Patent ID: 6838920

Claim:
An enveloping curve generator comprising: an input signal, a first output signal and a second output signal, a first steering circuit that direct the input signal to a first node when the input signal goes high, and a second steering circuit that directs the input signal to a second node when the input signal goes low, a latch circuit connected to the first and the second nodes, and wherein the latch circuit provides a first output and a second output, and wherein when the input goes high the latch circuit decouples the second steering circuit and via the first steering circuit—drives the first output high, when the input goes low, the latch circuit decouples the first steering circuit and via the second steering circuit drives the second output low, and the second output going low drives the first output low, wherein the first output goes high before the second output goes high and the first output goes low after the second output goes low, so that the first output envelops the second output when both go high and the second envelops the first output when both go low.