10 results about "Time domain multiplexing" patented technology

An audio authentication and identity verification system and method that encodes dynamic cryptographic information across the audible and inaudible spectrum (0 Hz→30 kHz, scalable to 124 kHz). A rolling acoustic signature simultaneously embeds identity, time, date, and GPS location using a hybrid of frequency shift keying (FSK), phase shift keying (PSK), Morse style pulse duration modulation, and time domain multiplexing. To guarantee post-event privacy and integrity, the system further incorporates a dual custody audio architecture in which every authenticated recording is split into complementary bit interleaved segments stored separately, and the decryption key is fragmented via Shamir 3-of-5 secret sharing—preventing unilateral access or tampering. The system establishes a tamper proof, real time, and offline capable authentication layer that functions in air, through conventional microphones, and via dedicated emitter hardware.

A device comprises a control circuit configured to control a plurality of quantum bits. The control circuit comprises a digital-to-analog converter circuit and switching circuitry coupled to an output of the digital-to-analog converter circuit. The switching circuitry is responsive to switch control signals to selectively connect the output of the digital-to-analog converter circuit to one or more of a plurality of signal paths to generate control signals to control the plurality of quantum bits.

A physical random access channel transmitting method and apparatus, the method including: a terminal equipment transmits a second number of PRACHs on a first number of valid ROs, the first number of valid ROs being time-domain multiplexed, or the first number of valid ROs being frequency-domain multiplexed, or the first number of valid ROs being time-domain and frequency-domain multiplexed, and the first number and the second number being positive integers greater than or equal to 2.

A communications network for a vehicle comprising: a central processing node; a zonal node; an Ethernet network coupling the central processing node to the zonal node; and an edge network coupled to the zonal node, the edge network comprising a time domain multiplexing (TDM) bus and a plurality of edge transducers coupled to the TDM bus, wherein the zonal node comprises a network bridge for bridging transducer data received from the TDM bus to the Ethernet backbone network, wherein the network bridge comprises: interface circuitry for interfacing the network bridge with the TDM bus; clock recovery circuitry for recovering a clock signal for use by the edge network from an Ethernet frame received from the Ethernet network, wherein a TDM cycle of the TDM bus is synchronised to the recovered clock signal; acoustic data receiver circuitry coupled to the interface circuitry by a first low-latency data path, wherein the acoustic data receiver circuitry is configured to transmit acoustic data contained in Ethernet frames received at the network bridge from the Ethernet network to the interface circuitry; and acoustic data transmitter circuitry coupled to the interface circuitry by a second low-latency data path, wherein the acoustic data transmitter circuitry is configured to transmit Ethernet frames containing acoustic data received at the interface circuitry from the edge network to the Ethernet network.

A method and apparatus for transmitting a physical random access channel are provided. The method includes a terminal device transmitting a second quantity of PRACH with a first quantity of active RO, wherein the first quantity of active RO is time-domain multiplexed, or the first quantity of active RO is frequency-domain multiplexed, or the first quantity of active RO is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.

The application discloses a kind of certainty wireless communication method, system and device based on active resource planning, belong to 6G mobile communication field.The application utilizes the global predictability of network side running all user equipment protocol safety state machine (PSSM) under dynamic security foundation (DSF) framework, accurately obtains the logical decision time sequence of each service flow in future planning window, directly allocates deterministic time-frequency resource for each logical decision time by resource allocation algorithm, generates resource use time table and issues to user equipment.User equipment transmits and receives according to table in planning window, without real-time signaling interaction.The application also provides three kinds of implementation modes of explicit planning, implicit planning (derived by planning key) and temporary planning (switching dedicated), and works cooperatively through resource pool division and mapping table version control and two-step arbitration.Resource use time table allows multiple user equipment to share the same physical resource at different logical times through time domain multiplexing, fundamentally eliminates resource collision, realizes zero signaling, zero queuing, sub-millisecond switching interruption deterministic communication, provides complete deterministic scheduling system from "security bottom" to "extreme performance" for 6G network.

The invention discloses a financial community identification method, device, equipment and program product, and the method comprises the steps: obtaining transaction data, constructing a transaction network diagram based on the transaction data, determining an adjacent matrix of the transaction network diagram to obtain a quantum state code, carrying out the Gaussian glass color sampling of the quantum state code based on a time domain multiplexing photon quantum circuit, and obtaining a quantum state code; the sub-graph forming probability corresponding to each node in the transaction network graph is obtained, and the time domain multiplexing photon quantum circuit comprises a space interferometer layer and a time delay circulation layer. And determining the financial community based on the probability of each node. In the invention, the space interferometer layer can expand the number of effective optical modes, and a large number of beam splitters and phase modulators are not needed, so that the hardware complexity is reduced. Through the time delay cycle layer, all optical modes are detected, the number of detectors is reduced, and the hardware cost is reduced. Based on the parallelism of quantum sampling, the time complexity of financial community identification is reduced, and the real-time performance is ensured.

A system for transmitting primary and secondary data, the system comprising: a bus; a parent node coupled to the bus; and a plurality of child nodes each coupled to the bus, wherein: the parent node is configured to periodically transmit a time-domain multiplexing (TDM) periodic beacon to the bus, wherein the TDM periodic beacon signals the start of a primary data transmission interval, and wherein the primary data transmission interval is a period reserved for the transmission of primary data by the parent node and the plurality of child nodes; each of the parent node and the plurality of child nodes is operable to transmit primary data of a current TDM beacon period associated with the TDM periodic beacon to the bus during the primary data transmission interval in response to the TDM periodic beacon; and the parent node and the plurality of child nodes are operable to transmit secondary data to the bus during a secondary data transmission interval between the end of the primary transmission interval and the transmission of the next TDM periodic beacon by the parent node.

Various aspects of the present disclosure relate to utilizing time-domain multiplexing of both information and reference / sensing signals between transmission nodes and receiving nodes and over available physical resources. In some examples, the present disclosure describes a scalable transform-based multiplexing precoder for joint communications and sensing signals.

A communications network for a vehicle comprising: a central processing node; a zonal node; an Ethernet network coupling the central processing node to the zonal node; and an edge network coupled to the zonal node, the edge network comprising a time domain multiplexing (TDM) bus and a plurality of edge transducers coupled to the TDM bus, wherein the zonal node comprises a network bridge for bridging transducer data received from the TDM bus to the Ethernet backbone network, wherein the network bridge comprises: interface circuitry for interfacing the network bridge with the TDM bus; clock recovery circuitry for recovering a clock signal for use by the edge network from an Ethernet frame received from the Ethernet network, wherein a TDM cycle of the TDM bus is synchronised to the recovered clock signal; acoustic data receiver circuitry coupled to the interface circuitry by a first low-latency data path, wherein the acoustic data receiver circuitry is configured to transmit acoustic data contained in Ethernet frames received at the network bridge from the Ethernet network to the interface circuitry; and acoustic data transmitter circuitry coupled to the interface circuitry by a second low-latency data path, wherein the acoustic data transmitter circuitry is configured to transmit Ethernet frames containing acoustic data received at the interface circuitry from the edge network to the Ethernet network.