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1.发明专利
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
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
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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.
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公开(公告)号：JPH11215013A
公开(公告)日：1999-08-06
申请号：JP1116198
申请日：1998-01-23
Applicant: TOSHIBA CORP
Inventor： DOI TOSHINORI , TANAKA SHUICHI
Abstract: PROBLEM TO BE SOLVED: To provide a digital microwave ratio communication device capable of carrying on communication, without increasing the standby systems even if both working and standby systems respectively have partial failures generated. SOLUTION: In this radio communication device, a radio transmission unit 50 is shared by a transmission digital signal processing unit 10 of an synchronous digital hierarchy(SDH) system and a transmission digital processing unit 20 of a asynchronous digital hierarchy (PDH) system. For this sharing purpose, a transmission/reception changeover switch 521 is prepared between each of units 10 and 20 and the unit 50. As a result, the connection is secured with the switching of a matrix form between each circuit of both units 10 and 20 and each circuit of the unit 50. Furthermore, the speed conversion functions are given to multiplexers 511 and 512 of the PDH system for the sharing. Thereby, the same speed is secured between the digital multiplex signals of the PDH system and those of the SDH system.
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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
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.
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公开(公告)号：JPH0529961A
公开(公告)日：1993-02-05
申请号：JP18240091
申请日：1991-07-23
Applicant: TOSHIBA CORP
Inventor： FUJII YASUYUKI , TANAKA SHUICHI
Abstract: PURPOSE:To prevent malfunction by selecting any input signal corresponding to each of plural select data setting means respectively when plural means with '1' set thereto are in existence among the plural select data setting means so as to selectively output one of the input signals regardless of the setting state of each switch. CONSTITUTION:Only when a switch SW1 is turned on, a select data 011 is inputted to a selector SEL, the selector selects an input terminal D3 to select a signal S2. When only a switch SW2 is closed, the selector receives a select data 101 to select an input terminal D5 and a signal S2. Only when the switches SW1, SW2 are closed, the selector receives a data 001 to select the input terminal D1 and the signal S1 given to the input terminal D1. Thus, a signal corresponding to a closed switch is selected in this way. When plural switches are closed, a signal with high priority is selected.
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Patent Agency Ranking
公开(公告)号：JPH04351774A
公开(公告)日：1992-12-07
申请号：JP12393591
申请日：1991-05-28
Applicant: TOSHIBA CORP
Inventor： TANAKA SHUICHI
Abstract: PURPOSE:To execute retrieval without a problem by automatically correcting a table of contents(TOC) to correspond to recording contents of a recording medium at the time of reading out the next TOC even in case of a power failure during editing work. CONSTITUTION:Upon occurrence of a power failure during editing work for additionally recording a picture data, the occurrence of the power failure is recorded on a tape 35 to leave a TOC renewing flag (F) of the tape 35 unchanged as 0. Then, when the F is detected as 0 at the time of reproducing the tape 35, the last picture in TOC data recorded on the tape 35 is retrieved, and a picture data recorded after this last picture is reproduced. At this time, program numbers and their picture numbers to be obtained until a nonrecorded part is detected are recorded additionally to the recorded TOC data of a TOC memory 29. By this method, even in case of the power failure during editing work, the TOC is automatically corrected to correspond to the recording contents of the tape 35 at the time of reading the next TOC data, and hence the retrieval is feasible without any problems.
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公开(公告)号：JPH04200038A
公开(公告)日：1992-07-21
申请号：JP33307890
申请日：1990-11-29
Applicant: TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
Inventor： TANAKA SHUICHI , KASUYA KISABURO , OYA YASUNORI , HOSHINO HIROBUMI
Abstract: PURPOSE:To receive a transmission data correctly without out of synchronism even when a momentary interruption of a transmission signal sent from a sender side or a momentary phase change takes place at the changeover from an active system into a standby system and to reproduce the data by adopting a delay detection system for a demodulation circuit of a standby system reception circuit section. CONSTITUTION:A demodulation circuit 46 adopting the delay detection system is provided to a standby system reception circuit section 40b of a receiver RX and the 2nd demodulation circuit 46 is used at the changeover from an active system reception circuit section 40a to the standby system reception circuit section 40b to demodulate a transmission signal. Thus, even when a momentary interruption of a transmission signal or a momentary phase change takes place due to the changeover of a changeover switch 3 of a transmitter TX, no bit error in the transmission signal takes place or should a bit error take place, it is kept within a range of error correction capacity of an error correction circuit 44a, then the transmission signal is continuously demodulated without any hindrance.
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公开(公告)号：JPH03113886A
公开(公告)日：1991-05-15
申请号：JP25065189
申请日：1989-09-28
Applicant: TOSHIBA CORP
Inventor： TANAKA SHUICHI
IPC: G11B27/19 , G11B15/087
Abstract: PURPOSE:To retrieve a boundary position between a recorded picture area and unrecorded picture are at a high speed and at a low cost by transporting a tape at a high speed, detecting S-IDs recorded at prescribed intervals at the time of recording a picture data and detecting the time when the above detecting interval becomes longer than a prescribed time. CONSTITUTION:A recording signal outputted from a signal recording/reproducing part 24 becomes a PCM main data, and S-ID flags are generated from a header discriminating signal (S-ID) generating part 26 for a given period of time from the lead of a page, and is supplied together with the PCM main data to a head 40, so that the S-IDs for a given number of tracks are added to the lead of each page. Then, at the time of fast forwarding the recording medium (tape) 39, the S-IDs are reproduced and detected by the head 40, the signal recording/ reproducing part 24 and an S-ID detecting part 27, and the boundary position between the recorded area and the unrecorded area is decided upon the time when a time interval for detecting the S-ID becomes more than the prescribed value. By this method, the boundary position between the recorded picture area and the unrecorded picture area can be retrieved at low cost and high speed.
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公开(公告)号：JPH02257723A
公开(公告)日：1990-10-18
申请号：JP7960489
申请日：1989-03-30
Applicant: TOSHIBA CORP
Inventor： INOMATA TAKUMI , WATANABE TAICHI , TANAKA SHUICHI
IPC: H04B7/08
Abstract: PURPOSE:To simplify a radio system by using a holding circuit for a timewise output as a reset circuit in space diversity(SD) control and applying the interruption of the SD system and reset control with one control line or a switch. CONSTITUTION:When a reset signal is given to the reset circuit of an SD control panel 21, a timewise holding circuit 20 releasing forcedly the generation of an interruption signal 15 and restoring the circuit for the prescribed time is provided, and the SD operation is succeedingly restored in the absence of a fault by releasing the interruption signal 15 for the output period of the holding circuit 20. Thus, the interruption of a sub reception system and the automatic reset operation for the restoration are implemented with one switch 18 or a control line. Thus, a radio communication equipment having a reset circuit controlling the required SD system is obtained with a simple constitution.
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公开(公告)号：JPS6488979A
公开(公告)日：1989-04-03
申请号：JP24401687
申请日：1987-09-30
Applicant: TOSHIBA CORP
Inventor： TANAKA SHUICHI , KAKIZAKI MIKIO
IPC: G11B27/02 , G11B27/034
Abstract: PURPOSE:To lighten the burden of an user at the time of edit by setting a reproducing time limit, selecting the block of the longest time length from reproduced data, eliminating track cut on the way of the block and reducing a blank part. CONSTITUTION:When the time limit and the plural blocks of an object to be edited are specified by a key 11 and set to a memory 22 and next the instruction of an key for edit is sent to a block selection control part 27, data in the memory 22 is sent to a block length calculation part 28 and the program time of each block is set to the memory 22. Besides, the size of it is compared 29 and the program time of the block of a maximum value is selected 30 and set to the memory 22. This longest time is made to be valid so far as it is not over a rest time, subtracted from the rest time and set to the memory 22 as an updated value. Then, by receiving a reproduction instruction from the key 11, a sequence control part 13 makes a CD reproducing part 14 to execute searching/reproducing operation based on the data in the memory 22.
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