PLAYBACK DEVICE

• US 20090282102A1
• Filed: 05/16/2006
• Published: 11/12/2009
• Est. Priority Date: 05/27/2005
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Geurts, Lucas Jacobus Franciscus, Andrews, Anton Oguzhan Alford
• Application Number:
  US11/915,022
• Publication Number:
  US 20090282102A1
• Time in Patent Office: Days
• US Class Current: 709/204
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]

Abstract

A playback device comprising playback means for playing content and wireless communication means for communicating with another device that is within communication range, further comprising content management means for identifying a content item available from the other device, for making the identified content item available for playback by the playback means for as long as the other device is in communication with the playback device and for retaining a ghost reference to the identified content item after detecting the other device is no longer in communication with the playback device.

Claims

1. A playback devices, comprising:

playback means for playing content;

wireless communication means for communicating with another playback device that is within communication range; and

content management means for identifying a content item available from the other device, causing the identified content item to be copied from the other device to a storage medium included in the playback device, enabling playback by the playback means for as long as the other device is in communication with the playback device and retaining a ghost reference to the identified content item in the place of the content item itself after detecting the other device is no longer in communication with the playback device.

3. The device of claim 1, wherein the content management means are configured for retaining a sample part of the identified content item after detecting the other device is no longer in communication with the playback device, sample part being retained together with the ghost reference.

4. The device of claim 3, wherein the sample part is received together with the identified content item.

6. The device of claim 3, wherein the sample part is taken as the first n seconds of the identified content item, where n is a predetermined amount of time.

7. The device of claim 3, further comprising summarizing means for deriving the sample part from the identified content item.

8. The device of claim 1, wherein the content management means are configured for retaining a reduced quality version of the identified content item after detecting the other device is no longer in communication with the playback device.

9. The device of claim 8, wherein the reduced quality version includes one of a lower sample rate version, a mono version of an original stereo version, and a version containing noise or other interruptions.

10. The device of claim 8, wherein the content management means are configured for reducing the quality of the reduced quality version further over time and/or further upon each playback of the reduced quality version.

11. The device of claim 1, wherein the content management means are configured for initiating a purchase of the identified content item when the ghost reference is accessed.

2. (canceled)

5. (canceled)