Information density decision circuit

Details Information density decision circuit Information density decision circuit

1977-03-11

1979-02-06

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 117

Patent

active

041386930

ABSTRACT:
Herein disclosed is an information density decision circuit for deciding the information density of binary-coded signals within a specific section. According to the present invention, said circuit comprises first means to detect the transition points of the binary-coded picture signal, and second means responsive to detection of said transitions to count the number of the transitions of the binary-coded signal within a predetermined section being defined and to generate an output signal when said count has reached a certain value.

REFERENCES:
patent: 3389789 (1968-06-01), Watson et al.
patent: 3919464 (1975-11-01), Kondoh

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