Audio Device with a Stiffening Structure

Patent metadata

Field	Value
Publication number	US-2016014247-A1
Application number	US-201414326699-A
Country	US
Kind code	A1
Filing date	Jul 9, 2014
Priority date	Jul 9, 2014
Publication date	Jan 14, 2016
Grant date	—

Abstract

An apparatus includes a first portion configured to carry one or more components of the apparatus and at least one wall extending between two or more sides of the first portion; an actuator located in the first portion adjacent to the at least one wall; and a movable section on the first portion and configured to be actuated by the actuator. At least the first portion and the movable section define a speaker.

First claim

What is claimed is:

1 . An apparatus, comprising:
a first portion configured to carry one or more components of the apparatus, and at least one wall extending between two or more sides of the first portion; an actuator located in the first portion adjacent to the at least one wall; and a movable section configured to be actuated by the actuator; wherein at least the first portion and the movable section define a speaker.

2 . The apparatus of claim 1 , further comprising a front window over the movable section and through which a user can interact with the apparatus.

3 . The apparatus of claim 1 , wherein the movable section comprises an organic light emitting diode display.

4 . The apparatus of claim 1 , further comprising a flexible suspension between at least a portion of a peripheral edge of the movable section and a second portion of the apparatus.

5 . The apparatus of claim 1 , further comprising an echo cancellation tape between the movable section and the first portion.

6 . The apparatus of claim 1 , further comprising a shield plate mounted within the first portion and integral with the at least one wall.

7 . The apparatus of claim 1 , wherein the first portion is fabricated from one or more of aluminum, aluminum alloy, stainless steel, magnesium, magnesium alloy, titanium, titanium alloy, carbon fiber composite, and ceramic.

8 . The apparatus of claim 1 , wherein the actuator is a piezoelectric actuator.

9 . The apparatus of claim 8 , wherein the piezoelectric actuator is configured to generate a force of about 0.2 N to about 1 N directed to the movable section.

10 . The apparatus of claim 1 , wherein the actuator is centrally located in an upper half of the first portion.

11 . The apparatus of claim 1 , wherein the at least one wall extends between opposing sides of the first portion.

12 . The apparatus of claim 11 , further comprising a second wall of the at least one wall extending perpendicular to a first wall of the at least one wall.

13 . The apparatus of claim 12 , wherein the second wall crosses the first wall adjacent to the actuator.

14 . The apparatus of claim 1 , wherein the at least one wall is configured to direct audio signals within the first portion.

15 . The apparatus of claim 14 , wherein the configuration to direct audio signals within the first portion contributes to flattening of a frequency response.

16 . The apparatus of claim 1 , wherein a space is defined between a top surface of the at least one wall and a back cover located on a back of the first portion.

17 . The apparatus of claim 1 , wherein a height of the at least one wall is variable over a length of the at least one wall.

18 . A method, comprising:
inputting data into a movable section of a mobile device; causing the operation of a controller having a memory and a processor; communicating with a means for receiving a downlink audio signal; and providing the downlink audio signal through a first portion carrying one or more components and at least one wall extending between two or more sides of the first portion.

19 . The method of claim 18 , further comprising processing the downlink audio signal prior to providing the downlink audio signal through the at least one wall to the movable section.

20 . The method of claim 19 , wherein the movable section of the mobile device may define a portion of a panel speaker.

Assignees

• Nokia Corp

Inventors

• Behles Thorsten
• Kemppinen Pasi Tuomo Antero
• Jyrkinen Mikko T

Classifications

• H04R2499/11

  Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's · CPC title

• H04R17/005

  using a piezoelectric polymer · CPC title

• H04M1/035 Primary

  Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities · CPC title

• H04M1/0249

  Details of the mechanical connection between the housing parts or relating to the method of assembly · CPC title

• H04R7/16

  Mounting or tensioning of diaphragms or cones · CPC title