled between a supply voltage and a bias current. The transistor stage has an input to receive a radio frequency (RF) input signal obtained from an antenna. The amplifier has an input impedance that is unmatched to a source impedance of the antenna. In some embodiments, this unmatched input impedance may be substantially greater than the source impedance, and may further be controlled based on a strength of the RF input signal.
摘要翻译：在一个实施例中，本发明包括具有耦合在电源电压和偏置电流之间的晶体管级的放大器。晶体管级具有用于接收从天线获得的射频（RF）输入信号的输入。放大器具有与天线的源阻抗无法匹配的输入阻抗。在一些实施例中，这种不匹配的输入阻抗可以基本上大于源阻抗，并且还可以基于RF输入信号的强度进行控制。

18. 发明申请

US20060068736A1 Controlling the frequency of an oscillator 有权
标题翻译：控制振荡器的频率
公开(公告)号：US20060068736A1
公开(公告)日：2006-03-30
申请号：US11112616
申请日：2005-04-22
申请人： Donald Kerth , James Maligeorgos , Dylan Hester , Lysander Lim , Augusto Marques , G. Tuttle
发明人： Donald Kerth , James Maligeorgos , Dylan Hester , Lysander Lim , Augusto Marques , G. Tuttle
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H03J7/04 , H03B5/36 , H03B2201/025 , H03J2200/10
摘要： A technique includes generating an analog voltage to control a frequency for an oscillator. The analog signal is converted into a digital signal, and the frequency is controlled in response to the digital signal.
摘要翻译：一种技术包括产生模拟电压以控制振荡器的频率。模拟信号被转换成数字信号，并且响应于数字信号来控制频率。

19. 发明申请

US20060003722A1 Dynamic selection of local oscillator signal injection for image rejection in integrated receivers 有权
标题翻译：动态选择本地振荡器信号注入用于集成接收机中的图像抑制
公开(公告)号：US20060003722A1
公开(公告)日：2006-01-05
申请号：US10881579
申请日：2004-06-30
申请人： G. Tuttle , Dan Kasha , Donald Kerth
发明人： G. Tuttle , Dan Kasha , Donald Kerth
IPC分类号： H04B1/18 , H04B1/26 , H04B1/10
CPC分类号： H04B1/10 , H03J1/0041 , H04B1/28
摘要： A system and method are disclosed for dynamically selecting high-side injection or low-side injection of local oscillator mixing signals based upon an assessment of signal power within the input signal spectrum that could cause unwanted images in the processed signal. This image rejection assessment provides an advantageous basis upon which to make dynamic high-side versus low-side injection determinations.
摘要翻译：公开了一种系统和方法，用于基于对输入信号频谱内的信号功率的评估来动态地选择本地振荡器混合信号的高侧注入或低侧注入，这可能导致处理信号中的不需要的图像。这种镜像抑制评估提供了进行动态高侧对低侧注射测定的有利基础。

20. 发明申请

US20060001559A1 On-chip calibration signal generation for tunable filters for RF communications and associated methods 有权
标题翻译：用于RF通信和相关方法的可调谐滤波器的片上校准信号生成
公开(公告)号：US20060001559A1
公开(公告)日：2006-01-05
申请号：US11081959
申请日：2005-03-16
申请人： G. Tuttle , Dan Kasha
发明人： G. Tuttle , Dan Kasha
IPC分类号： H03M1/10
CPC分类号： H04B1/18 , H04B1/30
摘要： On-chip calibration signal generation circuitry is disclosed for filter tuning for radio-frequency communications and associated methods. On-chip circuitry generates a calibration signal that is used to help set a tuning control signal that is received by a tunable front-end filter. In one embodiment, local oscillator (LO) generation circuitry is used to generate the calibration signal. In operation of this embodiment, the LO generation circuitry is tuned to the desired receive channel, or to a frequency at some offset value from the desired receive channel, and the output of the LO generation circuitry is then used as a calibration input signal for a tunable front-end filter. This calibration signal is passed through the receive path circuitry, and the resulting signal is then analyzed to help set a tuning control signal for the tunable front-end filter.
摘要翻译：公开了用于射频通信和相关方法的滤波器调谐的片上校准信号产生电路。片上电路产生校准信号，用于帮助设置由可调谐前端滤波器接收的调谐控制信号。在一个实施例中，使用本地振荡器（LO）产生电路来产生校准信号。在本实施例的操作中，LO产生电路被调谐到期望的接收信道，或者被调谐到来自期望的接收信道的某个偏移值的频率，然后将LO产生电路的输出用作校准输入信号可调谐前端滤波器该校准信号通过接收路径电路，然后对结果信号进行分析，以帮助设置可调谐前端滤波器的调谐控制信号。

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