Device and method for determining engagement of a subject
Granted: December 24, 2024
Patent Number:
12175795
A device, a computer implemented method, and a computer program product, the device including a capture device configured for capturing an image, and a processor configured to: receiving at least a part of an image captured by the capture device, analyzing the at least part of the image to determine a looking direction of a subject at an object, based on the looking direction, determining an engagement level of a subject with the object, and outputting the engagement level or whether the…
JPEG classifier
Granted: December 10, 2024
Patent Number:
12167015
A method, device and computer program product, the method comprising: obtaining access to a classifier trained upon a multiplicity of sets of decoded coefficients; obtaining a set of block coefficients associated with at least a part of the compressed image; and applying the classifier to the set of block coefficients, to obtain a classification of the compressed image.
Post-training control of the bias of neural networks
Granted: November 26, 2024
Patent Number:
12154032
A method for controlling a bias of a neural network, the method may include training the neural network by using a loss function that is responsive to classes of a classification process and sensitivity input values thereby setting the bias.
Virtual sound localization for video teleconferencing
Granted: October 8, 2024
Patent Number:
12114149
This disclosure provides methods, devices, and systems for videoconferencing. The present implementations more specifically relate to audio signal processing techniques that can be used to identify speakers in a videoconference. In some aspects, an audio signal processor may map each speaker in a videoconference to a respective spatial direction and transform the audio signals received from each speaker using one or more transfer functions associated with the spatial direction to which…
Active noise cancelling system
Granted: September 3, 2024
Patent Number:
12080265
An active noise cancelling system (20) comprising: an earphone (8?) comprising: an electro-acoustic driver (11); and at least one sensing microphone (12, 13); tunable active noise cancelling circuitry (7) operative to receive a signal from the at least one sensing microphone (12, 13), the tunable active noise cancelling circuitry (7) being pre-configured in a standard tuning for a reference ear and comprising at least one noise-control filter (14, 15); and a tuning module (24) operative…
Radio frequency digital to analog conversion
Granted: May 7, 2024
Patent Number:
11979118
There is provided a RF-DAC that may include (i) a first PAM that includes a first group of first power amplifiers of different amplifications, (ii) a second PAM that includes a second group of second power amplifiers of different amplifications; (iii) a load that includes an output port and a transformer; (iv) power amplifiers control units, and a transformer control unit. During a cycle of operation (i) each one of the first and second PAMs is configured to receive one or more power…
Supplying power to a transmitter using a coin cell battery
Granted: November 7, 2023
Patent Number:
11811026
A coin cell powered device includes a regulator, a transmitter and a charge pump. The transmitter is configured to transmit signals during a transmission period while receiving power from the regulator, the power originated from an external capacitor. The charge pump is configured to perform, during a charging period, a charging process for charging the external capacitor to a charged voltage that exceeds a voltage of a cell coin, wherein the charging process may include iterations of…
Robust ule voice broadcast
Granted: May 23, 2023
Patent Number:
11659079
A method for receiving audio broadcasts during a digital enhanced cordless telecommunication (DECT) frame, the method may include (a) opening, during a DECT frame and by a portable point (PP) that is a potential recipient of the audio broadcasts from a fixed part (FP), multiple reception windows that are spaced apart from each other and are allocated to receive signals related to audio broadcast; (b) receiving received signals, by the PP and during the multiple spaced apart reception…
Distributed processing of sensed information
Granted: December 6, 2022
Patent Number:
11521061
A method for distributed neural network processing, the method may include detecting, by a local neural network that belongs to a local device, and based on sensed information, an occurrence of a triggering event for executing or completing a classification or detection process; sending to a remote device, a request for executing or completing the classification or detection process by a remote device that comprises a remote neural network; wherein the remote neural network has more…
In-ear detection utilizing earbud feedback microphone
Granted: November 15, 2022
Patent Number:
11503398
A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third…
Speech pre-processing in a voice interactive intelligent personal assistant
Granted: October 18, 2022
Patent Number:
11475888
A method for speech level adaptation, the method includes: (A) Receiving, by a voice interactive intelligent personal assistant, multiple input audio signals that includes first and second groups of input audio signals. (B) Buffering the multiple input audio signals. (C) Searching for a voice trigger in the first group of input audio signals. When finding the voice trigger then (D) Determining a linear gain factor to be applied on the second group of buffered audio signals, (E) Applying…
Automatic frequency shift compensation (AFSC) in resonant tank circuits over the process variation
Granted: September 20, 2022
Patent Number:
11451194
A low noise amplifier that may include a first input port, a second input port, a first capacitor, a second capacitor, a first variable capacitor, a second variable capacitor, an inductor, a bias circuit, a tuning circuit, a first output circuit having a first output, a second output circuit having a second output; wherein the first input port is electrically coupled to a first end of the second variable capacitor, to a first end of the first capacitor, to an input of the first output…
System and a method for transmission of audio signals
Granted: April 5, 2022
Patent Number:
11295747
A method and a voice processor that includes (i) an input that is configured to receive of audio signals that represent audio, (ii) a wake word detection circuit, (iii) a first buffer that is configured to store at least wake word signals and prebuffer signals, and (iv) a communication module that is configured to (a) output, over an interrupt port, an interrupt request to an application processor, following a detection of the wake word signals, (b) following an acceptance of the…
Interface to leaky spiking neurons
Granted: February 1, 2022
Patent Number:
11238887
A processor, that may include at least one neural network that comprises at least one leaky spiking neuron; wherein the at least one leaky spiking neuron is configured to directly receive an input pulse density modulation (PDM) signal from a sensor; wherein the input PDM signal represents a detected signal that was detected by the sensor; and wherein the at least one neural network is configured to process the input PDM signal to provide an indication about the detected input signal.
Voice detection
Granted: January 11, 2022
Patent Number:
11222654
A method for voice detection, the method may include (a) generating an in-ear signal that represents a signal sensed by an in-ear microphone and fed to a feedback active noise cancellation (ANC) circuit; (b) generating at least one additional signal, based on at least one out of a playback signal and a pickup signal sensed by a voice pickup microphone; and (c) generating a voice indicator based on the in-ear signal and the at least one additional signal.
Multiply and accumulate (MAC) unit and a method of adding numbers
Granted: November 2, 2021
Patent Number:
11163531
A method and a MAC unit that may include accumulation unit and a multiplier. A accumulation unit that includes a first part, a second part and a third part. The first part may calculate a truncated sum. The second part may be configured to (a) receive, during each calculation cycle, a carry out of an add operation performed during a calculation cycle, (b) receive a sign bit of an intermediate product calculated during the calculation cycle; and (c) calculate, by the counter logic, a…
Electrostatic speaker and a method for generating acoustic signals
Granted: October 19, 2021
Patent Number:
11153690
A micro-electro-mechanical system (MEMS) electrostatic speaker that comprises an array of cells, wherein each cell comprises an upper stator, a membrane, a lower stator and supporting elements configured to support the upper stator, the membrane and the lower stator; wherein a distance between the upper stator and the lower stator of each cell is of microscopic scale.
Digital enhanced cordless telecommunications system and method
Granted: September 21, 2021
Patent Number:
11128371
A DECT system and a method for communicating between a DECT fixed point and multiple DECT portable points. The method may include step (a) of communicating between a master communication processor of the DECT fixed point and one or more DECT portable points during master communication slots. The method may also include step (b) of communicating between a slave communication processor of the DECT fixed point and at least one of the DECT portable points during slave communication slots.…
Noise cancellation
Granted: September 14, 2021
Patent Number:
11120795
A method for noise cancellation, the method may include detecting a voice trigger or receiving an indication regarding an occurrence of a voice trigger; searching, based at least on a timing of occurrence of the voice trigger, for at least one of a noise-period and a voice-period; when finding a noise period then updating one or more noise parameters based on one or more features of sensed audio signals received during the noise period; when finding a voice period then updating one or…
Neural cell and a neural network
Granted: August 10, 2021
Patent Number:
11087205
A neural network that may include multiple layers of neural cells; wherein a certain neural cell of a certain layer of neural cells may include a first plurality of one-bit inputs; an adder and leaky integrator unit; and an activation function circuit that has a one-bit output; wherein the first plurality of one-bit inputs are coupled to a first plurality of one-bit outputs of neural cells of a layer that precedes the certain layer; wherein the adder and leaky integration unit is…
