Other

Qi Benjamin Hu

Hisato Shima

Sho Kou

Chenchu Lakshmi Chilamakuri

Ratna Vemuri

Systems and methods consistent with the present invention include a peripheral device connected to a telecommunications network via a telephone line and connected to a multimedia network via a high-speed serial interface. The peripheral device establishes and maintains multiple logical connections between devices in the multimedia network and devices in the telecommunications network.

Apparatus and method for interfacing between multimedia network and telecommunications network

A controlling application generates objects and handles to represent units within a network. To generate an object representing a device, subobjects for each subunit within the device are assembled into the object representing the device. When the unit reports its self-identifying information, the controlling application determines which subunits are included within the unit. Subobjects representing these subunits are copied from a subobject library and assembled into the object representing this device. Preferably, a handle includes a pointer value pointing to an address of the corresponding object for the device.

Method of and apparatus for dynamically binding subobjects into objects to represent functions and characteristics of a device within an IEEE 1394 serial bus network

A controlling application utilizes existing handle objects, as appropriate, to reconfigure objects to dynamically enumerate and represent devices coupled to a serial bus network after a bus reset event. Preferably, the serial bus network is an IEEE 1394-1995 serial bus network. During a self-identifying process, after the bus reset, information about the characteristics of the devices within the network is received. From this self-identifying information objects representing the devices are generated. Existing handle objects from a previous bus configuration are then compared to these objects. If a handle matches an object, then a pointer value within the handle is changed to point to an address of the object. Preferably, a handle includes a 64 bit unique identifier value that is compared to the objects to find a match. For devices removed from the network, the handle object is preferably never discarded but is made invalid. For devices added to the network, existing invalid handle objects are preferably re-validated and attached to objects representing devices. If there are no further existing handles and a device does not yet have an attached handle, then a handle is generated and attached to the device. A handle is only generated if there are more devices within the network than there are existing handles. Preferably, a handle includes a pointer value pointing to an address of the corresponding object for the device.

Method of and apparatus for dynamically enumerating objects representing devices within an IEEE 1394 serial bus networking

A middle interface layer is positioned to provide a unified interface between applications resident within a node and the transaction layer of the node. The middle interface layer hides the details of the transaction layer from the applications. Unified response and request packets are used for communication between the applications and the middle interface layer. The middle interface layer is responsible for communicating with the transaction layer and generating and receiving all of the appropriate communications necessary for completion of transactions involving the applications.

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Santa Clara, CA, United States of America

Qi Benjamin Hu