专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4312064A Modified vestigial side band transmission system 失效
标题翻译：改进的残留边带传输系统
公开(公告)号：US4312064A
公开(公告)日：1982-01-19
申请号：US115378
申请日：1980-01-25
申请人： Stephen M. Bench , Paul H. Thibodeau , Guy M. Campbell , Theodore M. Stump
发明人： Stephen M. Bench , Paul H. Thibodeau , Guy M. Campbell , Theodore M. Stump
IPC分类号： H04J1/08 , H04J1/06 , H04J1/12 , H04J1/18
CPC分类号： H04J1/08
摘要： A communication transmission system includes one or more modulated carrier communication channels in which a receiver has a modified vestigial side band filter for eliminating phase cancellation. Accurate design of the modified vestigial side band filters at the receivers, further reduces susceptibility to frequency drift caused by component aging and component response to environmental changes. The system has particular utility in multiple channel carrier telephone communication systems which utilize limited available band width for providing a maximum number of communication channels over an extended length communication line.
摘要翻译：通信传输系统包括一个或多个调制载波通信信道，其中接收机具有用于消除相位消除的经修改的残留边带滤波器。在接收器处对修改后的残留边带滤波器进行精确设计，进一步降低了由元件老化引起的频率漂移的敏感性以及对环境变化的响应。该系统在多信道载波电话通信系统中具有特别的用途，该系统利用有限的可用带宽来在扩展长度的通信线路上提供最大数量的通信信道。

2. 发明授权

US3912870A Digital group modulator 失效
标题翻译：数字组调制器
公开(公告)号：US3912870A
公开(公告)日：1975-10-14
申请号：US42268173
申请日：1973-12-07
申请人： CIT ALCATEL
发明人： ROY MARIE-ANNICK
IPC分类号： H04J1/05 , H04J4/00 , H04J1/08 , H04J1/18
CPC分类号： H04J1/05 , H04J4/005
摘要： Group modulator having digital operation for processing samples taken from n voice frequency channels. Digitized samples are divided into a plurality of subgroups, for example two subgroups of n/2 channels, and applied through first and second double modulation circuits. The respective outputs of the modulation circuits are applied through a circuit which is alternately switched to add and subtract the outputs. After the sums and remainders have been passed through a digital to analog converter, they are alternately switched to be applied through separate analog filters having different pass bands to a common output.

3. 发明授权

US3045070A Multiplex carrier frequency transmission system 失效
标题翻译：多载波频率传输系统
公开(公告)号：US3045070A
公开(公告)日：1962-07-17
申请号：US67944157
申请日：1957-08-21
申请人： ERICSSON TELEFON AB L M
发明人： LENNART KALLSSON BENGT ERIK
IPC分类号： H04J1/18
CPC分类号： H04J1/18

4. 发明授权

US2776429A Multiplex communications system 失效
标题翻译：多路复用通信系统
公开(公告)号：US2776429A
公开(公告)日：1957-01-01
申请号：US20821551
申请日：1951-01-27
申请人： MULTIPLEX DEV CORP
发明人： OLERUD ROY A
IPC分类号： H04H20/88 , H04J1/18
CPC分类号： H04H20/88 , H04J1/18

5. 发明授权

US2722682A Two-way single sideband radio system 失效
标题翻译：双向单边带无线电系统
公开(公告)号：US2722682A
公开(公告)日：1955-11-01
申请号：US23056151
申请日：1951-06-08
申请人： AMERICAN TELEPHONE & TELEGRAPH
发明人： NEISWINTER JAMES T
IPC分类号： H04J1/18
CPC分类号： H04J1/18

6. 发明授权

US2576115A Arrangement for transmitting electric signals occupying a wide frequency band over narrow band circuits 失效
标题翻译：用于发送在窄带电路上占据宽频带的电信号的布置
公开(公告)号：US2576115A
公开(公告)日：1951-11-27
申请号：US631648
申请日：1948-02-04
申请人： INT STANDARD ELECTRIC CORP
发明人： SEYMOUR HILL STUART
IPC分类号： H04J1/18
CPC分类号： H04J1/18

7. 发明申请

US20200084064A1 METHOD FOR COMMUNICATING BETWEEN A MICROCONTROLLER AND A TRANSCEIVER COMPONENT 审中-公开
公开(公告)号：US20200084064A1
公开(公告)日：2020-03-12
申请号：US16616783
申请日：2018-05-24
申请人： Robert Bosch GmbH
发明人： Florian Hartwich , Arthur Mutter , Steffen Walker
IPC分类号： H04L12/40 , H04J3/16 , H04J1/18
摘要： A method for communicating between a microcontroller and a transceiver component. The microcontroller includes a first pin for transmitting output data to the transceiver component. The microcontroller includes a second pin for receiving input data from the transceiver component, which includes a first input for receiving the output data. The transceiver component includes a first output for transmitting the input data. The transceiver component includes an interface for a data bus. The transceiver component transmits output data via the interface and receiving input data via the interface. The transceiver component includes an additional function device with a second input and a second output. Additional data are at least intermittently transferred from the first pin to the second input via the first input, and/or from the second output via the first output to the second pin. A device and a computer program via which this method may be carried out.

8. 发明申请

US20160182160A1 Harmonic Reject Receiver Architecture and Mixer 审中-公开
公开(公告)号：US20160182160A1
公开(公告)日：2016-06-23
申请号：US15056229
申请日：2016-02-29
申请人： MaxLinear, Inc.
发明人： Kishore Seendripu , Raymond Montemayor , Sheng Ye , Glenn Chang , Curtis Ling
IPC分类号： H04B15/00 , H04J1/18 , H04L27/34
CPC分类号： H04B1/26 , H03D3/007 , H03D3/008 , H03D3/009 , H03D7/14 , H03D7/1441 , H03D7/1458 , H03D7/1475 , H03D7/165 , H03D7/166 , H03D2200/0086 , H03H11/22 , H04B1/10 , H04B1/109 , H04B1/12 , H04B1/30 , H04B15/00 , H04J1/18 , H04L27/34
摘要： Receiver architectures and methods of processing harmonic rich input signals employing harmonic suppression mixers are disclosed herein. The disclosed receivers, mixers, and methods enable a receiver to achieve the advantages of switching mixers while greatly reducing the mixer response to the undesired harmonics. A harmonic mixer can include a plurality of mixers coupled to an input signal. A plurality of phases of a local oscillator signal can be generated from a single local oscillator output. Each of the phases can be used to drive an input of one of the mixers. The mixer outputs can be combined to generate a frequency converted output that has harmonic rejection.

9. 发明授权

US08743726B2 System and method for unbalanced relay-based wireless communications 有权
标题翻译：基于中继无线通信的不平衡系统和方法
公开(公告)号：US08743726B2
公开(公告)日：2014-06-03
申请号：US13422781
申请日：2012-03-16
申请人： Hang Zhang , Mo-Han Fong , Peiying Zhu , Jianglei Ma , Wen Tong
发明人： Hang Zhang , Mo-Han Fong , Peiying Zhu , Jianglei Ma , Wen Tong
IPC分类号： H04J1/18 , H04W4/00 , H04L12/28 , H04B7/00
CPC分类号： H04W24/10 , H04B7/155 , H04W72/0406 , H04W84/047 , H04W88/04
摘要： A method and system for wireless communication with a mobile device in which wireless communication is established with the mobile device. A base station is used to transmit directly to the mobile device in a downlink direction. A relay node is used to transmit to the base station communications received in an uplink direction from the mobile station. The relay node relays at least a portion of the uplink traffic received from the mobile station to the base station.
摘要翻译：一种与移动设备进行无线通信的方法和系统，其中与移动设备建立无线通信。基站用于在下行链路方向上直接发送到移动设备。中继节点用于向基站发送从移动台沿上行方向接收的通信。中继节点将从移动站接收的上行链路业务的至少一部分中继到基站。

10. 发明授权

US6014366A Variable-bandwidth frequency division multiplex communication system 失效
标题翻译：可变带宽分频多路复用通信系统
公开(公告)号：US6014366A
公开(公告)日：2000-01-11
申请号：US839753
申请日：1997-04-15
申请人： Osamu Ichiyoshi
发明人： Osamu Ichiyoshi
IPC分类号： H04L27/34 , H04J1/05 , H04J3/00 , H04J4/00 , H04J1/04 , H04J1/18
CPC分类号： H04J4/005
摘要： A variable-bandwidth frequency-division multiplex communication system which needs no interpolation circuits, but uses switch element of simple structure. The system includes a signal combining circuit which has N A/D converters associated respectively with independent information signals to be transmitted, a complex local oscillator for generating complex signals each having a frequency k.DELTA.f (1.ltoreq.k.ltoreq.N-1), .DELTA.f being the channel frequency interval, N complex multipliers for multiplying the outputs of the A/D converters by the respective complex signals, and producing N output signals, a circuit for effecting an inverse Fourier transform of N points, an N.times.N switch circuit connected between the outputs of the complex multipliers and input terminals of the inverse Fourier transform circuit, N digital subfilters connected respectively to the outputs of the inverse Fourier transform circuit, N delay units connected respectively to outputs of the digital subfilters, and an adder for adding output signals from the delay units and outputting a sum signal.
摘要翻译：一种不需要插值电路的可变带宽分频多路复用通信系统，但采用结构简单的开关元件。该系统包括信号组合电路，该信号组合电路具有分别与待传输的独立信息信号相关联的NA / D转换器，复数本地振荡器，用于产生每个具有频率k DELTA f（1≤k≤N-1 ），DELTA f是通道频率间隔，N个复数乘法器，用于将A / D转换器的输出乘以各个复数信号，并产生N个输出信号，用于进行N点的逆傅里叶变换的电路，N×N个开关连接在复数乘法器的输出端和逆傅里叶变换电路的输入端之间的电路，分别连接到傅里叶逆变换电路的输出端的N个数字子滤波器，分别连接到数字子滤波器的输出端的N个延迟单元，以及用于从延迟单元中添加输出信号并输出和信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式