Abstract: Provided is a new-type cis-replicon construct for efficiently expressing a target protein, which comprises an RNA polymerase coding unit and a target protein coding unit. The replicon construct can drive the replication of the target protein coding unit and reduce or avoid the replication and expression of the RNA polymerase, thereby effectively improving the expression of the target protein and reducing the expression of the non-target protein.

Abstract: The present invention relates to the multimedia field, and discloses a method, a device, and a system for controlling content report behavior. The method includes: receiving a request for subscribing to a configuration update notification, in which the request is sent by the terminal or the media control function, and a configuration update request that is sent by an SCF and carries the new content report configuration information, and sending a configuration update notification message to the terminal or the media control function, where the configuration update notification message carries the new content report configuration information or acquiring information thereof. The method of the present invention avoids using the message body of the SIP message to transmit the content report configuration information, is compliant and compatible with logic for processing a SIP INFO message specified in the RFC 2976.

Abstract: Embodiments of the present invention disclose a method, apparatus and system for obtaining key information during fast channel switching. A fast channel switching request sent by a terminal is received; at least one data unit bearing key information is generated according to the fast channel switching request; a fast channel switching response message is sent to the terminal, where the response message carries an identifier of a first data unit bearing the key information and the number of data units bearing the key information; and the at least one data unit bearing the key information is sent to the terminal. When the key information is lost, the key information is retransmitted without a need to perform status maintenance, which improves scalability of fast channel switching.

Abstract: A method and an apparatus for supporting time shift playback in an adaptive Hypertext Transfer Protocol (HTTP) streaming transmission solution are disclosed. The method includes: sending a live media presentation description (MPD) request message to a media server; receiving a response message that includes MPD for a current time period, where the MPD further includes media presentation information for another time period; determining that a moment of a media segment to be requested currently exceeds a time range corresponding to the MPD; acquiring the corresponding MPD according to the media presentation information corresponding to the media segment, and requesting, according to the acquired corresponding MPD, the media segment. In this manner, a client supports time shift playback of a larger time range, and at the same time, the size of the MPD is capable of remaining in an acceptable range.

Abstract: A method for implementing fast playout includes receiving a fast playout request sent by a client, where the fast playout request comprises a Uniform Resource Locator (URL) corresponding to content of a media file with a specified multiple of regular playout rate by the client, and the specified multiple of regular playout rate is determined by the client according to obtained media presentation description; and obtaining a content segment corresponding to the media file with the specified multiple of regular playout rate according to the URL, and sending a fast playout response to the client, where the fast playout response comprises the content segment corresponding to the media file with the specified multiple of regular playout rate. Therefore, fast online playing is implemented, and user experience is improved at the same time.

Abstract: A method and an apparatus for supporting time shift playback in an adaptive Hypertext Transfer Protocol (HTTP) streaming transmission solution are disclosed. The method includes: sending a live media presentation description (MPD) request message to a media server; receiving a response message that includes MPD for a current time period, where the MPD further includes media presentation information for another time period; determining that a moment of a media segment to be requested currently exceeds a time range corresponding to the MPD; acquiring the corresponding MPD according to the media presentation information corresponding to the media segment, and requesting, according to the acquired corresponding MPD, the media segment. In this manner, a client supports time shift playback of a larger time range, and at the same time, the size of the MPD is capable of remaining in an acceptable range.

Abstract: A method and an apparatus for supporting time shift playback in an adaptive HTTP streaming transmission solution are disclosed. The method includes: sending a live MPD request message to a media server; receiving a response message that includes MPD for a current time period, where the MPD further includes media presentation information for another time period; determining that a moment of a media segment to be requested currently exceeds a time range corresponding to the MPD; acquiring the corresponding MPD according to the media presentation information corresponding to the media segment, and requesting, according to the acquired corresponding MPD, the media segment. In this manner, a client supports time shift playback of a larger time range, and at the same time, the size of the MPD is capable of remaining in an acceptable range.

Abstract: The present invention discloses a method and device for applying parental control in media. Corresponding parental control rating information is set for media contents in different time periods in the single media presentation; the parental control rating information is sent to a client; and the client processes the media contents in the single media presentation according to the parental control rating information, so as to make the effect of the parental control accurate.

Abstract: In the field of media transmission technologies, a method and an apparatus for transmitting Hypertext Transfer Protocol (HTTP) media are provided, which solve a problem that a specific capability mode to be used cannot be determined when both a server and a client have enhanced functions. In the method and system for transmitting the HTTP media, the respective information of HTTP streaming media capabilities supported by the server and by the client are obtained. According to the obtained information of the HTTP streaming media capabilities supported by the server and supported by the client, the HTTP streaming media capability used by the server or the client in a subsequent media transmission procedure is determined. The server provides media services according to the determined HTTP streaming media capability; or the client obtains the media services according to the determined HTTP streaming media capability.

Abstract: A method for implementing fast playout includes receiving a fast playout request sent by a client, where the fast playout request comprises a Uniform Resource Locator (URL) corresponding to content of a media file with a specified multiple of regular playout rate by the client, and the specified multiple of regular playout rate is determined by the client according to obtained media presentation description; and obtaining a content segment corresponding to the media file with the specified multiple of regular playout rate according to the URL, and sending a fast playout response to the client, where the fast playout response comprises the content segment corresponding to the media file with the specified multiple of regular playout rate. Therefore, fast online playing is implemented, and user experience is improved at the same time.

Abstract: A method for hierarchically requesting contents in a HTTP streaming system is provided, which includes: receiving a service information obtaining request transmitted from a client; returning a service information obtaining request response comprising media presentation description information comprising URL corresponding to multi-level service content; receiving a service request message being a GET message transmitted from the client, wherein the service request message comprises the URL of the multi-level service content; and returning to the client a service request message response comprising the service content corresponding to the URL of the multi-level service content, so that the contents are searched for directly according to the URL, thereby improving processing efficiency.

Abstract: A method for implementing fast playout is provided, which comprises: receiving a fast playout request sent by a client, where the fast playout request comprises a Uniform Resource Locator (URL) corresponding to content of a media file with a specified multiple of regular playout rate by the client, and the specified multiple of regular playout rate is determined by the client according to obtained media presentation description; and obtaining a content segment corresponding to the media file with the specified multiple of regular playout rate according to the URL, and sending a fast playout response to the client, where the fast playout response comprises the content segment corresponding to the media file with the specified multiple of regular playout rate. Therefore, fast online playing is implemented, and user experience is improved at the same time.

Abstract: In the field of media transmission technologies, a method and an apparatus for transmitting Hypertext Transfer Protocol (HTTP) media are provided, which solve a problem that a specific capability mode to be used cannot be determined when both a server and a client have enhanced functions. In the method and system for transmitting the HTTP media, the respective information of HTTP streaming media capabilities supported by the server and by the client are obtained. According to the obtained information of the HTTP streaming media capabilities supported by the server and supported by the client, the HTTP streaming media capability used by the server or the client in a subsequent media transmission procedure is determined. The server provides media services according to the determined HTTP streaming media capability; or the client obtains the media services according to the determined HTTP streaming media capability.

Abstract: Example embodiments provide a program recommendation mechanism that allows a user to recommend select portions of a media stream. For instance, one embodiment allows a terminal of a recommendation receiver to receive a recommendation message sent by a terminal of a recommendation originator, wherein the recommendation message includes a program identity (ID), an ID of a part of program stream recommended by the recommendation originator, or both. Further, an instruction message for instructing a media function (MF) server to deliver the part of program stream of the program is sent according to the program ID, the ID of the part of program stream, or both. Thereafter, the part of program stream delivered by the MF is received and played.