Method for recording information on a memory

Abstract

A reference value is set for recording quantity of information, and a plurality of compression factors is provided for compressing information to be recorded. The compression factors are arranged in order. The information is sequentially recorded on a first memory at a first compression factor of the arrangement of the compression factors. It is determined whether the recording quantity of a first information group reaches the reference value. The first information group is compressed at a larger second compression factor when the recording quantities reaches the reference value, and the compressed first information group is recorded on the first memory at a first area. A second information group following the first information group is compressed at the second compression factor, and the compressed second information group is recorded on the first memory at a second area next to the first area. It is determined whether the sum of the recorded first and second information groups reaches the reference value. The recorded first and second information group are compressed at a further larger third compression factor. The compression of the information groups at succeeding compression factors and recording of the compressed information groups are repeated until end of the information to be recorded.

What is claimed is:  
     
         1 . A method for recording information on a memory comprising the steps of: 
 setting a reference value for recording quantity of information;    providing a plurality of compression factors for compressing information to be recorded;    sequentially recording the information on a memory at a first compression factor;    determining whether a recorded quantity reaches the reference value;    compressing following data at a second compression factor when the recorded quantity reaches the reference value;    recording th information compressed at the second compression factor on the memory;    repeating the compression of the information at succeeding compression factors and recording of the compressed information until end of the information to be recorded.    
     
     
         2 . A method for recording information on a memory comprising the steps of: 
 setting a reference value for recording quantity of information;    providing a plurality of compression factors for compressing information to be recorded;    sequentially recording the information on a first area of a first memory at a first compression factor;    determining whether a recorded quantity of a first information group reaches the reference value;    compressing a second information group following the first information group at a second compression factor when the recorded quantity of the first information group reaches the reference value;    recording the compressed second information group on the first memory on a second area;    determining whether the recorded quantity of the second information group recorded in the second area reaches the reference value;    compressing a third information group at a third compression factor when the recorded quantity reaches the reference value;    repeating the compression of the information groups at succeeding compression factors and recording of the compressed information groups until end of the information to be recorded.    
     
     
         3 . The method according to    claim 2    further comprising compressing the first information group at the second compression factor when the recorded quantity thereof reaches the reference value in parallel with the step of compressing of the second information group, determining whether the sum of the recorded first and second information groups reaches the reference value, compressing the recorded first and second information groups at the third compression factor.  
     
     
         4 . The method according to    claim 2    wherein the compressed information groups are finally recorded in a desired second memory.  
     
     
         5 . The method according to    claim 2    wherein the first memory is a desired second memory.  
     
     
         6 . The method according to    claim 2    wherein the compression factor is increased at every change of the compression factor.  
     
     
         7 . The method according to    claim 2    wherein the order of the compression factor is decreased at every change of the compression factor.  
     
     
         8 . The method according to    claim 2    wherein the reference value is set in accordance with the capacity of the first memory.  
     
     
         9 . A method for recording information on a memory comprising the steps of: 
 setting a plurality of reference values for recording quantity of information;    providing a plurality of compression factors for compressing information to be recorded;    sequentially recording the information on a memory at a first compression factor;    determining whether a recorded quantity reaches the reference value;    compressing following data at a second compression factor when the recorded quantity reaches the reference value;    recording the information compressed at the second compression factor on the memory;    repeating the compression of the information at succeeding compression factors and recording of the compressed information until end of the information to be recorded.    
     
     
         10 . The method according to    claim 9    wherein the reference values are arranged in an increasing order in quantity.