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1. 发明授权

US12101027B2 Bulk switching circuitry 有权
公开(公告)号：US12101027B2
公开(公告)日：2024-09-24
申请号：US17750932
申请日：2022-05-23
申请人： Nordic Semiconductor ASA
发明人： Daniel Pasti Mioni , Jarmo Väänänen
IPC分类号： H02M3/156 , H01L27/02 , H02M3/158 , H03K17/687
CPC分类号： H02M3/1566 , H01L27/0266 , H02M3/158 , H03K17/6871
摘要： According to an aspect, there is provided an apparatus comprising: a bulk-controlled switch circuit comprising a first transistor coupled to a load and having a source coupled to a source voltage and a drain coupled to a drain voltage, a second transistor and a third transistor coupled, in parallel with the first transistor, to one another in series between the source voltage and the drain voltage, wherein a bulk of the first transistor is coupled with bulks of the second transistor and the third transistor, wherein a gate of the second transistor is coupled to the source voltage via a first impedance circuit and a gate of the third transistor is coupled to the drain voltage via a second impedance circuit to form a comparator switch controlled by the source voltage and the drain voltage and to dynamically switch a greater one of the source voltage and the drain voltage to the load; a first current generator circuit and a second current generator circuit; a first current mirror circuit biased by the first current generator circuit, responsive to the source voltage, and configured to trigger the second transistor to couple the source voltage to the load when the source voltage is above the drain voltage; a second current mirror circuit biased by the second current generator circuit, responsive to the drain voltage, and configured to trigger the third transistor to couple the drain voltage to the load when the drain voltage is above the source voltage.

2. 发明公开

US20240302853A1 CURRENT-GENERATION CIRCUITRY 审中-公开
公开(公告)号：US20240302853A1
公开(公告)日：2024-09-12
申请号：US18597509
申请日：2024-03-06
申请人： Nordic Semiconductor ASA
发明人： Dominik PRZYBOROWSKI , Vimesha SAMARASEKARA
IPC分类号： G05F1/567
CPC分类号： G05F1/567
摘要： A circuit portion for generating a current that is proportional to absolute temperature comprises first and second bipolar-junction transistors (BJTs) arranged to present a voltage difference between the emitter of the first BJT and the emitter of the second BJT that is proportional to absolute temperature. Circuitry is arranged to generate an output current in dependence on this voltage difference, wherein the output current is proportional to absolute temperature. Adjustment circuitry is electrically coupled to the base of the second BJT to sink current away from this base such that a temperature coefficient of the output current is at least partly determined by the adjustment circuitry.

3. 发明授权

US12081377B2 Demodulating modulated signals 有权
公开(公告)号：US12081377B2
公开(公告)日：2024-09-03
申请号：US18010432
申请日：2021-06-16
申请人： Nordic Semiconductor ASA
发明人： Daniel Ryan
IPC分类号： H04L27/144
CPC分类号： H04L27/144
摘要： An apparatus for demodulating a frequency-modulated signal comprises a joint frequency-offset & modulation-index estimator, and a signal demodulator. The joint estimator receives data representative of a preamble portion of the signal, modulated with predetermined preamble data. It jointly determines a frequency-offset estimate and a modulation-index estimate by using an optimization process that minimizes a cost function that is a function of the received data and that is parameterised by a frequency-offset parameter and by a modulation-index parameter. The signal demodulator receives data representative of a message portion of the signal, modulated with message data, and uses the frequency-offset estimate to demodulate the message.

4. 发明公开

US20240284558A1 RADIO COMMUNICATION 审中-公开
公开(公告)号：US20240284558A1
公开(公告)日：2024-08-22
申请号：US18442455
申请日：2024-02-15
申请人： Nordic Semiconductor ASA
发明人： Asbjørn SÆBØ , Vinayak Kariappa CHETTIMADA , Emil GYDESEN
IPC分类号： H04W76/45
CPC分类号： H04W76/45
摘要： A method of operating a radio communication system comprising a group of radio devices is provided. The method comprises a first radio device of the group broadcasting a radio signal in which data are encoded; radio devices of the group receiving the radio signal from the first radio device and decoding the data encoded therein; and a second radio device of the group broadcasting a radio signal in which data are encoded; coordinating at least one radio device of the group to transition from receiving the radio signal broadcast by the first radio device and decoding the data encoded therein to receiving the radio signal broadcast by the second radio device of the group and decoding the data encoded therein; and radio devices of the group receiving the radio signal from the second radio device and decoding the data encoded therein.

5. 发明公开

US20240267211A1 DEVICE IDENTITY KEYS 审中-公开
公开(公告)号：US20240267211A1
公开(公告)日：2024-08-08
申请号：US18566572
申请日：2022-05-27
申请人： Nordic Semiconductor ASA
发明人： Krishna SHINGALA
IPC分类号： H04L9/08 , G06F21/57 , H04L9/14 , H04L9/30 , H04L9/32
CPC分类号： H04L9/0866 , G06F21/575 , H04L9/0894 , H04L9/14 , H04L9/30 , H04L9/3278 , G06F2221/034
摘要： An integrated-circuit device comprises a processor, a program memory, a hardware-based key generation system that outputs a selectable device identity key of a plurality of predetermined device identity keys, and a one-time programmable (OTP) memory for storing one or more public cryptographic keys. When a public cryptographic key is stored in the OTP memory, and when software is stored in the program memory, the device uses the public cryptographic key to determine whether the software stored in the program memory is validly signed by a private cryptographic key associated with the public cryptographic key, before the software is executed by the processor. The device controls which device identity key of the plurality of predetermined device identity keys is output by the hardware-based key generation system at least partly in dependence on the outcome of this determination.

6. 发明公开

US20240244395A1 DEVICE LOCATIONS USING MACHINE LEARNING 审中-公开
公开(公告)号：US20240244395A1
公开(公告)日：2024-07-18
申请号：US18290276
申请日：2022-05-11
申请人： Nordic Semiconductor ASA
发明人： Erik Vincent Røgenes ROBSTAD , Carsten WULFF
IPC分类号： H04W4/02 , G06N20/00
CPC分类号： H04W4/023 , G06N20/00
摘要： A method of determining device locations includes receiving a set of candidate locations in an environment and generating training data representing synthetic distance measurements between pairs of the candidate locations. The synthetic distance measurements are generated by applying random variations to the geometric distances between the candidate locations. The training data and candidate locations are used to train a machine learning model. A set of measured distances between devices are input to the trained learning model, which is used to determine a respective location in the environment of each of the devices.

7. 发明授权

US11990910B2 Control of bias current to a load 有权
公开(公告)号：US11990910B2
公开(公告)日：2024-05-21
申请号：US17729844
申请日：2022-04-26
申请人： Nordic Semiconductor ASA
发明人： Harald Garvik
IPC分类号： H03K3/00 , H03K3/353 , H03K5/01 , H03K5/02
CPC分类号： H03K3/353 , H03K5/01 , H03K5/023
摘要： A circuit portion comprises a load circuit portion and a bias circuit portion. The load circuit portion comprises a load transistor. The bias circuit portion comprises a replica transistor matched to the load transistor and connected to the load transistor at a node such that when a current flows through the replica transistor, a current proportional to the current through the replica transistor flows through the load transistor. The bias circuit portion also comprises a current input for receiving an input current, a supply voltage input for receiving a supply voltage, and a feedback loop arranged to: adjust a voltage at the node connecting the replica transistor and the load transistor such that the replica transistor conducts a current proportional to the input current, and counteract variations in the voltage at the node connecting the replica transistor and the load transistor arising from changes in the supply voltage.

8. 发明授权

US11968622B2 Intelligent power saving 有权
公开(公告)号：US11968622B2
公开(公告)日：2024-04-23
申请号：US17834609
申请日：2022-06-07
申请人： Nordic Semiconductor ASA
发明人： Chaitanya Tata
IPC分类号： H04W24/00 , H04L43/0894 , H04L43/10 , H04L43/16 , H04W24/10 , H04W52/02 , H04W80/00 , H04W84/12
CPC分类号： H04W52/0225 , H04L43/0894 , H04L43/10 , H04L43/16 , H04W24/10 , H04W52/0216 , H04W52/0248 , H04W80/00 , H04W84/12 , Y02D30/70
摘要： A device comprising: a transceiver operable in a first or second mode and configured to receive packets from a remote device, each packet comprising an indication of whether or not the remote device has a further packet to transmit, wherein: in the first mode the transceiver: (i) sends a polling message in response to receiving the indication of a further packet for transmission; and (ii) listens for that further packet; and in the second mode the transceiver: (i) does not send a polling message in response to receiving the indication of a further packet for transmission; and (ii) listens for packets regardless of whether a received packet indicates that there is a further packet to transmit or not; and a controller configured to monitor an activity level for the transceiver and cause the transceiver to operate in the first or second mode in dependence on the activity level.

9. 发明公开

US20240120959A1 MULTIBAND RADIO RECEIVERS 审中-公开
公开(公告)号：US20240120959A1
公开(公告)日：2024-04-11
申请号：US18273257
申请日：2022-01-24
申请人： Nordic Semiconductor ASA
发明人： Pete SIVONEN , Jarkko JUSSILA
IPC分类号： H04B1/28 , H03D7/14 , H03D7/16
CPC分类号： H04B1/28 , H03D7/1466 , H03D7/165
摘要： A configurable radio frequency receiver is provided. The receiver has at least one low noise amplifier; an oscillator arrangement for producing a plurality of signals having a first number or a second number of separate phases; and multiple mixer modules having inputs connected to an output of the low noise amplifier. The receiver has a configurable resistor network. The receiver is configured such that it can operate in a first mode with said plurality of signals having said first number of phases or a second mode with said plurality of signals having said second number of phases. The configurable resistor network enables the receiver to operate in the first mode in a first configuration, and the second mode in a second configuration. The mixer modules are employed during the operation of the first mode and the second mode.

10. 发明授权

US11909414B2 Control of analogue to digital converters 有权
公开(公告)号：US11909414B2
公开(公告)日：2024-02-20
申请号：US17824108
申请日：2022-05-25
申请人： Nordic Semiconductor ASA
发明人： Henrik Fon , Tor Øyvind Vedal
IPC分类号： H03M1/12 , H03M1/38 , H03K19/17736
CPC分类号： H03M1/38 , H03K19/1774 , H03M1/125
摘要： A circuit portion comprising a clock domain is disclosed. A first clock is arranged to clock components in the clock domain. An analogue to digital converter is clocked by a second clock with a duty cycle. The second clock is derived from the first clock. The analogue to digital converter is arranged to output a feedback signal upon finishing a conversion of a sample, and the feedback signal is arranged to control the duty cycle.

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