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Patent Agency Ranking
公开(公告)号：US20170288762A1
公开(公告)日：2017-10-05
申请号：US15454261
申请日：2017-03-09
Inventor： KENJI MIYANAGA , YUKIO OKAZAKI
CPC classification number: H04B7/0682 , G01S7/4008 , G01S2013/0254 , H01Q3/267 , H04B1/0475
Abstract: Provided is a phased array transmission device including: a plurality of transmission branches, each being provided with a phase shift unit that applies a phase rotation to a baseband signal, a DC offset correction unit that adds a first correction value to an output signal of the phase shift unit, and a mixer that subjects an output signal of the DC offset correction unit to a frequency conversion to a high frequency band; and a correction control unit that calculates a second correction value with which a carrier leak component included in an output signal of the mixer is minimized, for each of a plurality of candidates for a phase rotation amount that is set for the phase rotation, and determines the first correction value on the basis of the second correction value.
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公开(公告)号：US20160352507A1
公开(公告)日：2016-12-01
申请号：US15156333
申请日：2016-05-17
Inventor： TADASHI MORITA , YUKIO OKAZAKI
CPC classification number: H04L7/06 , H04B7/0613 , H04L7/0016 , H04L27/34
Abstract: A wireless communication apparatus includes multiple antenna devices, a signal generator, a phase shifter, a phase controller, and a quadrature error corrector (phase error corrector and amplitude error corrector). The signal generating circuitry, in operation, generates an IQ signal having an I signal and a Q signal. The plurality of phase shifting circuitry provided for each of the plurality of antenna devices, in operation, generates a plurality of combination signals by combining the I signal and the Q signal based on a predetermined combining scheme. The phase controlling circuitry, in operation, controls the predetermined combining scheme in each of the plurality of phase shifting circuitry. The quadrature error correcting circuitry, in operation, corrects at least one of amplitude combining scheme and phase combining scheme of the predetermined combining scheme in a correction of the predetermined combining scheme.
Abstract translation: 无线通信装置包括多个天线装置，信号发生器，移相器，相位控制器和正交误差校正器（相位误差校正器和振幅误差校正器）。 信号发生电路在工作时产生具有I信号和Q信号的IQ信号。 在操作中为多个天线装置中的每一个提供的多个相移电路通过基于预定的组合方案组合I信号和Q信号来产生多个组合信号。 相位控制电路在操作中控制多个相移电路中的每一个中的预定组合方案。 正交纠错电路在操作中，在预定组合方案的校正中校正预定组合方案的幅度组合方案和相位组合方案中的至少一个。
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3.发明申请BIAS CIRCUIT FOR USE WITH AMPLIFIER CIRCUIT, CONTROL METHOD THEREOF, AND SIGNAL AMPLIFIER 有权使用放大器电路的偏置电路，其控制方法和信号放大器公开(公告)号：US20160142014A1
公开(公告)日：2016-05-19
申请号：US14885671
申请日：2015-10-16
Inventor： YUKIO OKAZAKI , MASAKATSU MAEDA , SHIGEKI NAKAMURA , AKINORI DAIMO
CPC classification number: H03F3/193 , H03F1/0261 , H03F1/301 , H03F3/245 , H03F2200/18 , H03F2200/27 , H03F2200/451 , H03F2200/453 , H03F2200/541 , H03F2200/555
Abstract: A bias circuit comprises: a first circuit that comprises a first resistor and a decoupling capacitor; a bias voltage generation circuit that comprises a first transistor being connected to the first circuit; one or more switches; a first replica circuit comprising a second circuit and a second transistor, the second circuit comprising a second resistor and a capacitor, the second transistor being connected to the second circuit; a second replica circuit comprising a third transistor; a comparator that makes a comparison between a pseudo-bias voltage and a reference voltage; and a control circuit that controls the one or more switches on the basis of the comparison result to reduce the amount of the current flowing through the first transistor.
Abstract translation: 偏置电路包括：第一电路，包括第一电阻器和去耦电容器; 偏置电压产生电路，包括连接到第一电路的第一晶体管; 一个或多个开关; 包括第二电路和第二晶体管的第一复制电路，所述第二电路包括第二电阻器和电容器，所述第二晶体管连接到所述第二电路; 第二复制电路，包括第三晶体管; 比较器，用于比较伪偏置电压和参考电压; 以及基于比较结果控制一个或多个开关的控制电路，以减少流经第一晶体管的电流量。
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公开(公告)号：US20180172814A1
公开(公告)日：2018-06-21
申请号：US15834791
申请日：2017-12-07
Inventor： YUKIO OKAZAKI , HIROFUMI NISHIMURA , ASAKO HAMADA
Abstract: An object detection device includes: a classifier that receives, from a radar device that transmits a transmission wave and receives a reflected wave that is the transmission wave reflected by an object around a subject vehicle, detection result information indicative of an intensity, an azimuth, and a Doppler velocity obtained from a Doppler frequency shift of the reflected wave, and determines whether the detection result information is first detection result information corresponding to a moving object or second detection result information corresponding to a still object; a calculator that calculates distances from the radar device to reflection points of the moving object on the basis of the first detection result information; and an output that supplies, to a predetermined device, first reflection point information indicating the distances of the reflection points and azimuths of the reflection points based on the radar device.
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公开(公告)号：US20170346468A1
公开(公告)日：2017-11-30
申请号：US15600427
申请日：2017-05-19
Inventor： YUKIO OKAZAKI , KAZUTOSHI SATOU , NORIAKI SAITO
CPC classification number: H03K3/014 , G01S7/023 , G01S7/032 , G01S7/28 , G01S13/288 , G01S13/88 , G01S13/931 , G06F1/04 , G06F1/3203 , H03K3/353
Abstract: A radar apparatus includes a transmitter including a plurality of circuits that intermittently transmit one or more radar signals, the plurality of circuits being suspended power supplying during a period in which the one or more radar signals are not transmitted, variation detection circuitry that detects process variations of the plurality of circuits, and determination circuitry that determines a startup timing of each of the plurality of circuits in response to the process variations and outputs startup commands in response to the determined startup timings to the plurality of circuits.
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