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INTERDIGITAL AND SAIC DEMONSTRATE B-CDMA TECHNOLOGY AT WHITE HOUSE FOR PRESIDENT CLINTON

 KING OF PRUSSIA, Pa., July 22 /PRNewswire/ -- InterDigital Communications Corporation (AMEX: IDC) and SAIC (Science Applications International Corporation) demonstrated a wireless Broadband Code Division Multiple Access (B-CDMA) system at the White House for President Bill Clinton, Vice President Al Gore, Secretary of Commerce Ron Brown, members of Congress and the Federal Communications Commission today.
 The system can aid in saving lives by linking paramedics at an accident site, via B-CDMA technology, with hospital doctors miles away. InterDigital and SAIC were chosen by the Cellular Telecommunications Industry Association (CTIA), the host of this event "Wireless Working for America," because of their recent successful demonstration of this technology during the "Advanced Warfighting Demonstration" at Fort Gordon, Ga.
 The B-CDMA system transmits live video of a patient's injuries and vital signs, and allows a hospital doctor to "tele-mentor" treatment via a voice link. The paramedic is equipped with video capability and a PC-based multimedia workstation.
 The voice and video images are transmitted using InterDigital's B-CDMA technology. B-CDMA is a communication technology originally employed by the U.S. military to insure low probability of communications interception. Using this spread-spectrum technique, an enemy is not readily able to disrupt such communications by introducing artificial interference, called "jamming." InterDigital, a leader in digital wireless communications, has further developed this technology for commercial use.
 The multimedia workstation and two custom software applications that simulate the vital signs of the wounded patients were developed by SAIC. Vital signs simulating various types of wounds are stored on the file server; these are read and displayed every two minutes by the software. Another application captures a frame of the video showing the patient's wounds and transmits it to the file server, so that the doctor at the hospital can display it on his or her workstation monitor.
 The video system used in the demonstration was designed by the David Sarnoff Research Center. It provides a two-way video link between a user, who is remote or mobile, and another location. The system enables a paramedic to view an image through a head-mounted display and transmit that image to a doctor for interpretation. The doctor could, in turn, transmit instructions back, along with video images or other data. This technology is currently in the experimental phase and has been assembled with off-the-shelf components.
 Doctors, medics and soldiers from Walter Reed Army Medical Center in Washington, who also participated in the "Advanced Warfighting Demonstration," demonstrated the life-saving potential of this technology for President Clinton.
 InterDigital Communications Corporation is a pioneer in Time Division Multiple Access (TDMA) and B-CDMA technology and TDMA products. InterDigital Technology Corporation has a portfolio of more than 50 U.S. patents and 450 foreign patents covering TDMA, CDMA and other wireless technology. InterDigital's UltraPhone(R) digital radiotelephone system is installed in more than 170 locations worldwide.
 SAIC is a diversified high-technology company providing services and products to government and private sectors. With annual revenues of $1.5 billion, SAIC has 15,000 employees in more than 250 locations worldwide.
 The David Sarnoff Research Center, in Princeton, N.J., is a subsidiary of SRI International and conducts research in consumer electronics, solid state physics, material science and communications.
 /delval/
 -0- 7/22/93
 /CONTACT: Marcia A. Bexley, 215-278-7831, or Dave Buckingham (financial), 215-278-7910, both of InterDigital Communications; or Kevin Vest, 703-827-4965, or Nick Chandler, 703-556-7197, both of SAIC; or Cynthia S. Gray of the David Sarnoff Research Center, 609-734-3038/
 (IDC)


CO: InterDigital Communications Corporation; Science Applications
 International Corporation; David Sarnoff Research Center ST: Pennsylvania IN: TLS SU:


MJ-MK -- PH011 -- 4502 07/22/93 11:45 EDT
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Date:Jul 22, 1993
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