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Apparatus-and-method-for-remultiplexing-and-coding-multimedia-information

Distribution of television signals to workstations

It is therefore an object of the present invention to provide a video server that provides a ...

Television system distributing a dynamically varying number of concurrent video presentations over a single television channel

The present invention provides a television system which increases the capacity of television ...

Webcam-based interface for initiating two-way video communication and providing access to cached video

OF THE PREFERRED EMBODIMENTS The present invention solves the foregoing problems and disadvantages ...

Apparatus for decoding video signals encoded in different formats

In accordance with the present invention it is recognized that a signal processing network can ...

Digital television (HDTV) and analog television (NTSC) broadcast systems combined for simultaneous broadcast

As stated above, the present invention has application to many broadcast systems where two channels ...

Information-signal recording apparatus and recording mode inquiring/specifying method

It is an object of the present invention to control the audio recording mode of a VTR with a ...

Device control with topology map in a digital network

Accordingly, in one embodiment, a topology map for a digital system is generated and displayed on a ...

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In accordance with one aspect of the present invention, there is provided a DBS receiving system ...

Peripheral software download of a broadcast receiver

The present invention relates to a system and method for downloading update data to a peripheral ...

Display signal processing device having a controllable LED display

The term "display signal" as used herein generically refers to any signal displayed on an LED and ...

Apparatus and method for remultiplexing and coding multimedia information

Details

Inventors: Kato, Yoshiaki; Fujita, Yuka; Murakami, Tokumichi;
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Martin-Wallace; Valencia
Assistant Examiner: Nguyen; Kim T.
Attorney, Agent or Firm:

The remultiplexing apparatus includes a control information selector that selects a packet containing program control information from the inputted bit stream, a program control information editor that edits contents of the selected program control information and generates new program control information corresponding to an outputted bit stream, and a remultiplexer for multiplexing again the packet containing media information in the inputted bit stream and the program control information generated by the program control information editor.

DETAILED DESCRIPTION It is an object of the present invention to provide more numbers of programs without any change in the configuration of a receiving terminal of bit streams by remultiplexing a plurality of multiplexed bit streams (e.
g.
transport streams) and transmitting the new remultiplexed bit streams.
By transmitting a number of programs in batch, it is possible to obtain a high transmission efficiency, to transmit a bit stream to transmission paths each having a different transmission speed, and to realize transmission of only required programs or of only programs with the same viewability with the function for selectively remultiplexing bit streams.
Also with the function for correcting program clock information contained in a bit stream or the function for preferentially transferring packets each containing program clock information, program clock information contained in a bit stream after subjected to remultiplexing can be compensated.
A remultiplexing apparatus according to the present invention comprises a control information selecting means for selecting a packet containing program control information from inputted bit streams, a program control information editing means for editing contents of the selected program control information and generating new program control information corresponding to a bit stream to be outputted, and a remultiplexing means for remultiplexing the program control information generated by the program control information editing means with a packet containing media information in the inputted bit stream.
The remultiplexing apparatus comprises the program control information editing means also for updating contents of the program control information in a case where the contents of the program control information contained in the inputted bit stream is updated.
The remultiplexing apparatus comprises the control information selecting means or the remultiplexing means for removing a null packet from inputted bit stream.
The remultiplexing apparatus comprises a means for preferentially multiplexing a packet containing program clock information for regenerating a system clock in the receiving side

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