公开(公告)号：US08493256B2

公开(公告)日：2013-07-23

申请号：US13242719

申请日：2011-09-23

申请人： Niels Ole Knudsen

发明人： Niels Ole Knudsen

IPC分类号： H03M3/02 ,  H03M1/12

CPC分类号： H03M1/002 ,  H03M1/12 ,  H03M3/43 ,  H03M3/458 ,  H03M3/484 ,  H03M3/486 ,  H04R25/505

摘要： In order to minimize noise and current consumption in a hearing aid, an input converter comprising a first voltage transformer and an analog-to-digital converter of the delta-sigma type for a hearing aid is devised. The analog-to-digital converter of the input converter has an input stage, an output stage, and a feedback loop, and the input stage comprises an amplifier (QA) and an integrator (RLF). The first voltage transformer (IT) has a transformation ratio such that it provides an output voltage larger than the input voltage and is placed in the input converter upstream of the input stage. A second voltage transformer (OT) having a transformation ratio such that it provides an output voltage larger than the input voltage, is optionally placed in the feedback loop of the converter. The voltage transformers (IT, OT) are switched-capacitor voltage transformers, each transformer (IT, OT) having at least two capacitors (Ca, Cb, Cc, Cd). The invention further provides a method of converting an analog signal.

摘要翻译： 为了最小化助听器中的噪声和电流消耗，设计了一种包括第一电压互感器和用于助听器的delta-sigma类型的模 - 数转换器的输入转换器。 输入转换器的模数转换器具有输入级，输出级和反馈回路，输入级包括放大器（QA）和积分器（RLF）。 第一变压器（IT）具有变压比，使得它提供大于输入电压的输出电压，并被放置在输入转换器的上游输入级。 具有变压比使得其提供大于输入电压的输出电压的第二变压器（OT）可选地放置在转换器的反馈环路中。 电压互感器（IT，OT）是开关电容器电压互感器，每个变压器（IT，OT）具有至少两个电容器（Ca，Cb，Cc，Cd）。 本发明还提供一种转换模拟信号的方法。

公开(公告)号：US08866661B2

公开(公告)日：2014-10-21

申请号：US13237234

申请日：2011-09-20

申请人： Niels Ole Knudsen ,  Soren Kilsgaard

发明人： Niels Ole Knudsen ,  Soren Kilsgaard

IPC分类号： H03M1/12 ,  H03M3/00 ,  H04R25/00 ,  H03M1/00

CPC分类号： H03M3/486 ,  H03M1/00 ,  H03M3/43 ,  H03M3/454 ,  H04R25/505

摘要： In order to minimize noise and current consumption in an EEG monitoring system (40) which can be continuously carried by a person to be monitored, an input converter (44) for an EEG monitoring system is devised. The analog-to-digital converter of the input converter has an input stage, an output stage, and a feedback loop, and the input stage comprises an amplifier (QA) and an integrator (RLF). A voltage transformer (IT) is placed in the input converter upstream of input stage. The transformation ratio of the voltage transformer (IT) has a transformation ratio such that it provides an output voltage larger than the input voltage, thereby multiplying the signal voltage for the input stage by a fixed factor. The voltage transformer (IT) is a switched-capacitor voltage transformer having at least two capacitors (Cx, Cy, Cz). The invention further provides a method of converting an analog signal, and an EEG monitoring system comprising the input converter (44).

摘要翻译： 为了最小化能够被被监视人持续携带的脑电监测系统（40）中的噪声和电流消耗，设计了用于脑电监测系统的输入转换器（44）。 输入转换器的模数转换器具有输入级，输出级和反馈回路，输入级包括放大器（QA）和积分器（RLF）。 变压器（IT）放置在输入转换器的输入级上游。 变压器（IT）的变压比具有变压比，使得它提供大于输入电压的输出电压，从而将输入级的信号电压乘以固定因子。 电压互感器（IT）是具有至少两个电容器（Cx，Cy，Cz）的开关电容器电压互感器。 本发明还提供了一种转换模拟信号的方法，以及包括输入转换器（44）的EEG监视系统。