Device select system for multi-device electronic system

• US 8,879,209 B2
• Filed: 10/09/2013
• Issued: 11/04/2014
• Est. Priority Date: 04/12/2007
• Status: Active Grant

• Current Assignee: Globalfoundries US Incorporated (GlobalFoundries, Inc.)
• Original Assignee: International Business Machines Corporation
• Inventors: Biskeborn, Robert G., Tretter, Larry L.
• Primary Examiner(s): Negron, Daniell L
• Application Number:
  US14/050,267
• Publication Number:
  US 20140036393A1
• Time in Patent Office: 391 Days
• Field of Search: None
• US Class Current: 360/241.1
• CPC Class Codes: G11B 15/06 by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
• CPC Class Codes: G11B 15/087 by sensing recorded signals
• CPC Class Codes: G11B 15/1825 driving or moving the head in a direction which cuts across the direction of travel of the tape, e.g. for helicoïdal scanning
• CPC Class Codes: G11B 15/467 in arrangements for recording or reproducing wherein both record carriers and heads are driven see provisional also G11B15/1808
• CPC Class Codes: G11B 15/602 for track selection, acquisition or following
• CPC Class Codes: G11B 5/17 Construction or disposition of windings
• CPC Class Codes: H03K 17/002 Switching arrangements with several input- or output terminals code converters H03M5/00, H03M7/00
• CPC Class Codes: H03K 17/56 by the use, as active elements, of semiconductor devices using diodes H03K17/74

Abstract

In one general embodiment, a system includes a first device on a first substrate; a second device on a second substrate; and a device select system coupled to the first and second devices. The device select system includes: a first portion having an array of first electrical contacts; a second portion having an array of second electrical contacts, there being more second electrical contacts than first electrical contacts, the second portion being coupled to the first and second devices, each of the first electrical contacts being associated with at least two of the second electrical contacts; and a select mechanism for selectively placing each of the first electrical contacts in electrical communication with one of the second electrical contacts associated therewith.

Claims

1. A system, comprising:

a first device on a first substrate;

a second device on a second substrate, the second substrate being positioned relative to the first substrate to allow transduction of data by the first and second devices to and/or from data tracks on a same side of a recording medium, wherein longitudinal axes of each of the data tracks are oriented in a direction extending along a length of the medium in a direction of travel of the medium across the devices;

a device select system comprising;

a first portion having an array of first electrical contacts;

a second portion having an array of second electrical contacts, there being more second electrical contacts than first electrical contacts, the second portion being electrically coupled to the first and second devices, each of the first electrical contacts being associated with at least two of the second electrical contacts; and

a select mechanism configured to selectively place each of the first electrical contacts in electrical communication with one of the second electrical contacts associated therewith, the select mechanism being coupled to the first and second devices such that the select mechanism moves with the first and second devices relative to the direction of travel of the recording medium thereacross.

2. A system as recited in claim 1, wherein the first and second electrical contacts and select mechanism are formed in a common structure.

3. A system as recited in claim 1, wherein the select mechanism includes an array of switches, the array being for selectively placing each of the first electrical contacts in electrical communication with one of the second electrical contacts associated therewith.

4. A system as recited in claim 1, further comprising at least one third electrical contact being in electrical communication with the select mechanism for passing control signals thereto.

5. A system as recited in claim 1, wherein the first and second devices are magnetic transducers coupled to the second electrical contacts, the select mechanism selectively placing the first electrical contacts in electrical communication with the first and/or second device, and further comprising an actuator for controlling a position of the first and second devices and select mechanism relative to the recording medium.

6. A system as recited in claim 5, wherein the first and second substrates together form at least a portion of a magnetic tape head having tape bearing surfaces with planar portions configured to directly engage a magnaic recording tape.

7. A system as recited in claim 6, wherein the planar portions of each tape bearing surface are positioned on opposite sides of each of the magnetic transducers in the direction of travel of the recording medium thereacross, wherein the planar portions of each tape bearing surface lie along a respective common plane.

8. A system as recited in claim 1, further comprising an array of first devices and an array of second devices, the arrays of devices being coupled to the second electrical contacts, the select mechanism selectively placing the first electrical contacts in electrical communication with the array of first devices or the array of second devices.

9. A system as recited in claim 1, wherein the first and second substrates are coupled together and move together along the same side of the recording medium in a cross-track direction.

10. A system as recited in claim 1, wherein media-facing surfaces of the first and second substrates are spaced apart, an air gap being defined therebetween.

11. A system as recited in claim 1, wherein the first and second portions of the device select system are coupled to the first and second devices such that the first and second portions also move with the first and second devices relative to the direction of travel of the recording medium thereacross.

12. A system, comprising:

a first array of devices on a first substrate;

a second array of devices on the first substrate;

an actuator for moving the first and second array in a cross-track direction during operation of the first and second arrays, the cross track direction being perpendicular to longitudinal axes of data tracks on a magnetic medium passing the arrays of devices;

a device select system coupled to the first and second arrays of devices, the device select system comprising;

a first portion having an array of first electrical contacts;

a second portion having an array of second electrical contacts, there being more second electrical contacts than first electrical contacts, the second portion being coupled to the first and second arrays of devices, each of the first electrical contacts being associated with at least two of the second electrical contacts; and

a select mechanism for selectively placing each of the first electrical contacts in electrical communication with one of the second electrical contacts associated therewith, the select mechanism being coupled to the first and second devices such that the select mechanism moves with the first and second devices when the actuator moves the first and second devices.

13. A system as recited in claim 12, wherein the first and second devices are magnetic transducers coupled to the second electrical contacts, the select mechanism selectively placing the first electrical contacts in electrical communication with the first and/or second device, and further comprising an actuator for controlling a position of the first and second devices and select mechanism relative to the magnetic medium.

14. A system as recited in claim 12, wherein planar portions of each tape bearing surface are positioned on opposite sides of each of the devices in a direction of travel of the magnetic medium thereacross, wherein the planar portions of each tape bearing surface lie along a respective common plane.

15. A system as recited in claim 12, wherein the first and second portions of the device select system are coupled to the first and second devices such that the first and second portions also move with the first and second devices relative to a direction of travel of the magnetic medium thereacross.