Medical Monitors: State-of-the-art, miniaturized
SMT biomedical amplifiers (reject ESU and RFI, very low noise, etc.), up to 8 channel high
performance EEG medical amplifier systems, non-invasive blood pressure using oscillometric
and auscultatory method, transcutaneous blood gas, dual and triple wavelength non-invasive
pulse oximeter with wireless RF linking, EEG cerebral function, dual-channel EEG Low- Cost
Student Monitor, inter-cranial pressure, gaseous oxygen, 8 to 16-channel EMG with 1.2 Mbps
mini-coaxial PCM linking, chiropractic EMG scanning; Digitized EKG with full
defib protection and continous electrode impedance monitoring; stainless steel dry
electrodes with embedded preamplfier; EKG amplifier with ESD/RFI protection and test/cal
signal injection while maintaining over 200 Meg input impedance and 100dB CMRR; mini-OEM
oximeter board with under 75mW power draw.
Medical Controllers: endoscopic surgery brushless
motor controller with synthetic voice status reporting, anti-decubitus air and water bed
Standards: IEC60601-1-xx; FCC Part 15 &
68. Design review of products for Euro CE - ESD, RFI, EMI Susceptibility and Emissions
Wireless rain sensor and control system for Condo Lanai's,
Hall-effect precision current sensors, optical bar-coded door/ auto key drawer secure
access & control system; HVAC Energy conserving thermostat with building data network;
power plant control circuit boards; race track photo-finish timing and control
instruments; high-speed machine tool speed optimizer using FFT analysis; automatic
wireless RF linked service truck monitoring system with Windows based database reporting;
plug-in test and measurement instrument system for the PC-ISA bus; twin engine and single
engine aircraft security systems; telecommunications system products (very low cost
modems), phone-line measurement instruments; enhanced RS-485 plant data network, CRC
coding and data encryption subsystems; industrial valve closed loop controllers with
MOD-BUS interfacing. High voltage generation: 55KV at 2amps peak (Stun devices). In
analytic chemistry; DPV - Differential Pulse Voltammetry and Potentiostats.
Analog Circuits Technology:
Wireless Links: Serial data interfaced Bluetooth
networking, design: DC to 950 MHz, 902 MHz digital/ voice FM short-range communication
systems, SAW and helical wave filters, antenna design (Yagi, Log-periodic, trap
multi-band), phase-lock loops, frequency synthesis by phase locked loop or DDS, Modulation
designs using FM, DPSK, OOK and quadrature PSK links. Proximal inductive linking for fuel
pumps and RFID cards, amplifiers, Class A, AB, C, D; short range Bluetooth and Zigbee data
link to pocket PC..
Other: Linear and digital servo control, voice
messaging subsystems, transducers for pressure, temperature, EMG, humidity, position,
load, ultrasound, IR, power supplies: linear and switching to 100W, High Voltage pulse
generation (to 60KV), A-to-D conversion to 24 bits, comparators to UHF range; platinum RTD
temperature probe auto-calibrating input processor -- immune to lead wire resistance.
Digital and Interface Circuits and Software:
Interfaces: RS232; USB 1.1, 2.0; Bluetooth with iPAC comm;
Zigbee and Mesh wireless networking.
Digital: Real-time digital control, digital filters (IIR
and FIR), embedded controllers with PIC 24FJ256DA210 Graphics Engine based controller,
PIC18F6310, PIC16F87x/ 18F25x, AVR and Intel/ Dallas 80C5x series, TI
MSP430P14x and TMS320 DSP series for modems and medical/ industrial signal filtering.
Altera FPGA and CPLA, MicroChip PIC and Intel assemblers, CCS and IAR
"C" compilers, Visual Basic-6, Windows CE, LabView, Protel.
Custom LCD displays with magnetic wand touch selection, LED
alpha-numeric, 1/4 VGA LCD; CCFL back-lit displays; 4W touch screen interfacing