摘要:
A device and method of controlling content transmission, and a device and method of providing content. The method of controlling content over a network includes generating a control command using a stateless protocol so that an AV content providing device controls transmission of an AV content using a connectionless protocol and transmitting the generated control command to the AV content providing device. Accordingly, when AV content is transmitted through RTP over a network, the content is controlled by a stateless protocol such as HTTP instead of a state protocol such as RTSP. Thus, RTP is easily supported by an effective content control method.
摘要:
A method of transmitting data more effectively, and more particularly, a method of transmitting data to a group comprising a plurality of reception stations that receive the same data from a transmission station when the stations communicate the data in a power line communication (PLC) network, and an apparatus to do the same. According to the method, a transmission station transmits data to a group including a plurality of reception stations that receive the same data at a time, to prevent a channel bandwidth from being wasted, and to prevent a station that does not desire to receive the data from receiving the data.
摘要:
A method and apparatus for packet aggregation in a power line communication network (PLC) are provided. The method of aggregating packets includes: by performing a PLC channel estimation, determining whether or not a channel condition is good; if the channel condition is good, determining whether or not the data desired to be transmitted is suitable for packet aggregation according to the type of data; and if the channel condition is good and the data desired to be transmitted is suitable for the packet aggregation, aggregating packets of the data desired to be transmitted. Since a decision on whether or not to aggregate packets is determined according to a channel condition at a physical level and the type of data at an application level, packet aggregation can be performed in appropriate response to the frequently changing condition of a channel and the characteristic of the data desired to be transmitted.
摘要:
A live content switching method, a source device, and a sink device are provided. The method includes switching from first content to second content by using a dummy connection, the second content using the same resource of the source device as the first content. Accordingly, by using dummy connections set between a source device and a sink device, it is possible to switch the sink device from one live content to another live content without the need to cut off existing connections set between the source device and the sink device.
摘要:
A method and apparatus for transmitting and receiving data generated on an application according to the High Definition Media Interface Consumer Electronics Control (HDMI CEC) standard are provided. The method and apparatus enable transmission and reception of audio, video and control signals through CEC of an integrated HDMI cable, without using a complicated TCP/IP structure. As a result, wiring is simple and Audio/Video (AV) devices are used dynamically.
摘要:
A packet generating method in a wireless High Definition Multimedia Interface (HDMI) environment includes generating a packet which includes either AV data or control data in a payload and a field indicative of a packet type in a header according to a HDMI environment; and transmitting the generated packet. Accordingly, the AV data and the control data can be transceived over the single channel in the HDMI.
摘要:
A method for providing service information and a video apparatus employing the same are provided. The method for providing service information includes transmitting a request message for service information provided by an external apparatus connected according to the High Definition Multimedia Interface Consumer Electronics Control (HDMI CEC) standard, and receiving a reply message for the service information from the external apparatus as a reply to the request message. Accordingly, the video apparatus provides service information provided by the external apparatus connected thereto to a user.
摘要:
Provided are a channel time allocation method and apparatus adopting the same. The channel time allocation method includes: (a) receiving a request of registering in a network from a device; (b) determining whether the network supplying a service required by the device exists; and (c) if the network supplying the requested service exists, performing a procedure of registering in the network, and if the network supplying the requested service does not exist, generating a new network. Since existing MAC protocols can be used in the channel time allocation method, an optimum service is provided in a network environment in which different kinds of services coexist.
摘要:
A method of negotiating channel sharing between adjacent cells when there are a plurality of cells in a power line communication (PLC) network. The method includes attempting to negotiate the channel sharing during a minimum contention access period (CAP) which starts after a maximum beacon period ends and ends before a CAP of each PLC cell ends, wherein the maximum beacon period indicates a maximum size that a beacon frame in a super-frame transmitted from a coordinator of each PLC cell can have. When an attempt to negotiate the channel sharing is made using this method, interference does not occur during channel sharing negotiation, and effective channel sharing can be achieved, thereby eliminating interference between adjacent cells.
摘要:
A method of providing media contents in a wired/wireless network environment and an apparatus using the same. The method includes: calculating the length of multimedia contents; calculating a length of information included in the multimedia contents; and calculating the length of the media contents included in the multimedia contents from the length of the multimedia contents and the length of the information. In a real time transcoding incapable of calculating a far end of media contents, a length of the media contents can be provided to a digital media client.