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1. 发明专利

JPS63291250A METHOD AND DEVICE FOR REGULATING TAPE 失效
公开(公告)号：JPS63291250A
公开(公告)日：1988-11-29
申请号：JP12558287
申请日：1987-05-22
申请人： FUJI PHOTO FILM CO LTD , JAPAN BROADCASTING CORP
发明人： KITAMOTO TATSUJI , YOKOYAMA KATSUYA , SEKIGUCHI TAKUJI
IPC分类号： G11B15/60 , G11B15/26 , G11B15/40
摘要： PURPOSE:To enable a stabilized traveling without forming any wrinkle and break even on a thin tape by transferring the tape in the width direction by a vibration transfer part utilizing a surface wave. CONSTITUTION:The surface wave progressing in one direction by ultrasonic vibration is generated on the surface of a vibration body and the tape position is regulated by moving a traveling tape 1 in the width direction by press-fitting to the surface of the tape 1 traveling on this surface so that the progressing direction of the surface wave may become in the direction having the component in the width direction of the tape 1. Namely, the tape guide 3 coming into contact with the surface of the tape 1 traveling in an arrow mark A direction is arranged and two sets of vibration transfer parts 2A, 2B are provided slanting to the tape traveling direction on the guide face of the tape guide 3. And one part of the transfer part 2A lets the tape 1 approach upwards and the other transfer part 2B downwards. Due to the vibration transfer parts 2A, 2B being arranged so that the transfer force may act in the width direction of the tape, no tape is broken to enable a stabilized tape traveling even in the case of a thin tape.

2. 发明专利

JPS63291249A TAPE DRIVING METHOD 失效
公开(公告)号：JPS63291249A
公开(公告)日：1988-11-29
申请号：JP12558387
申请日：1987-05-22
申请人： FUJI PHOTO FILM CO LTD , JAPAN BROADCASTING CORP
发明人： KITAMOTO TATSUJI , YOKOYAMA KATSUYA , SEKIGUCHI TAKUJI
IPC分类号： G11B15/40
摘要： PURPOSE:To easily remove the effect of a noise, etc. by the vibration without having the effect on a picture image signal by multiplying in integral number the vibrations corresponding to the horizontal scanning lines of a TV by the vibrations in a vibration transfer. CONSTITUTION:In order to transfer a tape by ultrasonic vibration a one direction progressing surface wave is generated on the surface of a vibration body by utilizing the principle of an ultrasonic motor and the tape is transferred by press-fitting it on the surface thereof and the number of vibrations at that time is taken as the integral number times the number of vibrations corresponding to the number of horizontal scanning lines of TV of the object of the recording and reproducing device of VTR, etc. equipped with the tape traveling system thereof. The picture plane of high picture quality having no flicker nor noise at all caused by the vibration for the vibration transfer can be obtd. by removing the noise with the filter having such number of vibrations.

3. 发明专利

JPS51149005A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPS51149005A
公开(公告)日：1976-12-21
申请号：JP7357075
申请日：1975-06-16
申请人： JAPAN BROADCASTING CORP , FUJI PHOTO FILM CO LTD
发明人： KUROKAWA YUKIOSA , FUJIYAMA MASAAKI , KITAMOTO TATSUJI , YOKOYAMA KATSUYA , MURAMATSU SANGO
IPC分类号： G11B5/70 , C09D5/23 , C09D7/12
摘要： PURPOSE:To provide a magnetic recording medium for recording a color television signal with improved effective value of chroma noise.

4. 发明专利

JPS63291248A METHOD AND DEVICE FOR DRIVING TAPE 失效
公开(公告)号：JPS63291248A
公开(公告)日：1988-11-29
申请号：JP12558187
申请日：1987-05-22
申请人： FUJI PHOTO FILM CO LTD , JAPAN BROADCASTING CORP
发明人： KITAMOTO TATSUJI , YOKOYAMA KATSUYA , SEKIGUCHI TAKUJI
IPC分类号： G11B15/40
摘要： PURPOSE:To prevent the generation of the twist and elongation of a thin tape by transferring a tape by touching to the tape with a face contact on the whole by the surface wave of a vibration body. CONSTITUTION:Tape transfer parts 1, 2, i.e., tape driving device is composed by arranging a set of piezoelectric elements 11, 12 on which the alternate voltage of different phase is impressed by alternate power sources Ea, Eb on a supporting body 10 by adjoining each other a lot. And a progressing wave (surface wave) is generated on the surface of the piezoelectric element groups 11, 12 and by bringing a tape 4 into pressurized contact with this surface it is transferred by giving to the tape 4 a vibration in the reverse direction to the progressing direction of the surface wave. The twist and meandering of the tape is thus prevented to enable a stable traveling even in the case of a thin tape by driving the tape with vibration.

5. 发明专利

JPH0588039B2 失效
公开(公告)号：JPH0588039B2
公开(公告)日：1993-12-20
申请号：JP4821586
申请日：1986-03-07
申请人： JAPAN BROADCASTING CORP
发明人： YOKOYAMA KATSUYA , KAMIJO KOJI
IPC分类号： H04N11/02 , H04N7/12 , H04N9/81 , H04N9/83

6. 发明专利

JPH0433173B2 失效
公开(公告)号：JPH0433173B2
公开(公告)日：1992-06-02
申请号：JP11011985
申请日：1985-05-24
申请人： JAPAN BROADCASTING CORP
发明人： YOKOYAMA KATSUYA , KAMIJO KOJI
IPC分类号： H04B1/66

7. 发明专利

JPH01112502A TAPE STRIP CARRIER RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH01112502A
公开(公告)日：1989-05-01
申请号：JP26937687
申请日：1987-10-27
申请人： JAPAN BROADCASTING CORP
发明人： YOKOYAMA KATSUYA , YAGUCHI KEIICHI , ISHIHARA TATSUYA , SEKIGUCHI TAKUJI
IPC分类号： G11B5/008 , G11B5/53 , G11B15/40 , G11B15/61
摘要： PURPOSE:To attain miniaturization of a tape running body and track head scanning of a very thin tape into a narrow track by assembling incorporatedly a tape strip carrying mechanism and a head scanning mechanism. CONSTITUTION:A magnetic tape 1 is in contact with cylindrical ultrasonic wave vibrator components 2A, 2B and carried by pressing members 9A, 9B clipping the tape in the broadwise direction. A head drum 4 is driven by a motor 5 being a hollow part of the ultrasonic wave vibrator component 2A, a head 6 in the outer circumference of a drum 4 is in contact with the tape 1, moved in the broadwise direction and the surface is scanned in interlocking with the carrying. The pressing members 9A, 9B use piezoelectric elements 10A, 10B to change the pressing force. The pressing force is changed in the broadwise direction of the tape 1 to vary minutely the moving speed at both sides in the broadwise direction of the tape thereby controlling the displacement of the tape in the broadwise direction to be a constant value. Through the constitution above, stable and accurate tape carrying is attained and the size of the tape running system is made small. The tape is loaded by using a solenoid 12 and an opening lever.

8. 发明专利

JPS62285258A RECORDING METHOD FOR MAGNETO-OPTICAL DISK 失效
公开(公告)号：JPS62285258A
公开(公告)日：1987-12-11
申请号：JP12758786
申请日：1986-06-02
申请人： JAPAN BROADCASTING CORP , ASAKA CO LTD , NIKON CORP
发明人： TOKUMARU HARUKI , NOMURA TATSUO , YOKOYAMA KATSUYA , ONISHI SHUNICHI , OKABE KOICHI , KIMOTO KIYOSHI
IPC分类号： G11B11/10 , G11B11/105
摘要： PURPOSE:To form a recording pit without secondary distortion on a disk by calculating a laser drive current at an optional radial position and ambient temperature based on a data of a laser drive current at the optimum recording obtained at plural measured positions on the magneto-optical disk. CONSTITUTION:The data for the optimum laser light control by the standard disk and the standard magneto-optical disk device is stored in a standard data ROM1. When a disk is recorded by the disk device at first, the optimum drive current is obtained by repeating the recording/reproduction while the drive current is being changed to obtain an output of optimum laser light at several position with different radio on the disk 12, and the ambient temperature and the disk radius position are stored in a computer 4. The control data is generated from the measurement data and the standard data and stored in a control data NVR16. The control data is used to estimate a required drive current at positions other than the measuring positions and the laser light control is attained depending on the radius position of the disk 12 and the ambient temperature.

9. 发明专利

JPS5428523A PHASE RESET SYSTEM FOR PILOT SIGNAL AND COLOR SUBCARRIER 失效
公开(公告)号：JPS5428523A
公开(公告)日：1979-03-03
申请号：JP9420377
申请日：1977-08-08
申请人： HITACHI ELECTRONICS , JAPAN BROADCASTING CORP
发明人： KAWAMURA TOSHIAKI , SUGIYAMA SHIGERU , FUJII EIJIYU , TAKESHITA KAZUYUKI , YOKOYAMA KATSUYA , NAKAGAWA SHIYOUZOU , KADOI RIYOUJI , NUMAZAWA JIYUNJI
IPC分类号： G11B20/02 , G11B5/027 , H04N9/896
摘要： PURPOSE:To ensure the steady phase reset for the pilot signal and the color subcarrier at the reproducing time in the magnetic record/reproduction system of the video signal, by securing the n/m pilot frequency in comparison with the color subcarrier frequency.

10. 发明专利

JPS5423424A UNEVEN COLOR CORRECTING SYSTEM USING PILOT SIGNAL 失效
公开(公告)号：JPS5423424A
公开(公告)日：1979-02-22
申请号：JP8842377
申请日：1977-07-25
申请人： HITACHI ELECTRONICS , JAPAN BROADCASTING CORP
发明人： KAWAMURA TOSHIAKI , SUGIYAMA SHIGERU , FUJII EIJIYU , TAKESHITA KAZUYUKI , YOKOYAMA KATSUYA , NAKAGAWA SHIYOUZOU , KADOI RIYOUJI , NUMAZAWA JIYUNJI
IPC分类号： G11B20/02 , G11B5/027 , H04N9/898
摘要： PURPOSE:To correct the time axial fluctuation of the reproduction video signal, the phase variation of the chroma signal plus the amplitude change by setting up 2fc-3fs-fp(fc:carrier;fs:burst;fp:pilot) among the lower side waves of the carrier frequency on the FM band so that they may not enter the pilot band.

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