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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0089758 (2016-04-04) |
| 등록번호 | US-9727303 (2017-08-08) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 0 인용 특허 : 528 |
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 distribut
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.
1. A method comprising: receiving via a user interface of a computing device, a first input to stop playback of audio content from an audio information source by a synchrony group of a first zone comprising a first playback device and at least a second zone comprising a second playback device;transm
1. A method comprising: receiving via a user interface of a computing device, a first input to stop playback of audio content from an audio information source by a synchrony group of a first zone comprising a first playback device and at least a second zone comprising a second playback device;transmitting from the computing device, via a network interface of the computing device, to the first playback device, a command to stop playback of the audio content by the synchrony group;after transmitting the command to the first playback device, displaying on the user interface, one or more graphical representations indicating that playback of the audio content by the synchrony group is stopped;after displaying the one or more graphical representations, receiving via the user interface, a second input to cause the synchrony group to resume playback of the audio content; andin response to receiving the second input, configuring the first playback device to at least (i) playback at least a portion of the audio content from the audio information source in synchrony with at least the second playback device, (ii) transmit packets comprising at least a portion of the audio content and playback timing information for at least a portion of the audio content to at least the second playback device, and (iii) transmit packets comprising clock time information of the first playback device to at least the second playback device, wherein the first playback device and the second playback device remain independently clocked while the first playback device plays back at least a portion of the audio content from the audio information source in synchrony with at least the second playback device. 2. The method of claim 1, wherein the one or more graphical representations are first graphical representations and wherein the method further comprises: prior to receiving the first input, displaying on the user interface, second graphical representations indicating (i) the first and second zones and (ii) the synchrony group is playing the audio content from the audio information source. 3. The method of claim 1, further comprising: prior to receiving the first input, receiving at the user interface, a third input to group at least the first zone and the second zone into the synchrony group, wherein the third input identifies at least the first zone and the second zone. 4. The method of claim 1, wherein the user interface is a first user interface, wherein the one or more graphical representations are first graphical representations, wherein the audio content is first audio content, and wherein the method further comprises: displaying on a second user interface, second graphical representations of at least (i) the synchrony group, (ii) the first zone, and (iii) the second zone;after displaying the second graphical representations, receiving via the second user interface, a third input to play second audio content in the second zone; andin response to the third input, configuring (i) the second playback device to leave the synchrony group and (ii) the first playback device to stop sending to the second playback device (a) the packets comprising at least a portion of the first audio content and playback timing information for at least a portion of the first audio content and (b) the packets comprising clock time information of the first playback device. 5. A computing device comprising: at least one processor;a user interface;a network interface; andmemory having stored thereon instructions executable by the computing device to perform functions comprising: receiving via the user interface, a first input to stop playback of audio content from an audio information source by a synchrony group of a first zone comprising a first playback device and at least a second zone comprising a second playback device;transmitting via the network interface to the first playback device, a command to stop playback of the audio content by the synchrony group;after transmitting the command to the first playback device, displaying on the user interface, one or more graphical representations indicating that playback of the audio content by the synchrony group is stopped;after displaying the one or more graphical representations, receiving via the user interface, a second input to cause the synchrony group to resume playback of the audio content; andin response to receiving the second input, configuring the first playback device to at least (i) playback at least a portion of the audio content from the audio information source in synchrony with at least the second playback device, (ii) transmit packets comprising at least a portion of the audio content and playback timing information for at least a portion of the audio content to at least the second playback device, and (iii) transmit packets comprising clock time information of the first playback device to at least the second playback device, wherein the first playback device and the second playback device remain independently clocked while the first playback device plays back at least a portion of the audio content from the audio information source in synchrony with at least the second playback device. 6. The computing device of claim 5, wherein the one or more graphical representations are first graphical representations and wherein the functions further comprise: prior to receiving the first input, displaying on the user interface, second graphical representations indicating (i) the first and second zones and (ii) the synchrony group is playing the audio content from the audio information source. 7. The computing device of claim 5, wherein the one or more graphical representations are first graphical representations and wherein the functions further comprise: after configuring the first playback device, displaying on the user interface, second graphical representations indicating the synchrony group is playing the audio content from the audio information source. 8. The computing device of claim 7, wherein the functions further comprise: before displaying the second graphical representations, receiving via the network interface, data indicating the synchrony group is playing the audio content from the audio information source. 9. The computing device of claim 8, wherein the functions further comprise: prior to receiving the data, receiving at the user interface, a third input to group at least the first zone and the second zone into the synchrony group, wherein the third input identifies at least the first zone and the second zone. 10. The computing device of claim 9, wherein the functions further comprise: in response to the third input, configuring the first playback device as a master playback device of the synchrony group, and at least the second playback device as a slave playback device of the synchrony group. 11. The computing device of claim 5, wherein the user interface is a first user interface, wherein the audio content is a first audio content, and wherein the functions further comprise: receiving via a second user interface, a third input to play second audio content by the synchrony group; andin response to the third input, configuring the synchrony group to play the second audio content. 12. The computing device of claim 5, wherein the user interface is a first user interface, wherein the one or more graphical representations are first graphical representations, wherein the audio content is first audio content, and wherein the functions further comprise: displaying on a second user interface, second graphical representations of at least (i) the synchrony group, (ii) the first zone, and (iii) the second zone;after displaying the second graphical representations, receiving via the second user interface, a third input to play second audio content in the second zone; andin response to the third input, configuring (i) the second playback device to leave the synchrony group and (ii) the first playback device to stop sending to the second playback device (a) the packets comprising at least a portion of the first audio content and playback timing information for at least a portion of the first audio content and (b) the packets comprising clock time information of the first playback device. 13. The computing device of claim 5, wherein the functions further comprise: facilitating, via a plurality of remote user interfaces, control of playback of the audio content by at least one zone in the synchrony group. 14. A non-transitory computer-readable medium having stored thereon instructions executable by a computing device to perform functions comprising: receiving via a user interface of the computing device, a first input to stop playback of audio content from an audio information source by a synchrony group of a first zone comprising a first playback device and at least a second zone comprising a second playback device;transmitting by the computing device, via a network interface of the computing device, to the first playback device, a command to stop playback of the audio content by the synchrony group;after transmitting the command to the first playback device, displaying on the user interface, one or more graphical representations indicating that playback of the audio content by the synchrony group is stopped;after displaying the one or more graphical representations, receiving via the user interface, a second input to cause the synchrony group to resume playback of the audio content; andin response to receiving the second input, configuring the first playback device to at least (i) playback at least a portion of the audio content from the audio information source in synchrony with at least the second playback device, (ii) transmit packets comprising at least a portion of the audio content and playback timing information for at least a portion of the audio content to at least the second playback device, and (iii) transmit packets comprising clock time information of the first playback device to at least the second playback device, wherein the first playback device and the second playback device remain independently clocked while the first playback device plays back at least a portion of the audio content from the audio information source in synchrony with at least the second playback device. 15. The non-transitory computer-readable medium of claim 14, wherein the one or more graphical representations are first graphical representations and wherein the functions further comprise: prior to receiving the first input, displaying on the user interface, second graphical representations indicating (i) the first and second zones and (ii) the synchrony group is playing the audio content from the audio information source. 16. The non-transitory computer-readable medium of claim 14, wherein the one or more graphical representations are first graphical representations and wherein the functions further comprise: after configuring the first playback device, displaying on the user interface, second graphical representations indicating the synchrony group is playing the audio content from the audio information source. 17. The non-transitory computer-readable medium of claim 14, wherein the functions further comprise: prior to receiving the first input, receiving at the user interface, a third input to group at least the first zone and the second zone into the synchrony group, wherein the third input identifies at least the first zone and the second zone. 18. The non-transitory computer-readable medium of claim 14, wherein the user interface is a first user interface, wherein the audio content is a first audio content, and wherein the functions further comprise: receiving via a second user interface, a third input to play second audio content by the synchrony group; andin response to the third input, configuring the synchrony group to play the second audio content. 19. The non-transitory computer-readable medium of claim 14, wherein the user interface is a first user interface, wherein the one or more graphical representations are first graphical representations, wherein the audio content is first audio content, and wherein the functions further comprise: displaying on a second user interface, second graphical representations of at least (i) the synchrony group, (ii) the first zone, and (iii) the second zone;after displaying the second graphical representations, receiving via the second user interface, a third input to play second audio content in the second zone; andin response to the third input, configuring (i) the second playback device to leave the synchrony group and (ii) the first playback device to stop sending to the second playback device (a) the packets comprising at least a portion of the first audio content and playback timing information for at least a portion of the first audio content and (b) the packets comprising clock time information of the first playback device. 20. The non-transitory computer-readable medium of claim 14, wherein the functions further comprise: facilitating, via a plurality of remote user interfaces, control of playback of the audio content by at least one zone in the synchrony group.
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