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    • 2. 发明授权
    • Freezing and cooling system and heat exchanger device for condensation
    • US06021645A
    • 2000-02-08
    • US9301
    • 1998-01-20
    • Takao Hara
    • Takao Hara
    • F25B1/00F25B39/04F25B41/00
    • F25B39/04F25B2341/062F25B2400/13
    • There is provided a freezing and cooling system as well as a condensing heat exchanger device capable of reducing in size of a condensing heat exchanger device, promoting a cost reduction of the device in a freezing and cooling system as well as energy saving and promoting to keep a global environment, wherein a freezing cycle is formed such that condensing gaseous refrigerant of high temperature and high pressure discharged from a compressor 1 is divided to flow, the over-half amount of condensing gaseous refrigerant is sent into an inner box 6 of a condenser 5 comprised of a double-box type heat exchanger of the inner box 6 and an outer box 7 enclosing the inner box 6, a residual amount of condensing gaseous refrigerant is sent to a capillary coil 8 acting as to increase flowing speed of refrigerant flowing in it, liquid refrigerant of low temperature and low pressure attained through condensing, reducing pressure and expanding at the capillary coil 8 is sent to the outer box 7 of the condenser 5 so as to perform a heat exchanging operation between it and condensing gaseous refrigerant in the inner box 6, thereby the condensing gaseous refrigerant in the inner box 6 is condensed and liquefied, and in turn the liquid refrigerant in the outer box 7 is evaporated and gasified, then liquid refrigerant of high pressure in the inner box 6 is sent to an expansion valve 3 through a liquid pipe 9 to reduce pressure and expand, then it is sent to a cooler 4 to perform a heat exchanging operation of evaporating latent heat between it and either air or cooling water, thereby the refrigerant is evaporated and gasified, the condensing gaseous refrigerant of low pressure evaporated and gasified at the cooler 4 is merged with condensing gaseous refrigerant of low pressure evaporated and gasified at the outer box 7, then the refrigerant is returned back to the compressor 1 and cold heat for use in freezing and cooling operation is obtained at the cooler 4.
    • 3. 发明授权
    • Signal detection circuit
    • 信号检测电路
    • US3952261A
    • 1976-04-20
    • US569541
    • 1975-04-18
    • Takao HaraYukio Murayama
    • Takao HaraYukio Murayama
    • H03L7/095H03B3/04
    • H03L7/095
    • A signal detection circuit for determining synchronism and asynchronism in a phase synchronization circuit having a loop consisting of a first phase detector, a loop filter and a voltage controlled oscillator, has a second phase detector for input signals of the phase synchronization circuit and output signals of the voltage controlled oscillator. The output of the second phase detector is supplied to a low pass filter and a level judgment circuit. The level judgment circuit includes a Schmitt trigger circuit with two threshold levels due to hysteresis effect to reduce misjudgments when the input signals are low signal to noise signals.
    • 用于确定具有由第一相位检测器,环路滤波器和压控振荡器组成的回路的相位同步电路中的同步和异步的信号检测电路具有第二相位检测器,用于相位同步电路的输入信号和 压控振荡器。 第二相位检测器的输出被提供给低通滤波器和电平判断电路。 电平判断电路包括由于滞后效应而具有两个阈值电平的施密特触发电路,以在输入信号为低信噪比信号时减少误判。
    • 4. 发明申请
    • CODE SYNCHRONIZATION CIRCUIT, DELAY TIME MEASUREMENT DEVICE, CONTROL METHOD, CONTROL PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM
    • 代码同步电路,延迟时间测量设备,控制方法,控制程序和计算机可读存储介质
    • US20100316038A1
    • 2010-12-16
    • US12514726
    • 2007-11-16
    • Mayumi OsatoTakao HaraKiyotake Ando
    • Mayumi OsatoTakao HaraKiyotake Ando
    • H04B7/216
    • H04B1/7087G01S5/0221G01S19/00H04B1/7075H04B1/70752H04B1/709H04B7/18528H04B7/2125H04B2201/70715H04J13/102
    • A code synchronization circuit for a delay time measurement device used in a low C/N environment is provided. The code synchronization circuit is capable of high precision timing phase measurement and stable operation against variations in the reception level. For these purposes, the code synchronization circuit includes: a numeric control frequency variable oscillation section (5) for generating a clock signal with a variable frequency; a 2-divider (23) for dividing the clock signal by 2 to generate a component code signal (X); a T/2 delay device (4) for outputting a delayed component code signal (x) lagging in phase behind the component code signal (X) by half a bit; and a second correlator (3B) for outputting a second correlation value indicating similarity between the delayed component code signal (x) and the carrier signal, where the numeric control frequency variable oscillation section (5) controls the frequency of the clock signal according to the second correlation value so that the carrier signal and the clock signal are in sync.
    • 提供了用于低C / N环境下的延迟时间测量装置的编码同步电路。 代码同步电路能够进行高精度的定时相位测量和对接收电平的变化的稳定操作。 为了这些目的,代码同步电路包括:用于产生具有可变频率的时钟信号的数字控制频率可变振荡部分(5); 用于将时钟信号除以2的2分频器(23)以产生分量代码信号(X); T / 2延迟装置(4),用于输出在分量代码信号(X)后面滞后一半的延迟分量代码信号(x); 以及第二相关器(3B),用于输出指示所述延迟分量代码信号(x)和所述载波信号之间的相似度的第二相关值,其中所述数字控制频率可变振荡部分(5)根据所述时钟信号的频率 第二相关值,使得载波信号和时钟信号同步。
    • 5. 发明授权
    • Transmitter and receiver
    • 发射机和接收机
    • US07804764B2
    • 2010-09-28
    • US11989869
    • 2006-08-01
    • Takao HaraAnwar KhoirulKiyotake Ando
    • Takao HaraAnwar KhoirulKiyotake Ando
    • H04J11/00
    • H04L27/265H04H20/33H04H20/42H04H20/72H04H40/27H04L27/2614H04L27/2634
    • The transmitter of one embodiment of the present invention includes: a S/P section for converting original serial data to parallel data which will correspond to a plurality of subcarriers; and a second IFFT section for converting the parallel data from the frequency domain to the time domain. The transmitter includes, between the S/P section and the second IFFT section, a first IFFT section for modulating the plurality of subcarriers using elements of a matrix derived from an expression for Inverse Discrete Fourier Transform involving time domain signal levels and frequency domain signal levels. The configuration enables CI and PO-CI to be implemented on transmitters and receivers with a simple configuration.
    • 本发明的一个实施例的发射机包括:用于将原始串行数据转换成对应于多个子载波的并行数据的S / P部分; 以及用于将来自频域的并行数据转换到时域的第二IFFT部分。 发射机在S / P部分和第二IFFT部分之间包括第一IFFT部分,用于使用从用于涉及时域信号电平和频域信号电平的逆离散傅立叶变换的表达式导出的矩阵的元素来调制多个子载波 。 该配置使CI和PO-CI能够以简单的配置实现在发射机和接收机上。
    • 6. 发明授权
    • Heat converter for condensation and refrigeration system using the same
    • 用于冷凝和制冷系统的换热器使用它
    • US08746007B2
    • 2014-06-10
    • US12088032
    • 2006-09-25
    • Takao HaraTakashi Suzuki
    • Takao HaraTakashi Suzuki
    • F25B1/10
    • F25B1/10F25B39/04F25B41/067F25B2500/01
    • To provide a heat converter for condensation that can be miniaturized and reduced in weight and can promote miniaturization, cost reduction and energy saving of a refrigeration system using the heat converter to thereby contribute to global environment conservation, and a refrigeration system using the heat converter.A heat converter 30 for condensation which changes high-temperature and high-pressure refrigerant gas discharged from a compressor 1 of a refrigeration system to low-temperature refrigerant liquid is constructed by a isobaric cooling unit 3 for cooling the high-temperature and high-pressure refrigerant gas under isobaric change, a pressure-reducing liquefying unit 6 for liquefying gas refrigerant partially-liquefied in the isobaric cooling unit by a refrigerant acceleration phenomenon while the pressure and enthalpy are reduced, and a pressure-reducing and cooling unit 8 for cooling the refrigerant passed through the pressure-reducing and liquefying unit by the refrigerant acceleration phenomenon while the pressure and enthalpy are reduced.
    • 为了提供可以小型化和减轻重量的冷凝用热交换器,并且可以促进使用该热转化器的制冷系统的小型化,成本降低和节能,从而有助于全球环境保护,以及使用该热转化器的制冷系统。 将用于将从制冷系统的压缩机1排出的高温高压制冷剂气体变更为低温制冷剂液体的冷凝用热交换器30由等压冷却单元3构成,用于冷却高温高压 在等压变化下的制冷剂气体,用于液化在等压冷却单元中部分液化的气体制冷剂的减压液化单元6,当压力和焓降低时,通过制冷剂加速现象液化;以及减压和冷却单元8,用于冷却 在压力和焓降低的同时,制冷剂加速现象的制冷剂通过减压液化装置。
    • 7. 发明授权
    • Code synchronization circuit, delay time measurement device, control method, control program, and computer-readable storage medium
    • 代码同步电路,延迟时间测量装置,控制方法,控制程序和计算机可读存储介质
    • US08169948B2
    • 2012-05-01
    • US12514726
    • 2007-11-16
    • Mayumi OsatoTakao HaraKiyotake Ando
    • Mayumi OsatoTakao HaraKiyotake Ando
    • H04B7/212
    • H04B1/7087G01S5/0221G01S19/00H04B1/7075H04B1/70752H04B1/709H04B7/18528H04B7/2125H04B2201/70715H04J13/102
    • A code synchronization circuit for a delay time measurement device used in a low C/N environment is provided. The code synchronization circuit is capable of high precision timing phase measurement and stable operation against variations in the reception level. For these purposes, the code synchronization circuit includes: a numeric control frequency variable oscillation section (5) for generating a clock signal with a variable frequency; a 2-divider (23) for dividing the clock signal by 2 to generate a component code signal (X); a T/2 delay device (4) for outputting a delayed component code signal (x) lagging in phase behind the component code signal (X) by half a bit; and a second correlator (3B) for outputting a second correlation value indicating similarity between the delayed component code signal (x) and the carrier signal, where the numeric control frequency variable oscillation section (5) controls the frequency of the clock signal according to the second correlation value so that the carrier signal and the clock signal are in sync.
    • 提供了用于低C / N环境下的延迟时间测量装置的编码同步电路。 代码同步电路能够进行高精度的定时相位测量和对接收电平的变化的稳定操作。 为了这些目的,代码同步电路包括:用于产生具有可变频率的时钟信号的数字控制频率可变振荡部分(5); 用于将时钟信号除以2的2分频器(23)以产生分量代码信号(X); T / 2延迟装置(4),用于输出在分量代码信号(X)后面滞后一半的延迟分量代码信号(x); 以及第二相关器(3B),用于输出指示所述延迟分量代码信号(x)和所述载波信号之间的相似度的第二相关值,其中所述数字控制频率可变振荡部分(5)根据所述时钟信号的频率 第二相关值,使得载波信号和时钟信号同步。
    • 8. 发明申请
    • HEAT CONVERTER FOR CONDENSATION AND REFRIGERATION SYSTEM USING THE SAME
    • 用于冷凝和制冷系统的热转换器
    • US20090241591A1
    • 2009-10-01
    • US12088032
    • 2006-09-25
    • Takao HaraTakashi Suzuki
    • Takao HaraTakashi Suzuki
    • F25B1/00F25B39/04
    • F25B1/10F25B39/04F25B41/067F25B2500/01
    • To provide a heat converter for condensation that can be miniaturized and reduced in weight and can promote miniaturization, cost reduction and energy saving of a refrigeration system using the heat converter to thereby contribute to global environment conservation, and a refrigeration system using the heat converter.A heat converter 30 for condensation which changes high-temperature and high-pressure refrigerant gas discharged from a compressor 1 of a refrigeration system to low-temperature refrigerant liquid is constructed by a isobaric cooling unit 3 for cooling the high-temperature and high-pressure refrigerant gas under isobaric change, a pressure-reducing liquefying unit 6 for liquefying gas refrigerant partially-liquefied in the isobaric cooling unit by a refrigerant acceleration phenomenon while the pressure and enthalpy are reduced, and a pressure-reducing and cooling unit 8 for cooling the refrigerant passed through the pressure-reducing and liquefying unit by the refrigerant acceleration phenomenon while the pressure and enthalpy are reduced.
    • 为了提供可以小型化和减轻重量的冷凝用热交换器,并且可以促进使用该热转化器的制冷系统的小型化,成本降低和节能,从而有助于全球环境保护,以及使用该热转化器的制冷系统。 将用于将从制冷系统的压缩机1排出的高温高压制冷剂气体变更为低温制冷剂液体的冷凝用热交换器30由等压冷却单元3构成,用于冷却高温高压 在等压变化下的制冷剂气体,用于在压力和焓降低的同时通过制冷剂加速现象液化在等压冷却单元中部分液化的气体制冷剂的减压液化单元6;以及用于冷却 在压力和焓降低的同时,制冷剂加速现象的制冷剂通过减压液化装置。
    • 9. 发明申请
    • Transmitter and Receiver
    • 发射机和接收机
    • US20080219147A1
    • 2008-09-11
    • US11989869
    • 2006-08-01
    • Takao HaraAnwar KhoirulKiyotake Ando
    • Takao HaraAnwar KhoirulKiyotake Ando
    • H04J11/00
    • H04L27/265H04H20/33H04H20/42H04H20/72H04H40/27H04L27/2614H04L27/2634
    • The transmitter of one embodiment of the present invention includes: a S/P section for converting original serial data to parallel data which will correspond to a plurality of subcarriers; and a second IFFT section for converting the parallel data from the frequency domain to the time domain. The transmitter includes, between the S/P section and the second IFFT section, a first IFFT section for modulating the plurality of subcarriers using elements of a matrix derived from an expression for Inverse Discrete Fourier Transform involving time domain signal levels and frequency domain signal levels. The configuration enables CI and PO-CI to be implemented on transmitters and receivers with a simple configuration.
    • 本发明的一个实施例的发射机包括:用于将原始串行数据转换成对应于多个子载波的并行数据的S / P部分; 以及用于将来自频域的并行数据转换到时域的第二IFFT部分。 发射机在S / P部分和第二IFFT部分之间包括第一IFFT部分,用于使用从用于涉及时域信号电平和频域信号电平的逆离散傅立叶变换的表达式导出的矩阵的元素来调制多个子载波 。 该配置使CI和PO-CI能够以简单的配置实现在发射机和接收机上。
    • 10. 发明授权
    • Acquisition system for the SDMA/TDMA satellite communication system
    • SDMA / TDMA卫星通信系统采集系统
    • US3958083A
    • 1976-05-18
    • US551675
    • 1975-02-21
    • Takao HaraYoshikazu TsujiYasuhiko Sakamoto
    • Takao HaraYoshikazu TsujiYasuhiko Sakamoto
    • H04B7/204H04J3/06H04B7/20
    • H04B7/2048
    • An acquisition system for the SDMA/TDMA satellite communication system is disclosed in which a synchronization signal receiving time slot and a plurality of data signal receiving time slots, for communication between predetermined groups of earth stations and between the earth stations of each group, are sequentially provided at the satellite based on timing signal in the satellite. An acquisition signal having a plurality of signal burst portions is transmitted from the earth station, with its transmit time slot being shifted in a first sweep mode until one part of the acquisition signal is received by said transmitting earth station. At that time the transmit time slot is shifted in a second sweep mode, whereby a control is made to obtain synchronization of the earth station with the satellite so that the plurality of burst portions in the acquisition signal may be properly communicated to the predetermined groups.Further, an acquisition control is shown to be effectively achieved in the case where the SN ratio of the received acquisition signal is extremely deteriorated or where it is necessary to prevent disturbing another earth station of the same group of earth stations which has already accessed the satellite.
    • 公开了一种用于SDMA / TDMA卫星通信系统的采集系统,其中同步信号接收时隙和多个数据信号接收时隙用于在预定的地球站组之间和每个组的地球站之间进行通信, 基于卫星中的定时信号在卫星上提供。 具有多个信号突发部分的获取信号从地球站发射,其发射时隙以第一扫描模式移位,直到所述发射地球站接收到采集信号的一部分。 此时,发送时隙在第二扫描模式中移位,由此进行控制以获得地球站与卫星的同步,使得采集信号中的多个突发部分可以适当地传送到预定的组。