Delay compensator and monitor circuit having timing generator an

Details Delay compensator and monitor circuit having timing generator an Delay compensator and monitor circuit having timing generator an

1992-02-28

1993-01-19

Sikes, William L.

Electrical transmission or interconnection systems

With nonswitching means responsive to external nonelectrical...

Temperature responsive

307603, 307605, 307606, 307595, 307597, 328 55, 328 66, H03K 5159

Patent

active

051809370

ABSTRACT:
A delay compensator circuit is disclosed to compensate for variations in temperature, supply voltage and process. A monitor circuit is further disclosed that allows the monitoring of the delay of a delay element. The delay compensator circuit and monitor circuit lend themselves easily to the ASIC design methodology since they use conventional ASIC building blocks; namely gates, memory elements and delay elements. The delay compensator and monitor use a time base to track variations in circuit parameters by monitoring the delay through a delay element (delay line or sub-circuit). Compensation may be achieved by switching delays in or out of the circuit to be compensated based on variations of temperature, voltage, and process as measured using the time base. The delay compensator permits the designer to control the output hold time independently of the output delay time. The delay compensator enables a latching device to hold the output signal for the required duration after a reference.

REFERENCES:
patent: 4504749 (1985-03-01), Yoshida
patent: 4626716 (1986-12-01), Miki
patent: 4737670 (1988-04-01), Chan
patent: 4755704 (1988-07-01), Flora et al.
patent: 4878028 (1989-10-01), Wang et al.
patent: 5013944 (1991-05-01), Fischer et al.
patent: 5087842 (1992-02-01), Pulsipher et al.

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