-
公开(公告)号：JP2003059217A
公开(公告)日：2003-02-28
申请号：JP2002212175
申请日：2002-07-22
Inventor： OTTESEN HAL HJALMAR , SMITH GORDON JAMES
CPC classification number: G11B5/012 , G11B5/59633 , G11B5/59688 , G11B20/1217 , G11B27/3027 , G11B2020/1292 , G11B2020/1298 , G11B2220/20
Abstract: PROBLEM TO BE SOLVED: To provide a recording disk for a disk drive storage device with enhanced servo technology.
SOLUTION: A recording disk has at least two types of servo sector formats including a first type having a track identification field 405 with a track number and a second type having an abbreviated track field 406 to identify the track in the track area smaller than the entire track area on a disk face. Preferably the track field of the first type employing gray code encoding includes gray code bits sufficiently to identify the full track number, the N-th (N is ≥2) servo sector is the track field of the first type and all the servo sectors between them are track fields of the second type. As a result, the disk area required for the track ID can be reduced.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种具有增强的伺服技术的磁盘驱动器存储装置的记录盘。 解决方案：记录盘具有至少两种类型的伺服扇区格式，包括具有轨道号的轨道识别区域405的第一类型和具有缩写轨道场406的第二类型，以识别小于整个轨道区域的轨道 磁盘面上的磁道区域。 优选地，采用灰度编码的第一类型的轨道场包括充分地识别完整轨道号的灰度码位，第N（N => = 2）个伺服扇区是第一类型的轨道场和所有伺服扇区 它们之间是第二种类型的轨道。 结果，可以减少磁道ID所需的磁盘区域。
-
公开(公告)号：JP2001309448A
公开(公告)日：2001-11-02
申请号：JP2001073064
申请日：2001-03-14
Applicant: IBM
Inventor： SMITH GORDON JAMES , GEORGE WILLARD VAN LOEWEN
Abstract: PROBLEM TO BE SOLVED: To provide a method and system that optimizes a call in the vicinity of a wireless dead zone in mobile communication. SOLUTION: When a mobile unit (301) approaches a communication dead zone (304), the call of the mobile unit (301) is automatically interrupted in a proper mode (305). When the mobile unit (301) goes out of the communication dead zone (304), the speech can be reconnected automatically (306). In order to inform the mobile unit (301) that the mobile unit (301) approaches the dead zone (304), at least one of an audible message, a visual message and a contact stimulus as part of the proper automatic interruption is given to the mobile unit (301) and an opposite party of the call. Furthermore, this message can instruct at least either of a time, when the mobile unit (301) goes out of the dead zone (304) and an action which should be taken at that time. Similarly when the mobile unit (301) is going to go out of the dead zone (304), the instruction denoting it is given to the mobile unit (301) and its opposite party of the call prior to the reconnection.
-
公开(公告)号：JP2003091947A
公开(公告)日：2003-03-28
申请号：JP2002212141
申请日：2002-07-22
Applicant: IBM
Inventor： OTTESEN HAL HJALMAR , SMITH GORDON JAMES
Abstract: PROBLEM TO BE SOLVED: To provide a disk drive storage device in which servo technology is improved. SOLUTION: The disk drive storage device comprises embedded track identifying fields 410, 411 which identify a track within a range of tracks. The range being less than the full range of tracks on the disk surface. The full identify of a track during a track seek is determined by iteratively assuming a track identity, and estimating acceleration of the transducer based on the assumed track identity, until the track identify is found for which estimated acceleration meets some predetermined threshold.
-
公开(公告)号：JP2002140864A
公开(公告)日：2002-05-17
申请号：JP2001215689
申请日：2001-07-16
Applicant: IBM
Inventor： OTTESEN HAL H , CUNNINGHAM EARL A , GREENBERG RICHARD , BROWN DANA H , SMITH GORDON JAMES , VAN LEEUWEN GEORGE WILLARD
IPC: G06F3/06 , G11B5/012 , G11B5/09 , G11B5/39 , G11B5/55 , G11B5/596 , G11B7/0037 , G11B7/24 , G11B19/20 , G11B19/247 , G11B20/10 , G11B20/12 , G11B21/00 , G11B21/02 , G11B21/04 , G11B21/10 , G11B27/00 , G11B27/10 , H04N5/781 , H04N7/173
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device improved for storing multi-media data. SOLUTION: The multi-media data are stored in a long spiral data track by a disk drive. The track on the reverse surface of the disk is formed to the spiral state in the opposite direction, consequently, the track on one surface is read out when an actuator is swept in, and the track on the reverse face is read out when the actuator is swept out. The compression interleaving part of the video expression such as a movie is stored in blocks on the spiral track. The blocks on the spiral track are read out by the drive at one time from the beginning to the end, and the data from these blocks are arranged to a set of buffers corresponding to the different short time intervals. A video signal is outputted from these buffers. By means of switching to the buffer having the appropriate expression of the optional short time interval, the access is carried out in accordance with the request.
-
公开(公告)号：JPH10241333A
公开(公告)日：1998-09-11
申请号：JP3260198
申请日：1998-02-16
Applicant: IBM
Inventor： BLACHEK MICHAEL DAVID , SMITH GORDON JAMES
IPC: G11B23/50 , G11B5/012 , G11B5/39 , G11B5/48 , G11B5/54 , G11B5/58 , G11B5/82 , G11B5/84 , G11B19/04
Abstract: PROBLEM TO BE SOLVED: To eliminate irregular parts which are made high of a magnetic data storage disk by bringing an MR(magneto-resistance) head into contact with the irregular parts which are relatively soft in order to errode the irregular parts by friction. SOLUTION: The irregular part 245 which is made high of the magnetic storage disk is removed by eroding the irregulart part by friction while bringing the MR head into contact with the irregular part which is relatively soft. Here, the head can be brought into contact with the irregular part by being prolonged in the direction of the disk while selectively increasing the read bias current of the MR head. An advantage removing such an incomplete irregular part is that a thermal asperity to be generated when the head is unexpectedly brought into contact with the irregular part which is made high at the time of reading data is easily eliminated.
-
Patent Agency Ranking
公开(公告)号：JP2002216417A
公开(公告)日：2002-08-02
申请号：JP2001350537
申请日：2001-11-15
Applicant: IBM
Inventor： SMITH GORDON JAMES , VAN LEEUWEN GEORGE W
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for operating a disk at a low temperature. SOLUTION: The problem of generation of torque higher than needed for the normal rotational operation of a spindle motor assembly in a direct access storage device caused by the higher viscosity of grease in a cold weather is solved by localizing heating to the spindle motor assembly to lower the viscosity of the grease, then causing a disk drive to heat itself during or after the spinning-up (rotation starting) of the spindle motor assembly.
-
公开(公告)号：DE10110577B4
公开(公告)日：2007-05-24
申请号：DE10110577
申请日：2001-03-06
Applicant: IBM
Inventor： SMITH GORDON JAMES , LEEUWEN GEORGE WILLARD VAN
-
公开(公告)号：BR9505660A
公开(公告)日：1997-11-04
申请号：BR9505660
申请日：1995-12-05
Applicant: IBM
Inventor： OTTESEN HAL HJALMAR , SMITH GORDON JAMES , VANLEEUWEN GEORGE WILLARD
Abstract: A method and apparatus for effectuating the reception and local storage of source information signals representative of a media program transmitted from a source information network preferably over a cable television channel on a pay-per-view basis is disclosed. A local intelligent set-top control unit communicates with a remote information network and a local storage device to coordinate the transmission of customer ordered media programs from the information network for storage on the local storage device. The local storage device is preferably a standard video cassette recorder (VCR) providing full VCR control functionality when presenting a stored media program on a television. A digital or optical data storage disk drive system may alternatively be employed to store source information signals downloaded from the remote information network. The intelligent set-top control unit communicates a pay-per-view billing signal to the information network upon playing of a downloaded media program, and provides protection against unauthorized copying. In an alternative configuration, a set-top control card is installed into a host computer system to coordinate the reception and local storage of downloaded media programs, and preferably provides a platform for interfacing with other home communication and electronic systems.
-
公开(公告)号：CA2155889C
公开(公告)日：2001-05-29
申请号：CA2155889
申请日：1995-08-11
Applicant: IBM
Inventor： OTTESEN HAL HJALMAR , SMITH GORDON JAMES , VANLEEUWEN GEORGE WILLARD
Abstract: A method and apparatus for effectuating the reception and local storage of source information signals representative of a media program transmitted from a source information network preferably over a cable television channel on a p ay-per- view basis is disclosed. A local intelligent set-top control unit communica tes with a remote information network and a local storage device to coordinate the tran smission of customer ordered media programs from the information network for storage on the local storage device. The local storage device is preferably a standard vi deo cassette recorder (VCR) providing full VCR control functionality when presen tinga stored media program on a television. A digital o r optical data storage disk drive system may alternatively be employed to store source information signals dow nloaded from the remote information network. The intelligent set-top control unit communicates a pay-per-view billing signal to the information network upon p laying of a downloaded media program, and provides protection against unauthorized copying. In an alternative configuration, a set-top control card is install ed into a host computer system to coordinate the reception and local storage of downlo adedmedia programs, and preferably provides a platform f or interfacing with other home communication and electronic systems.
-
公开(公告)号：NO802746L
公开(公告)日：1981-03-18
申请号：NO802746
申请日：1980-09-16
Applicant: IBM
Inventor： LAMMERS GERALD BERNARD , SMITH GORDON JAMES
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.02 seconds)
