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1. 发明专利

JPS6267754A REPEAT DEVICE 失效
公开(公告)号：JPS6267754A
公开(公告)日：1987-03-27
申请号：JP20647585
申请日：1985-09-20
申请人： HITACHI LTD
发明人： SASAKI MOTOYOSHI
IPC分类号： G11B15/02 , G11B15/03
摘要： PURPOSE:To improve the operability when a repeat section is short especially by changing the mode rewinding a tape in response to the length of the repeat section. CONSTITUTION:In the rewinding mode at reproduction, a rewinding control signal 5 goes to a high level, an output of an AND circuit 8 goes to a high level, a repeat control signal 5 reaches a high level in this case and the output of an AND circuit 9 goes to a high level. When the reproduction time is short, the output of a counter 1 is smaller than a setting level of a comparator 2, its output goes to a low level and when the reproducing time is long and the counter input is larger than the setting level of the comparator 2, its output goes to a high level. When the reproducing time is short in AND circuits 10, 11 by the output of the comparator 2, a high level is outputted to an output of a rewinding reproduction mode signal 6 and the device is brought into the rewinding reproduction mode. When the reproducing time is long, a high level is outputted at the output of a rewinding mode signal 7 and the device is in the rewinding mode.

2. 发明专利

JPH0676204A ROTARY MAGNETIC HEAD DEVICE 失效
公开(公告)号：JPH0676204A
公开(公告)日：1994-03-18
申请号：JP22972092
申请日：1992-08-28
申请人： HITACHI LTD
发明人： OKADA SHINJI , OJI TOSHIO , SASAKI MOTOYOSHI , NEMOTO KIYOMI
IPC分类号： G11B5/02
摘要： PURPOSE:To suppress increase in a transmission loss by arranging other head corresponding to other coil adjacent to a coil in the rotary transmission corresponding to a head on a position where it is not in contact with a magnetic tape while reproducing the video head. CONSTITUTION:A pair of video heads 22a, 22b for a standard mode for recording and reproducing a video signal are arranged on positions opposing each other by 180 deg., and a pair of video heads 23a, 23b for special reproduction are arrnaged in the vicinity of the heads 22a, 22b. Further, a pair of narrow track video heads 24a, 24b for a long time mode are arranged on a position separated from the heads 24a, 24b by prescribed angles respectively, and a pair of heads 25a, 25b for recording and reproducing an FM audio are arranged on a position separated from the heads 24a, 24b by prescribed angles respectively, and a pair of flying erase heads 26a, 26b are arranged close to it. Even when lekage between the coils in the rotary transmission is present since a necessary regenerative signal is not affected by noise interference due to leakage, the number of short rings 30 inserted between the coils in the rotary transmission is minimized.

3. 发明专利

JPH0478282A MAGNETIC REPRODUCING DEVICE 失效
公开(公告)号：JPH0478282A
公开(公告)日：1992-03-12
申请号：JP18807290
申请日：1990-07-18
申请人： HITACHI LTD
发明人： MORO EIJI , OTSUKA SUSUMU , SASAKI MOTOYOSHI
IPC分类号： H04N5/922 , G11B20/06 , H04N5/92
摘要： PURPOSE:To simplify the circuit and to realize the low cost by employing a linear de-emphasis circuit correcting the emphasis characteristic properly for a reproduction circuit. CONSTITUTION:In the case of the S-VHS mode, a 2nd input terminal side is selected and a signal is fed to a post-stage limiter circuit 8. Then the signal is demodulated into a video signal at an FM demodulator 9 and further processed by a main de-emphasis circuit 10 and an LPF 11 and sent to a post- stage picture quality adjustment circuit 12, in which the processing such as contour correction is implemented and the resulting signal is outputted from a terminal 13.

4. 发明专利

JPS5954390A Magnetic recording and reproducing device with monitor 失效
标题翻译：带监视器的磁记录和再现装置
公开(公告)号：JPS5954390A
公开(公告)日：1984-03-29
申请号：JP16383482
申请日：1982-09-22
申请人： Hitachi Ltd
发明人： SASAKI MOTOYOSHI , SHIMADA OSAMU
IPC分类号： H04N5/93 , H04N5/91
CPC分类号： H04N5/91
摘要： PURPOSE:To prevent the increase of power consumption, by providing a white clip circuit operated only at the rapid traverse reproduction before a video circuit so as to suppress the effect of white noise. CONSTITUTION:A magnetic recording and reproducing device with monitor consists, e.g., of a magnetic reproducing head 2, preamplifier 3, demodulator 4, video amplifier 5, video amplifier circuit 6, deflection system 7, high voltage system 8, and a CPU and the like. The input stage of the video circuit 6 is provided with a white clip circuit 10 operated only at the rapid traverse reproduction (and rewinding reproduction) and clipping a high luminance signal at a prescribed value. When a reel motor driver circuit 1 is in the rapid traverse reproduction (or rewinding reproduction), a signal is transmitted from the driver circuit 1 so as to activate the clip circuit 10. Then, the video signal less than the clip value is fed to the video circuit 6, and the power consumption is decreased.
摘要翻译：目的：为了防止功耗的增加，通过提供仅在视频电路之间的快速遍历再现下操作的白夹子电路，以抑制白噪声的影响。构成：具有监视器的磁记录和再现装置包括例如磁再现头2，前置放大器3，解调器4，视频放大器5，视频放大器电路6，偏转系统7，高压系统8和CPU以及喜欢。视频电路6的输入级设置有仅在快速移动再现（和倒退重放）下操作并且以规定值削波高亮度信号的白夹子电路10。当卷轴电动机驱动器电路1处于快速移动再现（或倒退重放）时，从驱动器电路1发送信号以激活钳位电路10.然后，将小于钳位值的视频信号馈送到视频电路6和功耗降低。

5. 发明专利

JP2000069424A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JP2000069424A
公开(公告)日：2000-03-03
申请号：JP20879099
申请日：1999-07-23
申请人： HITACHI LTD
发明人： ONO SHOJI , SASAKI MOTOYOSHI , OTA HISASHI , AZUMA YOSHIYUKI , YAMAUCHI HIROTO , ABE KATSUHIKO , UEYAMA MAYUMI
IPC分类号： H04N5/76 , G11B15/087 , G11B27/28 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To allow recording contents of a tape to be identified on a screen and to display a caption. SOLUTION: The device is provided with a tape map memory that stores contents recorded on a tape and a tape map controller. An operation input means 14 is provided with a tape map button 141, a caption button 142, a reproduction button 143 and a stop button 145 or the like. Once a video-recording tape is loaded to the device and the tape map button 141 is depressed, a tape map menu 40 is displayed. The tape map menu 40 displays information such as contents of programs video-recorded in the tape and information as to whether or not any program has already been reproduced. When buttons l51, 152 are used on the menu and a cursor is set on a program desired to be viewed and the reproduction button 143 is depressed, a menu 60 is selected, characters C1 run on the menu 60 to indicate a state of tape retrieval. When a program search is finished, the reproduction mode is automatically selected.

6. 发明专利

JPH08205071A VIDEO RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH08205071A
公开(公告)日：1996-08-09
申请号：JP866795
申请日：1995-01-24
申请人： HITACHI LTD
发明人： SASAKI MOTOYOSHI
IPC分类号： H04N5/78 , G11B15/087 , G11B27/10
摘要： PURPOSE: To allow the device recording a data signal superimposingly on a video signal and extracting the data signal at reproduction for program search or the like to record only the data signal to a recorded video signal again for superimposition. CONSTITUTION: A reproduction signal from a recording and reproduction head 14 is given to a synchronizing signal separator circuit 6 via a switch circuit 23 as a reproduction video signal by a reproduction video signal processing circuit 9 and a signal generating circuit 7 generates a pulse signal with a prescribed width at a prescribed position based on the separated vertical synchronizing signal. The signal is given to an adder circuit 4 via an AND circuit 32 and the signal converted into a prescribed data code at a data conversion circuit 3 depending on input information is outputted from the adder circuit 4 synchronously with the pulse signal and fed to a recording reproduction head 14 via a recording video signal processing circuit 5. Switch circuits 24, 35 and 26 are controlled by logic circuits 33, 34.

7. 发明专利

JPH0832922A MAGNETIC RECORDING/REPRODUCING DEVICE 失效
公开(公告)号：JPH0832922A
公开(公告)日：1996-02-02
申请号：JP16184294
申请日：1994-07-14
申请人： HITACHI LTD
发明人： ONO SHOJI , SASAKI MOTOYOSHI , OTA HISASHI , AZUMA YOSHIYUKI , YAMAUCHI HIROTO , ABE KATSUHIKO , UEYAMA MAYUMI
IPC分类号： H04N5/76 , G11B15/02 , G11B15/087 , G11B27/00 , G11B27/10 , G11B27/11 , G11B27/13 , G11B27/28 , G11B27/30 , G11B27/34 , G11B27/36 , H04N5/445 , H04N5/765 , H04N5/91 , H04N5/92
摘要： PURPOSE:To provide a magnetic recording/reproducing device which can identify the tape recorded contents on a screen and also can display the captions. CONSTITUTION:This magnetic recording/reproducing device is provided with the tape map memory which stores the tape recorded contents and a tape map controller. An operation input means 14 includes a tape map button 141, a caption button 142, a reproduction button 143, a stop button 145, etc. When the video tape recorded by the magnetic recording/reproducing device is loaded and the button 141 is depressed, a tape map screen 40 is displayed to show the contents of the programs recorded on the tape, the recording time, the information showing whether the recorded programs are already reproduced, etc. A cursor is set at a desired program on the screen 40 by means of the buttons 151 and 152 and the button 143 is depressed. Thus the screen 40 is switched to a screen 60 and a character C1 runs to show a tape retrieving mode. Then a reproduction mode is automatically set after a program searching is finished.

8. 发明专利

JPS6378680A VIDEO OUTPUT DEVICE 失效
公开(公告)号：JPS6378680A
公开(公告)日：1988-04-08
申请号：JP22216986
申请日：1986-09-22
申请人： HITACHI LTD
发明人： SASAKI MOTOYOSHI
IPC分类号： H04N5/45
摘要： PURPOSE:To normally project a subvideo signal on a screen by creating a pseudo synchronizing signal and a pseudo video signal if there is no main video signal. CONSTITUTION:Without the main video signal, a synchronizing signal switching circuit 4 selects the pseudo synchronizing signal outputted from a synchronizing signal generator circuit 3 with the aid of a control signal C3, and decides the position of the subvideo signal according to the synchronizing signal. A video signal switching circuit 5 selects the pseudo video signal available through a synchronizing signal processing circuit 10, judging from the pseudo synchronizing signal, and inputs the selected one to a replacement circuit 9 through a clamp circuit 8. Thus synchronization is acquired with the aid of the pseudo synchronizing signal, and the subvideo signal can be outputted on the screen.

9. 发明专利

JPS60214694A Magnetic recorder 失效
标题翻译：磁记录仪
公开(公告)号：JPS60214694A
公开(公告)日：1985-10-26
申请号：JP7081984
申请日：1984-04-11
申请人： Hitachi Ltd
发明人： SASAKI MOTOYOSHI , SHIMADA OSAMU
IPC分类号： H04N9/82 , H04N9/83
CPC分类号： H04N9/83
摘要： PURPOSE:To perform a low frequency conversion with the same frequency as a local frequency used for a color system and to improve a frequency characteristic by separating luminance signal components at the high frequency side by means of a comb-shaped filter. CONSTITUTION:A video signal is inputted to a BPF1, HPF5 and an LPF9 of a magnetic recorder, and color video signal components passing through the BPF1 are converted into low-frequency by means of a convertor 4. A luminance signal system is separated into two systems by a comb-shaped filter 2 and a subconvertor 3. Furthermore, the low-frequency side luminance signal whose color components are removed by the LPF9 is frequency-modulated in a modulator 10. The video signal through the HPF5 is added to a comb-shaped filter 6, converted into low-frequency in a convertor 7 by the local frequency from the subconvertor 4 after its color components are removed, and finally overlapped with a low- frequency conversion color signal by a mixer 8. The signal obtained in such a way is overlapped with the low frequency luminance signal which is frequency- modulated by a mixer 11, and made into a recording signal.
摘要翻译：目的：以与用于彩色系统的本地频率相同的频率进行低频转换，并通过梳状滤波器分离高频侧的亮度信号分量来提高频率特性。构成：将视频信号输入到磁记录器的BPF1，HPF5和LPF9，并且通过BPF1的彩色视频信号分量通过转换器4转换为低频。亮度信号系统被分为两个通过梳状滤波器2和子转换器3进行系统的调制。此外，通过LPF9除去其颜色分量的低频侧亮度信号在调制器10中进行频率调制。通过HPF5的视频信号被加到梳子形滤波器6，在转换器7的颜色分量被去除之后，从转换器4的本地频率转换成低频，最后通过混频器8与低频转换颜色信号重叠。这样获得的信号一种方式与由混频器11进行频率调制的低频亮度信号重叠，并被制成记录信号。

10. 发明专利

JP2012104216A Digital recording and reproducing device 审中-公开
标题翻译：数字记录和复制设备
公开(公告)号：JP2012104216A
公开(公告)日：2012-05-31
申请号：JP2011249256
申请日：2011-11-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJITA KOJI , NISHIJIMA HIDEO , SASAKI MOTOYOSHI
IPC分类号： G11B20/10 , G11B20/00 , G11B27/031 , G11B27/10 , H04N5/76 , H04N5/781 , H04N5/782 , H04N5/783 , H04N5/85 , H04N5/907 , H04N5/91 , H04N5/93 , H04N9/804
CPC分类号： G11B20/00007 , G11B20/10527 , H04N5/76 , H04N5/781 , H04N5/782 , H04N5/783 , H04N5/85 , H04N5/907 , H04N9/8042
摘要： PROBLEM TO BE SOLVED: To provide a digital recording and reproducing device capable of performing normal reproduction and special reproduction of past recorded signals at the same time with recording when recording a video signal, an audio signal and an information signal, and to provide a digital recording and reproducing device which improves user-friendliness, such as cut reproduction and cut recording of a commercial portion.SOLUTION: A recording and reproducing device for recording and reproducing signals, such as a video signal and an audio signal is provided with a first recording medium and a second recording medium. When an input signal is recorded in the first recording medium, the input signal is once recorded in the second recording medium, and after a predetermined time, the input signal is transferred to the first recording medium to be recorded. Within the predetermined time, other signal processing, such as other recording and reproducing and discrimination of a commercial message portion. In addition, when the signal is reproduced from the first recording medium, other processing can be performed in the same manner within a predetermined time by once recording the input signal in the second recording medium, and outputting the input signal after the predetermined time.
摘要翻译：要解决的问题：提供一种能够在记录视频信号，音频信号和信息信号的同时同时执行过去记录信号的正常再现和特殊再现的数字记录和再现装置，并且提供一种提高用户友好性的数字记录和再现装置，例如商业部分的切割再现和剪切记录。解决方案：用于记录和再现诸如视频信号和音频信号的信号的记录和再现装置设置有第一记录介质和第二记录介质。当输入信号被记录在第一记录介质中时，输入信号被一次记录在第二记录介质中，并且在预定的时间之后，输入信号被传送到要被记录的第一记录介质。在预定时间内，可以进行其他信号处理，例如商业消息部分的其他记录和再现和区分。此外，当从第一记录介质再现信号时，通过在第二记录介质中记录输入信号，并且在预定时间之后输出输入信号，可以在预定时间内以相同的方式执行其他处理。版权所有（C）2012，JPO＆INPIT

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