Boots – shoes – and leggings
Patent
1993-09-01
1995-01-03
Malzahn, David H.
Boots, shoes, and leggings
36472416, G06F 1531
Patent
active
053792424
ABSTRACT:
A ROM filter includes a number of ROMs, each of which is programmed to hold data relating to several pulse response curves during only a particular time interval. As data are read into the filter, data pertaining to a particular pulse response curve are addressed in each of the ROMs. The outputs of the ROMs are connected to an adder, which adds the data read from the ROMs and passes it through a digital-to-analog converter. In this arrangement, the ROMs are required to store only the data relating to the pulse response curves during a particular interval. These data are added together in real time in an adder which is external to the ROM. With this structure the area of the ROM can be significantly reduced, as compared with ROM filters in which the addition is programmed into the ROM.
REFERENCES:
patent: 4794555 (1988-12-01), Kojima et al.
patent: 4835723 (1989-05-01), Hansen
patent: 4958311 (1990-09-01), Kadowaki et al.
patent: 5097433 (1992-03-01), Caracciolo
K. Feher, "Digital Communications", Satellite/Earth Station Engineering, Prentice-Hall, Inc., 1983, pp. 91-201.
National Semiconductor Preliminary Data Sheet, "LMX2410 Baseband Processor for Radio Communications", Mar. 1993, pp. 1-16.
Y. Akaiwa, "Digital Modulation/Demodulation Techniques for Mobile Radio Communications in Japan", IEICE Transactions, vol. E74, No. 6, Jun. 1991, pp. 1503-1511.
National Semiconductor Preliminary Data Sheet, "LMX2411 Baseband Processor for Radio Communications", Sep. 1993, pp. 1-10.
Fague Daniel E.
Rose Dennis M.
Malzahn David H.
National Semiconductor Corporation
Nelson H. Donald
Roddy Richard J.
Steuber David E.
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