Patent ID: 7102449

Claim:
An oscillator, comprising: circuitry to affect the amount of supply current that flows through said oscillator's delay stages in order to affect delay through said delay stage; a delay stage comprising: a) at least two differential inputs; b) a pair of single ended inverters for each differential input, each pair of single ended inverters further comprising, for their corresponding differential input: i) a first single ended inverter whose input is coupled to a + input of said corresponding differential input; ii) a second single ended inverter whose input is coupled to a − input of said corresponding differential input each said first single and second single ended inverter input being coupled to only one output node of another delay stage; and, c) a differential output, said differential output further comprising: i) a + output that is coupled to each said second single ended inverter output; ii) a − output that is coupled to each said first single ended inverter output.