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JPS4736223

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DESCRIPTION JPS4736223
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a circuit diagram, and FIG. 2 shows a
waveform diagram. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · differential amplifier circuit, H · · · · · · · ·
Reproduction head. 1st fertilization 3 3) Dingjing 1 51
[Detailed description of the invention] These four options are for the magnetic JC recording
device of digital information. There are many conventional technologies for the device of the
seed type, but all are extremely circuit devices. 47-36223-02 '-(2), so the costume became bigger
and more. たとえば。 Get the elephant output of the 111 · trailing edge of the teaching style that
was played with the Nagisa head on the 1 + iJ road, and use these outputs to set the Frittsu フ ロ
Frott 1t-set and reset it to a shaped output? 1. Conventional equipment. In this case, at least a
distribution circuit, a circuit which spreads the output, and a flip-flop circuit are necessary. This
guise. □ In addition to such a large and complicated defect, there is also a large defect that the
flip-flop is triggered by the external noise. -Change to the included differential circuit. The prior
art also uses delay lines. それによれば。 Divide the reading output into two lines, and via the
delay line. The other one is used as an input to the human dynamic amplifier. It takes out the
output from the difference of insiders. Since the amplitude of the read output is also reduced by
the delay line, the output of the delay line is amplified to match the read output with the
amplitude, and then it is used as the input of the difference ILIIkIe1 width circuit. Since the
circuit of another type of at least 3 h or more is combined, the production is complicated, and the
device is enlarged due to the delay line and 47-36223-03 (3). In this case, the purpose of the
present invention is to provide a '* i * recording / reproducing apparatus which is formed of a
combination of the same circuits. The invention is illustrated in ++-b according to the illustrated
implementation fAiK. In FIG. 1, 11 is a magnetic head of a reading head, A is a differential
amplification circuit, R is a resistance ag, c is a capacitor. 2はツェナーダイオードである。 The
middle point of the filament 1 of the head 11 is grounded and + I] 'lt & amplified, 1) Both ends
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are connected to the input of the instrument l. According to this configuration, the disturbance
noise is completely eliminated since it is on both phases of (G) ←). The l toca of the O11
stationary amplifier 1 is set to 3 in 1 phase shift path 2 and differential amplification. Phase 'y) L'
° Path 2 • t1 1kj1 width device 1 o output Delay 2θ by 1θ−21, iln WCRL 'r I'm as if J. #
2 has a second letter O). In the l-working amplifier 3, the difference between the output a of the
preamplifier l and the output of the phase shift circuit 2 is the output (l (FIG. 2) k1 ()).
47-362323-04V (4) The pressure d of the N duty transmission b3 is used as an input of the
hysteresis amplifier 4. The input d is shaped into the hysteresis data-t width Hg 4 to obtain an
output e. (M21ac () kN>, the shaping level is set for each of the positive and negative input levels,
so that it does not respond to waveform distortion of the input d due to k, strong against noise
and harmonic components, correct Output playback output e. As described above, the front
amplifier l1 phase shift communication path 2. Differential amplifier 3. Both of-and hysteresis
LmMu4 are strong against the m noise etc. by the differential amplifier circuit A1-A4. If you use a
commercially available concentrator @ circuit for differential bandwidth circuit A H3. It can be
further miniaturized. For example, use fil) C55A (operational amplification circuit) described on
pages 206-207 of NEC Electronics Corporation-Tabuk 69 (issued by Shobundo Shinkosho).
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