19 results about "Distortion reduction" patented technology

Described herein are switches with asymmetrical anti-series varactor pairs to improve switching performance. The disclosed switches can include asymmetrical varactor pairs to reduce distortions. The asymmetry in the varactor pairs can be associated with geometry of each varactor in the pair. The disclosed switches can stack both symmetrical and asymmetrical varactor pairs. The disclosed switches with asymmetrical anti-series varactor pairs can be configured to improve both H2 and H3 simultaneously.

A system and method for distortion reduction. In some embodiments, a system for distortion reduction includes a transmitter comprising pulse amplitude modulation driver circuitry. The pulse amplitude modulation driver circuitry may include a main driver comprising a most significant bit (MSB) amplifier and a least significant bit (LSB) amplifier. The LSB amplifiers may include an upper arm and a lower arm, the strength of which is adjustable.

The present application relates to a mobile body control device and control method, storage medium, and vehicle that appropriately recognize the outside of a mobile body according to a movement scene. A mobile body control device having one or more imaging devices includes: an image acquisition unit that acquires images of the outside of the mobile body from the one or more imaging devices; a correction unit that performs distortion reduction processing for reducing distortion of the images for one or more regions included in the images acquired from the one or more imaging devices; and a recognition unit that recognizes the outside of the mobile body based on the images after the distortion reduction processing, the correction unit determining the one or more regions that are the targets of the distortion reduction processing in accordance with a predetermined rule corresponding to the movement scene of the mobile body.

Broadly speaking, embodiments of the present techniques generally relate to a method and user device for generating modified audio signals using a machine learning, ML, model. In particular, the present application relates to a computer-implemented method for training a ML model to generate modified audio signals for hearing-impaired persons and / or for distortion reduction or removal, and a user device for generating modified audio signals using a trained ML model. Advantageously, the present techniques provide an effective way of training a ML model to aid in the treatment of hearing impairments.

Telecommunications network hardware unit comprising a processor connected to a computer-readable memory unit, the memory unit containing instructions which, when executed by the processor, implement a method for dynamically filtering telecommunications network agents, the method comprising: Retrieval, by the processor executing software code with respect to a virtual network function (VNF) and a physical network function (PNF) of the telecommunications network hardware unit, of peripheral data associated with a user device (UE) that is enabled with respect to a telecommunications network associated with the telecommunications network hardware unit; Assigning peripheral data to a predefined filter selection model by the processor; Selecting, by the processor executing the predefined filter selection model, and in response to the results of mapping, a filtering agent model from a pool of model resources; Selecting, by the processor in response to the execution of the filtering agent model, filtering agents from the VNF and in connection with noise and distortion reduction, which is related to the UE in relation to the telecommunications network; Retrieval, by the processor using a plurality of sensors of a global positioning system (GPS sensors), of environmental properties related to the telecommunications network; Identify, by the processor based on the environmental characteristics, a specified location of the UE that is enabled in relation to the telecommunications network; Sending the filtering agents to the UE via push, through the processor, with the filtering agents being stored within a temporary memory area of ​​an operating system of the UE; Generating, by the processor, network instructions related to the execution of the filtering agents; Execution, by the processor in response to the activation of the network instructions, of the filtering agents with respect to the UE, wherein the execution activates the filtering agents with respect to the UE for a specified time frame; and Reduce, by the processor in response to the results of execution, noise and distortion that occur during the operation of the UE in relation to the telecommunications network.

A system is provided that may include plural converters that are connected to a common bus. Each of the converters may be configured to convert an alternating current (AC) through the common bus to a direct current (DC) by alternating switches of each of the plural converters between open and closed states in a switching cycle. The system may also include a controller circuit that may be configured to adjust the AC conducted onto the common bus to the plural converters so that a root mean square of a ripple current component of the AC meets one or more designated criteria.

A double-layer rubber edge passive vibration plate comprises an upper rubber edge which is made of an elastic soft rubber material and is formed on a balancing weight in a vulcanization mode; the balancing weight is embedded into the upper rubber edge; the lower rubber edge is fixed with the upper rubber edge and the balancing weight through an adhesive; the passive plate is novel in structure and ingenious in conception, and the double-layer rubber edge design optimizes the vibration characteristics of the passive plate, so that the sound quality performance of the sound box is remarkably improved, distortion and abnormal sound are reduced, and purer and more natural sound experience is brought. The application of the vibration balance theory further improves the vibration balance of the passive plate, so that the sound is more accurate and stable.

A system (11) includes (a) an actuator (23, 25, 27), which is configured to tilt a roller (99, 77, 76) while an intermediate transfer member (ITM) (44) of a printing system (11) is moved thereon; and a controller (54, 20), which is configured to: (i) identify a distortion of the ITM (44), and 5 (ii) control the actuator (23, 25, 27) to tilt the roller (99, 77, 76) to reduce the distortion while the ITM (44) is being moved.

A method of signal compensation in wireless communications is described. The method includes receiving a signal that has been distorted by a transmitter. This signal includes in-band (IB) components that include both data and distortion, and out-of-band (OOB) components that are indicative of distortion. The method includes decomposing the received signal to distinguish between the IB and OOB components. It then uses the content within the OOB components to reduce the distortion and produce a compensated signal. An apparatus and one or more non-transitory computer-readable storage devices configured to perform this method are also disclosed. With the embodiments described herein, improved signal fidelity is achieved, allowing for improved receiver performance without the need for additional reference signals or complex transmitter-side compensation mechanisms.

The embodiment of the utility model discloses a long-focus lens with a large target surface and a large aperture. The telephoto lens sequentially comprises a first lens with positive focal power, a second lens with positive focal power, a third lens with negative focal power, a fourth lens with negative focal power, a fifth lens with negative focal power and a sixth lens with positive focal power from an object side to an image side along an optical axis, the seventh lens has positive focal power; the eighth lens has negative focal power; the first lens and the sixth lens are glass aspheric lenses, and the other lenses are plastic aspheric lenses. According to the utility model, through focal power distribution of the eight lenses, aberration distribution can be balanced, luminous flux can be controlled, an imaging surface can be adjusted, and large-aperture and large-target-surface imaging performance can be realized. In addition, aberration correction, distortion reduction, illumination increase, reduction of the number of optical system lenses and reduction of manufacturing cost can be better achieved through the aspheric plastic lens. The glass lens is utilized to eliminate chromatic aberration, and clear imaging is realized in high and low temperature environments.

A semiconductor device and a method for manufacturing the same. A substrate is provided. At least one silicon layer is formed on the top of the substrate. At least one silicon-germanium layer is formed on top of the at least one silicon layer. The at least one silicon-germanium layer contains at least one n-type dopant. A semiconductor device having at least one silicon layer and at least one silicon-germanium layer is formed.

A system may include a controller couplable to an imaging sub-system utilizing multiple particle beams, where the imaging sub-system includes one or more control elements to manipulate the two or more particle beams that are adjustable with two or more control parameters. The controller may select values of the two or more control parameters by iteratively performing steps until one or more termination conditions are met. For example, the controller may receive measurements of changes of distortions of the particle beams resulting from individual adjustments of the control parameters. The controller may further calculate values of the control parameters that reduce the distortions of the particle beams based on the changes of the distortions resulting from the individual adjustments. The controller may further direct the adjustment of the values of the control parameters to the calculated values.

Methods, systems, and apparatus for wireless communication are described. A user equipment (UE) can be configured to select a beam set to generate energy in a first coverage area (e.g., an out-of-coverage (OOC) area) to reduce the effects of distorted electric fields. The UE can select the beam set based on a gain parameter associated with an antenna set at the UE, wherein the gain parameter is determined for communication in a second coverage area (e.g., an in-coverage (INC) area). In some examples, the UE can use iterative techniques to select the beam. In some examples, the UE can select the beam set based on calculations using a codebook beam set associated with the second coverage area. In some examples, the UE can additionally select the beam set for communication in the second coverage area.

The disclosed semiconductor amplifier circuit addresses distortion reduction in audio signal amplification by incorporating semiconductor devices with substrate loss pickup elements. The circuit includes a differential amplifier setup using semiconductor devices for initial signal processing and a cascode stage with semiconductor devices equipped with substrate loss pickup elements for mitigating substrate loss currents. Bias networks set operating points for linear amplification, complemented by a power supply connection for operational voltage. Substrate loss pickup elements are configured to reduce distortion by capturing uncollected charge carriers, enhancing audio fidelity.

This invention relates to an audio amplifier control method based on battery power-linked adaptive equalization, comprising: acquiring the current battery voltage value; performing EQ processing on the next audio signal according to the current battery voltage range; if the current voltage value is between 11.1V and 12.6V, then low frequencies below 200Hz are not attenuated, and other frequency bands are increased; if the current voltage value is between 10.5V and 11.09V, then low frequencies below 200Hz are attenuated by 1 to 3dB; if the current voltage value is between 9.9V and 10.49V, then low frequencies below 200Hz are attenuated by 3 to 6dB; if the current voltage value is between 9.0V and 9.89V, then low frequencies below 200Hz are attenuated by 6 to 10dB, and the maximum volume is limited; it can dynamically adjust EQ parameters according to different battery power levels, and can reduce the gain of high-power frequency bands when the battery power is low, extend battery life and reduce distortion.

A head-worn device may be configured with a curved window-element that can generate distortion in images captured by a camera of the head-worn device. Window extrinsics describing the shape, orientation, and / or position of the curved window-element may be used as a calibration to reduce the distortion. An online calibration process may be run at times during use so that the window extrinsics can be updated to accurately represent the curved window-element after changes in the shape, orientation, and / or position of the curved window-element occur.

A head-worn device may be configured with a curved window-element that can generate distortion in images captured by a camera of the head-worn device. Window extrinsics describing the shape, orientation, and / or position of the curved window-element may be used as a calibration to reduce the distortion. An online calibration process may be run at times during use so that the window extrinsics can be updated to accurately represent the curved window-element after changes in the shape, orientation, and / or position of the curved window-element occur.

The application discloses an audio noise reduction model training method and device and a storage medium, and relates to the technical field of audio processing. The method comprises the following steps: acquiring noisy audio, inputting the noisy audio into a target neural network for training with clean audio as a training target; the target neural network takes the noisy audio as input and takes noise reduction audio as output; a signal-to-noise ratio estimator is used to determine the signal-to-noise ratio of the noise reduction audio corresponding to the noisy audio as a first signal-to-noise ratio; a first loss function is determined according to the first signal-to-noise ratio and a second signal-to-noise ratio corresponding to the noisy audio; the target neural network is iteratively trained by using the first loss function and the second loss function, and a trained audio noise reduction model is obtained; the second loss function is constructed according to the difference between the clean audio corresponding to the noisy audio and the noise reduction audio. The audio difference and the signal-to-noise ratio difference are combined for joint constraint, the audio noise reduction capability is improved, and distortion is reduced.

The invention relates to the technical field, in particular to a sound equipment shell which comprises a shell body, an acoustic gradual change impedance layer is arranged on the outer surface of the shell body, and the acoustic gradual change impedance layer has the characteristic that acoustic impedance decreases progressively in an exponential law in the thickness direction of the shell body. And the acoustic gradient impedance layer is formed by superposing at least two material layers of a high polymer material layer, a ceramic fiber layer and a metal honeycomb layer. The effects of reducing distortion and improving sound quality are achieved.