International Business Machines Corporation

Hartmut Droege

Ludwig Fischer

Dieter Sonnentag

Anthony Thomas Sofia

Peter Bergersen Yocom

Joerg-Stephan Vogt

Frank Haverkamp

Thomas Fuchs

Reiner Rieke

Gunnar Von Boehn

Michael Ruettger

Markus Scheibel

Wolfgang Fischer

Roland Dieterle

Walter Hinz

Gerald Kreissig

Tayssir Scheib

Martin Witzel

Wolfgang Bollinger

Embodiments relate to providing a data stream interface for offloading the inflation/deflation processing of data to a stateless compression accelerator. An aspect includes transmitting a request to inflate or deflate a data stream to a compression accelerator. The request may include references to an input buffer for storing input data from the data stream, an output buffer for storing processed input data, and a state data control block for storing a stream state. The stream state is provided to the compression accelerator to continue processing the data stream responsive to the request being a subsequent request. The compression accelerator is instructed to store a current stream state in the state data control block responsive to the request being a non-final request. Accordingly, the current stream state is received from the compression accelerator responsive to the request being a non-final request. The processed input data is received from the compression accelerator.

Compression/decompression accelerator protocol for software/hardware integration

An apparatus for mounting a plurality of heat sinks onto a circuit board during testing while the circuit board is tested in a fixed manufacturing station. The apparatus has a polygonal shaped frame with a size that is limited to an area on the circuit board which contains a plurality of data processing elements to be cooled. At least four apertures are on the frame, wherein each of the apertures corresponds to a different one of the plurality of data processing elements to be cooled. A slot is positioned on the frame to receive oversized processing elements. At least four pillars extend from the frame and mount into mounting holes provided on the circuit board. The apertures on the frame support the heat sinks above the data processing elements to be cooled. No additional screws, adhesives, clips or other fixing mechanisms are required to secure the heat sinks.

Method of providing flexible heat sink installations for early blade board manufacturing

The present invention relates to electronic purse systems, and in particular it relates to the improved management of multiple money flows in such systems. According to the basic principles of the present invention it is proposed that the secure access modules (SAMs) of a purse provider support multiple user groups or environments in the system while still requiring only one system key. The user groups or environments are identified by a so-called float ID tag which is advantageously added to each set of data involved in a load or purchase process performed by the user of the electronic purse system.

Currency and float ID tracking in an electronic purse

A security keyboard is disclosed with a contacting circuit board, a plurality of keys and a switching foil, where the contacting circuit board comprises contact elements necessary for the security keyboard and which is substantially completely enveloped in a security film and in operating the plurality of keys the keyboard pressure is transmitted through the security film to the contacts of the contacting circuit board. In accordance with the invention, the plurality of keys are held in the switching foil in such a way that on operating the plurality of keys a tactile feedback is produced. This permits a positive switching of the security keyboard since, because of the tactile feedback, an `automatic` backpressure of the keys results through a force inflection point, after which an operating force necessary for the operation of the keys, increases again as a consequence, in part, of the security film lying between the key and the contacting means of the security keyboard.

Intrusion detection security keyboard

The invention discloses a security foil which covers a security module, wherein the security foil comprises a shielding from electromagnetic radiation from inside and outside. In a preferred embodiment the security foil comprises a metal lattice with defined lattice distances. The lattice distances can be used to change characteristics of the shielding from electromagnetic radiation, in particular the relevant spectra. The invention is especially applicable in electronic payment transactions. The invention permits effective and low-cost shielding of security modules against electromagnetic radiation from inside and outside. Additional time and labor is saved because existing components can be used.

Security foil with shielding from electromagnetic radiation

Point of sale terminal

Growing community of inventors

Stuttgart, Germany

Hartmut Droege