Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal processing for controlling recording light...
Reexamination Certificate
1999-09-27
2001-11-27
Huber, Paul W. (Department: 2651)
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal processing for controlling recording light...
C369S059240, C369S124010, C369S275300
Reexamination Certificate
active
06324143
ABSTRACT:
This application is a 371 of PCT/JP98/01213, filed Mar. 20, 1998.
1. Technological Field
Today there is no circuit technology for multisignal in multiple notation. It is true that conventional binary technology and relating microcomputer technology can be applied to multi-notation multisignal too, but the result is far from satisfaction.
As the binary recording system is on the presence/absence of 1(one), even a small quantity of data requires a large recording space. For this reason, it has often happened recently that memory capacity really runs short.
Therefore, the present invention intends to provide a multisignal recording system which enables a larger memory capacity and yet requires a space of almost the same size as required in the conventional system.
This invention relates to a method of producing various kinds of memory points to record digital or analog signals, each point expressing a different meaning according to a certain rule.
This method has had no comparable one up to now, so a particular technology and hardware components to cope with this method, such as a memory unit for recording multisignal, etc. have not yet been developed.
2. Background Technology
At present, recording media like magnetic tapes and disks, optical disks, etc. are all prepared to record signals with 0's and 1's in the binary system.
Therefore, to deal with such a large amount of data as the multisignal system is expected to treat, the binary recording system needs a very large amount of memory medium, as the recording operation is repeated over and over again. But the size of a recording medium(tape, disk, etc.) has its own limit, and so does its recording space.
For example, to put into practice the code transmission system which I have applied for its patent in 1989, or any other multisignal system in future, there can be no other choice for the time being than spending plenty of binary memories(magnetic tapes, floppy disks, or optical disks, etc.), using today's microcomputers or personal computers.
Though there is a growing need today to record a large quantity of data, recording capacity of media is getting relatively smaller. Sometimes recording is really impossible because of the shortage of the memory capacity.
For the time being, there is no other way of recording than using the presence/absence of something according to the binary system: using that of a hole in case of an old type of memory, a punch tape; using that of a single kind of magnetic point or optical dot in case of conventional memories(i.e. a magnetic tape, a magnetic floppy disk, an optical disk, etc.).
Therefore, the conventional recording system can hardly record a large amount of various complicated phenomena of today. Or if can, a very large quantity of memories are needed. This makes a big problem.
The recording cost has a great influence on marketability of this method. While the binary system appends a large quantity of magnetic tapes, disks, cards, etc., to record signals, the multisignal recording system needs relatively small quantity of them and their materials. So when this method is employed, the recording cost will be reduced greatly.
In the determination of the writing/reading cost, recording density plays an important role. As the multisignal method of this invention has high recording density by nature, it is no wonder that the cost is low.
Computer systems are expected to operate at high speed. This method can increase the speed because of multisignal.
This method makes it possible to record signals in diverse tracks, i.e. multichannels, if a high recording speed is not necessarily desired.
In this way, this invention provides low cost, high density, high speed, and multichannels in data recording, as a result of using various magnetic or optical factors, making it possible to record, recognize, and read them out, and thus taking the place of the conventional recording method based on only the presence/absence of a hole, a magnetic point, or an optical dot, etc. It is also an aim of this invention to provide a plain method of memory correction.
DISCLOSURE OF INVENTION
Factors to be used as recording signals are strength, size, shape, etc. of magnetism in case of magnetic tapes and disks, and size, shape, etc. of an optical mark in case of optical disks. By using such factors as signals, it has become possible for one memory point to represent a plural value. In this invention, one of the signals representing not only 1 but also any particular plural numeral is produced at a memory point instead of 1 in the binary system by a recorder, and digital or analog values thus recorded are read out by an extractor.
It is also possible to record and extract a plurality of blocks, each composed of such memory points.
In other words, this invention intends to solve the aforesaid problems by choosing some signals of various factors and giving a plural meaning to each of the signals prior to the recording, and making a memory point in which one of the signals is recorded a recording unit.
In order to make a single memory point possible to record a plural value, each of them having a special meaning at a particular recording, it is necessary to digitize or analogize factors of magnetism or laser, like its intensity, shape, etc., so that each of the factors can be recorded and extracted.
The low recording cost means high marketability. This invention can be applied to conventional magnetic tapes, disks, and cards as well which are now widely used and will be used more widely in future.
The recording density in this invention is very high by its nature, as a single memory point can stand for a plural meaning.
As for the processing speed, this invention doesn't need to move the head so frequently as the binary system does, for this method uses multisignal and each of them out, and correction can be achieved easily.
It is also possible in this invention to combine two or more memory points together, and to record or extract them at one time. That enables this method to record signals in diverse tracks.
The present invention is the method to achieve the abovementioned purposes satisfactorily.
REFERENCES:
patent: 03-159439 (1991-09-01), None
patent: 05-266482 (1993-10-01), None
patent: 06-282943 (1994-10-01), None
Huber Paul W.
Taiyo, Nakajima & Kato
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