Iomega Corporation

Datex-ohmeda, Inc.

Paradygm Science & Technologies, Inc.

Masstron, Inc.

Thomas A Wilke

Yiping Ma

Allen T Bracken

John R Stokes

Randall C Bauck

Marvin R Deforest

Ronald R Bowman

Ingvar E Sodal

Dennis Duane Ogden

David S Greenhalgh

Ziyi Wang

W Peter Schubert

Frank Weller

Michael Dickson

An information storage device includes a cradle which can removably receive a cartridge that contains a rotatable hard disk. A read/write head is supported for movement adjacent the disk by a pivotal actuator arm. The cradle controls alignment of the head with the disk using feedback servo tracking. Servo parameters needed by the cradle to perform this tracking may be stored in a special wide track which is on the disk, and which may be a read-only track. Alternatively, the track may store updated firmware that can be loaded into the cradle. One approach to reading this special wide track is to effect servo tracking using default servo parameters. A different approach is to bias the actuator arm against a mechanical stop.

Method and apparatus for making a drive compatible with a removable cartridge

An information storage device ( ) includes a cradle ( ) which can removably receive a cartridge ( ). The cartridge contains a rotatably supported disk ( ), and a pivotal actuator arm ( ) which supports a read/write head ( ) for movement adjacent the disk. A coil ( ) on the arm interacts with an external magnetic field to effect pivotal movement of the arm. The cartridge may contain a spin motor ( ) for effecting rotation of a disk. A preamplifier ( ) and an electrostatic discharge buffer ( ) are provided for the head. A read-only memory ( ) contains characteristic information about the cartridge, and an hour meter ( ) contains information about the cumulative amount of time that the cartridge has been used. A connector ( ) is provided to electrically couple external circuitry to electrical components within the cartridge. A single flex circuit ( ) effects all electrical coupling between the connector and the electrical components within the cartridge.

Method and apparatus for electrically coupling components in a removable cartridge

An information storage device ( ) includes a cradle ( ) which can removably receive a cartridge ( ). The cartridge has a sealed housing ( ) which contains a rotatably supported disk ( ), and a pivotal actuator arm ( ) that supports a magnetic head ( ) for movement adjacent the disk. When the cartridge is removed from the cradle, the head is moved to a parked position with respect to the disk, in which a magnetically permeable part ( ) on the actuator arm is in close proximity to a magnetic arrangement ( ) disposed within the housing. The magnetic arrangement exerts a strong magnetic force that resists movement of the arm and head away from the parked position. The cradle has a shunt ( ) which, when the cartridge is removably inserted, interacts with the magnetic field through a wall of the sealed housing, in a manner which reduces the effective magnetic force that tends to retain the arm and head in the parked position.

Method and apparatus for parking and releasing a magnetic head

In a magnetic or optical disk drive the integrity of data written on a disk is verified by writing data to a portion of the disk, and immediately reading the data from the disk after it has been written. If there is error in reading the data and/or the data read from the disk is substantially different from the data written to the disk an error condition is generated. The error condition may be reporting the error to the host which decides whether to rewrite the data or immediately rewriting the data without further instructions from the host.

Method for detecting transient write errors in a disk drive having a dual transducer slider

A novel respiratory gas analyzer employs optical fibers to facilitate in-stream, multiple component infrared analysis. In one embodiment, the analyzer (10) includes an infrared source (12), entrance optics (14), a sample chamber (20), exit optics (24) and a detector assembly (28). One or both of the entrance optics (14) and exit optics (24) includes infrared optical fibers. In this manner, the source (12) and or detector assembly (28) can be located away from the patient (22) as may be desired. In addition, the fiber optic implementation reduces system complexity and optical alignment concerns.

Fiber optic based multicomponent infrared respiratory gas analyzer

The present invention provides a method for brazing a metal object to a ceramic surface defining a recess for receiving the metal object where the space between the metal object and the ceramic surface defining the recess inhibits the establishment of the oxygen depleted environment necessary to establish a reliable braze joint. The present invention includes the use of a material having a high affinity for oxygen that is positioned adjacent to the space between the metal object and the ceramic surface defining the recess and serves to pull or draw oxygen from the space to establish the oxygen depleted environment required to produce a reliable braze joint.

Process for brazing a metal object to a ceramic surface defining a hole

An apparatus is provided for use in determining the components of an inputted gas mixture. The apparatus includes a single piece body or framework preferably made of a high insulating material, such as ceramic. The body includes a number of cut-outs for receiving or incorporating hardware used in generating ions, controlling their movement, and directing them to an ion collector plate. One of the cut-outs formed in the insulating body receives an ion source assembly. Another of the cutouts is a passageway with metallized material coated along the walls thereof for use in generating an electric field. A third cut-out receives and is associated with a magnet assembly used in directing ion movement towards the collector plate. The single body and cut-out construction reduces the number of individual parts, improves the assembly of such parts and reduces adjustment time associated with such parts. The magnetic assembly is formed using pairs of identical parts in a sandwich-like construction to also facilitate assembly of the apparatus. The body also includes a number of feed through holes for receiving conducting pins. The locations of the holes are precisely formed in the body and the conducting pins are used in providing electrical communication between apparatus parts and control hardware.

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Boulder, CO, United States of America

Thomas A Wilke