Circuit and method for externally controlling signal development

Details Circuit and method for externally controlling signal development Circuit and method for externally controlling signal development

1994-08-26

1996-01-30

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Precharge

365190, 365191, 365205, 365233, G11C 700

Patent

active

054885841

ABSTRACT:
A multiport memory having a serial access memory device. The serial access memory device is comprised of serial memory cells and a serial port. The serial memory cells store electrical information which is accessed serially. The information in a selected cell is developed in a sampling circuit to create an amplified signal which may be coupled to the serial port. The amount of signal developed in the sampling circuit is externally controlled by a user when the user controls the frequency of an external control signal. The frequency of the external control signal determines the length of time the signal is developed and therefore the amplitude of the signal. In one embodiment an isolation circuit isolates or couples the sampling circuit to a serial information node and alternately isolates or couples the sampling circuit to the serial port. The external control signal controls the signal development by controlling the time the sampling circuit is coupled to the serial information nodes.

REFERENCES:
patent: 5282166 (1994-01-01), Ozaki
patent: 5315555 (1994-05-01), Choi
patent: 5325502 (1994-06-01), McLaury
patent: 5367488 (1994-11-01), An
patent: 5386389 (1995-01-01), Taoka

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