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公开(公告)号：AU2003247621A1
公开(公告)日：2004-01-06
申请号：AU2003247621
申请日：2003-06-25
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R
Abstract: An apparatus and method for operating a feed-forward amplifier in which, after the signal-cancellation and intermodulation-cancellation loops have initially been nulled, the feed-forward amplifier is operated so that both loops are controlled so as to minimize intermodulation at the output of the feed-forward amplifier.
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12.发明专利
公开(公告)号：MXPA06003194A
公开(公告)日：2006-06-23
申请号：MXPA06003194
申请日：2004-09-21
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R
Abstract: Un aparato y un metodo para proporcionar un retardo RF electricamente ajustable en donde un divisor divide una senal de entrada en dos trayectos de senal, un trayecto de senal proporcionar un retardo fijo a un numero entero de longitudes de onda de una frecuencia central deseada y ambos trayectos de senal proporcionan la atenuacion electricamente ajustable. Un combinador combina las senales que pasan a traves de los trayectos de senal, de modo que la suma de la atenuacion electricamente ajustable provista por los trayectos de senal suman la unidad, por lo cual la senal de entrada se retrasa por un tiempo ajustable, dependiendo de las atenuaciones provistas por los trayectos de senal.
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公开(公告)号：CA2495113A1
公开(公告)日：2003-02-27
申请号：CA2495113
申请日：2002-08-12
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R
Abstract: A feedforward type amplifier having a signal cancellation loop includes a cancellation node, a gain controller (C1) and a phase controller (C2). Each controller provides a discrete tap steering signal that it modulates with a discrete tracer signal that takes on a preselected sequence of values. The sequence is chosen so that the tracer signal is mutually orthogonal to each other tracer signal over a preselected period. A gain and phase adjuster (GPA1) connected to the outputs of the controllers provides a controlled gai n change and phase shift in the signal cancellation loop. A detector (D1), the input of which is connected to the cancellation node and the output of which is connected to the controllers outputs a measure of the envelope of the signal at the cancellation node. After the preselected period new values for the tap steering signals are obtained by multiplying the detector output by the respective tracer signal, each over the respective preselected period, summing each resulting series of values, and changing the tap steering signa ls to be modulated and presented to the gain and phase adjuster in accordance with the values of the respective sums.
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公开(公告)号：CA2471305A1
公开(公告)日：2002-08-15
申请号：CA2471305
申请日：2002-02-04
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R , HEINZMANN FRED J
IPC: C08L63/00 , C08L79/04 , H01L23/29 , H01Q1/22 , H01Q1/24 , H01Q3/24 , H01Q3/44 , H01Q21/28 , H04L12/56 , H04W84/14 , H04Q7/20 , H04Q7/32 , H04Q7/38
Abstract: A wireless local loop system is provided that includes a wireless base stati on (36) that communicates with a subscriber station (41, 48) via a wireless lin k. The wireless link can carry a voice service, such as telephone calls, or a data service, such as internet browsing. The subscriber station includes a steerable antenna. A presently preferred steerable antenna for use with the subscriber station includes a driven element mounted on a base plane that is surrounded by a plurality of parasitic elements also mounted to the base plane. The parasitic elements can be optionally grounded or floated in order to reflect the wireless link towards the driven element. The antenna can be oriented in a desired direction during the transception of a voice or data service. A method of transceiving between a wireless local loop subscriber station and a wireless local loop base station is also provided.
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公开(公告)号：WO0243239A3
公开(公告)日：2004-01-29
申请号：PCT/US0143030
申请日：2001-11-09
Applicant: SOMA NETWORKS INC , BLODGETT JAMES R
Inventor： BLODGETT JAMES R
IPC: H03F1/32
CPC classification number: H03F1/3235
Abstract: The present invention provides a novel feed forward amplifier ("FFA") and a pilot tone generator-receiver therefor. In an embodiment of the invention, the feed forward amplifier only requires a single oscillator to operate both the pilot tone generator and pilot tone receiver used in conjunction with the amplifier circuitry of the FFA. In another embodiment of the invention, a method is provided of generating and detecting a pilot tone from a single oscillating signal.
Abstract translation: 本发明提供一种新型的前馈放大器（“FFA”）及其导频音发生器 - 接收器。 在本发明的实施例中，前馈放大器仅需要单个振荡器来操作与FFA的放大器电路结合使用的导频音产生器和导频音接收机。 在本发明的另一实施例中，提供一种从单个振荡信号产生和检测导频音的方法。
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Patent Agency Ranking
公开(公告)号：WO03017553A3
公开(公告)日：2003-04-03
申请号：PCT/US0225557
申请日：2002-08-12
Applicant: SOMA NETWORKS INC , BLODGETT JAMES R
Inventor： BLODGETT JAMES R
CPC classification number: H03F1/3235 , H03F2201/3212
Abstract: A feedforward type amplifier having a signal cancellation loop includes a cancellation node, a gain controller C1 and a phase controller C2. Each controller provides a discrete tap steering signal that it modulates with a discrete tracer signal that takes on a preselected sequence of values. The sequence is chosen so that the tracer signal is mutually orthogonal to each other tracer signal over a preselected period. A gain and phase adjuster GPA1 connected to the outputs of the controllers provides a controlled gain change and phase shift in the signal cancellation loop. A detector D1, the input of which is connected to the cancellation node and the output of which is connected to the controllers outputs a measure of the envelope of the signal at the cancellation node. After the preselected period new values for the tap steering signals are obtained by multiplying the detector output by the respective tracer signal, each over the respective preselected period, summing each resulting series of values, and changing the tap steering signals to be modulated and presented to the gain and phase adjuster in accordance with the values of the respective sums.
Abstract translation: 具有信号消除回路的前馈型放大器包括消除节点，增益控制器C1和相位控制器C2。 每个控制器提供一个离散的抽头转向信号，它用离散的示踪信号进行调制，该信号采用预先选定的一系列值。 该序列被选择为使得示踪信号在预选时间段内与彼此的示踪信号相互正交。 连接到控制器输出的增益和相位调节器GPA1在信号消除环路中提供受控增益改变和相移。 输入连接到消除节点并且其输出连接到控制器的检测器D1输出消除节点处的信号包络的度量。 在预选时间段之后，通过将探测器输出乘以相应示踪信号，每个在相应的预选时间段上，对每个所得到的一系列值进行求和，并且改变要调制的并且呈现给 增益和相位调整器根据相应的和值。
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公开(公告)号：WO2004001956A3
公开(公告)日：2005-04-28
申请号：PCT/US0319849
申请日：2003-06-25
Applicant: SOMA NETWORKS INC , BLODGETT JAMES R
Inventor： BLODGETT JAMES R
CPC classification number: H03F1/3229
Abstract: An apparatus and method for operating a feed-forward amplifier in which, after the signal-cancellation and intermodulation-cancellation loops have initially been nulled, the feed-forward amplifier is operated so that both loops are controlled so as to minimize intermodulation at the output of the feed-forward amplifier.
Abstract translation: 一种用于操作前馈放大器的装置和方法，其中在信号消除和互调消除环路最初被置零之后，前馈放大器被操作，使得两个环路被控制以使输出端的互调最小化 的前馈放大器。
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公开(公告)号：EP1362489A4
公开(公告)日：2004-06-23
申请号：EP02724897
申请日：2002-02-04
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R , HEINZMANN FRED J
IPC: C08L63/00 , C08L79/04 , H01L23/29 , H01Q1/22 , H01Q1/24 , H01Q3/24 , H01Q3/44 , H01Q21/28 , H04L12/56 , H04W84/14 , H04B7/26 , H04L12/28
CPC classification number: H04W84/14 , C08L63/00 , C08L79/04 , H01L23/293 , H01L2924/0002 , H01L2924/3011 , H01Q1/241 , H01Q3/24 , H01Q3/446 , H01Q21/28 , C08L2666/20 , H01L2924/00
Abstract: A wireless local loop system is provided that includes a wireless base station (36) that communicates with a subscriber station (41, 48) via a wireless link. The wireless link can carry a voice service, such as telephone calls, or a data service, such as internet browsing. The subscriber station includes a steerable antenna. A presently preferred steerable antenna for use with the subscriber station includes a driven element mounted on a base plane that is surrounded by a plurality of parasitic elements also mounted to the base plane. The parasitic elements can be optionally grounded or floated in order to reflect the wireless link towards the driven element. The antenna can be oriented in a desired direction during the transception of a voice or data service. A method of transceiving between a wireless local loop subscriber station and a wireless local loop base station is also provided.
Abstract translation: 提供了一种无线本地环路系统，其包括经由无线链路与用户站进行通信的无线基站。 无线链路可以携带诸如电话呼叫或诸如因特网浏览的数据服务之类的语音服务。 订户站包括可转向天线。 目前优选的用于用户站的可操纵天线包括安装在基本平面上的被驱动元件，该从动元件被也安装到基座平面上的多个寄生元件围绕。 寄生元件可以可选地接地或浮动，以便将无线链路反向朝向被驱动元件。 在语音或数据业务的传输过程中，天线可以在所需方向上定向。 还提供了一种在无线本地环路用户站和无线本地环路基站之间收发的方法。
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公开(公告)号：EP1552605A4
公开(公告)日：2007-05-30
申请号：EP03761291
申请日：2003-06-25
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R
CPC classification number: H03F1/3229
Abstract: An apparatus and method for operating a feed-forward amplifier in which, after the signal-cancellation and intermodulation-cancellation loops have initially been nulled, the feed-forward amplifier is operated so that both loops are controlled so as to minimize intermodulation at the output of the feed-forward amplifier.
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公开(公告)号：EP1476942A4
公开(公告)日：2005-01-05
申请号：EP02757076
申请日：2002-08-12
Applicant: SOMA NETWORKS INC
Inventor： BLODGETT JAMES R
CPC classification number: H03F1/3235 , H03F2201/3212
Abstract: A feedforward type amplifier having a signal cancellation loop includes a cancellation node, a gain controller (C1) and a phase controller (C2). Each controller provides a discrete tap steering signal that it modulates with a discrete tracer signal that takes on a preselected sequence of values. The sequence is chosen so that the tracer signal is mutually orthogonal to each other tracer signal over a preselected period. A gain and phase adjuster (GPA1) connected to the outputs of the controllers provides a controlled gain change and phase shift in the signal cancellation loop. A detector (D1), the input of which is connected to the cancellation node and the output of which is connected to the controllers outputs a measure of the envelope of the signal at the cancellation node. After the preselected period new values for the tap steering signals are obtained by multiplying the detector output by the respective tracer signal, each over the respective preselected period, summing each resulting series of values, and changing the tap steering signals to be modulated and presented to the gain and phase adjuster in accordance with the values of the respective sums.
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