公开(公告)号：US09130646B2

公开(公告)日：2015-09-08

申请号：US14034868

申请日：2013-09-24

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiroaki Hoshino

IPC: H04L27/00 ,  H04B1/26

CPC classification number: H04B1/26 ,  H03D7/163 ,  H03L7/18

Abstract: According to some embodiments, there is provided a signal generating device, including a signal generator and a local signal generating unit. The signal generator generates a signal of a fixed frequency. The local signal generating unit generates, based on the signal of the fixed frequency, a first local signal to convert a frequency of a first signal, and a second local signal to convert a frequency of a second signal. The second signal is a signal resulting from that the first signal is subjected to frequency conversion based on the first local signal and has a frequency different from the first local signal.

Abstract translation: 根据一些实施例，提供了一种包括信号发生器和本地信号发生单元的信号发生装置。 信号发生器产生固定频率的信号。 本地信号生成单元基于固定频率的信号生成用于转换第一信号的频率的第一本地信号和用于转换第二信号的频率的第二本地信号。 第二信号是由第一信号基于第一本地信号进行频率转换而得到的信号，并且具有与第一本地信号不同的频率。

公开(公告)号：USRE44326E1

公开(公告)日：2013-06-25

申请号：US13288848

申请日：2011-11-03

Applicant: Theodore Calderone ,  Paul M. Cook ,  Mark J. Foster

Inventor： Theodore Calderone ,  Paul M. Cook ,  Mark J. Foster

IPC: G06F3/16

CPC classification number: H04N21/23106 ,  G06Q20/102 ,  G06Q30/04 ,  G06Q30/0603 ,  G10L15/30 ,  H03D7/163 ,  H04L7/02 ,  H04L45/06 ,  H04M3/385 ,  H04M3/4936 ,  H04M7/006 ,  H04M2201/40 ,  H04N5/4403 ,  H04N7/17318 ,  H04N7/17336 ,  H04N21/233 ,  H04N21/23805 ,  H04N21/2543 ,  H04N21/2743 ,  H04N21/42203 ,  H04N21/42204 ,  H04N21/4415 ,  H04N21/4622 ,  H04N21/47202 ,  H04N21/478 ,  H04N21/4782 ,  H04N21/8106 ,  H04N2005/4428

Abstract: A method and system of speech recognition presented by a back channel from multiple user sites within a network supporting cable television and/or video delivery is disclosed.

Abstract translation: 公开了一种由支持有线电视和/或视频传送的网络内的多个用户站点的后向信道呈现的语音识别方法和系统。

公开(公告)号：US20130094270A1

公开(公告)日：2013-04-18

申请号：US13806570

申请日：2011-04-14

Applicant: Masaki Kitsunezuka

Inventor： Masaki Kitsunezuka

IPC: H02M5/02

CPC classification number: H02M5/02 ,  H03D7/163 ,  H03D2200/0084

Abstract: The present invention is applied to a frequency converter used for a receiver. The frequency converter according to the present invention includes an LO signal generator (11) that generates an LO signal and outputs the LO signal; and a mixer (10) that multiplies a received signal that has been band-limited to a usable bandwidth of said receiver by the LO signal so as to convert the frequency of the received signal and outputs the resultant signal. Said LO signal generator is capable of varying a phase resolution.

Abstract translation: 本发明应用于用于接收机的变频器。 根据本发明的变频器包括产生LO信号并输出​​LO信号的LO信号发生器（11）; 以及混频器（10），其将已经被限制的接收信号与所述接收机的可用带宽乘以LO信号，以便转换接收信号的频率并输出所得到的信号。 所述LO信号发生器能够改变相位分辨率。

公开(公告)号：US08315338B2

公开(公告)日：2012-11-20

申请号：US13043433

申请日：2011-03-08

Applicant: Shigenori Hayase ,  Kazuyuki Hori

Inventor： Shigenori Hayase ,  Kazuyuki Hori

IPC: H04L27/00

CPC classification number: H03D7/163 ,  H03D3/245 ,  H04L27/3863

Abstract: To detect phase mismatches between in-phase and quadrature signals of a quadrature demodulator. The phase mismatches can be detected using the signals obtained by removing high frequency components of output of a multiplier by a low pass filter, the output being the product of the in-phase signals of which low frequency components are removed by a first high pass filter by the quadrature signals of which low frequency components are removed by a second high pass filter.

Abstract translation: 检测正交解调器的同相和正交信号之间的相位失配。 可以使用通过低通滤波器去除乘法器的输出的高频分量而获得的信号来检测相位失配，该输出是通过第一高通滤波器去除低频分量的同相信号的乘积 通过第二高通滤波器去除低频分量的正交信号。

公开(公告)号：US20120274367A1

公开(公告)日：2012-11-01

申请号：US13391893

申请日：2010-08-24

Applicant: Kiat Seng Yeo ,  Jian Guo Ma

Inventor： Kiat Seng Yeo ,  Jian Guo Ma

IPC: H03B19/00

CPC classification number: H04B1/28 ,  H03D7/163 ,  H03D7/166 ,  H04B15/04 ,  H04B2215/064

Abstract: In an embodiment, a front-end transceiver may be provided. The front-end transceiver may include a receiver path, including a first receiver frequency converter configured to convert a received signal with a receiver frequency into a first receiver intermediate signal with a first receiver intermediate frequency; and a receiver direct conversion stage coupled to the first receiver frequency converter so as to receive the first receiver intermediate signal. The front-end transceiver may further include an oscillator signal generator respectively coupled to the first receiver frequency converter and to the receiver direct conversion stage so as to provide a first oscillator signal with a first oscillator frequency to the first receiver frequency converter and a first stabilizing signal with a first stabilizing frequency to the receiver direct conversion stage; wherein the oscillator signal generator may be configured so that the first oscillator frequency of the first oscillator signal may be selected such that any integer multiple of the first oscillator frequency of the first oscillator signal may be different from any integer multiple of the receiver frequency of the received signal. The front-end transceiver may also include a transmitter path.

Abstract translation: 在一个实施例中，可以提供前端收发器。 前端收发器可以包括接收器路径，包括被配置为将具有接收机频率的接收信号转换为具有第一接收机中频的第一接收机中间信号的第一接收机频率转换器; 以及接收器直接转换级，其耦合到所述第一接收机频率转换器，以便接收所述第一接收机中间信号。 前端收发器还可以包括分别耦合到第一接收机频率转换器和接收机直接转换级的振荡器信号发生器，以便向第一接收机频率转换器提供具有第一振荡器频率的第一振荡器信号和第一稳定 信号具有第一稳定频率到接收机直接转换级; 其中振荡器信号发生器可以被配置为使得可以选择第一振荡器信号的第一振荡器频率，使得第一振荡器信号的第一振荡器频率的任何整数倍可以不同于第一振荡器信号的接收机频率的任何整数倍 接收信号。 前端收发器还可以包括发射机路径。

公开(公告)号：US08027656B2

公开(公告)日：2011-09-27

申请号：US11860207

申请日：2007-09-24

Applicant: Ahmadreza Rofougaran ,  Maryam Rofougaran

Inventor： Ahmadreza Rofougaran ,  Maryam Rofougaran

IPC: H04B1/26

CPC classification number: H03D7/163 ,  H04B1/0082 ,  H04B1/04 ,  H04B1/16 ,  H04B1/408

Abstract: Aspects of a method and system for a distributed transceiver for high frequency applications may include generating a second signal from a first signal by frequency-translating the first signal via a plurality of conversion stages. Each of the plurality of conversion stages may frequency-translate a corresponding input signal by a local oscillator frequency or by a fraction of said local oscillator frequency. The first signal may be the corresponding input signal to an initial stage of a the plurality of conversion stages, an output signal of a previous one of the plurality of conversion stages may be the corresponding input signal to a subsequent one of the plurality of conversion stages, and the second signal may be an output signal of a final stage of the plurality of conversion stages.

Abstract translation: 用于高频应用的分布式收发器的方法和系统的方面可以包括通过经由多个转换级频率转换第一信号从第一信号产生第二信号。 多个转换级中的每一个可以通过本地振荡器频率或所述本地振荡器频率的一部分对相应的输入信号进行频率平移。 第一信号可以是到多个转换级的初始阶段的相应输入信号，多个转换级中的前一个转换级的输出信号可以是到多个转换级中的后续的一个转换级的相应输入信号 并且第二信号可以是多个转换级的最后级的输出信号。

公开(公告)号：US20110158353A1

公开(公告)日：2011-06-30

申请号：US13043433

申请日：2011-03-08

Applicant: Shigenori HAYASE ,  Kazuyuki Hori

Inventor： Shigenori HAYASE ,  Kazuyuki Hori

IPC: H04L27/00

CPC classification number: H03D7/163 ,  H03D3/245 ,  H04L27/3863

Abstract: To detect phase mismatches between in-phase and quadrature signals of a quadrature demodulator. The phase mismatches can be detected using the signals obtained by removing high frequency components of output of a multiplier by a low pass filter, the output being the product of the in-phase signals of which low frequency components are removed by a first high pass filter by the quadrature signals of which low frequency components are removed by a second high pass filter.

Abstract translation: 检测正交解调器的同相和正交信号之间的相位失配。 可以使用通过低通滤波器去除乘法器的输出的高频分量而获得的信号来检测相位失配，该输出是通过第一高通滤波器去除低频分量的同相信号的乘积 通过第二高通滤波器去除低频分量的正交信号。

公开(公告)号：US07783271B2

公开(公告)日：2010-08-24

申请号：US09902193

申请日：2001-07-10

Applicant: John A. Samuels

Inventor： John A. Samuels

IPC: H01Q11/12 ,  H04B1/04 ,  H04B1/40 ,  H03D7/16 ,  H04B1/18

CPC classification number: H04B1/713 ,  H03D7/163 ,  H04B1/405 ,  H04B1/7136 ,  H04B2001/71365

Abstract: A method and apparatus for receiving a radio frequency signal and a method and apparatus for transmitting a modulation signal in a multiple channel radio system. The method for receiving the radio frequency signal involves mixing the radio frequency signal with a demodulating signal, tunable in frequency steps greater than the channel spacing of the multiple channel radio system to facilitate rapid frequency adjustments. The resultant intermediate signal is then mixed with another demodulating signal, tunable in relatively smaller frequency steps in order to select the channel containing the radio frequency signal.

Abstract translation: 一种用于接收射频信号的方法和装置，以及用于在多信道无线电系统中发送调制信号的方法和装置。 用于接收射频信号的方法包括将射频信号与可以在多频道无线电系统的信道间隔之上的频率步长调谐的解调信号进行混频以便于快速频率调整。 然后将所得到的中间信号与另一个解调信号混合，以相对较小的频率步长可调，以便选择包含射频信号的信道。

公开(公告)号：US20090061795A1

公开(公告)日：2009-03-05

申请号：US12167195

申请日：2008-07-02

Applicant: Chinh Doan ,  Sohrab Emami

Inventor： Chinh Doan ,  Sohrab Emami

IPC: H04B1/02

CPC classification number: H03J1/005 ,  H03D7/163

Abstract: A device has an RF mixer, an IF mixer module, a single synthesizer, a frequency divider, a single side band mixer and a frequency quadrupler. The single synthesizer generates a signal to the IF mixer module, the frequency divider, and the single side band mixer. The single side band mixer mixes signals from the single synthesizer and the frequency divider. The frequency quadrupler receives the output of the single side band mixer. The RF mixer is coupled to the frequency quadrupler and the IF mixer module.

Abstract translation: 器件具有RF混频器，IF混频器模块，单一合成器，分频器，单边带混频器和频率四倍频器。 单个合成器向IF混频器模块，分频器和单边带混频器生成信号。 单边带混频器混合来自单个合成器和分频器的信号。 频率四倍频器接收单边带混频器的输出。 RF混频器耦合到频率四倍和IF混频器模块。

公开(公告)号：US20080146184A1

公开(公告)日：2008-06-19

申请号：US11613079

申请日：2006-12-19

Applicant: David Dessert

Inventor： David Dessert

IPC: H04B1/10

CPC classification number: H04B1/1036 ,  H03D7/163 ,  H04B1/28 ,  H04B15/06

Abstract: A system for processing a signal comprises a tuner with a signal path that includes two or more mixers each of the mixers controlled by a respective local oscillator (LO); an analog-to-digital converter (ADC) in the signal path operable to produce a digital signal, wherein each of the local oscillators and the ADC are driven by clock signals; and a filter unit adapted to apply a notch filter to one or more spurious signals in the digital signal, wherein the notch filter is based at least in part on frequency multiplication factors in each of the clock signals.

Abstract translation: 一种用于处理信号的系统包括具有信号路径的调谐器，该信号路径包括由相应的本地振荡器（LO）控制的每个混频器的两个或更多个混频器; 所述信号路径中的模拟数字转换器（ADC）可操作以产生数字信号，其中所述本地振荡器和所述ADC中的每一个由时钟信号驱动; 以及适于将陷波滤波器应用于数字信号中的一个或多个寄生信号的滤波器单元，其中陷波滤波器至少部分地基于每个时钟信号中的倍频因子。