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公开(公告)号：US4972199A
公开(公告)日：1990-11-20
申请号：US331422
申请日：1989-03-30
CPC分类号： H01Q25/001 , H01Q19/17 , H01Q5/45
摘要： An antenna is constructed of an array of contiguous circular cylindrical radiators each of which extends forwardly of a radiator assembly producing two circularly polarized waves of opposite direction of rotation of their respective electric fields. The radiators measure one wavelength at the transmit frequency band, and approximately 1.5 wavelengths in diameter at the receive frequency band. A section of cylindrical waveguide in the back of each radiator assembly encloses a microwave structure for generating the circularly polarized waves, the microwave structure including an orthomode transducer at the back of the assembly and an electric field rotator disposed forward of the orthomode transducer. In each radiator assembly, there is disposed between the rotator and the radiator a transition between smaller diameter waveguide to larger diameter waveguide. The transition may have the form of a step or a flare for a more gradual transition. The transducer produces a higher order TM.sub.11 mode which is evanescent within the radiator 24. By attenuating the transverse magnetic mode, a match is made between electric field components thereof and those of curved electric fields of the dominant propagating modes to cancel curvature and reduce cross polarization between the two circularly polarized waves in each radiator.
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2.发明授权Wireless devices and methods of operating wireless devices based on the presence of another person 有权基于另一人的存在来操作无线设备的无线设备和方法公开(公告)号：US08781452B2
公开(公告)日：2014-07-15
申请号：US13031418
申请日：2011-02-21
申请人： Krishnan Raghavan
发明人： Krishnan Raghavan
CPC分类号： H04M1/72563 , H04M1/7253 , H04M1/72558 , H04M1/72569 , H04M1/72572 , H04M3/42365 , H04M2207/18
摘要： A method of operating a device for a user is provided. The method includes operating the device in a first mode; receiving an indication of a first person in the presence of the user; retrieving a first profile associated with the first person; and operating the device in a second mode based, at least in part, on the first profile.
摘要翻译： 提供了一种为用户操作设备的方法。 该方法包括以第一模式操作设备; 在所述用户的存在下接收第一人的指示; 检索与第一人相关联的第一简档; 以及至少部分地基于所述第一简档来以第二模式操作所述设备。
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3.发明申请公开(公告)号：US20130160046A1
公开(公告)日：2013-06-20
申请号：US13326568
申请日：2011-12-15
IPC分类号： H04N21/80
CPC分类号： H04N21/812 , H04N21/23424 , H04N21/2402 , H04N21/2668 , H04N21/4126 , H04N21/43615 , H04N21/43637 , H04N21/44008 , H04N21/4402 , H04N21/4516 , H04N21/4532
摘要： A method and apparatus for streaming content is disclosed. A streamer (155) detects a cue for a break in a segment of the program content, wherein the cue includes an identification of an advertising provider associated with the break. The streamer sends, to an advertisement server (115), a request for content associated with the advertising provider, and receives, from the advertisement server, an advertisement associated with the advertising provider. Further, the streamer transcodes the advertisement based on configuration information of an additional device (165) to generate formatted content viewable on the additional device. Moreover, the streamer streams the formatted content to the additional device via the local connection.
摘要翻译： 公开了流内容的方法和装置。 流分送器（155）检测节目内容的片段中断的提示，其中提示包括与休息相关联的广告提供者的标识。 流传送器向广告服务器（115）发送与广告提供者相关联的内容的请求，并且从广告服务器接收与广告提供者相关联的广告。 此外，流传送器基于附加设备（165）的配置信息来转码广告，以生成可在附加设备上查看的格式化内容。 此外，流分送器通过本地连接将格式化的内容流式传输到附加设备。
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4.发明申请公开(公告)号：US20130132329A1
公开(公告)日：2013-05-23
申请号：US13300713
申请日：2011-11-21
申请人： Krishnan Raghavan
发明人： Krishnan Raghavan
IPC分类号： G06N5/04
CPC分类号： G06F12/0223 , G06F3/06 , G06F3/0617 , G06F3/0644 , G06F3/0653 , G06F3/0679 , G06F11/00 , G06F11/1461 , G06F11/3013 , G06F11/3409 , G06F11/3485 , G06F2212/1032 , G06F2212/1036 , G06F2212/171 , G06F2212/7204
摘要： A method and apparatus store media data on a portable electronic device. The method can include monitoring media data storage activity regarding user media data storage activity usage patterns that store media data in a memory in a portable electronic device. The method can include storing the media data storage activity data in the portable electronic device. The method can include triggering a full memory prediction algorithm based on a user action event that affects media data storage in the memory and can include running the full memory prediction algorithm in response to the trigger. The full memory prediction algorithm can predict when the memory will be substantially full based on past user media data storage behavior according to the media data storage activity data. The method can include outputting a potential upcoming full memory indication.
摘要翻译： 一种方法和装置将媒体数据存储在便携式电子设备上。 该方法可以包括监视关于将媒体数据存储在便携式电子设备中的存储器中的用户媒体数据存储活动使用模式的媒体数据存储活动。 该方法可以包括将媒体数据存储活动数据存储在便携式电子设备中。 该方法可以包括基于影响存储器中的媒体数据存储的用户动作事件触发全存储器预测算法，并且可以包括响应于触发而运行全存储器预测算法。 完整的存储器预测算法可以根据媒体数据存储活动数据，基于过去的用户媒体数据存储行为来预测存储器将何时基本上已满。 该方法可以包括输出潜在的即将到来的全存储器指示。
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公开(公告)号：US5428322A
公开(公告)日：1995-06-27
申请号：US198420
申请日：1994-02-22
CPC分类号： H01P1/2138
摘要： A right angle waveguide junction for a microwave multiplexer is provided including a step in one of the waveguides for improved electrical response. A rectangular waveguide manifold (10) is coupled to a filter (12) which includes a coupling iris (14) and a circular cavity resonator (16). The circular cavity resonator is a circular waveguide with two ends closed by a metal wall. The structure of the waveguide multiplexer includes a step change (18) in the rectangular waveguide (10) height which controls the electrical response properties of the junction.
摘要翻译： 提供了一种用于微波多路复用器的直角波导结，其包括在一个波导中的步骤以改善电响应。 矩形波导歧管（10）耦合到包括耦合光圈（14）和圆形腔谐振器（16）的滤光器（12）。 圆形空腔谐振器是一个圆形波导，两端由金属壁封闭。 波导多路复用器的结构包括矩形波导（10）高度中的阶跃变化（18），其控制结的电响应特性。
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公开(公告)号：US5134420A
公开(公告)日：1992-07-28
申请号：US520298
申请日：1990-05-07
CPC分类号： H01Q13/04
摘要： A bicone microwave antenna having an orthomode tee as an input/output terminal, an internal dielectric polarizer, a circular waveguide with eight longitudinal radiating slots, two 30 degree conical reflectors, an external meanderline polarizer, and a partial circular waveguide short. An RF signal from the input/output terminal is converted into a rotating TE.sub.11 mode by the internal dielectric polarizer. The radiating slots in combination with the conical reflectors radiate the RF signal as a horizontally polarized field in a doughnut-shaped pattern. The meanderline polarizer converts the horizontally polarized field into a circularly polarized field. The partial circular waveguide short leaks a predetermined amount of radiation out the end of the waveguide to fill the center hole of the doughnut-shaped radiation pattern, thus producing a hemispherical RF beam having an elevation angle from 110 to -110 degrees. The use of impedance-matching circular rings in the waveguide further enhances the ability of the antenna to operate in three frequency bands.
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7.发明授权公开(公告)号：US09462328B2
公开(公告)日：2016-10-04
申请号：US13326568
申请日：2011-12-15
IPC分类号： H04N7/10 , H04N7/025 , H04N21/436 , H04N21/41 , H04N21/4363 , H04N21/4402 , H04N21/45 , H04N21/81 , H04N21/44
CPC分类号： H04N21/812 , H04N21/23424 , H04N21/2402 , H04N21/2668 , H04N21/4126 , H04N21/43615 , H04N21/43637 , H04N21/44008 , H04N21/4402 , H04N21/4516 , H04N21/4532
摘要： A method and apparatus for streaming content is disclosed. A streamer (155) detects a cue for a break in a segment of the program content, wherein the cue includes an identification of an advertising provider associated with the break. The streamer sends, to an advertisement server (115), a request for content associated with the advertising provider, and receives, from the advertisement server, an advertisement associated with the advertising provider. Further, the streamer transcodes the advertisement based on configuration information of an additional device (165) to generate formatted content viewable on the additional device. Moreover, the streamer streams the formatted content to the additional device via the local connection.
摘要翻译： 公开了流内容的方法和装置。 流分送器（155）检测节目内容的片段中断的提示，其中提示包括与休息相关联的广告提供者的标识。 流传送器向广告服务器（115）发送与广告提供者相关联的内容的请求，并且从广告服务器接收与广告提供者相关联的广告。 此外，流传送器基于附加设备（165）的配置信息来转码广告，以生成可在附加设备上查看的格式化内容。 此外，流分送器通过本地连接将格式化的内容流式传输到附加设备。
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8.发明申请WIRELESS DEVICES AND METHODS OF OPERATING WIRELESS DEVICES BASED ON THE PRESENCE OF ANOTHER PERSON 有权无线设备和基于其他人的存在的无线设备的操作方法公开(公告)号：US20120214461A1
公开(公告)日：2012-08-23
申请号：US13031418
申请日：2011-02-21
申请人： Krishnan Raghavan
发明人： Krishnan Raghavan
IPC分类号： H04M3/00
CPC分类号： H04M1/72563 , H04M1/7253 , H04M1/72558 , H04M1/72569 , H04M1/72572 , H04M3/42365 , H04M2207/18
摘要： A method of operating a device for a user is provided. The method includes operating the device in a first mode; receiving an indication of a first person in the presence of the user; retrieving a first profile associated with the first person; and operating the device in a second mode based, at least in part, on the first profile.
摘要翻译： 提供了一种为用户操作设备的方法。 该方法包括以第一模式操作设备; 在所述用户的存在下接收第一人的指示; 检索与第一人相关联的第一简档; 以及至少部分地基于所述第一简档来以第二模式操作所述设备。
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公开(公告)号：US5614877A
公开(公告)日：1997-03-25
申请号：US405423
申请日：1995-03-15
申请人： Krishnan Raghavan , Rolf Kich , Paul J. Tatomir
发明人： Krishnan Raghavan , Rolf Kich , Paul J. Tatomir
IPC分类号： H01P7/06
CPC分类号： H01P7/06
摘要： A bandpass microwave filter (32) is constructed by use of a right cylindrical cavity resonator (10) wherein end regions (22, 24) of the resonator are tapered. The tapering is accomplished by replacing end portions of a right cylindrical sidewall with frusto-conic sections (22, 24) of side wall. Each frusto-conic section joins a central cylindrical section (26) of the sidewall with a planar end wall (14, 16). Each of the end walls is provided with a coupling slot (28, 30) having dimensions substantially smaller than a half wavelength of the center resonant frequency of the resonator so as to be a nonresonant slot. The slots in the end walls may be coupled to rectangular waveguides (34, 36) which form input and output ports by which electromagnetic signals are applied to and extracted from the resonator.
摘要翻译： 带通微波滤波器（32）通过使用谐振器的端部区域（22,24）呈锥形的右圆柱形空腔谐振器（10）构成。 通过将右圆柱形侧壁的端部替换为侧壁的截头圆锥形截面（22,24）来实现锥形化。 每个截头圆锥形部分将侧壁的中心圆柱形部分（26）与平坦的端壁（14,16）连接。 每个端壁设置有具有基本上小于谐振器的中心谐振频率的半波长的尺寸的耦合槽（28,30），以便是非共振槽。 端壁中的槽可以耦合到矩形波导（34,36），矩形波导形成输入和输出端口，电磁信号通过该端口施加到谐振器和从谐振器中提取。
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公开(公告)号：US4998113A
公开(公告)日：1991-03-05
申请号：US370659
申请日：1989-06-23
摘要： A horn radiator assembly includes two horn radiators each of which is formed as a conical horn and a waveguide of constant cross section connected to the small end of the horn as a feed and providing a signal port. The first of the horn radiators is of relatively large cross section and serves to radiate electromagnetic waves at a relatively low frequency. The second of the horn radiators is of relatively small cross section and serves to radiate electromagnetic waves at a relatively high frequency. The second radiator is nested within the first radiator, and is positioned with its radiating aperture coplanar with the radiating aperture of the first radiator. In the second radiator, the waveguide feed is provided with a bend allowing the waveguide feed to pass through a wall of the first radiator. A strut may be affixed to the bend to provide a symmetrical transverse support within the first radiator for the second radiator. A doubly-tapered electrically conductive sheet extends from an apex within the throat of the first radiator horn to the transverse support, and from there tapers back to contact the horn of the second radiator. The tapered sheet guides low-frequency radiation past the strut and the bend to minimize standing wave ratio.
摘要翻译： 喇叭辐射器组件包括两个喇叭辐射器，每个喇叭辐射器形成为圆锥形喇叭，恒定横截面波导连接到喇叭的小端作为馈电并提供信号端口。 喇叭辐射器中的第一个具有较大的横截面，用于以较低的频率辐射电磁波。 第二个喇叭辐射器的横截面相对较小，用于以较高的频率辐射电磁波。 第二散热器嵌套在第一散热器内，并且其辐射孔定位成与第一散热器的辐射孔共面。 在第二散热器中，波导进料设置有允许波导进给通过第一辐射器的壁的弯曲。 支柱可以固定到弯曲部以在第一辐射器内为第二辐射器提供对称的横向支撑。 双锥形导电片从第一散热器喇叭的喉部中的顶点延伸到横向支撑件，并且从那里逐渐变细以接触第二散热器的喇叭。 锥形片引导低频辐射穿过支柱和弯曲，以最小化驻波比。
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