Transmission of acoustic vibrations to a surface over the display of a mobile device

• US 20060239479A1
• Filed: 05/03/2004
• Published: 10/26/2006
• Est. Priority Date: 05/06/2003
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Van Delden, Martinus Hermanus Wilhelmus Maria, Schobben, Daniel Willem Elisabeth
• Application Number:
  US10/555,257
• Publication Number:
  US 20060239479A1
• Time in Patent Office: Days
• US Class Current: 381/306
• CPC Class Codes: H04M 1/0266 for a display module assembly
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
• CPC Class Codes: H04M 1/6033 for providing handsfree use or a loudspeaker mode in telephone sets arrangements for preventing acoustic echo H04M9/08
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04R 7/045 using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion

Abstract

Mobile device having a sound generating means and a display. The mobile device (1) comprises a display (2) with means (3) for acoustically exciting the display or a part of the display. In order to increase the sound volume, particularly at low frequencies, the mobile device is arranged such that when the mobile device is positioned on a table top as defined in this application, the sound volume at a frequency between 0.5 kHz and 1.5 kHz at a 1 meter'"'"'s distance from the mobile device is increased by at least 6 dB as compared to the same device when used in air.

Claims

1. Mobile device having a sound generating means and a display, characterized in that the mobile device (1) comprises a display (2) with means (3) for acoustically exciting the display or a part of the display, the mobile device being arranged such that when the mobile device is positioned on a table top as defined in this application, the sound volume at a frequency between 0.5 kHz and 1.5 kHz at a 1 meter'"'"'s distance from the mobile device is increased by at least 6 dB as compared to the same device when used in air.

2. Mobile device as claimed in claim 1 characterized in that the sound level increase is at least 15 dB.

3. Mobile device as claimed in claim 1, characterized in that the sound level increase is at least 20 dB.

4. Mobile device as claimed in claim 1, characterized in that the sound intensity is increased by at least 6 dB throughout the range of frequencies between 0.5 kHz and 1.5 kHz.

5. Mobile device as claimed in claim 1, characterized in that the mobile device is provided with a mechanical coupling means (4).

6. Mobile device as claimed in claim 4, characterized in that the mechanical coupling is arranged for, establishing an attractive force (F) between a flat surface and the mobile device when positioned on a flat surface.

7. Mobile device as claimed in claim 5, characterized in that the mechanical coupling means is a suction cup (4).

8. Mobile device as claimed in claim 5, characterized in that the mobile device comprises one or more magnets (7, 5).

9. Mobile device as claimed in claim 4, characterized in that the mechanical coupling means is a flexible ring comprising hard parts (5).

10. Mobile device as claimed in claim 1 comprising an acoustic adapter.

11. Acoustic adapter for use in a mobile device as claimed in claim 10.

13. Mobile device as claimed in claim 1, characterized in that the mobile device is provided with a sound recording element and the mobile device comprises a means to establish a comparison between a registered sound and an emitted sound signal and means to indicate that the mobile device is co-vibrating with a further object.

12. Mobile device having a sound generating means and a display, characterized in that the mobile device comprises a display (2) with means (3) for acoustically exciting the display, the mobile device comprises two parts (1A, 1B) separated by a hinge (1C), one (1A) of the these parts comprising the display, and the mobile device comprises an acoustic coupler (4) such that when the device is closed the sound intensity is increased compared to when the device is opened.