摘要:
Within a domain of a master device, devices that share a power line as a communications medium monitor signal detection windows to sense network status. The devices transmit sensed network status to the master device. The master device allocates channel resources based on the network statuses communicated by the devices within the domain.
摘要:
Communication systems that use different physical layer (PHY) protocols can coexist on a communication medium (e.g., a powerline medium) by using an Inter-PHY Protocol (IPP). The different protocols may use different signal modulation schemes but still may have some features in common. The IPP includes a resource sharing mechanism that regulates access to the communication medium by devices functioning as communication devices (for example, devices communicating over a power line). A subset of devices that communicate among each other form a logical network that shares the medium with other logical networks that use either the same PHY protocol or a different PHY protocol.
摘要:
A method is described for communicating among multiple devices over a shared communication medium. The method includes, in a schedule among multiple subsets of the devices that includes at least one respective time slot for each subset, transmitting from at least one of the devices in a given subset a presence signal associated with the given subset within a time slot for the given subset. A presence signal associated with a given subset is configured to indicate the presence of at least one device in the given subset. The method also includes communicating among devices in a given subset based on presence signals detected from one or more devices in at least one different subset.
摘要:
The trend toward moving to digital content is progressing and expanding every day. With that trend comes the availability of a multitude of content from many content sources. There is a need for this content to be distributed to multiple destinations, and there is a further need to have the content synchronized among those multiple destinations. Embodiments described herein detail a method of synchronizing this content in an asynchronous environment, such as a powerline network, including using a PHY timing flag that is used to compensate for PHY-to-channel-to-PHY delays.
摘要:
In accordance with an embodiment, a method of operating a node coupled to a power network and a communications link includes receiving a status from a further node coupled to the power network via the communications link, and adjusting a power consumption of a device coupled to the node and powered by the power network based on the status message and based on a first rule set.
摘要:
The invention presents a novel method to channel estimation in OFDM systems. The embodiment of this invention is a block of new logic and modifications performed to other components of the system, added to any existing OFDM receiver, which utilizes information available from other blocks as found in the receiver. This logic would improve the units' error rate because of the improved channel quality estimations it makes available. This improvement is made possible because both channel noise data and channel signal data are used in the estimation process. This data goes through a learning process over time and multiple data blocks for further improvements in the quality of the estimate. This improvement is possible without any direct communications with other remote units, but it could be used in a multi-node environment to improve the performance of the system as the whole.
摘要:
An integrated network adapter is operable to establish a network interface with a plurality of media types, including at least a power line network and a telephone line network, based on pre-configuration, upon initialization and dynamically during operation. The adapter further is operable to establish network interfaces simultaneously or separately with a plurality of media types and provide that a communications event can occur simultaneously or separately over a plurality of media types.
摘要:
An integrated power line communications (“PLC”) interface is coupled to a power line communications network and can simultaneously process a plurality of classes of communications data for automatically and dynamically establishing class-specific communications interfaces with communications network appliances or communications device coupled to the PLC network.
摘要:
The trend toward moving to digital content is progressing and expanding every day. With that trend comes the availability of a multitude of content from content sources through, for example, the public Internet. A method and system for content distribution are provided that allow content providers to customize the content that is (i) distributed to content rendering devices and/or (ii) suggested for download or purchase by users of the rendering devices, based on user responses and interactions resultant from the content. This interaction allows for the most likely and desired content to be available to the user for play or purchase.
摘要:
A system and method of delivering synchronized audio and audio/video signals in the form of analog signals and streamed data over networks such a hybrid power line communications network is described. Signal magnitude matching by monitoring directly feed audio outputs is also provided.