Summary:

Systems Experience Highlights:

• Four Channel, 100MHz Digital Oscilloscope card with DDR2 Memory
• Medical Implant with MICS band wireless and transcutaneous battery charger
• IRIG Time Code decoder in an FPGA/VHDL
• Wireless Helmet Mounted Display for consumers
• Network Appliance to deliver Time to 10/100BaseT Ethernet networks
• Medical device to control a blood pump during open heart surgery (see patents, below)
• Medical device for treatment of enlarged prostate using microwaves
• Medical device for incubation and expansion of blood cells
• Medical data acquisition system for electrophysiology
• Video captioning and time coding systems
• Standalone controllers and communication devices for VCRs
• PC based digital oscilloscopes and spectrum analyzers
• Microprocessor Emulators for Intel, Motorola, and Zilog processors
• Logic analyzers
• Mobile Robots and Sensors

Technologies:

• Low power, low cost, consumer oriented product design
• ISM and 2.4 GHz band Wireless data communication system design
• Xilinx FPGAs, PLDs, All logic families, including ECL10K and 100K
• Precise Time and Frequency systems, IRIG Time Codes
• 10/100 BaseT Ethernet MAC and PHY
• ARM7TDMI based Network Processor
• TI MSP430, PIC, and every other popular microprocessor since the Intel 8080
• Power transfer through the skin for implant battery charging
• A/D, D/A up to 16 bits, up to 100MHz
• Signal conditioning front ends down to 0.5mV full scale range
• Patient isolation and input protection for ESD and EMC
• Design for and test to European EMC standards (CISPR11, IEC801)
• Design for high reliability and/or fault tolerance

Software:

• VHDL
• C on PCs and embedded microprocessors
• Assemblers for all above microprocessors

Patents:

• US Patents 5,965,089 and 6,716189 for "Circulatory Support System", Co-inventor

Other:

• PCB layout
• US and European medical standards - UL2601, IEC601, etc.
• ISO9000 and FDA Good Design/Good Manufacturing Practices

Work History:

2003 - Present   Bryant Labs   Consultant

Bryant Labs is my consulting company. In addition to the long term clients listed below, I have completed projects for many other companies, all across the country. A List of clients and references can be provided upon request.

My first two years at Symmetricom were spent designing a GPS synchronized Network Time Server to deliver time to an Ethernet network. The design consisted of an ARM7TDMI based Network processor and a Mitel GPS receiver chipset interfaced with dual-port memory. I was responsible for all aspects of the design and the project management. For the last two years, I managed the R&D department. I was responsible for up to 35 people and a $4M budget.

1999 - Present   Motion Research, Inc.   Consultant

I have been the principal hardware and firmware designer for Motion Research's Helmet Mounted Display products. The design uses TI's MSP430 family processor combined with Cypress Wireless USB chips to implement the 2.4 GHz spread spectrum wireless link. The product is designed for rugged use, very low power and weight, and high volume production.

During my 9 years at SeaMED, I was involved in all phases of the design, development, qualification, and manufacturing of Medical Devices. I spent 5 years as a Project Director, being the principal customer liaison for several contracts, the largest being over $1M. I worked very closely with clients, from initial contact and proposal generation through the delivery of the product.

Image Logic makes a family of products for the video production industry. I have designed a number of closed caption encoder/decoders, VITC and LTC time code encoder/decoders, VCR controllers, and other accessories for them.

Rapid Systems was a small manufacturer of PC based Digital Oscilloscopes and Spectrum analyzers. I designed a 2 channel, 12 bit, 1MHz system for them and was working on a 100MHz data acquisition "back end" system when I left.

I worked on the design and development of several microprocessor emulators, including ones for the MC68000 and the i8086.

I spent a brief time at Fluke working on their Hand Held multimeter lines, including the 8020 and 8024, providing sustaining engineering support.

Paratronics made a family of Logic Analyzers. While there I designed waveform capture/display and counter/timer/signature analyzer option boards.

Education:

1979 BSEE from Worcester Polytechnic Institute, with honors.

Many continuing education classes in Engineering and Project Management

Contact Information:

Keith B. Payea
Bryant Labs
985 Hyland Drive
Santa Rosa, CA 95404
(707) 566-8935 (land line)
(707) 548-9532 (Mobile)
kpayea@bryantlabs.net

Last Revised: 30-December-2005