H - Electricity – 03 – C
Patent
H - Electricity
03
C
354/106, 332/68
H03C 1/00 (2006.01) H03C 1/36 (2006.01) H03C 1/52 (2006.01) H04L 25/497 (2006.01) H04L 27/02 (2006.01)
Patent
CA 1178665
D21,849 METHOD AND APPARATUS FOR CONVERTING BINARY INFORMATION INTO A HIGH DENSITY SINGLE-SIDEBAND SIGNAL by A. Lender and H. H. Olszanski ABSTRACT OF THE DISCLOSURE An incoming bit stream is digitally processed to obtain both in-phase and quadrature-phase 7-level correlative signals. The two 7-level correlative signals are separately band limited to a passband having a bandwidth that is about 1/8th of the bit rate of the original bit stream, and these band limited signals are then separately analog modulated, respectively, using in-phase and quadrature-phase components derived from a line carrier os- cillator. The modulation products are then combined in a summing circuit to derive a single-sideband 7-level correlative signal.
350222
Lender Adam
Olszanski Henry H.
Gte Automatic Electric Incorporated
R. William Wray & Associates
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