Abstract: A system may be provided that includes an adaptor connected to a dimmer and virtual three-way switch. The virtual three-way switch can be for a lamp plugged into wall-switched receptacle. The virtual three-way switch can control a lamp, appliance, or any device that is connected to the three-way switch by one or more of the connected switches, independent of the position of the unused switch. The virtual three-way switch may include a power input that receives power from a first power source, a sensor detecting a state change of a second power source, a user input sensor receiving a user command, and a power output delivering received power at a rate as function of the state change and of the user command. The virtual three-way switch can be connected to a user input device that is waiting to receive a command. The power output can deliver power to a connected device.

Abstract: A system may be provided that includes an adaptor connected to a dimmer and virtual three-way switch. The virtual three-way switch can be for a lamp plugged into wall-switched receptacle. The virtual three-way switch can control a lamp, appliance, or any device that is connected to the three-way switch by one or more of the connected switches, independent of the position of the unused switch. The virtual three-way switch may include a power input that receives power from a first power source, a sensor detecting a state change of a second power source, a user input sensor receiving a user command, and a power output delivering received power at a rate as function of the state change and of the user command. The virtual three-way switch can be connected to a user input device that is waiting to receive a command. The power output can deliver power to a connected device.

Abstract: A technique for creating interactions is provided. An interaction is defined in a data table. The data table may be stored in a word processing document. A type of interaction may be specified in the data table. The contents of the table are assessed to determine if any indicators are present, which would identify the type of interaction specified. The table contents may be stored into a string or an array. An interaction is created, based on the stored table contents. This allows developers of computer information, such as e-Learning, technical documents, or web pages to create interactions quickly and easily for their users.

Abstract: A computerized learning system implements an electronic learning environment over a communications network. A client system can access an interactive presentation from a server. A delivery system can be used to deliver the interactive presentation from the server viewable by a user for a smooth presentation.

Abstract: A computerized learning system implements an electronic learning environment over a communications network. A client system can access an interactive presentation from a server. A delivery system can be used to deliver the interactive presentation from the server viewable by a user for a smooth presentation.

Abstract: A computerized learning system implements an electronic learning environment over a communications network. A client system can access an interactive presentation from a server. A delivery system can be used to deliver the interactive presentation from the server viewable by a user for a smooth presentation.

Abstract: A data hashing arrangement particularly suitable for efficient database storage and fast retrieval of large numbers of character strings. A database address is determined for a character string by replacing individual characters with random numbers selected from a predefined table of random numbers. The table locations of the selected random numbers are uniquely defined by the characters. The selected numbers are combined by iteractive bit reordering and exclusive-OR operations to form a result, which is then used to derive the database address where the character string is stored.

Abstract: A call forwarding method that allows the called party to selectively forward individual alerting calls based, for example, on the calling party identity or on how busy the called party is at any given time, but without requiring the called party to first answer the calls. The called party can effect the transfer even though engaged in conversation with someone else.