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    Interchangeable receive inputs for band and system swappability in communication systems and related methods
    54.
    发明授权
    Interchangeable receive inputs for band and system swappability in communication systems and related methods 有权
    通信系统中的频带和系统可交换的可互换接收输入及相关方法

    公开(公告)号：US07333831B2

    公开(公告)日：2008-02-19

    申请号：US11231182

    申请日：2005-09-20

    Applicant: Vishnu S. Srinivasan ,  Gary B. Levy ,  Brett O. Mitchelson ,  Donald A. Kerth ,  Eric R. Garlepp ,  G. Tyson Tuttle

    Inventor： Vishnu S. Srinivasan ,  Gary B. Levy ,  Brett O. Mitchelson ,  Donald A. Kerth ,  Eric R. Garlepp ,  G. Tyson Tuttle

    IPC: H04B1/18

    CPC classification number: H04B1/006

    Abstract: Interchangeable high band low-noise-amplifiers (LNAs) and low band low-noise-amplifiers (LNAs) and related methods are disclosed that greatly enhance the efficiency of designing handsets for different combinations of frequency bands. The input signals to particular pins on a receiver or transceiver integrated circuit (IC) are swappable such that multiple frequency bands can be input to the same input pins thereby allowing for simplified system design. Efficient programmable techniques are also disclosed for controlling a swap mode within communication ICs. These interchangeable or band swappable input paths, for example, can be utilized to allow interchangeability between high band (PCS, DCS) and low band (GSM, E-GSM) inputs for cellular communications. In this way, for example, handset manufacturers can build a single printed circuit board (PCB) that can be utilized for cellular communications in the United States of America, where 850 MHz (GSM) and 1900 MHz (PCS) bands are utilized, and in Europe, wherein 900 MHz (E-GSM) and 1800 MHz (DCS) bands are utilized.

    Abstract translation: 公开了可互换的高频带低噪声放大器（LNA）和低频带低噪声放大器（LNA）及相关方法，这大大提高了针对不同频带组合设计手机的效率。 接收器或收发器集成电路（IC）上的特定引脚的输入信号是可交换的，使得可以将多个频带输入到相同的输入引脚，从而允许简化的系统设计。 还公开了用于控制通信IC内的交换模式的高效可编程技术。 例如，这些可互换或频带可交换的输入路径可用于允许用于蜂窝通信的高频带（PCS，DCS）和低频（GSM，E-GSM）输入之间的互换性。 以这种方式，例如，手机制造商可以构建可用于在美国使用850MHz（GSM）和1900MHz（PCS）频带的美国的蜂窝通信的单个印刷电路板（PCB），以及 在欧洲，其中使用900MHz（E-GSM）和1800MHz（DCS）频带。

    On-chip calibration signal generation for tunable filters for RF communications and associated methods
    56.
    发明授权
    On-chip calibration signal generation for tunable filters for RF communications and associated methods 有权

    公开(公告)号：US07127217B2

    公开(公告)日：2006-10-24

    申请号：US11081959

    申请日：2005-03-16

    Applicant: G. Tyson Tuttle ,  Dan B. Kasha

    Inventor： G. Tyson Tuttle ,  Dan B. Kasha

    IPC: H04B1/40

    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.

    Interchangeable receive inputs for band and system swappability in communication systems and related methods
    57.
    发明申请
    Interchangeable receive inputs for band and system swappability in communication systems and related methods 有权
    通信系统中的频带和系统可交换的可互换接收输入及相关方法

    公开(公告)号：US20060178122A1

    公开(公告)日：2006-08-10

    申请号：US11231182

    申请日：2005-09-20

    Applicant: Vishnu Srinivasan ,  Gary Levy ,  Brett Mitchelson ,  Donald Kerth ,  Eric Garlepp ,  G. Tyson Tuttle

    Inventor： Vishnu Srinivasan ,  Gary Levy ,  Brett Mitchelson ,  Donald Kerth ,  Eric Garlepp ,  G. Tyson Tuttle

    IPC: H04B1/18

    CPC classification number: H04B1/006

    Abstract: Interchangeable high band low-noise-amplifiers (LNAs) and low band low-noise-amplifiers (LNAs) and related methods are disclosed that greatly enhance the efficiency of designing handsets for different combinations of frequency bands. The input signals to particular pins on a receiver or transceiver integrated circuit (IC) are swappable such that multiple frequency bands can be input to the same input pins thereby allowing for simplified system design. Efficient programmable techniques are also disclosed for controlling a swap mode within communication ICs. These interchangeable or band swappable input paths, for example, can be utilized to allow interchangeability between high band (PCS, DCS) and low band (GSM, E-GSM) inputs for cellular communications. In this way, for example, handset manufacturers can build a single printed circuit board (PCB) that can be utilized for cellular communications in the United States of America, where 850 MHz (GSM) and 1900 MHz (PCS) bands are utilized, and in Europe, wherein 900 MHz (E-GSM) and 1800 MHz (DCS) bands are utilized.

    Abstract translation: 公开了可互换的高频带低噪声放大器（LNA）和低频带低噪声放大器（LNA）及相关方法，这大大提高了针对不同频带组合设计手机的效率。 接收器或收发器集成电路（IC）上的特定引脚的输入信号是可交换的，使得可以将多个频带输入到相同的输入引脚，从而允许简化的系统设计。 还公开了用于控制通信IC内的交换模式的高效可编程技术。 例如，这些可互换或频带可交换的输入路径可用于允许用于蜂窝通信的高频带（PCS，DCS）和低频（GSM，E-GSM）输入之间的互换性。 以这种方式，例如，手机制造商可以构建可用于在美国使用850MHz（GSM）和1900MHz（PCS）频带的美国的蜂窝通信的单个印刷电路板（PCB），以及 在欧洲，其中使用900MHz（E-GSM）和1800MHz（DCS）频带。

    Low noise amplifier for a radio receiver
    59.
    发明授权
    Low noise amplifier for a radio receiver 有权
    用于无线电接收机的低噪声放大器

    公开(公告)号：US08346198B2

    公开(公告)日：2013-01-01

    申请号：US11171817

    申请日：2005-06-30

    Applicant: Dan B. Kasha ,  G. Tyson Tuttle ,  Gregory A. Hodgson

    Inventor： Dan B. Kasha ,  G. Tyson Tuttle ,  Gregory A. Hodgson

    IPC: H04B1/18

    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。

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