公开(公告)号：US20100067630A1

公开(公告)日：2010-03-18

申请号：US12553687

申请日：2009-09-03

Applicant: Francesco GATTA ,  Ramon Gomez ,  Leonard Dauphinee ,  Young Joon Shin ,  Hanli Zou ,  Massimo Brandolini ,  Giuseppe Cusmai

Inventor： Francesco GATTA ,  Ramon Gomez ,  Leonard Dauphinee ,  Young Joon Shin ,  Hanli Zou ,  Massimo Brandolini ,  Giuseppe Cusmai

IPC: H04B1/10

CPC classification number: H04N5/455 ,  H04N5/45 ,  H04N21/4263 ,  H04N21/4382

Abstract: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.

Abstract translation: 提供了用于解调包含在射频（RF）输入信号的频带限制部分内的多个连续信道的系统和方法。 在一个实施例中，RF输入信号的频带限制部分被下变频为基带。 在下转换之后，频带限制部分与带限制部分的镜像重叠在基带处。 下变频信号内的多个相邻信道类似地在基带处重叠，并且随后占据基本上等于下变频所需的一半的带宽。 在数字域中进行图像抑制以恢复多个重叠信道中的每一个。

公开(公告)号：US20090168924A1

公开(公告)日：2009-07-02

申请号：US12337046

申请日：2008-12-17

Applicant: Ramon Gomez ,  Tommy Yu

Inventor： Ramon Gomez ,  Tommy Yu

IPC: H04L27/06

CPC classification number: H04B1/18

Abstract: A frequency translation module for a broadband multi-channel communication system may include an analog signal converter, a digital channel selection device, and a digital-to-analog (D/A) converter. The analog signal converter is configured to receive a plurality of analog signals, to select analog signals residing in a predefined frequency band, and to convert each of the selected analog signals into a digital signal. The digital channel selection device is configured to process digital signals corresponding to the selected analog signals and to generate a composite output of digital signals representative of the selected analog signals. The D/A converter is configured to translate the composite output to an analog signal output decodable by a receiver. Further, the frequency translation module may include a mixer configured to upconvert the analog signal output to a frequency decodable by the receiver.

Abstract translation: 用于宽带多通道通信系统的频率转换模块可以包括模拟信号转换器，数字通道选择装置和数模（D / A）转换器。 模拟信号转换器被配置为接收多个模拟信号，以选择驻留在预定频带中的模拟信号，并将所选择的模拟信号中的每一个转换为数字信号。 数字通道选择装置被配置为处理对应于所选择的模拟信号的数字信号，并产生表示所选模拟信号的数字信号的复合输出。 D / A转换器被配置为将复合输出转换成可由接收器解码的模拟信号输出。 此外，频率转换模块可以包括配置成将模拟信号输出上变频到由接收机解码的频率的混频器。

公开(公告)号：US07382202B2

公开(公告)日：2008-06-03

申请号：US11540662

申请日：2006-10-02

Applicant: Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

Inventor： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

IPC: H03L7/00 ,  H03B21/00 ,  H03B27/00

CPC classification number: H04B1/28 ,  H04B1/0014 ,  H04B1/0032 ,  H04B1/0039

Abstract: An apparatus provides a local oscillator signal based on a selected channel of an RF input signal. For example, the apparatus can set a frequency of the local oscillator signal based on the selected channel. Digital circuitry can be used to generate the local oscillator signal. For instance, the digital circuitry can provide a digital representation of the local oscillator signal. A DAC can convert the digital representation to an analog signal. Other circuitry can provide first and second quadrature components of the local oscillator signal, based on the analog signal.

Abstract translation: 一种装置基于RF输入信号的所选择的信道提供本地振荡器信号。 例如，该装置可以基于所选择的信道来设置本地振荡器信号的频率。 数字电路可用于产生本地振荡器信号。 例如，数字电路可以提供本地振荡器信号的数字表示。 DAC可以将数字表示转换为模拟信号。 其他电路可以基于模拟信号提供本地振荡器信号的第一和第二正交分量。

公开(公告)号：USD559589S1

公开(公告)日：2008-01-15

申请号：US29235319

申请日：2005-07-29

Applicant: Doreen Andrea Stellon-Solimine ,  Rona Edelman ,  Ramon Gomez ,  Dorothy Horn ,  John Francis Jeffrey ,  Robyn Lisa Spritzer ,  Jonathan Loew

Designer： Doreen Andrea Stellon-Solimine ,  Rona Edelman ,  Ramon Gomez ,  Dorothy Horn ,  John Francis Jeffrey ,  Robyn Lisa Spritzer ,  Jonathan Loew

公开(公告)号：US07154346B2

公开(公告)日：2006-12-26

申请号：US10902465

申请日：2004-07-30

Applicant: Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

Inventor： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

IPC: H03L7/00 ,  H03B21/00 ,  H03B27/00

CPC classification number: H04B1/28 ,  H04B1/0014 ,  H04B1/0032 ,  H04B1/0039

Abstract: An apparatus provides a local oscillator signal based on a selected channel of an RF input signal. For example, the apparatus can set a frequency of the local oscillator signal based on the selected channel. Digital circuitry can be used to generate the local oscillator signal. For instance, the digital circuitry can provide a digital representation of the local oscillator signal. A DAC can convert the digital representation to an analog signal. Other circuitry can provide first and second quadrature components of the local oscillator signal, based on the analog signal.

Abstract translation: 一种装置基于RF输入信号的所选择的信道提供本地振荡器信号。 例如，该装置可以基于所选择的信道来设置本地振荡器信号的频率。 数字电路可用于产生本地振荡器信号。 例如，数字电路可以提供本地振荡器信号的数字表示。 DAC可以将数字表示转换为模拟信号。 其他电路可以基于模拟信号提供本地振荡器信号的第一和第二正交分量。

公开(公告)号：US20060238256A1

公开(公告)日：2006-10-26

申请号：US11417073

申请日：2006-05-02

Applicant: Arya Behzad ,  Klaas Bult ,  Ramon Gomez ,  Chi-Hung Lin ,  Tom Kwan ,  Oscar Agazzi ,  John Creigh ,  Mehdi Hatamian ,  David Kruse ,  Arthur Abnous ,  Henry Samueli

Inventor： Arya Behzad ,  Klaas Bult ,  Ramon Gomez ,  Chi-Hung Lin ,  Tom Kwan ,  Oscar Agazzi ,  John Creigh ,  Mehdi Hatamian ,  David Kruse ,  Arthur Abnous ,  Henry Samueli

IPC: H03G3/00

CPC classification number: H03F1/32 ,  H03F3/347 ,  H03F3/505 ,  H03F2200/211 ,  H03F2200/252 ,  H03F2200/421 ,  H03F2200/513 ,  H03G1/0088 ,  H03G3/001 ,  H03G3/3036 ,  H03G3/3052 ,  H03G5/10 ,  H03H11/245

Abstract: Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.

公开(公告)号：US20060026659A1

公开(公告)日：2006-02-02

申请号：US11133275

申请日：2005-05-20

Applicant: Donald McMullin ,  Lawrence Burns ,  Leonard Dauphinee ,  Ramon Gomez ,  Loke Tan

Inventor： Donald McMullin ,  Lawrence Burns ,  Leonard Dauphinee ,  Ramon Gomez ,  Loke Tan

IPC: H04N7/173

CPC classification number: H04N21/6168 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/4263

Abstract: The present invention is an integrated cable modem tuner. In one embodiment, the upstream path and the downstream path are integrated on a common semiconductor substrate. The down-stream path can include a TV tuner and digital receiver portion that is integrated on a common semiconductor substrate with the power amplifier of the upstream path. In another embodiment, the TV tuner is implemented on a first semiconductor substrate and the digital receiver portion and the power amplifier are configured on a second semiconductor substrate. However, the two substrates are mounted on a common carrier so that the cable modem appears to be a single chip configuration to the user.

公开(公告)号：US20060023813A1

公开(公告)日：2006-02-02

申请号：US10902477

申请日：2004-07-30

Applicant: Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

Inventor： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

IPC: H03D3/18 ,  H04L27/14

CPC classification number: H04L27/38 ,  H03D3/009 ,  H03J1/005 ,  H04L2027/0016

Abstract: A receiver to process a RF input signal having a plurality of channels includes a direct down conversion circuit, a demodulation circuit, and a local oscillator circuit. The direct down conversion circuit provides a downconverted signal based on the RF input signal and a local oscillator signal. The demodulation circuit receives the downconverted signal and provides a demodulated signal. The local oscillator circuit sets a frequency of the local oscillator signal based on a selected channel of the plurality of channels.

公开(公告)号：US20050253663A1

公开(公告)日：2005-11-17

申请号：US10843565

申请日：2004-05-12

Applicant: Ramon Gomez ,  Chin Yong

Inventor： Ramon Gomez ,  Chin Yong

IPC: H01P5/12 ,  H04B1/10 ,  H04H1/00 ,  H04H40/18 ,  H04N5/44 ,  H04N5/45 ,  H04N5/50

CPC classification number: H04N5/4446 ,  H04B1/1036 ,  H04H40/18 ,  H04N5/45 ,  H04N5/50 ,  H04N21/4263 ,  H04N21/4316

Abstract: Multi-tuner receivers with cross talk reduction are disclosed. In one embodiment, a multi-tuner receiver with cross talk reduction includes a low noise amplifier, a set of interstage filters and a set of corresponding tuners. In an alternative embodiment, a multi-tuner receiver with cross talk reduction includes a passive splitter, a set of interstage filters and a set of corresponding tuners. The interstage filters can be low-pass, high-pass or band-pass filters depending on the particular frequency range of interest. Typical embodiments can have two or three tuners, however, the invention applies to multi-receiver tuners with more than three tuners. The multi-tuner receivers can be used within television, cable set top boxes and other devices that receive multiple video signals.

Abstract translation: 公开了具有串扰减少的多调谐器接收机。 在一个实施例中，具有串扰减少的多调谐器接收器包括低噪声放大器，一组级间滤波器和一组相应的调谐器。 在替代实施例中，具有串扰减少的多调谐器接收器包括无源分离器，一组级间滤波器和一组相应的调谐器。 根据感兴趣的特定频率范围，级间滤波器可以是低通，高通或带通滤波器。 典型的实施例可以具有两个或三个调谐器，然而，本发明适用于具有三个以上调谐器的多接收器调谐器。 多调谐器接收器可用于电视机，有线机顶盒和其他接收多个视频信号的设备。

公开(公告)号：US20050195335A1

公开(公告)日：2005-09-08

申请号：US10882293

申请日：2004-07-02

Applicant: Ramon Gomez ,  Charles Brooks ,  Leonard Dauhinee

Inventor： Ramon Gomez ,  Charles Brooks ,  Leonard Dauhinee

IPC: H04N7/16

CPC classification number: H04N21/4263 ,  H04N5/46 ,  H04N5/50

Abstract: A front end circuit for a television receiver includes a demultiplexer for inputting a multi-band signal from a signal source and separating the multi-band signal into corresponding bands. A plurality of amplifiers adjust gain on signals corresponding to the bands. A multiplexer combines outputs of the amplifiers into a gain-adjusted signal. A plurality of switches direct selected bands to corresponding tuners. The amplifiers are low noise amplifiers. The amplifiers adjust gain between the bands so as to have similar signal strength in the bands. A cable TV input may also be used, wherein the switches also direct signals from the cable TV to the corresponding tuners. Each amplifier can output two (or more) identical signals for its corresponding band, the multiplexer can be a dual multiplexer, and an output of the multiplexer includes only bands selected for direction to the tuners. The signal source comprises any of an broadcast channel received from an antenna, a cable TV channel received from a cable line, and a combination of the two.

Abstract translation: 电视接收机的前端电路包括用于从信号源输入多频带信号并将多频带信号分离成相应频带的解复用器。 多个放大器调整对应于该频带的信号的增益。 多路复用器将放大器的输出组合成增益调整信号。 多个开关将选择的频带直接引导到相应的调谐器。 放大器是低噪声放大器。 放大器调节频带之间的增益，以便在频带中具有相似的信号强度。 还可以使用有线电视输入，其中开关还将信号从有线电视引导到相应的调谐器。 每个放大器可以为其相应的频带输出两个（或更多）相同的信号，多路复用器可以是双重复用器，并且多路复用器的输出仅包括为调谐器的方向选择的频带。 信号源包括从天线接收的广播信道，从电缆线路接收的有线电视频道以及两者的组合中的任何一个。