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71. 发明专利

JPH04357773A MOTION VECTOR DETECTING DEVICE 失效
公开(公告)号：JPH04357773A
公开(公告)日：1992-12-10
申请号：JP13121491
申请日：1991-06-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUJI SHIGEKI , NISHIDA YOSHIHIRO
IPC分类号： H04N5/14
摘要： PURPOSE:To obtain the accurate and simple motion vector of an image detecting device adopting the representative point matching system with short operating time. CONSTITUTION:The picture is divided into plural blocks, and pixel Rij of the representative point is set for each block. A vertical correlation detection part 11 (or horizontal correlation detection part 10) detects the block with high vertical correlation (or horizontal correlation) in the picture. A representative point memory 4 stores the pixel data for the representative point of the video signal for one frame. A horizontal picture element latch circuit 6 (or vertical picture element latch circuit 7) performs latching in the timing of the pixel Pij (x,0) (or Pij (0,y))corresponding to the horizontal direction (or vertical direction) of each representative point Rij. A horizontal vector detection part 8 (or vertical vector detection part 9) obtains the motion vector in the horizontal direction (or vertical direction) of the picture from the inter-frame correlation between the block Rij with high vertical correlation (or horizontal correlation) selected by the vertical correlation detection part 11(or horizontal correlation detection part 10) and the Pij (x,0) (or Pij (0,y)) in the next frame.

72. 发明专利

JPH04310085A MOTION VECTOR DETECTOR 失效
公开(公告)号：JPH04310085A
公开(公告)日：1992-11-02
申请号：JP7513991
申请日：1991-04-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO , TSUJI SHIGEKI
IPC分类号： H04N19/50 , H04N11/04 , H04N19/423 , H04N19/426 , H04N19/51 , H04N19/527 , H04N19/537 , H04N19/85
摘要： PURPOSE:To predict a motion vector with high accuracy by obtaining two one-dimensional vectors orthogonal to each other based on an accumulation table corresponding to a picture element at a point giving an offset of a predicted horizontal motion vector in the vertical direction and on an accumulation table corresponding to a relevant picture element in the horizontal direction. CONSTITUTION:An input video signal 2 is A/D-converted by an A/D converter 1 and written in a representing point memory 3. The stored data is read with a delay of one frame and fed to vertical and horizontal absolute circuits 9, 10 via a latch circuit 4. The video digital signal is fed to the vertical absolute value circuit 9 via a circuit 6 latched in the timing offset by (m) in the horizontal direction with respect to the timing of the picture element of the representative point in the vertical direction and fed to the horizontal absolute value circuit 10 via the circuit 8 latched in the timing offset by (n) in the vertical direction similarly. A difference between the signal of one preceding frame outputted from the circuit 4 and a signal from the circuit 6 is calculated by the circuit 9 and a motion vector is obtained from an output of the circuit 10 calculated similarly.

73. 发明专利

JPH02262775A CHARACTER/PATTERN STORING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02262775A
公开(公告)日：1990-10-25
申请号：JP8503889
申请日：1989-04-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI , NISHIDA YOSHIHIRO
IPC分类号： H04N5/278 , H04N5/445
摘要： PURPOSE:To reproduce information as a character/pattern picture by providing a circuit to synthesize a signal, which is read from a memory, and an input signal during one cycle operation period of the memory, adding and storing new input information. CONSTITUTION:At the time of an add-on mode, an add-on signal is present and an enable signal (a) from a controller 11 is made H. For example, in the case of 8 bits, the former half of one cycle is read and the contents of a memory 6 in an address to be written are read and latched by a read data latch pulse E. In an OR circuit 17 of 8 bits, the contents are added with data, which are converted by a serial/parallel conversion pulse, and the latter half of one cycle is written to the memory 6. Thus, when the data are written to the memory in such a way, the input information of this time are added to information, which are stored up to the preceding time of operation, stored and go to the pattern/character information of the memory. Then, the information are finally added, superimposed with the other video input and go to a reproduced output.

74. 发明专利

JPH029514B2 失效
公开(公告)号：JPH029514B2
公开(公告)日：1990-03-02
申请号：JP3858383
申请日：1983-03-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO , SHIROSHITA KENJI
IPC分类号： H04N5/783 , G11B5/58 , G11B5/588

75. 发明专利

JPS63231786A TAPE TIME DISPLAY DEVICE 失效
公开(公告)号：JPS63231786A
公开(公告)日：1988-09-27
申请号：JP6624387
申请日：1987-03-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO
IPC分类号： G11B27/17 , G11B15/03 , G11B15/46 , G11B27/13 , G11B27/34
摘要： PURPOSE:To perform a time display with superior operability by calculating a tape time by a simple expression and displaying it even in any traveling state after a tape travels at a constant speed once. CONSTITUTION:A sensor 7 detects the rotation of a reel 3 and a rotation detection pulse generator 6 outputs (m) pulses in one turn of the reel 3. Here, R=nd+r, where (r) is the radius of a hub 4, (d) is the thickness of the tape 5, and R is the radius of the reel 3 when the tape 5 is wound (n) times; and 2piR=vfS, where (v) is the speed when the tape 5 travels at the constant speed and fS is the rotating cycle of the reel. Therefore, n=(v/2pid)fS-r/d, the number P of reel rest pulses is expressed by an equation I and the tape rest T obtained by converting the tape rest length L on the reel 3 into a constant-speed traveling time is expressed by an equation II.

76. 发明专利

JPS63123285A EDITING DEVICE 失效
公开(公告)号：JPS63123285A
公开(公告)日：1988-05-27
申请号：JP27067386
申请日：1986-11-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWABATA MASARU , NISHIDA YOSHIHIRO
IPC分类号： H04N5/7826 , G11B27/02 , G11B27/032 , H04N5/782
摘要： PURPOSE:To simultaneously observe visually the connecting condition of videos after editing by storing the video signal of at least one field of the starting point and the completing point of respective editing sections, and projecting the result to a monitor displaying surface based on the editing sequence. CONSTITUTION:By a program key, a desired editing program is called out. Next, the operating key of a reproducing side VTR 2 is operated, a desired editing starting point is found and an inset key is inputted. A control part stores the counting value of a VTR 2 at this time and the reproducing video signal for one field at this time is stored to a video signal memory 32. Further, when a desired editing completing point is found, an outset key is inputted, the then tape counting value is stored and the reproducing video signal for one field at this time is stored to the memory 32. After the above-mentioned operation is repeated and the editing is completed, respective videos stored into the memory 32 are projected on the picture divided monitor TV4 in sequence of editing.

77. 发明专利

JPS60237658A MODE DISCRIMINATOR FOR MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS60237658A
公开(公告)日：1985-11-26
申请号：JP9495284
申请日：1984-05-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO
IPC分类号： G11B15/087 , G11B15/467
摘要： PURPOSE:To discriminate automatically the tape speed during recording by reproducing plural pilot signals of different frequencies by a rotary magnetic head, extracting and detecting the signal components for the frequency difference from the frequency of a carrier signal and comparing the same with a set threshold value. CONSTITUTION:The pilot signals of the frequencies f1-f4 are superposed on a video signal and are recorded in the diagonal tracks on a magnetic tape by a rotary magnetic head 8 in synchronization with the head switch signal to be inputted to a terminal 1. A selection switch 6 is set to the play side and the signal component for the frequency difference between the detected pilot signals and the frequency of the carrier signal is obtd. from a mixer 11 and is detected with BPFs 12, 13 in the stage of reproducing. The detected output is passed through a subtractor 16 and is made into the tracking error signal from a terminal 19. Said output is also supplied via gate circuits 30, 31 to comparators 21, 22 by which the output is compared with the set threshold value. A relational discrimination circuit 24 can discriminate the tape speed from the speed generator signal from a capstan motor inputted to a terminal 25 and the outputs from the comparators 21, 22.

78. 发明专利

JPS605451A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS605451A
公开(公告)日：1985-01-12
申请号：JP11316883
申请日：1983-06-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO , KAWABATA MASARU
IPC分类号： H04N5/7826 , G11B5/588 , G11B15/087 , G11B15/46 , G11B15/467 , H04N5/782
摘要： PURPOSE:To discriminate the quality of a tracking state with simple constitution by applying the output obtained by giving the wave detection to the frequency differential component between a pilot signal and a carrier signal to a comparator having proper threshold value after sample holding said output. CONSTITUTION:It is decided that the satisfactory tracking is carried out for a period when the output of a wave detector 15 higher than the proper threshold voltage VT is obtained. While the tracking is decided as defective for a period when the output of the detector 15 is less than the value VT. In this case, a countermeasure like muting, etc. is carried out. Therefore the output of the detector 15 is applied to a smaple holding circuit 23, and the output level of the detector 15 is fixed at a time point when a sample pulse is produced. Then the output of the detector 15 is applied to a comparator 25 having the value VT after the transient response time is absorbed by an LPF24. Then the signal showing the quality of tracking is delivered through an output terminal 26 for servo clock detecting signal.

79. 发明专利

JPS59167825A Method for generating pattern for automatic tracking of video tape recorder 失效
标题翻译：用于生成自动跟踪视频录像机的图形的方法
公开(公告)号：JPS59167825A
公开(公告)日：1984-09-21
申请号：JP4333683
申请日：1983-03-14
申请人： Mitsubishi Electric Corp
发明人： SHIROSHITA KENJI , OOKAWA KAZUTAKA , NISHIDA YOSHIHIRO
IPC分类号： H04N5/783 , G11B5/588 , G11B5/592
CPC分类号： G11B5/5922
摘要： PURPOSE:To attain the generation of a head driving pattern with fidelity by preparing a tracking pattern and a transmission pattern as basic patterns in a pattern generator at the reproduction and combining an error pattern and the basic patterns so as to obtain a driving pattern. CONSTITUTION:When an output of an amplitude detector 14 is larger than an output of 14b at the 1/4 slow reproduction, it is meant that a video head 3a is biased toward a video track 2b on which a pilot signal f2 is recorded. Then, a moving head driving signal correcting the bias is generated at a pattern generating circuit 17 based on an output of a comparator 15 and a VTR operating mode signal 16 reprosenting the slow reproduction or the like. Further, the signal is smoothed by an LPF 18a smoothing it to a degree that an abnormal vibration is not produced to a piezoelectric element 4a and applied to the piezoelectric element 4a via a moving head driving amplifier 19a. As a result, the balance of the amount of crosstalk of a pilot signal from an adjacent track reproduced by the video head 3a is changed so as to form a servo loop, allowing to improve the tracking performance.
摘要翻译：目的：通过在再生中准备跟踪图案和作为图形发生器的基本图案的发送图案并组合误差图案和基本图案以获得驾驶模式，从而以保真度来产生头驱动模式。构成：当在1/4慢再现时，幅度检测器14的输出大于14b的输出时，意味着视频头3a被偏压到其上记录有导频信号f2的视频轨道2b。然后，基于比较器15的输出和代表慢速再现等的VTR操作模式信号16，在模式产生电路17产生校正偏置的移动头驱动信号。此外，信号由LPF 18a平滑化，达到对压电元件4a不产生异常振动并经由移动头驱动放大器19a施加到压电元件4a的程度。结果，改变了由视频头3a再现的相邻轨道的导频信号的串扰量的平衡，从而形成伺服环路，从而提高了跟踪性能。

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