公开(公告)号：JPH03140042A

公开(公告)日：1991-06-14

申请号：JP27719889

申请日：1989-10-26

Applicant: TOSHIBA CORP

Inventor： FUJII YASUYUKI ,  TANAKA SHUICHI

IPC: H04L27/36

Abstract: PURPOSE:To always minimize a carrier leakage without long time adjustment even when any temperature fluctuation takes place by cancelling a DC fluctuation component due to temperature included in positive and negative base band signals with common mode rejection action of a differential amplifier. CONSTITUTION:The circuit is provided with a D/A converter 25a having 2 bipolar output pairs and an n-bit digital signal is inputted to the D/A converter 25a to output positive and negative 2 analog base band signals in response to the input digital signal respectively. The positive and negative base band signals are inputted to an operational amplifier circuit 26a forming a differential amplifier, where they are subtracted together and a resulting output signal is inputted to one input of a couple of base band signal input terminals of a ring modulator 23a as an unbalanced input to modulate a carrier. Thus, carrier leakage is always minimized without adjustment for a long time even when any level of temperature fluctuation takes place.

公开(公告)号：JP2012195889A

公开(公告)日：2012-10-11

申请号：JP2011059922

申请日：2011-03-17

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： UJIIE TATSUNORI ,  FUJII YASUYUKI

IPC: H04B1/04 ,  H04J3/00

Abstract: PROBLEM TO BE SOLVED: To provide a digital wireless microwave transmission device with a reduced scale.SOLUTION: A digital wireless microwave transmission device comprises an interface module, an analog-to-digital conversion module, a multiplex module, a transfer module, a separation module, an FM modulation module, a digital modulation module, and a transmission module. The interface module captures a digital main signal and an analog auxiliary signal. The analog-to-digital conversion module digitizes the auxiliary signal. The multiplex module generates a multiplex signal by multiplexing the main signal and the auxiliary signal in a digital region. The transfer module transfers the multiplex signal. The separation module separates the main signal and the auxiliary signal from the multiplex signal transferred by the transfer module. The FM modulation module generates a modulation signal by performing frequency modulation (FM) on the separated main signal on the basis of the separated auxiliary signal in the digital region. The digital modulation module generates a transmission signal by performing digital modulation on the modulation signal. The transmission module wirelessly transmits the transmission signal.

Abstract translation: 要解决的问题：提供一种减小规模的数字无线微波传输装置。 数字无线微波传输设备包括接口模块，模数转换模块，复用模块，传输模块，分离模块，FM调制模块，数字调制模块和传输 模块。 接口模块捕获数字主信号和模拟辅助信号。 模数转换模块将辅助信号数字化。 复用模块通过在数字区域中复用主信号和辅助信号来产生多路复用信号。 传输模块传输多路复用信号。 分离模块将主信号和辅助信号与传输模块传输的多路复用信号分离。 FM调制模块通过基于数字区域中分离的辅助信号在分离的主信号上执行调频（FM）来产生调制信号。 数字调制模块通过对调制信号进行数字调制来生成发送信号。 传输模块无线传输传输信号。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012175573A

公开(公告)日：2012-09-10

申请号：JP2011037601

申请日：2011-02-23

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： MAEDA SHINICHI ,  FUJII YASUYUKI

IPC: H04B1/04 ,  H03F1/02 ,  H03F1/32 ,  H03F3/24

Abstract: PROBLEM TO BE SOLVED: To provide a compact, lower-power-consumption microwave transmission device with a distortion compensating function.SOLUTION: Transmission data from a transmission data modulation processing part 1 is input to a DPD processing part 20, and a distortion-preprocessed digital signal is converted by a DAC 2 into an analog signal, which is input to a power amplifier 8 through a VGA 9. A signal generated by detecting a signal output by the power amplifier 8 by amplifying the input signal is input to the VGA 9 as a signal for gain control signal, the VGA 9 performs automatic gain control so that the input detection signal has a constant value to perform gain distortion compensation, a microwave wireless device is made small in device scale, and thus the microwave transmission device is provided which has low power consumption.

Abstract translation: 要解决的问题：提供具有失真补偿功能的紧凑型，低功耗的微波传输装置。 解决方案：将来自发送数据调制处理部分1的发送数据输入到DPD处理部分20，并且将失真预处理的数字信号由DAC2转换成模拟信号，该模拟信号被输入到功率放大器8 通过VGA9检测由功率放大器8输出的信号而产生的信号作为增益控制信号的信号被输入到VGA9，VGA9进行自动增益控制，使得输入的检测信号 具有恒定的值来进行增益失真补偿，微波无线装置在设备尺寸上变小，因此提供具有低功耗的微波传输装置。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2005142934A

公开(公告)日：2005-06-02

申请号：JP2003378626

申请日：2003-11-07

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： FUJII YASUYUKI ,  NAKAYAMA SATORU

IPC: H04B1/74 ,  H04B1/04 ,  H04L29/14

Abstract: PROBLEM TO BE SOLVED: To provide a transmitter which is realized with a small circuit scale for taking signal synchronization of an active system and a standby system and has high frequency stability.
SOLUTION: In an operation using the active system, a switch 60 connects a branch circuit 41 and a filter 70, a modulation signal generated by a modulation part 11 is up-converted into a high frequency signal by a transmitting part 21, and the high frequency signal is transmitted via the branch circuit 41, the switch 60 and the filter 70. After that, when the need for operation by switching from the active system to the standby system arises, the switch 60 instantaneously connects a branch circuit 42 and the filter 70, the phase difference between the high frequency signal of the active system and the high frequency signal of the standby system obtained by a phase comparator 50 is given to an oscillator 123, the oscillator 123 generates a local signal based on the phase difference, and thus the oscillator 123 generates the local signal so that the phase difference of the high frequency signals of the active system and the standby system is eliminated.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于采用有源系统和备用系统的信号同步的小电路规模实现的发射机，并且具有高频稳定性。 解决方案：在使用有源系统的操作中，开关60连接分支电路41和滤波器70，由调制部分11产生的调制信号由发送部分21上变频为高频信号， 并且高频信号经由分支电路41，开关60和滤波器70发送。之后，当通过从有源系统切换到待机系统的操作需要时，开关60立即连接分支电路42 和滤波器70，通过相位比较器50将有源系统的高频信号与待机系统的高频信号之间的相位差提供给振荡器123，振荡器123基于相位产生本地信号 差异，因此振荡器123产生本地信号，从而消除了主动系统和备用系统的高频信号的相位差。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JPH0537574A

公开(公告)日：1993-02-12

申请号：JP19144891

申请日：1991-07-31

Applicant: TOSHIBA CORP

Inventor： FUJII YASUYUKI ,  TANAKA SHUICHI

IPC: H03M13/00 ,  H04L27/00 ,  H04L27/18

Abstract: PURPOSE:To allow the circuit to cope with a speed increase of a signal even when the speed is set to a multiple of (m) of the operation limit speed of an elastic storage element used for a speed conversion means. CONSTITUTION:A coder of a digital microwave radio equipment of the 16QAM modulation system employs the GF(2 ) (63,59,4) reed Solomon code. Then an input signal given through a sum logic circuit 32 is subject to parallel conversion into 6 series by serial parallel conversion circuits 331-334 and speed conversion circuits 341-344 employing elastic storage elements apply speed conversion to the signal subject to parallel conversion. The signal subject to error correction coding by error correction coding circuits 351-354 and the signal of m-series is subject to serial conversion to one series by parallel serial conversion circuits 371-374.

公开(公告)号：JP2011109340A

公开(公告)日：2011-06-02

申请号：JP2009261260

申请日：2009-11-16

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： FUJII YASUYUKI

IPC: H04L27/22 ,  H04B1/16

Abstract: PROBLEM TO BE SOLVED: To provide a demodulator capable of stably reproducing clocks. SOLUTION: A digital demodulating section 20 includes a multiplier 21 and a multiplier 22 each for converting a received signal into a baseband signal, and a carrier removing circuit 26 for removing carrier components from the baseband signal. A zero-crossing determination circuit 29 detects a zero-cross point of a signal to be inputted. An out-of-synchronization detecting circuit 31 detects a deviation of synchronization with the carrier in the baseband signal, and switches a signal inputted into the zero-crossing determination circuit 29 between a signal before removing the carrier component and a signal after removing the carrier components at the carrier removing circuit 26, depending on the deviation of synchronization detected by the out-of-synchronization detecting circuit 31. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供能够稳定再现时钟的解调器。 解决方案：数字解调部分20包括用于将接收信号转换为基带信号的乘法器21和乘法器22，以及用于从基带信号中去除载波分量的载波去除电路26。 过零判定电路29检测要输入的信号的零交叉点。 失步检测电路31检测与基带信号中的载波的同步偏差，并且在去除载波分量之前的信号和除去载波之后的信号之间切换输入到过零判定电路29的信号 取决于由失步检测电路31检测到的同步偏差，载波去除电路26的分量。（C）2011，JPO和INPIT

公开(公告)号：JP2006054813A

公开(公告)日：2006-02-23

申请号：JP2004236692

申请日：2004-08-16

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： NAKAYAMA SATORU ,  FUJII YASUYUKI

IPC: H04L7/00 ,  H04L29/14

Abstract: PROBLEM TO BE SOLVED: To realize a digital modulator and its modulation control method, in which the delay time difference between each IF signal of each transmission wave between an active transmitter and a reserved transmitter is readily measured and no delay time difference is generated in the transmission wave, even if the active transmitter is switched to the reserved transmitter. SOLUTION: Transmission waves from two transmitters 1A and 1B are measured using a phase comparator 4, the phases of the two transmission waves are aligned, when there is the delay time difference between each IF signal included in the transmission waves from the two transmitters 1A and 1B, pulse-like noise, generated in a phase difference error signal between each transmission wave measured by the phase comparator 4, is detected; and the delay time difference between each IF signal is minimized by adjusting a variably delay line 15 so that the pulse-like noise is minimized. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题为了实现数字调制器及其调制控制方法，其中容易地测量有源发射机和预留发射机之间的每个传输波的每个IF信号之间的延迟时间差，并且没有延迟时间差 即使有源发射机切换到保留的发射机，也可以在传输波中产生。 解决方案：使用相位比较器4测量来自两个发射器1A和1B的传输波，当两个传输波中包含的每个IF信号之间存在延迟时间差时，两个传输波的相位被对准 检测由相位比较器4测量的每个发送波之间的相位差误差信号产生的发射机1A和1B的脉冲状噪声; 并且通过调整可变延迟线15使得每个IF信号之间的延迟时间差被最小化，使得脉冲状噪声最小化。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004080834A

公开(公告)日：2004-03-11

申请号：JP2003402210

申请日：2003-12-01

Applicant: Tokyo Electronic Systems Kk ,  Toshiba Corp ,  東京エレクトロニックシステムズ株式会社 ,  株式会社東芝

Inventor： FUJII YASUYUKI ,  TANAKA SHUICHI ,  HASHIYA SATOSHI ,  KAYABA MIZUKI

IPC: H04L27/38 ,  H04L27/36

Abstract: PROBLEM TO BE SOLVED: To provide a radio communication unit whose quadrature demodulation method and transmission capacity can be changed readily, and to provide its quadrature amplitude demodulation circuit. SOLUTION: In a control unit 37, an inverter (INV) 371, an exclusive OR gate (EX-OR) 372, and a selectors (SELs) 374, 375 are provided. I channel and Q channel data in each 8 lines from analog/digital converters 29, 30 are sent to the inverter (INV) 371 and the exclusive OR gate (EX-OR) 372, respectively. In addition, according to a reception bit rate, by averaging a reversal of an error signal and sending it to amplifiers 27, 28, an offset control of the analog/digital converters 29, 30 is implemented. Also, by averaging an exclusive OR of an Most Significant Bit and the error signal and sending it to an automatic gain control amplifier 21, an AGC control of the analog/digital converters 29, 30 is implemented. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供其正交解调方法和传输容量可以容易地改变的无线电通信单元，并提供其正交幅度解调电路。 解决方案：在控制单元37中，提供反相器（INV）371，异或门（EX-OR）372和选择器（SEL）374,375。 来自模拟/数字转换器29,30的每8行中的I通道和Q通道数据分别被发送到反相器（INV）371和异或门（EX-OR）372。 此外，根据接收比特率，通过平均误差信号的反转并将其发送到放大器27,28，实现模拟/数字转换器29,30的偏移控制。 此外，通过对最高有效位和误差信号的异或进行平均并将其发送到自动增益控制放大器21，实现模拟/数字转换器29,30的AGC控制。 版权所有（C）2004，JPO

公开(公告)号：JPH11243433A

公开(公告)日：1999-09-07

申请号：JP35803798

申请日：1998-12-16

Applicant: TOSHIBA CORP ,  TOKYO ELECTRONIC SYSTEMS KK

Inventor： FUJII YASUYUKI ,  TANAKA SHUICHI ,  HASHIYA SATOSHI ,  KAYABA MIZUKI

IPC: H04L27/34

Abstract: PROBLEM TO BE SOLVED: To increase the transmission capacity without deteriorating a transmission quality and to miniaturize a circuit scale and improve a processing speed by enabling mapping and de-mapping processings without using a memory. SOLUTION: In a transmission side mapping circuit 342, Q-channel data D2, D4 and D6 from among digital data D1 to D7 of seven systems are converted into four bits from three bits by a bit number conversion circuit 111a. Then, a bit pattern corresponding to a conversion object of a signal point arrangement is detected from the transmission digital data D1 to D7 after bit number conversion by a conversion signal detection circuit 111b, this detected bit pattern is converted by a signal conversion circuit 111c, in accordance with a specified conversion rule, and is supplied for modulation.

公开(公告)号：JPH088875A

公开(公告)日：1996-01-12

申请号：JP13875594

申请日：1994-06-21

Applicant: TOSHIBA CORP

Inventor： TANAKA SHUICHI ,  FUJII YASUYUKI

IPC: H04L1/22 ,  H04B1/74 ,  H04J11/00

Abstract: PURPOSE:To compensate interference between cross polarization even while adopting a set standby system. CONSTITUTION:The devices 14-1, 14-2 and 24 for compensating the interference between the cross polatization respectively provided in active system receivers 1-1 and 1-2 and a standby system receiver 2 selectively fetch one of the demodulated output of respective demodulators provided in the two receivers different from the belonging receiver by interference wave selection switches 14b-1, 14b-2 and 24b, use it as interference wave signals and compensate the interference between the cross polarization of signals received in the attached receiver.