Microsoft Technology Licensing, LLC

Webtv Networks, Inc.

Webtv Newtorks, Inc.

Soemin Tjong

Larry Alan Morris

Glenn Davis

Jun Liu

John M Parchem

Daniel J Shoff

Sureshkumar Natarajan

Kristofer Noel Iverson

Jorge I Raastroem

Jimmy Yu Wu

Vladimir Rovinsky

A device endpoint is accessed through an off-premise communications network relative to the device endpoint. The device endpoint is registered to a virtual device object in data storage of a device service, the device service and the device endpoint communicating across the off-premise communications network, the virtual device object storing a secure device endpoint identifier of the device endpoint. A virtual device identifier associated with the secure device endpoint identifier of the device endpoint is stored in the virtual device object. A request to access the device endpoint using the virtual device identifier is received. The secure device endpoint identifier associated with the virtual device identifier in the virtual device object is read. The device endpoint is notified of a pending job associated with the secure device endpoint identifier. The pending job is communicated to the device endpoint identified by the secure device endpoint identifier.

Secure device endpoint assignment and job communication

Secure device endpoint assignment

A data communication system is configured to communicatively link a host device and a client device with a point-to-point data communication link, where the point-to-point data communication link is configured with multipoint network data communication components designed for data communication over a distributed network. A data communication interface at the host device is communicatively linked with a data communication interface driver via the point-to-point data communication link between the host device and the client device. The data communication interface driver communicates with a virtual driver component for the client device via a virtual network at the client device.

Point-to-point data communication implemented with multipoint network data communication components

Automatic compilation of address filter information permits a cable modem to route incoming data packets to destination devices. A cable modem uses address filter information, such as for example, a list of addresses of communication devices that have previously registered with the cable modem, to identify incoming data packets that are addressed to communication devices associated with the cable modem. Incoming data packets with addresses that are not in the address filter information are filtered out. However, the cable modem may have insufficient filter information, when, for instance, a new communication device is associated with the cable modem. In order to automatically register communication devices associated with the cable modem, the cable modem inspects the source addresses of outgoing data packets. If the source address is not included in the address filter information, the source address is added.

Automatic compiling of address filter information

Methods and apparatuses are provided that allow kernel mode data traffic and user mode data traffic to share a common network communication port. One apparatus includes user mode logic, kernel mode logic, and kernel mode to user mode interface logic. The interface logic is configured to receive data packets and selectively distribute the data packet to either the user mode or kernel mode logic. The interface logic includes 'virtual' bridge logic and 'virtual' miniport logic. The bridge logic determines if a received data packet is a user mode or kernel mode data packet. If it is a kernel mode data packet, then the bridge logic provides the data packet to the kernel mode logic. If it is a user mode data packet, then the bridge logic stores the data packet in memory for subsequent use by the user mode logic. The bridge logic also receives outgoing kernel mode data packets from the kernel mode logic and provides them to a network communication port, and retrieves outgoing user mode data packets from memory and provides them to the same network communication port. The miniport logic provides an interface between the memory accessed by the bridge logic and user mode logic. The miniport logic accepts outgoing user mode data packets and stores them in the memory for subsequent access by the bridge logic, and retrieves incoming user mode data packets stored in memory by the bridge logic.

Network interface sharing methods and apparatuses that support kernel mode data traffic and user mode data traffic

Networking interface sharing methods and apparatuses that support kernel mode data traffic and user mode data traffic

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Redmond, WA, United States of America

Soemin Tjong