Boots – shoes – and leggings
Patent
1984-12-31
1987-10-13
Shaw, Gareth D.
Boots, shoes, and leggings
G06F 100
Patent
active
047003278
ABSTRACT:
An apparatus for digitally storing samples of a received signal having a carrier frequency component and an angle modulation component and for subsequently reconstructing such received signal from the stored samples. The system includes a pair of digital memory systems, a first one storing samples of a signal fed thereto at a relatively high rate, and a second one storing samples of a signal fed thereto at a relatively low rate. The received signal is coupled to the first memory system for a relatively short period of time for storing therein samples representative of the carrier frequency component. The received signal is also coupled to the second memory system for a relatively long period of time for storing therein samples representative of the angle modulation component. The samples stored in the first memory system representative of the carrier frequency component are cyclically retrieved over a relatively long period of time and at the relatively high rate, while the samples stored in the second memory system representative of the angle modulation component are retrieved over the relatively long period of time and at the relatively low rate. The samples cyclically retrieved from the first memory system are combined with the samples retrieved from the second memory system to produce a composite signal, such composite signal being reconstruction of the received signal. With such arrangement, the memory storage efficiency is increased by the ratio of the bandwidth of the wideband memory to the bandwidth of the narrow band memory.
REFERENCES:
patent: 4223404 (1980-09-01), Lowenschuss
patent: 4318183 (1982-03-01), Byington et al.
patent: 4366540 (1982-12-01), Berglund et al.
patent: 4467417 (1984-08-01), Woods et al.
Devlin Peter J.
Eakman Christine M.
Raytheon Company
Sharkansky Richard M.
Shaw Gareth D.
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