Digital data sense amplifier and signal differentiator

Details Digital data sense amplifier and signal differentiator Digital data sense amplifier and signal differentiator

1982-02-22

1984-09-11

Ruggiero, Joseph F.

Boots, shoes, and leggings

364732, 307359, 307351, 328165, G06J 712, H03K 5153

Patent

active

044714513

ABSTRACT:
A digital data sense amplifier is disclosed for detecting small signal outputs from a storage media or from input sensors and comprises a differential amplifier whose outputs are coupled via two capacitors to an offset circuit which generates two offsets which in turn are fed to two comparators, one for a positive signal threshold and one for a negative signal threshold. This results in peak to peak data sensing in a noisy signal environment. An alternative embodiment differentiates an inputted analog signal and outputs a digital representation of the first derivative, or rate of change of said analog signal.

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patent: 4160175 (1979-07-01), Trout
patent: 4183025 (1980-01-01), Kutaragi et al.
patent: 4328434 (1982-05-01), Geller
patent: 4352030 (1982-09-01), Beesley
patent: 4398154 (1983-08-01), Lee
"A Bubble Memory Differential Detector," Wynn, W. D., The Bell System Technical Journal, vol. 60, No. 4, Apr. 1981, pp. 485-500.
"Type TIB0834 Bubble-Memory Dual Sense Amplifier," Texas Instruments, Inc., Jan. 1981.
"Floppy Disk Read Amplifier," Motorola(MC3470) Linear Interface Integrated Circuit Data Book, 1979, pp. 4-59-4-72.

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