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公开(公告)号：AT316683T
公开(公告)日：2006-02-15
申请号：AT03745202
申请日：2003-03-21
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , TAYLOR MARK ALLAN
Abstract: An arrangement for sensing the position of a leader pin on a tape which is located within a cartridge shell. The arrangement senses the position of a pin in a tape cartridge through the intermediary of either electromagnetic sensors or electrostatic detection circuitry. Additionally, provided is a method for sensing the position of a pin on a tape inside a cartridge shell by employing either electrostatic detection structure or electromagnetic sensors.
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公开(公告)号：AU2003215760A1
公开(公告)日：2003-10-13
申请号：AU2003215760
申请日：2003-03-21
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , TAYLOR MARK ALLAN
Abstract: An arrangement for sensing the position of a leader pin on a tape which is located within a cartridge shell. The arrangement senses the position of a pin in a tape cartridge through the intermediary of either electromagnetic sensors or electrostatic detection circuitry. Additionally, provided is a method for sensing the position of a pin on a tape inside a cartridge shell by employing either electrostatic detection structure or electromagnetic sensors.
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公开(公告)号：AU7523891A
公开(公告)日：1991-12-05
申请号：AU7523891
申请日：1991-04-23
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , FENNEMA ALAN AUGUST , MCREYNOLDS DAVID PAUL
Abstract: The present invention relates to a rotatable work tool assembly comprising a rotatable body (13), a fixed holder for the body, a work tool (22) mounted on the body, a pivot pin (21) extending from the holder, and a recess (20A) within the body adapted to receive the pivot pin so that the body can rotate about the pivot pin relative to the holder and the work tool can move into a selected work position. According to the invention the assembly is characterized in that it comprises biasing means for applying a biasing force to the body in a direction along a line extending from the axis of the pivot pin to the work tool for all positions of the body as it rotates so as to tend to prevent any movement of the body relative to the pivot pin along the line due to spacing between the outer surface of the pivot pin and the inner surface of the recess.
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公开(公告)号：AU6930801A
公开(公告)日：2002-02-25
申请号：AU6930801
申请日：2001-07-06
Applicant: IBM
Inventor： BISKEBORN ROBERT GLENN , CHILDERS EDWIN RALPH , EATON JAMES HOWARD
IPC: G11B15/60
Abstract: A tape movement constraint is provided for a tape drive system which moves a tape longitudinally along a tape path across a tape head, the tape having longitudinal tracks. The tape head has a track following servo system for moving the head laterally for following lateral movement of the tracks, where the tape is subject to lateral transient movement. A tape roller bearing closely adjacent the tape head is rotatable about a central axis parallel to the cylindrical peripheral surface, allowing the tape freedom of movement in the longitudinal direction. The tape roller bearing has a frictional cylindrical peripheral surface for contacting and engaging the surface of the tape and constraining movement of the tape in the lateral direction, thereby reducing the rate of the lateral transient movement of the tape to allow the track following servo system to follow the reduced rate lateral transient movement of the longitudinal tracks. Any potential air bearing that could form between the surface of the tape and the surface of the roller bearing is collapsed to insure that the roller bearing frictionally contacts and engages the surface of the tape.
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公开(公告)号：SG42808A1
公开(公告)日：1997-10-17
申请号：SG1995002119
申请日：1994-10-19
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , DRIER JON SHEAFFER , HENRY MICHAEL
IPC: G11B7/0037 , G11B7/24 , G11B11/105 , G11B23/00 , G11B23/03
Abstract: A cartridge receives a variety of optical disks. The cartridge has a hinged lid for easy insertion and removal of the disks. A rotatable hub is mounted within the cartridge to receive the disks. An adaptor ring may be inserted into the cartridge to allow the cartridge to receive disks of different diameters. The cartridge is inserted into an optical drive which is able to operate with a variety of disks which may be inserted into the cartridge.
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Patent Agency Ranking
公开(公告)号：DE102013202471A1
公开(公告)日：2013-09-05
申请号：DE102013202471
申请日：2013-02-15
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , HANCOCK REED ALAN , SEGER PAUL J
IPC: G11B27/24
Abstract: Es werden Ausführungsformen einer Erfindung für das Anpassen des Bereichs zulässiger Bedingungen für das Schreiben auf ein Band einer Bandkassette beschrieben, das sich auf der Grundlage von Umgebungsbedingungen in Querrichtung ausdehnt oder schrumpft. Das Bandlaufwerk verwendet Servodaten, um zu ermitteln, ob sich das Band vom Sollmaß ausgedehnt hat oder geschrumpft ist, und um das Ausmaß der Ausdehnung oder der Schrumpfung zu ermitteln. Im Fall einer Ausdehnung müssen das Ausmaß der ermittelten Ausdehnung und der gespeicherte maximale Umfang der Schrumpfung unterhalb eines vorbestimmten Schwellenwerts liegen, um ein Schreiben zu erlauben. Im Fall einer Schrumpfung müssen das Ausmaß der ermittelten Schrumpfung und das gespeicherte Ausmaß der Ausdehnung unterhalb des gleichen vorbestimmten Schwellenwerts liegen, um ein Schreiben zu erlauben. Wenn das ermittelte Ausmaß der Schrumpfung oder der Ausdehnung größer ist als das gespeicherte Ausmaß der Schrumpfung bzw. der Ausdehnung, wird der neue Extremwert gespeichert.
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公开(公告)号：GB2499899A
公开(公告)日：2013-09-04
申请号：GB201302854
申请日：2013-02-19
Applicant: IBM
Inventor： HANCOCK REED ALAN , SEGER PAUL , CHILDERS EDWIN RALPH
IPC: G11B5/584
Abstract: A range of acceptable lateral tape expansion and contraction for acceptable write conditions is determined. A tape drive can utilize servo information to determine if the tape has expanded or contracted from the nominal dimension and to determine the magnitude of the expansion or contraction 706. In the case of expansion, the sum 720 of magnitude of the determined expansion and the stored maximum amount of contraction must be below a predetermined threshold value to allow a write 718. In the case of contraction, the sum 710 of magnitude of the determined contraction and the stored magnitude of expansion must be below the same predetermined threshold value to allow a write. If the determined magnitude of contraction or expansion is greater than the stored magnitude of contraction or expansion, respectively, then the new extreme is stored 716, 726. Thus, if a tape cartridge is in an environment in which the tape tends to either contract or expand the acceptable write condition range skews to the contracting or expanding environment.
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公开(公告)号：CA2039351C
公开(公告)日：1995-09-26
申请号：CA2039351
申请日：1991-03-28
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , FENNEMA ALAN AUGUST , MCREYNOLDS DAVID PAUL
Abstract: An optical disk recorder, or other apparatus, use a rotary actuator for supporting a work tool, such as an objective lens which is pivotable or rotatable about a pivot pin. Rotation causing or tracking coils on the rotary actuator are disposed adjacent to permanent magnets to selectively effect rotation of the rotary actuator about the pivot pin. A bias electrical current is supplied to these coils to generate magnetic fields which are in opposite rotational senses; such fields force the rotary actuator against the pin in such a manner that the point of contact between the rotary actuator and the pin follows the rotation of the actuator about the pin.
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公开(公告)号：BR9102191A
公开(公告)日：1991-12-24
申请号：BR9102191
申请日：1991-05-29
Applicant: IBM
Inventor： CHILDERS EDWIN RALPH , FENNEMA ALAN A , MCREYNOLDS DAVID P
Abstract: The present invention relates to a rotatable work tool assembly comprising a rotatable body (13), a fixed holder for the body, a work tool (22) mounted on the body, a pivot pin (21) extending from the holder, and a recess (20A) within the body adapted to receive the pivot pin so that the body can rotate about the pivot pin relative to the holder and the work tool can move into a selected work position. According to the invention the assembly is characterized in that it comprises biasing means for applying a biasing force to the body in a direction along a line extending from the axis of the pivot pin to the work tool for all positions of the body as it rotates so as to tend to prevent any movement of the body relative to the pivot pin along the line due to spacing between the outer surface of the pivot pin and the inner surface of the recess.
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10.发明专利
公开(公告)号：DE112020004204T5
公开(公告)日：2022-05-19
申请号：DE112020004204
申请日：2020-10-20
Applicant: IBM
Inventor： BISKEBORN ROBERT , HAMIDI HOODIN , CHILDERS EDWIN RALPH , ACOSTA DONALD CHARLES
IPC: G11B5/55
Abstract: Eine Vorrichtung enthält einen Empfangsbereich, der dazu gestaltet ist, eine Mehrzahl von Aufnahmen zu empfangen, wobei jede Aufnahme dazu gestaltet ist, zumindest ein Bandspulenpaar darauf zu tragen. Ein Magnetkopf ist dazu gestaltet, Datenvorgänge auf Magnetaufzeichnungsbändern der Bandspulenpaare durchzuführen. Ein Positionierungsmechanismus ist dazu gestaltet, den Magnetkopf selektiv auf ein ausgewähltes der Bandspulenpaare auszurichten. Eine Produktvorrichtung gemäß einem weiteren Ansatz enthält eine Aufnahme, auf der sich ein Bandspulenpaar befindet. Die Aufnahme ist dazu gestaltet, in einen Empfangsbereich einer Vorrichtung eingesetzt zu werden, der dazu gestaltet ist, eine Mehrzahl von Aufnahmen zu empfangen.
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