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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a conventional apparatus,
FIG. 2 is an explanatory diagram for explaining the necessity of the present invention, and FIG. 3
is a block diagram showing an embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radio equipment
suitable for use as a bridge between fishing boats and commercial ships, and relates to an
improved technique of the Japanese Utility Model Application No. 54-157001 proposed by the
applicant. In recent years, there are tend to equip various types of wireless devices with all types
of wireless devices, as the available wireless communication & imperial zone or wide 11 σ σ 辿
辿 σ r 2 式 式 式 多 様 多 様 式 ジ ジ ジ ジFor ton tankers 17. One SSB reception and reception
One medium frequency wave receiver Total number of two receivers (of which one for
emergency) One radio direction finder, One automatic receiver, one Facile millimeter receiver,
etc. In addition, in the fishing boat, those equipped with a loudspeaker such as a no.
Conventionally, when driving these receivers, several units are driven at the same time, so that
the loudspeakers dedicated to the respective devices are simultaneously listened, and the
direction of the π source and the sound quality are distinguished. In contrast to this prior art,
the applicant has proposed the device shown in FIG. First, this will be described. Ek and St are a
pair of loudspeakers provided on the left and right of the boat bridge, and the one having the
same cycle mantissa characteristic is preferable. AI and AI are wide band amplifiers of
loudspeaker su and stJ + 1. 6R, + R,... Rn are the various receivers described above. T, T,... Dl is a
delay circuit for delaying the output of the attenuator T1 by a predetermined amount Δt, and the
output is supplied to the amplifier A1. Dll is also a delay circuit which delays the output of
attenuator T by a predetermined amount Δtl, the output of which is supplied to amplifier A.
Similarly, the output of the reducer T, is a slow circuit, at D29 respectively Δtl + Δt9! Delayed to
gain amplifier A1. A, to be supplied. In this case, the delay types .DELTA.t1 and .DELTA.t of the
delay circuit D1 + D5 are different and .DELTA.tlN and .DELTA.t99 are set to be different. The
outputs of the attenuator Tn are respectively delayed by and .DELTA.tnn at the delay fJ
stop circuits Dn and Dnn and respectively supplied to the amplifier 4 + AI. In the above
apparatus, for example, the output of the receiver R1 is delayed by a delay circuit D (+ Dll which
is different in delay), so it is delayed by μs and ΔL1 □> Δ, and then the loudspeaker
information of the loudspeaker S is It is voiced with a phase slightly delayed from the old
information from the unit S1. For this reason, when listening at the center of both loudspeakers,
it is sensed that the virtual sound source P □ exists near the left hand. Also, for example, when
the output of the receiver Rn is delayed by the delay N path Dn, Dnn, but the delay lid Δtn, ')
Δtnn, the output of the loudspeaker SSo is delayed in phase from that of the loudspeaker S, The
middle listener will feel the sound source Pn right + eyebrow.
The output from the reception & R 2 is 1 m 1 m, and the amount of lagging of the delay circuits
D 2 and D qg Δt 7. Set Δtl + 2. The weight adjustment can be individually controlled by the
stringer T1 +% · Tn. Thus, depending on the device, the inside of the bridge, which conventionally
required a large number of loudspeakers, is prosperous with only a pair of loudspeakers, and the
wiring work and construction materials are reduced accordingly, resulting in one song of ships
and a reduction in vehicle weight. I can give to my heart. A set of loudspeakers can also be
provided as a monitor in a separate room. However, it is necessary to set the delay of each delay
circuit after installing the above-mentioned device in a predetermined bridge in 5 steps and 6
steps according to the size of the room. That is, the width shown in FIG. 2 company (4). The
relative position of the virtual sound source P unless the delay amount of each delay circuit is
also changed to 2/6 in the case of installing in a room and in the case of installing in a room (B)
of 2/3 W width with 1 yaw 1S ′ ′ specification at all It fades away. Therefore, even with a
device of the same specification, there arises a problem that many delay circuits must be adjusted
in accordance with applications. ! In the case of the same specification, the present invention
provides an apparatus which fits into a room of any size simply by adjusting one knob, which will
be described below with reference to FIG. The same reference numerals as in FIG. 1 have the
same functions. In FIG. 5, the delay circuits D1, Dll, D2, D22... DnXDnn are constituted by, for
example, analog delay circuits such as charge coupled devices (CODs), and seven retardednesses
are clock pulse dispensers. At the same time, WII is configured to be "opened" by the frequency
of clock pulses supplied from cp. Therefore, for example, increasing the clock count of the clock
pulse generation bacP reduces the delay j time of each delay (b) and shortens the distance
between virtual sound sources; Conversely, when the clock frequency is reduced, the lid delay
time. Between construction and virtual sources being extended. Produces the effect of increasing
the distance. Moreover, the relative position between virtual sound sources is similar. For this
reason, adjustment after installation can be completed in a short time with one knob, regardless
of the size of the bridge.
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