Hearing aid with a radio frequency receiver

• US 20040022403A1
• Filed: 03/27/2003
• Published: 02/05/2004
• Est. Priority Date: 10/04/2000
• Status: Active Grant

• Current Assignee: Oticon A/S (William Demant Fonden)
• Original Assignee: Oticon A/S (William Demant Fonden)
• Inventors: Ballisager, Lars, Klemmensen, Bjarne
• Granted Patent: US 7,058,191 B2
• Time in Patent Office: Days
• US Class Current: 381/316
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils

Abstract

A hearing aid including a radio frequency receiver, where the receiver includes a single oscillator providing a single crystal oscillator frequency and where means are provided for generating a further number of receiving frequencies by transforming the oscillator frequency to the desired receiving frequencies, where further scanning means are provided for upon activation provide a scanning of the possible frequency area and select a detected frequency superceding a predetermined detector level.

Claims

1. A hearing aid comprising a radio frequency receiver, where the receiver comprises a single crystal oscillator providing a single oscillator frequency and where means are provided for generating a further number of receiving frequencies by transforming the oscillator frequency to the desired receiving frequencies, where further selector means are provided for upon activation provide a scanning of the possible frequency area and select a detected frequency superceding a predetermined detector level.

2. A hearing aid according to claim 1, where a switch is provided on the hearing aid for activating the selector means.

3. A hearing aid according to claim 1, where the receiver is provided as a separate element in connection with the hearing aid housing and where a switch is provided on the separate element for activating the selector means.

4. A hearing aid according to claim 1, where a switch is provided on the hearing aid for activating the selector means and where the selector means are adapted for scanning until the next receiving frequency.

5. A hearing aid according to claim 4, where a switch is provided on the hearing aid for activating the selector means and where the selector means are adapted to, upon registration of an activation pressure having a duration above the predetermined max duration, to continue the scanning until the next frequency providing a signal superceding the predetermined detector level.

9. A method for selecting a frequency in a hearing aid as described in the claim 1-5, or a unit in connection with a hearing aid as defined in any of the claims 6-8, where a switch is provided on the hearing aid or the separate unit for activating the selector means and where the selector means upon activation scans forward in the frequency range until the next receiving frequency.

10. A method according to claim 9, where a switch is provided on the hearing aid or the separate unit for activating the selector means and where the selector means upon registration of an activation having a duration above a predetermined duration, continues the scanning until the next frequency providing a signal superceding the predetermined detector level.

6. A unit for mounting on a hearing aid and comprising a radio frequency receiver, where the receiver comprises a single crystal oscillator providing a single oscillator frequency and where means are provided for generating a further number of receiving frequencies by transforming the oscillator frequency to the desired receiving frequencies, where further selector means are provided for upon activation provide a change of the possible frequency.

7. A unit according to claim 7, where a switch is provided on the unit for activating the selector means and where the selector means are adapted for scanning until the next receiving frequency.

8. A unit according to claim 7 or 9, where a switch is provided on the unit for activating the selector means and where the selector means are adapted to, upon registration of an activation pressure having a duration above a predetermined duration, to continue the scanning until the next frequency providing a signal superceding the predetermined detector level.