Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: Methods and wireless communication devices for notifying a peer device about duty cycle transmission budget exhaustion. An embodiment transmits a first data frame carrying a power management bit to a peer device when a transmission budget is about to be exhausted, updates the transmission budget over time, and transmits a second data frame carrying a power management bit to the peer device to resume communication according to the updated transmission budget. Another embodiment inserts a Restricted access window Parameter Set (RPS) Information Element (IE) into a beacon frame to reserve a time slice when a transmission budget is about to be exhausted and transmits the beacon frame on a wireless channel to notify peer devices transmission on the wireless channel in the time slice is prohibited.

Abstract: A chip brush assembly includes a main body defining longitudinal and transverse axes defining a plane. The body has a central portion extending in the plane and at least two slots extend therein. At least one central shaft passageway extends therethrough parallel to the transverse axis. The body has a first end portion extending in the plane and away from the central portion parallel to the transverse axis and has at least one first end shaft passageway extending parallel to the longitudinal axis. The body has a second end portion extending away from the central portion askew to the plane and has at least one second end shaft passageway extending askew to the plane. At least two magnetic feet assemblies are retained in the at least two slots respectively. At least one brush shaft with a chip brush is disposed in at least one of the shaft passageways.

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: The present disclosure provides an electronic circuit having one reference current terminal arranged to connect to a reference current generator, an MOS current mirror stage, an MOS push-pull amplifier stage operatively coupled to the current mirror stage and the current mode amplifier stage.

Abstract: A method of cutting a workpiece with a band saw is disclosed herein. The method includes rotating, with a band saw machine, a blade about a central longitudinal axis. The method also includes moving, with the band saw machine, the blade and a workpiece relative to the other to form a cut in the workpiece. The method also includes supporting a back edge of the blade at a first position before a lateral entry position of the cut or a second position after a lateral exit position of the cut with a first back support member. The method also includes extending an extension arm of the first back support member to shift the back edge a first distance rectilinearly along the central longitudinal axis toward the workpiece, wherein the shifting is cumulative to rectilinear movement from the moving.

Abstract: Methods and wireless communication devices for sleep time management comprise determining a current remaining time before performing a scheduled activity, comparing the current remaining time with a predetermined sleep duration, setting a current sleep time according to a predefined setting and the current remaining time and updating the current remaining time according to the current sleep time in response to the current remaining time being greater than the predetermined sleep duration, or setting the current sleep time to the current remaining time and updating the current remaining time to zero in response to the current remaining time being less than or equal to the predetermined sleep duration. The methods and wireless communication devices further comprise entering a power management mode for a period of time equal to the current sleep time and exiting from the power management mode to perform a calibration operation after the current sleep time.

Abstract: Systems and techniques are provided for performing wireless communications. In some aspects, calibration of a station (STA) in a wireless communication network can be managed based on receiving a beacon frame that includes a Restricted Access Window (RAW) Parameter Set (RPS) Information Element (IE), and determining that an Association Identity (AID) indicated in the RPS IE of the received beacon frame matches a calibration AID associated with the STA. A process can further include determining a RAW based on the RPS IE and scheduling a RAW clear medium calibration (RAW-cmc) event within the RAW, based at least in part on the determination that the AID indicated in the RPS IE matches the calibration AID. Subsequently, the scheduled RAW-cmc event within the RAW can be used to perform calibration for the STA as scheduled.

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: A stud rail system comprising at least one stud rail assembly. The at least one stud rail assembly comprises a plurality of rail portions, a plurality of cross portions, where a plurality of sets of support openings are formed in each of the plurality of the cross portions, a plurality of pin projections, where each rail portion supports at least one pin projection, a plurality of support assemblies, and a plurality of support projections, where each support projection is supported by one of the plurality of support assemblies. Each of the support projections extends through one of the support openings in each set of support openings such that the rail portions are rotatably connected to cross portions at a plurality of axis points to allow the stud rail assembly to be reconfigured between a collapsed configuration and an expanded configuration.

Abstract: Methods and wireless communication devices for processing wireless signals with adaptive frequency shift correction. An embodiment of the method includes receiving a wireless signal by the receiver, performing packet detection to detect at least a portion of a preamble part of a current frame carried in the wireless signal according to a default frequency output from a Phase Lock Loop (PLL), estimating a frequency offset between the default frequency and a frequency used to carry information in the preamble part of the current frame, reconfiguring the PLL according to the frequency offset to output a compensated frequency, and processing a packet part of the current frame using the compensated frequency output from the PLL. The method may further mitigate the impact of a residual Direct current (DC) component by filtering the wireless signal based on the compensated frequency.

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: Systems and techniques are provided for performing wireless communications. In some aspects, a wireless communication device can transmit one or more first packets starting from a first time point. The wireless communication device can determine a time-on-air of the one or more first packets, wherein the time-on-air of the one or more first packets is an airtime associated with transmitting the one or more first packets. The wireless communication device can calculate an off-air time corresponding to transmission of the one or more first packets, wherein the off-air time is calculated based on the time-on-air and a duty cycle associated with the wireless communication device. The wireless communication device can delay sending one or more second packets until after a second time point later than the first time point, the second time point determined based on a sum of the first time point, the time-on-air, and the calculated off-air time.

Abstract: The disclosure is directed to a system and methods for waking-up a wireless receiver on a wireless network. The method includes the steps of: listening, by the wireless receiver, for signals in a predetermined frequency band periodically and decoding a wake-up key; validating the wake-up key by correlating the wake-up key with values stored in a memory using a first processing device; if the wake-up key is validated, decoding at least one PHY Protocol Data Unit (PPDU) and checking the value of one or more bits of the PPDU to validate the decoded PPDU as a wake-up PPDU; if the wake-up packet is validated, decoding a wake-up address and comparing the wake-up address to the station (STA) wake-up address; if the decoded wake-up address matches the STA wake-up address, powering-up a second processing device and confirming wake-up by exchanging an encrypted frame with Access Point (AP).

Abstract: A hole saw is disclosed herein. The hole saw can include a cylindrical body having inner and outer cylindrical surfaces concentric to each other about a first axis. The body can also extend along the first axis between first and second opposite ends. The hole saw can also include a plurality of teeth each including a tooth body and a carbide tip positioned on the tooth body and forming a tooth face. Each of the tooth faces can define one or more cutting edges. The teeth can be arranged in an alternating pattern including a first tooth in the form of a chisel tooth, a second tooth immediately behind the first tooth and in the form of an offset grind tooth, and a third tooth immediately behind the second tooth and in the form of a triple chip grind tooth.

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: A stud rail system for a reinforced concrete structure defining a column portion and a slab portion comprises at least one stud rail assembly. The at least one stud rail assembly comprises a plurality of rail portions, a plurality of cross portions, a plurality of pin projections, and a plurality of support assemblies. Each rail portion supports at least one of the plurality of pin projections. Each of the support assemblies engages one of the plurality of rail portions such that the plurality of rail portions are rotatably connected to the plurality of cross portions to allow the stud rail assembly to be reconfigured between a collapsed configuration and an expanded configuration.

Abstract: The disclosure is directed to a system and methods for waking-up a wireless receiver on a wireless network. The method includes the steps of: listening, by the wireless receiver, for signals in a predetermined frequency band periodically and decoding a wake-up key; validating the wake-up key by correlating the wake-up key with values stored in a memory using a first processing device; if the wake-up key is validated, decoding at least one PHY Protocol Data Unit (PPDU) and checking the value of one or more bits of the PPDU to validate the decoded PPDU as a wake-up PPDU; if the wake-up packet is validated, decoding a wake-up address and comparing the wake-up address to the station (STA) wake-up address; if the decoded wake-up address matches the STA wake-up address, powering-up a second processing device and confirming wake-up by exchanging an encrypted frame with Access Point (AP).