APPARATUS FOR VENTED HEARING ASSISTANCE SYSTEMS

    公开(公告)号:CA2626188A1

    公开(公告)日:2008-09-19

    申请号:CA2626188

    申请日:2008-03-18

    Abstract: The present application relates to vented earmolds for hearing assistance devices. Some vented earmolds include a first vent and a second vent to provide acoustic benefits to the user. Such benefits include the reduction of the occlusion effect and reduction of high frequency acoustic feedback. Various embodiments provide wireless and wired designs.

    63.
    发明专利
    未知

    公开(公告)号:DE602004011558D1

    公开(公告)日:2008-03-13

    申请号:DE602004011558

    申请日:2004-11-24

    Inventor: TERRY JOHN DAVID

    Abstract: An automatic gain control provides for enhanced acquisition and tracking of wireless signals. The wireless signals may include signals using electrostatic fields, magnetic fields, or electromagnetic fields. In an embodiment, wireless signals are provided as radio frequency signals. The automatic gain control design is intended to quickly acquire new incoming information in a wireless signal. A control unit regulates the automatic gain control to manage the acquisition and gain of the wireless signal based on a transmission protocol. The automatic gain control adjusts the gain for the wireless signal to a minimal level required for detection for a preprogrammed amount of time, at the same time minimizing unwanted background noise from interfering with the data packet. When the communication session is concluded, the automatic gain control can be released allowing increased sensitivity in preparation of the next transmission.

    SYSTEM FOR EVALUATING HEARING ASSISTANCE DEVICE SETTINGS USING DETECTED SOUND ENVIRONMENT

    公开(公告)号:CA2581641A1

    公开(公告)日:2007-09-14

    申请号:CA2581641

    申请日:2007-03-13

    Abstract: The present subject matter provides method and apparatus for hearing assistance devices, and more particularly to a system for evaluating hearing assistance device settings using detected sound environment. Various example s of a hearing assistance device and method using actual use and hypothetical use logs are provided. Such logs provide a dispenser or audiologist the ability to see how a device is operating with actual settings and how the device would have operated had hypothetical settings been used instead. In various examples, t he system allows for collection of statistical information about actual and hypothetical use which can assist in parameter setting determinations for a specific user. The settings may be tailored to that user's commonly experienced sound environment. Wireless communications of usage logs is discussed. Additional method and apparatus can be found in the specification and as provided by the attached claims and their equivalents.

    AUTOMATIC GAIN CONTROL WITH OUT OF BAND BLOCKING SIGNAL COMPENSATION

    公开(公告)号:CA2563093A1

    公开(公告)日:2007-04-07

    申请号:CA2563093

    申请日:2006-10-10

    Inventor: SOLUM JEFFREY P

    Abstract: One embodiment of the present subject matter includes a method of receiving an input signal. The method, in various embodiments, includes detecting a peak of the input signal and detecting an envelope of the input signal. In various embodiments , the peak and envelope are used to identify out-of-band blocking signals and to adjust gain control. The method also includes comparing the peak to a first threshold Tp and comparing the envelope to a second threshold Te. In the method, if the peak is above the first threshold and the envelope is below the second threshold, then ignoring the input signal. If the envelope is above the second threshold, the method includes applying automat ic gain control to decode information encoded in the input signal.

    PROGRAMMABLE AUTOMATIC GAIN CONTROL ACCORDING TO TRANSMISSION PROTOCOLS

    公开(公告)号:CA2546893A1

    公开(公告)日:2005-06-16

    申请号:CA2546893

    申请日:2004-11-24

    Inventor: TERRY JOHN DAVID

    Abstract: An automatic gain control provides for enhanced acquisition and tracking of wireless signals. The wireless signals may include signals using electrostatic fields, magnetic fields, or electromagnetic fields. In an embodiment, wireless signals are provided as radio frequency signals. The automatic gain control design is intended to quickly acquire new incoming information in a wireless signal. A control unit regulates the automatic gain control to manage the acquisition and gain of the wireless signal based on a transmission protocol. The automatic gain control adjusts the gain for the wireless signal to a minimal level required for detection for a preprogrammed amount of time, at the same time minimizing unwanted background noise from interfering with the data packet. When the communication session is concluded, the automatic gain control can be released allowing increased sensitivity in preparation of the next transmission.

    RESONANCE FREQUENCY SHIFT CANCELING IN WIRELESS HEARING AIDS

    公开(公告)号:CA2546874A1

    公开(公告)日:2005-06-16

    申请号:CA2546874

    申请日:2004-11-24

    Inventor: ESSABAR MOHAMAD

    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.

    70.
    发明专利
    未知

    公开(公告)号:DE60018084D1

    公开(公告)日:2005-03-17

    申请号:DE60018084

    申请日:2000-09-08

    Inventor: WOODS S

    Abstract: Systems, devices, and methods are provided to inhibit at least one feedback component of an input audio signal by adjusting a feedback-inhibiting filter through a narrowband subaudible signal. The level of the signal may be determined using an audibility model so as to yield its subaudible quality.

Patent Agency Ranking