公开(公告)号：JP2007033649A

公开(公告)日：2007-02-08

申请号：JP2005214496

申请日：2005-07-25

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YANAGIMOTO KAORU

IPC: G09C1/00

Abstract: PROBLEM TO BE SOLVED: To encrypt and decrypt a stream as content at high speed.
SOLUTION: An encoder of a content transmitter encrypts the stream (content) in parallel in prescribed packet units. The encoder comprises an input data storage section (FIFO) and an output data storage section (FIFO). Between the input data storage section and the output data storage section, a plurality of encryption sections, and a group of input side data storage sections (FIFO) and a group of output side data storage sections (FIFO) corresponding to the plurality of encryption sections are prepared. The encoder performs encryption processing at high speed by successively processing data in reference block units. Similarly, an decoder of a content receiver decrypts received encryption data in packet units in parallel.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：以高速度将内容加密和解密为内容。 解决方案：内容发射机的编码器以规定的分组单元并行地加密流（内容）。 编码器包括输入数据存储部分（FIFO）和输出数据存储部分（FIFO）。 在输入数据存储部分和输出数据存储部分之间，多个加密部分和一组输入侧数据存储部分（FIFO）以及与多个加密部分对应的一组输出侧数据存储部分（FIFO） 准备好了 编码器通过以参考块为单位连续处理数据，高速进行加密处理。 类似地，内容接收器的解码器并行地以分组单位解密所接收的加密数据。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006211227A

公开(公告)日：2006-08-10

申请号：JP2005019794

申请日：2005-01-27

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YANAGIMOTO KAORU

IPC: H04L12/70 ,  H04N7/167 ,  H04N7/173 ,  H04N21/23 ,  H04N21/6408

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for data transmission in which a load is reduced at the time of transmitting an identical content to a plurality of data reception apparatuses.
SOLUTION: When transmitting the identical content to the plurality of data reception apparatuses, and when multicast transmission or the like is not permitted, an accumulated value obtained when generating a check sum in regard to a packet to be transmitted to a first reception apparatus is retained in a register of a CPU 15. Then, when a check sum is to be generated to the second reception apparatus or thereafter, an accumulated value to a second packet is calculated, based on the retained accumulated value and a difference from the destination address to the first reception apparatus, so as to generate the second check sum.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题：提供一种用于数据传输的装置和方法，其中在将相同内容发送到多个数据接收装置时减少了负载。 解决方案：当向多个数据接收装置发送相同的内容，并且当不允许多播传输等时，生成关于要发送到第一接收的分组的校验和的获得的累加值 装置被保留在CPU15的寄存器中。然后，当要向第二接收装置产生校验和时，或者之后，基于保留的累加值和与第 目的地地址到第一接收装置，以产生第二校验和。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006178535A

公开(公告)日：2006-07-06

申请号：JP2004368318

申请日：2004-12-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YANAGIMOTO KAORU

IPC: G06F21/24 ,  G06F3/06 ,  G09C1/00 ,  G11B20/10 ,  H04L9/10

Abstract: PROBLEM TO BE SOLVED: To store encryption data such as contents with copyrights in a data recording device connected to a network. SOLUTION: Encryption data transmitted through a network 100 are stored in the first memory region of an RAM 16, and a DCTP/IP encryption/decryption circuit 20 reads the first encryption data stored in the first memory region, and decrypts the first encryption, and implements second encryption for recording the data in a recording means(data storage) 18 such as a hard disk, and transfers the second encryption data to the second memory region of the RAM 16. The encryption data stored in the second memory region of the RAM 16 are recorded in the recording means 18. Also, the encryption data recorded in the recording means 18 are stored in the first memory region of the RAM 16, and the DCTP/IP encryption/decryption circuit 20 decrypts the encryption, and implements DCTP/IP encryption, and stores the data in the second memory region of the RAM 16, and outputs the data to the network 100. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：将诸如具有版权的内容的加密数据存储在连接到网络的数据记录装置中。 解决方案：通过网络100发送的加密数据存储在RAM16的第一存储器区域中，并且DCTP / IP加密/解密电路20读取存储在第一存储器区域中的第一加密数据，并将第一 并且实现第二加密，用于将数据记录在诸如硬盘的记录装置（数据存储）18中，并将第二加密数据传送到RAM16的第二存储器区域。存储在第二存储器区域中的加密数据 另外，记录在记录装置18中的加密数据被存储在RAM16的第一存储区域中，并且DCTP / IP加密/解密电路20解密加密，并且 实现DCTP / IP加密，并将数据存储在RAM16的第二存储器区域中，并将数据输出到网络100.版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004266504A

公开(公告)日：2004-09-24

申请号：JP2003053796

申请日：2003-02-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YANAGIMOTO KAORU ,  MASATO TAKESHI ,  OGIWARA MASARU ,  TAKAHASHI KATSUYA

IPC: H04L29/08 ,  H04L29/06

CPC classification number: H04L65/608 ,  H04L1/1835 ,  H04L1/1848 ,  H04L1/1874 ,  H04L29/06 ,  H04L65/80 ,  H04L69/16 ,  H04L69/164 ,  H04L69/22 ,  H04L69/40

Abstract: PROBLEM TO BE SOLVED: To enable data that could not be received at a reception side by some sort of causes to be acquired from a transmission side by a retransmission request from the reception side. SOLUTION: In communication using UDP as a transport layer, a signal is transferred to which an RTP header is added. A receiver refers to a sequence number in the received RTP header for confirming the continuity of the number. When data containing a continuous sequence number are not received, the data are determined to be missing and a request for resending the data of the sequence number determined to be missing is sent to a transmitter. Corresponding to the request, the receiver acquires the missing data by receiving the data resent by the transmitter. The system can be applied to the transmitter for sending data and the receiver for receiving the data and improves reliability in communication. COPYRIGHT: (C)2004,JPO&NCIPI

Abstract translation: 要解决的问题：通过来自接收侧的重发请求，通过某种原因从发送侧获取在接收侧无法接收的数据。 解决方案：在使用UDP作为传输层的通信中，传送一个添加了RTP头的信号。 接收机是指接收的RTP报头中的序列号，用于确认数字的连续性。 当没有接收到包含连续序列号的数据时，数据被确定为丢失，并且将重新发送确定为丢失的序列号的数据的请求发送到发射机。 对应于该请求，接收机通过接收发射机重发的数据来获取丢失的数据。 该系统可应用于发送器发送数据，接收器可用于接收数据，提高通信的可靠性。 版权所有（C）2004，JPO＆NCIPI

公开(公告)号：JP2000149271A

公开(公告)日：2000-05-30

申请号：JP31780098

申请日：1998-11-09

Applicant: SONY CORP

Inventor： TAKEDA RITSU ,  KUMAI SATOSHI ,  MIKAMI TATSURO ,  UEHARA SHUJI ,  OKANISHI TOSHIHARU ,  OGAWA KENJI ,  NISHIDA NORIO ,  SATO MASASHI ,  ISHIKAWA HIDEKI ,  MUNEKATA KAZUMI ,  YANAGIMOTO KAORU ,  MITSUNE NORICHIKA

IPC: G11B7/24 ,  G11B7/007 ,  G11B7/26 ,  G11B19/247 ,  G11B20/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30

Abstract: PROBLEM TO BE SOLVED: To enable accurate recording and reproducing clocks to be generated by making constant the line density for the wave number regarding wobbling waveform of a track and forming a rotation angle mark indicating a prescribed rotation angle position of a disk. SOLUTION: Data are recorded while keeping constant line density(CLD), and the number of carrier waves of a wobbling group is assumed to CLD, further, a fine clock mark is added as CAV reference, and record and reproduction being more accurate are aimed at, and the wobbling period of a group is set. First, in adjacent tracks, the phase relation of a wobbling waveform is made so that a rotation angle position to be fixed relation exists. For example, when a rotation angle position of a start point of each rotation track is assumed to be 0 degree (the direction of 12 o'clock of a clock), the phase difference between adjacent tracks is made to have fixed relation at this position 0 degree. Further, a fine clock mark is added to a rotation angle position in fixed relation when phase difference is 0, 180, or 270 degrees.

公开(公告)号：JPH01119971A

公开(公告)日：1989-05-12

申请号：JP27687787

申请日：1987-10-31

Applicant: SONY CORP

Inventor： TAGUCHI KEIICHI ,  YANAGIMOTO KAORU

IPC: G11B5/596 ,  G11B21/10

Abstract: PURPOSE:To attain satisfactory tracking with respect to the eccentricity and deformation of a disk by using present tracking error data for the head jogging control of a disk rotation after one cycle. CONSTITUTION:A head position detection means 20 detects the present head position, and an addition means 21 adds head position data from the head position detection means 20 and tracking error data from tracking error detection parts 18 and 19, whereby an output from the addition means 21 is delayed by one cycle of the disk rotation. The jogging of a head 11 is controlled according to a difference between delay data from a delay means for one cycle 22 and head position data from the head position detection means 20. Thus, tacking control is attained with extreme precision even if the actual track position on the disk largely changes.

公开(公告)号：JPH0192969A

公开(公告)日：1989-04-12

申请号：JP24937187

申请日：1987-10-02

Applicant: SONY CORP

Inventor： TAKAHASHI TADASHI ,  YANAGIMOTO KAORU ,  YAMASHITA YOSHIHIDE ,  TAGUCHI KEIICHI ,  KOBAYASHI YUKIO

IPC: G11B21/10 ,  G11B19/06 ,  G11B19/12

Abstract: PURPOSE:To simplify a circuit constitution for disk discrimination by selecting one frequency of a servo signal so as to be equal to a recording line density on a magnetic disk respectively in 1st and 2nd modes so as to decrease the number of band pass filters. CONSTITUTION:A signal from a reproducing amplifier 2 is fed to band pass filters 91-93 having three kinds of frequencies in a period of servo ID and servo data signal at recording and reproduction and signals from the filters 91-93 are fed to a circuit 10 detecting ID signal and the detected ID signal is fed to a CPU 11 for driving control. In obtaining a signal from a filter of a frequency 125kHz among the band pass filters 91-93, it is discriminated that the disk is a disk of a 1st or 2nd mode. Through the constitution above, the signal recorded in a line density equal to each other on a disk is reproduced by an equal frequency. Thus, the detection is implemented by using a single band pass filter so as to decrease the number of the band pass filters, thereby simplifying the circuit constitution for disk discrimination.

公开(公告)号：JPS6466861A

公开(公告)日：1989-03-13

申请号：JP22256387

申请日：1987-09-05

Applicant: SONY CORP

Inventor： YANAGIMOTO KAORU ,  OTA TOSHIRO

IPC: G11B17/04 ,  G11B17/043

Abstract: PURPOSE:To reduce the size, the weight and the cost of a disk device by ejecting a disk-shaped recording medium by using effectively a disk driving motor. CONSTITUTION:In case of the ejection in an arrow a' direction, an auto-eject device 16 drives the disk driving motor 7 according to an eject instruct signal so as to rotate in the reverse direction of a positive rotation at the time of the recording and the reproducing of the disk 1, and drives a gear 17 at the lower part of a disk table 5, i.e., an eject driving body so as to rotate reversely in the arrow b' direction, and establishes an eject mode. At that time, a friction clutch 45 with a clutch plate 44 to be rotated and energized according to the positive or the reverse rotation of the gear 17 is provided at the lower surface of the gear 17. The clutch plate 44, rotated and energized in the arrow b' direction by the reverse rotation drive of the gear 17 in the arrow b' direction, pushes and presses one end 19a of a lever 19, i.e., a trigger member in the arrow b' direction, and the other end 19b pushes and presses the arm 22a of an eject mechanism 21. Thus, the disk device can be made small, light and low-cost.

公开(公告)号：JPS62146473A

公开(公告)日：1987-06-30

申请号：JP28906085

申请日：1985-12-21

Applicant: SONY CORP

Inventor： IJUIN TAKASHI ,  YANAGIMOTO KAORU

IPC: G11B21/08 ,  G11B21/10

Abstract: PURPOSE:To prevent a magnetic head from generating a malfunction to e generated at the positioning on the 2nd area when power is turned on and to position the magnetic head on a prescribed position by outputting different detecting signals from a sensor in accordance with positioning of the magnetic head on the 1st area including a track which is a border for a positioning reference and on the 2nd area excluding the track. CONSTITUTION:An outside direction signal ODR indicating the moving direction of a magnetic head 1 and a pulse signal STP for starting a moving operation are applied from an external controller 7 to a driving control circuit 4 in a floppy disk driver 1. An 'L' level signal when the head 3 is positioned in the area forming no track or an 'H' level signal when the head 3 is positioned in the area forming the track is applied from a sensor 8 in a head driving mechanism 6 to the circuit 4 as a detecting signal CTO. If the head 3 is positioned on the outside of the track area when power is ON, the head 3 is moved up to the area in the track based on the signal CTO, or when the head is positioned in the track area, the head 3 is moved up to the outside area of the track.

公开(公告)号：JPS6115577A

公开(公告)日：1986-01-23

申请号：JP13489384

申请日：1984-06-29

Applicant: Sony Corp

Inventor： YANAGIMOTO KAORU

IPC: H02P29/00 ,  G11B19/28 ,  H02P5/00

CPC classification number: H02P5/00

Abstract: PURPOSE:To suppress an overshoot by providing a differentiation control system in a feedback control system. CONSTITUTION:A rotary signal SM obtained from rotation signal generating means 2 and a reference signal SREF are supplied to speed deviation forming means 4 to obtain a deviation amount of a motor rotating speed for the signal SREF. Means for applying differentiating characteristic of a speed deviation signal such as, digital differentiator is provided in the means 4. This speed deviation signal DELTAV is supplied through a low pass filter 5 to a motor driver 6. Thus, an overshoot at the motor rotation stopping time can be suppressed to shorten the matching time that the rotating speed of the motor arrives at the reference speed.

Abstract translation: 目的：通过在反馈控制系统中提供微分控制系统来抑制过冲。 构成：从旋转信号发生装置2获得的旋转信号SM和参考信号SREF被提供给速度偏差形成装置4，以获得用于信号SREF的电动机转速的偏差量。 在装置4中提供了用于应用诸如数字微分器之类的速度偏差信号的微分特性的装置。该速度偏差信号DELTAV通过低通滤波器5提供给电动机驱动器6.因此，电机旋转停止时的过冲 可以抑制时间来缩短电动机的转速达到基准速度的匹配时间。