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JPS4992818

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DESCRIPTION JPS4992818
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a stereo recorder for
explaining a conventional example, FIG. 2A is a plan view showing a recording situation, FIG. 2B
is a plan view showing a reproduction situation, and FIG. FIG. 4 is a block diagram of a stereo
tape recorder to which the present invention is applied. Further, in the reference numerals used
in the drawings, 11 is a stereo tape recorder, 15a is a left speaker, 15b is a right speaker,. 16a is
a left microphone, 16b is a right microphone, 22 is a changeover switch which is an example of
an electrical switching mechanism, 22a. 22b is a changeover switch unit. Fig. 2A = "11-53" 9 to
令 ,, 71 ,
[Detailed description of the invention] In the present invention, the left and right built-in fixed
microphones are made to correspond to the left and right speakers respectively, the left
microphone recording output is ramped out from the left speaker, and the right microphone
recording KM (IL output The stereo tape recorder K111 configured to be extracted from the right
speaker. As is well known, as shown in FIG. 1, this kind of stereo tape recorder tl + is provided
with a pair of left and right fixed microphones (2 m) and (2 b) corresponding to a pair of left and
right speakers (3 m) and (3 b) K respectively. The sound recorded in 2) is output from the left
speaker (3 m) at the time of nose, and the sound recorded by the right microphone (2 b) is
output from the right speaker (3 b) at the time of reproduction. However, because the
corresponding state of the conventional stereo tape recorder (in the 1+ both the left and right
microphones (2a) and (2b) and the left and right speakers (Im) (3b) is fixed, for example, bell
sound and playback If the direction of the recorder is reversed at any time, for example, the
sound recorded by the left microphone is unnaturally unnaturally (2) such as being heard from
the right speaker at the time of reproduction, ie, as shown in FIG. 2A. To make the recorder
opposite for the user in order to vowel the passing sound of trains and trains, etc. toward the car
or train @ the passing sound of cars and trains running from right to left to the left microphone
(21 ) When recording is performed with 111iiv <using the right microphone (2b), when trying to
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erase the user's body 11K1 character and write this time, the passing sound passes from the left
speaker (3rd) through the right speaker (3b) When obtaining between the next and ° K made
cars and train with is as if heard unnaturally as if running from left to right it becomes solving.
The present invention is intended to correct the above-mentioned defects, and both left and right!
There is an electrical switching mechanism that allows the left microphone and the right speaker
to correspond, and the right microphone and the left speaker to correspond to each other, with
the corresponding state between the left and right speakers being variable 0) In this way (even
when the direction of the recorder is reversed between recording and writing, by configuring, the
voice recorded to the left microphone or right microphone toward the recorder is always directed
to the recorder during playback as well. It can be heard from the left speaker or the right
speaker, and the most natural reproduction can be performed. Next, one embodiment of a stereo
tape recorder to which the present invention is applied will be described with reference to FIGS.
3 and 4. As shown in FIG. 3, the stereo tape recorder αυ is a cassette incorporating an FM / AM
radio receiver. The cassette mounting portion 0 is formed at the center of the front surface 131
of the recorder main body C12 (the cassette mounting portion is formed in the center portion,
and the cassette mounting portion is mounted detachably as in the prior art).
Both left and right false positions fVc of the front surface α3 of the recorder main body t
incorporate a pair of left (4) right speakers (lsm) (13b). A pair of left and right microphones
(16m) and (16b) respectively corresponding to the left and right speakers (15m) (15b) K are
directed to the front surface (13111) of the recorder main body at the upper position of the left
and right speakers (15m) (115b). Each of the L / couff 's ant c on the recorder body 0 is built in.
Ceramic recorder decka a71 VC is equipped with dial display board of radio receiver (181 and
radio receiver operation knob 0 class, operation button of tape recorder operation push button
etc., switch switch between tape recorder and radio receiver etc. There is. And this stereo tape
recorder Qllh front ffi left and right both microphones (isa) (1sb) and left and right speaker (15
Emperor) (1sb) to change the corresponding state left! A switch as an example of the
photoelectric conversion mechanism so that the Ike (16 畠) and the right speaker (15b), the
stone ii (isb) and the left speaker (5) (15 麿) can be mutually associated A company (company) is
provided in the aforementioned Knida de Aki. The changeover switch (support) switches the
circuit as shown in FIG. 4, that is, the changeover switch (221ir pair of 2-contact changeover
switch sections (20) and (z2b) is interlocked and switched). 2 In the normal condition where the
left microphone (16 鳳) corresponds to the left speaker (15) and the right microphone (16b)
corresponds to the right speaker (tab) K, both switches (z 2 m) by the selector switch @ (2zb) are
respectively switched to one side shown in the actual device, and in this state, the respective
outputs from the left microphone (1sa) and the right microphone (lsb) are as they are left
speaker (15m) and right speaker (15b) Output to the left recording amplifier and output R to the
right recording amplifier (6). Therefore, in this state, the sound recorded by the left microphone
(lem) is taken out from the left speaker (lS 鳳) at the time of reproduction, and nine right! At the
time of reproduction, the voice vowel in the tab (tab) is in the normal state that is output from
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the right speaker (16b). When switching to use the left microphone (16 @) corresponding to the
right speaker (16b) K and the left microphone (16b) corresponding to the left microphone (16
@), if you change the switch @, both switches (22 m) ) (22b) is switched to the other side
indicated by the dotted line. In this state, the outputs from the left microphone (16 m) and the
left microphone (1 ab) are the output R to the right recording amplifier connected to the right
speaker (15 b) and the left speaker (15 a) K and the output to the left recording amplifier.
Become.
Therefore, in this switching state, vowels with the left microphone (16 m) are sent out from the
right (7) speaker (1sb) when playing back, and sound recorded with the right microphone (tab) is
sent out from the left speaker (15 b) The opposite is true. Since the present invention is such that
the electric switching mechanism can correspond to the left and right internal speakers and the
left and right angle speakers by the electrical switching mechanism as described above, the
direction of the recorder is reversed between recording and reproduction. When the sound
recorded by the microphone is in an unnatural state where it can be heard from the right speaker
at the time of reproduction, the electric switching mechanism causes the right microphone to
correspond to the right speaker and the right microphone to the left speaker. Even if the
direction of the recorder is reversed between recording and playback, the left / right angle
microphone and left / right angle speaker switch the corresponding state of the left / right angle
microphone to the left of the recorder! It is convenient that the most natural reproduction can be
performed so that the voice recorded on the microphone or the right microphone can be always
heard from the left speaker or the right speaker towards the playback 8); Moreover, the above
switching is very easy) easy to handle.
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