Method and device for controlling information signal recording

Abstract

An anti-duplication control signal detection section detects an anti-duplication control signal added on a video signal S 1 and supplies it to a system controller as a duplication prevention control information S 2. A write control section of the system controller stops the duplication of the video signal in a disk if the anti-duplication control information is an information which indicates duplication inhibition. In this case, the video signal recorded in the disk is erased under the control from the erasing control section by the time the duplication prevention control corresponding to the anti-duplication control signal becomes active.

What is claimed is:  
     
         1 . An information signal recording control method for controlling recording of an information signal in a recording medium correspondingly to the content of an anti-duplication control signal added on an information signal comprising: 
 a step for detecting said anti-duplication control signal added on said information signal;    a step for stopping said recording of said information signal in said recording medium when said content of the duplication prevention control of said detected anti-duplication control signal is judged to be duplication-inhibited; and    a step for erasing from said recording medium at least said information signal recorded by the time said recording of said information signal in said recording medium is brought to a stop.    
     
     
         2 . The information signal recording control method as claimed in    claim 1   , wherein a recording region information including the starting point and the ending point of said recording on said recording medium where said information signal is recorded is stored, and said recorded information signal is erased based on said recording region information.  
     
     
         3 . The information signal recording control method as claimed in    claim 1   , wherein all the information in said recording medium is erased when said recording of said information signal in said recording medium is brought to a stop.  
     
     
         4 . An information signal recording control method for controlling recording of an information signal in a recording medium correspondingly to the content of an anti-duplication control signal added on an information signal comprising: 
 a step for detecting said anti-duplication control signal added on said information signal;    a step for stopping said recording of said information signal in said recording medium when said content of the duplication prevention control of said detected anti-duplication control signal is judged to be duplication-inhibited; and    a step for making said recording operation of said information signal impossible thereafter.    
     
     
         5 . The information signal recording control method as claimed in    claim 4   , wherein the number of duplication-inhibited judgments of said content of said detected anti-duplication control signal is counted, and said recording operation of said information signal is made impossible thereafter when said number of judgment reaches a prescribed number.  
     
     
         6 . An information signal recording control device for controlling recording of an information signal in a recording medium correspondingly to the content of an anti-duplication control signal added on an information signal provided with: 
 an anti-duplication control signal detection means for detecting said anti-duplication control signal added on said information signal;    a recording control means for stopping said recording of said information signal in said recording medium when said content of the duplication prevention control of said detected anti-duplication control signal is judged to be duplication-inhibited, and    an erasing means for erasing from said recording medium at least said information signal recorded by the time said recording of said information signal in said recording medium is brought to a stop.    
     
     
         7 . The information signal recording control device as claimed in    claim 6   , wherein a memory means for storing a recording region information including the starting point and the ending point of said recording in said recording medium where said information signal is recorded is provided, and recorded said information signal is erased based on said recording region information.  
     
     
         8 . The information signal recording control device as claimed in    claim 7   , wherein said erasing control means erases all the information in said recording medium when said recording of said information signal in said recording medium is brought to a stop.  
     
     
         9 . An information signal recording control device for controlling recording of an information signal in a recording medium correspondingly to the content of an anti-duplication control signal added on an information signal provided with: 
 an anti-duplication control signal detection means for detecting said anti-duplication control signal added on said information signal;    a recording control means for stopping said recording of said information signal in said recording medium when said content of the duplication prevention control of said detected anti-duplication control signal is judged to be duplication-inhibited; and    a control means for making said recording operation impossible thereafter.    
     
     
         10 . The information signal recording control device as claimed in    claim 9   , wherein the number of duplication-inhibited judgments of said content of said detected anti-duplication control signal is counted, and said recording operation of said information signal is made impossible thereafter when said number of judgment reaches a prescribed number.  
     
     
         11 . An information signal recording control device for controlling recording of an information signal in a recording medium correspondingly to the content of an anti-duplication control signal added on an information signal provided with: 
 a recording signal processing means for receiving supply of an information signal and generating an recording information signal;    a recording and erasing means capable of recording said recording information signal supplied from said recording signal processing means in a recording medium, and of erasing said recording information signal recorded in said recording medium;    an anti-duplication control signal detection means for detecting said anti-duplication control signal added on said information signal;    a recording control means for controlling said recording signal processing means so as to stop supply of said recording information signal to said recording medium when said content of said duplication prevention control of detected said anti-duplication control signal is judged to be duplication-inhibited; and    an erasing control means for controlling said recording and erasing means so as to erase from said recording medium said information signal recorded by the time recording of said information signal on said recording medium is brought to a stop based on said content of said anti-duplication control signal.    
     
     
         12 . The information signal recording control device as claimed in    claim 11   , wherein a memory means for storing a recording region information including the starting point and the ending point of said recording on said recording medium where said information signal is recorded is provided, and recorded said information signal is erased based on said recording region information.  
     
     
         13 . The information signal recording control device as claimed in    claim 12   , wherein said recording medium is a disk-type recording medium, and said starting point and ending point of said recording are indicated with the address in said disk-type recording medium.  
     
     
         14 . The information signal recording control device as claimed in    claim 12   , wherein said recording medium is a tape-type recording medium, and said starting point and ending point of said recording are indicated with the value of a tape counter provided on said recording and erasing means.