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    Method and apparatus for increasing receiver immunity to interference
    1.
    发明专利
    Method and apparatus for increasing receiver immunity to interference 有权
    用于增加接收器免疫干扰的方法和装置

    公开(公告)号：JP2007318767A

    公开(公告)日：2007-12-06

    申请号：JP2007156813

    申请日：2007-06-13

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WHEATLEY III CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B1/16 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/18 ,  H04B1/26 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

    CPC classification number: H04W52/52 ,  H03F3/72 ,  H03F2203/7239 ,  H03G1/0088 ,  H03G3/3052 ,  H03G3/3068 ,  H04B1/109 ,  H04B1/70755 ,  H04B1/7097

    Abstract: PROBLEM TO BE SOLVED: To improve a radio receiver's immunity to interference. SOLUTION: If the power level of a received signal meets or exceeds a predetermined power threshold, the low noise amplifier is by-passed, thus increasing the intercept point of a receiver. Alternative embodiments include the use of an RF power detector to control the front-end gain as a function of interference power. Continuous gain control allows the interference suppression and sensitivity of the receiver to be adjusted at lower signal levels than the switchable gain block. The processing device of the receiver measures the gain change in the IF signal power. If the change is less than the predetermined amount, the CDMA signal and interference power are below the noise floor and, therefore, the gain is increased. If the IF signal power change is greater than the predetermined amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used until the receiver is operating at the best compromise between interference and noise figure. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提高无线电接收机的抗干扰性。 解决方案：如果接收信号的功率电平达到或超过预定功率阈值，则低噪声放大器被旁路，从而增加接收机的截取点。 替代实施例包括使用RF功率检测器来控制作为干扰功率的函数的前端增益。 连续增益控制允许在比可切换增益块更低的信号电平下调整接收机的干扰抑制和灵敏度。 接收机的处理装置测量IF信号功率的增益变化。 如果变化小于预定量，则CDMA信号和干扰功率低于本底噪声，因此增益增加。 如果IF信号功率变化大于预定量，则干扰是显而易见的并且减小增益以减少互调产物。 使用这个过程直到接收机以干扰和噪声系数之间的最佳折中操作。 版权所有（C）2008，JPO＆INPIT

    METHOD AND EQUIPMENT FOR IMPROVING INTERFERENCE IMMUNITY OF RECEIVER
    2.
    发明专利
    METHOD AND EQUIPMENT FOR IMPROVING INTERFERENCE IMMUNITY OF RECEIVER 审中-公开

    公开(公告)号：JP2002190748A

    公开(公告)日：2002-07-05

    申请号：JP2001229619

    申请日：2001-07-30

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY III CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

    Abstract: PROBLEM TO BE SOLVED: To increase radio resistance to radio frequency interference from another system while moving to the neighborhood of the antenna of a difference system concerning mobile radio. SOLUTION: When the power level of a received signal satisfies or exceeds a prescribed power threshold as the result of detecting the level, a low noise amplifier is by passed to improve the intercept point the component of a receiver. An alternative solving means controls a front end gain continuously as the function of interfering power by using an RF power detector to suppress interference and to adjust the sensitivity of the receiver by a signal level lower than a switchable gain block. Adjusting input gain by each prescribed quantity, the processor of the receiver measures the variation of the gain of an IF signal power. When the variation is smaller than a prescribed quantity, since a CDMA signal and the interfering power is lower than the noise lowest value, the gain is increased. When the variation of the IF signal is larger than the prescribed quantity, the gain is reduced to reduce a mutual modulation product. It is continued until the receiver operates at the best compromise of interference and a noise index.

    Method and apparatus for increasing receiver immunity to interference
    3.
    发明专利
    Method and apparatus for increasing receiver immunity to interference 审中-公开
    用于增加接收器免疫干扰的方法和装置

    公开(公告)号：JP2010068529A

    公开(公告)日：2010-03-25

    申请号：JP2009239424

    申请日：2009-10-16

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WHEATLEY III CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B1/18 ,  H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

    CPC classification number: H04W52/52 ,  H03F3/72 ,  H03F2203/7239 ,  H03G1/0088 ,  H03G3/3052 ,  H03G3/3068 ,  H04B1/109 ,  H04B1/70755 ,  H04B1/7097

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for increasing receiver immunity to interference.
    SOLUTION: The power level of a received signal is detected. If the power level meets or exceeds a predetermined power threshold, a low noise amplifier 703 is provided with a bypass route 730, thus increasing an intercept point of the receiver components. By using an RF power detector, the front-end gain as a function of jammer power is controlled. The sensitivity of the receiver is adjusted at a lower signal level than a switchable gain block by a predetermined amount. The receiver processing section measures the gain change in the IF signal power. If the change is less than the predetermined amount, the CDMA signal and jammer power are below the minimum noise and, therefore, the gain is increased. If the IF signal power change is greater than the predetermined amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used until the receiver operates at the best compromise between interference and noise figure.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于增加接收机对干扰的抗扰度的方法和装置。 解决方案：检测到接收信号的功率电平。 如果功率电平满足或超过预定功率阈值，则低噪声放大器703设置有旁路路线730，从而增加接收器组件的截取点。 通过使用RF功率检测器，控制前端增益作为干扰功率的函数。 接收机的灵敏度被调整到比可切换增益块低的信号电平预定量。 接收机处理部分测量IF信号功率的增益变化。 如果变化小于预定量，则CDMA信号和干扰功率低于最小噪声，因此增益增加。 如果IF信号功率变化大于预定量，则干扰是显而易见的并且减小增益以减少互调产物。 使用这个过程，直到接收器以干扰和噪声系数之间的最佳折中操作。 版权所有（C）2010，JPO＆INPIT

    Method and apparatus for increasing receiver immunity to interference
    5.
    发明专利
    Method and apparatus for increasing receiver immunity to interference 有权
    用于增加接收器免疫干扰的方法和装置

    公开(公告)号：JP2011211731A

    公开(公告)日：2011-10-20

    申请号：JP2011111824

    申请日：2011-05-18

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WHEATLEY III CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B1/18 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

    CPC classification number: H04W52/52 ,  H03F3/72 ,  H03F2203/7239 ,  H03G1/0088 ,  H03G3/3052 ,  H03G3/3068 ,  H04B1/109 ,  H04B1/70755 ,  H04B1/7097

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for improving the immunity to interference of a radio receiver.SOLUTION: A power level of a received signal is detected. If the power level meets or exceeds a prescribed power threshold, a low noise amplifier is by-passed, thus increasing the intercept point of the receiver components. Alternative embodiments include the use of an RF power detector to control the front-end gain. Continuous gain control allows the interference suppression and sensitivity of the receiver to be adjusted at lower signal levels than a switchable gain block. A receiver processing device measures a gain change in IF signal power. If the change is less than a prescribed amount, a CDMA signal and jammers are below the noise floor and, therefore, the gain is increased. If the IF signal power change is greater than the prescribed amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used till the receiver is operating at the best compromise between interference and noise figure.

    Abstract translation: 要解决的问题：提供一种提高无线电接收机的抗干扰能力的方法和装置。解决方案：检测接收信号的功率电平。 如果功率电平满足或超过规定功率阈值，则旁路低噪声放大器，从而增加接收器组件的截取点。 替代实施例包括使用RF功率检测器来控制前端增益。 连续增益控制允许在比可切换增益块更低的信号电平下调整接收机的干扰抑制和灵敏度。 接收机处理装置测量IF信号功率的增益变化。 如果变化小于规定量，则CDMA信号和干扰器低于本底噪声，因此增益增加。 如果IF信号功率变化大于规定量，干扰是明显的，并且减小增益以减少互调产物。 使用这个过程，直到接收机以干扰和噪声系数之间的最佳折中操作。

    Method and apparatus for increasing the interference immunity of receiver
    6.
    发明专利
    Method and apparatus for increasing the interference immunity of receiver 有权
    用于增加接收器干扰免疫力的方法和装置

    公开(公告)号：JP2009038809A

    公开(公告)日：2009-02-19

    申请号：JP2008227616

    申请日：2008-09-04

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WHEATLEY III CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B1/18 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

    CPC classification number: H04W52/52 ,  H03F3/72 ,  H03F2203/7239 ,  H03G1/0088 ,  H03G3/3052 ,  H03G3/3068 ,  H04B1/109 ,  H04B1/70755 ,  H04B1/7097

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for increasing the interference immunity of a receiver.
    SOLUTION: When a signal is received, its electric power level is detected. When the level is equal to or greater than a prescribed power threshold value, a bypass path provided for the low-noise amplifier 115 increases the intercept point of receiver components. An alternative embodiment uses an RF power detector 105 to control the front-end gain as a function of the interfering power. It is possible to suppress the interference and control the receiver sensitivity to a low signal level by continuously controlling the gain. The processing unit of the receiver measures the gain change of the IF signal power. If the gain change is smaller than the prescribed value, the processing unit increases the gain since the CDMA signal and interfering power are below the lowest noise value. When the IF signal power change is greater than a prescribed value, an interference apparently exists. The processing unit reduces the gain and makes the intermodulation product smaller. This continues until the receiver operates at the best compromise of interference and a noise index.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于增加接收机的抗干扰性的方法和装置。

    解决方案：当接收到信号时，检测到其功率电平。 当电平等于或大于规定的功率阈值时，为低噪声放大器115提供的旁路路径增加接收器部件的截取点。 替代实施例使用RF功率检测器105来控制作为干扰功率的函数的前端增益。 可以通过连续控制增益来抑制干扰并将接收机灵敏度控制在低信号电平。 接收机的处理单元测量IF信号功率的增益变化。 如果增益变化小于规定值，则由于CDMA信号和干扰功率低于最低噪声值，所以处理单元增加增益。 当IF信号功率变化大于规定值时，显然存在干扰。 处理单元降低增益，并使互调产物更小。 这将持续到接收机以干扰和噪声指数的最佳折中操作。 版权所有（C）2009，JPO＆INPIT

    Method and apparatus for increasing receiver immunity to interference
    7.
    发明专利
    Method and apparatus for increasing receiver immunity to interference 审中-公开
    用于增加接收器免疫干扰的方法和装置

    公开(公告)号：JP2007274730A

    公开(公告)日：2007-10-18

    申请号：JP2007156814

    申请日：2007-06-13

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WHEATLEY III CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B1/10 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

    CPC classification number: H04W52/52 ,  H03F3/72 ,  H03F2203/7239 ,  H03G1/0088 ,  H03G3/3052 ,  H03G3/3068 ,  H04B1/109 ,  H04B1/70755 ,  H04B1/7097

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for increasing receiver immunity to interference.
    SOLUTION: The power level of a received signal is detected and if the power level meets or exceeds a predetermined power threshold, by providing a by-pass path 730 in a low noise amplifier 703, the intercept point of the receiver components is increased. Alternative embodiments include the use of an RF power detector to control the front-end gain as a function of jammer power. In lieu of a switchable RF gain block, several methods of continuous gain control are proposed. Continuous gain control allows the interference suppression and sensitivity of the receiver to be adjusted at lower signal levels than the switchable gain block. The gain change in the IF signal power is measured and if the change is less than the predetermined amount, the CDMA signal and jammers are below the noise floor and, therefore, the gain is increased. If the IF signal power change is greater than the predetermined amount, the gain is reduced to reduce the intermodulation products.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于增加接收机对干扰的抗扰度的方法和装置。 解决方案：检测接收信号的功率电平，并且如果功率电平满足或超过预定功率阈值，则通过在低噪声放大器703中提供旁路路径730，接收器组件的截点为 增加。 替代实施例包括使用RF功率检测器来控制作为干扰功率的函数的前端增益。 代替可切换的RF增益块，提出了几种连续增益控制方法。 连续增益控制允许在比可切换增益块更低的信号电平下调整接收机的干扰抑制和灵敏度。 测量IF信号功率的增益变化，如果变化小于预定量，则CDMA信号和干扰器低于本底噪声，因此增益增加。 如果IF信号功率变化大于预定量，则降低增益以减少互调产物。 版权所有（C）2008，JPO＆INPIT

    8.
    发明专利
    未知

    公开(公告)号：AT403284T

    公开(公告)日：2008-08-15

    申请号：AT04019498

    申请日：1995-12-11

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E III ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B7/005 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/26 ,  H04B15/00

    Abstract: An apparatus to increase a radio receiver's immunity to radio frequency interference, the radio receiver receiving a signal, the apparatus comprising: a switch (1105) coupled to the received signal, the switch (1105) having an open position and a closed position; a resistance (1101), a first end of the resistance (1101) being coupled to the closed position of the switch (1105) and a second end of the resistance (1101) being coupled to a ground potential; an amplifier (1101) having an input coupled to the open position of the switch (1105), for generating an amplified received signal at an output; a controller coupled to the switch (1105), for switching the switch (1105) to the closed position in response to the received signal exceeding a predetermined power level, said received signal conducting through said switch (1105) and said resistance (1101) to ground potential when said switch (1105) is in said closed position; and said resistance (1101) creating an impedance mismatch at the input to said amplifier (1110) when said switch (1105) is in closed position, thereby reducing the gain contributed by said amplifier (1110).

    9.
    发明专利
    未知

    公开(公告)号：FI20050748A

    公开(公告)日：2005-07-13

    申请号：FI20050748

    申请日：2005-07-13

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E III ,  KORNFELD RICHARD K ,  PETERZELL PAUL E ,  WEILAND ANA L

    IPC: H04B1/06 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00 ,  H04B

    Abstract: An apparatus to increase a radio receiver's immunity to radio frequency interference, the radio receiver receiving a signal, the apparatus comprising: a switch (1105) coupled to the received signal, the switch (1105) having an open position and a closed position; a resistance (1101), a first end of the resistance (1101) being coupled to the closed position of the switch (1105) and a second end of the resistance (1101) being coupled to a ground potential; an amplifier (1101) having an input coupled to the open position of the switch (1105), for generating an amplified received signal at an output; a controller coupled to the switch (1105), for switching the switch (1105) to the closed position in response to the received signal exceeding a predetermined power level, said received signal conducting through said switch (1105) and said resistance (1101) to ground potential when said switch (1105) is in said closed position; and said resistance (1101) creating an impedance mismatch at the input to said amplifier (1110) when said switch (1105) is in closed position, thereby reducing the gain contributed by said amplifier (1110).

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