Hearing aid compatible device

• US 20050244022A1
• Filed: 04/28/2004
• Published: 11/03/2005
• Est. Priority Date: 04/28/2004
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Muthuswamy, Sivakumar, Ramamurthy, Anupama
• Application Number:
  US10/833,627
• Publication Number:
  US 20050244022A1
• Time in Patent Office: Days
• US Class Current: 381/315
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones
• CPC Class Codes: H04R 2225/025 In the ear hearing aids [ITE] hearing aids
• CPC Class Codes: H04R 25/43 Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics H04R25/407 takes precedence
• CPC Class Codes: H04R 25/48 using constructional means for obtaining a desired frequency response H04R25/652 takes precedence
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils

Abstract

A removable bezel (122) for use with an audio device (120) to enhance operation with a hearing aid (102). The removable bezel (122) has an electromagnetic coil (132) that is coupled to the audio output (124, 304, 404, 406) of the audio device. The electromagnetic coil (132) is either inductively coupled to an acoustic transducer (124) within the audio device (120) or by a direct electrical connection (314). The electromagnetic coil (132) has multiple turns and provides an enhanced magnetic field to a “T-Coil” magnetic pick up (112) within most conventional hearing aids (102). A cellular phone (104) is an example of an audio device used with the present invention. A method for use of the removable bezel (122) is also provided.

Claims

1. A bezel for enhancing inductive coupling to a hearing aid worn by a user, the bezel comprising:

a back side adapted to attach to an electronic device having an acoustic transducer;

a front side; and

a multiple turn electromagnetic coil disposed in proximity to one of the front side and the back side, and positioned to inductively couple to the acoustic transducer and the multiple turn electromagnetic coil positioned to inductively couple to a hearing aid worn by a user when located alongside a face of the user.

2. The bezel according to claim 1, further comprising at least one of a display opening and a keyboard opening, the display opening disposed to allow visual access to a display of the electronic device and the keyboard opening disposed to allow access to a keyboard of the electronic device.

3. The bezel according to claim 1, wherein the multiple turn electromagnetic coil is designed to provide effective coupling to a particular hearing aid design.

4. The bezel according to claim 1, further comprising a cell phone body containing the acoustic transducer, the cell phone body configurable to have an increased current drive to the acoustic transducer so as to induce increased current in the multiple turn electromagnetic coil.

5. A removable bezel for enhancing inductive coupling to a hearing aid worn by a user, the removable bezel comprising:

a back side adapted to attach to an electronic device;

a front side;

a direct electrical connection adapted to connect to an electrical audio signal produced by the electronic device; and

a multiple turn electromagnetic coil, electrically connected to the direct electrical connection, disposed in proximity to one of the front side and the back side, the multiple turn electromagnetic coil positioned to inductively couple to a hearing aid worn by a user when located alongside a face of the user.

6. The removable bezel according to claim 5, wherein the direct electrical connection comprises at least one of a printed circuit board connection, an earplug connection, an external headset connection and an accessory connection.

7. The removable bezel according to claim 5, further comprising at least one of a display opening and a keyboard opening, the display opening disposed to allow visual access to a display of the electronic device and the keyboard opening disposed to allow access to a keyboard of the electronic device.

8. An audio device for enhancing inductive coupling to a hearing aid worn by a user, the audio device comprising:

an enclosure;

an audio processor for producing an analog audio output signal;

a removable bezel adapted to attach to the enclosure; and

a multiple turn electromagnetic coil coupled to the audio processor and disposed in proximity to the removable bezel, the multiple turn electromagnetic coil positioned to inductively couple to a hearing aid worn by a user when located alongside a face of the user.

9. The audio device according to claim 8, further comprising an RF receiver, wherein the audio device comprises a cellular telephone.

10. The audio device according to claim 8, wherein the enclosure further comprises at least one of a display and a keyboard and wherein the removable bezel further comprises at least one opening to allow access to at least one of the display and the keyboard.

11. The audio device according to claim 8, further comprising a side sensor that makes a determination of whether the enclosure is placed on a left ear or a right ear of the user, and wherein the audio processor is communicatively coupled to the side sensor and the audio processor adjusts an output level in response to the determination.

12. The audio device according to claim 8, wherein the multiple turn electromagnetic coil is coupled to the audio processor by a conductive connection.

13. The audio device according to claim 12, wherein the conductive connection is a direct electrical connection that comprises at least one of a printed circuit board connection, an earplug connection, an external headset connection and an accessory connection.

14. A method of providing an electromagnetic coupling between an audio device and a hearing aid, the method comprising:

attaching a removable bezel to an audio device, the audio device comprising an acoustic transducer, the removable bezel comprising a multiple turn electromagnetic coil that is positioned to inductively couple to the acoustic transducer;

locating the removable bezel near a user;

driving the acoustic transducer with an audio signal; and

inductively coupling electromagnetic energy from the multiple turn electromagnetic coil of the removable bezel to a hearing aid worn by the user.

15. The method of claim 14, wherein the locating comprises locating the removable bezel near the face of a user.

16. The method of claim 14, wherein the locating comprises locating the removable bezel near the face of a user, and wherein the inductively coupling electromagnetic energy comprises inductively coupling electromagnetic energy from the multiple turn electromagnetic coil of the removable bezel to a hearing aid worn in an ear of the user.