公开(公告)号：JP2008028554A

公开(公告)日：2008-02-07

申请号：JP2006197157

申请日：2006-07-19

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YOSHIHIRO TOSHITAKA

IPC: H04N7/08 ,  H04N5/44 ,  H04N7/081 ,  H04N7/173

Abstract: PROBLEM TO BE SOLVED: To provide a signal transmission/reception system or the like that minimizes temporary distortion of a displayed video image occurring during switching of video signal formats.
SOLUTION: Information regarding a format after switching and information regarding timing of switching the formats are inserted into a blanking section of the video signal to be transmitted.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供使视频信号格式的切换期间出现的显示视频图像的暂时失真最小化的信号发送/接收系统等。 解决方案：关于切换后的格式的信息和关于切换格式的定时的信息被插入要发送的视频信号的消​​隐部分。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2005354417A

公开(公告)日：2005-12-22

申请号：JP2004173040

申请日：2004-06-10

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YOSHIDA YONAKO ,  YOSHIHIRO TOSHITAKA

IPC: H04N5/7826 ,  G11B20/10 ,  G11B20/12 ,  H04N5/92

Abstract: PROBLEM TO BE SOLVED: To enable an image of -1 time (E dit-) to be outputted by phase locking so as to trace transmission reproduction special-purpose data arranged in a predetermined position according to a fixed rule in a device recording digital data to the track of a magnetic tape by a rotating head. SOLUTION: In the capstan servo calculator 71 of a reproduction system 20; a present position is specified, a phase error is obtained from a value of Block 0, a value of Block 0, and/or Block 0 reproduced intermittently from a track of a magnetic tape at -1-speed by a phase error calculation portion 82, a phase error obtained by the phase error calculation porion 82 is added to a speed error from a speed error calculator 81 by an adding portion 85, and phase servo is applied, thereby performing a control of a reproduction by tracing the search data by phase locking at -1-speed and by the rotating head. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过相位锁定能够输出-1次（E dit-）的图像，以便根据设备中的固定规则跟踪布置在预定位置的发送再现专用数据 通过旋转头将数字数据记录到磁带的轨道。 解决方案：在再现系统20的主导轴伺服计算器71中; 指定当前位置，通过相位误差计算部分82从块0的值，块0的值，和/或从0的磁带的磁道间断地以-1速度再现的块0获得相位误差 由相位误差计算部82获得的相位误差由加法部85从速度误差计算部81加到速度误差上，施加相位伺服，通过按阶段追踪搜索数据进行再生的控制 以-1速度和旋转头锁定。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005260786A

公开(公告)日：2005-09-22

申请号：JP2004072179

申请日：2004-03-15

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YOSHIHIRO TOSHITAKA

IPC: H04N5/92 ,  H04N5/7826 ,  H04N5/783 ,  H04N9/804 ,  H04N9/808 ,  H04N19/00 ,  H04N19/102 ,  H04N19/136 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  H04N19/577 ,  H04N19/70 ,  H04N7/24

CPC classification number: H04N5/783 ,  H04N5/78263 ,  H04N9/8042

Abstract: PROBLEM TO BE SOLVED: To prevent a search image from being non-colored when truncating low-order bits of a color signal in order to generate the search image.
SOLUTION: Since a search image is constituted by using only a DC component, an I picture decoder 71 extracts the DC component from luminance signal components and color difference signal components of macro blocks of an I picture. A color signal in image data from the I picture decoder 71 is supplied to a color signal level correction section 72, and a corrected color signal is supplied to a search data generation section 83. The search data generation section 73 generates search image data using a method determined in specifications. The color signal level correction section 72 corrects partial or all color signals within one frame so as to increase signal levels so that data of pixels of originally low levels become 0 data and a problem that the search image is not colored, is solved when reducing bit length of color difference data.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了防止搜索图像在截断彩色信号的低位时产生搜索图像时不着色。 解决方案：由于通过仅使用DC分量构成搜索图像，因此I图像解码器71从I图像的宏块的亮度信号分量和色差信号分量中提取DC分量。 来自I图像解码器71的图像数据中的颜色信号被提供给颜色信号电平校正部分72，并且将校正的颜色信号提供给搜索数据生成部分83.搜索数据生成部分73使用 方法在规格中确定。 彩色信号电平校正部分72校正一帧内的部分或全部颜色信号，以便增加信号电平，使得原始低电平的像素的数据变为0数据，并且在减少位时解决搜索图像不着色的问题 色差数据长度。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2002208262A

公开(公告)日：2002-07-26

申请号：JP2001001917

申请日：2001-01-09

Applicant: SONY CORP

Inventor： TAUCHI YOICHIRO ,  YOSHIHIRO TOSHITAKA

IPC: G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/34

Abstract: PROBLEM TO BE SOLVED: To realize an edit search without making intricate control. SOLUTION: The thumb nail images displayed in the state of Figure 13 (A) are changed to the state of Figure 13 (B) in correspondence to the rotating operation of a dial. When the dial is further rotationally operated in the same direction, the image data for 3GOP components recorded in the farthest position in a delay direction is erased from the currently displayed thumb nail images. The magnetic tape is sent to positive direction. The feed direction of a magnetic tape is inverted after parting by >=4GOP than the thumb nail images to be acquired and phase locking is performed by acceleration up to an 8-times speed, following which the thumb nail images of 3GOP are acquired. The tape feed speed is thereafter decelerated and the tape is so fed that the position of a rotary head corresponds to the currently displayed thumb nail images as shown in Figure 13 (C).

公开(公告)号：JP2001275077A

公开(公告)日：2001-10-05

申请号：JP2000085484

申请日：2000-03-27

Applicant: SONY CORP

Inventor： TAUCHI YOICHIRO ,  HIMENO TAKUJI ,  YOSHIHIRO TOSHITAKA ,  ENOMOTO TAKURO

IPC: H04N5/7826 ,  G11B20/12 ,  G11B27/30 ,  H04N5/782 ,  H04N5/92 ,  H04N9/79 ,  H04N9/804 ,  H04N9/808 ,  H04N9/82

Abstract: PROBLEM TO BE SOLVED: To record data of an HD video signal on a magnetic tape. SOLUTION: A preamble is formed at the head of each track formed obliquely to the length of the magnetic tape and a main sector and a subcode sector are then continuously formed without forming any gap between them. A postamble is formed right after the subcode sector. In the main sector, data, sound data, search data, AUX data, etc., of the HD video signal are recorded.

公开(公告)号：JP2000115699A

公开(公告)日：2000-04-21

申请号：JP28289998

申请日：1998-10-05

Applicant: SONY CORP

Inventor： YOSHIHIRO TOSHITAKA

IPC: H04N5/92

Abstract: PROBLEM TO BE SOLVED: To provide a progressive mode recording system of a digital VTR, capable of applying a progressive scanning system by nearly partially changing a part of a present digital VTR. SOLUTION: Two adjacent frames 1 and 2 of the input video signals of the progressive scanning system are respectively decomposed into first fields 1A and 2A and second fields 1B and 2B, the respectively decomposed two sets of the first fields, and the second fields are replaced with each other and new two frames are generated. Then, the new two frames are respectively compressed, difference between one of new frame compression data and the other new frame compression data generated by performing compression is obtained, one of the new frame compression data is recorded in the video recording area of a video recording means 3 and the new frame compression data, for which the difference is obtained, are recorded in a recording area other than the video recording area of the video recording means.

公开(公告)号：JPH11355712A

公开(公告)日：1999-12-24

申请号：JP16260098

申请日：1998-06-10

Applicant: SONY CORP

Inventor： YOSHIHIRO TOSHITAKA

IPC: H04N5/91 ,  G11B20/10

Abstract: PROBLEM TO BE SOLVED: To prevent malfunction of the circuit of a digital VTR by generating a stable internal synchronization reference signal with less fluctuation with a comparatively simple method where a prescribed delay is given to the frequency response of the internal synchronization reference signal with respect to an input frame synchronizing signal. SOLUTION: The VTR is provided with a synchronization control section 1 that monitors a frequency of a frame synchronizing signal of an input video signal and generates an internal synchronizing signal resulting from keeping frequency fluctuation of a frequency of the frame synchronizing signal within a prescribed range based on the result of monitoring so as to input the internal synchronizing signal to a digital signal processing circuit 2. An up and down- counter is used to provide a hysteresis characteristic to a response to generation of a synchronizing signal with respect to a monitoring result of the frequency of the frame synchronizing signal.

公开(公告)号：JPH07154749A

公开(公告)日：1995-06-16

申请号：JP29517793

申请日：1993-11-25

Applicant: SONY CORP

Inventor： YOSHIHIRO TOSHITAKA ,  NAGUMO MASAHIKO

IPC: H04N5/783 ,  G11B20/10 ,  H04N5/92 ,  H04N5/937

Abstract: PURPOSE:To improve picture quality by improving the updating rate of a second frame memory at the time of high-speed reproduction. CONSTITUTION:At the time of high-speed reproduction, a capstan control part 14 controls the rotation of a capstan motor 17 so as to increase the number of video data newly written in a second frame memory 10. When an address not to be updated at all exists over 20 frames on this second frame memory 10, the rotation of the capstan motor 17 are controlled so as to decelerate the transport speed of a video tape 1 to the timing for reproducing video data written in this address.

公开(公告)号：JPH05122720A

公开(公告)日：1993-05-18

申请号：JP30414991

申请日：1991-10-23

Applicant: SONY CORP

Inventor： YOSHIHIRO TOSHITAKA

IPC: H04N9/79 ,  H04N9/80

Abstract: PURPOSE:To prevent deterioration in the vertical resolution of a reproduced still picture by recording alternately two color difference signals for each prescribed frame and writing the reproduced data of the color difference signals to frame memories for each color difference signal and outputting the result. CONSTITUTION:A blue color difference signal PB and a red color difference signal PR in a video signal at the recording are converted into digital signals by A/D converters 13B, 13R. Switch circuits 15B, 15R, 22 are switched synchronously with a switching signal MS from a terminal 16 and its output signal is fed to a TDM encoder 14. When a still picture is selected, the color difference signal from the circuit 22 is shared alternately to A, B channels for each horizontal period and recorded on a tape while being subject to time division multiplex onto the luminance signal. At the reproduction, the reproduced data of the color difference signals are written in the two frame memories and each color difference signal to be written is outputted.

公开(公告)号：JP2006031861A

公开(公告)日：2006-02-02

申请号：JP2004211001

申请日：2004-07-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： WATANABE TAKAHARU ,  YOSHIHIRO TOSHITAKA

IPC: G11B20/10 ,  G11B5/09 ,  G11B20/12 ,  H04N5/7826

Abstract: PROBLEM TO BE SOLVED: To provide a video tape recorder and its control method, applied to a vide tape recorder based on, e.g., an HDV format, and capable of correctly determining a format even in the case of rewinding video reproduction at unmultiplied speed or the like using search data recorded in a magnetic tape. SOLUTION: The traveling of a magnetic tape 4 is controlled so that during rewinding video reproduction, magnetic heads 15A and 15B scan the magnetic tape 4, 2(M±n) (n is integer) times by 2M pieces of blocks constituting the recording cycle of search data, and scan an area recording video data for searching. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种应用于基于例如HDV格式的视频磁带录像机的磁带录像机及其控制方法，并且即使在倒转视频再现的情况下也能够正确地确定格式 使用记录在磁带中的搜索数据进行非乘法速度等。 控制磁带4的移动，使得在倒带视频再现期间，磁头15A和15B通过2M个块构成扫描磁带4,2（M±n）（n为整数） 搜索数据的记录周期，以及扫描记录用于搜索的视频数据的区域。 版权所有（C）2006，JPO＆NCIPI