公开(公告)号：US20070004373A1

公开(公告)日：2007-01-04

申请号：US11171042

申请日：2005-06-30

Applicant: Dan Kasha ,  G. Tuttle ,  Gregory Hodgson

Inventor： Dan Kasha ,  G. Tuttle ,  Gregory Hodgson

IPC: H04B1/16

CPC classification number: H04B1/18 ,  H03F3/45183

Abstract: In one embodiment, the present invention includes an amplifier having an input to receive a radio frequency (RF) signal from an output node of a source. An input stage coupled to the amplifier input may include one or more components to aid in processing of incoming signals. One such component coupled between the source and the input of the amplifier is a coupling capacitor used to maintain a bias voltage of the amplifier at a different potential than a DC voltage of the output node. In certain applications, the amplifier and the coupling capacitor may be integrated on a single substrate.

Abstract translation: 在一个实施例中，本发明包括具有用于从源的输出节点接收射频（RF）信号的输入的放大器。 耦合到放大器输入的输入级可以包括一个或多个组件以帮助处理输入信号。 耦合在放大器的源极和输入之间的一个这样的部件是用于将放大器的偏置电压保持在与输出节点的直流电压不同的电位的耦合电容器。 在某些应用中，放大器和耦合电容器可以集成在单个衬底上。

公开(公告)号：US20060003729A1

公开(公告)日：2006-01-05

申请号：US10881926

申请日：2004-06-30

Applicant: G. Tuttle ,  Dan Kasha

Inventor： G. Tuttle ,  Dan Kasha

IPC: H04B1/28

CPC classification number: H04B1/18 ,  H04B1/30

Abstract: 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.

公开(公告)号：US20080051918A1

公开(公告)日：2008-02-28

申请号：US11824596

申请日：2007-06-29

Applicant: G. Tuttle ,  Wade Gillham ,  Dan Kasha

Inventor： G. Tuttle ,  Wade Gillham ,  Dan Kasha

IPC: G06F17/00

CPC classification number: H04B1/1646 ,  H04B1/034

Abstract: An apparatus includes processor and a control interface. The processor is adapted to in a first mode of operation, operate as part of one of a wireless receiver and a wireless transmitter and in a second mode of operation. The processor also processes a first audio band signal to generate a second audio band signal. The control interface selects one of the first and second modes of operation.

Abstract translation: 一种装置包括处理器和控制接口。 处理器适于处于第一操作模式，作为无线接收机和无线发射机之一的一部分操作，并且处于第二操作模式。 处理器还处理第一音频信号以产生第二音频信号。 控制界面选择第一和第二操作模式之一。

公开(公告)号：US20070123187A1

公开(公告)日：2007-05-31

申请号：US11698664

申请日：2007-01-26

Applicant: G. Tuttle ,  Dan Kasha

Inventor： G. Tuttle ,  Dan Kasha

IPC: H03D5/00 ,  H04B1/18

CPC classification number: H04B1/18 ,  H04B1/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080009261A1

公开(公告)日：2008-01-10

申请号：US11900997

申请日：2007-09-14

Applicant: G. Tuttle ,  Dan Kasha

Inventor： G. Tuttle ,  Dan Kasha

IPC: H04B1/26

CPC classification number: H04B1/18 ,  H04B1/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070052482A1

公开(公告)日：2007-03-08

申请号：US11171817

申请日：2005-06-30

Applicant: Dan Kasha ,  G. Tuttle ,  Gregory Hodgson

Inventor： Dan Kasha ,  G. Tuttle ,  Gregory Hodgson

IPC: H03F3/191

CPC classification number: H03F3/45183 ,  H03F2203/45362

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20060003722A1

公开(公告)日：2006-01-05

申请号：US10881579

申请日：2004-06-30

Applicant: G. Tuttle ,  Dan Kasha ,  Donald Kerth

Inventor： G. Tuttle ,  Dan Kasha ,  Donald Kerth

IPC: H04B1/18 ,  H04B1/26 ,  H04B1/10

CPC classification number: H04B1/10 ,  H03J1/0041 ,  H04B1/28

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20060001559A1

公开(公告)日：2006-01-05

申请号：US11081959

申请日：2005-03-16

Applicant: G. Tuttle ,  Dan Kasha

Inventor： G. Tuttle ,  Dan Kasha

IPC: H03M1/10

CPC classification number: H04B1/18 ,  H04B1/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070054629A1

公开(公告)日：2007-03-08

申请号：US10730404

申请日：2003-12-08

Applicant: James Maligeorgos ,  Augusto Marques ,  Lysander Lim ,  G. Tuttle ,  Aslamali Rafi ,  Tod Paulus ,  Gregory Uehara ,  Jeffrey Scott ,  Richard Behrens ,  Donald Kerth ,  G. Vishakhadatta ,  Vishnu Srinivasan ,  Caiyi Wang

Inventor： James Maligeorgos ,  Augusto Marques ,  Lysander Lim ,  G. Tuttle ,  Aslamali Rafi ,  Tod Paulus ,  Gregory Uehara ,  Jeffrey Scott ,  Richard Behrens ,  Donald Kerth ,  G. Vishakhadatta ,  Vishnu Srinivasan ,  Caiyi Wang

IPC: H04B1/38

CPC classification number: H04B1/30 ,  H03J2200/10 ,  H04L27/0002

Abstract: Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.

Abstract translation: 包括生成具有可变频率的参考信号的晶体振荡器电路的收发器电路和频率修改电路的射频（RF）设备的组件可以以各种方式被划分，例如作为一个或多个单独的集成电路。 频率修改电路可以被实现为包括数字控制的晶体振荡器（“DCXO”）电路和晶体的晶体振荡器电路的一部分。 频率修改电路可以包括至少一个可变电容器件，并且可以用于产生具有可调频率的参考信号。 可调参考信号可以被提供给RF装置的其他部件，和/或RF装置可以被配置为向基带处理器电路提供可调参考信号。 自动频率控制（AFC）电路可以与RF电路的其它组件集成，并且可以基于例如从温度传感器接收的信号来生成用于频率修改电路的频率控制信号。 数模转换器（DAC）电路可以与RF电路的其他部件集成，以实现从基带处理器电路到RF电路的全数字频率控制通信。

公开(公告)号：US20060003728A1

公开(公告)日：2006-01-05

申请号：US10880483

申请日：2004-06-30

Applicant: G. Tuttle ,  David Welland ,  Scott Willingham

Inventor： G. Tuttle ,  David Welland ,  Scott Willingham

IPC: H04B1/28

CPC classification number: H04B1/30

Abstract: A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same integrated circuit as mixer and local oscillator (LO) generation circuitry. The generation circuitry generates an oscillation signal that is passed through a first divider to generate mixing signals for the mixer and that is passed through a second divider to generate a digital clock signal that is utilized by the DSP circuitry. This digital clock signal can be utilized by integrated analog-to-digital conversion circuitry, as well.

Abstract translation: 公开了一种用于集成接收机和相关方法的比例时钟系统，其提供用于将数字信号处理（DSP）电路组合在与混频器和本地振荡器（LO）生成电路相同的集成电路上的有利解决方案。 产生电路产生振荡信号，该信号通过第一分频器以产生用于混频器的混频信号，并通过第二分频器产生由DSP电路利用的数字时钟信号。 该数字时钟信号也可以由集成的模数转换电路使用。