Resynchronization of playback devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 2017
Issued Date -
N/A
app pub date -
May 15, 2013
filing date -
Jul 28, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
First Claim
Other Claims data not available
Family
International Classification(s)
- H04L:TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAP....
- H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....
- G05B:CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTION....
- G06F:ELECTRIC DIGITAL DATA PROCESSING
- G11B:INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BET....
- H04W:WIRELESS COMMUNICATION NETWORKS
- H03G:CONTROL OF AMPLIFICATION
- H04H:BROADCAST COMMUNICATION
- H04J:MULTIPLEX COMMUNICATION
Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- H04L Class
- 11.47 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 3, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 3, 2029 |
