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1. 发明申请

US20040259505A1 Switch circuit especially suitable for use in wireless LAN applications 审中-公开
标题翻译：开关电路特别适用于无线局域网应用
公开(公告)号：US20040259505A1
公开(公告)日：2004-12-23
申请号：US10465337
申请日：2003-06-19
发明人： Karthik Vasanth
IPC分类号： H04B001/44 , H04B001/38
CPC分类号： H04B1/48
摘要： A switch circuit selectively connects either a transmitter or a receiver to an antenna. The switch circuit has a transmitting pathway connecting the transmitter to the antenna 300 and containing only non-semiconductor elements (such as a first quarter-wave transmission line 313), and a receiving pathway connecting the antenna to the receiver and containing only non-semiconductor elements (such as a second quarter-wave transmission line 303). The switch circuit also has a switching arrangement (314A/B/C/D, 304A/B/C/D) configured to isolate the transmitter from the antenna while enabling the receiving pathway from the antenna to the receiver, and to isolate the receiver from the antenna while enabling the transmitting pathway from the transmitter to the antenna. Preferably, the transmitting pathway and receiving pathway include only elements having a very low insertion loss. A wireless local area network (WLAN) includes the transmitter, receiver, antenna and switch circuit.
摘要翻译：开关电路选择性地将发射器或接收器连接到天线。开关电路具有将发送器连接到天线300并且仅包含非半导体元件（例如第一四分之一波长传输线313）的发送路径以及将天线连接到接收器并仅包含非半导体的接收路径元件（例如第二四分之一波传输线303）。开关电路还具有被配置为将发射机与天线隔离开的开关装置（314A / B / C / D，304A / B / C / D），同时实现从天线到接收机的接收通路，并且将接收器同时启用从发射机到天线的传输路径。优选地，发射路径和接收路径仅包括具有非常低的插入损耗的元件。无线局域网（WLAN）包括发射机，接收机，天线和开关电路。

2. 发明申请

US20040248523A1 Radio antenna apparatus provided with controller for controlling SAR and radio communication apparatus using the same radio antenna apparatus 有权
标题翻译：具备用于控制SAR的控制器和使用同一无线电天线装置的无线电通信装置的无线电天线装置
公开(公告)号：US20040248523A1
公开(公告)日：2004-12-09
申请号：US10824347
申请日：2004-04-15
发明人： Shotaro Nishimura , Atsushi Yamamoto , Koichi Ogawa , Hiroshi Iwai
IPC分类号： H04B001/44
CPC分类号： H04B1/3838 , H01Q1/245 , H01Q3/44 , H01Q19/26 , H01Q21/29
摘要： A radio antenna apparatus is provided with an antenna connected with a radio communication circuit that transmits and receives a radio signal. A load impedance element is connected between a parasitic element of an electrical conductor plate and a ground of a housing of a radio communication apparatus including the radio communication circuit. A controller controls an element value of the load impedance element so as to set a current flowing on the housing to be equal to or smaller than a predetermined value when the radio communication apparatus transmits the radio signal, thereby controlling a specific absorption rate (SAR) to be equal to or smaller than a predetermined value.
摘要翻译：无线电天线装置设置有与发送和接收无线电信号的无线电通信电路连接的天线。负载阻抗元件连接在电导体板的寄生元件和包括无线电通信电路的无线电通信设备的外壳的接地之间。当无线电通信装置发送无线电信号时，控制器控制负载阻抗元件的元件值，以便将在壳体上流动的电流设置为等于或小于预定值，从而控制特定吸收率（SAR）等于或小于预定值。

3. 发明申请

US20040242166A1 Low reflection limiter and transmitting/receiving module utilizing same 有权
标题翻译：低反射限制器和利用它的发射/接收模块
公开(公告)号：US20040242166A1
公开(公告)日：2004-12-02
申请号：US10695793
申请日：2003-10-30
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Yoshiyuki Ikuma
IPC分类号： H04B001/44
CPC分类号： H04B1/44
摘要： A transmitting/receiving module includes a first amplifier for amplifying a transmission signal, a second amplifier for amplifying a receiving signal, and a low reflection limiter provided on an input side of said second amplifier. There may be further provided a radiator from which the transmitting signal is to be radiated into an air and to which the receiving signal is to be received, and a circulator having a first terminal, a second terminal and a third terminal, in which the transmitting signal is inputted to the first terminal, the receiving signal is received by the radiator connected to the second terminal, the third terminal is connected to the second amplifier, and the low reflection limiter is provided between the circulator and the second amplifier.
摘要翻译：发送/接收模块包括用于放大发送信号的第一放大器，用于放大接收信号的第二放大器和设置在所述第二放大器的输入侧的低反射限制器。可以进一步提供一种辐射器，其中发射信号将被辐射到空中并接收接收信号;以及循环器，具有第一端子，第二端子和第三端子，其中传输信号被输入到第一端子，接收信号由连接到第二端子的散热器接收，第三端子连接到第二放大器，并且低反射限制器设置在循环器和第二放大器之间。

4. 发明申请

US20040224643A1 Front end module 有权
标题翻译：前端模块
公开(公告)号：US20040224643A1
公开(公告)日：2004-11-11
申请号：US10774607
申请日：2004-02-10
申请人： TDK Corporation
发明人： Shinya Nakai
IPC分类号： H04B001/44
CPC分类号： H04B1/0057 , H01L2224/16225 , H01L2224/16235 , H01L2924/00014 , H01L2924/15192 , H01L2924/15311 , H01L2924/15313 , H01L2924/16251 , H04B1/406 , H04B1/44 , H04B1/52 , H01L2224/0401
摘要： A front end module comprises a diplexer, a first duplexer, and a second duplexer. The first duplexer is connected to the diplexer through a first high frequency switch and separates transmission signals and reception signals of the N-CDMA from each other. The second duplexer is connected to the diplexer through a second high frequency switch and separates transmission signals and reception signals of the W-CDMA from each other. Each of the duplexers includes acoustic wave elements. A single multi-layer substrate for integration is used to integrate the components of the front end module. The diplexer is made up of a conductor layer located inside or on the surface of the multi-layer substrate.
摘要翻译：前端模块包括双工器，第一双工器和第二双工器。第一双工器通过第一高频开关连接到双工器，并将N-CDMA的传输信号和接收信号彼此分离。第二双工器通过第二高频开关连接到双工器，并将W-CDMA的发送信号和接收信号彼此分离。每个双工器包括声波元件。用于集成的单个多层基板用于集成前端模块的部件。双工器由位于多层基板的内部或表面的导体层构成。

5. 发明申请

US20040171356A1 High frequency switch, radio communication apparatus, and high frequency switching method 有权
标题翻译：高频开关，无线通信装置和高频切换方式
公开(公告)号：US20040171356A1
公开(公告)日：2004-09-02
申请号：US10472309
申请日：2004-03-26
发明人： Kazuhide Uriu , Toru Yamada , Hideaki Nakakubo , Masaharu Tanaka
IPC分类号： H04B001/44
CPC分类号： H04B1/406 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/48
摘要： For example, in a conventional high frequency switch used for a mobile phone and so on, high frequency distortion is caused by a diode which is turned off upon transmission. A high frequency switch includes a switch circuit 2 for switching transmission and reception performed via a transmitting terminal Tx2 and receiving terminals Rx2 and Rx3, said switch circuit having a diode D1 turned off upon transmission, and a low-pass filter 11 for suppressing high frequency distortion caused by the diode D1 upon transmission.
摘要翻译：例如，在用于移动电话等的常规高频开关中，高频失真是由传输时关闭的二极管引起的。高频开关包括用于切换通过发送端子Tx2进行发送和接收的开关电路2和接收端子Rx2和Rx3，所述开关电路在发送时具有截止的二极管D1和用于抑制高频的低通滤波器11 传输时由二极管D1引起的失真。

6. 发明申请

US20040141470A1 Apparatus, methods and articles of manufacture for a multi-band switch 有权
标题翻译：用于多频带开关的装置，方法和制品
公开(公告)号：US20040141470A1
公开(公告)日：2004-07-22
申请号：US10737375
申请日：2003-12-16
申请人： M/A COM, Inc.
发明人： Mark F. Kelcourse , Christopher N. Brindle
IPC分类号： H04B001/44
CPC分类号： H01P1/15 , H03K17/693 , H04B1/0057 , H04B1/006 , H04B1/406
摘要： The invention is directed to a multi-band switch having a transmitter switching section with a plurality of transmission ports, and a receiver switching section with a plurality of receiver ports, each having associated switching topologies to switch one of the ports to an antenna port. The switching topologies may use a plurality of series-connected FETs, such as insulated gate n-channel FETs, where the transmitter port switching elements may have larger switching transistors than the receiver port switching elements. The main signal path transistors of the transmitter and receiver switching elements be interdigitated FETs, in which source region fingers and drain region fingers alternate within the transistor area. These interdigitated source and drain regions may be spaced apart from each other by a sinuous channel region, over which is a gate metallization.
摘要翻译：本发明涉及具有多个传输端口的发射机切换部分和具有多个接收机端口的接收机切换部分的多频带交换机，每个接收机端口具有相关联的交换拓扑以将一个端口切换到天线端口。开关拓扑可以使用多个串联连接的FET，例如绝缘栅极n沟道FET，其中发射器端口开关元件可以具有比接收器端口开关元件更大的开关晶体管。发射器和接收器开关元件的主要信号路径晶体管是交叉指示的FET，其中源极区域指状物和漏极区域指状物在晶体管区域内交替。这些交叉的源极和漏极区域可以通过沟道区域彼此间隔开，栅极金属化在其上。

7. 发明申请

US20040137854A1 Smart amplifier for time division duplex wireless applications 有权
公开(公告)号：US20040137854A1
公开(公告)日：2004-07-15
申请号：US10743754
申请日：2003-12-24
发明人： David Ge
IPC分类号： H04B001/44
CPC分类号： H04B1/3877 , H03G3/3042 , H04B1/48 , H04B1/56
摘要： A bi-directional antenna-mount amplifier particularly suited to be compatible with a broad range of advanced spread spectrum TDD wireless applications relying on either direct sequence or frequency hopping, at a wide range of frequencies, and which allows the radio device sharing of an associated antenna in different time intervals, where signal distortion is minimized due to operation of the amplifier which is governed by an equation and associated gain control circuits to maintain constant output power and prevent transmit signal saturation.

8. 发明申请

US20040052271A1 Mode switching in transceiver of a mobile terminal 失效
标题翻译：移动终端收发器中的模式切换
公开(公告)号：US20040052271A1
公开(公告)日：2004-03-18
申请号：US10646126
申请日：2003-08-22
申请人： LG Electronics Inc.
发明人： Jae Wook Yu
IPC分类号： H04B001/44
CPC分类号： H04B1/406 , H04B1/48 , H04B1/56 , H04W56/003 , Y02D70/40
摘要： A mode switching method in a mobile communication system is provided. The method comprises providing a mode switching start point between an uplink signal and a downlink signal of a transceiver; resetting the mode switching start point based on length of a guard period provided between the uplink signal and the downlink signal; and starting mode switching at the mode switching start point.
摘要翻译：提供了一种移动通信系统中的模式切换方法。该方法包括在收发信机的上行链路信号和下行链路信号之间提供模式切换起始点; 基于在上行链路信号和下行链路信号之间提供的保护周期的长度来重置模式切换起始点; 并在模式切换开始点启动模式切换。

9. 发明申请

US20040009782A1 Transmission power control method in wireless mobile device 审中-公开
标题翻译：无线移动设备中的传输功率控制方法
公开(公告)号：US20040009782A1
公开(公告)日：2004-01-15
申请号：US10344005
申请日：2003-02-13
发明人： Hirokazu Shimizu
IPC分类号： H04B001/44
CPC分类号： H04W52/08 , H04W52/146 , H04W52/228 , H04W52/283 , H04W52/285 , H04W52/36
摘要： In code division multiple access (CDMA) mobile communications system in handing-over allowing wireless mobile station to be connected to a plurality of base stations simultaneously the mobile station uses transmission power control (TPC) information received from each base station to control transmission power and when the information is not reliable (SP1) a link's quality (a signal to interference ratio (SIR)) is compared with a threshold and until the quality exceeds the threshold and the information recovers in reliability the transmission power is controlled to have a fixed level to present the transmission power from attaining maximal transmission power (SP2).
摘要翻译：在允许无线移动站同时连接到多个基站的码分多址（CDMA）移动通信系统中，移动站使用从每个基站接收的发射功率控制（TPC）信息来控制发射功率，当信息不可靠（SP1）时，将链路的质量（信号干扰比（SIR））与阈值进行比较，直到质量超过阈值，并且信息在可靠性上恢复，发送功率被控制为具有固定的水平以发送功率达到最大发送功率（SP2）。

10. 发明申请

US20040005868A1 Method for controlling access to a determined space via a personalised portable object, and portable object for implementing the same 审中-公开
标题翻译：用于通过个性化便携式对象来控制对确定的空间的访问的方法，以及用于实现它的便携式对象
公开(公告)号：US20040005868A1
公开(公告)日：2004-01-08
申请号：US10612130
申请日：2003-07-02
发明人： Olivier Desjeux , Thierry Roz
IPC分类号： H04B001/44
CPC分类号： G07C9/00309 , G07C2009/00555 , G07C2009/00793
摘要： The method for controlling access by a personalised portable object (2) to a determined space is achieved by wireless transmission of an encoded identification signal. In order to do this, electronic means are provided in the space, whereas the portable object includes a processing unit (26) connected to signal transmission (22, 28) and/or reception means (21, 17). An encoded identification signal is transmitted by the transmission means of the portable object (2) or by transmission means provided in the determined space. This encoded identification signal is received by reception means provided in the space or in the portable object, when the object is located in a restricted zone around the electronic means provided in the space. The received encoded signal is verified in the electronic means provided in the space or in the processing unit (26) to authorise access to the space. The encoded identification signal transmitted and received includes an analogue signature specific to the pair formed by the personalised portable object (2) and the electronic means provided in the space. Thus, verification consists in comparing this analogue signature with a stored reference signature in order to authorise access to the space if said signature is recognised.
摘要翻译：通过编码的识别信号的无线传输来实现用于控制由个性化便携式对象（2）到确定空间的访问的方法。为了做到这一点，电子装置被提供在空间中，而便携式物体包括连接到信号传输（22,28）和/或接收装置（21,17）的处理单元（26）。编码的识别信号由便携式物体（2）的发送装置或设置在确定的空间中的发送装置发送。当对象位于设置在该空间中的电子装置周围的限制区域内时，该编码的识别信号由设置在该空间中的便携式物体中的接收装置接收。接收到的编码信号在设置在空间或处理单元（26）中的电子装置中被验证以授权访问该空间。发送和接收的编码识别信号包括由个性化便携式对象（2）和设置在该空间中的电子装置形成的对特有的模拟签名。因此，验证包括将该模拟签名与存储的参考签名进行比较，以便如果所述签名被识别则授权对该空间的访问。

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