Patent ID: 11881974
Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A modulation apparatus for modulating n-bit data (n is p+q+r), the modulation apparatus comprising:
a time difference modulation unit configured to form a time difference between a sync impulse and a data impulse to correspond to p-bit data;
an impulse amplitude modulation unit configured to modulate the amplitude of the sync impulse to correspond to q-bit data and modulate the amplitude of the data impulse to correspond to r-bit data; and
a matching unit configured to combine the modulated sync impulse and the modulated data impulse,
wherein the time difference modulation unit comprises:
a digital-to-time converter (DTC) configured to receive a clock signal and delay the clock signal to correspond to the p-bit data to form a data edge corresponding to the data impulse; and
a window generator configured to receive the data edge, form a data impulse window corresponding to the data edge, and form a sync impulse window corresponding to a reference edge of the clock signal.