Patent ID: 7576584

Claim:
A clock generator to provide half-rate in-phase and quadrature clock signals in response to an input clock signal, the generator comprising: a first tri-state inverter to respond to the inverse of said clock signal; a first inverter arranged to drive said first tri-state inverter; a second tri-state inverter to respond to said clock signal and arranged to drive said first inverter in response to said first tri-state inverter; a second inverter arranged to provide said half-rate in-phase signal in response to said first inverter; a third tri-state inverter to respond to said clock signal and arranged to be driven by said second inverter; a third inverter; a fourth tri-state inverter to respond to the inverse of said clock signal and arranged to drive said third inverter in response to said third tri-state inverter; and a fourth inverter arranged to provide said half-rate quadrature signal in response to said third inverter.