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298 results about "Radio broadcasting" patented technology

Radio broadcasting is transmission by radio waves intended to reach a wide audience. Stations can be linked in radio networks to broadcast a common radio format, either in broadcast syndication or simulcast or both. The signal types can be either analog audio or digital audio.

Identifying works for initiating a work-based action, such as an action on the internet

A system is described for linking traditional media works, such as print and broadcast media for example, to a more interactive media conduit, such as the Internet. The system avoids the need to modify the media work in anyway. Instead, it employs a passive recognition system that uniquely identifies the specific work, such as a particular television or radio broadcast or printed commercial. The identification may be based in intra-work and / or extra-work information. Several different embodiments / environments are described. The best embodiment may depend, at least in part, on costs of hardware and communication. These costs can change over time. In one embodiment, all of the databases and computation are performed at the user's premises. In another embodiment, all of the databases and computation occur at remote sites that user premise equipment can query using uniquely identifying extra-work information, such as the time, place and station on which the work was broadcast. This second embodiment is most suitable for content that is published, e.g. magazines, newspapers, etc., or broadcasted, e.g. cable, satellite and terrestrial television and radio. Alternative embodiments, in which various operations are performed at both the user's premises and remote locations are also possible.
Owner:NETWORK 1 TECH

Sampling playback doorbell system

A digital sampling playback doorbell system has two or more doorbell buttons and a central unit with solid state memory storage for multiple digitally sampled sound files. User assignment means are provided for assigning a particular sound file to a particular doorbell button. The digital sampling playback doorbell has computer interface of RS-232, or USB, or infrared wireless connection type and relies on computer installed software to download digitally sampled sound files stored in the computer hard drive to the memory of the digital sampling playback doorbell system central unit. The digitally sampled sound files stored in the computer hard drive are obtained by accessing a web site through the Internet or capturing sound through an audio computer connection to a microphone, CD player, radio broadcast or mass music storage device using software resident in the computer. Alternatively, an IPOD can be used as a source for sounds that can be transferred or sent to play on the doorbell. Such sound transfer can take place via a blue tooth communication link, or by a docking station that resides on the doorbell. Taking advantage of the intelligence contained within the IPOD, one can then select sounds or files that have been previously converted by either the IPOD or the computer that the IPOD was previously attached to, and send them to the doorbell.
Owner:PREDOMINANCE

Advertisement inter-cut method for video live broadcasting and advertisement inter-cut device for video live broadcasting

InactiveCN105791889ADoes not cause moviegoing experienceSimple processSelective content distributionRadio broadcastingMultimedia
The invention belongs to the technical field of network video live broadcasting, and discloses an advertisement inter-cut method for video live broadcasting. The method comprises the steps that whether an advertisement inter-cut instruction is received is judged in the video live broadcasting process; if the advertisement inter-cut instruction is received, a video live broadcasting frame is continuously maintained; and an advertisement requiring inter-cutting is superposed in the video live broadcasting frame, wherein the advertisement requiring inter-cutting is pictures or videos which are manufactured in advance. With application of the advertisement inter-cut method for video live broadcasting, inter-cutting of the manufactured advertisement of the picture or video format can be performed in the video live broadcasting process under the condition of maintaining the original video live broadcasting frame so as to be easy and feasible with no requirement for more operation of an anchor, and the inter-cut advertisement is perfectly fused with the original video live broadcasting frame without influencing the watching experience of users watching live broadcasting; besides, the flow is simple and easy to be combined with the original video live broadcasting process so that development cost can be reduced. The invention also provides a corresponding advertisement inter-cut device for video live broadcasting.
Owner:WUHAN DOUYU NETWORK TECH CO LTD

Network television direct broadcasting system

The invention provides a network television direct broadcasting system. The system comprises a streaming media signal acquisition server, a streaming media signal receiving server and a streaming media content transmitting server, wherein the streaming media signal acquisition server is used for acquiring the original streaming media signal from a program signal source in real time and generating a streaming media direct broadcasting file by coding; the streaming media signal receiving server is used for acquiring the streaming media direct broadcasting file from the program signal source in real time and buffering streaming segments; the buffering of the streaming segments is to establish an index for each key frame of the streaming media direct broadcasting file; and the streaming media content transmitting server is used for acquiring the streaming media direct broadcasting file from the streaming media signal receiving server and transmitting the streaming media direct broadcasting file to a network player for playing in real time. The system has the functions of direct broadcasting, playback, multi-screen signal acquisition, code optimization, multi-rate coding, automatic cutting, multi-packet transmission and the like.
Owner:CHINA DIGITAL VIDEO BEIJING

Method and device for reducing live broadcasting time delay and standstill as well as live broadcasting system

InactiveCN106713947AAdd frame drop mechanismIncrease real-time interactivityDigital video signal modificationSelective content distributionRadio broadcastingTime delays
The invention discloses a method for reducing live broadcasting time delay and standstill. An anchor end and a client are provided; and the method comprises the steps of actively discarding partial or all data packets to enable the data packets not to enter a transmitting queue by the anchor end when the number of data packets of the transmitting queue is abnormal; when the client receives a lacked frame and the imperfect frame is B-lacked frame or a P-lacked frame, completing based on front and back frames; and if the lacked frame is I-lacked frame, copying a former group of the normal picture for playing. An existing rtmp live broadcasting protocol may bring in a time delay when aiming at network jitter, and an anchor-end frame discarding mechanism is added to discard a portion of image data reasonably when the playing at the audience end is not affected by the packaged data, so that a tcp retransmission mechanism is not triggered, the time delay in such type can be reduced efficiently, and real-time interactivity of the anchor and the audiences is added. A player completes the discarded frame, and the completion scheme is tolerance calculation of adjacent images. A person cannot have any feeling of incoherence.
Owner:FLYING FOX INFORMATION TECH TIANJIN CO LTD

Digitalized teaching method and device for intelligent tracking shooting, recording and live broadcasting

InactiveCN102044175AAchieve the effect of intelligent tracking shootingDigital teaching networkClosed circuit television systemsElectrical appliancesRadio broadcastingBehavioral analytics
The invention relates to a digitalized teaching method for intelligent tracking shooting, recording and live broadcasting. The method is characterized by comprising the following steps of: intercepting the operation of a teacher or a student by a teaching strategy processing module for user activity analysis; receiving a scene switching message and analyzing the scene to be switched according to the current shooting environment by a recorded broadcasting processing module to search for a suitable shooting strategy; and locating an object to be shot according to a locator or a preset position and then shooting by the recorded broadcasting processing module if finding a suitable strategy. Compared with the prior art, the recorded broadcasting processing module provided by the invention can locate and shoot objects, such as teaches, students, computer desktops, and the like according to the locator to achieve the intelligent tracking shooting effect. A live broadcasting module receives and live broadcasts streaming media data on the Internet, and users outside the classroom can participate in the teaching activities through the Internet so that the digital teaching can be globally networked.
Owner:赫斯默(上海)电子科技有限公司

Method and system for sharing audio-video of mobile multi-media broadcasting

The invention provides a method and a system for sharing audio-video of mobile multi-media broadcasting. The method comprises the following steps that: sharing settings of an upload terminal are carried out, and the sharing settings include the settings of an address of a video server and the information of sharing user terminals; the upload terminal is a mobile terminal supporting the wireless Internet access and having a mobile multi-media broadcasting function; the upload terminal uploads the audio-video data of the mobile multi-media broadcasting, which need to be shared, to an audio-video server, and simultaneously informs the sharing user terminals of the address of the audio-video server; after acquiring the address of the audio-video server, the sharing user terminals share the sharing audio-video data of the mobile multi-media broadcasting, which are uploaded by the upload terminal, by connecting to the audio-video server. The method provides a function of sharing the multi-media broadcasting with other people, and shares the audio-video by the on-line video server, so that people can watch TV or listen to radio broadcast by the mobile terminals or computers without the mobile multi-media broadcasting function.
Owner:ZTE CORP
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