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    Phase-locked loop methods and structures for generating modulated communication signals with nonconstant envelopes
    1.
    发明授权
    Phase-locked loop methods and structures for generating modulated communication signals with nonconstant envelopes 有权
    用于产生具有非恒定信封的调制通信信号的锁相环方法和结构

    公开(公告)号：US06693969B1

    公开(公告)日：2004-02-17

    申请号：US09689288

    申请日：2000-10-11

    申请人： Antonio J. Montalvo ,  Simon Atkinson

    发明人： Antonio J. Montalvo ,  Simon Atkinson

    IPC分类号： H04L2700

    CPC分类号： H03C3/0991 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03C3/0983 ,  H03C5/00 ,  H03L7/185 ,  H04L27/20

    摘要： Phase-locked loop methods and structures are provided for generating modulated communication signals with nonconstant envelopes. These methods and structures realize the improved communication performance of nonconstant-envelope modulations with the upconversion advantages of phase-locked loops. The structures include transmitters in which a phase-locked loop is augmented with first and second feedforward paths that substantially restore phase and amplitude information to a transmit signal that is generated by a voltage-controlled oscillator of the phase-locked loop. The first feedforward path is configured to realize a path transfer function of s/Kv wherein the voltage-controlled oscillator has a transfer function of Kv/s. The second feedforward path extracts an envelope-correction signal from the modulated intermediate-frequency signal and a variable-gain output amplifier amplifies the transmit signal with a gain that responds to the envelope-correction signal.

    摘要翻译： 提供锁相环方法和结构用于生成具有非恒定信封的调制通信信号。 这些方法和结构通过锁相环的上转换优点实现了非恒定包络调制的改进的通信性能。 该结构包括发射机，其中通过第一和第二前馈路径来增加锁相环路，基本上将相位和幅度信息恢复到由锁相环路的压控振荡器产生的发射信号。 第一前馈路径被配置为实现s / Kv的路径传递函数，其中压控振荡器具有Kv / s的传递函数。 第二前馈路径从调制的中频信号中提取包络校正信号，并且可变增益输出放大器以对包络校正信号作出响应的增益来放大发射信号。

    Direct conversion circuit for radio frequency signals
    2.
    发明授权
    Direct conversion circuit for radio frequency signals 有权
    射频信号直接转换电路

    公开(公告)号：US06243569B1

    公开(公告)日：2001-06-05

    申请号：US09133781

    申请日：1998-08-12

    申请人： Simon Atkinson

    发明人： Simon Atkinson

    IPC分类号： H04B126

    CPC分类号： H03D3/007

    摘要： A direct conversion circuit for radio frequency signals is disclosed. The circuit includes a pair of quadrature related mixers, a phase shift unit, and a local oscillator. The pair of quadrature related mixers is coupled to a radio frequency signal input port for mixing down a radio frequency input signal. The phase shift unit is in communication with at least one of the pair of mixers for phase shifting a local oscillator signal. The local oscillator produces the local oscillator signal. The local oscillator includes a non-integer frequency multiplier for multiplying the frequency of a first voltage controlled oscillator signal by a non-integer value to produce the local oscillator signal.

    摘要翻译： 公开了一种用于射频信号的直接转换电路。 电路包括一对正交相关混频器，相移单元和本地振荡器。 正交相关混频器对耦合到射频信号输入端口，用于混合射频输入信号。 相移单元与用于相移本地振荡器信号的该对混频器中的至少一个通信。 本地振荡器产生本地振荡器信号。 本地振荡器包括用于将第一压控振荡器信号的频率乘以非整数值的非整数倍频器，以产生本地振荡器信号。

    BROADCAST RECEIVER SYSTEM
    3.
    发明申请
    BROADCAST RECEIVER SYSTEM 审中-公开
    广播接收系统

    公开(公告)号：US20110075049A1

    公开(公告)日：2011-03-31

    申请号：US12994388

    申请日：2009-01-08

    申请人： Keith Ahluwalia ,  Simon Atkinson ,  Dan Budin ,  Anthony Eaton

    发明人： Keith Ahluwalia ,  Simon Atkinson ,  Dan Budin ,  Anthony Eaton

    IPC分类号： H04N5/50

    CPC分类号： H04B1/0007

    摘要： A bridge circuit configured for connection between a tuner circuit capable of receiving broadcast analogue frequencies and a general purpose processor capable of demodulating the received broadcast signal, the circuit comprising: a tuner interface capable of receiving at least one signal component in analogue form from tuner circuitry; an analogue to digital converter connected to receive the analogue signal from the tuner interface and convert it to a digital signal for filtering; a digital filter connected to receive and filter the digital signal; an external digital interface; and a microcontroller arranged to receive control information via said external digital interface, wherein one or more or the analogue to digital converter and the digital filter is provided with a controllably variable clock input.

    摘要翻译： 一种桥接电路，被配置用于能够接收广播模拟频率的调谐器电路和能够解调所接收的广播信号的通用处理器之间的连接，所述电路包括：调谐器接口，能够从调谐器电路接收模拟形式的至少一个信号分量 ; 模数转换器被连接以从调谐器接口接收模拟信号并将其转换成数字信号进行滤波; 数字滤波器，连接接收和滤波数字信号; 外部数字接口; 以及布置成经由所述外部数字接口接收控制信息的微控制器，其中一个或多个或模数转换器和数字滤波器设置有可控制地变化的时钟输入。

    Oscillator network for radio receiver
    4.
    发明授权
    Oscillator network for radio receiver 失效
    无线电接收机的振荡器网络

    公开(公告)号：US4947141A

    公开(公告)日：1990-08-07

    申请号：US335087

    申请日：1989-05-17

    申请人： Simon Atkinson ,  Francis Carr

    发明人： Simon Atkinson ,  Francis Carr

    IPC分类号： H03B5/20 ,  H03B27/00 ,  H03D1/22 ,  H03D7/16 ,  H03H11/18 ,  H04B1/26

    CPC分类号： H03D7/166 ,  H03B27/00 ,  H03B5/20 ,  H03D1/2245 ,  H03H11/18 ,  H03B2200/0036 ,  H03B2200/0058 ,  H03B2200/0078

    摘要： A sinewave oscillator and a quadrature phase shift network fabricated as an integrated circuit for a Barber radio receiver comprising, in order that the network and oscillator be simply adjustable to provide an accurate 90.degree. shift and a sinewave of accurate frequency and high spectral purity, a first capacitance means (C1, C2; C4, C5) coupled to the input of a gyrator (G1; G2) comprising first and second amplifiers (10, 12; 22, 24) connected in feedback configuration with a capacitance (C3; C6) connected to the output of the first amplifier. The oscillator network may be adjusted by current control of transconductance of the amplifiers, and the amplifiers include input signal limiting means to limit the input signal to a linear operating region. An output load resistance (R) may be simulated using a further amplifier connected in feedback configuration.

    摘要翻译： PCT No.PCT / GB88 / 00574 Sec。 371日期1989年5月17日 102（e）日期1989年5月17日PCT提交1988年7月18日PCT公布。 公开号WO89 / 00791 日期：1989年1月26日。一种正弦波振荡器和正交相移网络，被制造为用于理发无线电接收机的集成电路，其包括：网络和振荡器可以简单地调节以提供精确的90°偏移和正弦波 耦合到回转器（G1; G2）的输入端的第一电容装置（C1，C2; C4，C5），包括以反馈构造连接的第一和第二放大器（10,12; 22,24） 连接到第一放大器的输出的电容（C3; C6）。 可以通过对放大器的跨导的电流控制来调整振荡器网络，并且放大器包括用于将输入信号限制到线性工作区域的输入信号限制装置。 可以使用在反馈配置中连接的另外的放大器来模拟输出负载电阻（R）。

    BROADCAST RECEIVER SYSTEM
    5.
    发明申请
    BROADCAST RECEIVER SYSTEM 审中-公开
    广播接收系统

    公开(公告)号：US20110075050A1

    公开(公告)日：2011-03-31

    申请号：US12994405

    申请日：2009-01-08

    申请人： Keith Ahluwalia ,  Simon Atkinson ,  Dan Budin ,  Anthony Eaton

    发明人： Keith Ahluwalia ,  Simon Atkinson ,  Dan Budin ,  Anthony Eaton

    IPC分类号： H04N5/50

    CPC分类号： H04B1/0007

    摘要： A broadcast receiver system comprising: a tuner circuit operable to detect a plurality of modulated radio frequency signals, including TV broadcast signals, and comprising at least one signal path each comprising an analogue mixer and analogue filter circuitry arranged respectively to frequency convert and pre-select received analogue signals; further circuitry comprising an analogue to digital converter and digital filter circuitry; a data interface to a software demodulation module operable to engage a general purpose processor of a computer in data demodulation and decoding functions; a control, interface; and a microcontroller arranged to receive control information from said computer via the control interface.

    摘要翻译： 一种广播接收机系统，包括：调谐器电路，可操作以检测包括TV广播信号的多个调制射频信号，并且包括至少一个信号路径，每个信号路径包括分别布置成频率转换和预选择的模拟混频器和模拟滤波器电路 接收模拟信号; 包括模数转换器和数字滤波器电路的进一步电路; 软件解调模块的数据接口，其可操作以使数据解调和解码功能中的计算机的通用处理器接合; 一个控制，界面; 以及布置成经由控制接口从所述计算机接收控制信息的微控制器。

    3G radio
    6.
    发明授权
    3G radio 有权
    3G无线电

    公开(公告)号：US07058364B2

    公开(公告)日：2006-06-06

    申请号：US10331383

    申请日：2002-12-30

    申请人： Simon Atkinson ,  Palle Birk

    发明人： Simon Atkinson ,  Palle Birk

    IPC分类号： H04B1/40

    CPC分类号： H04B1/006 ,  B01F5/246 ,  B01F7/00766 ,  B01J8/10 ,  B01J14/005 ,  B01J19/123 ,  B01J19/1887 ,  B01J2208/00539 ,  B01J2208/00548 ,  B01J2219/00162 ,  B01J2219/1946 ,  F28F13/00 ,  H04B1/30 ,  H04B1/403 ,  H04B1/406 ,  H04L27/142 ,  H04L27/148

    摘要： A radio transceiver suitable for use in a mobile telephone is provided. The transceiver is operable in dual modes so as to be able to operate with both GSM and UMTS systems. In a preferred embodiment the transmitter section receives base band signals and up-converts them to an intermediate frequency of approximately 450 MHz. This is then mixed with local oscillator frequency of approximately 1.35 GHz, such that a difference frequency allows operation in the GSM 850/950 MHz band, and the sum frequency allows operation in the GSM 1800/1900 MHz bands. The frequency addition allows operation in the UMTS band. The receiver portion of the transceiver comprises a direct conversion receiver for down-converting the received signal without use of an intermediate frequency.

    摘要翻译： 提供适用于移动电话的无线电收发器。 收发器可以在双重模式下操作，以便能够与GSM和UMTS系统一起操作。 在优选实施例中，发射机部分接收基带信号并将其上变频到大约450MHz的中频。 然后将其与大约1.35GHz的本地振荡器频率混合，使得差频允许在GSM 850/950MHz频带中操作，并且和频率允许在GSM 1800/1900MHz频带中操作。 频率添加允许在UMTS频带中操作。 收发器的接收器部分包括直接转换接收器，用于在不使用中频的情况下对接收信号进行下变频。

    Broadcast receiver system
    7.
    发明授权
    Broadcast receiver system 失效
    广播接收机系统

    公开(公告)号：US08310601B2

    公开(公告)日：2012-11-13

    申请号：US12994373

    申请日：2009-01-08

    申请人： Keith Ahluwalia ,  Simon Atkinson ,  Dan Budin ,  Anthony Eaton

    发明人： Keith Ahluwalia ,  Simon Atkinson ,  Dan Budin ,  Anthony Eaton

    IPC分类号： H04N5/50

    CPC分类号： H04N5/4401 ,  G06F11/0757 ,  H04N21/414

    摘要： An interface circuit configured to connect between (a) a broadcast receiver tuner and associated circuitry for the receiving and processing of broadcast radio frequency signals, and (b) a general purpose computer device programmed with software demodulation code configured to engage a general purpose processor in signal demodulation functions, the interface circuit comprising: a data interface comprising a packetisation buffer connected to receive (i) digital signal sample data from a signal path of the tuner and associated circuitry and (ii) indications of control settings which are applied to one or more configurable components during taking of the sample data, said packetisation buffer being operable to construct packets comprising blocks of sample data and header information carrying said control settings indications; a control interface configured to receive control instructions from tuner control code running on the general purpose computer device; and a microcontroller operable to receive the control instructions from the control interface and distribute corresponding control settings to configurable components of the tuner and associated circuitry, said microcontroller also being operable to supply indications of relevant control settings to said packetisation buffer.

    摘要翻译： 一种接口电路，被配置为在（a）广播接收机调谐器和用于接收和处理广播射频信号的相关电路之间连接，以及（b）用软件解调码编程的通用计算机设备，该软件解调码被配置为使通用处理器 所述接口电路包括：数据接口，包括分组缓冲器，其连接以从所述调谐器和相关电路的信号路径接收（i）数字信号采样数据;以及（ii）控制设置的指示，所述控制设置应用于一个或 所述分组缓冲器可操作以构建包括样本数据块和携带所述控制设置指示的报头信息的分组的分组; 控制接口，被配置为从在通用计算机设备上运行的调谐器控制代码接收控制指令; 以及微控制器，其可操作以从所述控制接口接收所述控制指令，并将相应的控制设置分配给所述调谐器和相关电路的可配置组件，所述微控制器还可操作以将相关控制设置的指示提供给所述分组缓冲器。

    Direct conversion circuit for radio frequency signals
    10.
    发明授权
    Direct conversion circuit for radio frequency signals 有权
    射频信号直接转换电路

    公开(公告)号：US06731923B2

    公开(公告)日：2004-05-04

    申请号：US09785383

    申请日：2001-02-16

    申请人： Simon Atkinson

    发明人： Simon Atkinson

    IPC分类号： H04B128

    CPC分类号： H03D3/007

    摘要： A direct conversion circuit for radio frequency signals is disclosed. The circuit includes a pair of quadrature related mixers, a phase shift unit, and a local oscillator. The pair of quadrature related mixers is coupled to a radio frequency signal input port for mixing down a radio frequency input signal. The phase shift unit is in communication with at least one of the pair of mixers for phase shifting a local oscillator signal. The local oscillator produces the local oscillator signal. The local oscillator includes a non-integer frequency multiplier for multiplying the frequency of a first voltage controlled oscillator signal by a non-integer value to produce the local oscillator signal.

    摘要翻译： 公开了一种用于射频信号的直接转换电路。 电路包括一对正交相关混频器，相移单元和本地振荡器。 正交相关混频器对耦合到射频信号输入端口，用于混合射频输入信号。 相移单元与用于相移本地振荡器信号的该对混频器中的至少一个通信。 本地振荡器产生本地振荡器信号。 本地振荡器包括用于将第一压控振荡器信号的频率乘以非整数值的非整数倍频器，以产生本地振荡器信号。