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1561 results about "User state" patented technology

The User State Migration Tool (USMT) is a command line utility program developed by Microsoft that allows users comfortable with scripting languages to transfer files and settings between Windows PCs. This task is also performed by Windows Easy Transfer, which was designed for general users but then discontinued with the release of Windows 10, where they instead partnered with Laplink.

System and method for controlled access to shared-medium public and semi-public internet protocol (IP) networks

A system and method prevent unauthorized users and devices, in a dynamic user / device environment, from obtaining access to shared-medium public and semi-public IP networks. A network includes a layered communication system and routers / switches for coupling users and devices to a Dynamic Host Control Protocol (DHCP) server and an authentication server. Databases support the servers. The network incorporates Address Resolution Protocol (ARP). Authorized users and devices register for service by providing the DHCP with user identification for log-in, passwords, MAC addresses, etc. When users connect to the network access point, a DHCP exchange is initiated to obtain a valid IP address and other associated parameters. The DHCP client initiates a MAC broadcast for IP addresses which contain in the request the end user's device MAC address. The associated router switch will pick up and forward to a DHCP server the end user's device request. The DHCP server will process the end user's request and extract the end user's device MAC address. With the end user's MAC address, the DHCP server accesses its device and / or user information in the database. If the MAC address is not registered, the DHCP server refuses to handle the request and logs the attempt, potentially alerting network operators of a security breach. If the MAC address is registered, a DHCP server selects an appropriate IP address and associated parameters to be returned to the requesting end user and connects via programming or command interface to the router switch that is forwarding the DHCP request on behalf of the end user device. The server adds an ARP IP to the MAC address table entry with the selected IP address and end user's MAC address. End user device authentication and IP lease are marked as provisional. A timer is started for a suggested duration. Optionally, the DHCP dynamically sets up filter rules in the router switch limiting access to a subset of IP addresses such as the address of a log-in server. Initial DHCP processing is completed and an IP address is assigned to the requesting end user's device by DHCP. When the timer expires, if the DHCP server finds the authenticating user state is provisional, it will revoke the IP lease, invalidate the corresponding ARP to MAC table entry in the associated router switch, and reset any IP-permissive filtering for that device. If the user is in the full authenticated state, it will simply remove the restrictive filtering.
Owner:IBM CORP

Method and apparatus for controlling communication channels using contention and polling schemes

A medium access controller for a multi-user network that assigns or changes the operating protocol of multiple upstream channels according to user loading, user status, and / or type of payload data transfers requested by the user or detected by the controller. One group of upstream channels utilizes a contention-only protocol for non-responding or off-line users, a second group utilizes a limited type polling protocol for users requiring only brief transfers of payload data, and a third group utilizes an exhaustive polling protocol user requiring large amounts of payload data transfers. Limited type polling provides low latency for quick response to accommodate multiple users, while exhaustive polling provides large data throughput at the expense of latency. Additional levels of limited or exhaustive polling may be employed to accommodate a larger variety of users needs. In addition, the channels themselves may be dynamically reclassified between and among contention and first and / or other level polling modes based on user loading and / or the nature and character of on-going data transfers in order to achieve maximum utilization of shared resources. After initiating a data transmission, the controller may also dynamically assign channels to a user based on detected changes in actual data transmissions. Thus, rules based on user activity level may be implemented to determine when a user is switched between channel groups. Essentially, the controller may effect switching of the users' upstream channels dynamically and intelligently on a packet-by-packet basis. Users may include modems and / or other terminal devices in a client-server or other data communication network.
Owner:HYBRID NETWORKS
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