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1. 发明专利

JPH1166740A INFORMATION REPRODUCING DEVICE 失效
公开(公告)号：JPH1166740A
公开(公告)日：1999-03-09
申请号：JP22824097
申请日：1997-08-25
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , SHIMURA SHIGEO
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005 , G11B27/10
摘要： PROBLEM TO BE SOLVED: To make contents of a protective code unanalyzable and also to prevent a falsified control ROM from being mounted by making a stored area of a genuine control ROM recorded with the protective code difficult to observe. SOLUTION: An IC package 16 is composed of a CPU 16a for search operation via an external control line in accordance with a control program recorded on the control ROM 17 or operation control of the whole device, such as on/off- operation on a controller 4 for drive control, a DVD signal processing circuit 8, a DVD-ROM signal processing circuit 12 and an I/F control circuit 14 or the like, and a protective code housing ROM 16b, which are connected up via an internal control line. Then, the IC package 16 has no output of a protective code control line (internal read/write line) to the outside, so that control contents of the protective code cannot accurately be observed from the external control line.

2. 发明专利

JPH08221907A DIGITAL DATA PROCESSING CIRCUIT 失效
公开(公告)号：JPH08221907A
公开(公告)日：1996-08-30
申请号：JP3071495
申请日：1995-02-20
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , KOBAYASHI AKIRA
IPC分类号： G11B20/14
摘要： PURPOSE: To stably allows the reading out of data registive against noise with a low error rate without utilizing a PLL circuit for generating a clock even when the fluctuation of a transfer speed at the transfer origin covers over a wide range. CONSTITUTION: The inverting interval of an input signal is counted by means of a fixed clock in counters 12, 13, the counted result is calculated through a multiplying circuit 18 and a divider circuit 19 and made to become a value capable of performing the comparison of the respective signal components with a digital signal format in a detecting circuit 21 for arithmetic value component. The value is decoded in a decoding circuit 24 and the discrimination of an inverted length with the digital signal format is enabled in a serial data converter circuit 25, a synchronization detecting circuit 26 and a data part sampling circuit 30.

3. 发明专利

JP2001290567A COMPUTER PERIPHERAL DEVICE AND IMAGE REPRODUCING DEVICE 失效
公开(公告)号：JP2001290567A
公开(公告)日：2001-10-19
申请号：JP2000104494
申请日：2000-04-06
申请人： TOSHIBA CORP
发明人： KOBAYASHI AKIRA , KAWAMOTO KOTARO
IPC分类号： G06F1/28 , H04N5/765 , H04N5/85
摘要： PROBLEM TO BE SOLVED: To prevent a defect in operation in the case of battery-over state during the battery operation of computer peripheral equipment connected to a portable information processor. SOLUTION: In the figure, 16 is a battery reset monitor circuit and 17 is a resistance for detecting the charging and discharging currents of a battery 13. A submicrocontroller 10 when detecting (battery residual capacity)

4. 发明专利

JPH11161960A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH11161960A
公开(公告)日：1999-06-18
申请号：JP32929897
申请日：1997-11-28
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , KOBAYASHI AKIRA
IPC分类号： G11B20/10 , G11B7/00 , G11B7/004 , H03M7/30
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device capable of reducing complex processings in the case where the information quantity of recording data exceeds the storage capacity of one sheet of an optical disk. SOLUTION: This optical disk device is provided with a compressing means 19 generating data for compressed recording by compressing the recording data, recording means 2, 7 which reflect the data for compressed recording to a light beam for recording data and records the data for compressed recording with respect to an optical disk 1 by irradiating the disk 1 with the light beam for recording the data to which the data for compressed recording are reflected, reproducing means 2, 7 which irradiates the disk 1 with the light beam for reproducing data and reproduces the data of the disk 1 by receiving the reflected light to which the data of the disk are reflected recorded on the disk 1 and an expanding means 20 which expands the data of the optical disk and outputs the expanded data of the disk as reproduced data.

5. 发明专利

JPH10112068A DISK AND DISK REPRODUCING DEVICE 失效
公开(公告)号：JPH10112068A
公开(公告)日：1998-04-28
申请号：JP26473996
申请日：1996-10-04
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , KOBAYASHI AKIRA
IPC分类号： G11B7/24 , G11B7/00 , G11B7/004 , G11B19/12
摘要： PROBLEM TO BE SOLVED: To surely and instantly discriminate the number of reflection layers on one surface of a disk by providing a first area where information are recorded by the formation of bit and a second area where disk form information capable of discriminating the number of reflection layers of one surface of the disk are recorded by selectively eliminating the reflection layers on the disk. SOLUTION: A reflection layer elimination pattern data recording area B to be constituted by recording patterns of target data while selectively eliminating the reflection layers is provided at the inner peripheral side of an ordinary data recording area A where data are recorded by the formation of bit on the disk. Since the reflected light detection level of a reflection elimination part is sufficiently lower than the bottom detection level of the signal of the data recording area A and is an equal value independent of the number of the reflection layers, a constant binary signal is easily obtained and the reproducing of data is performed satisfactorily. Thus, the number of layers of the single surface of the disk is surely and instantly discriminated.

6. 发明专利

JPH09161377A DISK REPRODUCING DEVICE 失效
公开(公告)号：JPH09161377A
公开(公告)日：1997-06-20
申请号：JP31684495
申请日：1995-12-05
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , SUZUKI MINORU
IPC分类号： G11B20/10 , G11B19/02 , G11B19/247 , G11B19/28 , G11B27/10
摘要： PROBLEM TO BE SOLVED: To shorten a rotation waiting time when the data of a disk outer peripheral part are accessed and to enhance a transfer rate near the limit of a signal processing circuit. SOLUTION: This device reproduces the disk recording the data at a constant linear velocity, and is provided with a means for setting a boundary position between an inner peripheral part and an outer peripheral part of the disk, a reproducing position detection part 15 for detecting a reproducing track position on the disk and a comparison part 17 for comparing the detected reproducing track position with the set boundary position. When it is judged when that the reproducing track is positioned at the disk outer peripheral part side from the boundary position, the revolving speed of the disk is controlled so that the linear velocity higher than a standard reproducing linear velocity within the range of a data reproducible linear velocity (capture range) of a data strobe PLL circuit 8 is obtained from the time when present data reproducing is ended to the time when a next data reproducing command is issued.

7. 发明专利

JP2007004889A Recording method of recording and reproducing device, and semiconductor integrated circuit 审中-公开
标题翻译：记录和再现设备的记录方法和半导体集成电路
公开(公告)号：JP2007004889A
公开(公告)日：2007-01-11
申请号：JP2005183240
申请日：2005-06-23
申请人： Toshiba Corp , Toshiba Digital Media Engineering Corp , 東芝デジタルメディアエンジニアリング株式会社 , 株式会社東芝
发明人： KAWAMOTO KOTARO
IPC分类号： G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide a recording and reproducing device capable of saving the time and labor in writing desired data to a DVD disk in the case of writing only the desired data recorded in a hard disk to the DVD disk in a recording method of the recording and reproducing device.
SOLUTION: In the case of recording the desired data in the hard disk (HDD) of the recording and reproducing device to the DVD disk, the presence of data recorded in the DVD disk is determined (S103), and when the data are recorded in the DVD disk, all the data recorded in the DVD disk are recorded in the HDD (S104), all the data recorded in the DVD disk are erased (S106) after the data recorded in the DVD disk are recorded in the HDD, and the desired data in the HDD are recorded in the DVD disk (S108) after all the data recorded in the DVD disk are erased.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种记录和再现装置，其能够在仅将记录在硬盘中的期望数据写入DVD盘的情况下节省将所需数据写入DVD盘的时间和人力记录和再现装置的记录方法。解决方案：在将记录和再现设备的硬盘（HDD）中的所需数据记录到DVD盘的情况下，确定记录在DVD盘中的数据的存在（S103），并且当数据记录在DVD盘中的所有数据被记录在HDD中（S104），在记录在DVD盘中的数据被记录在HDD中之后，记录在DVD盘中的所有数据被擦除（S106）所有数据记录在DVD盘中的所有数据都被记录在DVD盘中（S108）。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JPH087468A OPTICAL DISK REPRODUCING DEVICE 失效
公开(公告)号：JPH087468A
公开(公告)日：1996-01-12
申请号：JP14363094
申请日：1994-06-24
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , OBATA HIROSHI , TAKANO KUNIYOSHI
IPC分类号： G11B20/14 , G11B19/247 , G11B19/28
摘要： PURPOSE:To properly reproduce a disk even though a reproduced linear speed is greatly deviated from a normal speed as in the case of right after a track search by generating an optimum VCO frequency, which makes the device to follow the change in a reproducing speed, as a data reading clock. CONSTITUTION:The device is provided with a synchronization pattern detecting circuit 16 which detects a synchronization pattern from EFM signals, an F-V converting circuit 17 which converts the period of synchronization pattern detection pulses to a voltage and an adding circuit 15 which adds the voltage obtained by the circuit 17 and the phase difference voltage obtained by a phase comparator 11 and applies the voltage to a VCO circuit 12 as a control voltage. The oscillating frequency of the circuit 12 varies from the condition, in which the oscillation frequency is synchronized with a reproducing speed, to the condition in which the oscillation frequency is increased in proportion with the reproducing speed, i.e., in proportion with the output voltage of the circuit 17. Thus, an optimum data reading clock is generated while following a reproducing speed.

9. 发明专利

JPH1141563A DIGITAL VIDEO IMAGE REPRODUCTION SYSTEM 失效
公开(公告)号：JPH1141563A
公开(公告)日：1999-02-12
申请号：JP19570997
申请日：1997-07-22
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO , KOBAYASHI AKIRA
IPC分类号： H04N5/92 , G11B20/10 , G11B27/00 , H04N5/937
摘要： PROBLEM TO BE SOLVED: To select and reproduce a stream not selected at a multi-story start from a point of time of reproduction of a story selected by the multi-story start. SOLUTION: Information of a selectable story number is extracted from an optical disk having compressed data resulting from applying MPEG encoding to multi-story information including a plurality of story expansion sets. Based on the above selectable story number information, a recording area of a buffer used for MPEG decoding is divided into a number depending on the selectable story number. While data to be decoded in a story S#1 selected among the multi-story are stored in part (LSB-AP1) of a division area of the buffer, the data are MPEG-decoded, and data to be decoded in a non-selected story S#2 not selected in the said multi-story are stored in other parts (AP1-MSB) of the division area of the buffer.

10. 发明专利

JPH0430339A TRACKING SERVO CIRCUIT FOR DISK REPRODUCING DEVICE 失效
公开(公告)号：JPH0430339A
公开(公告)日：1992-02-03
申请号：JP13544190
申请日：1990-05-28
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： KAWAMOTO KOTARO
IPC分类号： G11B7/095
摘要： PURPOSE:To devise the circuit that an undesired track jump is hardly caused by adding levels of a tracking error signal and a cancel signal generated based on a flaw detection signal outputted from a flaw detection means. CONSTITUTION:When a level of an RF signal outputted from an RF amplifier circuit 19 is decreased, a flaw detection signal at a prescribed level is generated from a flaw detection circuit 20 while the level of an RF signal is decreased to a prescribed level or below, and outputted to a cancel circuit 17. In this case, the cancel circuit 17 generates a cancel voltage corresponding to a level of the inputted flaw detection signal and the level of the cancellation voltage and the tracking error signal are added. Thus, since an abnormal level due to a flaw of the disk included in a tracking error signal subject to phase compensation at a phase compensation circuit 14 is almost cancelled by the cancel voltage, occurrence of an undesired track jump due to the flaw of the disk is prevented.

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