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Publication numberWO2005013047 A3
Publication typeApplication
Application numberPCT/US2004/023102
Publication date9 Apr 2009
Filing date2 Jul 2004
Priority date28 Jul 2003
Also published asCA2533852A1, CA2533852C, CA2842342A1, CA2842342C, CN101410773A, CN101410773B, CN102281294A, CN102281294B, EP1654614A2, EP1654614A4, EP1654614B1, EP2648111A1, EP2648111B1, EP2713281A1, EP2866152A1, EP2866152B1, US8234395, US8370678, US8689036, US8938637, US9158327, US9164531, US9164532, US9164533, US9170600, US9176519, US9176520, US9182777, US9189010, US9189011, US9195258, US9213356, US9213357, US9218017, US9348354, US9354656, US9658820, US9727302, US9727303, US9727304, US9733891, US9733892, US9733893, US9740453, US9778897, US9778898, US9778900, US20070038999, US20120029671, US20120117200, US20120185072, US20120191232, US20120192071, US20130094670, US20130097290, US20130097505, US20130097506, US20130116810, US20130208911, US20130208921, US20130226323, US20130231765, US20130231766, US20130232214, US20130232415, US20130232416, US20130236029, US20130238108, US20130254419, US20130268104, US20140074271, US20140173432, US20140177875, US20140181173, US20140181569, US20150016626, US20150018994, US20150036994, US20150039109, US20150095689, US20160209867, US20160210112, US20160212722, US20160216880, US20160216936, US20160216937, US20160216938, US20160216939, US20160259620, US20160261692, US20160342385, US20160357499, WO2005013047A2
Publication numberPCT/2004/23102, PCT/US/2004/023102, PCT/US/2004/23102, PCT/US/4/023102, PCT/US/4/23102, PCT/US2004/023102, PCT/US2004/23102, PCT/US2004023102, PCT/US200423102, PCT/US4/023102, PCT/US4/23102, PCT/US4023102, PCT/US423102, WO 2005/013047 A3, WO 2005013047 A3, WO 2005013047A3, WO-A3-2005013047, WO2005/013047A3, WO2005013047 A3, WO2005013047A3
InventorsNicholas A J Millington
ApplicantSonos Inc, Nicholas A J Millington
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Inter-client synchrony management using differential clock adjustments
WO 2005013047 A3
Abstract
A system for maintaining synchronous operation execution among a plurality of devices that have independent clocking arrangements. The system includes a task distribution device (11) that distributes tasks to synchrony group members (15) over a network (12). Each task (51) is associated with a time stamp (60) that indicates a time, relative to a clock (43) maintained by the task distribution device (11), at which the synchrony group members (15) are to execute the task. Synchrony group members (15) periodically obtain current time indications from the task distribution device's clock (43), determine a time differential between the task distribution device's clock (43) and its respective clock, and then use the differential and time stamp to determine an execution time of the task based on its respective clock.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US7312785 *26 Sep 200225 Dec 2007Apple Inc.Method and apparatus for accelerated scrolling
US20010032188 *26 Feb 200118 Oct 2001Yoshiyuki MiyabeInformation distribution system
US20030099212 *19 Nov 200229 May 2003Farooq AnjumEfficient piconet formation and maintenance in a bluetooth wireless network
US20040203378 *18 Dec 200214 Oct 2004Microsoft CorporationPersistent peer-to-peer networking over a piconet network
Non-Patent Citations
Reference
1 *HUANG ET AL.: "A Synchronization Infrastructure for Multicast Multimedia at the Presentation Layer.", IEEE TRANSACTIONS ON COMSUMER ELECTRONICS, vol. 43, no. 3., August 1997 (1997-08-01), pages 370 - 380, XP011008401
2 *ISHIBASHI ET AL.: "A Group Synchronization Mechanism for Live Media in Multicast Communications.", IEEE GLOBECOM., November 1997 (1997-11-01), pages 746 - 752, XP010254701
3 *JO ET AL.: "Synchronized One-to-Many Media Streaming with Adaptive Playout Control.", PROCEEDINGS OF SPIE, vol. 4861, December 2002 (2002-12-01), pages 71 - 82, XP008110459
4 *MILLS, D. L.: "Network Time Protocol Specification, Implementation and Analysis.", REQUEST FOR COMMENTS: 1305. NETWORK WORKING GROUP, March 1992 (1992-03-01), XP015007092
5 *See also references of EP1654614A4
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