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Communication system and its method and communication apparatus and its method

  • US 10,645,161 B2
  • Filed: 09/06/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 09/21/1999
  • Status: Expired due to Term
First Claim
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1. A communication system for the synchronization of digital musical content data, the communication system including a portable computing device having a first hardware storage medium, and a computing device, said computing device, comprising:

  • a second hardware storage medium configured to storemanagement information of digital musical content data to be transferred from the computing device tosaid first storage medium;

    a hardware interface configured to transfer digital musical content data from the computing device to said portable computing device;

    a processor configured to;

    detect whether said computing device and said portable computing device are connected;

    select certain digital musical content data to be transferred from the computing device to said first storage medium;

    edit said management information based on said selection without regard to the connection of said computing device and said portable computing device;

    compare said management information edited by said processor with management information of digital musical content data stored in said first storage medium; and

    transfer the selected digital musical content data stored in said computing device to said portable computing device via said hardware interface based on said management information edited by said processor, wherein said transfer is performed when said processor detects that said portable computing device and said computing device are connected based upon a result of the comparison, wherein on completion of said transfer, the digital musical content data is synchronized between the computing device and the portable computing device.

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