142 results about "Radio receiver" patented technology

A system and method of targeting spatialized audio to ears of a listener, comprising sensing characteristics of an environment comprising at least one human by receiving radio frequency signals with a radio receiver; using the sensed characteristics in at least one automated processor to analyze at least one human dynamic physiological pattern of each human and estimate a body pose and head position within the environment of each human based on the sensed characteristics and the at least one human dynamic physiological pattern; and using an estimated position of the ears of each human in conjunction with a head-related transfer function in a spatial audio system to generate spatialized audio.

According to an aspect, there is provided an all-digital phase-locked loop, ADPLL, for a radio receiver, transmitter or transceiver. The ADPLL comprises a time-to-digital converter for generating a digital time signal based on an external reference clock signal and a feedback signal, a switched capacitor digitally controlled oscillator, SC-DCO, for generating a radio frequency signal used as the feed-back signal, a phase-locked loop for controlling the SC-DCO based on the digital time signal for achieving a phase and frequency lock and digital processing means. The digital processing means are configured to maintain, in at least one memory, a lookup table defining a plurality of switching configurations of the SC-DCO corresponding to a plurality of frequencies of the radio frequency signal and to cause the phase-locked loop controller to adjust the switching configuration of the SC-DCO according to the lookup table.

An imaging system (MIS), optionally a medical imaging system, with wireless communication capability and related method. The imaging system comprises a gantry (RG) rotatable around a rotation axis. The gantry includes a detector device (D) capable of recording, in plural spatial positions, measurement data in relation to a subject (such as a patient) (PAT) to be imaged. The system also includes a radio transmitter (TX) for generating a directed radio beam propagatable along a propagation axis to transmit the measurement data to a radio receiver (RX). The radio transmitter (TX) is arranged at the rotatable gantry and is operable so that the propagation direction intersects the rotation axis in a location that is situated away from the rotatable gantry.

Methods, systems, and devices for wireless communication are described. Techniques described herein relate to a user equipment (UE) that may include a wake-up radio in addition to a main radio to monitor a wake-up signal when the UE is in a sleep mode. The wake-up radio receiver may use less power than the main radio. In some examples, a first UE may indicate to a wireless node (e.g., a control sidelink UE or a network entity) that the UE is capable of transmitting a wake-up signal to a second UE. In such examples, the wireless node may send a wake-up signal intended for the second UE to the first UE based on the capability report. The first UE may relay the wake-up signal to the second UE. In response to receiving the wake-up signal, the second UE may wake up the primary radio of the second UE for communication.

Systems, methods, and apparatuses for multiple main radio receiver (MR) ramp-up times for low power wake-up signal (LP-WUS) monitoring by a wireless transmit / receive unit (WTRU) are provided. The WTRU determines and / or the WTRU receives configuration information indicative of a plurality of MR ramp-up times. The plurality of MR ramp-up times are based on a continuous time duration for which the WTRU monitors for the LP-WUS. The WTRU determines one or more physical downlink control channel (PDCCH) monitoring resources as a function of one or more MR ramp-up times of the plurality of MR ramp-up times. The WTRU determines whether to monitor the PDCCH outside a discontinuous reception (DRX) on duration timer and / or during the DRX on duration timer based on one or more conditions. The plurality of MR ramp-up times reduce latency caused by MR sleep states, increase efficiency of scheduling data transmission and / or reception, and reduce WTRU power consumption.

A radio receiver device is provided. The radio receiver device is configured to receive a radio signal comprising a data packet with a packet duration, said data packet comprising a first portion and a second portion; to determine an initial estimate of the packet duration using data included in the first portion; to determine a correction factor for said initial estimate of the packet duration using data included in the second portion; and to combine the initial estimate and the correction factor to determine a refined estimate of the packet duration.

A small electric remote-controlled flatbed cart that is easy to store, wherein the main body includes an inner layer of the main body and a wheel fixing bracket, the inner layer of the main body is installed on the wheel fixing bracket, the inner layer of the main body is installed with a lithium battery, an integrated electric adjustment board, a main controller and a radio receiver, the outer rings of the wheels are respectively installed at the four corners of the bottom of the wheel fixing bracket, and the outer rings of the wheels are wrapped with a motor; the main controller is connected to the radio receiver, and the handheld transmitter is frequency-connected to the radio receiver; and a spare push-pull rod system is provided on the main body, and a rebound pressure plate and a lateral rebound pressure plate are provided on the spare push-pull rod cross bar of the spare push-pull rod system, and the push-pull rod is quickly stored by utilizing the squeezing force of the spring assembly and the vehicle body, which effectively reduces the jamming phenomenon that is prone to occur in traditional methods, and can also fix the position of the push-pull rod after storage, and expand the actual effective practical area of ​​the flatbed cart, so that the appearance is more neat and beautiful after storage.

The invention relates to a low power wireless network system. A low power wireless network system, a wireless network node, a wireless network hub, and a method for transmitting data frames on a low power wireless network system are provided. An example wireless network system includes an access point and a plurality of wireless nodes, the wireless nodes including a destination wireless node and a wireless hub. The access point is configured to transmit data frames to a plurality of wireless nodes according to a wireless network protocol. The destination wireless node includes a primary connection radio module configured to generate a communication signal according to a wireless network protocol and a wake-up radio receiver configured to receive a low-power wake-up signal. The wireless hub is configured to transmit a low power wake-up signal to the destination wireless node if the beacon frame from the access point indicates that the buffered data frame is intended for the destination wireless node.

Method for representing environmental structures in an occupancy grid (1) for a driver assistance system (A1,A2,AN), wherein the environmental information is provided by at least one of the following devices - Environmental sensor, in particular camera, radar or lidar sensor - Navigation device - Radio receiver (c2x), characterized in that a value for a criticality (K) of the environmental structure is stored in the occupancy grid (1) and a function of a driver assistance system (A1,A2,AN) is controlled based on a hazard risk, wherein the criticality (K) is a measure of the negative consequences of driving over these environmental structures, wherein the criticality is based on the damage to be expected when driving over the area and is adapted to known tables for classifying injury severity.

A radio receiver includes a radio frequency (RF) receiver circuit to receive a radio broadcast signal, an internet network interface, a display, a memory, a processing circuit, and a client application including instructions for execution by the processing circuit. The client application is configured to determine geographic location information for the radio receiver, determine a radio broadcast available to the radio receiver using the geographic location information, select metadata associated with the radio broadcast available to the radio receiver from metadata stored in the memory, and present information included in the selected metadata using the display in accordance with the received radio broadcast signal.

System for a real-time radio receiver network, wherein the system comprises: a remote digital antenna digital receiver (“RDADR”) with a processor; a first remote digital antenna (“RDA”) comprising a processor, at least one receiver and at least one antenna; a second RDA with a processor, at least one receiver and at least one antenna, an audio source that is coupled to the transmitter; and an audio output device coupled with the RDADR, where the RDADR, the first RDA and the second RDA are coupled to each other via a digital bus, wherein the first RDA and the second RDA attempt to receive one or more digital signals from a transmitter, and if the one or more digital signals are received without error by the first RDA or the second RDA, the RDA that has received the one or more error-free digital signals transmits the one or more error-free digital signals via the digital bus to the RDADR, where the audio source generates one or more digital signals, and where the audio source is at least a microphone or a musical instrument.

To provide a disaster prevention radio having a manual power generation device and capable of being accommodated in a bottle holder with good fit.SOLUTION: A disaster prevention radio includes a main body having a substantially cylindrical shape and a substantially disc-shaped pedestal. The main body has a first central axis line extending a vertical axis. The pedestal is located below the main body, and includes a first upper main surface and a first lower main surface. The first central axis line passes a center of the pedestal in view of a vertical direction. The main body contains: a radio receiving apparatus; and a power generation device that can supply power to the radio receiving apparatus by rotating a rotor. The pedestal is connected to the rotor so as to be rotatable relative to the main body about the vertical axis, and has an external dimension approximating a 500 ml drinking plastic bottle.SELECTED DRAWING: Figure 1

A radio receiver (20) for determining the position of a sonar buoy (22) is disclosed, comprising a receiving unit (24) and a data processing unit (26). The receiving unit (24) is configured to continuously, and in particular continuously, receive a sequence of radio signals (28) from the sonar buoy (22) from the moment it is deployed. The data processing unit (26) is configured to determine the received level of the radio signals (28) in the sequence of radio signals and, based on a plurality of received levels of different radio signals (28) in the sequence of radio signals, to determine the position of the sonar buoy (22) absolutely or relative to the radio receiver (20).

The present invention relates to a wirelessly controlled magic wand comprising a handle and a light block arranged at one end of the handle, wherein a light ball is firmly embedded in the light block and a radio receiving unit is firmly provided inside the handle, wherein the light ball is connected to the radio receiving unit by means of a connecting cable, and adjacent to the radio receiving unit in the handle, a speaker is firmly arranged, which is connected to the radio receiving unit; wherein a control device is provided which matches the radio receiving unit, and within the control device, a radio transmitting unit is provided which matches the radio receiving unit, wherein the control device transmits a control signal to a radio receiving unit via a radio transmitting unit. The light block is made of a transparent material and has the shape of a pentagon.A battery, located next to the radio receiver unit, is securely integrated into the handle, and the speaker is attached to the end of the handle. Furthermore, the invention is very practical.

1. The name of this design product: radio receiver. 2. Purpose of this design product: a microphone used for news interviews. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

A radio receiver device is provided. The radio receiver device is arranged to receive a radio signal comprising a symbol sequence corresponding to a training sequence; to determine a first autocorrelation of said symbol sequence using a first autocorrelation latency; to determine a second autocorrelation of said symbol sequence using a second autocorrelation latency that is longer than the first autocorrelation latency; and to combine said first and second autocorrelations to determine an estimate of carrier frequency offset between the radio signal and the radio receiver device.

The invention discloses a ground-air control multi-channel received voice dynamic alignment method, which comprises the following steps of: 1, establishing SIP (Session Initiation Protocol) connection between a radio station gateway in an interphone system and an external radio station receiver, maintaining bidirectional RTP (Real-time Transport Protocol) keep-alive packet receiving and transmitting in a certain period, and receiving RTP effective voice packets in a certain period; 2, the radio station gateway adds an extension field in an RTP packet every fixed exploration time, and sends an RMM measurement request message to an external radio station receiver; 3, after receiving the RMM measurement request message, the external radio station adds an extension field in the RTP packet and replies an MAM measurement answer message; 4, different modes are selected to calculate receiving channel delays, normalization is carried out according to RTP receiving precision, the channel with the maximum delay is selected as a reference channel, and normalization values needing to be increased by other channels are calculated; and step 5, the radio gateway updates the alignment value of each channel, and after the alignment of the received voice of each channel is achieved, the received voice is sent to a voice server.

The present invention discloses a heterogeneous collaborative intelligent pesticide applicator structure for cash crops in hilly areas and a path tracking method thereof. It belongs to the field of agricultural machinery technology. It comprises a pesticide applicator body 1, a lifting frame 2 fixed at the front end of the pesticide applicator, a foldable pesticide applicator rod 4 fixed on the lifting frame, a medicine box bracket 9 fixed at the rear end of the pesticide applicator, and a medicine box 8 fixed on the bracket. The pesticide applicator body adopts a crawler-type double-layer platform design, including a crawler-type mobile chassis 11, a double-layer bracket 12, and a central controller and drive circuit control board 6, a water pump 7, a data acquisition and communication module 3, a drone 5 and a drone wireless charging platform 10 are fixed on the bracket; the data acquisition and communication module includes a laser radar 32, a visual sensor 31, a Beidou satellite antenna 33 and a radio receiver 34. The present invention designs corresponding structures and path tracking methods for pesticide application operations in hilly areas, and ultimately realizes precise pesticide application and path tracking of heterogeneous collaborative intelligent pesticide applicators.

A method of detecting noise in an audio signal of a radio receiver includes transforming a time-domain audio signal into frequency-domain blocks, and using a stored noise profile corresponding to a component of the radio receiver, generating in the radio receiver at least a first metric based on the frequency-domain blocks. In addition, the method includes, in the radio receiver, based on the first metric, detecting a presence of noise intruding into an active channel from another channel.

To provide a motorized switch control unit for easily converting existing manual switches and motorized switches of the AC power supply into motorized switches of the DC power supply. A motorized device control unit (10) for opening and closing a switching device by a motor using a remote control comprises a control unit (20), a radio receiver (30), a rechargeable battery (40), a unit housing (50) and a solar panel (60). The control unit (20) is connected to the motor cable (4) of the motor and controls the motor. The radio receiver (30) is connected to the control unit (20) and receives radio signals from the remote control. The rechargeable battery (40) powers the control unit (20), the radio receiver (30) and the motor.The unit enclosure (50) is attached around the switching device and houses the control unit (20), the radio receiver (30) and the rechargeable battery (40) inside. The solar panel (60) is attached to the outer surface of the enclosure (50) and charges the rechargeable battery (40). [Fig.2].

Aspects of this disclosure relate to frequency offset compensation in a radio receiver. In embodiments of the disclosure, a frequency domain orthogonal frequency-division multiplexing signal can be received, and a phase error offset in individual frequency segments of the frequency domain orthogonal frequency-division multiplexing signal can be compensated for based on estimates of the phase error offset for the individual frequency segments. Related radio receivers and radio systems are disclosed.

System for detecting traffic light phases for autonomous and semi-autonomous vehicles, comprising a radio transmitter arranged on a traffic light system, which emits a fixed radio frequency in the MHz range for each signal phase, and a radio receiver integrated in the vehicle, which is configured to selectively detect the emitted frequencies and to determine the current signal phase of the traffic light system from them.

A gaming machine having an audio channel outputting game sound and an audio channel intaking microphone sound and outputting chat sound is coupled with a headset having earpieces and a microphone and a Bluetooth transceiver in the headset for sending and receiving the microphone and chat sounds. A radio receiver or wired connection in the headset receives the game sounds. Circuitry in the headset is connected between the transceiver and receiver for mixing the microphone, chat, and game sounds and feeding them all to the earpieces.

Radio receiver for a radio transmission system (100, 110, 120, 130), wherein a message (101) either (a) is sent as a whole data packet (102) in the radio transmission system (100) without forward error correction, or (b) is sent in the radio transmission system (110) as a data packet (103) divided into sub-data packets (103_1-103_n), wherein the sub-data packets (103_1-103_n) are sent sequentially and are individually decodable or (c) is sent in the radio transmission system (120) as a data packet (104) divided into partial data packets (104_1, 104_n), wherein the partial data packets (104_1, 104_n) are sent one after the other, or (d) is transmitted in the radio transmission system (130) as a data packet (106) using a chirp spreading spectrum, wherein the radio receiver has the following features: an independent power supply in the form of a battery (204, 304) or a photovoltaic arrangement (305), and a first antenna (201, 301) for receiving radio signals from a radio transmitter of the radio transmission system (100) and a second antenna (202, 302) for receiving the radio signals from the radio transmitter of the radio transmission system (100), wherein the first (201, 301) and second antenna (202, 302) are provided for receiving a uniform type of radio signal, wherein the radio receiver adjusts its reception range to the first antenna (201, 301) or second antenna (202, 302) depending on the reception of the radio signals from the radio transmitter.

The mixer-first topology of receivers do not include low-noise amplifiers (LNA) preceding the mixer. The Mixer-First topology of radio receivers utilizes a direct-conversion quadrature mixer to down convert an RF signal to baseband, where a Hilbert Transform filter is used for sideband selection. When a switching mixer is used, the mixer-first receiver is capable of extremely high dynamic range and linearity. The downfall of the mixer-first topology is poor out-of-band signal rejection. A mixer-first receiver is described which achieves third-harmonic rejection without bandpass filtering proceeding the mixer.

The utility model provides a radio device and an earphone. The radio device comprises a shell, a microphone, a connecting piece and a light-emitting piece. An inner cavity is defined by the shell, and the shell is provided with a first opening communicating the outside with the inner cavity. The microphone is located in the inner cavity and provided with a sensing opening, and the sensing opening is suitable for collecting sound signals. The connecting piece is located in the inner cavity and provided with a first channel, one end of the first channel communicates with the first opening, and the other end of the first channel communicates with the sensing opening. The light-emitting part is located in the inner cavity and configured to emit light so that the light can penetrate through the connecting part and the first opening and reach the outside. The light emitted by the sensing opening and the light emitting part is communicated to the outside through the first opening, so that the sound receiving device is simpler and more attractive, meanwhile, the internal structure of the sound receiving device is simplified, and the arrangement space of the accommodating cavity is more sufficient. Therefore, according to the radio device, the structural arrangement of the microphone and the light-emitting part is simplified, and the arrangement space of the accommodating cavity is more sufficient.

Methods and systems for replacement of advertisements received over an over-the-air radio broadcast signal with IP-delivered targeted advertisements are provided. The methods include a method for processing an audio broadcast signal in a broadcast radio receiver, wherein an ad insertion start sample count that indicates the start of an original advertisement content is received at the broadcast radio receiver. After synchronization of the transmitted and the received audio streams, a targeted advertisement content which replaces at least some of the original advertisement content is inserted in the audio stream starting with the sample associated with the ad insertion start sample count. Replacing original advertisement content with targeted advertisement content ends with a sample of the audio stream associated with an ad insertion stop sample count.

The invention relates to an OFDM (Orthogonal Frequency Division Multiplexing) vector signal analysis device and method, belongs to the technical field of communication, and solves the problems of high test cost and low flexibility of an EVM (Error Vector Magnitude Error) of an OFDM system in the prior art. The method comprises the following specific steps: a signal generation module used for generating first baseband data of an OFDM signal; the software radio transmitter is used for caching the first baseband data, modulating the first baseband data into a corresponding radio frequency signal and transmitting the radio frequency signal to a tested system; the software radio receiver is used for collecting the radio frequency signal forwarded and output by the tested system, demodulating the radio frequency signal to obtain second baseband data of the OFDM signal, and sending the second baseband data to the data processing module; and the data processing module is used for processing the second baseband data based on the first baseband data to obtain a vector amplitude error of an output signal of the tested system, so that low-cost and high-flexibility EVM test is realized.

Method for operating an energy-autonomous radio receiver (105) of a preferably stationary gateway (100), wherein the radio receiver (105) receives telegrams (204, 205, 206, 209) in the form of bursts from at least one radio node (200), preferably a number X of radio nodes (200) of a network (214), and the radio receiver (105) opens receive windows (207, 207a, 208, 208a) for reception, wherein the radio receiver (105) is supplied with electrical energy for energy-autonomous operation by a battery (109), preferably a long-life battery, and / or by a photovoltaic cell arrangement (111), wherein the radio receiver (105) is a radio receiver of the SDR type comprising at least one microcontroller (105), in whose receive operation the radio signals received by the radio receiver (105) are converted into I / Q data (113) converted and the I / Q data 113 further processed using computation time-consuming algorithms,wherein, despite the reception of incoming bursts or radio signals by the radio receiver (105), computational operations of the microcontroller (105) are aborted or at least reduced in scope in the presence of predefined reception scenarios.

A system for localizing and object is disclosed herein. The system includes a radio transmitter disposed in a first location, a radio receiver disposed in a second location, a processor operatively coupled to the radio transmitter and to the radio receiver, and a memory operatively coupled to the processor. The memory includes instructions stored thereon that, when executed by the processor, cause the processor to send a first command to the radio transmitter to transmit a continuous radio wave, send a second command to the radio receiver to receive a reflected radio wave, receive from the radio receiver a signal indicating the reflected radio wave is within a spatial region of interest, and determining a three-dimensional location of the object within the spatial region of interest based on the reflected radio wave.