09727304 cites 954 patents.

A system is described for maintaining synchrony of operations among a plurality of devices that have independent clocking arrangements. The system includes a task distribution device that distributes tasks to a synchrony group comprising a plurality of devices that are to perform the tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to the members of the synchrony group over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which the members of the synchrony group are to execute the task. Each member of the synchrony group periodically obtains from the task distribution device an indication of the current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines therefrom a time at which, according to its respective clock, the time stamp indicates that it is to execute the task.

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Application Number
Publication Number
9727304 (B2)
Application Date
May 16, 2016
Publication Date
August 8, 2017
Nicholas A J Millington
Santa Barbara
McDonnell Boehnen Hulbert & Berghoff
H04W 84/20
H04W 56/00
H04L 12/28
G06F 1/12
H04N 21/436
H04N 21/43
H04N 9/79
H04N 5/04
G11B 20/10
G05B 15/02
H04H 20/26
H04H 20/10
G06F 1/00
H03G 3/00
G06F 3/0482
G06F 17/30
H04R 3/12
G06F 3/0484
H04L 29/08
G06F 3/048
H04L 29/06
H03G 3/20
G06F 17/00
H04R 27/00
H04J 3/06
G06F 3/16
G06F 15/16
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