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Network availability status detection device and methodNetwork availability status detection device and method description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080294742, Network availability status detection device and method. Brief Patent Description - Full Patent Description - Patent Application Claims
This application is a divisional of U.S. patent application Ser. No. 11/102,377, filed Apr. 8, 2005 and now is an issued U.S. Pat. No. 7,411,911, which is herein incorporated by references for all purposes. BACKGROUND1. Technical Field This invention relates generally to network access, and more particularly to the detection of network availability in a hierarchical network. 2. Background When using a hierarchical network such as the Internet for communications, interruptions in communications due to network unavailability are common. Typically, a local area network (LAN) at a lower level of the hierarchy is connected to a wide area network (WAN) at a higher level of the hierarchy through a gateway or other network device that accesses both networks. Network congestion or possibly a temporary loss of connection on the WAN may require network devices on the LAN to momentarily suspend their access in terms of deferring the sending or receiving of data. In an application of transferring text or data files, the delays that are incurred due to deferral are not usually significant since text and data files do not need to be delivered in real-time, meaning there is generally no time boundary for completion of the transfer. Therefore, the typically short delays incurred do not generally inhibit the successful communication of information. Even in the case where a LAN connection to the Internet is made wirelessly, if the application is text or data transfer, an interruption causes the transfer to pause until the network is available in order to continue sending or receiving the necessary information. However, when the application requires a lower latency in message transfer as typified by streaming audio and/or video, teleconferencing, and voice over Internet Protocol (VoIP), delays due to network unavailability are not desirable. For example, although a traditional wireless network device can usually give some indication of the status of the direct wireless connection, a traditional wireless network device is not aware of the availability status of an indirectly connected network, such as the WAN, which may affect the latency of communications with the wireless device and cause disruption in some applications. Accordingly, there is a need in the art for a network device to determine the availability status of a network other than the network to which the network device is directly connected. Additionally, there is a need in the art for a network device to determine the availability status of a network before directly connecting to the network device. BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 shows a portion of an exemplary hierarchical network in accordance with an embodiment of the invention. FIG. 2 shows a portion of another exemplary hierarchical network in accordance with an embodiment of the invention. FIG. 3 shows a portion of a hierarchical network including a status detecting system in accordance with an embodiment of the invention. FIG. 4 shows a network availability flow illustrating a method of using a status detecting system in accordance with an embodiment of the invention. FIG. 5 shows a portion of a hierarchical network including a status detecting system in accordance with an embodiment of the invention. FIG. 6 shows a network availability flow illustrating a method of using a status detecting system in accordance with an embodiment of the invention. FIG. 7 shows a portion of a hierarchical network including a status detecting system in accordance with an embodiment of the invention. FIG. 8 shows a network availability flow illustrating a method of using a status detecting system in accordance with an embodiment of the invention. Continue reading about Network availability status detection device and method... Full patent description for Network availability status detection device and method Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Network availability status detection device and method patent application. Patent Applications in related categories: 20090282107 - Adaptive electronic introductions - A method for providing electronic introductions includes providing, with an electronic communication, an electronic introduction that gives additional information regarding a party to the electronic communication that is in addition to the electronic identification of that party. 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