Method and apparatus for signal companding

Details Method and apparatus for signal companding Method and apparatus for signal companding

1989-10-16

1991-04-23

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 36, 358167, 358 54, 381106, 333 14, H04N 336, H04N 5253

Patent

active

050104101

ABSTRACT:
A method and apparatus for signal companding is disclosed that incorporates a log-offset companding technique to provide both a high bandwidth over the dynamic range of the signal being processed as well as temperature stability. In addition, the incorporation of log-offset companding technique provides the capability of generating a family of transfer curves. The ability to provide a family of transfer curves is particularly useful, for example, in telecine machines adapted to scan more that one type of film.

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patent: 4833532 (1989-05-01), Abe
Dieter Poetsch, "A Digital CCD Telecine for HDTV", presented at the International TV Symposium in Montreux, Switzerland, Jun. 1989.

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