High End Ultrasound System

Analog aquisition and multiplexer boards. These boards provide low noise acquisition of a large number of signals at high speed, format and transmit the data to a digital control board and then to a controlling computer. The analog signal acquisition board has over 3400 parts and 16 layers with extensive plane and island design to preserve the low noise signals in a noisy digital environment. Four 676 pin BGA FPGA's provide local control. Formatted data is transmitted out at 48 Gb/sec. For more information visit

Production Run Transducer Test
Multiplexer Board Multiplexer Board
Production Run Signal Acquisition Board

Heartstream XLT Defibrillator

System and main controller design. Overall product validation, test, and regulatory qualification testing. This was the last product designed by the resuscitation group of Agilent Technologies (previously Hewlett Packard, now Philips) in McMinnville, OR.

Defibrillator XLT Defibrillator

Inovise Heart Sound Detection Algorithm

Developed the heart sound detection algorithm used in the Inovise Audicor product. This was an extensive DSP algorithm project that involved data collection, biomedical research and sensitivity-specificity evaluation. You can view the resulting published application at the United States Patent and Trademark Office: 20040267148 (30Dec04 - Method and System for Detection of Heart Sounds).
To view Audicor products visit:

Received Medical Design Excellence Award in 2004 for development of this algorithm.

Large Industrial Research Test System

The exact details of this project are proprietary information reserved by the customer. It has 128 RF channels and puts out about 1.3kW of power. Responsible for much of the system design and integration as well as design and layout of the multichannel output circuit boards. This was a project coordinated between 7 local area engineering contractors combining the expertise of Electrical Engineers (analog, digital and RF), Software developers, and Mechanical Engineers.

Prototype circuit Prototype Circuit
close up one channel One Channel Close Up
close up eight channel Eight Channel Close Up
Output Board Output Board
Output Cabling Output Cabling
full system Full System


Sirius Design and Technology, LLC is a contract engineering firm specializing in electrical aspects of product development, design and test.

Through close association with firms offering mechanical and software design we are able to offer multidisciplinary services. These services could be small contained portions of a project you need help with, or could range up to full product design and test - from concept to manufacturing. We have combined product design experience of over 100 years and have completed major projects with customers such as Hewlett Packard, Philips Medical, Delphinus Medical and many others.