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1. 发明申请

WO1998028815A1 L-BAND QUADRIFILAR HELIX ANTENNA 审中-公开
标题翻译： L-BAND QUADRIFILAR HELIX天线
公开(公告)号：WO1998028815A1
公开(公告)日：1998-07-02
申请号：PCT/US1997022891
申请日：1997-12-15
申请人： ERICSSON, INC. , O'NEILL, Gregory, A., Jr.
发明人： ERICSSON, INC.
IPC分类号： H01Q11/08
CPC分类号： H01Q11/08 , H01Q1/242 , H01Q5/50
摘要： Physically small quadrifilar helix antenna systems capable of providing a positive gain, quasi-hemispherical antenna pattern over a relatively broadband frequency range in the L-Band frequency band. The antenna systems according to the present invention generally comprise a quadrifilar helix antenna and at least one antenna feed network, and may further comprise matching means for improving the broadband frequency performance of the antenna. In a preferred embodiment, the elements of the quadrifilar helix antenna which form each bifilar helix are short-circuited at their distal ends, and energy is fed to and induced from the antenna via receive and transmit 90 DEG hybrid couplers which are electrically connected to the bifilar loops of the quadrifilar helix antenna. The antenna systems may further include first and second circuit branches for changing the resonant frequency of the antenna to first and second resonant frequencies corresponding to separate transmit and reveive frequency bands, and switches or other disconnection means which are used to electrically isolate the first circuit branch from the antenna during periods when the antenna is receiving a signal and to electrically isolate the second circuit branch from the antenna during periods of transmission.
摘要翻译：物理上小的四边形螺旋天线系统能够在L波段频段的相对宽带频率范围内提供正增益准半球形天线方向图。根据本发明的天线系统通常包括四极螺旋天线和至少一个天线馈电网络，并且还可以包括用于改善天线的宽带频率性能的匹配装置。在优选实施例中，形成每个双螺旋线的四边形螺旋天线的元件在其远端处短路，并且能量通过接收和发射90°混合耦合器馈送到天线并从天线引出，该耦合器电连接到四线螺旋天线的双瓣环。天线系统还可以包括用于将天线的谐振频率改变为对应于单独的发射和反射频带的第一和第二谐振频率的第一和第二电路支路，以及用于将第一电路支路电隔离的开关或其他断开装置在天线正在接收信号期间从天线发射，并且在传输期间将第二电路支路与天线电隔离。

2. 发明申请

WO1998009387A1 METHOD AND APPARATUS FOR IMPROVING THE LINK MARGIN IN WIRELESS COMMUNICATIONS 审中-公开
标题翻译：用于改善无线通信中链路连接的方法和装置
公开(公告)号：WO1998009387A1
公开(公告)日：1998-03-05
申请号：PCT/US1997015036
申请日：1997-08-26
申请人： ERICSSON, INC.
发明人： ERICSSON, INC. , HASSAN, Amer, A. , KARABINIS, Peter, D. , RYDBECK, Nils, Rutger
IPC分类号： H04B07/185
CPC分类号： H04L1/0014 , H04B7/18513 , H04B7/18532 , H04B7/18534 , H04J3/1688 , H04L1/0025
摘要： An apparatus for improving the link margin of a communication link includes a variable rate vocoder which decreases the output bit stream rate it produces so as to reduce the amount of information to be transmitted in the communication link. In one embodiment, the variable rate vocoder includes a plurality of vocoder portions, each of which produces a different bit stream rate. The selector is used for selecting among the output bit streams produced by each vocoder. In another embodiment, a logic device is coupled to the output of the vocoder. The logic device, upon receipt of a control signal, truncates the less important bits. The method for improving link margin includes reducing the vocoder output rate thereby reducing the amount of data being transmitted in a communication link. The method also includes using increased error correction coding and transmitting at increased per bit power levels to increase link margin. A device knows to increase the link margin whenever it receives a request to do so, which request is based upon poor signal quality.
摘要翻译：一种用于改善通信链路的链路余量的装置包括可变速率声码器，其减小其产生的输出比特流速率，以便减少在通信链路中要发送的信息量。在一个实施例中，可变速率声码器包括多个声码器部分，每个声码器部分产生不同的比特流速率。选择器用于在由每个声码器产生的输出比特流之间进行选择。在另一个实施例中，逻辑设备耦合到声码器的输出端。在接收到控制信号时，逻辑设备截断不太重要的位。用于改善链路余量的方法包括降低声码器输出速率，从而减少在通信链路中传输的数据量。该方法还包括使用增加的纠错编码和以增加的每位功率电平进行发送以增加链路余量。一个设备知道如果接收到这样做的请求增加链路容限，哪个请求是基于较差的信号质量的。

3. 发明申请

WO1998028816A1 QUADRIFILAR HELIX ANTENNA SYSTEMS AND METHODS FOR BROADBAND OPERATION IN SEPARATE TRANSMIT AND RECEIVE FREQUENCY BANDS 审中-公开
标题翻译：四边形HELIX天线系统和宽带操作方法在单独发射和接收频段
公开(公告)号：WO1998028816A1
公开(公告)日：1998-07-02
申请号：PCT/US1997023324
申请日：1997-12-16
申请人： ERICSSON, INC. , O'NEILL, Gregory, A., Jr.
发明人： ERICSSON, INC.
IPC分类号： H01Q11/08
CPC分类号： H01Q11/08
摘要： Quadrifilar helix antenna systems for half-duplex communications which are capable of providing a positive gain, quasi-hemispherical antenna pattern over widely separate transmit and receive frequency bands. The antenna systems according to the present invention generally comprise a quadrifilar helix antenna, first and second circuit branches for changing the resonant frequency of the antenna to first and second resonant frequencies corresponding to the transmit and receive frequency bands, and switches or other disconnection means which are used to electrically isolate the first circuit branch from the antenna during periods when the antenna is receiving a signal and to electrically isolate the second circuit branch from the antenna during periods of transmission. In a preferred embodiment, the disconnecting means are implemented as PIN diodes or radio frequency Gallium arsenide field effect transistor switches, the elements of the quadrifilar helix antenna which form each bifilar helix are short-circuited at their distal ends, and energy is fed to and induced from the antenna via receive and transmit 90 DEG hybrid couplers which are electrically connected to the bifilar loops of the quadrifilar helix antenna. Also provided are matching means which are coupled to the elements of the quadrifilar helix antenna for increasing the operating bandwidth of the antenna.
摘要翻译：用于半双工通信的四线螺旋天线系统，其能够在广泛分开的发射和接收频带上提供正增益准半球形天线方向图。根据本发明的天线系统通常包括四极螺旋天线，用于将天线的谐振频率改变为对应于发射和接收频带的第一和第二谐振频率的第一和第二电路支路，以及开关或其他断开装置，用于在天线正在接收信号的时段期间将第一电路支路与天线电隔离，并且在发送期间将第二电路支路与天线电隔离。在优选实施例中，断开装置被实现为PIN二极管或射频砷化镓场效应晶体管开关，形成每个双峰螺旋的四边形螺旋天线的元件在其远端处短路，并且能量被馈送到通过接收和发送90度混合耦合器从天线感应，该耦合器电连接到四极螺旋天线的双相环。还提供了耦合到四极螺旋天线的元件的匹配装置，用于增加天线的工作带宽。

4. 发明申请

WO1998013940A1 ERROR DETECTION SCHEME FOR ARQ SYSTEMS 审中-公开
标题翻译： ARQ系统的错误检测方案
公开(公告)号：WO1998013940A1
公开(公告)日：1998-04-02
申请号：PCT/US1997016780
申请日：1997-09-22
申请人： ERICSSON, INC.
发明人： ERICSSON, INC. , IRVIN, David, R. , KHAYRALLAH, Ali, S.
IPC分类号： H03M13/00
CPC分类号： H03M13/093 , G11B20/1803 , H04L1/0001 , H04L1/1628 , H04L1/18 , H04L1/1806 , H04L1/1809 , H04L1/1812 , H04L1/1838 , H04L1/1845 , H04L1/1877 , H04L1/188 , H04L2001/0093
摘要： An error detection and correction scheme for automatic repeat request (ARQ) systems in which multiple copies of a received data packet comprising a CRC field are compared to each other to determine the non-unanimous bit positions. If the number of bit positions thus determined lies under a threshold, tentative packets with all possible configurations at the non-unanimous bit positions are tested on validity by CRC check. In order to account for the changes in the header fields between the multiple copies of a received data packet, the CRC fields are calculated before and after modifying the variable header fields of at least some of multiple copies of said received data packet.
摘要翻译：用于自动重复请求（ARQ）系统的错误检测和校正方案，其中将包括CRC字段的接收数据分组的多个副本彼此进行比较，以确定非一致比特位置。如果这样确定的比特位数在一个阈值之下，那么在非一致比特位置具有所有可能配置的临时分组将通过CRC校验进行有效性测试。为了解决接收到的数据分组的多个副本之间的报头字段的变化，在修改所接收的数据分组的多个副本中的至少一些的可变报头字段之前和之后，计算CRC字段。

5. 发明申请

WO1997021284A1 EFFICIENT APPARATUS FOR SIMULTANEOUS MODULATION AND DIGITAL BEAMFORMING FOR AN ANTENNA ARRAY 审中-公开
标题翻译：用于天线阵列的同时调制和数字波束的有效装置
公开(公告)号：WO1997021284A1
公开(公告)日：1997-06-12
申请号：PCT/US1996017739
申请日：1996-11-12
申请人： ERICSSON, INC.
发明人： ERICSSON, INC. , DENT, Paul, W.
IPC分类号： H04B07/204
CPC分类号： H01Q3/26
摘要： A digital beamforming network for transmitting a first number of digital information signal using a second number of antenna array elements is disclosed. Assemblers are used for assembling one information bit selected from each of the information signals into a bit vector. Digital processors have an input for the bit vector and a number of outputs equal to the second number of antenna elements and process the bit vector. Finally, modulation waveform generators coupled to each of the second number of outputs generate a signal for transmission by each antenna element.
摘要翻译：公开了一种用于使用第二数量的天线阵列元件发送第一数量的数字信息信号的数字波束成形网络。汇编器用于将从每个信息信号中选择的一个信息位组合成位向量。数字处理器具有用于位向量的输入和等于第二数量的天线元件的输出数量并处理位向量。最后，耦合到第二数量的输出中的每一个的调制波形发生器产生用于每个天线元件传输的信号。

6. 发明申请

WO1998020659A1 RADIOTELEPHONE HAVING AN ACOUSTICAL WAVE GUIDE COUPLED TO A SPEAKER 审中-公开
标题翻译：具有与扬声器耦合的声音波导的无线电话
公开(公告)号：WO1998020659A1
公开(公告)日：1998-05-14
申请号：PCT/US1997019271
申请日：1997-10-24
申请人： ERICSSON, INC.
发明人： ERICSSON, INC. , RABE, Karl, W.
IPC分类号： H04M01/02
CPC分类号： H04M1/03 , H04M1/0214 , H04M1/0216 , H04R1/225 , H04R1/2857 , H04R1/345
摘要： A radiotelephone having a wave guide for channeling sound energy from a speaker to the ear of a person utilizing the radiotelephone. The wave guide is disposed adjacent the speaker and acts to direct sound energy from the speaker to the vicinity of a person's ear. The wave guide comprises an elongated wall structure having inlet and outlet end portions and a varying cross-sectional area that varies in a uniform and repeating manner between maximum and minimum values. This elongated wave guide with its varying cross-sectional areas forms an acoustical low-pass filter that efficiently transmits and propagates low frequencies, that is frequencies in the range of 300 Hz to 3,000 Hz.
摘要翻译：一种具有波导的无线电话机，用于将声能从扬声器引导到利用无线电话的人的耳朵。波导布置在扬声器附近，用于将声音能量从扬声器引导到人的耳朵附近。波导包括细长的壁结构，其具有入口端和出口端部分以及在最大值和最小值之间以均匀且重复的方式变化的变化的横截面面积。具有其变化的横截面积的这种细长的波导形成了有效地传输和传播低频的声学低通滤波器，即频率在300Hz至3,000Hz的范围内。

7. 发明申请

WO1998016029A3 METHOD FOR IMPROVING CO-CHANNEL INTERFERENCE IN A CELLULAR SYSTEM 审中-公开
公开(公告)号：WO1998016029A3
公开(公告)日：1998-04-16
申请号：PCT/US1997017801
申请日：1997-10-03
申请人： ERICSSON, INC.
发明人： ERICSSON, INC. , REINHOLD, Stanley , HASSAN, Amer , RAMESH, Rajaram
IPC分类号： H04B07/26

8. 发明申请

WO1998003009A1 METHOD FOR TRANSMITTING SUPERIMPOSED IMAGE DATA IN A RADIO FREQUENCY COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在无线电频率通信系统中发送超级图像数据的方法
公开(公告)号：WO1998003009A1
公开(公告)日：1998-01-22
申请号：PCT/US1997011977
申请日：1997-07-09
申请人： ERICSSON, INC. , HASSAN, Amer , MATTHEWS, David
发明人： ERICSSON, INC.
IPC分类号： H04N01/417
CPC分类号： H04N1/4172 , H04N19/30
摘要： The present invention relates to a method for transmitting image data for superimposed images via wireless devices in a radio frequency communication system. The original image is transmitted via a communication channel to a receiving unit. The original image is then revised to form a revised image. The revised image is compared to the original image to determine the differences between the revised image and the original image. These differences comprise a difference image which is then transmitted to the receiving party. At the receiving end, the difference image is recombined with the previously-transmitted original image to reform the revised image. In a preferred embodiment, the original images and difference images are preferably decomposed and progressively transmitted to the receiving unit in response to image data requests from the receiving unit.
摘要翻译：本发明涉及一种用于在射频通信系统中经由无线设备发送叠加图像的图像数据的方法。原始图像经由通信信道被发送到接收单元。然后修改原始图像以形成修订图像。将修正后的图像与原始图像进行比较，以确定修正图像与原始图像之间的差异。这些差异包括然后发送到接收方的差异图像。在接收端，差分图像与先前发送的原始图像重新组合以改进修改的图像。在优选实施例中，原始图像和差异图像优选地被分解并且响应于来自接收单元的图像数据请求而逐渐发送到接收单元。

9. 发明申请

WO1997044912A1 METHOD AND APPARATUS FOR AUTOMATICALLY CONFIGURING A CONTROL PROGRAM FOR A MOBILE RADIO COMMUNICATION DEVICE 审中-公开
标题翻译：用于自动配置移动无线电通信设备的控制程序的方法和装置
公开(公告)号：WO1997044912A1
公开(公告)日：1997-11-27
申请号：PCT/US1997008269
申请日：1997-05-15
申请人： ERICSSON, INC. , ANDREWS, Craig, A.
发明人： ERICSSON, INC.
IPC分类号： H04B01/38
CPC分类号： H04M1/72575 , H04B1/3816 , H04B1/40
摘要： A mobile telephone has a programmable controller for controlling the operation of the mobile telephone. The programmable controller has a plurality of selectable program configurations. An interchangeable component of the mobile telephone, such as the front cover of the housing, includes a program selector for indicating a selected program configuration. A detection circuit detects the program selector and generates a configuration signal representing the selected program configuration. The programmable controller is responsive to the configuration signal generated by the detection circuit to configure the control program according to the selected program configuration.
摘要翻译：移动电话具有用于控制移动电话的操作的可编程控制器。可编程控制器具有多个可选程序配置。移动电话的可互换组件，例如外壳的前盖，包括用于指示所选程序配置的程序选择器。检测电路检测程序选择器并产生表示所选程序配置的配置信号。可编程控制器响应于由检测电路产生的配置信号，以根据所选择的程序配置配置控制程序。

10. 发明申请

WO1996041439A1 STANDBY POWER SAVING IN MOBILE PHONES 审中-公开
标题翻译：移动电话中的待机节电
公开(公告)号：WO1996041439A1
公开(公告)日：1996-12-19
申请号：PCT/US1996008523
申请日：1996-05-31
申请人： ERICSSON, INC.
发明人： ERICSSON, INC. , CROFT, Thomas, M. , DENT, Paul, W. , CROUGHWELL, William, J., III
IPC分类号： H04L01/00
CPC分类号： H04L7/048 , H04L1/0053 , H04L1/0057 , H04L1/0061 , H04L1/08 , H04M19/08 , H04W52/0216 , H04W52/0229 , H04W52/0235 , Y02D70/00
摘要： A method and system for increasing the probability of receiving a message in mobile communication systems. The invention uses a synchronization pattern to determine the location of an intended message. In addition, the invention uses the CRC check status of several sample timing positions spanning an expected message location to determine whether to accept a message. The expected message location is based on the sample timings of previous messages which are determined from a histogram of how frequently various sample timing positions have been selected in the past.
摘要翻译：一种用于增加在移动通信系统中接收消息的概率的方法和系统。本发明使用同步模式来确定预期消息的位置。此外，本发明使用跨越预期消息位置的几个采样定时位置的CRC校验状态来确定是否接受消息。期望的消息位置是基于从过去已经选择了各种采样定时位置的频率的直方图确定的先前消息的采样定时。

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