Cisco Technology, Inc.

Stanley K Poon

David C Lee

Alex Yiu-Man Chan

Karempudi V Ramarao

Krishna Sankar

Ramakrishna Reddy Kandula

Wai-Yip Tung

In an embodiment, an XPath automaton with state look-ahead capability can efficiently determine whether XML documents, received in a stream in serialized form in a network element, match any of a set of XPath expressions. A token processor receives a structured electronic document in serialized format and identifies entities. A name recognition engine recognizes names of elements of the document and recognizes names of attributes of the elements. A finite state automaton comprises states and transitions representing structural relationships among elements and attributes of structured path expressions and state look-ahead logic that is configured to output a final state when an entity matches one or more of the structured path expressions. The automaton performs state transitions resulting in reaching a specified final state if a match to an expression occurs.

Processing structured electronic document streams using look-ahead automata

According to a particular embodiment of the present invention, a method for externally interrupting a telephony communication session includes establishing the telephony communication session with a remote user using a telephony interface. The method further includes loading a web page specifying one or more event handlers and media for presentation and presenting the media through a voice portion of the telephony communication session using the telephony interface. The method also includes handling input received by the telephony interface through the telephony communication session and receiving an interrupt at an interrupt handler, the interrupt specifying a session identifier for the telephony communication session. The method further includes identifying and communicating an event based on the interrupt and handling the event using a matching one of the event handlers of the web page.

Externally interrupting a communication session

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Milpitas, CA, United States of America

Stanley K Poon