Transfer rate controller, decoding system, medium, and information aggregate

Abstract

A transfer rate controller, has input means of inputting a picture or sound stream; packet rate adjusting means of controlling a transfer rate of the stream by adjusting an interval between packets respectively belonging to each frame of the inputted stream; and output means of outputting the stream outputted from the packet rate adjusting means.

1 . A transfer rate controller, comprising: 
 input means of inputting a picture or sound stream including a plurality of frames, each frame consists of a plurality of packets;    transfer rate adjusting means of controlling a transfer rate of the inputted stream by adjusting an interval between packets respectively belonging to each frame of the inputted stream and holding an interval between start of outputting a picture and start of outputting the subsequent picture;    output means of outputting the stream outputted from the packet rate adjusting means.    
   
   
       2 . The transfer rate controller comprising; 
 input means of inputting a picture or sound stream including a plurality of frames, each frame consists of a plurality of packets;    transfer rate adjusting means of controlling a transfer rate of the inputted stream by thinning out frames of the inputted stream partially;    output means of outputting the stream outputted from the packet rate adjusting means.    
   
   
       3 . The transfer rate controller according to  claim 2 , the packet rate adjusting means adjusts an interval between packets which are respectively belonging to each frame of the inputted stream and not thinned out.  
   
   
       4 . The transfer rate controller, comprising: 
 input means of inputting a picture or sound stream including a plurality of frames, each frame consists of a plurality of packets;    transfer rate adjusting means of controlling a transfer rate of the inputted stream by adjusting an interval between packets respectively belonging to each frame of the inputted stream;    output means of outputting the stream outputted from the packet rate adjusting means;    wherein, if a decoder whose buffer is inputted the stream outputted from the output means serves a warning signal indicating that the buffer is going to overflow, the transfer rate adjusting means thins out frames of the inputted stream partially in response to the warning signal.    
   
   
       5 . A method of transferring a data stream from a reproducing device to a decoder comprising the steps of: 
 (a) inputting a picture or sound stream including a plurality of frames, each frame consists of a plurality of packets;    (b) adjusting an interval between packets respectively belonging to each frame of the inputted stream;    (c) holding an interval between start of outputting a picture and start of outputting the subsequent picture;    (d) outputting the stream whose transfer rate is adjusted by step (b) and held by step (c).    
   
   
       6 . A method of transferring a data stream from a reproducing device to a decoder comprising the steps of: 
 (a) inputting a picture or sound stream including a plurality of frames, each frame consists of a plurality of packets;    (b) controlling a transfer rate of the inputted stream by thinning out frames of the inputted stream partially;    (c) outputting the stream whose transfer rate is adjusted by step (b).    
   
   
       7 . The method of transferring a data stream according to  claim 6 , further comprising step: 
 (d) adjusting an interval between packets which are respectively belonging to each frame of the inputted stream and not thinned out;    wherein the step (c) outputs the stream whose transfer rate is thinned by step (b) and adjusted by step (d).    
   
   
       8 . A method of transferring a data stream from a reproducing device to a decoder, comprising: 
 (a) inputting a picture or sound stream including a plurality of frames, each frame consists of a plurality of packets;    (b) controlling a transfer rate of the inputted stream by adjusting an interval between packets respectively belonging to each frame of the inputted stream;    (c) outputting the stream outputted from the packet rate adjusting means;    (d) receiving a warning signal indicating that a buffer of the decoder is going to overflow from the decoder;    (e) thinning out frames of the inputted stream by step (a) partially in response to the warning signal.