29 results about "Radio broadcasting" patented technology

A method comprising: at an importer of an IBOC digital radio broadcasting system: establishing a data link to an audio client configured to buffer audio from an audio source over a buffering duration, to produce buffered audio; receiving, from the audio client, an indication of the buffering duration; identifying a logical channel of an IBOC waveform assigned to the audio client and configured to transmit PDUs of the audio at a PDU rate; computing a quantized number of PDUs that is greater than one into which the buffered audio is to be divided at the audio client based on the buffering duration and the PDU rate; sending, to the audio client, an indication of the quantized number of the PDUs; and upon sending importer data requests to the audio client over the data link, receiving, from the audio client, client data responses each including the quantized number of the PDUs.

The present application discloses a method and a device for notifying a power disconnection. The invention relates to a method and a device for transmitting a message from a first node device to one or more node devices that are neighbours of said node device, said node devices belonging to a power supply network using power lines and radio communication. According to the invention: - said first node device detects (E40) a disconnection of an electricity supply, - said first node device checks (E42) in a routing table if it is connected to a neighbouring node device by a radio link, - if yes, said first node device sends (E43) a unicast message to said neighbouring node device by said radio link indicating a disconnection of said electricity supply to said first node device, - if no, said first node device sends (E44) a radio broadcast message indicating that said first node device detected a disconnection of said electricity supply.

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.

The present application provides a sound output device with a lamp, which is a new device capable of functioning as a lamp and outputting sound. The sound output device with a lamp includes a lamp portion extending in an axial direction, an antenna portion, a sound output portion, and a control portion. One end and the other end of the antenna portion are connected to one side and the other side of the lamp portion with respect to the central portion in the axial direction. The portion between the one end and the other end of the antenna portion extends in the axial direction and is disposed apart from the lamp portion at the periphery of the lamp portion. The control portion is configured to output sound corresponding to a radio wave of a radio broadcast received by the antenna portion from the sound output portion.

A system is provided for transmitting accurate geospatial position and time using radio transmission without the use of satellite signals. The positioning and timing system uses uncorrelated standard radio broadcast signals. These radio broadcast signals are transmitted from known locations defined by latitude and longitude at assigned frequencies, respectively, and transmit modulated or unmodulated carrier signals, respectively. A reference unit at a known fixed location receives the nearby standard broadcast signal, samples the frequency and content values ​​of the signal, broadcasts the measured frequency and content data approximately simultaneously with a time mark representing the measurement time, and further broadcasts its location in latitude and longitude. A mobile unit at an unknown location to be desired receives the nearby standard broadcast signal, measures the arrival time of the broadcast, and records the time of the measurement.

1. Name of the product subject to this design: Radio (SY-383). 2. Purpose of this design: This design is used for radio broadcast reception and wired and wireless audio playback. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

Figure 1 shows an apparatus for decoding according to an embodiment. The apparatus comprises an interface (110) for receiving a plurality of ATSC link layer protocol packets, each ATSC link layer protocol packet comprising a packet header and a packet payload, where the packet payload of an ATSC link layer protocol packet of the plurality of ATSC link layer protocol packets comprises one or more flagged and / or one or more icons of image data. Furthermore, the apparatus comprises a decoding unit (120) for decoding a packet payload of the ATSC link layer protocol packet to obtain image data.

A method performed by at an importer-exporter of an in-band on-channel (IBOC) digital radio broadcasting system comprises: receiving, from a first audio client, first protocol data units (PDUs) (first PDUs) of encoded main audio and that include first sequence numbers that progress in a first order; sending the first PDUs for transmission over a logical channel of an IBOC waveform; receiving, from a second audio client, second PDUs of encoded non-main audio and that include second sequence numbers; aligning the second PDUs to the first PDUs by aligning the second sequence numbers to the first sequence numbers, to produce aligned second PDUs; and switching to sending the aligned second PDUs for transmission over the logical channel in place of the first PDUs such that the second sequence numbers of the aligned second PDUs after switching maintain the first order of the first sequence numbers as established prior to switching.

A radio broadcast receiver comprising: a memory; and a processor that is coupled to the memory, and, when executing a program stored in the memory, performs operations. The operations include: receiving analog quality information indicating a reception quality of an analog radio based on a broadcast radio including a digital radio and the analog radio; and determining switching of a radio source from one of the broadcast radio and an IP radio to the other of the broadcast radio and the IP radio based on the analog quality information indicating the reception quality of the analog radio.

The invention is suitable for the technical field of aircraft navigation, and provides a radio and vision combined low-altitude multi-mode navigation method and system, and the method comprises the steps: constructing a grid navigation reference network which continuously covers a target area; the fusion navigation beacons continuously broadcast radio broadcast information containing absolute coordinates and identity information of the communication signal towers where the fusion navigation beacons are located outwards; and when the satellite navigation positioning information is unavailable, the aircraft performs preliminary positioning based on the received at least one piece of radio broadcast information, and flies to the site of the fused navigation beacon broadcasting the radio broadcast information. According to the invention, the existing communication signal tower infrastructure is multiplexed to construct the gridding navigation reference network, and when the aircraft is in a complex environment which causes attenuation or failure of satellite navigation signals, the aircraft can be seamlessly switched to radio and visual navigation signals provided by signal tower beacons; the problems of coverage blind areas and monitoring interruption caused by excessive dependence on a single satellite navigation signal are effectively solved.

To provide a receiving device that can obtain sufficient reception intensity for radio waves of a target frequency when desensitization occurs.SOLUTION: A receiving device includes: a tuning circuit connected to an antenna mounted on a mobile body and capable of receiving radio broadcast waves in multiple frequency bands; an amplifier circuit connected to an output side of the tuning circuit; a switch element provided between the antenna and a reference potential point; a first control unit that turns on the switch element when an electric field of the radio waves received by the antenna is equal to or greater than a first threshold; an AGC amplifier connected to the antenna; and a keyed AGC circuit connected to the AGC amplifier. Therein the keyed AGC circuit reduces a gain of the AGC amplifier when the electric field of the radio waves received by the antenna becomes smaller than a second threshold.SELECTED DRAWING: Figure 1

A radio apparatus for a vehicle and a control method thereof are provided. An aspect of the present disclosure provides a method of controlling a vehicle radio device, the method comprising: checking a program name of a program of an internet radio being listened; searching for a frequency of a first analog radio having the program name, the first analog radio being a radio broadcast transmitted by a radio station; checking the electric field intensity of the first analog radio at the frequency; modulating the internet radio into a second analog radio when the electric field intensity is less than the threshold; and transmitting the second analog radio.

A method of controlling operation of an end device using a one-way radio broadcast includes sending an encrypted message from a client application of a computing device to a first network server, sending the encrypted message from the first network server to a second server included with radio broadcast automation equipment, transmitting the encrypted message in a radio broadcast signal using one or more radio broadcast transmitters, receiving the radio broadcast signal at an end device, and decrypting the encrypted message using the end device. The encrypted message includes control information to control operation of the end device.

1. The name of the design product: display screen panel with radio broadcast control graphical user interface. 2. The use of the design product: for displaying graphical user interface. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: design 1 front view. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: the interface is used for listening to radio broadcast. 7. The human-computer interaction mode of the graphical user interface: the user touches any one of the three window switch options in the interface to interact with the interface, and selects to listen to different radio broadcasts. 8. The display screen panel can be used for radio, clock, mobile phone, watch, tablet computer, computer, calculator, television, monitor, projector, personal digital assistant, palm computer, vehicle display instrument.

A radio system includes an audio device, and a control device operatively connected to the audio device to store a first radio frequency of the audio device as a preset frequency, wherein the control device may be configured to determine whether a second broadcast signal received through a second radio frequency is equal to a first broadcast signal received through the first radio frequency stored in a preset list when the second radio frequency of the audio device is added as the preset frequency, generate the preset list including the first and second radio frequencies when the first broadcast signal is different from the second broadcast signal, and generate the preset list including the first or second radio frequency when the first and second broadcast signals are broadcast signals of a same radio broadcast.

Method for synchronizing a reference image and an additional image in a digital radio broadcast, the method comprising: Generating at least one single image containing a predefined identifier to inform a recipient in advance about the start time of the reference image; Providing at least one single image containing the specified identifier to a receiving page; and where the identifier is a predefined pattern to communicate the start time of the reference image; and where the specified pattern is a specific pattern for bit values ​​of a pixel in the single image.

1. The name of the design product: radio. 2. The use of the design product: for radio, WIFI streaming, TF card, Bluetooth, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

Systems and methods for synchronizing a portion of the radio broadcast with a portion of a TV broadcast and switching from TV to radio broadcast upon detecting a triggering condition are described. A determination is made if radio and TV broadcasters are within a local transmission range (e.g., connected via a wire), to broadcast live event feeds directly to each other. If broadcasters are within local transmission range, then the radio broadcast's feed may be multiplexed with the audio feed of the TV broadcast. If they are farther apart, then their clocks may be synchronized, and the corresponding audio packets of the radio and TV broadcasts may be multiplexed together based on a time stamp from the synchronized clocks and delivered to the client device. Upon detecting the triggering condition, the client device may switch from the TV broadcast to the synchronized radio broadcast.

The invention relates to the technical field of voice recognition, and discloses a voiceprint recognition method and system for a vehicle-mounted child safety seat, and the method comprises the steps: synchronously collecting the spatial radio frequency signal intensity of a microphone audio signal and a radio broadcast signal of a preset frequency band; generating an interference mark for the microphone audio signal of which the intensity exceeds a preset intensity threshold value; inputting the microphone audio signal with the interference mark into a pre-trained voiceprint recognition model; carrying out feature suppression processing on harmonic interference; generating a voiceprint judgment score; and when the voiceprint judgment score is higher than a preset compliance threshold, generating a final control authorization instruction. According to the invention, the spatial radio frequency signal intensity is introduced as the perception dimension, the corresponding interference mark is generated, and then the voiceprint recognition model is used for carrying out feature suppression and score judgment on the interference mark, so that the situation that the interfered child imitation voice is misjudged as a compliant adult instruction during voiceprint verification is effectively avoided.

Disclosed herein is a method for controlling a transmitter may include transmitting FM radio broadcast to a receiver, transmitting auxiliary data of a radio data system to the receiver and another transmitter at a first frequency, receiving auxiliary data of the radio data system at a second frequency from the other transmitter, and stopping the transmission of the auxiliary data of the radio data system at the first frequency based on that the auxiliary data of the radio data system at the second frequency corresponds to the auxiliary data of the radio data system at the first frequency.

A simulated shooting device based on attitude estimation and an ultra wide band technology comprises hardware equipment such as an image capturing device, an ultra wide band positioning device and a computer, and software programs such as human body attitude estimation, result judgment and process control. After the trigger is pulled, the image capturing device captures a front picture, and the position and posture of a human body in the picture are recognized through a posture estimation program. And meanwhile, the ultra-wideband positioning device judges the included angle and distance of other devices deviating from the ray of the device. And the control program judges whether to hit or hit the body part according to the posture estimation result, and judges the identity of the hit object according to the angle and distance of other devices. The process control program determines the score and broadcasts the event through radio, and the result is displayed through the sound image output device. The device is integrated in the shell of the simulation gun, so that the device has the characteristics of convenience in carrying and flexibility in movement; a distributed or centralized simulation shooting system can be realized by utilizing a plurality of sets of devices.

An audio system includes an audio device and a control device. The control device receives a second broadcast signal for an alternative frequency associated with the first broadcast signal with receive sensitivity of specified first reference sensitivity or more than the predetermined first reference sensitivity and verifies and stores a second radio frequency for transmitting the same broadcast as a radio broadcast of the first radio frequency, receives a third broadcast signal for the alternative frequency, when the first broadcast signal with receive sensitivity less than the specified first reference sensitivity, but greater than or equal to specified reference sensitivity is received, and change the frequency of the audio device from the first radio frequency to a third radio frequency, and changes the frequency of the audio device based on the second radio frequency, when the first broadcast signal with receive sensitivity less than the specified second reference sensitivity is received.

A radio apparatus for a vehicle and a control method thereof. An aspect of the present disclosure provides a method of controlling a vehicle radio apparatus, the method comprising: checking a program title of a program of Internet radio being listened to; searching for a frequency of a first analog radio with the program title, the first analog radio being a radio broadcast transmitted by a radio station; checking an electric field strength of the first analog radio at the frequency; modulating the Internet radio to a second analog radio when the electric field strength is less than a threshold; and transmitting the second analog radio.

A vehicle includes an audio device including a radio tuner configured for receiving radio frequency signals, a radar configured for detecting radar data of a rear seat passenger, and a controller electrically connected to the radar, wherein the controller is configured to determine, in response that a radio broadcast is being played in the audio device, whether the rear seat passenger is sleeping based on the radar data detected by the radar, switch, if the rear seat passenger is sleeping, a radio mode from a normal playback mode to a sleep assistance mode, and change, in the sleep assistance mode, at least one of radio frequency and radio sound quality through the radio tuner.

An apparatus for managing a radio broadcast database includes: a first broadcast setting unit configured to: set a frequency of a first broadcast using a first tuner; a second broadcast setting unit configured to: set, using a second tuner, a frequency of a second broadcast in which broadcast information exists; an audio signal comparison unit configured to: receive a first audio signal of the first broadcast and a second audio signal of the second broadcast, and check whether the first audio signal and the second audio signal are similar to each other; and a broadcast information providing unit configured to, if it is determined that the first audio signal and the second audio signal are similar to each other, acquire second broadcast information related to the second broadcast, and store the second broadcast information in the radio broadcast database as first broadcast information related to the first broadcast.

A method performed by at an importer-exporter of an it1-band on-channel (IBOC) digital radio broadcasting system comprises: receiving, from a first audio client, first protocol data units (PDUs) (first PDUs) of encoded main audio and that include first sequence numbers that progress in a first order; sending the first PDUs for transmission over a logical channel of an IBOC waveform; receiving, from a second audio client, second PDUs of encoded non-main audio and that include second sequence numbers; aligning the second PDUs to the first PDUs by aligning the second sequence numbers to the fust sequence numbers, to produce aligned second PDUs; and switching to sending the aligned second PDUs for transmission over the logical channel in place of the first PDUs such that the second sequence numbers of the aligned second PDUs after switching maintain the first order of the first sequence numbers as established prior to switching.

The invention belongs to the technical field of radio broadcast communication, and relates to a method and a system for suppressing amplitude modulation broadcast audio distortion. The method comprises the following steps: constructing a transmitter predistortion system; generating a training sequence signal; performing complex number field expansion on the input real number field audio signal; acquiring an output signal of the power amplifier by using a feedback channel, and demodulating to obtain a feedback complex baseband signal; establishing a model of the power amplifier by using the memory polynomial model, and extracting pre-distortion parameters; and updating the lookup table in the predistorter. According to the invention, the problem of feedback signal amplitude drop caused by phase desynchrony in traditional real number coherent demodulation is solved, and the demodulation precision is improved; a memory polynomial model is adopted, amplitude and frequency response distortion is corrected, and linear and nonlinear distortion of a transmitter power amplifier is effectively compensated; the training sequence is utilized to ensure that model parameters can cover the whole dynamic range and working frequency band of the power amplifier; the audio harmonic distortion can be obviously reduced, and the frequency response flatness is improved.

The technical problem this invention aims to solve is to provide an emergency rescue aerial signal generator based on a micro-drone. This signal generator effectively increases the probability of being spotted by rescued personnel, can be carried through security checks, and can broadcast GPS coordinates, effectively reducing the difficulty of rescue and location after discovery. The signal generator includes a drone body, a power and control compartment, and a payload compartment. The upper end of the payload compartment is detachably mounted at the lower end of the power and control compartment. The payload compartment is equipped with a radio broadcast chip and a high-intensity illumination device. Based on a micro-drone design, the light signal remains in the air for a longer period, greatly increasing the probability of being spotted by rescued personnel. The device mainly consists of a micro-drone and electronic components, can be carried on public transportation such as trains and airplanes through security checks, and broadcasts GPS coordinates via the radio broadcast chip, facilitating rescue and location.

The utility model relates to the technical field of mobile equipment, and discloses a flip phone. The flip mobile phone provided by the utility model comprises a mobile phone body, the mobile phone body comprises a first flip cover, a second flip cover and a rotating shaft, and the first flip cover is rotatably connected with the second flip cover through the rotating shaft; the communication device is arranged on the first flip cover and / or the second flip cover, the communication device comprises a communication antenna, a radio broadcast signal processing module and a communication signal processing module, and at least part of the communication antenna is arranged on one side of the rotating shaft; the radio broadcast signal processing module and the communication signal processing module are electrically connected with the part, close to the rotating shaft, of the communication antenna. According to the flip phone, the radio broadcast signal processing module and the communication signal processing module are electrically connected with the part, close to the rotating shaft, of the communication antenna, so that noise caused by multiplexing of the communication antenna by the radio broadcast signal processing module and the communication signal processing module is reduced; the problem that mobile communication is greatly interfered due to multiplexing of a communication antenna is solved.