401 results about "Wireless broadcasting" patented technology

The present invention pertains to a wireless audio-video doorbell monitoring system, wherein a portable monitoring device administrates a doorbell device and detective devices. After initiation, the monitoring device calls other nearby devices to form a wireless network via a wireless broadcasting way, and then the monitoring device administrates each device to perform the doorbell or detection function. Via the automatic setup and simple operating interface, the present invention enables a general family to be free from a complex operational procedure. In the present invention, the detective device can sense the image and sound of the monitored regions, which is sent to a display panel and a speaker of the monitoring device without a time lag. Accordingly, the present invention provides an instantaneously-displaying and easy-operated wireless audio-video doorbell monitoring system, which is easy installed, automatically set up, highly securing, able to reduce the power consumption efficiently and suitable for a general family usage.

In one embodiment, the invention provides a portable wireless personal communication system for cooperating with a remote certification authority to employ time variable secure key information pursuant to a predetermined encryption algorithm to facilitate convenient, secure encrypted communication. The disclosed system includes a wireless handset, such as PDA, smartphone, cellular telephone or the like, characterized by a relatively robust data processing capability and a body mounted key generating component which is adapted to be mounted on an individual's body, in a permanent or semi-permanent manner, for wirelessly broadcasting, within the immediate proximity of the individual, a secret or private key identifying signal corresponding to a time variable secure key information under the control of the certification authority. The key identifying signal is generated in a format that facilitates secure wireless communication with the individual in accordance with a predetermined encryption algorithm including a PKI encryption algorithm. The disclosed system may be used with a console for coordinating access to a variety of different communication system and networks.

The interior cabin of a vehicle is provided with a vehicular sound-processing system that comprises an interior rearview mirror assembly, the mirror assembly including a mirror housing and a reflective element. An accessory is located in the interior cabin. The interior rearview mirror assembly comprises a user-interaction site for a wireless communication system, the wireless communication system communicating with the accessory. The user-interaction site comprises at least one microphone for producing an audio output in response to detection of vocal input of a human speaker in the interior cabin with the vehicle cabin noise superimposed thereon. Preferably, the user-interaction site further comprises at least one manually operated control input. The restricted-range wireless communication system preferably comprises one of a radio frequency restricted-range wireless communication system and an infrared restricted-range wireless communication system. Signals indicative of the vocal input detected at the user-interaction site of the interior mirror assembly are wirelessly broadcast to the accessory located in the interior cabin of the vehicle.

A high frequency signal transmission apparatus includes a transmitter for transmitting received signals from a signal source as a modulated signal on a high frequency 900 MHz carrier to a remote receiver. The remote receiver converts the high frequency carrier in at least one conversion step to a lower frequency carrier signal. The lower frequency carrier signal carrying the modulated signal is then converted to another carrier signal and retransmitted as a modulated second signal to another remote receiver capable of demodulating the signal and broadcasting the audio sounds or video images. The oscillators in the transmitter and receiver are selectable to operate at discrete frequencies. Automatic fine tuning control is provided in the receiver to accommodate drift of the oscillator in the receiver. A recorder is coupled to the receiver for temporarily storing a demodulated first signal from the transmitter and then outputting the stored signals to a second transmitter for retransmission to a remote output device.

A method, system, and program for controlling access to wirelessly broadcast electronic works during playback are provided. A wireless broadcast of an electronic work with digital rights rules is received from a primary player at a secondary player. Synchronous play of the electronic work at the secondary player may be enabled while the secondary player is within reception range of the primary player. A sample of the streamed electronic work with digital rights rules is stored at the secondary player. Responsive to detecting that the secondary player has moved outside reception range of the primary player, the secondary player only allows playback of the stored electronic work according to the digital rights rules.

A method and apparatus is provided for wireless audio management in a communication system (100). A wireless audio manager (110) includes one or more headphone receptacles (160) for coupling a conventional headset (120) thereto, a wireless receiver (204) for receiving streaming audio information from one or more information devices (130, 140, 150) wirelessly broadcasting streaming audio information, a user interface (170) for receiving user inputs, and a controller (208) coupled to the headphone receptacle(s) (160), the wireless receiver (204) and the user interface (170) for coupling the streaming audio information to the conventional headset (120) by providing the streaming audio information to the headphone receptacle(s) (160) in response to the user inputs.

The present invention relates to a wired / wireless broadcasting distribution apparatus having a home broadcasting distribution function and a broadcasting channel formation / termination method using the same. A wired / wireless broadcasting distribution apparatus according the present invention receives HD-grade multi-channel ground wave / satellite / cable broadcasting signals, and converts the received broadcasting signals into an IEEE1394 Isochronous packet or converts the IEEE1394 Isochronous packet into a UWB wireless signal, and transmits the IEEE1394 Isochronous packet or the UWB wireless signal to a home client, thereby making it possible to distribute HD-grade multi-channel wired / wireless broadcasting signals requiring a transmission bandwidth of hundreds Mbps to home clients irrespective of place.

An image transfer system includes a printer connected to a network and an information terminal device, which transfers photographed image data to the printer, the information terminal device having a wireless broadcasting device, which broadcasts to the printer, and the printer having a wireless response device, which responds at least own IP address responsive to the wireless broadcasting, the information terminal device further including an IP address obtaining device, a display device, and a wireless sending device, and the printer further including a connection start request wireless sending device and a wireless connection establishing device.

The invention discloses a mobile internet access system based on wireless signal identification and an implementation method. The mobile internet access system comprises an access controller with the wireless signal identification, an access unit, a wireless identity identification device and a mobile terminal, wherein the access unit sends a wireless broadcast message containing own identification information periodically; the mobile terminal detects the wireless broadcast message of the access unit and then initiates a door-opening request after the wireless broadcast message is detected; and the access system receives the door-opening request of the mobile terminal, carries out right judgment and executes corresponding access operation according to the judgment result. The mobile internet access system based on wireless signal identification and the implementation method disclosed by the invention have the advantages that a user can use the access system only by carrying the mobile terminal without needing to swipe cards or adopting other means such as biological identity identification, the user also does not need to carry out physical contacting interactive operation with the access system, so that the use of the user is more convenient; and compared with the card identification system, a large amount of cost for cards is saved.

A method and apparatus for transmitting a plurality of data streams in a wireless broadcast system are provided. The method includes mapping the plurality of data streams onto a super-frame that includes a plurality of frames; inserting signalling information in a first signalling information field for assisting in the reception of a first number of said plurality of data streams for a given frame, the first number being less than or equal to a limit applicable to each of the plurality of frames; dependent on a number of data streams for the given frame being greater than the limit, inserting signalling information in a second signalling information field; inserting said first and second signalling information fields in a preamble section of said given frame; and transmitting the plurality of frames.

The present invention discloses a multi-carrier digital multimedia broadcast system and the digital information transmission method thereof. After RS encoding and byte interleaving, LDPC encoding, bit interleaving and constellation mapping to an upper layer of data streams in turn, the obtained data symbol is multiplexed with scattered pilots and continual pilots which include the system information to form an OFDM frequency domain symbol and scrambled; an OFDM time domain symbol is generated by IFFT transforming, and after inserted with the frame head to build a time slot, it is connected to form a signal frame of the physical layer; the signal frame of the physical layer is transmitted after being low-pass filtered and orthogonal upconverted. The system and method thereof provide wireless broadcast with high quality such as audio, video and multimedia data and the like for mobile, fixed and portable receivers, and can use the satellite transmission and terrestrial transmission method for transmitting. The method utilizes the LDPC OFDM scheme, and the system applies the microwave and large scale integrated circuit technologies while fulfills the needs for low cast and high performance.

Methods and systems are provided for concealing identifying data that may be used to identify a beacon or device in broadcasts unless an observer device is able to directly or indirectly, via an authorized resolver device, translate an encrypted broadcast into the identifiable information. The wireless security scheme disclosed herein also pertains to resolving the concealed data messages to obtain the identifiable information.

An aerosol delivery device comprising a control component and a communication interface is provided. The control component controls operation of at least one functional element of the aerosol delivery device in instances in which a flow of air through at least a portion of the at least one housing is detected. The communication interface is coupled to the control component and enables wireless communication. The control component further detects a predefined trigger, and automatically in response thereto, causes the communication interface to broadcast availability of the aerosol delivery device for connection with a capable wireless device. The predefined trigger includes at least one instance in which the flow of air is detected, and excludes user-actuation of any button on the aerosol delivery device.

A wireless control system and a method for controlling devices (e.g., luminaires, dimmers, effects devices, stepper motors, and the like) used in entertainment lighting applications is disclosed. Embodiments disclose a modular transceiver utilizing a wireless broadcasting transmission technique and a wireless control system where an interface between a controller and controlled devices is facilitated using the transceivers.

A data communication system and method that wirelessly broadcasts the full content of digital network source information to a user is accomplished by software tools that content source, schedule, and transmit and receive computer-type digital information over a broadband broadcast medium. The data communication system is independent of any broadcast hardware, and can be used to schedule the broadcast of many different services, such as standard files, web sites, program guide and rotating files, by IP-Multicast, RS422, RS232, and TCP / IP communications capable of broadcasting via conduits that comprise television VBI, radio subcarrier, satellite (DSS,DVB), MPEG-2, paging networks, telephone networks, local area networks, and the Internet at the same time. The file contents are sent in pieces (or packets) to a broadcaster hardware in a data stream, that are formatted for being reconstructed into files by the client receiver.

The method comprises: after sequentially making RS coding and byte interlace, LDPC coding, bit interlace and constellation mapping for the upper layer data, the acquired data symbol, discrete pilot frequency and the continuous polite frequency are multiply connected to form OFDM polite frequency and make scrambling; generating OFDM symbol through IFFT transformation, and after forming time slot through inserting frame head, they are connected to form signal frame of physical layer; after making low pass filter and quadrature up-conversion for the physical layer signal frame, they are sent out. The invention can provide radio broadcast such as audio, video and multicast for mobile, fixed and portable receiver. The system thereof uses micro wave and large-scale IC technology. The method adopts OFDM of LDPC solution.

A method and apparatus for proximity service discovery are disclosed. In one embodiment, the method comprises providing one or more expressions from a market server to at least one wireless broadcasting device for broadcasting over one or more wireless channels, each of the one or more expressions related to different marketplace items, receiving, at the market server, one or more requests from one or more wireless devices for information to identify items being offered in marketplace that match items the one or more wireless devices are attempting to obtain, sending expressions to at least one or more wireless devices associated for matching the relevant broadcast signals associated with items the one or more wireless devices are attempting to obtain, and providing, by the marketing server, data notification channels for direct device-to-device data notification over at least one wireless channel to facilitate information exchange between the at least one wireless broadcasting device and the one or more wireless devices attempting to obtain items being offered by the at least one wireless broadcasting device.

An attention marker can be transmitted to a radio receiver using an out-of-band transmission. One or more watermarks can be inserted in an over-the-air broadcast. A radio can include a tuner for receiving the over-the-air broadcast; an out-of-band receiver to receive substitute media content and the attention marker; memory to store the substitute media content; a user interface to play out media content to a user; and processing circuitry implementing multiple modules such as a marker detection module, a watermark detection module, and a local playout control module. The marker detection module can detect the out-of-band attention marker, and in response to detection of the attention marker trigger or schedule activation / deactivation of the watermark detection module. If the watermark detection module detects a watermark, the substitute content stored in the memory can be played out in place of the broadcast content.

The invention relates to a wireless reliable broadcasting method based on a random linear network code. The wireless reliable broadcasting method comprises two stages: broadcasting an original data packet and retransmitting a coding packet, namely, performing a linear network code on a lost data packet, and retransmitting the coding packet; and respectively solving each lost original data packet by utilizing a Gaussian elimination method after each receiving node receives the coding packets with the preset amount. The method in the invention can be used for overcoming the defect that a traditional retransmission method is not suitable for point-to-multipoint broadcasting scene and also prevents limitation that performance is not stable and system expense is large in the retransmission method based on XOR (exclusive OR) coding, according to the wireless reliable broadcasting method based on the random linear network code, disclosed by the invention, linear network code and retransmission is carried out on the lost original data packet of each receiving node through lower coding algorithm complexity and system expense; and the receiving node can be used for solving the original data packet from the coding packet by utilizing a solution of a linear equation system, and the retransmission performance of wireless broadcast is modified, and the average retransmission times is reduced. The wireless reliable broadcasting method disclosed by the invention is stable, is not influenced by data package loss distribution and has good promotion application prospect.

The invention discloses an intelligent domestic electric appliance control method and system and an intelligent set top box. The system comprises the intelligent set top box and at least one intelligent domestic electric appliance in wireless connection with the intelligent set top box. The intelligent set top box is used for carrying identification codes of identifications which a control instruction refers to, the identification code of the intelligent set top box and control item information which the control instruction refers to into control information to broadcast all the information in a wireless mode. The intelligent domestic electric appliance is used for carrying out corresponding operation according to the control item information when it is judged that the identification code of the intelligent domestic electric appliance is carried in the received control item information. The identification code of the intelligent domestic electric appliance, the identification code of the intelligent set top box and operation results are carried in feedback information to be broadcasted in a wireless mode. The intelligent set top box is further used for carrying out follow-up operation according to the received feedback information. According to the technical scheme, because the intelligent set top box is in wireless communication with the intelligent domestic electric appliance, a user can control the intelligent domestic electric appliance without a gateway, and purchasing cost is reduced.

The invention relates to a train collision prevention warning system. A train information collection module is used for collecting train status information, and the train status information comprises a train running line, a train location, a train speed, a safety level and the like; a wireless communication module is used for wirelessly broadcasting the train status information and wirelessly receiving the train status information broadcast by other trains; and a CPU (central processing unit) control processing module is used for receiving and processing the train status information of the train and other trains collected by the train information collection module and transmitted by the wireless communication module. The current train status information of the train can be broadcast wirelessly to other trains via the wireless communication module, the train status information wirelessly broadcast by other trains can be received by the wireless communication module, the running safety distance and speed can be judged by the CPU control processing module according to relationships between the train and other trains, and pre-warning signals can be sent to drivers and automatic train operation systems. The system has a simple and reliable structure and can be installed conveniently, the train drivers can promptly know running statuses of approaching trains, and the train running safety can be improved effectively.

The invention provides a fountain code decoding method suitable for a radio broadcasting system. The decoding method includes: step one, calcifying signals after passing a channel decoder into a group with residual errors and a group without residual errors at the receiving end; step two, for the group without the residual errors, setting a log likelihood ratio (LLR) value with a corresponding bit of zero as a large positive number (such as the positive infinity) and an LLR value with a corresponding bit of one as a small negative number (such as the negative infinity), and collecting LLR values of the group with the residual errors to participate in the decoding process of the function code; and step three, trying to decode all source symbol sets through hard iteration of a coded symbol with certain messages and updating a bipartite graph of the fountain code in a bit domain and an LLR domain during the iteration. The method has the advantages of high spectrum efficiency due to retention of the group with the residual errors and low decoding complexity.

The invention relates to a radio broadcasting terminal system. The invention provides a self-monitoring type radio broadcasting terminal system, wherein, when sending a test audio, the studio equipment of the system feeds back outdoor audio to the system through an audio collecting device, the system judges the feedback information, thereby the studio equipment is self-monitored partly; when the self-monitoring is started, the system cuts off urban power, which is supplied by the storge battery of the UPS power supply, the self-monitoring of the UPS power supply is started. The self-monitoring type radio broadcasting terminal system of the invention can solve the problems of bad tone quality, easy to be interfered, complex maintenance management, bad interaction performance, unable self-monitoring, improves the performance of the system and reduces hidden danger.

Geographically-relevant information is provided to mobile users by having an information source provide location-referenced information to one or more backend server systems. In response, the backend server system determines a region for which the received location-referenced information is relevant, and then identifies one or more specific cellular base stations that provide wireless broadcast service over an actual broadcast region which covers at least a majority of the determined region. A condition message may then be provided to each of the identified cellular base stations, which are correspondingly instructed to wirelessly broadcast the message over the actual broadcast region.

A method is provided for transmitting in-band signaling information in a wireless broadcasting system that transmits broadcast service data through a plurality of data Physical Layer Pipes (PLPs) constituting a frame. Non-PLP signaling information is included in a data PLP for a particular broadcast service and the data PLP is transmitted through a current frame, when no data PLP for the particular broadcast service is transmitted in at least one frame to be transmitted within a maximum schedulable period NMAX from a time the current frame is transmitted. The non-PLP signaling information indicates that no data PLP for the particular broadcast service is transmitted within the maximum schedulable period.

The invention discloses an induction type give-way control system for primary and secondary road junctions under poor sight distance conditions. The induction type give-way control system comprises magnetic induction detection coils, a data transmission device, a control system center and crystal diode signs. The magnetic induction detection coils are used for detecting the current speeds, vehicle lengths and moments of vehicles at all entrance lanes. The data transmission device is used for transmitting data to the control system center in a wireless broadcasting mode and sending instructions generated by the control system center to the crystal diode signs. The control system center is used for calculating the time when the vehicles at the primary and secondary road junctions reach the points where conflicts may happen and generating corresponding instructions. The crystal diode signs are used for prompting the vehicles going to enter the road junctions along secondary roads to give way or pass through according to the instructions sent by the control system center. The invention further provides an induction type give-way control method for primary and secondary road junctions under poor sight distance conditions. Induction type give-way signs are arranged at the primary and secondary road junctions, driving behaviors of drivers of vehicles on the secondary roads are helped and induced, traffic conflicts of the vehicles on the primary and secondary road junctions are reduced, and driving safety at no-signaled road junctions is improved.

The invention discloses an intelligent electric meter and out-of-meter circuit breaker automatic association pairing method. The intelligent electric meter and out-of-meter circuit breaker automatic association pairing method comprises the following steps that an intelligent electric meter and an out-of-meter circuit breaker are initialized respectively, the intelligent electric meter is started to automatically scan peripheral Bluetooth devices through a Bluetooth module to obtain a device list, and meanwhile the out-of-meter circuit breaker enters into a wireless broadcast mode so that the out-of-meter circuit breaker is discovered by the intelligent electric meter; S2, the intelligent electric meter and the out-of-meter circuit breaker are linked to confirm a starting detection state; and S3, the intelligent electric meter and the out-of-meter circuit breaker are linked to confirm a closing detection state. By using the intelligent electric meter and out-of-meter circuit breaker automatic association pairing method of the invention, in a pairing process, two parties carry out identity authentication through a Bluetooth protocol or an implicit custom protocol, and simultaneously,a related encryption function is added into the protocol so that the protocol has relatively high security.

The invention discloses an image noise reduction method, overcoming the problem of fixed bias between a wavelet coefficient obtained by an image noise reduction method in the existing image processing technology and a wavelet coefficient of an original image. The image noise reduction method comprises the following steps of carrying out multilevel wavelet decomposition on to-be-processed noise images, thereby acquiring the corresponding multilevel wavelet coefficients; according to the wavelet coefficients at all levels and the corresponding level numbers of the wavelet coefficients, determining the corresponding noise thresholds of the wavelet coefficients at all levels; carrying out noise reduction on the multilevel wavelet coefficients by adopting a corresponding wavelet threshold noise reduction function of multiple noise thresholds based on the multilevel wavelet coefficients; and reconstructing the original images corresponding to the noise images by adopting the noise-reduced multilevel wavelet coefficients. The constant error among the wavelet coefficients obtained by the image noise reduction method and the wavelet coefficients of the original images is relatively small so that pseudo-Gibbs artifacts can be avoided, detailed information of the images are well retained, and the calculated quantity is relatively low. Thus, the image noise reduction method can be widely applied to the wireless broadcasting field.