Dallas Semiconductor Corporation

Maxim Integrated Products, Inc.

Cypress Semiconductor Corporation

Hal Kurkowski

Robert D Lee

Michael L Bolan

Stephen M Curry

Kevin E Deierling

Donald R Dias

Francis A Scherpenberg

Steven N Hass

William L Payne, Ii

Scott E Jones

Donald R Diaz

Gary V Zanders

James Price Cusey

Jeff A Gordon

Jagdish Pathak

James D Awtrey

Guenter H Lehmann

Dov-Ami Vider

Stephen M Douglass

Bradley M Harrington

Eric W Mumper

John M Wettroth

David Richard Gruetter

Prem Ramachandran Nayar

Subbayya Chowdary Yanamadala

Carlton Michael Haight

Samer A Haija

Stephen M Douglas

Shiauchwun G Pwu

Jeffery Alan Gordon

Chowdary Subbayya Yanamadala

Guenther H Lehmann

Kevin E Peirling

Systems and methods of the present invention allow to determine ambient gas temperature in harsh environments such as in a steam autoclave chamber during a sterilization process. In certain embodiments of the invention, temperature data is gathered using a sensor that is placed in an enclosed electronics-based temperature logging device. A capsule seals the temperature logging device except for a through hole that, during regular operation, allows gas to directly contact a surface of the temperature logging device in order to reduce a time lag between the data logging device and an ambient gas. As a result, the data logging device accurately can track temperature variations when placed, for example, inside a chamber.

Systems and methods for logging data in harsh environments

Various embodiments of the invention provide for secure data communication in industrial process control architectures that employ a network of sensors and actuators. In various embodiments, data is secured by a secure serial transmission system that detects and authenticates IO-Link devices that are equipped with secure transceivers circuits, thereby, ensuring that non-trusted or non-qualified hardware is prevented from connecting to a network and potentially compromising system behavior.

Systems and methods to secure industrial sensors and actuators

Various embodiments of the invention achieve optimal data security by adding a security layer to data at the point of generation. Some embodiments add a security feature to data that controls or configures a device at a physical interface.

System and method to securely transfer data

An integrated circuit package comprising an enclosure including a dielectric housing, a first electrical contact, and a second electrical contact. The dielectric housing, the first electrical contact, and the second electrical contact are configured to form a contact side of the enclosure. In addition, the first and second electrical contacts are sized to be substantially alignment insensitive for electro-mechanical connection to corresponding contacts of an end-use equipment. The enclosure encapsulates an integrated circuit die which is electrically coupled to the first and second electrical contacts. The alignment insensitive first and second electrical contacts may be electro-mechanically connected to corresponding contacts of an end-use equipment (e.g., a printer). Further, the integrated circuit package may be hosted by a peripheral device (e.g., a printer cartridge).

Single sided, flat, no lead, integrated circuit package

An integrated circuit includes a sensing module, a measuring module, a comparing module, and memory. The sensing module senses radiation incident on the integrated circuit. The measuring module communicates with the sensing module and measures an amount of the radiation incident on the integrated circuit. The comparing module communicates with the measuring module and compares the amount of the radiation to a predetermined threshold and generates an indication that the amount of the radiation is less than the predetermined threshold or that the amount of the radiation is greater than or equal to the predetermined threshold. The memory stores the indication.

System and method to electronically determine adequate gamma radiation sterilization time

Single-sided, flat, no lead, integrated circuit package

Integrated circuit package device comprising electrical contacts making solderless and bondless electrical-mechanical connection

A security device is disclosed. In one embodiment, the security device includes a memory device comprising having a first memory portion configured to store a device ID; and a second memory portion configured to store a device secret. The security device further includes a processor connected to the memory device wherein the processor is configured to read the stored device ID from the first memory portion and the stored device secret from the second memory portion and perform a nonreversible computation using the stored device ID, the stored device secret, and a challenge as seeds. Additionally, the security device includes a communication circuit connected to the processor, the communication circuit configured to receive the challenge from a host device and to communicate a result of the nonreversible computation performed by the processor.

Security device and method

A device and method for measuring temperature is disclosed. The device, for example, can include a thermocouple configured to generate a voltage indicative of a junction temperature; a memory device configured to store a unique device ID and to store data; a logic unit connected to the thermocouple and the memory device; an I/O interface connected to the logic unit, the I/O interface configured to communicate with a computer system; and an internal temperature sensor connected to the logic unit, the internal temperature sensor configured to determine a cold junction temperature.

Environmental condition sensor device and method

A temperature-controlled counter/clock arrangement is provided where th rate or frequency of the counting is temperature dependent. This allows for a measuring of thermal accumulation and/or history. The temperature sensing is based upon the use of the varying current that will flow through a toward biased semiconductor diode. In one embodiment a constant voltage source is used so that the current variation will follow Arrhenius's law.

Temperature sensing systems and methods

A method of communicating information between a host device and a potentially portable module device which measures thermal accumulation over time via a temperature controlled counter. The temperature controlled counter may operate using substantially Arrhenius' law. The host device communicates with the portable module via a single wire bidirectional data bus. The single wire bus and one-wire communication protocol allows data flow between a host and a plurality of devices connected to the single wire bus. The single wire bus allows for a great versatility of uses for the portable module.

Method of communicating over a single wire bus between a host device and

A system architecture which provides efficient data communication, over a one-wire bus, with a portable data module which does not necessarily include any accurate time base whatsoever. The time base in the module can be extremely crude (e.g. more than 4:1 uncertainty). An open-collector architecture is used, with electrical relations defined to absolutely minimize the drain on the portable module's battery. The protocol has been specified so that the module never sources current to the data line, but only sinks current. The protocol includes signals for read; write-zero; write-one; and reset. Each one-bit transaction is initiated by a falling edge from the host. The time base in the module defines a delay, after which (in write mode) the module tests the data state of the data line. In read mode, after a falling edge the module does or does not turn on its pull-down transistor, depending on the data value. Thus, the host system, after the falling edge, attempts to pull the data line high again, and then tests the potential of the data line to ascertain the data value.

Single wire data communication method

An apparatus includes a circuit positioned in a housing, which circuit includes an input/output module having a parasitic power sub-module. The circuit further includes a scratchpad memory, coupled to the input/output module; a programmable memory, coupled to the scratchpad memory; and a control module, coupled to the input/output module, the scratchpad memory and the programmable memory. In certain variations, the input/output module further includes at least one of a one-wire bus and a three-wire bus in addition to a bus arbitrator.

Portable electronic data carrier

A secured metal token using a single wire communication system is employed to dispense units of value and to provide a secure storage device for controlling the dispensing of articles or service items. The metal token can be formed of two pieces with a simplified electronic circuit inside which can contain units of value for the dispensing of items using the memory within the metal token as a secure vault. The token uses a simple two wire (ground and combined clock/data) arrangment. As goods are purchased or services rendered the value of those good or services is deducted from a prestored amount within the token.

Metal token having units of value stored therein using a single wire

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Dallas, TX, United States of America

Hal Kurkowski