Pitney Bowes Inc.

Peter A Pagliaro

Arno Muller

Sungwon R Moh

Easwaran C Nambudiri

Christopher D Smith

Sandra J Peterson

Easton F Bell

Eswaran C N Nambudiri

Rein Linask

Neeraj Sen

Moh Sungwon

A cryptographic device that will actively clear its memory even in the absence of external power when a security breach is detected is provided. The memory cell clusters of the cryptographic device are provided with an internal power source that provides sufficient energy for the memory cell clusters to perform a clearing operation. If the external power source for the memory is removed and a physical security breach is detected, the power from the internal power source will allow the memory cells to actively clear their contents, thereby rendering any attempt to obtain the contents of the memory cells fruitless.

Cryptographic device having active clearing of memory regardless of state of external power

Systems and methods for providing memory access circuitry in application specific integrated circuits, and in certain configurations for recovering data from non-volatile memory registers in a partially disabled application specific integrated circuit as provided. In one configuration, a virtual partial dual-port non-volatile memory is provided having a secondary partial read only port. In another configuration, a physical partial dual-port non-volatile memory is provided having a secondary partial read only port.

System and method for data recovery in a disabled integrated circuit

An apparatus and method for monitoring operation of an ink jet printhead. An ink jet printer is controlled to eject a periodic sequence of ink jet curtains through an illuminated gap. Variations in the intensity of the illumination caused by the ink jet curtains are detected to generate a signal representative of the opaqueness of the curtains. The signal is compared to a reference and if insufficient opaqueness is detected a poor print quality signal is generated. In one embodiment a feedback loop is established during a calibration mode to adjust the nominal level of illumination.

Optical ink drop detection apparatus and method for monitoring operation of an ink jet printhead

In postage metering apparatus having printing structure, structure for selecting respective postage values to be printed, structure for requesting printing selected postage values, structure for accounting for each postage value requested to be printed, and structure for controlling operation of the printing structure, an improvement for preventing printing a postage value without accounting therefor, the improvement comprising: the requested postage values including respective zero postage values; the controlling structure including structure for counting each request for printing a zero postage value; and the controlling structure including structure for preventing operation of the printing structure in response to the counting structure counting a predetermined number of the zero postage values.

Postage metering apparatus including means for guarding against printing

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Milford, CT, United States of America

Peter A Pagliaro