Apparatus for generating magnetic field in portable wireless terminal for the hearing impaired

• US 20060126873A1
• Filed: 11/01/2005
• Published: 06/15/2006
• Est. Priority Date: 12/14/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Chang-Ki
• Application Number:
  US11/264,182
• Publication Number:
  US 20060126873A1
• Time in Patent Office: Days
• US Class Current: 381/312
• CPC Class Codes: H04R 2225/55 Communication between hearing aids and external devices via a network for data exchange
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils
• CPC Class Codes: H04R 25/558 Remote control, e.g. of amplification, frequency

Abstract

Disclosed is an apparatus for generating a magnetic field in a portable wireless terminal for a hearing impaired person. In the apparatus, an amplifier amplifies a voice-band electric signal received from a CODEC to a predetermined level, and a coil converts the amplified electric signal into a corresponding magnetic signal. The coil is configured to generate the magnetic signal sufficiently enough to allow a hearing impaired user wearing a hearing aid to make and receive calls with the portable wireless terminal.

Claims

1. An apparatus for producing a magnetic field in a portable wireless terminal for use by a hearing impaired user, the apparatus comprising:

an amplifier for amplifying a voice-band electric signal received from a CODEC to a predetermined level; and

a coil for converting the amplified electric signal into a magnetic signal.

2. The apparatus of claim 1, wherein the coil is a telecoil (T-coil) with an impedance of several hundred to several thousand ohms and complies with Hearing Aid Compatibility (HAC) regulations.

3. The apparatus of claim 1, wherein the coil is installed in a predetermined location in proximity to a speaker of the portable wireless terminal to produce the magnetic signal in a direction of a user'"'"'s hearing aid.

4. The apparatus of claim 1, further comprising a speaker with an impedance of several ohms to several tens of ohms, for converting the voice-band electric signal from the CODEC into an audible tone which can be heard by a non-hearing impaired user.

5. The apparatus of claim 1, further comprising:

an attenuator for attenuating the amplified electric signal to a predetermined level; and

a speaker with an impedance of between 2 and 100 ohms, for converting the attenuated electric signal into an audible tone which can be heard by a non-hearing impaired user.

6. An apparatus for producing a magnetic field in a portable wireless terminal for use by a hearing impaired user, the apparatus comprising:

a speaker for converting a voice-band electric signal into an audible tone;

an amplifier for amplifying the voice-band electric signal to a predetermined level; and

a telecoil for converting the amplified electric signal into a magnetic signal.

7. The apparatus of claim 6, wherein the speaker has an impedance of between 2 and 100 ohms.

8. The apparatus of claim 6, wherein the telecoil is a coil with an impedance of between several hundred and several thousand ohms and complies with Hearing Aid Compatibility (HAC) regulations.

9. The apparatus of claim 6, wherein the telecoil is installed in a predetermined location in proximity to the speaker to direct the magnetic signal toward a user'"'"'s hearing aid.

10. An apparatus for producing a magnetic field in a portable wireless terminal for a hearing impaired user, the apparatus comprising:

an amplifier for amplifying a voice-band electric signal to a predetermined level;

a telecoil for converting the amplified electric signal into a magnetic signal;

an attenuator for attenuating the amplified electric signal to a predetermined level; and

a speaker for converting the attenuated electric signal into an audible tone.

11. The apparatus of claim 10, wherein the speaker has an impedance of several to several tens of ohms.

12. The apparatus of claim 10, wherein the telecoil is a coil with an impedance of between several hundred and several thousand ohms and complies with Hearing Aid Compatibility (HAC) regulations.

13. The apparatus of claim 10, wherein the telecoil is installed in a predetermined location in proximity to the speaker to direct the magnetic signal toward a user'"'"'s hearing aid.