Receiving apparatus and method

Abstract

Partial data related to information data is received, image data corresponding to the received partial data is generated by sequentially processing the received partial data, and the generated image data is output to a display unit. Before output of the image data corresponding to the partial data to the display unit is completed, reception of the information data is started. Then, image data corresponding to the information data is generated by processing the received information data, and image data to be displayed on said display unit is switched to the image data corresponding to the information data from the image data corresponding to the partial data after the reception of the information data is started.

What is claimed is:  
     
         1 . A receiving apparatus, comprising: 
 a reception unit capable of independently receiving information data and partial data related to the information data;    an information processing unit which processes the received data, generates image data corresponding to the received data, and outputs the image data to a display unit; and    a controller which controls said information processing unit to process the partial data, and controls said reception unit to start receiving the information data before output of image data corresponding to the partial data to said display unit is completed,    wherein said controller controls output of said information processing unit such that image data displayed on said display unit is switched to image data corresponding to the information data from image data corresponding to the partial data after reception of the information data is started.    
     
     
         2 . A receiving method comprising: 
 receiving partial data related to information data;    generating image data corresponding to the partial data by sequentially processing the received partial data and outputting the image data to a display unit;    starting reception of the information data before output of the image data corresponding to the partial data to said display unit is completed;    generating image data corresponding to the information data by processing the received information data; and    switching image data to be displayed on said display unit to the image data corresponding to the information data from the image data corresponding to the partial data after the reception of the information data is started.    
     
     
         3 . The receiving method according to  claim 2 , wherein the reception of the information data is started after a predetermined time has passed since output of the image data corresponding to the partial data to said display unit is started.  
     
     
         4 . The receiving method according to  claim 2 , further comprising: 
 decoding the received partial data; and    decoding the received information data,    wherein in said switching, output to said display unit is switched depending on a state of an operation of decoding the partial data and information data.    
     
     
         5 . The receiving method according to  claim 4 , wherein in said switching, output to said display unit is switched from the image data corresponding the decoded partial data to the image data corresponding to the decoded information data.  
     
     
         6 . The receiving method according to  claim 4 , wherein in said switching, output to said display unit is switched by switching input to a decoding unit from the partial data to the information data.  
     
     
         7 . The receiving method according to  claim 2 , wherein in said switching, output to said display unit is switched depending on a matching state between a time-stamp of the partial data and a time-stamp of the information data.  
     
     
         8 . The receiving method according to  claim 2 , wherein in said switching, output to said display unit is switched at a timing when brightness of the image data corresponding to the partial data indicates a minimum value and/or a smallest value.  
     
     
         9 . The receiving method according to  claim 2 , wherein in said switching, output to said display unit can be switched depending on a timing of a movement of image data corresponding to the partial data being minimum and/or small.  
     
     
         10 . The receiving method according to  claim 2 , further comprising: 
 accumulating plural pieces of the received partial data each of which is a part of each of plural pieces of information data whose contents are different from each other;    outputting and displaying plural pieces of image data corresponding to the plural pieces of accumulated partial data; and    starting, in response to selection of at least one of the plural pieces of displayed image data, reception of the information data partly formed by the partial data corresponding to the selected image data.    
     
     
         11 . A receiving apparatus, comprising: 
 a reception unit which receives a plurality of information data streams through a network;    an information processing unit which generates image data corresponding to the information data stream by processing the information data, and outputting the image data to a display unit;    a generation unit which receives partial data of a plurality of information data streams through said reception unit, and-generates a composite stream formed by plural pieces of received partial data;    an accumulation unit which accumulates the composite stream generated by said generation unit;    an instruction unit which selects one of said plurality of information data streams, and designates reception of the selected information data stream; and    a controller which reads partial data corresponding to the information data stream designated by said instruction unit from the composite stream accumulated in said accumulation unit, outputs the read data to said information processing unit, and outputs the processed partial data to said display unit.