JPS5447601

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DESCRIPTION JPS5447601
Specification 1, Title of the Invention 2, 411 F Claims A plurality of strip-like first transparent
electrodes are formed on a display surface of a visual display device such as a cathode ray tube,
spaced apart by a constant distance, and the first transparent electrode A plurality of strip-like
second transparent electrodes are arranged in a grid shape with the first transparent electrode
without contacting the first transparent electrode, and each of the intersections formed by the
first and second transparent electrodes By closing a desired intersection point with a human
body or a conductive object and inputting position information signals of the closed intersection
point from the first or second transparent electrode to the visual display device, two on the
display surface A two-dimensional positional information input device characterized in that
dimensional positional information is displayed on the display surface.
Two-dimensional position information input device
3. Detailed Description of the Invention The present invention relates to a two-dimensional
position information input device, which can easily and surely input two-dimensional position
information such as sound image localization position at the time of mixing of multichannel
audio signals, And it aims at providing an input device which can be displayed. Conventionally,
when mixing multi-channel sound sources into, for example, 4 channels, which sound source is
localized at which position in the 4 channel sound field is a 1-axis 4-station variable resistor
called panpot while the mixer is aurally monitoring The mixing amount corresponding to the
sound source localization set using is given to each of the 4 channels. However, according to this
conventional method, the sound image localization is set by the mixer because of auditory sense,
so that the sound image localization position can not be objectively grasped. Therefore, a device
has been devised that performs mixing while displaying position information of the panpot on
the cathode ray tube at all times and visually confirming it, but the panpot, ie the operation part
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and the cathode ray tube, ie the position display part are still separated. Also requires skill. It was
not yet fully satisfactory. After that, what was devised to be able to set the position directly on
the screen of the CRT display is the light ven used in Graphite EndPage: 1-minal that is
conventionally used in computer terminals, but this is also a device It was a big loss, it was cheap,
and it was expensive. Furthermore, having to use Light Ben for inputting position information has
the disadvantage that the position of the position information can only be set at one place at a
time, so that the hands of the mixer can not be turned around for the operation of other volume
controllers. The The present invention eliminates the above-mentioned drawbacks, and one
embodiment will be described below with reference to FIGS. 1 to 5. FIG. 1 shows a schematic
perspective view of an example of a mixing console using multiple devices according to the
present invention. In the figure, 1 is a mixing level display meter unit for monitoring the mixing
level, and 2 is a mixing level operation unit, which sets the total amount of multi-channel audio
signals to be mixed. A device 3 of the present invention is shown in FIG. In FIG. 2, 4 is a Braun
tube, and a transparent electrostatic shield mylar 5 is formed on the surface thereof. Reference
numeral 6 denotes transparent grid electrodes arranged vertically and horizontally as will be
described later, which form X address lines and X address lines which are respectively insulated
vertically and horizontally in a grid form. FIG. 18 is a partially enlarged perspective view of an
embodiment of a transparent grid-like electrode that constitutes the main part of the present
invention.
In the figure, reference numeral 7 denotes a transparent mylar pace, on the surface of which a
plurality of strip-like metal electrodes 8 are formed parallel to the longitudinal direction and
spaced apart by a constant distance and formed by etching after vacuum evaporation. Since the
thickness of the metal electrode 8 is extremely thin, it is almost transparent. Moreover, the
selection of the material of the metal to vapor-deposit is using the thing with high transparency
in thin layer state. A rectangular insulating layer 9 is oriented such that its longitudinal direction
is perpendicular to the longitudinal direction of the metal electrode 8, and a plurality of
insulating layers are formed on the metal electrode 8 and the transparent mylar base 7 at regular
intervals. It is very thin coated on the exposed part and silk-printed using a transparent
insulation. Another transparent band-shaped metal electrode 10 is formed on the transparent
insulating layer 9. Accordingly, the metal electrodes 8 and 10 are arranged in a lattice shape
orthogonal to each other to form the vertical and horizontal X address lines and the X address
lines, that is, the grid-like electrodes 6, which will be described with reference to FIG. Insulating
layer 9 for convenience. Although both the metal electrodes 8 and 10 are illustrated to be
extremely thick, they are actually formed extremely thin. Next, to explain the operation principle
of the device of the present invention, FIG. 4 is an enlarged side view of the portion of the
exposed electrode shown by the broken line 11 in FIG. 3 and FIG. 5 is a block diagram of one
embodiment of the device of the present invention. Show. In FIG. 4, the same parts as in FIG. 3
are given the same reference numerals. In FIG. 4, the electrode 8 is connected to the input circuit
side, and is always clamped to the ground potential (logic 10 ′ ′) with a constant input
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impedance. On the other hand, the potential of logic "1" is given to the electrode 10
intermittently by a predetermined circuit (not shown) at a fixed cycle. In this state, when the
fingertip 12 touches the electrodes 8 and 10, the contact of the electrode 11 is closed via the
resistance r of the fingertip only when the potential of logic 1 ′ is applied to the electrode
10. The potential is logic 91 ". Here, as shown in FIG. 5, one of the X and X address lines of the
grid electrode 6 is connected to each of the terminals BO to Bn of the waveform shaping circuit
and the address decoder 13, and the other is connected to the interface circuit 15. Terminal A. -A
terminal respectively connected to -An. A live voltage corresponding to the logic 11 'is
sequentially supplied and scanned. Now, assuming that the electrode portion 11 is at the position
shown in FIG. 5, the position information corresponding to the electrode portion 11 is X of An
and Bn. It becomes Y address information. That is, only the potential of the terminal Bn of the
waveform shaping circuit and the address decoder 13 is the logic 11g at the time of voltage
output of the logic '1' of the terminal An of the interface circuit 15, this voltage is converted to
binary code It is led to the interface circuit 15 via the address bus 14.
An and B's X, Y address information from the interface circuit 15 is supplied to the cathode ray
tube terminal and the central processing unit (cpU) 7 via the address line 16, while the data is
input to the cathode ray tube via the data bus 17. EndPage: 2 In this manner, the position
corresponding to the contact point of the grid-like electrodes of the Y address and the X address
set in FIG. At the same time, for example, in a 4-channel sound field, a sound image by multichannel sound sources is localized in a known method at a position corresponding to the display
position of the CRT. When the device of the present invention is applied to sound image
localization in a 4-channel sound display, it is sufficient if the two-dimensional position resolution
is at most 64 divisions (6 bits) for both XtY address lines, and transparent grid electrodes Design
is easy. In addition, since the device of the present invention can obtain position information with
high resolution by electrode design, it can be applied to a calligraphy trainer and a field of a
video game apparatus etc. using conductive lines. Furthermore, although a Braun tube was used
as a display means of position information, it is needless to say that a plasma display panel, a
liquid crystal or other visual display device can be used. As described above, in the twodimensional position information input device according to the present invention, a plurality of
strip-shaped first transparent electrodes are formed on the display surface of a visual display
device such as a Braun tube at regular intervals. A plurality of strip-like second transparent
electrodes are disposed so as to form a grid with the first transparent electrode without being in
contact with the transparent electrode, and the intersections formed by the first and second
transparent electrodes Two-dimensional position on the display surface by closing a desired
intersection point with a human body or a conductive object and inputting position information
signal of the closed intersection point from the first or second transparent electrode to the visual
display device. Since the information is displayed on the display surface, desired two-dimensional
position information on the display surface can be objectively grasped, and a plurality of twodimensional position information can be simultaneously input and displayed. Write information
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when entering information The operability of other operation units operated in parallel with this
information input can be improved as compared with the case of using a light source, and the
structure of the entire device is simplified as compared with the case where a light pen is used to
input two-dimensional position information. It is preferable to apply to an apparatus for setting a
desired sound image localization position of a mixer from a multichannel sound source, in
particular, at low cost, and further, by the design of the first and second transparent electrodes.
Since it is possible to obtain two-dimensional position information of resolution, an inexpensive
two-dimensional position information input device (for example, calligraphy trainer) at a CRT
terminal in a microcomputer.
Can be applied to video game devices etc.)
4. Brief description of the drawings FIG. 1 is a multi-channel Nermicki using the device of the
present invention. FIG. 2 is a schematic perspective view of an example of a single console, FIG. 2
is a view for explaining the structure of an embodiment of the device of the present invention,
and FIG. 3 is a partially enlarged perspective view of an embodiment of the main part of the
device of the present invention; 4 is a partially enlarged side view of FIG. 3, and FIG. 5 is a block
diagram of an embodiment of the device of the present invention. 3 ... this invention device, 4 ...
Braun tube, 5 ... Transparent electrostatic shield mylar, 6 ... Transparent grid-like electrode, 8 °
10 ° transparent metal electrode, 9 ... Insulating layer. Patent applicant Nippon Victor Ltd.
Attorney Attorney Ito Tadahiko EndPage: ３
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