Music composition data transmission recording method and music composition reproduction device

Abstract

A song in a music player is replaced by another song in a server in accordance with the user's estimated preferences without requiring the user to become conscious of individual songs. A music player in a server detects a size of a free space in a memory and a playback history (a substantial playback count, which denotes the number of times a song was continuously played for a duration not shorter than a predetermined one, or a skip count, which denotes the number of times a song was played for a duration shorter than a predetermined one) of every song recording, and judges whether any song should be deleted from the memory to permit a song to be downloaded into the music player from the server. If any song should be deleted, a CPU selects a song having a small evaluation function as the song to be deleted.

1 . A content data transfer method for transferring first content data from a server to a player, the method comprising:
 playing back second content data;   storing a continuous playback count of each second content data of the player, the continuous playback count denoting the number of times second content data was continuously played for a predetermined duration;   selecting the first content data to be transferred to the player based on the continuous playback count; and   transferring the first content data to the player.   
     
     
         2 . The content data transfer method according to  claim 1  further comprising:
 selecting third content data to be deleted from the first content data based on the continuous playback count when the player does not have a capability to store the second content data; and 
 deleting the third content data to be deleted from the player. 
 
     
     
         3 . The music data transfer method according to  claim 1 , the continuous playback count of the third content data is low. 
     
     
         4 . A content data transfer system for transferring first content data from a server to a player, the system comprising:
 a playback system configured to playback second content data;   a storage system configure to store a continuous playback count of each second content data of the player, the continuous playback count denoting the number of times second content data was continuously played for a predetermined duration;   a selection system configure to select the first content data to be transferred to the player based on the continuous playback count; and   a transferring system configure to transfer the first content data to the player.   
     
     
         5 . In a content data transfer system for transferring first content data from a server to a player, the player comprising:
 a playback unit configured to playback second content; and   a storage configure to store a continuous playback count of each second content data of the player, the continuous playback count denoting the number of times other second content data was continuously played for a predetermined duration,   wherein the first content data to be transferred to the player is selected based on the continuous playback count; and   wherein the first content data is transferred to the player.   
     
     
         6 . In a content data transfer system for transferring first content data to a player, the player comprising:
 a playback unit configured to playback second content data; and   a storage configure to store a continuous playback count of each second content data of the player, the continuous playback count denoting the number of times second content data was continuously played for a predetermined duration, the first content data to be transferred to the player is selected based on the continuous playback count, the first content data is transferred to the player.   
     
     
         7 . In a content data transfer system for transferring first content data to a player, the first content data is selected based on continuous playback count of each second content data stored in the player, the continuous playback count denoting the number of times second content data was continuously played for a predetermined duration, the player comprising:
 a playback unit configured to playback second content data; and   a storage configure to store the continuous playback count of each second content data stored in the player.   
     
     
         8 . A method of a player in a content data transfer system for transferring first content data to the player, the method comprising:
 playing back second content data; and   at least one of
 (i) storing a continuous playback count of each second content data of the player, the continuous playback count denoting the number of times second content data was continuously played for a predetermined duration, 
 (ii) selecting the first content data to be transferred to the player based on the continuous playback count, and 
 (iii) selecting third content data to be deleted from the player based on the continuous playback count when the player does not have a capability to store the first content data. 
   
     
     
         9 . A player in a content data transfer system for transferring first content data to the player, the player comprising:
 playback unit configured to playback second content data; and   at least one of
 (i) storage unit configured to store a continuous playback count of each second content data of the player, the continuous playback count denoting the 
   number of times second content data was continuously played for a predetermined duration,
 (ii) selection unit configured to select the first content data to be transferred to the player based on the continuous playback count, and 
 (iii) selection unit configured to select third content data to be deleted from the player based on the continuous playback count when the player does 
   not have a capability to store the first content data.   
     
     
         10 . A method of a server in a content data transfer system for transferring first content data to a player, the method comprising:
 storing; and   at least one of   playing back second content data
 (i) storing a continuous playback count of each second content data of the player, the continuous playback count denoting the number of times second content data was continuously played for a predetermined duration, 
 (ii) selecting the first content data to be transferred to the player based on the continuous playback count, and 
 (iii) selecting third content data to be deleted from the player based on the continuous playback count when the player does not have a capability to store the first content data.