公开(公告)号：JP2011053362A

公开(公告)日：2011-03-17

申请号：JP2009200892

申请日：2009-08-31

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HAYASHI NOBUHIRO ,  KISHIMA KOICHIRO ,  YAMAMOTO TAKASHI ,  KIHARA NOBUHIRO ,  YAMAGOSHI TAKAMICHI ,  SUZUKI FUMIYASU ,  NARISAWA TATSU

IPC: G02B21/06 ,  G02B21/36

CPC classification number: G02B21/367 ,  G01N1/312 ,  G02B21/34 ,  G06K9/00134 ,  G06K9/3216 ,  G06K9/3233 ,  G06T7/11 ,  G06T7/174 ,  G06T2207/10056 ,  G06T2207/30024

Abstract: PROBLEM TO BE SOLVED: To acquire a precise magnified image while improving usability. SOLUTION: The tissue-slice image acquirement method acquires a precise dark field magnified image while improving the usability by accurately acquiring a profile shape of a tissue-section portion in a bright field thumbnail image by: correcting the profile shape of the tissue-section portion in a dark field thumbnail image based on the bright field thumbnail image; acquiring a dark field magnified image by using that profile shape; and then, displaying the bright field thumbnail image and the dark field magnified image together. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：在提高可用性的同时获取精确的放大图像。 解决方案：组织切片图像获取方法通过以下方式获得精确的暗视野放大图像，同时通过以下方式精确获取亮区缩略图图像中的组织部分的轮廓形状，同时提高可用性：校正组织的轮廓形状 基于亮场缩略图的暗场缩略图图像中的切片部分; 通过使用该轮廓形状获取暗场放大图像; 然后一起显示亮场缩略图和暗场放大图像。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2005243134A

公开(公告)日：2005-09-08

申请号：JP2004051215

申请日：2004-02-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HAYASHI NOBUHIRO ,  UCHIDA MASAKI

IPC: G11B20/10 ,  G11B20/12

Abstract: PROBLEM TO BE SOLVED: To suppress tampering of unique information recorded on a recording medium. SOLUTION: In this invention, when servo information is recorded in the servo zone of a magnetic disk, a recording pattern 151 consisting of a magnetization transition point a1 and a magnetization transition point b1 is recorded in the prescribed area of a data zone and a recording pattern 152 consisting of a magnetization transition point a2 and a magnetization transition point b2 is recorded with a recording current weaker than that of ID information so that its phase does not overlap with the magnetization transition point a1 and the magnetization transition point b1 in the same area as the area where the recording pattern 151 is recorded in the next circulation. The area where the recording patterns 151, 152 are recorded is reproduced as a reproduced signal waveform 161 in which amplitude of a point A2 and a point B2 to which the magnetization points a2, b2 are made to correspond is large and amplitude of a point A1 and a point B1 to which the magnetization points a1, b1 are made to correspond is small. The invention is applicable to a recording and reproducing device for recording, viewing and listening contents which need protection of intellectual property. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：抑制记录在记录介质上的唯一信息的篡改。 解决方案：在本发明中，当伺服信息被记录在磁盘的伺服区中时，由磁化转变点a1和磁化转变点b1组成的记录图形151被记录在数据区的规定区域中 并且记录由磁化转变点a2和磁化转变点b2组成的记录图形152的记录电流弱于ID信息的记录电流，使得其相位不与磁化转变点a1和磁化转变点b1重叠 与在下一循环中记录记录图案151的区域相同的区域。 记录记录图形151,152的区域被再现为再现信号波形161，使得磁化点a2，b2对应的点A2和点B2的振幅大，点A1的振幅 并且使磁化点a1，b1对应的点B1小。 本发明适用于需要保护知识产权的用于记录，观看和收听内容的记录和再现装置。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2001057019A

公开(公告)日：2001-02-27

申请号：JP23038199

申请日：1999-08-17

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO ,  FUKUYAMA MUNEKATSU

IPC: G11B20/10 ,  G06F12/14 ,  G06F21/00 ,  G06F21/24 ,  G10K15/02 ,  G11B20/00

Abstract: PROBLEM TO BE SOLVED: To prevent a recording and a reproducing of information by an unauthorized user, who does not have a normally licensed device, by providing a constitution in which a secret key is recorded in a special data recording region as key information of an open key ciphering system. SOLUTION: An open key and a secret key used in an open key ciphering system are recorded in a track #-1 as disk medium intrinsic information. In other words, the track #-1 is regarded as a special data recording region to record the open and the secret keys and the secret key is recorded in a sector #0 of the track #-1, secret key recording information is recorded in a sector #1 and the open key is recorded in a sector #2. When a disk device, in which the secret key and the secret key recording information are recorded in a track #1, receives a new secret key recording command, the secret key recording information of the first sector of the track #-1 is reproduced first. When the secret key recording information indicates the fact that the secret key is already recorded, no recording takes place for a new secret key on a disk and an error is returned.

公开(公告)号：JP2001052454A

公开(公告)日：2001-02-23

申请号：JP22044799

申请日：1999-08-03

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO ,  YADA HIROAKI ,  YAMAGOSHI TAKAMICHI

IPC: G11B21/10 ,  G11B20/18

Abstract: PROBLEM TO BE SOLVED: To minimize the probability that servo information is misdetected by inputting phase-difference divided bit streams generated by dividing a sampled bit stream by an analog-digital converting circuit and detecting addresses according to the individual input divided bit streams. SOLUTION: The signal converted by an A/D converter(ADC) 526 is inputted to a track number/position signal detecting circuit 517, whose detection signal is further inputted to a position control circuit 522 performing position control, and a voice coil motor(VCM) 523 is driven to control the positioning of a head 512. The 4-fold oversampling signal from the ADC 526 is inputted sequentially to an address detector of a track number/position signal detecting circuit 517, one by one, to discard a 4th sample and then the next and succeeding samples are inputted to the address detector in order.

公开(公告)号：JP2000276856A

公开(公告)日：2000-10-06

申请号：JP8039299

申请日：1999-03-24

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO ,  YADA HIROAKI

IPC: G06F11/10 ,  G06F12/16 ,  G11B20/18 ,  H04N5/78 ,  H04N7/24 ,  H04N19/00 ,  H04N19/65

Abstract: PROBLEM TO BE SOLVED: To efficiently suppress the occurrence of errors in data while securing a real time property in the case of recording and reproducing data such as compressed image data to which the real time property is requested. SOLUTION: In the case of recording data constituting an AV data stream on a magnetic disk 5, information showing the importance degree of a cluster is temporarily stored in a temporary storage register 34 for each cluster. While referring to the temporary storage register 34, an ECC circuit 41 recognizes the importance degree of a cluster to be recorded and the error-correcting code of a correction ability corresponding to the importance degree is added to the cluster.

公开(公告)号：JPH11163743A

公开(公告)日：1999-06-18

申请号：JP32635397

申请日：1997-11-27

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO

IPC: G11B20/10 ,  G11B20/18 ,  H03M13/23 ,  H04L25/497 ,  H03M13/12

Abstract: PROBLEM TO BE SOLVED: To provide a device that is suitable for EPR 4 channels, where a coding rate is enhanced to 16/18, and that decodes a trellis code to which processing of eliminating a QC sequence has been applied. SOLUTION: In a Viterbi decoder that decodes a 16/18 code, a maximum likelihood path metric selection circuit 22 provides a new path metric to a replacement circuit 25. The replacement circuit 25 changes a correspondence between a received path metric and a storage area in a latch circuit 23 according to a signal generated from a counter 26, each time it counts the number of arithmetic operation times up to 9. Since the Viterbi decoder processes equalized signals for each two samples, when arithmetic operations of 9 times correspond to processing of 18 samples (that is, a portion corresponding to one code word). The path metric is replaced by allowing the latch circuit 23 to latch an output of the replacement circuit 25, so that a trellis code subjected to processing of eliminating a QC sequence is decoded.

公开(公告)号：JPH11154303A

公开(公告)日：1999-06-08

申请号：JP32137497

申请日：1997-11-21

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO

IPC: G11B5/09

Abstract: PROBLEM TO BE SOLVED: To provide an information reproducing device reducing deterioration in detection performance due to fluctuation in signal amplitude while causing thermal asperity(TA) with respect to a magnetic disk or a magnetic tape device. SOLUTION: A means 18 adjusting a variable gain amplifier 11 (AGC amplifier) adjusting an amplitude reference level supplied to a viterbi decoder 19 when the occurrence of the TA peculiar to an MR head 23 is detected, or adjusting a gain so that the signal amplitude is fixed at a regular reproducing time is provided. By correcting the deterioration in the regenerative signal amplitude while causing the TA with the viterbi decoder or the AGC amplifier, an increase of a bit error while causing the TA is suppressed.

公开(公告)号：JPH1116278A

公开(公告)日：1999-01-22

申请号：JP16710697

申请日：1997-06-24

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO

IPC: G11B20/10 ,  G11B20/18

Abstract: PROBLEM TO BE SOLVED: To attain the reduction of power consumption without lowering the detection accuracy by decoding an input signal and reproducing the information in accordance with digital data, in which the A/D conversion is made on the vicinity of a middle value of amplitude values at the plural signal existing points in the input signal at the quantization step width smaller than that of other regions. SOLUTION: The data which the inputted writing data are channel encoded by a channel encoder 1, are written into a magnetic disk 3 through a recording amplifier 2. The reproduced signal read out from the magnetic disk 3 through a head is equalized to the waveform of inter leaved NRZI code by an equalizer 5 to which the reproduced signal is inputted through a reproduction amplifier 4. The quantization is made by an A/D converter 6, to which this equalized signal is inputted, at the smaller step width on the vicinity of the information discriminating boundary value in the middle of plural signal existing points, conversely at the larger step width on the vicinity or the outside of the signal existing points. By this constitution, the reduction of the number of comparators in the A/D converter 6 and of the power consumption is attained without lowering the accuracy at the time of decoding.

公开(公告)号：JPH08167248A

公开(公告)日：1996-06-25

申请号：JP31015394

申请日：1994-12-14

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO

IPC: G11B20/10 ,  G11B20/18 ,  H03M13/00

Abstract: PURPOSE: To shorten decoding delay without degrading a bit error rate which is the result of decoding. CONSTITUTION: The data recorded on a magnetic disk 53 by the channel signals to limit the max. run of 0 to K-bit is decoded by a Viterbi decoding method using a path memory having K+1 stages of shift registers in a Viterbi decoder 57. The path memory has two shift registers for temporarily deciding 0 or 1 each and the output of the shifter register for temporarily deciding the 1 of these registers is used as the result of decoding.

公开(公告)号：JPH06282806A

公开(公告)日：1994-10-07

申请号：JP9364893

申请日：1993-03-29

Applicant: SONY CORP

Inventor： HAYASHI NOBUHIRO

IPC: G11B5/09

Abstract: PURPOSE:To prevent occurrence of inter-code interference by a method wherein at least the leading part of a data area is magnetized initially in a prescribed direction of magnetization beforehand and information is recorded so that a magnetized part is formed in the same direction as the prescribed direction of magnetization. CONSTITUTION:A servo area is formed by a means wherein the part of a magnetic body 1b formed on a disk base 1a which corresponds to the servo area is magnetized with a direct current in the lateral direction (track direction). As for a data area, at least the leading part thereof is magnetized initially in the same direction as the direction of magnetization of the servo area. When data are recorded, a recording current flows through the leading part of the data area so that this part is magnetized in the same direction as the direction of the initial magnetization thereof, and therefore no unnecessary transition of magnetization is formed in the leading part of the data area. Accordingly, no inter-code interference occurs when the data recorded in the leading part of the data area are reproduced.