Abstract: A thermal print head assembly comprising a thin ceramic substrate, a thermal insulating glaze layer, an electrically conducive layer, an electrically resistive element layer, and a glass over-coating protective layer, plus an energizing schema that eliminates the need for a heat-sink is disclosed. A method of making this thermal print head assembly is also disclosed.

Abstract: A time and attendance device having an integrated USB hub and microcontroller is provided. An automated voice feature is provided that is controlled in response to user parameters. Also provided are a single target area having attention-getting illumination, proximity reader positioning, and transaction status indicators.

Abstract: A discrete or covert surveillance-communication device and system is disclosed that includes at least one miniature video surveillance camera and alerting-communication assemblies hidden in objects resembling office, commercial or household devices, such as a wall clock.

Abstract: A watchman's tour recording system includes a portable housing containing a data reader for reading and recording data from tour stations and a printer for printing out recorded station data and entry time in alphanumeric form. The printer is located in a locked compartment and is accessible by supervisory personnel for periodic tour entry monitoring. Station keys carry coded identification as a linear array of apertures filled with alternative pellet materials which are transmissive or non-transmissive to infrared light but are visibly indistinguishable. Strobe holes are positioned in a parallel linear array for synchronizing data reading. During assembly, the pellets are mutually distinguishable by split and continuous rings which serve as energy directors during ultrasonic welding of the pellets into the key, and which are hidden from view in the assembled product.

Abstract: A synchronizer comprised of a combination of integrated circuits including logic gates, latches and counters designed to interface with a master time controller to provide a means of linking the accuracy of the time controller to a time reference provided by the WWV signal broadcast by the National Bureau of Standards.