Back to results
US 9,000,822 B2Granted
Programmable delay circuit
AssigneeInternational Business Machines Corporation
InventorsAlan J. Drake, Pawel Owczarczyk, Marshall D. Tiner, Xiaobin Yuan
Life of this patent
Estimating the term…
Abstract
A delay circuit includes at least one main inverter configured to receive an input signal and output a delayed output signal and at least one switchable inverter connected in parallel with the main inverter circuit. The switchable inverter is configured to decrease a delay between the input signal and the delayed output signal based on the switchable inverter being turned on.
Claims9
A delay circuit, comprising:
- at least one main inverter configured to receive an input signal and output a delayed output signal;
- and
- at least one switchable inverter connected in parallel with the at least one main inverter, the at least one switchable inverter configured to decrease a delay between the input signal and the delayed output signal based on the switchable inverter being turned on,
- the at least one main inverter including an even number of main inverters connected in series,
- the at least one switchable inverter including an even number of switchable inverters connected in series with each other,
- the even number of main inverters including a first main inverter and a second main inverter,
- the even number of switchable inverters including a first switchable inverter and a second switchable inverter, and
- the first switchable inverter connected in parallel with the first main inverter and the second switchable inverter connected in parallel with the second main inverter.
5 more elements
A delay circuit, comprising:
- at least one main inverter configured to receive an input signal and output a delayed output signal;
- and
- at least one switchable inverter connected in parallel with the at least one main inverter, the at least one switchable inverter configured to decrease a delay between the input signal and the delayed output signal based on the switchable inverter being turned on,
- the at least one switchable inverter including
- a first switchable inverter connected in parallel with the at least one main inverter and turned on and off by a first control signal, and
- a second switchable inverter connected in parallel with the first switchable inverter and the at least one main inverter and turned on and off by a second control signal.
3 more elements
Dependencies are inferred from the claim text.