摘要:
The object of this invention is to realize the correct and prompt synchronization of data in decoding and reproducing multiplexed coded data multiplexed with a plurality of media coded data in the unit of packet without regard to the configuration or characteristics of the apparatus. To achieve a data decoder that can synchronize the video and audio data correctly, the timing controller obtains a buffering time indicated by the time difference between the decoding end time and the specified presentation time contained in the data, and data buffering is performed by buffer memory. The video decoding end time is latched from the system time counter according to a timing pulse generated by the video decoder when the first decoded data is output from video decoder after the data decoder is activated.
摘要:
The present invention introduces an apparatus and method for securing a constant bit rate in transmitting various types of media data through multiplexing over an ATM network so as to achieve a constant bit rate communication. Received video/audio information from an information source is encoded at an information source encoder and outputted to a media multiplexer as encoded video/audio information. The media multiplexer multiplexes encoded the video/audio information to obtain fixed-length data as transmission data. The media multiplexer, upon reception of a transmission enable signal from a line interface unit, transmits the transmission data to the line interface unit. The line interface unit assembles the transmission data on an ATM cell format basis and transmits cell data,over the ATM network.
摘要:
A plurality of media data coding and multiplexing apparatus are connected, a video signal having a large information amount is processed in parallel in the plurality of media data coding and multiplexing apparatus, other media data pieces of an audio signal and a data signal are processed in one of the plurality of the media data coding and multiplexing apparatus, and a multiplexing section of the one of the plurality of the media data coding and multiplexing apparatus combines the signals and output multiplex streams output from other media data coding and multiplexing apparatus into one output multiplex stream.
摘要:
Communication is performed without paying attention to the fact that the communication is executed between multimedia terminals having communication procedures differing from each other. A terminal 2 starts a communication procedure that is necessary to establish a communication path to a communication service unit 1, in order to execute communication with a multimedia terminal 3; when a communication protocol conversion unit 7 receives communication start request from the terminal 2, the communication service unit executes identification process of a calling terminal based on the identification number, which exists in communication start request, for determining the multimedia terminal 2, and inquires a terminal information managing unit 9 of the calling terminal. The terminal information managing unit 9 retrieves terminal information related to the calling terminal based on a terminal information request, and informs of the retrieved terminal information to the communication protocol conversion unit 7. The communication protocol conversion unit 7 informs of the communication start request to the terminal 3 when the transmitting the terminal information of the terminal 2 is obtained, and continues a relay process in communication procedure, which is necessary for following establishment of a communication path.
摘要:
Communication is performed without paying attention to the fact that the communication is executed between multimedia terminals having communication procedures differing from each other.A terminal 2 starts a communication procedure that is necessary to establish a communication path to a communication service unit 1, in order to execute communication with a multimedia terminal 3; when a communication protocol conversion unit 7 receives communication start request from the terminal 2, the communication service unit executes identification process of a calling terminal based on the identification number, which exists in communication start request, for determining the multimedia terminal 2, and inquires a terminal information managing unit 9 of the calling terminal. The terminal information managing unit 9 retrieves terminal information related to the calling terminal based on a terminal information request, and informs of the retrieved terminal information to the communication protocol conversion unit 7. The communication protocol conversion unit 7 informs of the communication start request to the terminal 3 when the transmitting the terminal information of the terminal 2 is obtained, and continues a relay process in communication procedure, which is necessary for following establishment of a communication path.
摘要:
A monitor server apparatus 102 in accordance with the present invention includes: a UI presenting means 304 for presenting a UI for displaying information and for receiving an input; a display data generating means 303 for generating display data to be displayed on the UI; an item list receiving means 301 for receiving a list of items listed each of which is described as metadata; an item list storing means 302 for storing the item list; an input key receiving means 305 for receiving a key input; and an identification information transmitting means 306 for transmitting identification information making it possible to identify each of the items included in the item list uniquely.
摘要:
When a service receiving server 1 receives a request of a multi-point communication service from communication terminals 3A to 3C, a service ID corresponding to the multi-point communication service and passwords are respectively sent to the communication terminals 3A to 3C receiving the multi-point communication service and are sent to a communication service unit 2. When the communication service unit 2 receives the service ID and the password from the communication terminals 3A to 3C, the communication service unit 2 collates whether or not the service ID and the password sent from the communication terminals 3A to 3C agree with those sent from the service receiving server 1. In case of the agreement, the communication service unit 2 connects with the group of communication terminals 3A to 3C and provides the multi-point communication service for the communication terminals 3A to 3C according to the service ID.
摘要:
A recording reservation common share system includes a recording schedule sharing apparatus 1A which makes a request for recording schedule information, and which acquires and checks recording schedule information provided thereto, and recording schedule sharing apparatuses 1B and 1C each of which receive a request for recording schedule information from the recording schedule sharing apparatus 1A, and provides the recording schedule information held thereby to the recording schedule sharing apparatus 1A.
摘要:
A metadata storing/receiving means 206 stores metadata acquired from a metadata providing terminal by using a metadata acquisition request. A filtering means 209 selects metadata stored in the metadata storage means 206 by using at least of a degree of preference and a degree of affinity.
摘要:
A conditional access system includes an EMM (Entitlement Management Message) analyzer for retrieving partial viewing authorization information. When the partial viewing authorization information permits partial viewing, ECM (Entitlement Control Message) is decrypted using work keys, and scrambling keys are intermittently retrieved from the ECM. This can solve a problem of a conventional conditional access system in that an unauthorized user's receiver cannot display pictures at all because the receiver cannot retrieve scrambling keys, and hence the user cannot enjoy a program even to such a degree as to perceive its feeling as in analog broadcasting systems, and thus the user cannot decide as to whether to make contract or not with viewing the program to some extent, which prevents the provider of the program from offering effective invitation to the user.