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Researchers at the University of Maryland have created hundreds of innovations that are available for licensing. Our Discovery Portfolio contains an exciting mix of vaccines, drug targets, therapeutics, devices and cutting edge techniques that promise to make a quantifiable impact on human health and the environment.
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Method and Apparatus for Conditional Access in Broadcast/Multicast Systems
Published Wednesday, October 11, 2000Following the rapid expansion of the commercial broadcasting industry, conditional access systems have been deployed extensively to meet consumers' needs. These systems are used to provide services to authorized customers such as cable TV subscribers. In fact, some programs are only accessible to those who have made payments to the program...
Categories: Microelectronics, Information Technology
Keyword(s): scrambler, conditional access
Docket: IS-99-028
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Wet Gas Temperature Measurement Probe
Published Wednesday, October 11, 2000Current technology makes it difficult to accurately detect hot gas temperature when the hot gas is laden with water droplets. The droplets tend to deposit on detecting surfaces resulting in evaporative cooling that causes inaccurate measurement of the gas temperature. For example, this problem is particularly evident in fire sprinkler arrays...
Categories: Chemical
Keyword(s): Gas temperature measurement, Fire suppression, 525
Docket: PS-2000-002
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Polarization and Wavelength Diversity for Fade Resistance in Optical Wireless Communication Systems
Published Wednesday, October 11, 2000Optical wireless communication systems are line-of-sight optical links using lasers or light-emitting diodes (LED). Data is transmitted on a laser or LED beam using some form of amplitude, frequency, phase, or polarization modulation, or a combination of these. In these systems an optical beam passes from transmitter to receiver along a path...
Categories: Microelectronics, Information Technology
Keyword(s): Fade Resistsance, Wavelength diversity, frequency polarization
Docket: IS-99-034
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A Method for Eliminating the Requirement for Synchronized Clocks in Distributed Routing Approaches that are Dependent on the Temporal Ordering of Events
Published Wednesday, October 11, 2000A new approach to routing in highly dynamic networks has been recently introduced. The Temporally Ordered Routing Algorithm (TORA) is a significant departure from traditional datagram routing approaches used in static or quasi-static hardwired networks. A unique aspect of TORA is the use of time information to establish the temporal-order of...
Categories: Information Technology
Keyword(s): wireless, radio transeivers
Docket: IS-99-102
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IMPACT Agent Development System
Published Wednesday, October 11, 2000An intelligent agent is a program that gathers information or performs other services without a user's immediate presence and on a regular schedule. Typically, an agent program, using pre-set parameters, searches and gathers information of interest on a network, and presents it to the user on a periodic basis. For example, agents have been...
Categories: Information Technology, Software + Algorithm
Keyword(s): 525
Docket: IS-99-094
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Living Cyclopolymerization of Nonconjugated Dienes
Published Wednesday, October 11, 2000Researchers at the University of Maryland, College Park, have invented methods and a catalyst for the cyclopolymerization of non-conjugated dienes. The catalyst is an amindinate-based zirconium precatalyst. Upon activation with a borate co-catalyst, it not only allows for the stereospecific living polymerization of alpha-olefins, but can...
Categories: Chemical
Keyword(s): dienes, cyclopolymerization, alpha-olefins
Docket: LS-2000-046
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Polymeric Nanoscale Solid-State Battery
Published Tuesday, October 10, 2000Laptop computers and mobile telephones have become smaller and faster. Unfortunately, the demand for battery power has not fallen; demand for power has increased and as the products decrease in size they approach a size limit dictated by the size of the battery.Researchers at the University of Maryland are developing a nanoscale solid...
Categories: Microelectronics, Nanotechnology + Nanoparticles + Nanomaterials
Keyword(s): battery, solid state, nanotechnology, portable devices
Docket: PS-2000-075
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RangeWidget™
Published Sunday, October 1, 2000RangeWidget™ is used to select a range of discrete values similar to the OST Motif XmScale and Xm ScrollBar widgets, but provides selection of a range of values instead of just a single value. A range of values consists of a set of a lower and an upper value within minimum and maximum values.For more information, contact the Office of...
Categories: Education/Training/Multimedia, Information Technology
Keyword(s): OST Motif XmScale, range of values
Docket: IS-95-052
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A Method for Fabrication of Vertically Coupled Integrated Optical Waveguide Resonator, Coupler and Interferometer Devices
Published Tuesday, August 29, 2000Integrated photonics are a very useful technology for the transmitting, receiving, routing and processing of information in optical form, as is widely documented in extensive literature. Many integrated photonic devices require the controlled coupling of light from one waveguide to another in an integrated chip. It has long been known that a...
Categories: Sensors/Monitors
Keyword(s): Optical Waveguide, projection lithography
Docket: PS-2000-050
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Source Encoding Assisted Multiple Access (SEAMA) Protocol for Voice-Data Integrated Wireless Networks: A Technique for Trading Quality of Service for Network Capacity
Published Sunday, July 30, 2000Some recently proposed Multi-Access Protocols (MACs) integrate voice and data in wireless communication networks; Packet Reservation Multiple Access (PRMA) is one such protocol proposed for micro-cellular wireless communication systems. In PRMA, voice and data are separated. The bandwidth is dynamically partitioned between voice and data, i.e.,...
Categories: Information Technology
Keyword(s): wireless; voice and data, voice encoder, EDTA, TDMA
Docket: IS-2000-057