Device for automatically controlling the asymmetry of a signal

Details Device for automatically controlling the asymmetry of a signal Device for automatically controlling the asymmetry of a signal

1977-08-23

1979-02-20

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 8, 358130, 328 58, 328164, H04N 584, H03K 504

Patent

active

041410335

ABSTRACT:
When a color television signal is recorded on a video disc and said signal is read a complication arises owing to the asymmetry which is produced in the signal by the various process steps. This gives rise to spurious components whose influence should be minimized by a suitably selected coding system. The invention proposes a device with which the influence of this asymmetry is automatically reduced. This device comprises two separator stages for supplying two sub-signals which respectively represent the rising and falling edges of the information signal. The phase relationship between these two sub-signals is controlled with the aid of a phase shifter. The control signal required for this is produced with the aid of a detector which responds to an asymmetry component in the information signal. The two corrected sub-signals are subsequently recombined to the information signal.

REFERENCES:
patent: 3988531 (1976-10-01), Laub
patent: 3988532 (1976-10-01), Korpel

Affiliated with

Also associated with

Rating

Device for automatically controlling the asymmetry of a signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for automatically controlling the asymmetry of a signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for automatically controlling the asymmetry of a signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260975