公开(公告)号：DE602004008962T2

公开(公告)日：2008-05-29

申请号：DE602004008962

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD ,  TERRY JOHN DAVID

IPC: H04R25/00 ,  H04B5/02 ,  H04R5/033

公开(公告)号：AT373401T

公开(公告)日：2007-09-15

申请号：AT04813648

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD ,  TERRY JOHN DAVID

IPC: H04R25/00 ,  H04B5/02 ,  H04R5/033

公开(公告)号：CA2547414A1

公开(公告)日：2005-06-16

申请号：CA2547414

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD ,  TERRY JOHN DAVID

IPC: H04R25/00 ,  H04B5/02 ,  H04R5/033

Abstract: Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. One aspect relates to an apparatus f or use within a communication system that has an inductive coil connected to a tuning capacitor at a node. An amplifier is connected to the node through a DC blocking capacitor to receive an induced signal in the inductive coil in a receive mode. A driver energizes the inductive coil with a driven signal in a transmit mode. According to various embodiments, the apparatus transforms th e inductive coil, the tuning capacitor and the DC blocking capacitor into an equivalent series resonant circuit to reduce an inductive load in the transm it mode, and transforms the inductive coil, the tuning capacitor and the DC blocking capacitor into an equivalent parallel resonant circuit to increase an inductive load in the receive mode.

公开(公告)号：DK1692778T3

公开(公告)日：2010-02-08

申请号：DK04812180

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD

IPC: H04B5/02 ,  H04B5/06 ,  H04R5/033 ,  H04R25/00

公开(公告)号：DE602004024114D1

公开(公告)日：2009-12-24

申请号：DE602004024114

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD

IPC: H04B5/02 ,  H04B5/06 ,  H04R5/033 ,  H04R25/00

Abstract: Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. Various aspects of the present subject matter relate to a communication system. Various embodiments of the communication system include an antenna with a resonant circuit having an inductive coil connected to a tuning capacitor. The communication system includes means to selectively drive the resonant circuit during a transmit mode, and means to selectively receive an induced signal in the resonant circuit during a receive mode. The communication system further includes means to selectively include a frequency shift canceling component in the resonant circuit to provide a first resonance frequency in the resonant circuit in the transmit mode and a second resonance frequency in the resonant circuit in the receive mode such that the first resonance frequency and the second resonance frequency are approximately equal. Other aspects are provided herein.

公开(公告)号：AT448606T

公开(公告)日：2009-11-15

申请号：AT04812180

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD

IPC: H04B5/02 ,  H04B5/06 ,  H04R5/033 ,  H04R25/00

Abstract: Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. Various aspects of the present subject matter relate to a communication system. Various embodiments of the communication system include an antenna with a resonant circuit having an inductive coil connected to a tuning capacitor. The communication system includes means to selectively drive the resonant circuit during a transmit mode, and means to selectively receive an induced signal in the resonant circuit during a receive mode. The communication system further includes means to selectively include a frequency shift canceling component in the resonant circuit to provide a first resonance frequency in the resonant circuit in the transmit mode and a second resonance frequency in the resonant circuit in the receive mode such that the first resonance frequency and the second resonance frequency are approximately equal. Other aspects are provided herein.

公开(公告)号：DK1688016T3

公开(公告)日：2007-11-05

申请号：DK04813648

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD ,  TERRY JOHN DAVID

IPC: H04R25/00 ,  H04B5/02 ,  H04R5/033

公开(公告)号：DE602004008962D1

公开(公告)日：2007-10-25

申请号：DE602004008962

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD ,  TERRY JOHN DAVID

IPC: H04R25/00 ,  H04B5/02 ,  H04R5/033

公开(公告)号：CA2546874A1

公开(公告)日：2005-06-16

申请号：CA2546874

申请日：2004-11-24

Applicant: OTICON AS ,  STARKEY LAB INC

Inventor： ESSABAR MOHAMAD

IPC: H04B5/02 ,  H04B5/06 ,  H04R5/033 ,  H04R25/00

Abstract: Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. Various aspects of the present subject matter relate to a communication system. Various embodiments of the communication system include an antenna with a resonant circuit having an inductive coil connected to a tuning capacitor. The communication system includes means to selectively drive the resonant circuit during a transmit mode, and means to selectively receive an induced signal in the resonant circuit during a receive mode. The communication system further includes means to selectively include a frequency shift canceling component in the resonant circuit to provide a first resonance frequency in the resonant circuit in the transmit mode and a second resonance frequency in the resonant circuit in the receive mode such that the first resonance frequency and the second resonance frequency are approximately equal. Other aspects are provided herein.

公开(公告)号：CA2547414C

公开(公告)日：2010-04-27

申请号：CA2547414

申请日：2004-11-24

Applicant: STARKEY LAB INC ,  OTICON AS

Inventor： ESSABAR MOHAMAD ,  TERRY JOHN DAVID

IPC: H04R25/00 ,  H04B5/02 ,  H04R5/033

Abstract: Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. One aspect relates to an apparatus for use within a communication system that has an inductive coil connected to a tuning capacitor at a node. An amplifier is connected to the node through a DC blocking capacitor to receive an induced signal in the inductive coil in a receive mode. A driver energizes the inductive coil with a driven signal in a transmit mode. According to various embodiments, the apparatus transforms the inductive coil, the tuning capacitor and the DC blocking capacitor into an equivalent series resonant circuit to reduce an inductive load in the transmit mode, and transforms the inductive coil, the tuning capacitor and the DC blocking capacitor into an equivalent parallel resonant circuit to increase an inductive load in the receive mode.