Method and apparatus for decoding an encoded NRZ signal

Details Method and apparatus for decoding an encoded NRZ signal Method and apparatus for decoding an encoded NRZ signal

1992-12-23

1997-11-18

Pan, Daniel H.

Dynamic magnetic information storage or retrieval

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Core

395800, 360 40, 360 41, G06F 112, G06F 114, H04L 2549, G11B 2010

Patent

active

056896921

ABSTRACT:
A bit serial decoder is disclosed decoding an encoded non-return to zero (NRZ) signal without the use of external clock. Transitions within the encoded NRZ signal cause a differential voltage signal to be output. This differential voltage increases at a constant rate between two transitions. At the second transition the magnitude of the differential voltage is compared to a preset value to determine a number of consecutive like bits. These consecutive bits can then be transmitted in one step to a storage means.

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M. Banu and A.E. Dunlap, "Clock Recover Circuits with Instantaneous Locking", published Nov. 5, 1992, in the Electronic Letters.

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