公开(公告)号：US20140321682A1

公开(公告)日：2014-10-30

申请号：US13869661

申请日：2013-04-24

Applicant: OTICON A/S ,  BERNAFON AG

Inventor： Andreas KOFOD-HANSEN ,  Svend Oscar PETERSEN ,  Gabriel ALDAZ ,  Gunnar GUDNASON ,  Michael Syskind PEDERSEN ,  Dennis PRESUTTI ,  Björn LEGLER ,  Poul Hilding ANDERSSON ,  Christian MÜLLER ,  Jesko LAMM ,  Monika Bertges REBER

IPC: H04R25/00

CPC classification number: H04R25/30 ,  H04R25/305 ,  H04R25/552 ,  H04R2225/55 ,  H04R2460/03

Abstract: A portable hearing assistance device comprises an input unit, an output unit, a forward path between the input unit and the output unit, and an energy source for energizing components of the hearing assistance device. The hearing assistance device further comprises a control unit to control activation (or deactivation) of a low-power mode of operation of the hearing assistance device. When the low-power mode is activated—the draw of current from said energy source is reduced compared to a normal mode of operation of the device, the activation (or deactivation) being influenced by a combination of at least two different control input signals to the control unit, each control input signal being a signal selected from 1) signals relating to current physical environment, 2) signals relating to current acoustic environment, 3) signals relating to current wearer state, and 4) signals relating to current state or operation mode.

Abstract translation: 便携式听力辅助装置包括输入单元，输出单元，输入单元和输出单元之间的前进路径，以及用于激励助听装置的部件的能量源。 助听装置还包括控制单元，用于控制助听装置的低功率操作模式的激活（或去激活）。 当低功率模式被激活时，与装置的正常工作模式相比，来自所述能量源的电流减小，所述激活（或去激活）受到至少两个不同控制输入信号的组合的影响， 控制单元，每个控制输入信号是选自1）与当前物理环境相关的信号的信号，2）与当前声学环境相关的信号，3）与当前佩戴者状态相关的信号，以及4）与当前状态或操作有关的信号 模式。

公开(公告)号：US20220296166A1

公开(公告)日：2022-09-22

申请号：US17697238

申请日：2022-03-17

Applicant: Oticon A/S

Inventor： Lin ZHU ,  Gunnar GUDNASON ,  Seri JALONEN ,  Xiaodong LIU ,  Peter Søren Kirk HANSEN

IPC: A61B5/00 ,  A61B5/256 ,  H04R25/02

Abstract: A hearing aid includes a plurality of electrode units, where each of the plurality of electrode units includes an electrode configured to provide an electrical stimulation to a user of the hearing aid and/or to measure a bio response signal of the user; a plurality of electrode channel circuits, where each of the plurality of electrode channel circuits includes: an operational amplifier comprising a first input terminal configured to receive the bio response signal and provide an amplified bio response signal, and the operational amplifier includes a first load input; a first DC offset unit configured to reduce the impact of DC offset in the electrode channel circuit of the plurality of electrode channel circuits by receiving a part of the amplified bio response signal and converting it to a feedback current signal which is transmitted to the first load input for providing balanced drain currents in the operational amplifier.

公开(公告)号：US20190165671A1

公开(公告)日：2019-05-30

申请号：US16201236

申请日：2018-11-27

Applicant: Oticon A/S

Inventor： Gunnar GUDNASON ,  Rasmus Glarborg JENSEN ,  Jess CHRISTENSEN ,  Kåre Tais CHRISTENSEN

IPC: H02M1/44 ,  H02M3/06 ,  H04R25/00

Abstract: The disclosure presents a method of operating a switched capacitor voltage converter and a switched capacitor voltage converter, where the switched capacitor voltage converter comprises a power source, a bucket capacitance, an output capacitance with output capacitance terminals to be connected to a load and switches. The power source provides an input voltage and the output capacitance provides an output voltage over the output capacitance terminals. The output voltage is different from the input voltage, i.e higher or lower or of opposite polarity. The switches are configured to provide at least two phases, a bucket capacitance charging phase and a bucket capacitance discharging phase. In case of a voltage up-converter in the bucket capacitance charging phase the bucket capacitance is connected to the power source for charging the bucket capacitance while the bucket capacitance is not connected to the output capacitance. In a voltage down-converter in the bucket capacitance charging phase the bucket capacitance and the output capacitance are connected in series with the power source. In a voltage up-converter in the bucket capacitance discharging phase the bucket capacitance is connected in series with the power source for charging the output capacitance. In a voltage down-converter in the bucket capacitance discharging phase the bucket capacitance and the output capacitance are connected in parallel with each other while being disconnected from the power source. Further, a detection circuit is provided that is configured to monitor the output voltage over the output capacitance terminals and to cause switching of at least one of said switches so as to interrupt charging of the output capacitance when output voltage exceeds a predefined reference voltage.