Dallas Semiconductor Corporation

Maxim Integrated Products, Inc.

Donald W Loomis

Stephen M Curry

Christopher W Fox

Edward Tangkwai Ma

Michael L Bolan

Wendell L Little

Robert Michael Muchsel

Mark Alan Lovell

Jeffrey D Owens

Edward Tang K Ma

Thomas Augustus Chenot

Michael Anthony Quarles

Peter Schweitzer

Robert Robert Muchsel

Bryan M Armstrong

A microcontroller includes a program memory, data memory, central processing unit, at least one register module, a memory management unit, and a transport network. Instructions are executed in one clock cycle via an instruction word. The instruction word indicates the source module from which data is to be retrieved and the destination module to which data is to be stored. The address/data capability of an instruction word may be extended via a prefix module. If an operation is performed on the data, the source module or the destination module may perform the operation during the same clock cycle in which the data is transferred.

Transfer triggered microcontroller with orthogonal instruction set

The invention relates to authentication in mobile financial transactions, and more particularly, to systems, devices and methods of employing a location tracking function within a mobile device for the purpose of authenticating a user and a trusted transaction when this mobile device is configured to a mobile point-of-sale (POS) terminal. Authentication is primarily implemented by a secure element integrated within the mobile device based on comparison between captured geo-location data and some known information, such as a retailer address, this user's behavior pattern and shopping habit, that may be derived from the geo-location data. In the secure element, a secure memory stores a plurality of geo-location data from which a secure processor generates information concerning a behavior pattern or a shopping habit of the user. A V/A unit receives a real-time geo-location of the mobile device, and thereby, verifies the user or the trusted transaction according to the generated information.

Geo-location based authentication in a mobile point-of-sale terminal

The present invention relates to a microcontroller designed for protection of intellectual digital content. The microcontroller includes a secure CPU, a real-time cipher, and a user programmable multi-layer access control system for internal memory realized by programmable nonvolatile memory. Programmable nonvolatile memory allows in-system and in-application programming for the end user. The programmable nonvolatile memory is mainly used for program code and operating parameter storage. The multiple-layer access control is an integral part of the CPU, providing confidentiality protection to embedded digital content by controlling reading, writing, and/or execution of a code segment according to a set of user-programmed parameters. The cipher incorporates a set of cryptographic rules for data encryption and decryption with row and column manipulation for data storage. All cryptographic operations are executed in parallel with CPU run time without incurring additional latency and delay for system operation.

Multi-layer content protecting microcontroller

A microcontroller communicating via a data path and an address path with a memory block containing encrypted contents, the microcontroller including the capability for detecting resets effectuated in the wake of an unauthorized attempt to gain access to the encrypted contents and the capability of evading such an unauthorized attempt.

Systems and methods for protecting access to encrypted information

The present invention relates to an electronic module used for secure transactions. More specifically, the electronic module is capable of passing encrypted information back and forth between a service provider's equipment via a secure, encrypted technique so that money and other valuable data can be securely passed electronically. The module is capable of being programmed, keeping track of real time, recording transactions for later review, and creating encryption key pairs.

Apparatus for transfer of secure information between a data carrying module and an electronic device

The present invention relates to an electronic module used for secure transactions. More specifically, the electronic module is capable of passing information back and forth between a service provider's equipment via a secure, encrypted technique so that money and other valuable data can be securely passed electronically. The module is capable of being programmed, keeping track of real time, recording transactions for later review, and creating encryption key pairs.

Method, apparatus, system and firmware for secure transactions

The present invention relates to system, apparatus and method for communicating valuable data from a portable module to another module via an electronic device. More specifically, the disclosed system, apparatus and method are useful for enabling a user to fill a portable module with a cash equivalent and to spend the cash equivalent at a variety of locations. The disclosed system incorporates an encryption/decryption method.

Transfer of valuable information between a secure module and another

The present invention rotates to system, apparatus and method for communicating valuable data from a portable module to another module via an electronic device. More specifically, the disclosed system, apparatus and method are useful for enabling a user to fill a portable module with a cash equivalent and to spend the cash equivalent at a variety of locations. The disclosed system incorporates an encryption/decryption method.

A portable electronic data module for secure transactions, the electronic data module having a random number generator and an optimized co-processor for producing unbreakable key sets for a two-key cryptosystem. A real-time clock is sampled depending upon an external random event series such as power-ups of the data module by a host apparatus, and based upon the contents of the sample thus obtained, the entropy of a previously-loaded accumulator is further enhanced to achieve a pool of true random numbers. By repeatedly requesting random bytes of information from said pool of random numbers, large random numbers are created which are then rendered prime and used for key set creation.

Growing community of inventors

Coppell, TX, United States of America

Donald W Loomis