Cem Erin Phones & Addresses
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San Dimas, CA
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271 Newbury St, Boston, MA 02116
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Allston, MA
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Hollywood, CA
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60 Wadsworth St, Cambridge, MA 02142
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Buffalo, NY
Publications
Us Patents
Power-Efficient Communication Protocol
View pageUS Patent:
6553535, Apr 22, 2003
Filed:
Aug 20, 1999
Appl. No.:
09/378411
Inventors:
Haruhiko H. Asada - Concord MA
Cem Erin - Cambridge MA
Kai-Yeung Siu - Charlestown MA
Cem Erin - Cambridge MA
Kai-Yeung Siu - Charlestown MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
G11C 2900
US Classification:
714777, 714783, 375269
Abstract:
A method and apparatus for telemetering data on a channel having a maximum data rate by utilizing a power efficient communication protocol is provided. The data to be telemetered comprises a number of source symbols where each source symbol is characterized by a probability of occurrence. A sequence of signals forming codewords having an energy and a length is produced. The length for the codewords is based at least on the number of symbols to be coded. Each codeword signifies a specified source symbol on the basis of a mapping between source symbols and codewords. The mapping is such that each source symbol of lower probability of occurrence is associated with a codeword of at least equal energy.