Appeal No. 1997-3964
Application No. 08/319,658
control circuit 47 respectively rotates the motor M1
in a reverse direction . . . .
The motors M and M respectively move the first1 2
mode changing mechanism (Fig. 1A) and the second
mode changing mechanism (Fig. 1B) to predetermined
positions so that the VTR is capable of operating in
the selected mode. Furthermore, the position
detecting switches 49a and 49b are also connected to
the motors M and M and output a position detection1 2
signal D which corresponds to the positions of the
s
mode changing mechanisms. As illustrated in Fig. 6,
when the first and second mode changing mechanisms
are properly positioned for the PB [playback] mode,
the position detection signal D equals 8 (1000) . .
s
. .
The comparison signals D corresponds to the
4
position to which the motors M and M are instructed41
2
to move the first and second mode changing
mechanisms. Furthermore, the signal D represents
4
such positions with values that are the same as the
various values of the position detection signal D .
s
The comparator 48 inputs the position detection
signal D and the comparison signal D and outputs as 4
match signal when the signals D and D are equal.s 4
In other words, the match signal is output when the
motors M and M have moved the first and second1 2
mechanisms to their proper positions . . . .
In order to more clearly understand the
operation of the Teranishi device, an example of how
the device changes from the STOP mode to the PB mode
will be described below. First, the selection
switch 41a is depressed, and the specified mode
signal D [is] output by the mode selecting circuit
1
41 to 45 . . . . Furthermore, . . . the first and
second mode changing mechanisms are currently
positioned for the STOP mode, . . .
4
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Last modified: November 3, 2007