Service framework for computing devices
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United States of America Patent
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Aug 5, 2003
Grant Date -
N/A
app pub date -
Sep 23, 1999
filing date -
Mar 31, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A method, apparatus and computer product that enables one or more computing devices to discover and use services over a network, which may be ad-hoc when the computing device is mobile. Service discovery is based on periodic multicasting of exported service descriptions to nearby devices over the (ad-hoc) network. Middleware enables a device to discover, advertise and use services. This enables software clients on the same device to share a service implementation (in the case of a local service) or to share an implementation proxy (in the case of a remote service). Each device being aware of the services (and service locations) that are currently available generally reduces the response time associated with accessing available services. While service descriptors are multicast and discovered, the service software is only downloaded on the device when the service is used. This enables economical resource management that is particularly useful for mobile devices.
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