Browse Prior Art Database

Image and Signal Analysis Display Adapter

IP.com Disclosure Number: IPCOM000115472D
Original Publication Date: 1995-May-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 83K

Publishing Venue

IBM

Related People

O'Brien, TM: AUTHOR

Abstract

Disclosed is an adapter card for a personal computer with a capability to merge image and signal analysis information for simultaneous display on a single display unit. An ability to store and replay data is also made available.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Image and Signal Analysis Display Adapter

      Disclosed is an adapter card for a personal computer with a
capability to merge image and signal analysis information for
simultaneous display on a single display unit.  An ability to store
and replay data is also made available.

      This adapter card may be used, for example, by a medical
researcher examining cardiac response, as monitored by ultrasound and
by an ECG (electrocardiogram) during an experiment.  An ultrasound
image is displayed on the computer monitor, along with time and
frequency representations of the ECG signals.  Images displayed in
real-time during the experiment may be replayed later to focus on a
particular event.

      Fig. 1 shows the display screen of this example application.
This screen 10 is divided into a quadrant window 12 displaying the
ultrasound image, a quadrant window 14 displaying the ECG signals, a
quadrant window 16 displaying FFT (Fast Fourier Transform) signals
derived from the ECG signals, and a quadrant window 18 displaying a
control menu.

      Fig. 2 is a functional block diagram of the display adapter
card.  In this example, an application running on the personal
computer allows the medical researcher to view an ultrasound image in
quadrant window 12 (Fig. 1).  The Realtime-RGB signals from the
ultrasound equipment are applied through input lines 20 as inputs to
an analog multiplexor 22.  The outputs of multiplexor 22 are applied
as inputs to a triple analog-to-digital convertor 24, which in turn
provides inputs to a Picture in Picture processor 26.  Within this
processor 26, a video picture intended for a full screen is
compressed to fit into the quadrant window 12.  This compressed video
is then passed through a triple video digital-to-analog convertor 28.
PC system video information, such as pixel data, the horizontal and
vertical synch signals, and the blank signal, is jumpered to the
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