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1.发明申请公开(公告)号：US20250024380A1
公开(公告)日：2025-01-16
申请号：US18357329
申请日：2023-07-24
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter
Abstract: In one aspect, a method includes: detecting, in a receiver of a wireless device, an energy of a first wireless channel; determining whether the detected energy is within a range between a first threshold and a second threshold; and in response to determining that the detected energy is within the range, transmitting, from a transmitter of the wireless device, a first radio frequency (RF) signal within the first wireless channel at a power level less than a maximum power level.
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公开(公告)号：US12040924B1
公开(公告)日：2024-07-16
申请号：US18172913
申请日：2023-02-22
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter , Robert Gorday
IPC: H04L27/22 , H03H7/00 , H04L27/233
CPC classification number: H04L27/2334 , H04L27/2335
Abstract: A cluster correlator may be configured with: a first stage comprising a set of first correlators to correlate samples of an input signal with a first predetermined pattern and output an output sample, the set of first correlators to output a sample cluster corresponding to the output sample of the set of first correlators during a switching cycle of the first stage; a filter coupled to an output of the first stage to receive the sample cluster and to produce a processed output sample based on the sample cluster; and a second stage comprising at least one second correlator to receive a processed output sample from the filter and correlate the processed output sample with a second predetermined pattern, and output one or more correlation outputs during a switching cycle of the second stage.
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公开(公告)号：US20230421192A1
公开(公告)日：2023-12-28
申请号：US17897652
申请日：2022-08-29
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter , Thomas Edward Voor , Jeffrey L. Sonntag
Abstract: In one aspect, a method comprises: initializing a front end circuit of a wireless device into a first mode in which a radio frequency (RF) signal processing path comprises a low noise amplifier (LNA) having an output coupled to an RF filter; and in response to an RF signal received in the front end circuit having a level greater than a first threshold, reconfiguring the front end circuit into a second mode in which the RF filter is coupled to an input of the LNA.
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公开(公告)号：US10911129B1
公开(公告)日：2021-02-02
申请号：US16711824
申请日：2019-12-12
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter , Antonio Torrini , Yan Zhou , David Trager
IPC: H04B7/10 , H04B7/08 , H04B17/318
Abstract: In one embodiment, an apparatus includes: an antenna switch to receive a first radio frequency (RF) signal from a first antenna and a second RF signal from a second antenna and controllable to output a selected one of the first and second RF signals; an RF circuit to receive and process the first and second RF signals; at least one mixer to downconvert the first and second RF signals to first and second baseband signals; and an antenna diversity control circuit to receive sub-symbol portions of a first plurality of symbols of the first baseband signal and sub-symbol portions of a second plurality of symbols of the second baseband signal, and control the antenna switch to output one of the first and second RF signals, based at least in part on one or more of the sub-symbol portions of the first and second pluralities of symbols.
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公开(公告)号：US20230421194A1
公开(公告)日：2023-12-28
申请号：US17897620
申请日：2022-08-29
Applicant: Silicon Laboratories Inc.
Inventor： Thomas Edward Voor , Jeffrey L. Sonntag , Richard Hendricks , Logan Lucas , Hendricus De Ruijter , Luigi Panseri
CPC classification number: H04B1/18 , H04B1/10 , H04B1/1607
Abstract: In one aspect, an apparatus includes a receive path to receive, process and output a receive radio frequency (RF) signal, the receive path comprising at least one low noise amplifier (LNA) and a plurality of signal nodes. The receive path may be configurable to operate in a plurality of modes. The apparatus also may include at least one filter to filter the receive RF signal and at least one detector circuit to detect one or more levels present at one or more of the plurality of signal nodes. The apparatus may configure an order of the at least one LNA and the at least one filter, based at least in part on the one or more levels detected in the at least one detector circuit.
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Patent Agency Ranking
公开(公告)号：US12255678B2
公开(公告)日：2025-03-18
申请号：US17897693
申请日：2022-08-29
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter , Thomas Edward Voor , Jeffrey L. Sonntag
Abstract: In one aspect, a method comprises: receiving, in a controller of a wireless device, at least one of a first interrupt or a second interrupt, where: the first interrupt is to indicate that a receive radio frequency (RF) signal received in a front end circuit of the wireless device is overloading at least a low noise amplifier (LNA) of the front end circuit; and the second interrupt is to indicate that the receive RF signal is overloading at least a passive network of a system on chip (SoC) of the wireless device; and in response to the at least one of the first interrupt or the second interrupt, reconfiguring the front end circuit from a first mode into a second mode, where a relative order of a receiver RF signal processing path is different in the first mode than in the second mode.
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公开(公告)号：US20230421193A1
公开(公告)日：2023-12-28
申请号：US17897671
申请日：2022-08-29
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter , Thomas Edward Voor , Jeffrey L. Sonntag
IPC: H04B1/16
CPC classification number: H04B1/16
Abstract: In one aspect, a method comprises: reconfiguring a front end circuit of a device from a first mode having a receiver radio frequency (RF) signal processing path with a first relative order into a second mode having the receiver RF signal processing path with a different relative order; determining that a timeout period has completed; and reconfiguring the front end circuit from the second mode to the first mode in response to determining that the timeout period has completed.
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公开(公告)号：US20230421183A1
公开(公告)日：2023-12-28
申请号：US17897706
申请日：2022-08-29
Applicant: Silicon Laboratories Inc.
Inventor： Thomas Edward Voor , Hendricus De Ruijter , Richard Hendricks
IPC: H04B1/04
CPC classification number: H04B1/04 , H04B2001/0408
Abstract: In one aspect, an apparatus comprises a transmit path including a power amplifier to receive, process and output a transmit radio frequency (RF) signal the transmit path comprising a power amplifier. A detection circuit coupled to the transmit path may be configured to: detect, during a first portion of a packet of the transmit RF signal, a level of the transmit RF signal at an input to the power amplifier; and detect, during a second portion of the packet of the transmit RF signal the level of the transmit RF signal at an output of the power amplifier. Based at least in part on the detected level at at least one of the power amplifier input or output, a level of at least one component of the transmit path upstream to the power amplifier is to be updated, to control a transmit power variation of the transmit RF signal.
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公开(公告)号：US20250031094A1
公开(公告)日：2025-01-23
申请号：US18236184
申请日：2023-08-21
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter , Terry Dickey , Wentao Li , Bryan Murawski , Marius Munder
Abstract: A technique for adding a new information rate to a legacy physical interface of a communications system includes using a rate switch packet including a distinct rate select start-of-frame delimiter that indicates a newly defined physical interface packet. The rate switch packet uses the same modulation scheme as a base rate packet (e.g., a packet using an information rate defined by a standard communications protocol) and the same preamble pattern as the base rate packet. The preamble length of the rate switch packet can be the same as or different from the preamble length of the base rate packet. An embodiment uses antenna diversity by selecting the antenna in the rate switch packet and using the selected antenna to receive an adjusted rate packet. Additional rate switch start-of-frame delimiters can be used to indicate more than one adjusted rate packet, e.g., to support multiple adjusted information rates.
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公开(公告)号：US20240178870A1
公开(公告)日：2024-05-30
申请号：US18060117
申请日：2022-11-30
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus De Ruijter
IPC: H04B1/18
CPC classification number: H04B1/18 , H04B2001/0425
Abstract: In one example, a receiver includes: a front end circuit to convert a radio frequency (RF) input signal into at least one frequency signal; a non-linear circuit coupled to the front end circuit, the non-linear circuit to generate at least one shaped frequency signal from the at least one frequency signal according to at least one non-linear transfer function; and a modulation signal detector coupled to the non-linear circuit to output a likelihood signal based on the at least one shaped frequency signal.
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