340 patents
Page 5 of 17
Utility
Generating a preamble portion of an orthogonal frequency division multiplexing transmission having frequency disruption
29 Nov 22
In one embodiment, an apparatus comprises: a baseband processor having a preamble generation circuit to generate a preamble for an orthogonal frequency division multiplexing (OFDM) transmission, the preamble generation circuit to generate the preamble having a first portion comprising a first plurality of symbols and a second portion comprising a second plurality of symbols, where the preamble generation circuit is to generate at least some of the second plurality of symbols having at least one frequency disruption between successive symbols of the second portion; a digital-to-analog converter (DAC) coupled to the baseband processor to convert the first plurality of symbols and the second plurality of symbols to analog signals; a mixer coupled to the DAC to upconvert the analog signals to radio frequency (RF) signals; and a power amplifier coupled to the mixer to amplify the RF signals.
Frederic Pirot
Filed: 29 Nov 21
Utility
Adjusting receiver frequency to compensate for frequency offset during a sounding sequence used for fractional time determination
15 Nov 22
A mixer in a receiver converts a sounding sequence of alternating ones and zeros to an intermediate frequency signal.
Wentao Li, Michael A. Wu, Yan Zhou
Filed: 1 Dec 20
Utility
Dynamic switch pattern selection for angle of arrival
1 Nov 22
A device and method for improving the accuracy of angle of arrival and departure computations is disclosed.
Sauli Johannes Lehtimaki
Filed: 18 Jun 20
Utility
Survey mechanism for a physically unclonable function
25 Oct 22
A plurality of physically unclonable function (PUF) bit cells are surveyed by supplying a plurality of threshold control values to the PUF bit cells.
Jeffrey L. Sonntag
Filed: 16 Apr 20
Utility
System and method to improve encrypted transmissions between nodes
18 Oct 22
Systems and methods for improving encrypted transmissions between nodes in a network are disclosed.
Jakob Buron, Anders Lynge Esbensen, Jonas Roum-Møller
Filed: 25 Mar 21
Utility
Frequency selective attenuator for optimized radio frequency coexistence
4 Oct 22
A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal.
Vitor Pereira, Jeffrey A. Tindle, Mustafa H. Koroglu, Terry Lee Dickey
Filed: 6 Dec 19
Utility
High voltage semiconductor test system with multiple sites for use with a pick and place handler
4 Oct 22
A test system for high voltage testing of semiconductor devices including at least one test socket and a docking plate assembly.
Wenshui Zhang, Wei Jue Lim
Filed: 27 Apr 21
Utility
Positioning and self-calibration mechanism using moving AoA locator
27 Sep 22
A system and method for determining a position or a movable device is disclosed.
Sauli Johannes Lehtimaki, Mika Tapio Länsirinne, Jere Knaappila, Joel Kauppo
Filed: 16 Jun 20
Utility
Synchronization of receiver and transmitter local oscillators for ranging applications
13 Sep 22
A system and method for accurately determining a distance between two network devices using a Channel Sounding application is disclosed.
Rangakrishnan Srinivasan, Michael Wu, Francesco Barale, John Khoury, Aslamali A. Rafi
Filed: 13 Dec 21
Utility
System and method for phase manipulation attack protection and detection in AoA and AoD
6 Sep 22
Systems and methods for detecting and protecting against phase manipulation during AoA or AoD operations are disclosed.
Esa Piirilä, Lauri Hintsala
Filed: 10 Nov 20
Utility
Frequency offset compensation at reflector during frequency compensation interval
6 Sep 22
A method for communicating between a first radio frequency communications device including a first local oscillator and a second radio frequency communications device including a second local oscillator includes receiving a packet using a receiver of the first radio frequency communications device.
Michael A. Wu, Wentao Li, Yan Zhou
Filed: 30 Nov 20
Utility
DC offset compensation in zero-intermediate frequency mode of a receiver
30 Aug 22
A method for operating a radio frequency communications system includes, while operating a first radio frequency communications device in a calibration mode, for each setting of a plurality of settings of a programmable gain amplifier in a receiver of the first radio frequency communications device configured in a zero-intermediate frequency mode of operation, generating an estimate of a DC offset in each of a plurality of digital samples received from an analog circuit path including the programmable gain amplifier, and storing in a corresponding storage element, a compensation value based on the estimate.
Michael A. Wu, Wentao Li, Mitchell Reid, John M. Khoury, Yan Zhou
Filed: 30 Nov 20
Utility
Angle of arrival using machine learning
16 Aug 22
A system and method of determining the angle of arrival or departure using a neural network is disclosed.
Antonio Torrini, Sebastian Ahmed, Joel Kauppo, Sauli Johannes Lehtimaki
Filed: 30 Sep 19
Utility
Voltage regulator having minimal fluctuation in multiple operating modes
2 Aug 22
In an embodiment, an apparatus includes: an amplifier to compare a reference voltage to a feedback voltage and to output a comparison signal based on the comparison; a first loop circuit coupled to the amplifier to receive the comparison signal and output a first feedback voltage for the amplifier to use as the feedback voltage in a first mode of operation; and a second loop circuit coupled to the amplifier.
Ricky Setiawan, Hua Beng Chan, Rex Tak Ying Wong
Filed: 18 Feb 20
Utility
Detecting anomalous events in a discriminator of an embedded device
2 Aug 22
In an embodiment, an apparatus includes: a sensor to sense real world information; a digitizer coupled to the sensor to digitize the real world information into digitized information; a signal processor coupled to the digitizer to process the digitized information into an image; a discriminator coupled to the signal processor to determine, based at least in part on the image, whether the real world information comprises an anomaly, where the discriminator is trained via a generative adversarial network; and a controller coupled to the discriminator.
Javier Elenes, Antonio Torrini
Filed: 4 Nov 20
Utility
Accurate peak detector
2 Aug 22
A peak detector including an input transistor, an isolation transistor, at least one load transistor, a buffer, a control transistor, a current source and at least one resistor.
Jeffrey L. Sonntag, Rex Wong Tak Ying, Yushan Jiang
Filed: 30 Sep 21
Utility
Viterbi equalizer with soft decisions
2 Aug 22
A Viterbi Equalizer having a limited number of stages is disclosed.
Guner Arslan, Chester Yu, Mehmood Ur Rehman Awan
Filed: 22 Apr 21
Utility
Fast signal identification of Bluetooth, ZigBee and other network protocols
19 Jul 22
A system and method for detecting the presence of a Bluetooth or Zigbee signal within a short period of time is disclosed.
Guner Arslan, Yan Zhou, He Gou
Filed: 10 Aug 20
Utility
Clock skew detection and management
19 Jul 22
A system receives a first clock signal with a first frequency and a second clock signal having a second frequency lower than the first frequency.
Vivek Sarda
Filed: 25 Nov 19
Utility
Dynamically reconfigurable frequency selective attenuator for radio frequency receiver front end
12 Jul 22
A wireless device including a receiver circuit coupled to a radio frequency receiver node, a frequency selective attenuator including an inductor and a first capacitor coupled in series to the radio frequency receiver node, and a second capacitor coupled in parallel with the first capacitor.
Arup Mukherji, Vitor Pereira, Jeffrey A. Tindle, Mustafa H. Koroglu, Terry Lee Dickey
Filed: 20 Aug 20