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公开(公告)号：US06553216B1
公开(公告)日：2003-04-22
申请号：US08572550
申请日：1995-12-14
IPC分类号： H04B118
CPC分类号： H03F3/191 , H03D7/18 , H03F2200/168 , H03H7/12 , H03H7/1766 , H03H7/1775 , H03J3/08
摘要： A tuner includes a tunable filter for selecting a desired RF signal in response to a tuning control signal and a tunable image trap for rejecting the undesired image signal corresponding to the desired RF signal responsive to the tuning control signal coupled in cascade between an RF amplifier and a mixer. The tunable trap also serves as an impedance transformation element between the tunable filter and said mixer. The arrangement is particularly useful in a tuner in which the frequency range of the local oscillator signal is below the frequency range of the received RF signals.
摘要翻译： 调谐器包括可调谐滤波器，用于响应于调谐控制信号选择所需的RF信号，以及可调谐图像陷波器，用于拒绝对应于所需RF信号的不需要的图像信号，所述调谐控制信号响应于串联耦合在RF放大器和 搅拌机 可调谐阱还用作可调滤波器和所述混频器之间的阻抗变换元件。 该装置在本地振荡器信号的频率范围低于所接收的RF信号的频率范围的调谐器中特别有用。
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公开(公告)号：US08634029B2
公开(公告)日：2014-01-21
申请号：US12312662
申请日：2006-12-04
IPC分类号： H04N5/44
CPC分类号： H04N5/50 , H03H7/463 , H04N5/45 , H04N21/4263 , H04N21/4316 , H04N21/4347
摘要： The present invention includes an apparatus for distributing a received modulated RF signal to a plurality of tuners including a diplexer device. The diplexer device includes a plurality of filter circuits adapted to direct respective portions of the received modulated RF the signal to respective tuner devices. In an illustrated embodiment, the tuner devices supply tuned signals to a picture in picture display device. Also disclosed is a method of receiving a modulated ready of frequency signal and routing portions of the received signal to respective tuner devices using filter devices in a diplexer or multiplexer configuration.
摘要翻译： 本发明包括一种用于将接收的调制RF信号分配到包括双工器装置的多个调谐器的装置。 双工器装置包括多个滤波器电路，其适于将接收到的经调制的RF的各个部分的信号引导到相应的调谐器装置。 在所示实施例中，调谐器装置将调谐信号提供给画中画显示装置。 还公开了一种接收调制好的频率信号的方法，并且使用双工器或复用器配置中的滤波器装置将接收到的信号的部分路由到相应的调谐器装置。
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3.发明授权Apparatus and method for optimizing the level of RF signals based upon the information stored on a memory 有权基于存储在存储器中的信息来优化RF信号的电平的装置和方法公开(公告)号：US07710503B2
公开(公告)日：2010-05-04
申请号：US10380717
申请日：2001-09-25
CPC分类号： H04B1/109 , H03G3/3052
摘要： A signal processing arrangement has a signal source for providing a radio frequency (RF) signal, a signal output point, and first control means coupled between the signal source and the signal output point for controlling the selection of a low noise figure amplifier in response to the magnitude of an RF signal on a tuned channel frequency and the magnitude of an RF signal in the vicinity of said tuned channel frequency.
摘要翻译： 信号处理装置具有用于提供射频（RF）信号，信号输出点和耦合在信号源和信号输出点之间的第一控制装置的信号源，用于响应于信号源和信号输出点而控制低噪声系数放大器的选择 调谐信道频率上的RF信号的大小以及所述调谐信道频率附近的RF信号的大小。
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公开(公告)号：US06424285B1
公开(公告)日：2002-07-23
申请号：US09341028
申请日：1999-11-12
IPC分类号： G08C1912
CPC分类号： G08C17/02 , G08C23/04 , G08C2201/63
摘要： A communications system for transmitting and receiving remote control messages in an electronic remote control system. The present communications system uses a remote control message protocol which is particularly suitable for transmitting RF remote control messages with IR remote control messages in a time multiplexed fashion, wherein the RF remote control messages are transmitted during the pause intervals between IR remote control message transmission intervals. The present remote control message protocol includes a start sequence, comprising a MARK pulse and a SPACE of about equal duration, followed by a plurality of data fields. Each data field ends with an End of Field marker and the remote control message ends with an End of Message marker. The plurality of data fields comprises an addressing data field for specifying the destination device, a security code data field for allowing a specific remote control transmitter to control a specific destination device, a status field for specifying various status codes associated with the remote control message, a keycode field for carrying the remote control message payload, and a checksum field for verifying the transmission integrity of the remote control message. A remote control message based on the present message protocol may be expanded to include additional data fields and to expand pre-existing data fields.
摘要翻译： 一种用于在电子遥控系统中发送和接收远程控制消息的通信系统。 本通信系统使用远程控制消息协议，其特别适用于以时分多路复用方式发送具有IR遥控消息的RF遥控消息，其中RF远程控制消息在IR远程控制消息传输间隔 。 本遥控消息协议包括起始序列，其包括大约相等持续时间的MARK脉冲和SPACE，随后是多个数据字段。 每个数据字段以“终结点”标记结束，远程控制消息以“消息结束”标记结束。 多个数据字段包括用于指定目的地设备的寻址数据字段，用于允许特定遥控发射机控制特定目的地设备的安全代码数据字段，用于指定与遥控消息相关联的各种状态代码的状态字段， 用于承载远程控制消息有效载荷的键码字段和用于验证遥控消息的传输完整性的校验和字段。 可以扩展基于当前消息协议的远程控制消息以包括附加数据字段并扩展预先存在的数据字段。
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5.发明授权Tuner input filter with electronically adjustable response for adapting to antenna characteristic 有权调谐器输入滤波器，具有电子可调响应，适应天线特性公开(公告)号：US07668519B2
公开(公告)日：2010-02-23
申请号：US10512525
申请日：2003-04-25
IPC分类号： H04B1/16
CPC分类号： H04N5/50 , H03J1/0066 , H03J3/185 , H03J3/20 , H03J2200/28 , H04N5/52 , H04N21/4383 , H04N21/44209
摘要： A system, apparatus and/or method provides frequency response adjustment of an RF input filter of an RF tuner based on impedance of an antenna system that is providing reception of RF signals to the RF tuner. The frequency response adjustment is preferably accomplished dynamically and/or with respect to each frequency tuned. Particularly, the system, method and/or apparatus provides compensation at the RF tuner level for mistuning effects produced on the RF tuner by antenna system impedance presented at the antenna input that is other than a designed for impedance. Frequency response of an RF input filter for the RF tuner is electronically adjustable with an independent or semi-independent control voltage signal based on one or more measured parameters of a tuning frequency. Frequency response adjustment may include adjustment of a center frequency of the RF input filter bandpass frequency range and/or altering the bandpass frequency range of the RF input filter. The subject invention expands the capability of an RF signal receiver, particularly one using at least one electronically adjustable RF filter at the input of an electronic alignment type tuner.
摘要翻译： 系统，装置和/或方法基于向RF调谐器提供RF信号的接收的天线系统的阻抗来提供RF调谐器的RF输入滤波器的频率响应调整。 频率响应调整优选地动态地和/或关于调谐的每个频率实现。 特别地，系统，方法和/或设备在RF调谐器级别提供对在RF调谐器上产生的失谐效应的补偿，该天线系统阻抗呈现在除了被设计为阻抗之外的天线输入处。 用于RF调谐器的RF输入滤波器的频率响应可以使用基于调谐频率的一个或多个测量参数的独立或半独立控制电压信号进行电子调节。 频率响应调整可以包括调整RF输入滤波器带通频率范围的中心频率和/或改变RF输入滤波器的带通频率范围。 本发明扩展了RF信号接收机的能力，特别是在电子对准型调谐器的输入处使用至少一个电子可调节RF滤波器的能力。
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公开(公告)号：US20090285336A1
公开(公告)日：2009-11-19
申请号：US12227678
申请日：2006-06-16
IPC分类号： H04L27/06
摘要： The disclosed embodiments relate to a system that processes a received signal. An exemplary embodiment of the system comprises a receiver circuit that is adapted to receive the received signal and separate an out-of-band data signal corresponding to an out-of-band frequency spectrum from the received signal, an analog-to-digital (A/D) converter that converts the out-of-band data signal to a digitized out-of-band frequency spectrum signal, and a circuit that is adapted to identify data corresponding to an out-of-band data channel within the digitized out-of-band frequency spectrum signal.
摘要翻译： 所公开的实施例涉及处理接收信号的系统。 系统的示例性实施例包括接收机电路，其适于接收所接收的信号，并且从接收信号中分离对应于带外频谱的带外数据信号，模数（ A / D）转换器，其将带外数据信号转换为数字化的带外频谱信号，以及适于识别与数字化的带外频谱信号内的带外数据信道相对应的数据的电路 频带频谱信号。
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公开(公告)号：US20090235306A1
公开(公告)日：2009-09-17
申请号：US12383309
申请日：2009-03-23
IPC分类号： H04N7/025
CPC分类号： H04H20/59 , G08B27/008 , H04H60/13 , H04H60/51 , H04N5/445 , H04N5/50 , H04N5/63 , H04N7/165 , H04N21/4263 , H04N21/4383 , H04N21/4425 , H04N21/478 , H04N21/4882 , H04N21/6543 , H04N21/814 , H04N21/8146
摘要： An apparatus such as a television signal receiver (20) provides an emergency alert function. According to an exemplary embodiment, the television signal receiver (20) includes a first tuner (23) for tuning a first channel when the television signal receiver (20) is in an on mode. A second tuner (25) is provided for tuning a second channel when the television signal receiver (20) is in the on mode and an off/standby mode. The second channel provides emergency alert signals capable of activating the emergency alert function.
摘要翻译： 诸如电视信号接收器（20）的装置提供紧急警报功能。 根据示例性实施例，电视信号接收器（20）包括用于当电视信号接收器（20）处于接通模式时调谐第一通道的第一调谐器（23）。 提供第二调谐器（25），用于当电视信号接收器（20）处于开模式和关/待机模式时调谐第二通道。 第二通道提供能够启动紧急警报功能的紧急警报信号。
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8.发明授权Method, apparatus and data structure enabling multiple channel data stream transmission 有权允许多信道数据流传输的方法，装置和数据结构公开(公告)号：US07215679B2
公开(公告)日：2007-05-08
申请号：US09942886
申请日：2001-08-30
CPC分类号： H04B7/18582
摘要： A method, apparatus and data structure enabling multiple channel data stream transmission by inserting data to be transmitted into portions of a plurality of transport streams nominally including NULL packets. The inserted packets have associated with them stream identification and sequence code information enabling the reconstruction of the initial data stream using data packets transmitted via a plurality of data channels.
摘要翻译： 一种方法，装置和数据结构，其能够通过将要发送的数据插入名义上包括空分组的多个传输流的部分中来实现多信道数据流传输。 插入的分组与它们相关联的流识别和序列码信息，使得能够使用经由多个数据信道发送的数据分组重构初始数据流。
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公开(公告)号：US20110001877A1
公开(公告)日：2011-01-06
申请号：US12312662
申请日：2006-12-04
CPC分类号： H04N5/50 , H03H7/463 , H04N5/45 , H04N21/4263 , H04N21/4316 , H04N21/4347
摘要： The present invention includes an apparatus for distributing a received modulated RF signal to a plurality of tuners including a diplexer device. The diplexer device includes a plurality of filter circuits adapted to direct respective portions of the received modulated RF the signal to respective tuner devices. In an illustrated embodiment, the tuner devices supply tuned signals to a picture in picture display device. Also disclosed is a method of receiving a modulated ready of frequency signal and routing portions of the received signal to respective tuner devices using filter devices in a diplexer or multiplexer configuration.
摘要翻译： 本发明包括一种用于将接收的调制RF信号分配到包括双工器装置的多个调谐器的装置。 双工器装置包括多个滤波器电路，其适于将接收到的经调制的RF的各个部分的信号引导到相应的调谐器装置。 在所示实施例中，调谐器装置将调谐信号提供给画中画显示装置。 还公开了一种接收调制好的频率信号的方法，并且使用双工器或复用器配置中的滤波器装置将接收到的信号的部分路由到相应的调谐器装置。
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公开(公告)号：US20090141183A1
公开(公告)日：2009-06-04
申请号：US12226093
申请日：2006-04-12
CPC分类号： H03F1/26 , H03F1/42 , H03F3/191 , H03F3/211 , H03F3/60 , H03F3/602 , H03F2200/294 , H03F2200/372 , H03F2200/429 , H03F2200/541 , H03F2200/63 , H03F2203/21112
摘要： A method and apparatus is presented for actively signal splitting an RF signal. Specifically, the RF signal is frequency-separated to generate a first signal including a first set of frequencies and a second signal including a second set of frequencies. The first and second signals are independently amplified to generate first and second amplified signals, respectively. The first and second amplified signals are then combined to generate a recombined signal. The recombined signal is divided to generate first and second splitter output signals.
摘要翻译： 提出了用于主动地信号分离RF信号的方法和装置。 具体地，RF信号被频率分离以产生包括第一组频率的第一信号和包括第二组频率的第二信号。 第一和第二信号被独立地放大以分别产生第一和第二放大信号。 然后组合第一和第二放大信号以产生重组信号。 重新组合的信号被分割以产生第一和第二分离器输出信号。
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