34 results about "Multi channel" patented technology

The present invention provides a method and system for multi-modal remote sensing image hybrid matching with multi-dimensional oriented self-similarity features. The method comprises: hybrid feature coarse matching is executed by rapidly extracting the image's self-similarity features using the offset mean filtering method and describing the feature points using the directional information of the self-similarity features. Through this coarse matching, an affine transformation model between multi-modal images is estimated, and an initial affine transformation is applied to the matched image. Next, the multi-dimensional oriented self-similarity feature fine matching is performed by constructing multi-dimensional oriented self-similarity template features using the multi-channel self-similarity map obtained from the hybrid feature coarse matching stage. Through a subsampling strategy applied to the constructed template features and convolution enhancement using a three-dimensional Gaussian kernel, the directional self-similarity features are strengthened. Finally, a three-dimensional phase consistency measure is used to identify highly accurate matching homologous points.

Radiating elements comprise a first dipole radiator that includes a first dipole arm and a second dipole arm, a second dipole radiator that includes a third dipole arm and a fourth dipole arm and first through fourth electromagnetic bandgap structures that are coupled to distal end portions of the respective first through fourth dipole arms.

A first access point (AP) receives from a second AP a first frame comprising a multi-AP frequency channel assignment for a multi-AP transmission, the multi-AP frequency channel assignment comprising a first frequency channel allocated to the first AP for the multi-AP transmission. The first AP transmits a second frame on the first frequency channel during the multi-AP transmission, and, on condition that the first frequency channel is different from a primary channel of the first AP, transmits a portion of a preamble of the second frame, comprising the multi-AP frequency channel assignment, on the primary channel of the first AP.

Protocol detection circuits for detecting the field device protocol of a field device attached to a channel having a data line are sequentially connected to the data line by a controller that communicates to the field device through the protocol detection circuits. The protocol detection circuits are disconnected from the field device after protocol detection is completed. The channel may be one of a number of channels; the controller may also connect and disconnect the protocol detection circuits from the one channel whereby the protocol detection circuits can be used with any channel. After the protocol of the field device is identified a protocol adapter can be inserted into the channel to enable data conversion between the field device protocol and an another protocol used by the channel for data transmission.

The invention provides an intelligent set top box system based on multi-channel synchronous processing, and relates to the technical field of set top box processing systems.The system architecture comprises a hardware layer, a software layer and a user interaction layer, the hardware layer conducts special core group division according to different links of multi-channel signal processing, and the software layer conducts core group division according to different links of multi-channel signal processing; decoding tasks can be reasonably distributed according to channel priorities and core loads, smooth playing of high-priority channels is guaranteed, a decision tree is constructed according to a large number of off-line signal samples based on a decision tree and signal feature analysis method to accurately judge interference types, measures are taken in a targeted mode, and the interference quality is improved. The intelligent resource management subsystem sets different resource thresholds, monitors system loads and task resource requirements of all channels in real time, establishes multi-dimensional content tags, constructs user interest portraits in combination with multi-dimensional data such as user watching history, mines potential associations among different channel programs, generates personalized recommendation lists and knowledge expansion, and provides a personalized recommendation system for the users. And the viewing field of the user is expanded.

The current invention relates to a computer-generated method for optimizing placement of advertising content across multiple different devices. The system permits targeting of advertising content to consumers on TV and mobile devices that can be operated from within a multi-channel video programming distributor's environment. The system is able to use hard and soft constraints to come up with a number of possible targets for an advertising campaign and can then provide tools for optimizing those targets. The system can allocate advertising campaigns and plans to various inventory types based on the probability of accurate consumer matching. Consumer matching can be achieved by generation of look-alike models in a consumer's device graph to predict future consumption behavior. The system includes an interface through which a user can adjust various constraints and optimize a distributor's revenue yield from advertising.

The invention discloses a vibration displacement sensor system for bridge operation monitoring and a use method thereof, and belongs to the technical field of bridge engineering. The system comprises data acquisition ends and data receiving and processing ends, the data acquisition ends are fixed to bridge piers, bridge abutments or the side faces of beam slabs, each data acquisition end comprises a capacitive acceleration sensor, a microwave signal antenna, a double-lithium battery pack and a solar cell panel, and the data receiving and processing ends are installed at stable positions of the two banks of a bridge. Comprising a multi-channel microwave receiving module, an edge computing unit, a 4G / 5G / LoRa / NB-IoT multi-network transmission module and a phase difference computing module. According to the invention, the problems of insufficient stability and poor environmental adaptability of existing data transmission are solved. According to the invention, through integration of temperature compensation, anti-interference communication, intelligent power supply optimization and rapid installation design, high-precision, all-weather and low-power-consumption monitoring is realized.

Systems, methods, and instrumentalities are provided to implement transmission scheduling. A multiband device may send a request via a first frequency band. The request may include a multiband Request to Send (MRTS) transmission. The request may be associated with a second frequency band and / or a beamforming training schedule. The first frequency band may be associated with a quasi-omni transmission and the second frequency band may be associated with a directional transmission. The first frequency band may be a 5 GHz band and the second frequency band may be a 60 GHz band. The multiband device may receive a multiband Clear to Send (MCTS) transmission via the first frequency band confirming the request. The multiband device may be configured to send a beamforming signal in accordance with the request, for example, via the second frequency band. The beamforming signal may be sent in accordance with a beamforming training schedule.

A method for generating an image comprises providing an imaging device comprising a multi-channel radiofrequency data acquisition system comprising a plurality of receive elements and a transmission system, transmitting a signal pulse including content at first and second high frequencies from the transmission system, recording a time-domain channel waveform from each receive element in the multi-channel radiofrequency data acquisition system, calculating a set of frequency-difference signals for each receive element based on the first and second high frequencies, and applying a frequency-difference waveform inversion (FDWI) to the set of frequency difference signals to generate an image. An imaging system is also disclosed.

The LIDAR system outputs a system output signal and receives a system return signal that includes light from the system output signal that was reflected by an object located outside of the LIDAR system. The LIDAR system includes data lines that each carries a different preliminary channel signal. A selection of the preliminary channel signals is beating at a beat frequency. Each of the preliminary channel signals in the selection of the preliminary channel signals is generated from light included in the system return signal. The LIDAR system includes bandpass filter components. Each of the bandpass filter components receives a different one of the preliminary channel signals and outputs a channel signal on a different filtered data line. The channel signal output by each of the bandpass filter components is a representation of the preliminary channel signal received by the bandpass filter component filtered by one or more bandpass filters included in the bandpass filter component.

To provide a soundbar device with which it is possible to realize an optimum surround environment that corresponds to the screen width of a television device. [Solution] This soundbar device 1 comprises: a first housing 10 having a speaker at a front surface and a left side surface; and a second housing 11 having a speaker at a front surface and a right side surface, it being possible to attach / detach the second housing 11 to / from the right side of the first housing 10 using an attachment / detachment mechanism 12. One of the first housing 10 and the second housing 11 is a main housing, and the other of the two housings is a sub-housing. The main housing extracts an audio signal for a channel allocated to the speakers provided to the main housing from a multi-channel audio signal received by a television device 3, plays back the extracted audio signal, and outputs the played-back audio signal from the speakers, and also extracts an audio signal for a channel allocated to the speakers provided to the sub-housing and transmits the extracted audio signal to the sub-housing. The sub-housing receives the audio signal from the main housing, plays back the received audio signal, and outputs the played-back audio signal from the speakers provided to the sub-housing.

The utility model provides a voice broadcast system. The voice broadcast system comprises a transmitting terminal and a plurality of receiving terminals, the transmitting end comprises an antenna, a frequency band dial switch, an audio interface, a first power interface, a plurality of denoising modules and a modulation module; the frequency band dial switch is used for selecting a target frequency band of the initial audio signal, and the target frequency band is 655 MHz to 690 MHz; the de-noising module is used for filtering the initial power supply signal and is also used for de-noising the initial audio signal to obtain a first audio signal; the modulation module is used for converting the first audio signal into a wireless signal; the antenna is used for sending the wireless signal to a receiving end; a receiving control panel and a loudspeaker are arranged in each receiving end, and the receiving control panel is used for receiving and demodulating the wireless signal to obtain a second audio signal; and the loudspeaker is used for playing the second audio signal. According to the technology, noise can be reduced, the audio quality is improved, and the phenomenon of channel crossing under multiple channels is avoided.

In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

The invention relates to the technical field of broadcast systems, in particular to a control system for multi-channel automatic switching transmission, which comprises a data acquisition unit used for acquiring real-time operation parameters of each main transmission system, signal output indexes of corresponding channels, hardware performance parameters of a public standby machine and historical switching records; the stable monitoring unit is used for dividing the operation cycle of the main transmitting system into a plurality of state monitoring time periods; for the current state monitoring time period, the fluctuation amplitude and the abnormal frequency of the real-time operation parameters of each main transmitting system in the historical state monitoring time period are analyzed, and the operation stability of each main transmitting system in the current state monitoring time period is determined. Through cooperative work of a plurality of units such as data acquisition, stable monitoring and reliable monitoring, real-time monitoring and dynamic switching of a main transmitting system and channels are realized, manual intervention is greatly reduced through the automatic control mode, and the response speed and the operation efficiency of the transmitting system are improved.

The utility model discloses a dual-mode communication device, which relates to the technical field of communication, and comprises a radio frequency front end which is responsible for transmitting and receiving signals and can support multi-channel signal receiving; the baseband processor is compatible with two communication protocols and performs coding and decoding, modulation and demodulation and protocol processing on information; the power supply management chip is used for realizing dynamic voltage adjustment and switching working power supplies required by different working states of the dual-mode communication device; the buffer circuit is used for modulating a signal of an internal working circuit of the dual-mode communication device and the stability of current switching; and the information buffer is used for carrying out data temporary storage on the transmission data of the dual-mode communication device so as to realize temporary backup of the transmission data of the dual-mode communication device. By arranging the dual-mode communication device with the information buffer, transmission signals are backed up and buffered, and the communication stability of the dual-mode communication device is improved.

A full duplex (FDX) amplifier is provided that uses digital filtering for isolation of FDX sub-bands in FDX allocated spectrum, monitors media access control (MAC) management messages, and implements per-sub-band direction switching with precise timing. The FDX amplifier and associated methods have applications in data over cable networks, such as those that operate in accordance with the Data Over Cable Service Interface Specifications (DOCSIS) 4.0.

The utility model relates to an integrated RTK measuring device which comprises a multi-channel antenna, a power supply, a processing module, a wireless transmitting module and a shielding shell, the power supply, the processing module and the wireless transmitting module are enclosed by the shielding shell, and the multi-channel antenna is physically connected to the shielding shell. The shielding shell is configured to isolate the multi-channel antenna from the power supply, the processing module and the wireless transmitting module, the multi-channel antenna is in communication connection with the processing module, the processing module is in communication connection with the wireless transmitting module, and the power supply is configured to supply power to the multi-channel antenna, the processing module and the wireless transmitting module. According to the RTK measuring device, the multi-channel antenna, various navigation / positioning systems, the processing unit, the wireless transmitting module, the battery and other components are integrated in a high-density mode, so that the components of the RTK measuring device are more miniature and more compact, and carrying of miniature carriers such as miniature / miniature unmanned aerial vehicles with the requirement for load is greatly facilitated.

The utility model discloses a multi-channel multi-concurrent communication mask all-in-one machine which comprises a mask body, a microphone, a headset, a signal processing board card and a power supply module are arranged in the mask body, and the signal processing board card comprises a wireless transceiver module, a power amplification module, a microprocessor, a key control module and a storage module. According to the technical scheme, the LORA chip is adopted as the core of the wireless receiving and transmitting module, efficient and stable remote communication is achieved, meanwhile, the all-in-one machine supports the multi-channel communication function, the problem that communication between different working areas or working groups is prone to mutual interference is solved, and the working efficiency is improved. A user can easily switch communication channels through the key control module, and the requirement for efficient communication of multiple teams at the same time is met. Not only is communication flexibility improved, but also cooperation efficiency and safety in mine operation are enhanced.

The utility model discloses a multi-user QKD system based on OCC codes. The system comprises a sender and a plurality of receivers. The sender comprises an optical signal generator, an OCC code generator and a modulator; the receiver comprises an optical signal receiver and a demodulator. The utility model discloses a multi-user QKD (Quantum Key Distribution) system based on an OCC (Optical Code Code), which realizes one-to-many multi-user QKD communication by utilizing the OCC (Optical Code Code), better reduces crosstalk among multiple access information, can improve the multi-user capacity with the maximum capacity, and uses the same frequency band to carry out QKD communication in the same channel by utilizing the OCC and a code division multiplexing technology. The system has the advantages of high spectrum utilization rate, large system capacity, strong anti-interference capability and the like, does not occupy too many channel resources, is simple in structure and has expansibility.

The utility model discloses a long-distance multi-channel off-line communication system, and relates to the technical field of communication. The system comprises a vital sign monitoring device, a LoRa base station supporting multi-channel communication, relay equipment and a server, the relay device is in communication connection with the LoRa base station, and the LoRa base station is in communication connection with the server; when the communication distance between the vital sign monitoring device and the LoRa base station is smaller than or equal to a set first upper limit distance, the vital sign monitoring device is in communication connection with the LoRa base station; and when the communication distance between the vital sign monitoring device and the LoRa base station is greater than a first upper limit distance, the vital sign monitoring device is in communication connection with the relay equipment. According to the utility model, a public network does not need to be connected, the safety of data transmission is improved, the real-time performance and the stability of vital sign data in a complex outdoor environment are also improved, and a powerful guarantee is provided for the safety of outdoor training and work.

This invention provides a multi-channel distributed anti-interference microwave sensor, wherein the detection channel is formed by the center frequency of the operating frequency of the multi-channel distributed anti-interference microwave sensor and has a certain bandwidth. Under the condition of meeting the uniformity of the process steps of mass production, the mass-produced microwave sensors based on discrete multi-frequency anti-interference have different detection channels or can be set to have different detection channels in the same ISM band according to the division of multiple center frequencies that are spaced apart from each other, thus presenting a multi-channel distribution state. In the actual use of the multi-channel distributed anti-interference microwave sensor, co-frequency interference between the multi-channel distributed anti-interference microwave sensors in multi-microwave sensor application scenarios is avoided, thereby ensuring the working stability of the multi-channel distributed anti-interference microwave sensor in multi-microwave sensor application scenarios.

The utility model provides a magic wand and magic control system with multi -channel remote control function, and the magic wand includes handle and the pole body connected with handle, is equipped with first main control module, wireless transmitting module and trigger unit on the handle. First main control module is used for receiving the remote control signal of trigger unit feedback and sends wireless control signal to magic props through wireless transmitting module based on remote control signal, and first main control module is used for receiving the switching signal of trigger unit feedback and switches the magic props of wireless connection of wireless transmitting module based on switching signal. Through the configuration wireless transmitting module, let magic wand and multiple magic props carry out the code wireless connection to the switch, and through the configuration trigger unit, can realize the magic props of magic wand switching control, to realize a magic wand can control multiple magic props, realize multi -channel remote control function, improve the magic nature of magic performance.

The LIDAR system outputs a system output signal and receives a system return signal that includes light from the system output signal that was reflected by an object located outside of the LIDAR system. The LIDAR system includes data lines that each carries a different preliminary channel signal. A selection of the preliminary channel signals is beating at a beat frequency. Each of the preliminary channel signals in the selection of the preliminary channel signals is generated from light included in the system return signal. The LIDAR system includes bandpass filter components. Each of the bandpass filter components receives a different one of the preliminary channel signals and outputs a channel signal on a different filtered data line. The channel signal output by each of the bandpass filter components is a representation of the preliminary channel signal received by the bandpass filter component filtered by one or more bandpass filters included in the bandpass filter component.

The invention relates to the technical field of computers. The H5 answer high-concurrency real-time interaction method and system based on edge calculation are provided, and the method comprises the steps that logic isolation processing is carried out in an edge node cluster based on user geographic position coordinates and answer type labels, and channel fragments are generated; processing the user equipment identifier through a fragment hash algorithm, and generating a binding relationship between the user and the target channel fragment; performing fission operation or merging operation on the channel fragments based on the channel load index to generate a new channel fragment state; based on the binding relation and the new channel fragmentation state, edge node internal closed-loop processing is carried out on the same-channel user messages, and a real-time interaction result is generated; and based on a real-time interaction result, performing priority ranking processing on the multi-channel messages to generate a message pushing sequence so as to reduce cross-regional transmission delay, improve burst traffic carrying capacity and enhance high-value interaction real-time performance.

The LIDAR system outputs a system output signal and receives a system return signal that includes light from the system output signal that was reflected by an object located outside of the LIDAR system. The LIDAR system includes data lines that each carries a different preliminary channel signal. A selection of the preliminary channel signals is beating at a beat frequency. Each of the preliminary channel signals in the selection of the preliminary channel signals is generated from light included in the system return signal. The LIDAR system includes bandpass filter components. Each of the bandpass filter components receives a different one of the preliminary channel signals and outputs a channel signal on a different filtered data line. The channel signal output by each of the bandpass filter components is a representation of the preliminary channel signal received by the bandpass filter component filtered by one or more bandpass filters included in the bandpass filter component.

The invention relates to a method and adaptive system for multichannel audio distribution between at least one stereo audio source (SA1, SA2, SA3, SA4) and at least one playback device (EP, EA), such as a passive or active loudspeaker. The system comprises a hub (H) capable of receiving stereo audio (ST) content from at least one audio source (SA1, SA2, SA3, SA4), and at least one linking device (L1, L2) connected by wire to a playback device (EP, EA). The hub (H) is capable of converting any stereo content (ST) into a set of spatialized audio streams, each stream being associated with and transmitted to a corresponding linking device (L1, L2) according to a predetermined playback configuration, while the linking device (L1, L2) provides the loudspeaker with the spatialized audio stream it receives from the hub (H) for playback. To this end, the preferred communication protocol between the concentrator (H) and each link (L1, L2) is the WISA protocol.Figure from the summary: Fig. 1.

A watermark-based dynamic ad insertion (DAI) technique for presenting different users of content different advertisements based on the user's profile for content viewed on broadcast channels or in multichannel video programming distributor (MVPD) channels. A number of solutions issues with watermark-based DAI are presented. Interoperability is addressed by providing a multiplexing technique so that the DAI watermarks do not interfere with other watermarks, such as ATSC 3.0 watermarks. Reliability is addressed by providing a matched filtering technique. Security is addressed by providing a mutual authentication technique.

A watermark-based dynamic ad insertion (DAI) technique for presenting different users of content different advertisements based on the user's profile for content viewed on broadcast channels or in multichannel video programming distributor (MVPD) channels. A number of solutions issues with watermark-based DAI are presented. Interoperability is addressed by providing a multiplexing technique so that the DAI watermarks do not interfere with other watermarks, such as ATSC 3.0 watermarks. Reliability is addressed by providing a matched filtering technique. Security is addressed by providing a mutual authentication technique.

A method for converting a vehicle audio into a surround sound and a sound system are provided. The method includes: extracting features of an audio data for debugging based on a vehicle audio signal; performing classification according to the extracted features to separate the audio data into a plurality of single audio signals; mixing the plurality of separated single audio signals, and recording parameters of the current sound mixing algorithm as original sound mixing parameters; pre-configuring a plurality of spatial reverberation modes; debugging the original sound mixing parameters; and determining and saving optimized audio channel equalization parameters and optimized sound mixing parameters corresponding to the spatial reverberation modes as the multi-channel surround sound conversion parameters.

The invention provides a literature automatic typesetting and publishing method and system based on multi-channel topic mapping, and relates to the technical field of academic literature dissemination, first, original literature information entries in a multi-dimensional table are obtained, full-text extraction of literatures is triggered, and standardized academic structure markup language texts are obtained through literature elaborate induction model processing; calling a channel theme mapping dictionary according to a to-be-published channel identification field, converting a structure node into an inline style block, and generating an image-text hypertext markup language text; then obtaining a target we-media platform image-text message publishing interface parameter set, and completing material matching and data structure body combination; and finally, calling an interface to submit the data structure body, obtaining draft generation state information and writing back to the multi-dimensional table. According to the method, whole-process automation of literature typesetting and publishing is realized, publishing efficiency and accuracy are improved, and rapid propagation of scientific achievements is promoted.