Lg Electronics Inc.

Kangsuk Huh

Jinpil Kim

Kyungho Kim

Hyeonjae Lee

Joonhui Lee

Hotaek Hong

Dongyoung Lee

Hyeonsoo Lee

The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and transmitting the content converted into the delivery format using an IP packet, wherein the delivery format includes indicator information for expressing whether a program clock reference (PCR) has been transmitted to the IP packet.

Method for transmitting/receiving internet-based content and transmitter/receiver using same

The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising the following steps: converting content stored in a file format into a delivery format; and converting the content transformed into the delivery format using an IP packet, wherein the file format includes an f-type (ftyp) box for storing information on a file type, an mdat box for storing audio or video data, and a moov box for storing information on data stored in the mdat box, and wherein composition information on at least one program that configures the content is included in either the mdat box or the moov box file format.

Disclosed are a method and apparatus for keeping orders among messages when transmitting and receiving messages within a Converged IP Messaging (CPM) session. A message transmission and reception method in a network comprises receiving a message including sequential identification information and a cumulative size, and outputting the received message, wherein the sequential identification information is an identifier allowing identification of orders managed within a session, transmission and reception being performed in the session, and the cumulative size is the sum of sizes of messages, the messages being sent by a subject having sent the received message within the session, wherein the output order of the received message is decided based upon the sequential identification information and sequential identification information relating to messages received prior to the received message.

Method and apparatus for keeping orders among messages of discrete media type in CPM session

The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and including the content converted into the delivery format in a payload of an IP packet and transmitting same, wherein the delivery format includes composition information on at least one program that configures the content, wherein the program composition information further includes version information for expressing the version of the program composition information that is delivered through the IP packet.

Method for transmission/reception of internet-based content and transmitter/receiver using same

The present invention relates to a method for transmitting/receiving through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and including the content converted into the delivery format in a payload of an IP packet and transmitting same, wherein one or more mdats, which are included in an mdat box of the file format, are cut according to a time window and sequentially included in the delivery format in the transforming step.

Method for transmitting/receiving content and transmitter/receiver using same

The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and transmitting the content converted into the delivery format using an IP packet, wherein the file format and/or the delivery format includes priority information for expressing whether data that makes up the content is played back in default.

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Seoul, South Korea

Kangsuk Huh