公开(公告)号：US20100173599A1

公开(公告)日：2010-07-08

申请号：US12651178

申请日：2009-12-31

Applicant: Jeffrey Paul Solum

Inventor： Jeffrey Paul Solum

IPC: H04B1/06

CPC classification number: H04B1/1027 ,  H03G3/3052 ,  H03G2201/202 ,  H03G2201/206 ,  H04B1/109 ,  H04L27/3809

Abstract: One embodiment of the present subject matter includes a method of receiving an input signal. The method, in various embodiments, includes detecting a peak of the input signal and detecting an envelope of the input signal. In various embodiments, the peak and envelope are used to identify out-of-band blocking signals and to adjust gain control. The method also includes comparing the peak to a first threshold Tp and comparing the envelope to a second threshold Te. In the method, if the peak is above the first threshold and the envelope is below the second threshold, then ignoring the input signal. If the envelope is above the second threshold, the method includes applying automatic gain control to decode information encoded in the input signal.

Abstract translation: 本主题的一个实施例包括接收输入信号的方法。 在各种实施例中，该方法包括检测输入信号的峰值并检测输入信号的包络。 在各种实施例中，峰值和包络用于识别带外阻塞信号并调整增益控制。 该方法还包括将峰值与第一阈值Tp进行比较并将包络与第二阈值Te进行比较。 在该方法中，如果峰值高于第一阈值并且包络低于第二阈值，则忽略输入信号。 如果信封高于第二阈值，则该方法包括应用自动增益控制来对输入信号中编码的信息进行解码。

公开(公告)号：US07429891B2

公开(公告)日：2008-09-30

申请号：US10977868

申请日：2004-10-29

Applicant: Hooman Darabi ,  Henrik T. Jensen ,  Brima Ibrahim

Inventor： Hooman Darabi ,  Henrik T. Jensen ,  Brima Ibrahim

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: Methods and systems for processing a plurality of signals are disclosed herein. Aspects of the method may comprise amplifying an input signal. The amplified input signal may be bandpass filtered. Amplification of the input signal may be adjusted based on only narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplified input signal may be downconverted and a blocker signal may be bandpass filtered from the amplified input signal. Signal strength of a desired signal from the amplified input signal may be measured. The amplification of the input signal may be adjusted utilizing a triple well (TW) NMOS transistor. A control signal may be generated based on the narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplification of the input signal may be adjusted based on at least one of the generated control signals.

Abstract translation: 本文公开了用于处理多个信号的方法和系统。 该方法的方面可以包括放大输入信号。 放大的输入信号可以被带通滤波。 可以仅基于带通滤波放大输入信号的窄带接收信号强度指示来调整输入信号的放大。 放大的输入信号可以被下变频，并且阻塞信号可以从放大的输入信号进行带通滤波。 可以测量来自放大的输入信号的期望信号的信号强度。 可以使用三阱（TW）NMOS晶体管来调节输入信号的放大。 可以基于带通滤波放大输入信号的窄带接收信号强度指示来产生控制信号。 可以基于所生成的控制信号中的至少一个来调整输入信号的放大。

公开(公告)号：US20080204135A1

公开(公告)日：2008-08-28

申请号：US12115263

申请日：2008-05-05

Applicant: Hooman Darabi ,  Henrik T. Jensen ,  Brima Ibrahim

Inventor： Hooman Darabi ,  Henrik T. Jensen ,  Brima Ibrahim

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: A method for processing a plurality of signals may include amplifying an input signal and generating a wideband signal from the amplified input signal. The method may further include bandpass filtering the generated wideband signal to generate a narrowband signal, and adjusting amplification of the input signal based on a narrowband received signal strength indication of the generated narrowband signal, and/or a wideband received signal strength indication of the generated wideband signal. The amplified input signal may be downconverted to generate the wideband signal. The amplified input signal may be downconverted to an intermediate frequency (IF) and/or to a baseband signal to generate the wideband signal. At least one blocker signal may be bandpass filtered from the amplified input signal.

Abstract translation: 用于处理多个信号的方法可以包括放大输入信号并从放大的输入信号产生宽带信号。 该方法还可以包括对生成的宽带信号进行带通滤波以产生窄带信号，以及基于所生成的窄带信号的窄带接收信号强度指示和/或所生成的宽带信号强度指示来调整输入信号的放大 宽带信号。 放大的输入信号可以被下变频以产生宽带信号。 放大的输入信号可以下变频到中频（IF）和/或基带信号以产生宽带信号。 至少一个阻塞信号可以从放大的输入信号进行带通滤波。

公开(公告)号：US20070164820A9

公开(公告)日：2007-07-19

申请号：US10977868

申请日：2004-10-29

Applicant: Hooman Darabi ,  Henrik Jensen ,  Brima Ibrahim

Inventor： Hooman Darabi ,  Henrik Jensen ,  Brima Ibrahim

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: Methods and systems for processing a plurality of signals are disclosed herein. Aspects of the method may comprise amplifying an input signal. The amplified input signal may be bandpass filtered. Amplification of the input signal may be adjusted based on only narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplified input signal may be downconverted and a blocker signal may be bandpass filtered from the amplified input signal. Signal strength of a desired signal from the amplified input signal may be measured. The amplification of the input signal may be adjusted utilizing a triple well (TW) NMOS transistor. A control signal may be generated based on the narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplification of the input signal may be adjusted based on at least one of the generated control signals.

Abstract translation: 本文中公开了用于处理多个信号的方法和系统。 该方法的方面可以包括放大输入信号。 放大的输入信号可以被带通滤波。 可以仅基于带通滤波放大输入信号的窄带接收信号强度指示来调整输入信号的放大。 放大的输入信号可以被下变频，并且阻塞信号可以从放大的输入信号进行带通滤波。 可以测量来自放大的输入信号的期望信号的信号强度。 可以使用三阱（TW）NMOS晶体管来调节输入信号的放大。 可以基于带通滤波放大输入信号的窄带接收信号强度指示来产生控制信号。 可以基于所生成的控制信号中的至少一个来调整输入信号的放大。

公开(公告)号：US20070110193A1

公开(公告)日：2007-05-17

申请号：US11539524

申请日：2006-10-06

Applicant: Jeffrey Solum

Inventor： Jeffrey Solum

IPC: H04L27/08

CPC classification number: H04B1/1027 ,  H03G3/3052 ,  H03G2201/202 ,  H03G2201/206 ,  H04B1/109 ,  H04L27/3809

Abstract: One embodiment of the present subject matter includes a method of receiving an input signal. The method, in various embodiments, includes detecting a peak of the input signal and detecting an envelope of the input signal. In various embodiments, the peak and envelope are used to identify out-of-band blocking signals and to adjust gain control. The method also includes comparing the peak to a first threshold Tp and comparing the envelope to a second threshold Te. In the method, if the peak is above the first threshold and the envelope is below the second threshold, then ignoring the input signal. If the envelope is above the second threshold, the method includes applying automatic gain control to decode information encoded in the input signal.

Abstract translation: 本主题的一个实施例包括接收输入信号的方法。 在各种实施例中，该方法包括检测输入信号的峰值并检测输入信号的包络。 在各种实施例中，峰值和包络用于识别带外阻塞信号并调整增益控制。 该方法还包括将峰值与第一阈值Tp进行比较并将包络与第二阈值Te进行比较。 在该方法中，如果峰值高于第一阈值并且包络低于第二阈值，则忽略输入信号。 如果信封高于第二阈值，则该方法包括应用自动增益控制来对输入信号中编码的信息进行解码。

公开(公告)号：US20060091948A1

公开(公告)日：2006-05-04

申请号：US10977868

申请日：2004-10-29

Applicant: Hooman Darabi

Inventor： Hooman Darabi

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: Methods and systems for processing a plurality of signals are disclosed herein. Aspects of the method may comprise amplifying an input signal. The amplified input signal may be bandpass filtered. Amplification of the input signal may be adjusted based on only narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplified input signal may be downconverted and a blocker signal may be bandpass filtered from the amplified input signal. Signal strength of a desired signal from the amplified input signal may be measured. The amplification of the input signal may be adjusted utilizing a triple well (TW) NMOS transistor. A control signal may be generated based on the narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplification of the input signal may be adjusted based on at least one of the generated control signals.

Abstract translation: 本文公开了用于处理多个信号的方法和系统。 该方法的方面可以包括放大输入信号。 放大的输入信号可以被带通滤波。 可以仅基于带通滤波放大输入信号的窄带接收信号强度指示来调整输入信号的放大。 放大的输入信号可以被下变频，并且阻塞信号可以从放大的输入信号进行带通滤波。 可以测量来自放大的输入信号的期望信号的信号强度。 可以使用三阱（TW）NMOS晶体管来调节输入信号的放大。 可以基于带通滤波放大输入信号的窄带接收信号强度指示来产生控制信号。 可以基于所生成的控制信号中的至少一个来调整输入信号的放大。

公开(公告)号：US20060017602A1

公开(公告)日：2006-01-26

申请号：US11186482

申请日：2005-07-21

Applicant: Giuseppe Puma ,  Duyen Pham-Stabner ,  Dietolf Seippel

Inventor： Giuseppe Puma ,  Duyen Pham-Stabner ,  Dietolf Seippel

IPC: H03M1/34

CPC classification number: H03M1/187 ,  H03G1/0088 ,  H03G3/3052 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: The mobile radio receiver comprises a variable amplifier (3), a first means (9, 10) for comparison of a signal, which is characteristic of the amplitude of a received signal, with at least one analogue comparison value (PDTHR), a second means (13, 14, 17) for comparison of a signal, which is characteristic of the amplitude of a received signal, with at least one digital comparison value (RSSITHR), and a third means (17, 11) for setting the gain, which is driven by the first means (9, 10) and by the second means (13, 14, 17).

Abstract translation: 移动无线电接收机包括可变放大器（3），用于将接收信号幅度特性的信号与至少一个模拟比较值（PDTHR）进行比较的第一装置（9,10），第二装置 用于将接收信号的振幅特性的信号与至少一个数字比较值（RSSITHR）和用于设置增益的第三装置（17,11）进行比较的装置（13,14,17） 其由第一装置（9,10）和第二装置（13,14,17）驱动。

公开(公告)号：EP1886313B1

公开(公告)日：2011-03-30

申请号：EP06771815.5

申请日：2006-06-01

Applicant: ZORAN CORPORATION

Inventor： HADDAD, Bassel

IPC: G11B20/10 ,  H03G3/20

CPC classification number: H03G3/001 ,  H03G3/3052 ,  H03G2201/202

Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system 0 also detects and corrects for DC offsets in the signal whose gain is controlled.

公开(公告)号：EP1583232B1

公开(公告)日：2010-06-02

申请号：EP05090077.8

申请日：2005-03-29

Applicant: NEC CORPORATION

Inventor： Ishihara, Takeshi, c/o NEC Corporation

IPC: H03G3/30 ,  H04B7/005

CPC classification number: H04W52/22 ,  H03G3/3068 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/305 ,  H03G2201/307 ,  H03G2201/702 ,  H03M1/122 ,  H03M1/18 ,  H03M1/183

公开(公告)号：EP1650890A4

公开(公告)日：2006-08-23

申请号：EP03817647

申请日：2003-07-25

Applicant: FUJITSU LTD

Inventor： SATO TADAHIRO ,  ADACHI AKIFUMI

IPC: H04B17/40 ,  H04J3/00 ,  H03G3/00 ,  H03G3/20 ,  H03G3/30 ,  H04B1/16 ,  H04B1/707 ,  H04B7/005 ,  H04J11/00 ,  H04J13/00

CPC classification number: H03G3/3052 ,  H03G3/005 ,  H03G3/3078 ,  H03G3/3089 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/305 ,  H04B1/707 ,  H04B2201/70701 ,  H04B2201/70706

Abstract: A received frame is branched into a gain control system (20A) for common pilot signals and a gain control system (20B) for individual data signals. The gain control system (20A) controls the gain of the common pilot signals, and the gain control system (20B) controls the gain of the data signals. A signal processor (30) establishes synchronization of frames, outputs a gain control signal (g1) so that the gain of the common pilot signal is constant, to a gain control circuit (21a) for the common pilot signals, and outputs a gain control signal (g2) so that the gain of the data signal is constant, to a gain control circuit (21b) for the data signals. The gain is controlled to be constant, thereby preventing saturation of ADC (26a, 26b, 27a, 27b) and S/N deterioration.

Abstract translation: 接收到的帧被分支到公共导频信号增益控制系统（20A）和单独的数据信号增益控制系统（20B）。 当增益控制系统（20B）增益控制数据信号的增益时，增益控制系统（20A）增益控制公共导频信号的增益。 信号处理器（30）执行与帧的同步，向公共导频信号增益控制电路（21a）输出用于使公共导频信号的增益恒定的增益控制信号（g1），并输出增益控制信号（g2） ），用于使数据信号的增益恒定到数据信号增益控制电路（21b）。 由于增益被控制为恒定，所以可以防止ADC（26a，26b，27a，27b）的饱和和S / N劣化。