American Power Conversion Corporation

Schneider Electric It Corporation

Matthew Fletcher Bush

James S Spitaels

Daniel C Cohen

Vishwas Mohaniraj Deokar

Mark H Germagian

David A Colucci

C Michael Hoff

Jane E Morgan

Robert Joseph Backofen

James M Simonelli

Jia Wu

Kenneth James Glaeser

One aspect relates to a communication protocol for communicating between one or more entities, such as devices, hosts or any other system capable of communicating over a network. A protocol is provided that allows communication between entities without a priori knowledge of the communication protocol. In such a protocol, for example, information describing a data structure of the communication protocol is transferred between communicating entities. Further, an authentication protocol is provided for providing bidirectional authentication between communicating entities. In one specific example, the entities include a master device and a slave device coupled by a serial link. In another specific example, the communication protocol may be used for performing unbalanced transmission between communicating entities.

Communication protocol

A UPS includes an AC output, power factor control circuitry; and a DC bus coupled to the power factor control circuitry where the power factor control circuitry is configured to determine a difference in instantaneous power supplied to the AC output and to adjust a voltage of the DC bus based, at least partly, on the difference. In one embodiment, the UPS includes a single phase AC input. In another embodiment, the power factor control circuitry is configured to determine a cumulative difference in instantaneous power supplied to the AC output.

Systems for and methods of controlling operation of a UPS

The present invention is directed to a carrying case with an integrated power supply system for providing power to multiple electronic devices from a single power source. In addition to allowing quick access and storage of various electronic devices, the carrying case also allows the individual electronic devices to be easily connected to the power source and eliminates the need to carry multiple charging cords. In certain embodiments, the power supply system further includes an additional battery or other power source, which increases the runtime of connected electronic devices and reduces the need to carry additional individual batteries for the individual devices. With different connectors on the input to the power system, different AC or DC power sources may be utilized. Different connectors can also be used to provide power to different electronic devices.

Universal multiple device power adapter and carry case

Growing community of inventors

Tyngsboro, MA, United States of America

Matthew Fletcher Bush