1
Paul E Stuckert: Personal portable terminal for financial transactions. International Business Machines Corporation, Roy R Schlemmer Jr, July 7, 1981: US04277837 (319 worldwide citation)

A personal portable terminal for financial transactions adapted for use with one or more data storage and transfer cards (DSTCs) and other external devices, such as point of sale terminals, is disclosed. The transaction device includes keyboard means for entering transaction data and control informa ...


2
Horst Feistel: Stream/block cipher crytographic system. International Business Machines Corporation, Roy R Schlemmer Jr, February 16, 1982: US04316055 (195 worldwide citation)

The system disclosed comprises a dual function cryptographic system capable of operating in either a stream or block cipher mode. Further, with minimal alteration the system is capable of performing either encoding or decoding functions. The system requires three inputs, the first of which is the ra ...


3
Alan G Konheim: Method and apparatus for transaction and identity verification. International Business Machines Corporation, Roy R Schlemmer Jr, April 28, 1981: US04264782 (152 worldwide citation)

A method and apparatus whereby the senders and receivers of messages sent over a transmission system including a Host CPU may guarantee the integrity of the data content of the message and also the absolute identity of the sender. Each user of the system as well as the Host CPU contains an identical ...


4
Willard G Bouricius, Paul E Stuckert: Method and apparatus for secure message transmission for use in electronic funds transfer systems. International Business Machines Corporation, Roy R Schlemmer Jr, November 24, 1981: US04302810 (149 worldwide citation)

An electronic funds transfer system wherein it is required that a bank be reasonably guaranteed that the two parties to a retail transaction (i.e., a person and a retailer) agree on the transaction before the funds transfer takes place. The message including the transaction information is encrypted ...


5
Peter Willy Markstein, Alan Levi Tritter: Hierarchical security mechanism for dynamically assigning security levels to object programs. International Business Machines Corporation, Roy R Schlemmer Jr, August 1, 1978: US04104721 (138 worldwide citation)

A computer system organization which allows a program to specify a predetermined security level for other programs which it invokes, while at the same time being subject to security restraints placed on it either by a higher priority level invoking program or by the operating system. A plurality of ...


6
James H Pomerene, Thomas R Puzak, Rudolph N Rechtschaffen, Frank J Sparacio: Method and apparatus for guaranteeing the logical integrity of data in the general purpose registers of a complex multi-execution unit uniprocessor. International Business Machines Corporation, Roy R Schlemmer Jr, February 20, 1990: US04903196 (137 worldwide citation)

A method and apparatus for controlling access to its general purpose registers (GPRs) by a high end machine configuration including a plurality of execution units within a single CPU. The invention allows up to "N" execution units to be concurrently executing up to "N" instructions using the GPR seq ...


7
Fumihiko Saitoh: Character recognition system using the generalized hough transformation and method. International Business Machines Corporation, Roy R Schlemmer Jr, Louis J Percello, June 15, 1993: US05220621 (113 worldwide citation)

A character recognition system and method using the generalized Hough transform are disclosed. A template table which stores edge point parameters to be used for the generalized Hough transform is compressed so as to include only predetermined parameters, and is then divided into a plurality of temp ...


8
Leon Lumelsky, Sung M Choi, Alan W Peevers: Audio-video data interface for a high speed communication link in a video-graphics display window environment. International Business Machines Corporation, Roy R Schlemmer Jr, August 14, 1990: US04949169 (108 worldwide citation)

An interface architecture for interconnecting a plurality of video display devices together over a high speed digital communication link having limited bandwidth provides at each node for transmitting during a "transmit mode"; (1) sequential pixels of digital data (COMVIDOUT) comprising separate lum ...


9
Willard G Bouricius, Horst Feistel: High security system for electronic signature verification. International Business Machines Corporation, Roy R Schlemmer Jr, April 20, 1982: US04326098 (108 worldwide citation)

The system provides both electronic signature and message verification with a minimum of excess coding information on an instantaneous basis and is easily restartable in a store and forward environment. The system is based on the concept of a vault or central authority. The vault is in essence a phy ...


10
John H Anthony, William C Brantley Jr, Kevin P McAuliffe, Vern A Norton, Gregory F Pfister: Method and apparatus for efficiently handling temporarily cacheable data. International Business Machines Corporation, Roy R Schlemmer Jr, December 5, 1989: US04885680 (91 worldwide citation)

A method and apparatus for marking data that is temporarily cacheable to facilitate the efficient management of said data. A bit in the segment and/or page descriptor of the data called the marked data bit (MDB) is generated by the compiler and included in a request for data from memory by the proce ...