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    Regenerative divider for up and down conversion of radio frequency (RF) signals
    1.
    发明授权
    Regenerative divider for up and down conversion of radio frequency (RF) signals 有权
    用于射频（RF）信号的上下转换的再生分压器

    公开(公告)号：US07277683B2

    公开(公告)日：2007-10-02

    申请号：US10541120

    申请日：2004-01-08

    申请人： Sathwant Dosanjh ,  William Kung ,  Tajinder Manku

    发明人： Sathwant Dosanjh ,  William Kung ,  Tajinder Manku

    IPC分类号： H04B1/16

    CPC分类号： H03B21/00 ,  H03B21/01 ,  H03B27/00 ,  H03D3/007 ,  H03H7/21 ,  H03H2007/0192 ,  H03J2200/17 ,  H03J2200/40 ,  H04B1/30

    摘要： The present invention relates generally to communications, and more specifically to a method and apparatus for generating local oscillator signals used for up- and down-conversion of RF (radio frequency) signals. A major problem in the design of modulators and demodulators, if the leakage of local oscillator (LO) signals into the received signal path. The invention presents a number of highly integratable circuits which resolve the LO leakage problem, using regenerative divider circuits acting on oscillator signals which are running at a multiple or fraction of the frequency of the desired LO signal, to generate in-phase (I) and quadrature (Q) mixing signals. Embodiments of these circuits also use harmonic subtraction and polyphase mixers, as well as virtual local oscillator TM (VLO) mixing signals. VLO mixing signals are signal pairs which emulate local oscillator signals by means of complementary mono-tonal and multi-tonal mixing signals.

    摘要翻译： 本发明一般涉及通信，更具体地涉及用于产生用于RF（射频）信号的上变频和下变频的本地振荡器信号的方法和装置。 如果本地振荡器（LO）信号泄漏到接收信号路径中，调制器和解调器的设计中的主要问题。 本发明提出了许多高度可积分的电路，其解决了LO泄漏问题，使用作用于振荡器信号的再生分压器电路，该振荡器信号以期望LO信号的频率的多个或几分之一运行，以产生同相（I）和 正交（Q）混频信号。 这些电路的实施例也使用谐波减法和多相混频器，以及虚拟本地振荡器TM（VLO）混频信号。 VLO混合信号是通过互补单声道和多音调混合信号模拟本地振荡器信号的信号对。

    Regenerative divider for up and down conversion of radio frequency (rf) signals
    2.
    发明申请
    Regenerative divider for up and down conversion of radio frequency (rf) signals 有权
    射频（rf）信号的上下转换的再生分压器

    公开(公告)号：US20060246861A1

    公开(公告)日：2006-11-02

    申请号：US10541120

    申请日：2004-01-08

    申请人： Sathwant Dosanjh ,  William Kung ,  Tajinder Manku

    发明人： Sathwant Dosanjh ,  William Kung ,  Tajinder Manku

    IPC分类号： H03J7/32

    CPC分类号： H03B21/00 ,  H03B21/01 ,  H03B27/00 ,  H03D3/007 ,  H03H7/21 ,  H03H2007/0192 ,  H03J2200/17 ,  H03J2200/40 ,  H04B1/30

    摘要： The present invention relates generally to communications, and more specifically to a method and apparatus for generating local oscillator signals used for up- and down-conversion of RF (radio frequency) signals. A major problem in the design of modulators and demodulators, if the leakage of local oscillator (LO) signals into the received signal path. The invention presents a number of highly integratable circuits which resolve the LO leakage problem, using regenerative divider circuits acting on oscillator signals which are running at a multiple or fraction of the frequency of the desired LO signal, to generate in-phase (I) and quadrature (Q) mixing signals. Embodiments of these circuits also use harmonic subtraction and polyphase mixers, as well as virtual local oscillator TM (VLO) mixing signals. VLO mixing signals are signal pairs which emulate local oscillator signals by means of complementary mono-tonal and multi-tonal mixing signals.

    摘要翻译： 本发明一般涉及通信，更具体地涉及用于产生用于RF（射频）信号的上变频和下变频的本地振荡器信号的方法和装置。 如果本地振荡器（LO）信号泄漏到接收信号路径中，调制器和解调器的设计中的主要问题。 本发明提出了许多高度可积分的电路，其解决了LO泄漏问题，使用作用于振荡器信号的再生分压器电路，该振荡器信号以期望LO信号的频率的多个或几分之一运行，以产生同相（I）和 正交（Q）混频信号。 这些电路的实施例也使用谐波减法和多相混频器，以及虚拟本地振荡器TM（VLO）混频信号。 VLO混合信号是通过互补单声道和多音调混合信号模拟本地振荡器信号的信号对。

    Transceiver interface architecture
    3.
    发明申请
    Transceiver interface architecture 审中-公开
    收发器接口架构

    公开(公告)号：US20070223615A1

    公开(公告)日：2007-09-27

    申请号：US11387925

    申请日：2006-03-24

    申请人： Sathwant Dosanjh ,  Tajinder Manku ,  Alan Holden

    发明人： Sathwant Dosanjh ,  Tajinder Manku ,  Alan Holden

    IPC分类号： H04L1/02 ,  H04B1/00

    CPC分类号： H04B1/50 ,  H04B1/0057

    摘要： A transceiver interface architecture where the same RF transceiver can be used in wireless devices that support any number of standards, with or without receive diversity implementation. Each input port of the RF transceiver can be shared by a number of input signals, which effectively expands the number of available input ports. Input port sharing can be realized with virtual ports that receive two or more input signals and selectively pass one signal to the physical input port. The use of virtual ports allows for flexible wireless design implementations using the same RF transceiver, and in particular, for receive diversity implementations that inherently require dedicated input ports. The use of low cost and small area virtual ports obviates the need for larger and more costly RF receivers.

    摘要翻译： 收发器接口架构，其中相同的RF收发器可以在支持任何数量的标准的无线设备中使用，具有或不具有接收分集实现。 RF收发器的每个输入端口可以由多个输入信号共享，这有效地扩展了可用输入端口的数量。 可以通过接收两个或更多输入信号的虚拟端口实现输入端口共享，并选择性地将一个信号传递到物理输入端口。 虚拟端口的使用允许使用相同的RF收发器的灵活的无线设计实现，并且特别地，用于固有地需要专用输入端口的接收分集实现。 使用低成本和小面积的虚拟端口消除了对更大和更昂贵的RF接收机的需要。