公开(公告)号：JPS62294385A

公开(公告)日：1987-12-21

申请号：JP13799986

申请日：1986-06-13

Applicant: SONY CORP

Inventor： KATO YUKIHIRO ,  KOJIMA MASAAKI ,  HARADA MASAJI

IPC: H04N5/78 ,  H04N5/765 ,  H04N5/782

Abstract: PURPOSE:To attain the recording of a video signal without jitter even when uneven rotation in a drum is generated, by providing the oscillator of a signal which becomes the base of the reference signal of a camera, and a control signal for a drum motor, and controlling the oscillation phase of the oscillator based on the rotation detecting signal of the drum on which a video head is mounted. CONSTITUTION:The oscillation phase of an oscillator 1 is controlled based on a shared oscillator 1 which generates an oscillation signal which becomes the base of the reference signal of a camera 9, and the control signal for a drum motor 11, a rotation detector 12 which detects the rotation of the drum on which the video head is mounted, and the rotation detecting signal from the rotation detector 12. In this way, it is possible to record the video signal without the jitter on a tape, even when uneven rotation is generated in the drum.

公开(公告)号：JPS5975443A

公开(公告)日：1984-04-28

申请号：JP18650682

申请日：1982-10-23

Applicant: Sony Corp

Inventor： MIKAMI TSUTOMU ,  HARADA MASAJI ,  IKEDA TAMON

IPC: G11B15/10 ,  G11B15/20

CPC classification number: G11B15/103

Abstract: PURPOSE:To quickly perform program search, by providing a reproduce switch which feeds a tape for making reproduction, a quick traverse switch for feeding tape at a high speed, and a rewinding switch for rewinding tape at a high speed. CONSTITUTION:Various operation buttons 6-13 are arranged in an operation button arranging section 5. When the reproduce button 6 is pressed, normal reproduction is performed and, when the quick traverse button 7 is pressed, quick traversing namely, tape feed is performed at a speed which is about forty to one hundred times faster than the normal tape running speed at the time of reproduction. When the rewind button 8 is pressed, rewinding, namely, tape rewinding is performed at the same speed as that of the quick traverse. By using such a constitution, shifting from the quick traverse or rewinding mode to the searching mode can be made easily and quickly by simply operating the quick traverse switch or rewind switch. Therefore, the program search is made faster.

Abstract translation: 目的：为了快速执行程序搜索，通过提供用于再现的磁带的再现开关，用于高速馈送磁带的快速移动开关和用于快速重绕磁带的倒带开关。 构成：各操作按钮6-13被布置在操作按钮布置部分5中。当按下再现按钮6时，执行正常再现，并且当按下快速移动按钮7时，快速移动即进行带进给 速度比再现时的正常磁带运行速度快大约四十到一百倍。 当按下倒带按钮8时，以与快速移动相同的速度进行倒带，即，磁带倒带。 通过使用这种结构，通过简单地操作快速横动开关或倒带开关，可以容易且快速地从快速移动或倒带模式切换到搜索模式。 因此，程序搜索更快。

公开(公告)号：JPS63234440A

公开(公告)日：1988-09-29

申请号：JP6872087

申请日：1987-03-23

Applicant: SONY CORP

Inventor： NEMOTO SHOJI ,  HARADA MASAJI

IPC: G11B15/467

Abstract: PURPOSE:To set one servo lock point per two tracks and to shorten lock-in time by shifting the phase of a tracking error signal by 180 deg. to shift the servo lock point by an extent corresponding to two tracks. CONSTITUTION:The titled device is provided with a tracking circuit for which a tracking error signal SE is obtd. based on the reproduced signals of recording pilot signals of four frequencies f1-f4 cyclically recorded by repeating four tracks to scan tracks recorded with pilot signals of respectively corresponding frequencies and a means which detects that correspondence between heads and scanning tracks is shifted by approximately two-truck and the phase of the tracking error signal SE is shifted by 180 deg.. The scanning sequence of four heads are shifted by an extent corresponding to two heads in accordance with 180 deg. phase shift. Thus, one tracking servo lock point set per four tracks is set per two tracks with respect to time by 180 deg. phase shift of the tracking error signal and therefore, the lock-in time is shortened.

公开(公告)号：JP2565228B2

公开(公告)日：1996-12-18

申请号：JP6872087

申请日：1987-03-23

Applicant: SONY CORP

Inventor： NEMOTO SHOJI ,  HARADA MASAJI

IPC: G11B15/467

公开(公告)号：JPH08148124A

公开(公告)日：1996-06-07

申请号：JP31252794

申请日：1994-11-22

Applicant: SONY CORP

Inventor： HARADA MASAJI ,  MAEDA TATSUO

IPC: H01J61/54

Abstract: PURPOSE: To improve the reliability for inducing the discharge of a fluorescent tube and provide a stable discharge effect by providing proximity conductors for inducing the lighting of the fluorescent tube in darkness on the board of the lighting circuit of the cold-cathode fluorescent tube. CONSTITUTION: Terminals 60, 64 are connected respectively to the anode 40 and cathode 44 of a cold-cathode fluorescent tube 24 for a back-light and the terminals 60, 64 are connected respectively to lands 70, 74 of a printed board 26. Lands (proximity conductors) 80, 84 corresponding to the anode 40 and cathode 44 are formed on the printed board 26, and the discharge of the cold- cathode fluorescent tube 24 for a back-light is induced by the lands 80, 84. A stable discharge effect is obtained and the cost can be reduced.

公开(公告)号：JPH0550061B2

公开(公告)日：1993-07-28

申请号：JP18650682

申请日：1982-10-23

Applicant: SONY CORP

Inventor： MIKAMI TSUTOMU ,  HARADA MASAJI ,  IKEDA TAMON

IPC: G11B15/10 ,  G11B15/20

公开(公告)号：JPS60125185A

公开(公告)日：1985-07-04

申请号：JP23021283

申请日：1983-12-06

Applicant: SONY CORP

Inventor： SHINTANI KATSUICHI ,  HARADA MASAJI ,  FUJIKAWA MITSUYOSHI

IPC: H02P7/06

Abstract: PURPOSE:To simplify the construction by performing the frequency-to-voltage conversion of a frequency signal and the formation of a PWM signal by a microprocessor. CONSTITUTION:A microprocessor 20 detects and writes the period of a frequency signal FG from a frequency generator 8 in a RAM23, reads out PWM data in response to the period and PWM-drives a driver 5. In case of the mode except a servo, the PWM data written in advance in a ROM22 is read out to PWM-drive the driver 5. Thus, the number of parts can be reduced to simplify the construction.

公开(公告)号：JPS61120368A

公开(公告)日：1986-06-07

申请号：JP24097584

申请日：1984-11-15

Applicant: Sony Corp

Inventor： HARADA MASAJI ,  YAMAMOTO KIKUO

IPC: G11B27/02 ,  G11B15/467

Abstract: PURPOSE: To shorten the start-up time from the depression of a recording button to the start of actual recording by running a magnetic type at a normal running speed after a just track state is detected, and starting the recording of information with a rotary magnetic head.
CONSTITUTION: When a head 1A is put just on a recording track TA where a pilot signal f
3 is recorded and scans the track, a detection signal S
3 is obtained from a detecting circuit 12 and supplied to a system controller 5. system controller 5, therefore, controls a generator 4 and pilot signals f
4 , f
1 , f
2 ... are generated successively from following fields wherein the detection signal S
3 is obtained. Thus, the control is so performed as to maintain the continuity of the pilot signals Sp f
1 Wf
4 and then the system controller 5 controls a recording amplifiers 9, for example, at a point t
7 of time when the generator 4 generates the pilot singnal f
1 , thereby starting the recording on the magnetic tape 2 actually.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：通过在检测到正常轨迹状态之后以正常运行速度运行磁性类型，缩短从记录按钮按下到实际记录开始的启动时间，并用旋转磁铁开始记录信息 头。 构成：当头1A刚刚放置在记录导频信号f3的记录轨道TA上并扫描轨迹时，从检测电路12获得检测信号S3，并将其提供给系统控制器5.系统控制器5因此 控制发生器4，并且从获得检测信号S3的后续场连续生成导频信号f4，f1，f2 ...。 因此，执行控制以维持导频信号Sp f1-f4的连续性，然后系统控制器5例如在发电机4产生导频信号f1的时间点t7控制记录放大器9 从而实际上开始在磁带2上进行记录。