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公开(公告)号：US10983192B2
公开(公告)日：2021-04-20
申请号：US16512861
申请日：2019-07-16
发明人： Herschel A. Ainspan , Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Jean-Oliver Plouchart , Scott K. Reynolds , Mihai A. Sanduleanu , Alberto Valdes Garcia
摘要： Polarimetric transceiver front-ends and polarimetric phased array transceivers include two receive paths configured to receive signals from an antenna, each including a respective variable phase shifter. A first transmit path is connected to the variable phase shifter of one of the two receive paths and is configured to send signals to the antenna. A transmit/receive switch is configured to select between the first transmit path and the two receive paths for signals. The transmit/receive switch has an element that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.
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公开(公告)号：US10602532B2
公开(公告)日：2020-03-24
申请号：US15791995
申请日：2017-10-24
IPC分类号： H04W72/12 , H04W16/28 , H04B7/08 , H04L12/937 , H04L12/933 , H04L12/863
摘要： Methods and systems for wireless packet switching include determining a schedule for a plurality of transceivers in an enclosure. The schedule specifies which of the plurality of transceivers will act as a transmitter and which will act as a receiver. Data is transmitted from each transmitter to a corresponding receiver with a configured beamforming direction. Data is transmitted from a transmitter to a corresponding receiver by a wired connection if an angle of the beamforming direction is lower than a minimum angle.
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公开(公告)号：US10416283B2
公开(公告)日：2019-09-17
申请号：US14837671
申请日：2015-08-27
发明人： Herschel A. Ainspan , Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Jean-Oliver Plouchart , Scott K. Reynolds , Mihai A. Sanduleanu , Alberto Valdes Garcia
摘要： A polarimetric transceiver front-end includes two receive paths configured to receive signals from an antenna, each receive path corresponding to a respective polarization. Each front-end includes a variable amplifier and a variable phase shifter; a first transmit path configured to send signals to the antenna, where the transmit path is connected to the variable phase shifter of one of the two receive paths and includes a variable amplifier; and a transmit/receive switch configured to select between the first transmit path and the two receive paths for signals, where the transmit/receive switch includes a quarter-wavelength transmission line that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.
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公开(公告)号：US10007819B2
公开(公告)日：2018-06-26
申请号：US15498424
申请日：2017-04-26
CPC分类号： G06K7/10366 , G06K7/1097 , G06K19/0723
摘要： RFID (radio frequency identification) systems are provided in which tag and interrogator devices implement a hybrid framework for signaling including an optical transmitter/receiver system and an RF transmitter/receiver system. For instance, an RFID tag device includes: optical receiver circuitry configured to receive an optical signal having an embedded clock signal from an interrogator device, and convert the optical signal into an electrical signal comprising the embedded clock signal; clock extraction circuitry configured to extract the embedded clock signal from the electrical signal, and output the extracted clock signal as a clock signal for controlling clocking functions of the tag device; voltage regulator circuitry configured to generate a regulated supply voltage from the electrical signal, wherein the regulated supply voltage is utilized as a bias voltage for components of the tag device; and data transmitter circuitry configured to wirelessly transmit tag data to the interrogator device.
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公开(公告)号：US20170272125A1
公开(公告)日：2017-09-21
申请号：US15616064
申请日：2017-06-07
CPC分类号： H04B5/0062 , G06K7/10316 , H04B10/803
摘要： RFID (radio frequency identification) systems are provided in which tag and interrogator devices implement a hybrid framework for signaling including an optical transmitter/receiver system and an RF transmitter/receiver system. For instance, an RFID tag device includes: optical receiver circuitry configured to receive an optical signal having an embedded clock signal from an interrogator device, and convert the optical signal into an electrical signal comprising the embedded clock signal; clock extraction circuitry configured to extract the embedded clock signal from the electrical signal, and output the extracted clock signal as a clock signal for controlling clocking functions of the tag device; voltage regulator circuitry configured to generate a regulated supply voltage from the electrical signal, wherein the regulated supply voltage is utilized as a bias voltage for components of the tag device; and data transmitter circuitry configured to wirelessly transmit tag data to the interrogator device.
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公开(公告)号：US20170228568A1
公开(公告)日：2017-08-10
申请号：US15498424
申请日：2017-04-26
IPC分类号： G06K7/10
CPC分类号： G06K7/10366 , G06K7/1097 , G06K19/0723
摘要： RFID (radio frequency identification) systems are provided in which tag and interrogator devices implement a hybrid framework for signaling including an optical transmitter/receiver system and an RF transmitter/receiver system. For instance, an RFID tag device includes: optical receiver circuitry configured to receive an optical signal having an embedded clock signal from an interrogator device, and convert the optical signal into an electrical signal comprising the embedded clock signal; clock extraction circuitry configured to extract the embedded clock signal from the electrical signal, and output the extracted clock signal as a clock signal for controlling clocking functions of the tag device; voltage regulator circuitry configured to generate a regulated supply voltage from the electrical signal, wherein the regulated supply voltage is utilized as a bias voltage for components of the tag device; and data transmitter circuitry configured to wirelessly transmit tag data to the interrogator device.
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公开(公告)号：US20160294481A1
公开(公告)日：2016-10-06
申请号：US14673916
申请日：2015-03-31
CPC分类号： H04B5/0062 , G06K7/10316 , H04B10/803
摘要： RFID (radio frequency identification) systems are provided in which tag and interrogator devices implement a hybrid framework for signaling including an optical transmitter/receiver system and an RF transmitter/receiver system. For instance, an RFID tag device includes: optical receiver circuitry configured to receive an optical signal having an embedded clock signal from an interrogator device, and convert the optical signal into an electrical signal comprising the embedded clock signal; clock extraction circuitry configured to extract the embedded clock signal from the electrical signal, and output the extracted clock signal as a clock signal for controlling clocking functions of the tag device; voltage regulator circuitry configured to generate a regulated supply voltage from the electrical signal, wherein the regulated supply voltage is utilized as a bias voltage for components of the tag device; and data transmitter circuitry configured to wirelessly transmit tag data to the interrogator device.
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公开(公告)号：US09172326B2
公开(公告)日：2015-10-27
申请号：US14036205
申请日：2013-09-25
CPC分类号： H03B5/1847 , H03B1/00 , H03B5/1215 , H03B5/1841 , H03B5/1852 , H03L7/24
摘要： An oscillator and a method of fabricating the oscillator are described. The oscillator includes a resonator with a plurality of transmission lines. An oscillation frequency of the oscillator is independent of at least one dimension of the plurality of transmission lines. The oscillator also includes a negative resistance circuit coupled to the resonator that cancels internal loss resistance of the resonator.
摘要翻译： 描述振荡器和制造振荡器的方法。 振荡器包括具有多条传输线的谐振器。 振荡器的振荡频率与多条传输线的至少一个维度无关。 振荡器还包括耦合到谐振器的负电阻电路，其抵消谐振器的内部损耗电阻。
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公开(公告)号：US09093949B2
公开(公告)日：2015-07-28
申请号：US14031530
申请日：2013-09-19
CPC分类号： H03B5/1206 , H03B5/1215 , H03B5/1228 , H03B5/124
摘要： There is provided an integrated electronic circuit. The integrated electronic circuit includes a voltage controlled oscillator and a frequency doubler connected to the voltage controlled oscillator. A frequency doubling input of the frequency doubler is load isolated from an output of the voltage controlled oscillator.
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公开(公告)号：US20150084703A1
公开(公告)日：2015-03-26
申请号：US14036205
申请日：2013-09-25
IPC分类号： H03B7/02
CPC分类号： H03B5/1847 , H03B1/00 , H03B5/1215 , H03B5/1841 , H03B5/1852 , H03L7/24
摘要： An oscillator and a method of fabricating the oscillator are described. The oscillator includes a resonator with a plurality of transmission lines. An oscillation frequency of the oscillator is independent of at least one dimension of the plurality of transmission lines. The oscillator also includes a negative resistance circuit coupled to the resonator that cancels internal loss resistance of the resonator.
摘要翻译： 描述振荡器和制造振荡器的方法。 振荡器包括具有多条传输线的谐振器。 振荡器的振荡频率与多条传输线的至少一个维度无关。 振荡器还包括耦合到谐振器的负电阻电路，其抵消谐振器的内部损耗电阻。
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