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Audio Signal Processing

Picture-stabilizing-circuit-for-generating-a-forced-synchronizing-signal

Differential summing amplifier for inputs having large common mode signals

OF A PREFERRED EMBODIMENT In the Figure, amplifier 100 has a summing stage 110, a buffer stage 120,...

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Implantable N-phasic defibrillator output bridge circuit

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Cardiac defibrillator including an electronic energy transfer circuit

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Cardiac defibrillator with movable contact switch

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Optimal energy steering for an implantable defibrillator

Three prior-art electrode options and one that is the subject of a co-pending application have just ...

Apparatus for producing configurable biphastic defibrillation waveforms

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Method and apparatus for generating adaptive n-phasic defibrillation waveforms

It is a primary feature of the present invention to provide a method and apparatus for n-phasic ...

Picture stabilizing circuit for generating a forced synchronizing signal

Details

Inventors: Kim, Jong H.;
Assignee: Gold Star Co., Ltd. (Seoul, KR)
Primary Examiner: Psitos; Aristotelis M.
Assistant Examiner: Young; W. R.
Attorney, Agent or Firm: Birch, Stewart, Kolasch & Birch

When a speed change occurs during a reproduction mode of a VCR, an analog video signal is developed that has a width determined by synchronizing the analog video signal to a point in time when an electrical potential for the head switching signal is shifted. The analog video signal is applied as a compensating signal to video signals so that a rising level is compensated for near a forced synchronizing signal. Thereby, a condition is provided for the forced synchronizing signal to be reliably detected without being effected by noise signals corresponding to the forced synchronizing signal in order to produce a stable picture.

DETAILED DESCRIPTION The embodiments of this invention are proposed for solving such conventional disadvantages as described above and aims to provide a stable picture by reliably detecting the forced synchronizing signal when a speed change occurs during a reproduction mode of the VCR so that noise signals do not effect the picture.
According to these embodiments, this problem is solved by producing an analogue video signal that is developed by synchronizing the head switching signal when the speed change occurs during the reproduction mode.
This analogue video signal is applied to the video signals so that the noise signal is increased around the forced synchronizing signal corresponding to the white level of the picture.

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