Electronic device having a magnetic on-off switch

Patent metadata

Field	Value
Publication number	US-9984802-B2
Application number	US-201615285339-A
Country	US
Kind code	B2
Filing date	Oct 4, 2016
Priority date	Oct 4, 2016
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Embodiments of the present disclosure relate to a headphone or speaker assembly that contains two or more audio components that are configured to be magnetically coupled together by use of a complementary magnetic pole configuration in the headphone or speaker assembly to provide one or more useful functions. These useful functions may include elements that are able to sense that the two or more audio components are in contact with each other, or are at least proximate to each other, so that their audio playback capability can be suspended while they are in this unused state. A sensor located within one of the components can detect a change in the magnetic field and generate an electronic signal indicating a clasped condition.

First claim

The invention claimed is:

1. An electronic device, comprising:
a first electronic component, comprising:
a first device control magnet that has a north pole and a south pole that are aligned along a first direction, wherein the first direction is oriented in a first orientation relative to a first mating surface; and
a first feature formed through a portion of the first device control magnet, wherein the first feature is aligned along a first axis that is oriented relative to the first direction;

a second electronic component, comprising:
a second device control magnet that has a north pole and a south pole that are aligned in a second direction, wherein the north pole and the south pole of the second device control magnet are oriented in a second orientation relative to a second mating surface, and the first and the second device control magnets are attracted to each other when the first and the second mating surfaces are disposed proximate to each other; and

a sensor disposed within the first feature, wherein the sensor is configured to detect a change in a magnetic field passing through the first feature.

2. The electronic device of claim 1 , wherein the first axis is substantially parallel to the first direction.

3. The electronic device of claim 1 , further comprising:
a processor that is configured to halt the delivery of audio information provided from a speaker within the first electronic component or the second electronic component in response to detecting the change in magnetic field.

4. The electronic device of claim 1 , wherein the first device control magnet is a programmable magnet.

5. The electronic device of claim 1 , wherein the sensor is configured to detect changes in a magnitude or a direction of a portion of a magnetic field that passes parallel to a measurement axis of the sensor, wherein the measurement axis is parallel to the first axis.

6. The electronic device of claim 1 , wherein
the first electronic component further comprises a first backing element that is disposed between the first device control magnet and a first body of the first electronic component, and
the second electronic component further comprises a second backing element that is disposed between the second device control magnet and a first body of the second electronic component.

7. The electronic device of claim 6 , wherein the first backing element and the second backing element are formed from a ferrous metal.

8. The electronic device of claim 1 , wherein the first feature is not coincident with an edge of the first device control magnet.

9. The electronic device of claim 1 , wherein the first feature is a substantially semicircular notch disposed within the first device control magnet.

10. The electronic device of claim 1 , wherein when the first and the second mating surfaces are disposed proximate to each other the first and the second mating surfaces are placed in physical contact with each other, and the distance between the first device control magnet and the second device control magnet when the first and the second mating surfaces are positioned to contact each other is less than 1 mm.

11. The electronic device of claim 1 , wherein the first device control magnet and the second device control magnet exert a magnetic force of at least 100 grams-force when the first and the second mating surfaces are disposed proximate to each other.

12. An electronic device, comprising:
a first audio component capable of generating a first acoustic output, comprising:
a first device control magnet that has a north pole and a south pole that are aligned in a first direction, wherein the first direction is oriented in a first orientation relative to a first mating surface;
a first backing element, disposed substantially along a back surface of the first device control magnet; and
a first feature formed through a portion of the first device control magnet, wherein the first feature is aligned along a first axis that is oriented relative to the first direction;

a second audio component capable of generating a second acoustic output, comprising:
a second device control magnet that has a north pole and a south pole that are aligned in a second direction, wherein the north pole and the south pole of the second device control magnet are oriented in a second orientation relative to a second mating surface, and the first and the second device control magnets are attracted to each other when the first and the second mating surfaces are disposed proximate to each other;
a second backing element, disposed substantially along a back surface of the second device control magnet; and

a sensor disposed within the first feature, wherein the sensor is configured to detect a change in a magnetic field passing through the first feature.

13. The electronic device of claim 12 , wherein the first axis is substantially parallel to the first direction.

14. The electronic device of claim 12 , further comprising:
a processor that is configured to halt the delivery of audio information provided from a speaker within the first audio component or the second audio component in response to detecting the change in magnetic field.

15. The electronic device of claim 12 , wherein the first device control magnet is a programmable magnet.

16. The electronic device of claim 12 , wherein the sensor is configured to detect changes in a magnitude or a direction of a portion of a magnetic field that passes parallel to a measurement axis of the sensor, wherein the measurement axis is parallel to the first axis.

17. The electronic device of claim 12 , wherein the first backing element and the second backing element are formed from a ferrous metal.

18. The electronic device of claim 12 , wherein the first feature is located substantially away from the edges of the first device control magnet.

19. The electronic device of claim 12 , wherein the first feature is a substantially semicircular notch disposed within the first device control magnet.

Assignees

• Logitech Europe Sa
• Logitech Europe Sa

Inventors

• Danielson Alexander S
• Carlson Jr Thomas Henry
• Carmichael William Christopher

Classifications

• H04R9/025

  Magnetic circuit · CPC title

• H04R29/003

  of the moving-coil type · CPC title

• G01D5/145

  influenced by the relative movement between the Hall device and magnetic fields (see G01R33/06) · CPC title

• H04R1/10

  Earpieces; Attachments therefor {; Earphones; Monophonic headphones (H04R1/28 takes precedence; stereophonic headphones H04R5/033)} · CPC title

• G01B7/14

  for measuring distance or clearance between spaced objects or spaced apertures (G01B7/30 takes precedence) · CPC title