H - Electricity – 03 – K
Patent
H - Electricity
03
K
H03K 5/01 (2006.01) G06F 1/03 (2006.01) H04L 25/03 (2006.01)
Patent
CA 2279680
The present disclosure discloses an apparatus for generating a shaped waveform derived from a binary input signal. The apparatus receives a binary input signal and a sample clock signal. The sample clock signal changes the state of an up/down counter. The binary input signal controls the counting direction of the counter. The counter addresses a lookup table containing stored values. Also disclosed is the apparatus in which the lookup table output is converted to an analog signal by a digital-to-analog converter. The lookup table can be programmed such that the circuit output is equivalent to a filtered version of the binary input signal. The apparatus may optionally be enabled or disabled, such that the apparatus output assumes a predetermined state when disabled.
Horvat Dion
Jelea Florin
Gowling Lafleur Henderson Llp
Vtech Communications Ltd.
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