Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1986-07-31
1987-08-04
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358136, 358138, 375 27, H04N 712
Patent
active
046849831
ABSTRACT:
In systems in which the current digitized level value of a synthesized-signal sample (e.g., a television video signal sample) is determined by summing a transmitted error-signal-sample level value and a delayed previous synthesized-signal-sample level value, the dynamic range of the transmitted error-signal samples are reduced by as much as one-half. This is accomplished by passing the error-signal samples through a first non-linear processor (NLP) before transmission thereof and then passing the summed output through a second NLP. Both NLPs exhibit the same specified transfer function taught by the present invention.
REFERENCES:
patent: 4077053 (1978-02-01), Ishiguro
patent: 4099122 (1978-07-01), Van Buul
patent: 4179710 (1979-12-01), Ishiguro et al.
patent: 4200886 (1980-04-01), Musmann et al.
patent: 4368487 (1983-01-01), Sabri
patent: 4388729 (1983-06-01), Spencer et al.
patent: 4541102 (1985-09-01), Grallert
patent: 4574383 (1986-03-01), Irie et al.
patent: 4609941 (1986-09-01), Carr et al.
Acampora Alfonse
Lu Chung H.
Britton Howard W.
Peng John K.
RCA Corporation
Steckler Henry I.
Tripoli Joseph S.
LandOfFree
Non-linear processor for reducing the dynamic range of a digitiz does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-linear processor for reducing the dynamic range of a digitiz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear processor for reducing the dynamic range of a digitiz will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-886690