FR2842015A1 - Magnetic or optical data storage disk with physical separation of read and write drives and heads, uses two independent arms carrying read or write heads running over same surface of disk - Google Patents

Abstract

The simultaneous read-write capability is provided by dual arms (4) carrying read or write heads (2a,2b) over the surface of a magnetic or optical disk (1). The arms and their drives are those used in conventional hard disk or Compact Disk devices. Each arm has its own motor and drive unit (3).

Description

Description

  The device is based and presented on existing products but different from them! It is perfectly scalable (modular) for other existing and future reading and recording systems ...

  The device can be used in all fields of electronics and IT, requiring the storage and reading of information simultaneously.

  This device may have the appellation or name "RWS".

  Description of a current system not using the

  device: A "current hard disk" (see Figure 1) for desktop computer, is simplified, circular disks (l) capable of memorizing information by means of heads

  recording (2a) activated by a motor (3).

  As for the reading, it is carried out by other so-called reading heads (2b) mounted on the same arm (4) next to the recording heads (2a) which both together are activated by the same motor (3) .

  By consequence, reading and writing being linked physically by the arm (4) one or the other of the operations (reading / writing) can therefore only be done sequentially (in turn) and never simultaneously , whether on a track or the entire disc.

  In other words, when you save a document written on a desktop computer, the disc goes into the recording phase, and therefore cannot read during this time. The claimed device allows simultaneously "at the same time" to save your document but also at this same time, to read a

other document.

  The same goes for any other storage system examples: flexible discs, burners of all types such as, CDROM, CDRW, DVD, DVDRW etc. who can use the

claimed device.

  Fields of application and advantages of the Device Let’s imagine a current recorder for TV (video recorder with hard disks), the latter can only perform one single action at a time "T", reading or

the record.

  The invented device therefore allows these two operations to be executed simultaneously, because it integrates two complete devices and each physically independent of the other because having its own motor (3) arms (4) and

  heads (2a, 2b) specialized in writing and (and / or) in reading. Note, the characteristic angle of the arms (4) (Figure 2), in order to implant 2 systems against 1 (Figure 1). This angle, necessary in a current system, will not be in a new storage concept.

  Following the example above, it becomes easy to resume playing a movie / report at its beginning, even if it is being recorded, because the play head is -2

  will position in the right place, without in any way whatsoever, disturbing the storage head which it will continue in all peace, to carry out its recording.

  Thus a spectator arriving at 9:30 pm, will be able to see a film / report started at 8:45 pm by positioning the read head (2b) at the start. Better it can skip a few steps (passages) and return in real time (in phase) with the current broadcast. Finally, through this system, he can record in

  loop, so endless, so this same spectator will no longer be linked to the time that he can go back for example from 5:00 ... 8:00 hours etc. previously, depending on the storage capacity of the support (1).

  Many other applications are applicable to the device:

  video surveillance, play-back, storage for professional IT and general public etc ...

  In IT, files and / or programs can be read without interrupting the recording of large files in

  downloading (computer data, videos and / or sound recordings for example ...) or even, the files being recorded can be checked simultaneously by the read heads (2b), and have errors corrected if necessary.

  This system will therefore undoubtedly save precious time in processing information and will contribute to improving its intrinsic quality.

  Advantages: Gain in processing / storage speed, better

  reliability and greater endurance of storage systems, without significant increase in the volume and cost of current and future equipment.

  NB-a-: the magnetic support is given as an example in order to simplify the demonstration, but any other support

  CDROM, optical CDRW etc. can receive the device, it therefore relates to all types of physical information storage media.

  NB-b-: The types of flat or niche supports (1) or magnetic heads, 2a, 2b), LASER ... or even motors (3) and the surrounding electronics, are not the subject of the claim. -3

Claims (1)

claims   -1- Device allowing simultaneously recording and reading of computer data of all types (video, audio, documents, photos etc.) on magnetic and / or optical media (1) characterized by the multiplication of motors (3) actuating the arms (4) and heads (2a, 2b). Each of the "motor, arms, heads" blocks can be assigned a function (temporary or permanent), either writing or reading. -2Device according to claim -1- characterized by   (and according to needs) the possibility for global storage electronics, to dedicate the function of one or multiple devices <motor, arms and heads "sometimes in reading and sometimes in writing in a partial or global way compared to (x) support (s).   -3- Device according to any one of the preceding claims, characterized in that all the elements <motor, arms and heads "can also and if necessary, move on several axes (example disc with niche surface instead of a flat surface).   -4- Device characterized according to the preceding claims, in that it applies to the non-exhaustive examples mentioned above in the description, or even to all mobile mechanical systems, dedicated to recording information, via heads ( 2a> 2b) ordered by   motors (3), arms (4) and supports (1).