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1. 发明专利

JPH0572668B2 失效
公开(公告)号：JPH0572668B2
公开(公告)日：1993-10-12
申请号：JP1163084
申请日：1984-01-25
申请人： SONY CORP
发明人： SUGIKI HIROSHI , ODAKA KENTARO , SATAKE TOMOJI , OOMORI TAKASHI , YAMADA MAKOTO
IPC分类号： G11B5/588 , G11B15/18 , G11B15/467 , G11B20/10 , G11B21/10 , H04N5/7826

2. 发明专利

JPH0570218B2 失效
公开(公告)号：JPH0570218B2
公开(公告)日：1993-10-04
申请号：JP17258684
申请日：1984-08-20
申请人： SONY CORP
发明人： ODAKA KENTARO , SUGIKI HIROSHI , OOMURA YOSHIMOTO , OOMORI TAKASHI , YAMADA MAKOTO
IPC分类号： G11B15/467

3. 发明专利

JPS6013345A RECORDING AND REPRODUCING METHOD OF DIGITAL SIGNAL 失效
公开(公告)号：JPS6013345A
公开(公告)日：1985-01-23
申请号：JP12117183
申请日：1983-07-04
申请人： SONY CORP
发明人： SUGIKI HIROSHI , KAWADA HIROTO , KAJIWARA TSUTOMU , YAMAME MAKOTO , TAKAHASHI TOSHIHIKO , OOMORI TAKASHI
IPC分类号： G11B15/467 , G11B15/18
摘要： PURPOSE:To control correctly tracking of a rotary head without being influenced by the mechanical secular change of a device, the temperature change or jittering at the time of double speed reproduction by forming a sampling pulse on the basis of the reproduced output of a pilot signal recorded in the center part of a track every scanning period of each head. CONSTITUTION:A signal taken out from a tape by the rotary heads 1A, 1B is alternately switched by a switching circuit 19 every half rotational period, only a pilot signal is extracted by a band pass filter 20 and its detected output is supplied to sample holding circuits 22, 23. The edge of each pilot signal located on the initial position is detected and a signal S7 is generated. An AND circuit 27 passes only the signal S7 inputted during the period of a window signal S8 and a sampling pulse generating circuit 29 supplies a pair of sampling pulses SP1, SP2 having a phase difference each other to the sample holding circuits 22, 23. An output difference between the sample holding circuits 22 and 23 is taken out from an output terminal 25 as a tracking control signal.

4. 发明专利

JPS5987643A RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS5987643A
公开(公告)日：1984-05-21
申请号：JP19717382
申请日：1982-11-10
申请人： SONY CORP
发明人： SUGIKI HIROSHI , OOMORI TAKASHI
IPC分类号： H04N5/7826 , G11B15/467
摘要： PURPOSE:To facilitate easy tracking control of a rotary head without using any exclusive fixed head by recording a pilot signal as well as an information signal nearly at the center part in the scanning direction of an oblique track and using the pilot signal in a reproducing mode. CONSTITUTION:Rotary heads 1A and 1B have different azimuth angles, and tracks 4A and 4B of these heads are recorded in a double write mode. The gap width between heads 1A and 1B is larger than the track pitch, and therefore the heads 1A and 1B perform scan over the adjacent tracks. The crosstalk effect of the adjacent tracks can be substantially neglected for the information signal having a high record bit rate owing to the azimuth loss since the adjacent tracks have different azimuth angles. While pilot signals P1-P4 are not attenuated so much by the azimuth loss since the frequencies f1-f4 of those pilot signals are set at a low level respectively and can be reproduced even through the adjacent tracks. Then the traverse speed of a tape 2 is varied in accordance with the difference of outputs of both tracks. Thus the control is possible for tracks.

5. 发明专利

JPH0680547B2 失效
公开(公告)号：JPH0680547B2
公开(公告)日：1994-10-12
申请号：JP15081692
申请日：1992-06-10
申请人： SONY CORP
发明人： OOMORI TAKASHI , SUGIKI HIROSHI
IPC分类号： G11B15/467 , G11B20/12

6. 发明专利

JPH0572669B2 失效
公开(公告)号：JPH0572669B2
公开(公告)日：1993-10-12
申请号：JP14741284
申请日：1984-07-16
申请人： SONY CORP
发明人： YAMADA MAKOTO , SUGIKI HIROSHI , OOMORI TAKASHI
IPC分类号： G11B20/10 , G11B15/467

7. 发明专利

JPH0466061B2 失效
公开(公告)号：JPH0466061B2
公开(公告)日：1992-10-22
申请号：JP12117183
申请日：1983-07-04
申请人： SONY CORP
发明人： SUGIKI HIROSHI , KAWADA HIROTO , KAJIWARA TSUTOMU , YAMADA MAKOTO , TAKAHASHI TOSHIHIKO , OOMORI TAKASHI
IPC分类号： G11B15/467 , G11B15/18

8. 发明专利

JPS59157810A Recording and reproducing method of pcm signal 失效
标题翻译： PCM信号的记录和再现方法
公开(公告)号：JPS59157810A
公开(公告)日：1984-09-07
申请号：JP3196283
申请日：1983-02-28
申请人： Sony Corp
发明人： OOMORI TAKASHI , SUGIKI HIROSHI
IPC分类号： G11B5/588 , G11B5/592 , G11B15/467
CPC分类号： G11B15/4677 , G11B5/588 , G11B5/5921
摘要： PURPOSE: To facilitate the easy detection of the pilot signal at the time of reproduction as well as the easy erasion of the pilot signal at the time of re- recording, by recording the pilot signal for tracking control and the PCM signal in different regions of the same track.
CONSTITUTION: A tracking pilot signal AT at a prescribed position equidistant from the end part in the lengthwise direction of each track 15H and independently from the recording region of a PCM signal AP which should be recorded at every second track 15H. At the time of reproduction, a recording track is scanned with a rotary head having a scanning width larger than the track width. Then the tracking control is possible for the rotary head by the reproduction outputs of the pilot signals of both adjacent tracks after scanning a track containing no pilot signal recorded at the prescribed position. Furthermore the frequency of the pilot signal can be increased in case the new information is recorded on the recorded information, and the pilot signal can be easily erased since it has a region different from the PCM signal.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了便于在再现时对导频信号的容易检测以及在重新记录时导频信号的容易擦除，通过将用于跟踪控制的导频信号和PCM信号记录在不同的区域相同的轨道。构成：跟踪导频信号AT在与每个磁道15H的长度方向上的端部部分等距离的规定位置处，并且独立于应该在每个第二磁道15H记录的PCM信号AP的记录区域。在再现时，用扫描宽度大于轨道宽度的旋转头扫描记录轨迹。然后，通过在扫描不包含在规定位置记录的导频信号的轨道之后的两个相邻轨道的导频信号的再现输出，可以进行旋转磁头的跟踪控制。此外，在将新信息记录在所记录的信息上的情况下，可以增加导频信号的频率，并且导频信号可以容易地被擦除，因为它具有与PCM信号不同的区域。

9. 发明专利

JPS60154346A RECORDING AND REPRODUCING METHOD OF DIGITAL SIGNAL 失效
公开(公告)号：JPS60154346A
公开(公告)日：1985-08-14
申请号：JP1162984
申请日：1984-01-25
申请人： SONY CORP
发明人： SUGIKI HIROSHI , ODAKA KENTAROU , SATAKE TOMOJI , OOMORI TAKASHI , YAMADA MAKOTO
IPC分类号： G11B5/588 , G11B15/467
摘要： PURPOSE:To attain compatibility between devices by recording a pilot signal independently of a digital signal, recording and reproducing a positioning signal having a start edge near the center and much azimuth loss and detecting the pilot signal from an adjacent track. CONSTITUTION:When a signal S22 is applied from a detection circuit 56 at the rising of a switching signal S1', an output signal S24 of an FF57 changes from a high level to a low level, a signal S24 is fed to a switch circuit 25 and the circuit 25 is changed over to a contact (b) side. As a result, a signal having a prescribed potential Vcc is led out of a terminal 58 to an output terminal 26. This signal is fed to a capstan servo system so as to attain tracking control. When the potential Vcc is positive, for example, the tape feeding is quickened via a capstan servo system, the head is moved to the next track corresponding to the own azimuth substantially so as to attain normal tracking operation and when the Vcc is zero, the feeding of the tape slows down and the head is retracted to the track during scanning at present substantially. Thus, the compatibility between devices is attained.

10. 发明专利

JPS60144A INFORMATION CONVERTING SYSTEM 失效
公开(公告)号：JPS60144A
公开(公告)日：1985-01-05
申请号：JP10732683
申请日：1983-06-15
申请人： SONY CORP
发明人： FUKUDA SHINICHI , NIIFUKU YOSHIHIDE , IIJIMA TATSUYA , MARUYAMA KOUHEI , OOMORI TAKASHI , ODAKA KENTAROU
IPC分类号： H03M7/00 , G11B20/14 , G11B20/16 , H04L25/49
摘要： PURPOSE:To perform the conversion of information with small length of a bounded bit by using a conversion logic, a latch circuit, a shift register, etc. to have a prescribed combination of DC storage in the bit of the signal obtained after conversion of information and to reduce both DC and low band components. CONSTITUTION:The information given from an input terminal 1 undergoes a prescribed bit shift through a shift register 2 with the pulse of a clock terminal 5. Then the 8-bit information is supplied to a conversion logic 3, and this logic 3 performs the 1:1 conversion and adds the 10-bit information to a shift register 4. The inversion frequency of the signal obtained after the conversion is detected. The outputs Q1-Q3 are applied to latch circuits 61-63, and outputs Q'1- Q'3 of the circuits 61-63 are supplied to the logic 3 in response to said inversion frequency and the inversion frequency stored previously in an RAM. Then the pulse timing is detected by a timing detecting circuit 7 and applied to the logic 3 and the register 4, and the signals obtained after conversion are stored in the 1st-3rd combinations. Thus the DC and low band components are reduced.

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