Method and system for synchronization of content rendering
DC CAFC
First Claim
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1. A method for synchronizing a rendering of a content provided by a source at one or more devices which are nodes of a network, the content having a rendering time, the method comprising:
- designating one of the one or more devices a master device, the master device having a master device time and a master rendering time;
designating remaining devices among one of the one or more devices as at least one slave device, the at least one slave device having a slave device time and a slave rendering time;
receiving the content for rendering by the master and at least one slave device;
sending from the master device to the at least one slave device an indication of when the master device renders content corresponding to the master rendering time;
determining a master device time domain, a slave device time domain, and a source time domain;
determining whether a time domain differential exists between the master rendering time, the slave rendering time; and
adjusting, based on the received indication, the rendering of the content at the at least one slave device within the slave device time domain and in proportion to the time domain differential when present to account for variation between when the master device and the at least one slave device to render content that should be rendered at the same time.
6 Assignments
Litigations
1 Petition
Accused Products
Abstract
A method and system for synchronizing the rendering of content at various rendering devices. Each rendering device has a device time and a rendering time. The synchronization system designates one of the rendering devices as a master rendering device and designates all other rendering devices as slave rendering devices. Each slave rendering device adjusts the rendering of its content to keep it in synchronization with the rendering of the content at the master rendering device. The master rendering device sends a message with its rendering time and corresponding device time to the slave rendering devices. Each slave rendering device, upon receiving the message from the master rendering device, determines whether it is synchronized with the master rendering time. If not, the slave rendering device adjusts the rendering of its content to compensate for the difference between the master rendering time and the slave rendering time.
820 Citations
27 Claims
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1. A method for synchronizing a rendering of a content provided by a source at one or more devices which are nodes of a network, the content having a rendering time, the method comprising:
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designating one of the one or more devices a master device, the master device having a master device time and a master rendering time; designating remaining devices among one of the one or more devices as at least one slave device, the at least one slave device having a slave device time and a slave rendering time; receiving the content for rendering by the master and at least one slave device; sending from the master device to the at least one slave device an indication of when the master device renders content corresponding to the master rendering time; determining a master device time domain, a slave device time domain, and a source time domain; determining whether a time domain differential exists between the master rendering time, the slave rendering time; and adjusting, based on the received indication, the rendering of the content at the at least one slave device within the slave device time domain and in proportion to the time domain differential when present to account for variation between when the master device and the at least one slave device to render content that should be rendered at the same time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for synchronizing rendering of content at devices which are nodes of network, each device having a device time and a rendering time, the device time of a device being in a time domain of the device, the method comprising:
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designating one of the devices as a master device having a master rendering time and the one or more slave devices having a slave rendering time; sending to each device content to be rendered at that device synchronized with the content sent to the other devices; sending from the master device to the one or more slave devices a master device time corresponding to the master rendering time of the master device; and
upon receiving the sent master device time at the one or more slave devices,exchanging time domain information between the master and one or more slave devices; determining at least one time domain differential between the master rendering time and the slave rendering time between the master device and the one or more slave devices; adjusting the rendering of the content at the one or more slave devices to account for a difference in the slave rendering time and the master rendering time calculated based on the master device time adjusted for a difference in time domains of the one or more slave devices and the master device. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for synchronizing rendering of content at devices which are nodes of a network, each device having a device time and a rendering time, the device time of a device being in a time domain of the device, the method comprising:
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designating one of the devices as a master device having a master rendering time and the one or more slave devices having a slave rendering time; and
for each slave device,exchanging time domain information between the master and one or more slave devices; calculating a time domain difference between the master rendering time of the master device and the slave rendering time of the slave device based on a master device time adjusted for a difference in time domains of the slave device and the master device; and rendering content at the slave device to account for the calculated time domain difference. - View Dependent Claims (24, 25, 26, 27)
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Specification
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Litigation Data
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Current AssigneeImplicit, LLC (Edward Balassanian)
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Original AssigneeImplicit Networks, Inc. (Edward Balassanian)
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InventorsBalassanian, Edward, Bradley, Scott W.
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Primary Examiner(s)Levitan, Dmitry
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Application NumberUS10/322,335Publication NumberTime in Patent Office2,016 DaysField of Search370/431, 370/432, 370/464, 370/498, 370/503, 370507-521, 709/219, 709231-237, 709/248US Class Current370/503CPC Class CodesG06F 16/4393 Multimedia presentations, e...H04L 41/04 Network management architec...H04N 5/765 Interface circuits between ...H04N 5/775 between a recording apparat...
