公开(公告)号：US08041320B2

公开(公告)日：2011-10-18

申请号：US12380289

申请日：2009-02-25

Applicant: James Digby Yarlet Collier

Inventor： James Digby Yarlet Collier

IPC: G01S1/00 ,  G01S5/14

CPC classification number: G01S19/36 ,  G01S19/33

Abstract: A radio receiver for receiving first signals of a first frequency spectrum having principal energy in a first frequency band and second signals of a second frequency spectrum having principal energy in second and third frequency bands, located on either side of the first frequency band, includes (i) an input for receiving an incoming signal; (ii) frequency shifting means for frequency shifting the incoming signal to form an intermediate frequency signal; and (iii) a filter for filtering the intermediate frequency signal. The filter has a frequency response that has a first passband and a second passband separated by a central stopband. A control unit for controlling the frequency shifting means has first and second modes for reception of the first and second signals. In the first mode, the control unit controls the frequency shifting means so as to frequency shift the incoming signal so that (a) the first frequency band of the incoming signal is shifted onto one of the first and second passbands and (b) one of the second and third frequency bands of the incoming signal is shifted onto the central stopband. In the second mode, the control unit controls the frequency shifting means so as to frequency shift the incoming signal so that (a) the second and third frequency bands of the incoming signal are shifted onto, respectively, the first and second passbands and (b) the first frequency band of the incoming signal is shifted onto the central stopband.

Abstract translation: 一种无线电接收机，用于接收在第一频带中具有主能的第一频谱的第一信号和在第二频带和第三频带中具有主能的第二频谱的第二信号的第一信号，所述第二频谱位于第一频带的任一侧，包括 i）用于接收输入信号的输入; （ii）用于对输入信号进行频移以形成中频信号的频移装置; 和（iii）用于对中频信号进行滤波的滤波器。 滤波器具有频率响应，该频率响应具有由中央阻带分开的第一通带和第二通带。 用于控制频移装置的控制单元具有用于接收第一和第二信号的第一和第二模式。 在第一模式中，控制单元控制频移装置，以便使输入信号频移，使得（a）输入信号的第一频带被转移到第一和第二通带之一上，并且（b） 输入信号的第二和第三频带被转移到中央阻带上。 在第二模式中，控制单元控制频移装置，以使输入信号频移，使得（a）输入信号的第二和第三频带分别转移到第一和第二通带上，并且（b ）输入信号的第一频带被转移到中央阻带上。

公开(公告)号：US20110188555A1

公开(公告)日：2011-08-04

申请号：US12851772

申请日：2010-08-06

Applicant: Kwangseok Han ,  Marco Bruno ,  Stuart Aitken ,  Steve Jones ,  Simon Chang ,  James Digby Yarlet Collier

Inventor： Kwangseok Han ,  Marco Bruno ,  Stuart Aitken ,  Steve Jones ,  Simon Chang ,  James Digby Yarlet Collier

IPC: H04B17/00

CPC classification number: H04B17/104 ,  H04B17/00

Abstract: Apparatus for controlling the generation of a DC signal at the output of a mixer, so that the DC signal is predictable, enabling a static offset compensation voltage to offset the DC signal. The apparatus comprises a mixer configured to receive a first and a second input signal, the mixer being such as to generate a first DC signal at the output of the mixer when the first and second input signal have the same frequency and a first relative phase, a phase detector for determining the relative phase of the first and second signals, and a phase modifier configured to modify the phase of the second signal relative to the first signal in dependence on the determination of the relative phase between the first and second signals such that the resulting DC signal at the output of the mixer is the first DC signal.

Abstract translation: 用于控制在混频器的输出处产生DC信号的装置，使得DC信号是可预测的，使静态偏移补偿电压能够抵消DC信号。 该装置包括配置成接收第一和第二输入信号的混频器，该混频器在第一和第二输入信号具有相同的频率和第一相对相位时，在混频器的输出处产生第一DC信号， 相位检测器，用于确定第一和第二信号的相对相位;以及相位修正器，被配置为根据第一和第二信号之间的相对相位的确定来相对于第一信号修改第二信号的相位，使得 混频器输出端产生的直流信号是第一个直流信号。

公开(公告)号：US07516169B2

公开(公告)日：2009-04-07

申请号：US10059260

申请日：2002-01-31

Applicant: James Digby Yarlet Collier

Inventor： James Digby Yarlet Collier

IPC: G06F1/02

CPC classification number: G06F7/588 ,  G06F7/582

Abstract: A method for generating random data, the method comprising repeatedly performing a series of operations, and the series of operations comprising processing a seed value to generate a resulting value for use as the seed value in a subsequent performance of the series of operations and to generate output random data; wherein the series of operations also comprises: determining whether a predetermined amount of new truly random data is available; and if such data is available, modifying the generation of at least the resulting value in dependence on the new truly random data.

公开(公告)号：US06968168B1

公开(公告)日：2005-11-22

申请号：US09618296

申请日：2000-07-18

Applicant: James Digby Yarlet Collier ,  Ian Michael Sabberton

Inventor： James Digby Yarlet Collier ,  Ian Michael Sabberton

IPC: H03B5/08 ,  H03B1/00 ,  H03B5/12 ,  H03L7/099 ,  H03L7/18 ,  H04B7/00

CPC classification number: H03L7/099 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2201/0266 ,  H03J2200/10

Abstract: A variable frequency oscillator comprising: an oscillatory circuit for generating a periodic output dependent on the capacitance between a first node and a second node of the circuit, and having a capacitative element connected between the first node and the second node; the capacitative element comprising: a variable capacitance unit, the capacitance of which is variable for varying the frequency of the output and a plurality of finite capacitances each being selectively connectable in parallel with the variable capacitance unit between the first node and the second node to trim the frequency of the output.

Abstract translation: 一种可变频率振荡器，包括：振荡电路，用于根据电路的第一节点和第二节点之间的电容产生周期性输出，并且具有连接在第一节点和第二节点之间的电容元件; 所述电容元件包括：可变电容单元，其电容可变以改变输出的频率;以及多个有限电容，每个有选择的电容可选地可与第一节点和第二节点之间的可变电容单元并联，以修整 输出频率。

公开(公告)号：US06680639B1

公开(公告)日：2004-01-20

申请号：US10048714

申请日：2002-06-11

Applicant: James Digby Yarlet Collier ,  Justin David John Penfold

Inventor： James Digby Yarlet Collier ,  Justin David John Penfold

IPC: H03H1116

CPC classification number: H03H11/22 ,  H03H11/18 ,  H03L7/0812

Abstract: The present invention is directed to a phase shifting arrangement for generating a set of mutually orthogonal signals. In one aspect, the invention provides a system that includes a phase shifting unit for receiving an input signal. The phase shifting unit includes a first phase shift circuit for generating a first output signal phase-shifted by a first amount with respect to the input signal, a second phase shift circuit for generating a second output signal phase-shifted by a second amount with respect to the input signal, and a third phase shift circuit for generating a third output signal phase-shifted by a third amount with respect to the input signal.

Abstract translation: 本发明涉及一种用于产生一组相互正交信号的相移装置。 一方面，本发明提供一种包括用于接收输入信号的相移单元的系统。 相移单元包括第一相移电路，用于产生相对于输入信号相移第一量的第一输出信号;第二相移电路，用于产生相对于第二量相移的第二输出信号 以及第三相移电路，用于产生相对于输入信号相移三分之一的第三输出信号。