Method for the time correction of a digital switching signal

Details Method for the time correction of a digital switching signal Method for the time correction of a digital switching signal

1981-07-02

1982-12-21

Martin, John C.

Boots, shoes, and leggings

307354, 358183, 328146, H03K 508, H03N 522, G06G 730

Patent

active

043653081

ABSTRACT:
The invention concerns a method of time-correcting a digital switching signal. To derive a switching signal from a television signal in conventional analog technique, the television signal is passed through a threshold value device which provides the switching signal when the threshold value is exceeded. In digital processing, however, this can give rise to faults since the exceeding of the threshold value is not recognized until the following scanned value of the digital television signal so that the switching signal is delayed relative to its true position. To avoid this a time correction signal is formed which corresponds to the amount by which the actual switching signal is delayed relative to its true position, and this correction signal is used to produce a series of control signals which effect a progressive switching of the digital signal.

REFERENCES:
patent: 4312075 (1982-01-01), Murano et al.

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