Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Patent
1994-06-15
1998-12-01
Chin, Stephen
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
375279, 375339, 329304, H04L 512, H04L 2302
Patent
active
058449434
ABSTRACT:
A rectangular to phase converter (201) includes a first converter circuit (201B) which limits signals to a predetermined level. A phase selector (259) selects a relative phase from the limited signals. According to one aspect of the invention, input rectangular coordinate signals are mapped to the first quadrant in a first quadrant mapping circuit (201A) before the first quadrant signals are limited and the relative phase signal is returned to the original quadrant by an original quadrant mapping circuit (260).
REFERENCES:
patent: 4509017 (1985-04-01), Andren et al.
patent: 4674105 (1987-06-01), Suzuki
Diehl John
Goode Steven H.
Kazecki Henry L.
Chin Stephen
Motorola Inc.
Phan Hai H.
Vaas Randall S.
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