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JPS51121002

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DESCRIPTION JPS51121002
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a general sound field
expansion apparatus, FIG. 2 is an electric circuit diagram of the sound field expansion apparatus
according to an embodiment of the present invention, and FIGS. FIG. 1 is a characteristic diagram
of a filter used in FIG. 9 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии
и и и и и и и и и и и и и и и. Fig. 1 1 1 51-121 002 (2)-6-
[Detailed Description of the Invention] The present invention relates to a sound field expansion
apparatus, which expands the sound field as if it is a stereo, such as a radio broadcast
transmitted in a monaural, a television, an audio of a single meter, or an audio of a monaural
record. The purpose is to eliminate involuntary 1tal without expanding the voice of the person in
the playback device 9h. @: Cord 1 j Ka, block 2 of a fishing sound field expansion apparatus [email protected]
1 is an input terminal for applying voices of radio section transmission, television section
addition, note note, etc .;? #ILIIL band of input signal is separated by the pass filter 2 and the
bypass filter 3 @ This low pass filter 2 and the bypass filter 30 when The lll1 characteristics of
the bypass filter are shown. The output of the low pass filter 2 is applied to the amplifier 6 and
the amplifier 6 to smooth the speaker 7 and the speaker a. On the other hand, the output of the
bypass filter 3 is directly applied to the amplifier 6 to smooth the speaker 7, and passes through
the phaser 4 to be phase-shifted and applied to the amplifier 116 to smooth the speaker 8. Of the
sounds reproduced after a while, only the high-frequency acid component is different by -1 nK
phase and located on the left and right, and the interval between these two x bets + 117-и и и, the
actual spacing of these speakers 7.8 Shihiro. The effect of the expansion of the sound field is a
panic thing. However, when the reproduction sound or the sound field of the person's voice from
the work, -ss, interlocutor etc. is expanded, it receives a feeling of-# lt, "7. ? ? ? ? ? ? ? ?
??????????????????????????????????
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? ? ? ? ? sense of self-? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?. In the following, the
present invention is intended to eliminate such drawbacks] and to explain one embodiment of the
present invention together with the following. In the 2nd section, it is an input terminal for
applying the sound etc. of television, n-broadcasting, monaural record, etc., and separates the
dust liquid fine band of the input No. 1 into the low pass filter 1 o and the i pass filter 11. The
above low pass filter 10 (ljfi direct amplifier, amplifier 12. The amplification amount 18j1m is
added to smooth out the gain * 14 ░ 16 ииии 9 output of the above-mentioned filter 11 directly
applied to the amplifier 12 to smooth out the speaker 14, and Ndenna C4, diode D5. An input
signal from the large input terminal is applied to the wing-pass filter 17 and the pass filter 1s via
the capacitor c1 and is applied to the speaker 15 through the phase 916 via the sindenna C5. In
the low-pass filter 17, the ** ? -mOC, bypass 74, luta 1510%, and 311bc + Dg are shown to
indicate ?No.?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
??????????????????????????????????
??????????????????????????????????
? ? ? ?Connected to the common point of.
Condenona 6 bypassing the above phase @ 16 between the bypass filter 1 and the amplifier 13.
???????? Condenna C7's in-line agate-path ? connection is in decline. The output of the
bypass filter 18 is a diode D2I condenser C5, mal. Through the diode D4; and the common point
K1111 with the diode C7. 10B power supply resistance R ,, 12, 115, l ,, ?, 1 ?. 18, ml, are
connected. Sound incense-a large input signal of equal period fluid number band compared with
the input signal of human voice 1. ?????????? And ^ ^ Ipass filter 18 more variable
amount diode D, D2 11at [also high-diode D-If you pass through the output of the bypass filter 1
will pass through the phase shifter 1 и, the sound field or expanded If the diode D4 is turned on,
the output of the bypass filter 1J1 and the output of the diode 11e do not pass through the
above current I16 and the amplifier 1SIc is directly applied, so that the sound field is not
expanded. The conduction voltage values of the diodes D and D4 are set to be different from each
other, and when the rectified voltage of the diodes D and D2 is high, only the diode D5 is made
conductive in the case of the sound collection number at power. , The output of the pass filter 11
is applied to the phase shifter 16 and, conversely, when the rectified voltage of the diode D, D2 is
low, only the diode D4 is made conductive in the case of voices to the two,-- ^ Bypass the output
of filter 1 without passing it through phase ll 116 and add it directly to amplifier 13. Due to the
frequency band of this rounded input signal, the sound field can be automatically expanded, and
in the case of the front section, pseudo stereo feeling is obtained, and in the case of human voice,
the center of the fleshybee force Depending on the type of the input signal according to the type
of the input signal & so on ? can be unnatural feeling Ik * to be able to hear from the switch of
the expansion of the sound field L ' It is possible to hear the sound of the sound field и 4 simple
am l @ 6 Figure 1 is a block of a general sound field expansion device ?, Figure 2 is a sound in
one embodiment of the present invention 3A, bFi 111 E 1, and FIG. 2 are characteristic diagrams
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of filters used between electric circuits of the field expansion apparatus. 9+-Input terminal, 10 +
o и N low pass filter, 11 -1 и sharp bypass filter, 12-11 amplifier, 13 и 1. Speaker, 160.90 phase
shifter, 17 ░ и H-pass filter, 18 + I и 1- Heath filter, D, D2.
??? ????????????? Name of agent Attorney Nakao Toshio and others 1 person
We see Figure 273468 @ 2Bto, 2I91 / 131535C ? I7,1C6p4 (ri lz8-a Fig. 3 b ABCHD '? "/ to r
1" to Lulu OA20M Ken OBAc2okH2 dark 5 ? (?) 12 121002 agent's name valve ? Toshio
Tsuchio 6 other than the address mentioned above Address address in Osaka Prefecture Kadoma
city Oda Kadoma 1006 Matsushita Electric Industrial Co., Ltd. name (6152) patent attorney
Shigetaka Hino, l, ;, I2'SH,... one
09-05-2019
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