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Disk Scanner/Player
For all sorts of disks, from ancient 78-RPM audio to modern multi-layer video. | |
A number of folks will probably note that aspects of this
Idea have been presented here before. I am not aware,
however, that all the elements have been combined as
presented now....
You feed the disk into the Scanner/Player, and it scans
the
disk with an appropriately high-resolution "reader".
The
overall machine may make an initial partial scan just to
determine the type of data on the disk, in order to
decide
what value of "appropriate resolution" to employ.
That is, if reading an vinyl "LP" record, in which the
wavy
track-information is easily visible to the naked eye, a
much lower-resolution scan is entirely appropriate, when
compared to what is appropriate to scan a Blu-Ray disk.
The Scanner/Player should have two scanning devices,
one
for each side of the disk. Or it should have some means
to flip the disk internally, but I think just having 2
scanners is simpler.
It may also be better if the scanners did not move.
Imagine an "edge-grabber" that holds the disk steady
while
on a carriage that smoothly passes through the
Scanner/Player. Activate the unit to extend the
carriage;
place the disk, then activate the unit to scan the carried
disk (multiple times if necessary; see below). At the end
of the process the carriage is in the extended position so
the disk can be removed, no longer needed. There are
no
other moving parts, except with respect to focus-control
(see below).
Note that since any scanner uses focused light, it should
be
possible to make multiple and different scans of a disk
that has multiple layers, by simply focusing on each
layer,
one after another (ordinary DVDs can often have 2 layers
of data on each side, and I don't recall how much that
was
extended for things like HD-DVDs, but I do know that at
least 10 layers per side has been made to work in the
labs).
OK, so now all the data has been scanned into the
Memory
System of the overall Scanner/Player. I will repeat that:
All the Disk's Data Is Now In a Memory-Image form.
So, enter the Software. Its algorithm reads data from
the
Memory Image exactly as if a physical device (like a
record
needle) was "reading" a rotating disk. The data then
gets
processed appropriately to be output as audio and/or
video. That's all.
RCA CED video disks
http://en.wikipedia...nce_Electronic_Disc
For anyone interested. This technology went head-to-head against LaserDisc tech, and lost (mostly because the disks could wear out while LaserDiscs didn't). This Scanner/Player device might be able to scan CED data, along with all those other types already mentioned. [Vernon, Nov 22 2013]
http://www.dust-digital.com/feaster/
[pocmloc, Nov 22 2013]
Another take
Laser_20scanned_20CD
Hold the disk still, and move the light by optics [neelandan, Nov 22 2013]
Prius Soundwagon CD player
Prius_20Soundwagon_20CD_20player
And Another [csea, Nov 22 2013]
[link]
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Are things like DVD data tracks visible in ordinary light or are they too small? |
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I know that non-contact LP players currently on the market won't play LPs that are unusual colours or reflectiveness. How is this handled? |
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What about wax cylinders? |
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[pocmloc], DVD tracks are read with red laser light.
Blu-Ray disks are read with blue laser light. (CDs
and 12-inch LaserDiscs are normally read with
infrared-laser light, if I recall right.) A high-res
scanner using violet light should be able to
adequately magnify anything currently available.
Also, since colors are not involved in how the data
is stored,
monochrome (single-frequency violet light)
scanning should be quite sufficient. |
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Regarding LPs and unusual colors/reflectances (a
problem that may apply to the unique RCA "CED"
video-disk technology),
this might not matter too much when the
frequency of the light used is SO much finer than
the data-resolution on the disk. There is also the
fact that scanner tech usually illuminates quite a
bit of substance at once, not just a single spot like
a laser-reader of a DVD. The broad illumination
may all by itself solve the "unusual reflectance"
problem. |
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As for wax cylinders, duh, they are not disks, so
NO, of course. Not with this DISK Scanner/Player. |
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Well really, what kind of a "media player" is this if it won't even handle wax cylinders. I won't buy such a compromised product thank you very much! |
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