Abstract: A system and method for presenting chat group sessions at wireless mobile terminals is disclosed. The system includes plural wireless mobile terminals, each having a display screen. Each mobile terminal is capable of displaying a chat conversation that is updated in near real-time so that messages in the conversation progressively scroll on the screen. In addition, at least one of the mobile terminals is configured to present a text edit area on a portion of it screen while showing the chat conversation on another portion of the screen. A text editor resident in the mobile terminal permits a user to compose a message in the text edit area while simultaneously viewing the chat conversation as it progresses. The message can be a response to the conversation currently being displayed.

Abstract: A system and method for providing chat group services to wireless mobile terminals is disclosed. The chat forum permits integrated voice and text messaging. The system includes plural mobile terminals, each being capable of running a chat client application. A server complex is connected to one or more wireless carrier networks by way of a packet-based network, such as the Internet. The server complex includes server applications and components for supporting the chat group services and communicating with the chat clients on the mobile terminals. The system also includes features that permit the integration of legacy mobile terminals, communication with machine interfaces using a chat metaphor, and robustness and reliability of operation across various wireless operators.

Abstract: In a wireless communication system, local detection of an interrupt indicator during a voice communication between a user of a subscriber unit and another person is provided. Responsive to the interrupt indicator, a portion of a speech recognition element is activated to begin processing voice-based commands. The speech recognition element can be implemented at least in part within an infrastructure, such as in a client-server speech recognition arrangement. The interrupt indicator may be provided using an input device forming a part of the subscriber unit, or through the use of a local speech recognizer within the subscriber unit. By locally detecting interrupt indicators at the subscriber unit, the present invention more readily enables the use of electronic assistants and similar services in wireless communication environments.

Abstract: A start of an input speech signal is detected during presentation of an output audio signal and an input start time, relative to the output audio signal, is determined. The input start time is then provided for use in responding to the input speech signal. In another embodiment, the output audio signal has a corresponding identification. When the input speech signal is detected during presentation of the output audio signal, the identification of the output audio signal is provided for use in responding to the input speech signal. Information signals comprising data and/or control signals are provided in response to at least the contextual information provided, i.e., the input start time and/or the identification of the output audio signal. In this manner, the present invention accurately establishes a context of an input speech signal relative to an output audio signal regardless of the delay characteristics of the underlying communication system.

Abstract: At an audio source, pause information is added to audio data, the combination of which is subsequently packetized. The resulting packets are transmitted to an audio destination via a network in which different packets may be subjected to varying levels of delay. At the audio destination, the pause information may be used to insert pauses at appropriate times to accommodate the occurrence of delays in packet delivery. In one embodiment, pauses are inserted based on a hierarchy of pause types. During pauses, audio filler information may be injected. In this manner, the effects of variable network delays upon reconstructed audio may be mitigated.