DEVICE FOR VCR Russian patent published in 2006 - IPC G11B5/52 

FIELD: video engineering.

SUBSTANCE: device has set of rotating heads, five pairs of amplifiers - all of the amplifier from any pair are connected together through switch -, five keys, three reproducing channels for first, second and newly introduced third formats of video recording. Any channel is made in form of two brightness signal and color signals reproducing circuits. Outputs of channels are connected with one of motionless terminals of first key through corresponding adder. Inputs of brightness signal and color signal reproducing circuits of the first channel are connected with first motionless terminals of the second and the third switches correspondingly through first pair of amplifiers. Input of brightness signal reproducing circuit of the second channel is connected with second motionless terminals of the second and the third switches correspondingly through the second pair of amplifiers. Input of color signal reproducing circuit of the channel is connected with first motionless terminals of the fourth and the fifth switches correspondingly through the third pair of amplifiers. Input of brightness signal reproducing circuit of the third channel is connected with outputs of amplifiers from the fourth pair which pair has one amplifier connected with the third motionless terminal of the second switch and the other one - with the second motionless terminal of the fifth switch. Output of brightness signal input reproducing circuit is connected with outputs of amplifiers from the fifth pair which pair has one amplifier connected with third motionless terminal of the third switch and the other amplifier - with second motionless terminal of the fourth switch. TV signal video recording channel introduced additionally provides square phase signal modulation of signal.

EFFECT: widened operational capabilities; improved efficiency.

5 dwg