12 results about "Selective modulation" patented technology

The embodiment of the present application provides a laser communication modulation method and system thereof, which can solve the technical problem of poor sensitivity of free-space laser communication under extremely low signal-to-noise ratio conditions. The method includes performing polarization-selective modulation on a coding sequence to obtain multiple groups of linearly polarized light pulses. Each group of linearly polarized light pulses is sent to different photon detectors through different channels to obtain a first photon count and a second photon count. According to the first photon count and the second photon count of all groups of linearly polarized light pulses, a log-likelihood ratio is obtained through soft decision. Then, the original information prediction value is obtained through channel decoding. In this way, polarization-selective pulse position modulation and its corresponding demodulation method can obtain better communication sensitivity and stronger resistance to background noise compared to PPM‑PC. In addition, optical signals in different polarization states carry different data respectively, and are then transmitted in sequence, with a high transmission rate.

A pharmaceutical composition for isotope-selective modulation including at least one isotope selected from the group consisting of 1H, 6Li, 12C, 10B, 14N, 16O, 17O, 24 Mg, 26 Mg, 28Si, 29Si, 32S, 33S, 39K, 35Cl, 40Ca, 42Ca, 43Ca, 50V, 50Cr, 52Cr, 54Fe, 56Fe, 58Ni, 60Ni, 61Ni, 63Cu, 64Zn, 66Zn, 92Mo, 94Mo, 95Mo, 96Mo, 74Se, 76Se, 77Se, 78Se, 70Ge, 72Ge, 73Ge, 79Br, 85Rb, 107 Ag, 130Ba, 132Ba, 134Ba, 135Ba, and 136Ba, wherein said at least one selected isotope is enriched to exceed its relative isotopic ratio found in a naturally occurring sample of the same chemical element. Methods for its use include investigating the isotopic signatures, intervening with isotopic fractionation in mammals.

The invention concerns a hybrid optical device combining a silicon-on-insulator (SOI) waveguide platform (1) comprising a silicon waveguide (1a) with a thin-film electro-optical (EO) material such as lithium niobate or barium titanate forming a waveguide structure (2). The EO material waveguide structure (2) is bonded in optical contact with the SOI waveguide (1a), and electrodes (6) on its sides enable refractive index modulation via the electro-optical material Pockels effect. A coupling section (7), preferably comprising a tapered SOI waveguide (7a), transfers light between the SOI and EO structures with low loss. The device may include Bragg gratings (4a) or periodically poled sections (4b) in the EO layer for tunable or wavelength-selective modulation. The structure allows fast, reconfigurable light modulation, filtering, and signal routing on a CMOS-compatible platform, suitable for high-speed communication, optical computing, and sensing, offering a compact and efficient electro-optic integration solution.

The technology includes selective modulation of only a peripheral CB1R by using a CB1R antagonist contained in a peripherally restricted delivery system.

A pharmaceutical composition for isotope-selective modulation including at least one isotope selected from the group consisting of 1H, 6Li, 12C, 10B, 14N, 16O, 17O, 24Mg, 26Mg, 28Si, 29Si, 32S, 33S, 39K, 35Cl, 40Ca, 42Ca, 43Ca, 50V, 50Cr, 52Cr, 54Fe, 56Fe, 58Ni, 60Ni, 61Ni, 63Cu, 64Zn, 66Zn, 92Mo, 94Mo, 95Mo, 96Mo, 74Se, 76Se, 77Se, 78Se, 70Ge, 72Ge, 73Ge, 79Br, 85Rb, 107Ag, 130Ba, 132Ba, 134Ba, 135Ba, and 136Ba, wherein said at least one selected isotope is enriched to exceed its relative isotopic ratio found in a naturally occurring sample of the same chemical element. Methods for its use include investigating the isotopic signatures, intervening with isotopic fractionation in mammals.

TRPV1 is an integral cation channel widely expressed in various tissues and involved in critical biological functions, such as thermosensation. It is polymodally activated by distinct stimuli, including chemical ligands, heat, and protons (pH). However, dozens of clinical trials targeting various types of TRPV1 -mediated pain have generally failed, primarily due to hyperthermia (increased body temperature). Meta-analysis of clinical data suggests that mode-selectivity is essential to realizing the therapeutic potential of TRPV1. TRPV1 is regulated allosterically, with vanilloids and other chemical ligands binding to the voltage-sensing-like domain (VSLD), resulting in the gating of the pore domain. Therefore, compositions and methods for modulating TRPV1 to treat human pathophysiologies, such as pain, are described herein.

Systems and methods discussed herein can be used to augment or induce brainwave behavior, such as using auditory stimulus, in an example, ambient acoustic information can be received, selectively modulated, and presented to a user in a substantially continuous manner. A low frequency portion of received ambient acoustic information can be modulated and then combined with a high frequency portion of the ambient acoustic information to produce a combined signal. The combined signal can be provided to the user as an auditory stimulation signal.

The invention provides a novel heterocyclic compound with a CB1 signal channel abnormity regulation effect, and particularly provides a compound which is used as a CB1 target spot regulator and has a structure shown in a formula (I) or pharmaceutically acceptable salt, solvate, hydrate, isotope substitute or isomer of the compound.

The application discloses a kind of modal missing oriented multi-modal low-light video enhancement methods of reasoning.The method obtains low-light RGB video frame and extracts RGB feature;When one or more auxiliary modalities in event stream, infrared image exist, the corresponding real auxiliary modal feature is extracted;When any auxiliary modal is missing, the corresponding implicit auxiliary feature is generated in feature layer using spatial-spectral double-gated converter, without explicitly reconstructing complete missing modal.The spatial-spectral double-gated converter includes illumination-aware detail selector and band selector, respectively based on low-frequency lighting information to filter reliable high-frequency details, and selectively modulate effective frequency band in frequency domain.Subsequently, RGB feature is fused with real auxiliary modal feature or implicit auxiliary feature, and enhanced video frame is obtained through timing modeling and residual decoding.By synthesizing multi-modal pre-training and full-modal, missing modal and feature distillation joint training, the application can improve the robustness and generalization ability of low-light video enhancement under different auxiliary modal available conditions.

The present application relates to the technical field of imaging chip, and particularly relates to a multi-modal imaging chip and a preparation method thereof; the multi-modal imaging chip, wherein each macro-pixel in a light modulation layer corresponds to a pixel cluster of an image sensing layer; each macro-pixel adopts an anti-crosstalk micro-nano structure primitive array; a plurality of polarization-independent spectral selection micro-nano units and a plurality of spectral-independent polarization selection micro-nano units are arranged in a non-uniform manner in each anti-crosstalk micro-nano structure primitive array; the polarization-independent spectral selection micro-nano unit is a two-dimensional grating structure with four-fold rotational symmetry, and based on a first preset parameter, selective modulation of light of a preset specific waveband is realized; the spectral-independent polarization selection micro-nano unit is a one-dimensional grating structure with anisotropy, and based on a second preset parameter, selective modulation of light of a specific polarization state is realized. The present application can decouple and reconstruct spectral information and polarization information of an incident light field from a single frame of image obtained by single exposure.

The invention provides a gradient frequency interdigital transducer for selectively regulating and controlling quantum dots, and the interdigital transducer comprises an active substrate which is made of a piezoelectric material; each group of electrode basic units is a parabola-shaped long strip, each group of electrode basic units comprises two parabola-shaped metal strips, the parabola-shaped long strip is defined by the two parabola-shaped metal strips, and the plurality of groups of electrode basic units are periodically distributed on the active substrate according to the interdigital structure; the anode bus bar is used for connecting all the electrode basic units connected with the anode of the radio frequency signal source; and the grounding bus bar is used for connecting all the electrode basic units connected with the ground wire. According to the scheme, selective regulation and control of the quantum dots are achieved, and high radio frequency response sensitivity is achieved. According to the invention, dual-mechanism selectable regulation and control are also realized, switching from'symmetric broadening 'to'asymmetric splitting' can be realized for the same quantum dot through frequency selection, and high performance and expandability are realized.