Table 1 Comparison between different modulation schemes in terms of frame rate/display time.

Binary (1-bit)

\(6.6\;{\text{kHz}}\)

\(150\;\upmu {\text{s}}\)

Time (8-bit)

\(26\;{\text{Hz}} = \frac{{6.66\;{\text{kHz}}}}{{2^{8} }}\)

\(38.4\;{\text{ms}} = 150\;\upmu {\text{s}} \times 2^{8}\)

Time (4-bit)

\(416\;{\text{Hz}} = \frac{{6.66\;{\text{kHz}}}}{{2^{4} }}\)

\(2.4\;{\text{ms}} = 150\;\upmu {\text{s}} \times 2^{4}\)

Amplitude (8-bit)

\(833\;{\text{Hz}} = \frac{{6.66\;{\text{kHz}}}}{8}\)

\(1.2\;{\text{ms}} = 150\;\upmu {\text{s}} \times {8}\)

Amplitude (4-bit)

\(1665\;{\text{Hz}} = \frac{{6.66\;{\text{kHz}}}}{4}\)

\(0.6\;{\text{ms}} = 150\;\upmu {\text{s}} \times {4}\)