Patent ID: 7054696
Filing Date: 2006-05-30
Classification: B23D,B25B,B25F,H04B

Abstract:
1. A system for communicating information between a power tool and an independent subsystem using a power cord of the tool as a signal conducting medium, the system comprising: an independent interface subsystem adapted to be coupled to said power cord for providing an input signal to said power tool, via said power cord, that a communications mode is to be initiated between said power tool and said interface subsystem; a controller disposed within said tool operable to recognize said input signal and to enter a communications mode of operation; an electronic module disposed within said tool for storing operational information relating to said power tool, said electronic module being in communication with said controller; wherein said controller obtains said operational information from said electronic module and causes periodic pulses, representative of said operational information, to be transmitted over said power cord in synchronization with said input signal; and wherein said interface system decodes said periodic pulses to obtain said operational information.