35results about "Broadcast system receiving" patented technology

The invention relates to a wireless broadcast connection system and method and a method for automatically configuring an emergency alarm area. The system comprises a wireless broadcast receiving device and an intelligent terminal, the wireless broadcast receiving device is configured to be used for receiving broadcast signals and wirelessly transmitting broadcast audio streams to the intelligent terminal, and the wireless broadcast receiving device comprises a broadcast receiving processing unit, a wireless communication module and a digital signal processing unit. The digital signal processing unit is connected with the broadcast receiving and processing unit and the wireless communication module, and is used for encoding the digital audio signal into an audio stream in a compressed format and carrying out transmission buffer management on the audio stream; wherein the digital signal processing unit is provided with a self-adaptive transmission control module, and the self-adaptive transmission control module has a bidirectional communication capability and is used for receiving a playing buffer area state feedback signal from the intelligent terminal and dynamically adjusting the transmission rate of sending the compressed audio stream to the intelligent terminal according to the feedback signal; therefore, synchronous control of buffer areas of a sending end and a receiving end is realized.

Disclosed technology includes a sensory prosthesis configured to automatically select a broadcast channel based on a comparison with a signal from a sensor of the sensory prosthesis. In an example, a sound processor automatically connects to an appropriate wireless broadcast audio channel by comparing the sound the sound processor receives on a microphone with the audio the sound processor receives from each of the wireless broadcast channels that the sound processor can receive. If the sound processor finds a match between the sound from the microphone and the sound from a broadcast, then the sound processor automatically selects the matching wireless broadcast channel. The sound processor then provides auditory stimulation to the recipient based on the selected broadcast channel.

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.

Aspects of the present invention relate to an outdoor emergency broadcasting device, an outdoor emergency broadcasting system, and a computer-implemented outdoor emergency broadcasting method. The outdoor emergency broadcasting device comprises: one or more speakers configured to provide an audible emergency message; a wireless receiver configured to receive an emergency alert from an external device; a controller; one or more batteries for providing power to the one or more speakers, wireless receiver and controller; and a device housing substantially enclosing the controller and the one or more batteries; wherein the controller is configured to: receive, from the external device via the wireless receiver, the emergency alert; determine audio output data in dependence on receiving the emergency alert; and transmit the audio output data to the one or more speakers for providing the audible emergency message.

The utility model discloses a novel vehicle-mounted Bluetooth radio for an electric vehicle, which comprises a mounting frame, two positioning frames are fixedly connected to the inner side wall of the mounting frame, a mounting plate is arranged in front of the mounting frame, a Bluetooth radio body is fixedly connected to the back surface of the mounting plate, and two T-shaped sliding grooves are formed in the back surface of the mounting plate. Through the arrangement of the mounting frame, the positioning frame, the mounting plate, the Bluetooth radio body, the T-shaped sliding groove, the fixing plate, the conical spiral sliding groove, the positioning block and the positioning hook, the conical spiral sliding groove is in sliding connection with the positioning block through the sliding connection of the sliding rod and the T-shaped sliding groove and the resilience force of the telescopic spring, and the positioning hook is matched with the positioning frame. The diameter value of the inner ring of the mounting frame is smaller than the diameter value of the outer ring of the mounting plate, so that the Bluetooth radio body and the mounting frame can be conveniently and quickly mounted, the Bluetooth radio body and the mounting frame can be conveniently dismounted, and the efficiency of replacing the Bluetooth radio body in the later period is greatly improved.

Provided is a broadcast signal output device and a vehicle having the same. The broadcast signal output device includes: a communicator configured to receive current location information; a memory in which map information is stored; a tuner configured to receive a broadcast signal having a frequency; a processor configured to determine whether a current location is a shadow area based on the current location information and the map information, determine whether a broadcast device is present upon determining that the current location is the shadow area, mute the received broadcast signal to prevent noise from being output upon determining that the broadcast device is absent, and control an output of the received broadcast signal upon determining that the broadcast device is present; and a sound outputter configured to output an audio signal in the received broadcast signal in response to a control command of the processor.

The utility model discloses a broadcast prompt system which comprises a broadcast console, a networked power amplifier module, a broadcast loudspeaker and a wearable intelligent device. The broadcast console is used for sending audio signals, the network audio decoding module with the MCU chip generates superaudio signals when receiving the audio signals, the superaudio signals and the audio signals are mixed and output to the post-stage power amplifier module, and the post-stage power amplifier module amplifies the received signals and then sends the signals to the broadcast loudspeaker for playing. The pickup microphone of the wearable intelligent device carries out pickup on environmental audio, and when superaudio signals are detected to exist in the environment, the controller controls the vibration module to vibrate, so that broadcast alarm prompt is carried out on personnel in a tactile mode, dependence on the vision of the personnel is not needed, and the working efficiency is improved. The defect that the mode of receiving the alarm prompt depending on vision is limited by the installation position of the indicator lamp is avoided, and the technical problem that broadcast alarm prompt equipment adopted in an existing broadcast system is not high in reliability is solved.

One embodiment of the present disclosure provides a wireless audio output device for outputting audio content, comprising: an audio output unit; a communication unit for receiving audio broadcast signals; and a processor for generating a broadcast channel list including one or more output candidate channels from among received broadcast channels corresponding to the audio broadcast signals, outputting the broadcast channel list through the audio output unit, selecting one output channel from the broadcast channel list on the basis of a user input, and outputting audio content corresponding to the output channel through the audio output unit.

The utility model provides a kind of sound mixing device of bluetooth FM radio function, including signal input unit, sound mixing processing unit, front-stage amplification unit, filter circuit unit, rear-stage power amplification unit, audio playback unit;At least one signal input unit input digital audio signal is mixed sound after being handled by sound mixing processing unit, amplifies by front-stage amplification unit, then is filtered by filter circuit unit, amplifies by rear-stage power amplification unit after entering audio playback unit and plays;The input unit includes bluetooth receiving module, digital FM radio unit and at least one microphone.The utility model uses digitization, high intelligentization, integrated chip, product volume is small, electrical performance is good.

The invention provides a program playing method, system and device of a vehicle-mounted radio and a medium, and belongs to the technical field of radios, and the program playing method comprises the following steps: starting a second tuner to search a radio station in response to a radio station search request of a user side received in the process of playing a first program by a first tuner; and keeping the first tuner to play the first program in the radio station searching process of the second tuner. According to the invention, the listening of the program is not interrupted when the user searches the radio station, and the listening experience of the vehicle-mounted digital radio can be effectively prevented from being reduced due to long-time search waiting of the user.

The utility model relates to wireless early warning broadcast technical field, concretely relates to a wireless early warning broadcast equipment with protection structure, its core includes connecting screw cylinder and inside fixed insulating metal clamping piece, is used for clamping wire conductor to guarantee conduction, two groups of protection screw cylinders are installed through the thread outside connecting screw cylinder, and the sealing washer of screwing place is pressed to form axial seal, the front end of protection screw cylinder is fixed and sets up the insertion cylinder, and the adjacent position coaxially fixed outer screw clamping cylinder, its outside assembly locking screw cylinder, wire outer sheath inserts insertion cylinder and extends to the annular gap of insertion cylinder and outer screw clamping cylinder, and the locking screw cylinder is driven outer screw clamping cylinder radial elastic contraction clamping sheath, the utility model constructs the anti -tension frame through metal thread engagement, and sealing washer blocks axial invasion, and elastic clamping eliminates radial gap, and the persistent sealing of connecting point is realized, and the anti -tension reinforcement and non -destructive dismounting are strengthened, and the leakage and fracture defects of outdoor wire joint are radically cured.

A radio device is provided, comprising: a receiving unit that receives a radio signal of a radio broadcast; another receiving unit that receives a radio signal of an IP simulcast radio broadcast; a calculating unit that calculates a time difference between a broadcast radio audio based on the radio signal received by the receiving unit and an IP radio audio based on the radio signal received by another receiving unit; a predicting unit that predicts a grace time until switching from the broadcast radio audio to the IP radio audio based on the time difference; another calculating unit that calculates a stretch amount based on the grace time; and a switching unit that stretches the broadcast radio audio using the stretch amount to output an audio signal until the grace time expires, and that switches to an audio output of the IP radio audio when the grace time expires.

The present disclosure relates to a broadcast receiving apparatus. The broadcast receiving apparatus according to an embodiment of the present disclosure includes an impedance matching circuit configured to adjust an input impedance value of the broadcast receiving apparatus; and a controller, wherein, the controller controls the impedance matching circuit so that the input impedance value is adjusted to a certain reference impedance value, when a mode of the broadcast receiving apparatus is a mode of receiving a broadcast signal through a cable, and controls the impedance matching circuit so that the input impedance value is adjusted to be less than the certain reference impedance value, when the mode of the broadcast receiving apparatus is not the mode of receiving the broadcast signal through the cable. Accordingly, it is possible to appropriately amplify a broadcast signal while satisfying a reference related to return loss, thereby reducing network management cost of a network operator and providing a broadcast image of better quality to a user. In addition, various embodiments are possible.

A development environment device comprises a software-defined radio that processes data from a target device and a device control unit that controls the operation of the target device based on an output from the software-defined radio. The software-defined radio is configured to decode data corresponding to an output signal from the tuner, transmitted by the device environment over the communication network, and to output the decoded data to the device control unit. The device control unit is configured to determine, based on the data transmission rate in the communication network, whether the output of data corresponding to an output signal from at least one of the multiple tuners should be stopped, and if it is determined that the output of data corresponding to an output signal from at least one of the multiple tuners should be stopped, to send a stop command to the device environment.

A radio reception system for a motor vehicle is described, comprising a main unit, at least one radio signal receiving unit, and at least one antenna, wherein the at least one antenna is arranged on the inside of a motor vehicle behind a high-frequency transparent component, wherein the at least one radio signal receiving unit is arranged separately from the main unit and spatially closer to the at least one antenna than to the main unit, and wherein the radio signal receiving unit is connected to the main unit by means of a signal-conducting cable.

The invention relates to an antenna system of a vehicle for receiving broadcast signals and a method of operating the same. An antenna system of a vehicle includes: a first low noise amplifier (LNA) for adjusting a strength of a radio frequency (RF) signal received by an antenna element; a mixer for converting the adjusted RF signal received through the connection cable into an intermediate frequency (IF) signal; the second low noise amplifier is used for adjusting the intensity of the IF signal; a noise level detector for measuring a level of noise introduced into the connection cable; and a second automatic gain controller (AGC) for controlling the gain of the second LNA based on the intensity of the IF signal and the noise level.

The present disclosure relates to a method for providing a broadcast audio stream using a hearing device configured to be worn at a user's ear and an auxiliary device. The method includes scanning advertisements and associated audio stream protocols of available broadcast audio streams by the hearing device, thereby obtaining broadcast information including data about the available broadcast audio streams; sending the broadcast information to the auxiliary device by the hearing device; presenting a list of available broadcast audio streams to the user by the auxiliary device, and waiting for the user to select a broadcast audio stream; sending user selection information including data about the broadcast audio stream selected by the user from the auxiliary device to the hearing device; and providing the broadcast audio stream selected by the user by the hearing device. A hearing device configured to be worn at a user's ear, and an auxiliary device are also disclosed. The hearing device includes a wireless communication unit configured to scan advertisements and associated audio stream protocols of available broadcast audio streams, thereby obtaining broadcast information including data about the available broadcast audio streams. The hearing device is configured to send the broadcast information to the auxiliary device, receive the user selection information including data about the broadcast audio stream selected by the user from the auxiliary device, and provide the playback audio stream selected by the user to the user.

The utility model relates to a vehicle-mounted broadcasting terminal, a vehicle-mounted broadcasting system and a vehicle. Comprising a broadcast processing module and a microcontroller, the broadcast processing module is in communication connection with a vehicle-mounted antenna, and the microcontroller is connected with a multimedia host of a vehicle through a physical wire harness; the broadcast processing module comprises a baseband processor and a plurality of tuner interfaces; the broadcast processing module further comprises at least one tuner chip, and the at least one tuner chip is connected to one tuner interface. The microcontroller is used for triggering one of the at least one tuner chip to acquire a broadcast signal acquired by the vehicle-mounted antenna under the condition of receiving a control signal of the multimedia host, so that the tuner chip acquiring the broadcast signal performs tuning processing on the acquired broadcast signal to obtain an intermediate signal; the baseband processor is used for obtaining a broadcast audio according to the intermediate signal so as to send the broadcast audio to the microcontroller; and the microcontroller transmits the broadcast audio to the multimedia host.

To provide a signal processing device capable of properly removing noises having temporal periodicity from received signals.SOLUTION: The signal processing device includes a noise estimation unit. The noise estimation unit receives input signals that are time domain signals including broadcast signals, which are signals derived from broadcast waves and noise signals that have peaks at regular time intervals. The signal-processing device detects a non-broadcasting period that exists at regular time intervals and does not include broadcasting signals from the received signal, and extracts at least part of the received signal in the non-broadcast period as a first noise pattern signal.SELECTED DRAWING: Figure 1

The utility model discloses an intelligent radio with a clock display screen, and relates to the technical field of radios. The radio comprises a radio body, an LED nixie tube display screen for displaying time is fixed at the side end of the radio body, a nickel-metal hydride battery electrically connected with the LED nixie tube display screen is arranged in the radio body, and a charging port for charging the nickel-metal hydride battery is arranged in the radio body; furthermore, in order to save resources, a containing groove is formed in the top end of the radio body, a photovoltaic panel used for charging the nickel-metal hydride battery is fixed in the containing groove, the photovoltaic panel is electrically connected with the nickel-metal hydride battery, and a cover plate used for protecting the photovoltaic panel is rotationally arranged in the containing groove; through the design of the positioning assembly and the extrusion assembly, the cover plate can be stably fixed in the containing groove, a user can conveniently open the cover plate by pressing the pressing plate on the handle, and operation is easy and convenient.

An outdoor emergency broadcasting device 300 comprises: one or more speakers 304 to provide an audible emergency message; wireless receiver 302 to receive an emergency alert from an external device; a

A platform including a modification module and an access module may receive live or near real-time event-related data from a data source. The modification module may receive HTTP requests from a browser of a user device for the event-related data and transmit the event-related data in response to a push request or on-demand. The modification module may receive event-related data manipulations from the browser and transmit modifications to the event-related data to the browser resulting from the manipulations. The modification module may further receive publication requests from the browser to publish data. The data may include a graphic designation and an associated set of event-related data. The data may be published to the access module. The access module may map the data to a specific graphic format, and publish the mapped data to one or more downstream clients.

There is provided a radio device including: a reception unit that receives a radio signal of radio broadcasting; another reception unit that receives a radio signal of IP simulcast radio broadcasting; a calculation unit that calculates a time difference between a broadcast radio audio based on the radio signal received by the reception unit and an IP radio audio based on the radio signal received by another reception unit; a prediction unit that predicts a grace time until switching from the broadcast radio audio to the IP radio audio based on the time difference; another calculation unit that calculates a stretch rate based on the grace time; and a switching unit that stretches the broadcast radio audio using the stretch rate to output an audio until the grace time elapses, and switches to an audio output of the IP radio audio when the grace time elapses.

The utility model relates to the technical field of emergency radios, and discloses an emergency radio with a lighting structure, which comprises a radio main body, a solar panel is arranged in the radio main body, the back of the radio main body is rotatably connected with a hand-cranking power generation handle, and an interface is arranged in the radio main body. A storage assembly is arranged in the radio main body, an illumination assembly is arranged on the upper surface of the radio main body, the storage assembly comprises a collection box, the side wall of the collection box is slidably connected to the interior of the radio main body, a fixing hook is fixedly connected to the lower surface of the collection box, and a mounting block is fixedly connected to the interior of the radio main body. According to the utility model, the collection box is arranged in the radio main body, so that emergency articles or tools can be conveniently stored in the radio main body, the collection box is extruded, the push rod extrudes the sliding block to rotate the rotating strip, so that the clamping hook is separated from the fixed hook, the collection box is conveniently removed to take the articles, and the practicability of the equipment is improved through the structure.

The invention relates to the technical field of vehicle-mounted electronic equipment, in particular to a DAB digital radio and host synchronous starting method, device and equipment, a storage medium and a computer program product. According to the method, when a whole vehicle is powered on, power is supplied to a DAB digital radio and a host at the same time, and the DAB digital radio is set to be in a standby state; when a vehicle ACC power-on signal is received, a CAN signal is provided for the host to trigger the host to start; when the host is started, a Vbus electric signal is sent out, and the Vbus electric signal is transmitted to the DAB digital radio through a preset data connecting line; and the DAB digital radio is controlled to be synchronously started after receiving the Vbus electric signal, so that the stability of the broadcasting function of the DAB digital radio is improved.

The utility model discloses an emergency broadcast signal receiving device comprising a signal receiving unit, the bottom of the signal receiving unit is connected with a first rotation adjusting unit, the bottom of the first rotation adjusting unit is connected with a second rotation unit, and the bottom of the second rotation unit is connected with a cylinder telescoping unit. The bottom of the air cylinder telescopic unit is connected with a clamping unit. The emergency broadcast signal receiving device provided by the utility model solves the problem that a traditional signal receiver in the prior art cannot be flexibly adjusted.

The disclosure relates to a method for Wiener-filter-based signal restoration, comprising the following method steps: receiving a signal (g); estimating a signal-to-noise ratio for a Wiener-filter-based restoration algorithm (v) by a processing algorithm (φ) obtained by means of a machine learning processing, depending on a spectral power density calculated for the received signal; and generating a restored signal (ŝ) from the received signal (g) and from the signal-to-noise ratio estimated for the Wiener-filter-based restoration algorithm (v) by means of the Wiener-filter-based restoration algorithm (v) in order to improve the filter-based signal restoration, in particular the result of a Wiener-filter-based signal restoration.

The invention provides a radio station threshold value debugging method of a portable radio, electronic equipment and a storage medium, and relates to the technical field of radio station threshold value debugging, and the method specifically comprises the steps: obtaining initial signal feature data, carrying out the average processing of the obtained initial signal feature data, carrying out the frequency disturbance based on the initial signal feature data obtained in S100, and obtaining a radio station threshold value debugging result; s200, performing change rate calculation on the basis of the response change data obtained in the S200, performing analysis on the basis of a change rate calculation result, obtaining initial signal characteristic data in a receiving range of the portable radio, and applying tiny frequency disturbance to the signal, so as to obtain the characteristic data of the portable radio. According to the method, deep analysis of signal response change characteristics is realized, the sensitivity of the signal to frequency disturbance can be identified by acquiring response data of the signal under different disturbance frequencies and calculating the change rate, and the method has a dimensionality of judging the authenticity of the signal, so that the accuracy of signal identification is effectively improved.

The invention discloses a three-tuner multi-mode cooperative control method, a radio system and an automobile, the method is applied to a multi-system radio system, the multi-system radio system comprises a first tuner, a second tuner and a third tuner, the first tuner is a special DAB tuner, the second tuner is an FM / AM tuner, and the third tuner is an FM / AM tuner. The third tuner is a multi-standard scanning tuner; the method comprises the following steps: dynamically allocating working modes of a first tuner, a second tuner and a third tuner based on a playing system scene; and controlling the first tuner, the second tuner and the third tuner to work cooperatively based on a time slice rotation strategy. Playing and searching of DAB and FM / AM can be achieved through the three tuners, and the area of a radio chip and the hardware cost are reduced. Moreover, the first tuner, the second tuner and the third tuner are controlled to work cooperatively based on a round-robin strategy, so that time division multiplexing of the three is realized, and the idle period is shortened.