Hearing aid with a radio frequency receiver

• US 7,058,191 B2
• Filed: 10/04/2001
• Issued: 06/06/2006
• Est. Priority Date: 10/04/2000
• Status: Expired due to Fees

• Current Assignee: Oticon A/S (William Demant Fonden)
• Original Assignee: Oticon A/S (William Demant Fonden)
• Inventors: Ballisager, Lars, Klemmensen, Bjarne
• Primary Examiner(s): Le, Huyen D.
• Application Number:
  US10/381,694
• Publication Number:
  US 20040022403A1
• Time in Patent Office: 1,706 Days
• Field of Search: 381/23.1, 381/312, 381/314, 381/315, 381/316, 381320-323, 455/150.1, 455/154.1, 455/154.2, 455/161.1, 455/161.3, 455/260, 455/264, 455/265, 455/255, 455/76
• US Class Current: 381/312
• 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 a plurality of desired receiving frequencies, where a switch is provided on the hearing aid for activating further selector means, which upon activation provide a scanning of a possible frequency area and a selection of a detected frequency living up to a required signal strength.

2. A hearing aid according to claim 1, where the selector means are adapted for scanning until a next receiving frequency.

3. A hearing aid according to claim 2, where the selector means are adapted to, upon registration of an activation pressure having a duration above a predetermined max duration, to continue the scanning until the next frequency providing a signal living up to a required signal strength.

4. A method for selecting a frequency in the hearing aid as defined in claim 1, where the switch is provided on the hearing aid for activating the selector means for selecting a detected frequency living up to a required signal strength and where the selector means upon activation scans forward in a frequency range until a next receiving frequency.

5. A method according to claim 4, where the selector means upon registration of an activation having a duration above a predetermined duration, continues the scanning until a next frequency providing a signal living up to a required signal strength