Lars E. Thon

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The tremendous growth in wireless LANs has generated interest in technologies that provide higher data rates and greater system capacities. The IEEE 802.11a [1] standard, based on coded OFDM modulation [2,3], provides nearly five times the data rate and as much as ten times the overall system capacity as current 802.11b wireless LAN systems. This paper(More)
We have evaluated the fluoroscopic on-line portal imaging (OPI) system developed by Siemens (Beamview-1, Concord, CA, U.S.A.) in routine clinical radiotherapy, involving the treatment of 883 fields (559 patient set-ups for treatment) on 21 patients. The image was typically generated by delivering 10 monitor units when used in single exposure or 1-2 monitor(More)
We have evaluated a fluoroscopic on-line portal imaging system in routine clinical radiotherapy, involving the treatment of 566 pelvic fields on 13 patients. The image was typically generated by delivering a radiation dose of 6-8 cGy. Comparison between portal image and simulator film was done by eye and all visible errors were corrected before continuing(More)
Lager is an integrated CAD system for algorithmspecific IC design. It consists of a behavioral mapper and a silicon assembler. To generate a chip from a behavioral description, the user specifies both the behavioral description and a parameterized structural description. The behavioral mapper maps the behavior onto the parameterized structure to produce(More)
This paper describes a family of high-speed Finite Impulse Response (FIR) digital filters that have been scaled across three generations of CMOS processes. The processes include commercial varieties as well as experimental bulk and low power Silicon-On-Insulator (SOI) technologies. Wafer tests demonstrate the speed and power advantages of the experimental(More)
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