Communication system and its method and communication apparatus and its method

CAFC
  • US 9,712,614 B2
  • Filed: 03/28/2014
  • Issued: 07/18/2017
  • Est. Priority Date: 09/21/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A communication apparatus comprising:

  • a memory configured to store musical content data and a plurality of program lists associated with the musical content data;

    adata interface configured to interface with an external reproduction apparatus; and

    circuitry configured tocontrol playback of musical content data based on a program list so that the musical content data referenced in the program list is played back as a collection, the program list being associated with a predetermined identifier uniquely identifying a predetermined external reproduction apparatus among a plurality of external reproduction apparatuses,control presentation of the program list to a user via a user interface,accept edits to the program list via the user interface,determine whether an identifier received by the circuitry via the data interface is the predetermined identifier,control transfer of the musical content data to the predetermined external reproduction apparatus via the data interface based on the program list when the received identifier is the predetermined identifier without receiving information on selection of the musical content data from the predetermined external reproduction apparatus,compare the program list with a second list of musical content data stored in the predetermined external reproduction apparatus,identify a piece of musical content data common to the program list and the second list based on the result of the comparison, andcontrol transfer to the predetermined external reproduction apparatus of the musical content data that is in the program list and is not in the second list of musical content data based on the result of the comparison such that transfer of the identified piece of musical content data common to the program list and the second list is omitted.

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