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公开(公告)号：US20220174484A1
公开(公告)日：2022-06-02
申请号：US17538839
申请日：2021-11-30
发明人： Carsten Wulff , Pål Håland
IPC分类号： H04W12/0471 , H04W8/00
摘要： A method of digital radio communication between a first device and a second device is disclosed. An advertising packet is transmitted between first and second devices, wherein the packet includes a first address and a data portion.
Additionally, an encryption key is transmitted between the devices. The first device generates a second address by encrypting an identity value derived from part of the first address using the encryption key and the data portion. The result is encrypted to generate second portion of the second address. The first device then transmits a connection request including the second address. The second device decrypts the second portion and uses the encryption key to determine correspondence with the first portion. If said correspondence is determined, the second device decrypts the first portion using at least the encryption key and compares it to an expected identity value derived from the first address.-
公开(公告)号：US20140191891A1
公开(公告)日：2014-07-10
申请号：US14209496
申请日：2014-03-13
发明人： Carsten Wulff , Ola Bruset , Werner Luzi
IPC分类号： H03M3/00
摘要： An integrated-circuit, continuous-time, sigma-delta analogue-to-digital converter has a single-ended analogue input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analogue input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
摘要翻译： 集成电路，连续时间，Σ-Δ模数转换器具有单端模拟输入，转换器参考输入和接地连接。 该转换器具有一个电阻 - 电容积分器，用于接收单端模拟输入。 积分器包括差分放大器。 转换器还具有连接到积分器的输出的时钟比较器，并且被布置为使得放大器和比较器的参考输入可以保持在从转换器参考输入导出的公共电压的电路。
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公开(公告)号：US11509304B2
公开(公告)日：2022-11-22
申请号：US16644891
申请日：2018-09-06
发明人： Carsten Wulff , Samuli Hallikainen
IPC分类号： G06F1/26 , H03K17/687 , G06F1/3203 , H02J7/00 , H02M3/156 , H03K17/22
摘要： A power supply circuit portion for supplying power comprises a first power rail, a second power rail, first and second output terminals, an energy storage device connected in parallel with the first and second output terminals; and first and second switching portions. The power supply circuit portion has a first mode in which power is supplied to the first and second output terminals by the first and second power rails, and a second mode in which the first switching portion is arranged such that power is not supplied to the first and second output terminals and the second switching portion is arranged to disconnect the energy storage device from the first power rail.
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公开(公告)号：US08947280B2
公开(公告)日：2015-02-03
申请号：US14209496
申请日：2014-03-13
发明人： Carsten Wulff , Ola Bruset , Werner Luzi
IPC分类号： H03M3/00
摘要： An integrated-circuit, continuous-time, sigma-delta analog-to-digital converter has a single-ended analog input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analog input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
摘要翻译： 集成电路，连续时间，Σ-Δ模数转换器具有单端模拟输入，转换器参考输入和接地连接。 该转换器具有电阻 - 电容积分器，用于接收单端模拟输入。 积分器包括差分放大器。 转换器还具有连接到积分器的输出的时钟比较器，并且被布置为使得放大器和比较器的参考输入可以保持在从转换器参考输入导出的公共电压的电路。
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公开(公告)号：US11846695B2
公开(公告)日：2023-12-19
申请号：US17538834
申请日：2021-11-30
IPC分类号： G01S13/08
CPC分类号： G01S13/08
摘要： A method of determining a distance between a radio frequency device and a target is disclosed in which the radio frequency device receives a radio frequency signal from the target. The method comprises determining a time domain channel response from the received radio frequency signal, determining an amplitude of a largest peak in the time domain channel response, determining an amplitude of a second, earlier, peak in the time domain channel response, comparing the second peak amplitude to a threshold based on the largest peak amplitude, identifying the largest peak as a shortest path peak if the second peak amplitude is less than the threshold, identifying the second peak as a shortest path peak if the second peak amplitude is greater than the threshold, and calculating the distance between the radio frequency device and the target based on a time corresponding to the shortest path peak.
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公开(公告)号：US20220171047A1
公开(公告)日：2022-06-02
申请号：US17538834
申请日：2021-11-30
IPC分类号： G01S13/08
摘要： A method of determining a distance between a radio frequency device and a target is disclosed in which the radio frequency device receives a radio frequency signal from the target. The method comprises determining a time domain channel response from the received radio frequency signal, determining an amplitude of a largest peak in the time domain channel response, determining an amplitude of a second, earlier, peak in the time domain channel response, comparing the second peak amplitude to a threshold based on the largest peak amplitude, identifying the largest peak as a shortest path peak if the second peak amplitude is less than the threshold, identifying the second peak as a shortest path peak if the second peak amplitude is greater than the threshold, and calculating the distance between the radio frequency device and the target based on a time corresponding to the shortest path peak.
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公开(公告)号：US09065451B2
公开(公告)日：2015-06-23
申请号：US14106470
申请日：2013-12-13
发明人： Carsten Wulff
CPC分类号： H03L5/00 , H03K17/223
摘要： An integrated power-on reset circuit comprises a resistor and a capacitor, wherein the resistor is arranged to pass a current by quantum tunneling in order to charge the capacitor.
摘要翻译： 集成上电复位电路包括电阻器和电容器，其中电阻器被布置成通过量子隧道传递电流，以便为电容器充电。
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公开(公告)号：US11917402B2
公开(公告)日：2024-02-27
申请号：US17538839
申请日：2021-11-30
发明人： Carsten Wulff , Pål Håland
IPC分类号： H04W12/0471 , H04L9/40 , H04W8/00
CPC分类号： H04W12/0471 , H04L63/0428 , H04L63/0876 , H04W8/005
摘要： A method of digital radio communication between a first device and a second device is disclosed. An advertising packet is transmitted between first and second devices, wherein the packet includes a first address and a data portion. Additionally, an encryption key is transmitted between the devices. The first device generates a second address by encrypting an identity value derived from part of the first address using the encryption key and the data portion. The result is encrypted to generate second portion of the second address. The first device then transmits a connection request including the second address. The second device decrypts the second portion and uses the encryption key to determine correspondence with the first portion. If said correspondence is determined, the second device decrypts the first portion using at least the encryption key and compares it to an expected identity value derived from the first address.
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公开(公告)号：US10727667B2
公开(公告)日：2020-07-28
申请号：US15537631
申请日：2015-12-14
发明人： Tore Austad , Carsten Wulff , Ruben Undheim
摘要： A semiconductor integrated circuit device comprises at least first and second circuits said first and second circuits being connected to a shared external connection. The device further comprises a voltage clamp that is operable to limit a voltage at the shared external connection. The voltage clamp can be selectively enabled depending upon whether the first or second circuit is being used.
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