Systems and methods providing wideband tuners controlling spurious signal placement in the capture bandwidth
    1.
    发明授权
    Systems and methods providing wideband tuners controlling spurious signal placement in the capture bandwidth 有权
    提供宽带调谐器的系统和方法控制捕获带宽中的杂散信号放置

    公开(公告)号:US08346172B2

    公开(公告)日:2013-01-01

    申请号:US12473092

    申请日:2009-05-27

    IPC分类号: H04B1/00 H04B17/00

    CPC分类号: H04B1/1036 H04B1/28

    摘要: Systems and methods which place a spurious signal within a capture bandwidth of a tuner. Placement of the spur is preferably controlled to dispose the spur within a spur placement window, such as may be defined between traffic channels of an input signal. A tuner system operating in accordance with embodiments may be controlled to select a particular input frequency band comprising a plurality of traffic channels for frequency conversion and to determine local oscillator frequencies which result in most relevant spurs being placed outside of the tuner capture bandwidth. The local oscillator frequencies may be shifted to place a relevant spur remaining within the capture bandwidth of the tuner between traffic channels of the plurality of traffic channels. Embodiments operate to determine frequency offset between a transmitter and a tuner to determine the midpoint between channels.

    摘要翻译: 在调谐器的捕获带宽内放置杂散信号的系统和方法。 优选地,控制支线的放置以将杂散处置在支线放置窗口内,诸如可以在输入信号的交通信道之间定义。 可以控制根据实施例操作的调谐器系统以选择包括用于频率转换的多个业务信道的特定输入频带,并且确定导致大部分相关杂散放置在调谐器捕获带宽之外的本地振荡器频率。 可以移动本地振荡器频率以将相关杂波置于保持在调谐器的捕获带宽内的多个业务信道的业务信道之间。 实施例用于确定发射器和调谐器之间的频率偏移,以确定通道之间的中点。

    SYSTEMS AND METHODS PROVIDING WIDEBAND TUNERS CONTROLLING SPURIOUS SIGNAL PLACEMENT IN THE CAPTURE BANDWIDTH
    2.
    发明申请
    SYSTEMS AND METHODS PROVIDING WIDEBAND TUNERS CONTROLLING SPURIOUS SIGNAL PLACEMENT IN THE CAPTURE BANDWIDTH 有权
    提供宽带调制器的系统和方法控制带宽信号放大信号

    公开(公告)号:US20100304677A1

    公开(公告)日:2010-12-02

    申请号:US12473092

    申请日:2009-05-27

    IPC分类号: H04B7/12 H04B17/00

    CPC分类号: H04B1/1036 H04B1/28

    摘要: Systems and methods which place a spurious signal within a capture bandwidth of a tuner. Placement of the spur is preferably controlled to dispose the spur within a spur placement window, such as may be defined between traffic channels of an input signal. A tuner system operating in accordance with embodiments may be controlled to select a particular input frequency band comprising a plurality of traffic channels for frequency conversion and to determine local oscillator frequencies which result in most relevant spurs being placed outside of the tuner capture bandwidth. The local oscillator frequencies may be shifted to place a relevant spur remaining within the capture bandwidth of the tuner between traffic channels of the plurality of traffic channels. Embodiments operate to determine frequency offset between a transmitter and a tuner to determine the midpoint between channels.

    摘要翻译: 在调谐器的捕获带宽内放置杂散信号的系统和方法。 优选地,控制支线的放置以将杂散处置在支线放置窗口内,诸如可以在输入信号的交通信道之间定义。 可以控制根据实施例操作的调谐器系统以选择包括用于频率转换的多个业务信道的特定输入频带,并且确定导致大部分相关杂散放置在调谐器捕获带宽之外的本地振荡器频率。 可以移动本地振荡器频率以将相关杂波置于保持在调谐器的捕获带宽内的多个业务信道的业务信道之间。 实施例用于确定发射器和调谐器之间的频率偏移,以确定通道之间的中点。

    Broadband tuner for very wide signal conversion
    5.
    发明授权
    Broadband tuner for very wide signal conversion 有权
    宽带调谐器用于非常宽的信号转换

    公开(公告)号:US08422978B2

    公开(公告)日:2013-04-16

    申请号:US13339560

    申请日:2011-12-29

    IPC分类号: H04B1/26

    CPC分类号: H03D7/161 H04B1/0035 H04B1/28

    摘要: An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonics and intermodulations typically associated with the frequency conversion process.

    摘要翻译: 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号,然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

    Broadband Tuner for Very Wide Signal Conversion
    6.
    发明申请
    Broadband Tuner for Very Wide Signal Conversion 有权
    用于宽信号转换的宽带调谐器

    公开(公告)号:US20120099685A1

    公开(公告)日:2012-04-26

    申请号:US13339549

    申请日:2011-12-29

    IPC分类号: H04B1/10

    CPC分类号: H03D7/161 H04B1/0035 H04B1/28

    摘要: An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonics and intermodulations typically associated with the frequency conversion process.

    摘要翻译: 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号,然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

    Broadband tuner for very wide signal conversion
    7.
    发明授权
    Broadband tuner for very wide signal conversion 有权
    宽带调谐器用于非常宽的信号转换

    公开(公告)号:US08107918B2

    公开(公告)日:2012-01-31

    申请号:US12101649

    申请日:2008-04-11

    IPC分类号: H04B1/10

    CPC分类号: H03D7/161 H04B1/0035 H04B1/28

    摘要: An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonies and intermodulations typically associated with the frequency conversion process.

    摘要翻译: 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号,然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

    BROADBAND TUNER FOR VERY WIDE SIGNAL CONVERSION
    8.
    发明申请
    BROADBAND TUNER FOR VERY WIDE SIGNAL CONVERSION 有权
    宽带调谐器,用于非常广泛的信号转换

    公开(公告)号:US20090258629A1

    公开(公告)日:2009-10-15

    申请号:US12101649

    申请日:2008-04-11

    IPC分类号: H04B1/26

    CPC分类号: H03D7/161 H04B1/0035 H04B1/28

    摘要: An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonies and intermodulations typically associated with the frequency conversion process.

    摘要翻译: 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号,然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。