Peak detector for amplitude modulated signals

Details Peak detector for amplitude modulated signals Peak detector for amplitude modulated signals

1993-12-13

1996-02-13

Hindi, Nabil Z.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 59, 369 60, 327 58, G11B 700

Patent

active

054916810

ABSTRACT:
A circuit for detecting when peaks occur in an amplitude modulated electrical signal, and for measuring in real time the amplitudes of the detected peaks. The circuit delays the input signal a short time, and then notes when the input signal and its delayed version have the same amplitude, thereby to detect when a peak has occurred. The amplitude of the peak is then measured. This circuit and technique have particular advantages when used as part of a servo control system that positions a read/write head to accurately follow moving tracks of recorded data on magnetic tape, magnetic disks, optical disks, and the like.

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Roubik Gregorian and Gabor C. Temes, Analog MOS Integrated Circuits for Signal Processing, 1986, Chpt. 6, pp. 444-446.
Rolf Schaumann, Mohammed S. Ghausi and Kenneth R. Laker, Design of Analog Filters Passive Active RC and Switched Capacitor, 1990, Chpt. 7, pp. 444-445.

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