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Medical Expertise
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DDC has a wide breadth of medical equipment experience. DDC
tends to be on the high end in terms of complexity and algorithmic sophistication,
and we ultimately culminate our experience in the most advanced applications
and highest levels of integration, using the latest FPGA technologies.
Our medical applications expertise loosely falls into 4 general categories,
as outlined below. |
| Medical Imaging |
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DDC has researched, architected, then developed, implemented,
and tested the actual hardware and software, for medical imaging applications,
for such companies as GE, Toshiba, Siemens, and Loral. Specifically,
DDC has worked with angiography lineups, CT scanners, PET scanners, coincidence
detecters, all in the image processing sections of these products. DDC
has developed very high speed portions of image reconstruction and back
projection systems, including such functions as very high speed frequency
domain filtering (FFT, IFFT, etc.), lossless compression, distortion
correction, various weighting and extrapolation functions, warp, zoom,
image reconstructions, etc. In most of these systems, DDC has developed
the hardware and also developed the driver and application software,
both in image reconstruction, image processing, and in control. DDC has
also developed and implemented a sophisticated imaging system for DNA
slide analysis, including all of the camera control. We have also co-developed
a high speed finger-print recognition system.
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| Instrumentation Control |
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DDC has developed several FPGAs and software for medical
control applications for angiography lineups, fitness machines (heart
rate monitor), ECG equipment (16 analog channel control, with remote
video switching, optical data transfer, etc.), EEG equipment, audiometric
brainwave analyzers, eye motion equipment, camera controllers, etc. DDC
has extensive experience in developing GUIs to control such equipment
as well, both for test and product uses. As an example, DDC has developed
a 2 board product (with FPGAs and software) for Toshiba which interfaced
and controlled: a CT data acquisition board (DAS) to accept the actual
scan information, motor control board for control of the gantry including
rotation, the X-Ray source for configuration of X-ray power level (eV)
and implementing safety controls, the slip ring to send the high speed
formatted scan data to the non-rotating side (stator) using up to four
2 Gbps links, the housing FAN for thermal management, etc.
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Biometric
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DDC has extensive experience in developing audio stimulus
and retinal stimulus for EEG correlation of external stimulus. This involved
developing FPGAs and software to provide AM and FM modulated tones with
very high precision and sampling rates on 12 different channels, providing
lightbar stimulus, and writing the Windows XP WDM drivers which controlled
the system. We also developed for GE a board and FPGAs for a hear-rate
monitor which included the optical data flow from the apparatus, and
subsequent control.
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| Imaging in General |
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DDC has much experience
in video and imaging electronics,
as outlined below. There are many more. The following is a high level
summary of the some of the product categories DDC has expertise in.
Set-top boxes: DDC has developed several different compression chips
including an MPEG set-top box lineup. This was an SoC which performed
full MPEG I and II audio and video digital decompression and image
reconstruction for digital TV applications. So, DDC has significant
experience in compression, NTSC, PAL, CCIR656, CCIR601, RS-170, etc.
DDC has created several tools for working with these types of systems,
and performed these various tasks for Cadence, Motorola, Sarnoff, and
ST Microelectromnics.
Digital camera chips. DDC has developed several
digital camera chips for companies such as Nikon, Kodak, and Motorola.
They
are
typically high resolution SoC devices with many image processing
algorithms, such as compression, color processing, zoom, etc. and
with many peripherals (SmartMedia, CompactFlash, etc.)
Videophone: DDC has developed significant portions of the image
processing line-up in the Motorola video cellular phone. DDC has
also written much of the image processing software which interacted
with the image processing functions, and was also responsible for
the image quality (with performing things such as white balance,
contrasting, etc.). DDC has worked extensively with video conferencing
equipment as well.
Military: DDC has researched, architected, then developed, implemented,
and tested the actual hardware, for all video/image processing elements
between several different CCD and FLIRs, to the display (both analog
and digital) at frame rates of 60fps and resolutions up to 1280.
This was accomplished with FPGAs DDC created from scratch, using
some of it’s own intellectual property, and developing the
rest. The FPGAs which DDC designed included: analog video decoder
(RS-170) and digital inputs, frame/field conversions, non-uniformity
correction, bad pixel replacement, thresholding, histogramming, contrast
enhancement/expansion, translation, rotation, zoom, picture-in-picture,
sharpening, temporal filtering/averaging, median filtering, convolution,
symbology overlay, analog video endcoders (RS-170) and digital outputs,
and all of the associated control, such as genlock, bandwidth management,
SDRAM interfaces, processor interfaces, etc. Literally, DDC has done
everything required to do this type of video and image processing
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