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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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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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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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Method and Apparatus for Compressing and Decompressing Images
Published Wednesday, October 11, 2000Researchers at the University of Maryland have developed an efficient image compression method for transmission or storage where one or more regions of interest are emphasized. The regions of interest can be selected either by the user or system that is initially encoding the image, or by the user or system that receives and decodes the image...
Categories: Information Technology
Keyword(s): 525
Docket: IS-98-006
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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
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A Process for 3-Dimensional Micro Mechanisms
Published Sunday, July 9, 2000Many curent technologies for producing non-planar microstructures such as LIGA, deep reactive ion etching and laser etching result in simple extrusions of 2-dimensional planar surfaces. Some prior art methods that do generate 3-dimensional micro-devices, such as component bonding and hinged structure fabrication, require manual assembly and thus...
Categories: Industrial Processing
Keyword(s): MEMS, micrelectronic devices, micro structures
Docket: PS-98-007
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KidPad: A Collaborative Storytelling Environment for Children
Published Wednesday, July 5, 2000KidPad is an end-user application for children to create stories by working together. KidPad allows the children to see an overview of the entire story they created by leaving an individual “page” and zooming out to view all pages at once. Individual areas can be zoomed in on, and more detail can be added. A typical use is to draw something...
Categories: Education/Training/Multimedia
Keyword(s): story creation, zoomable, educational tool
Docket: IS-2000-019
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Fisheye Menus For Selecting an Item From a Long List
Published Wednesday, May 10, 2000This invention relates to software code enabling the selection of an item from a long list, using, for instance, long linear menus. Such menus might include a list of the top 100 web sites, or 200 countries that the user must select from. As suggested, a fisheye menu would allow the user to view entries of a list appearing on a computer screen in...
Categories: Education/Training/Multimedia, Information Technology
Keyword(s): 525
Docket: IS-2000-025