Patent Application
20110090585
The present invention relates generally to a method of and apparatus for preventing data recovery from a disk drive apparatus for reading/writing information from/onto a disk-shaped storage medium (hereinafter referred to as a “disk”). Data is recorded on a recording surface that is comprised of a disk made of a stable substrate with an applied magnetic coating capable of storing recorded data and allowing said data to be written or retrieved via read/write heads. The disks usually are inside a protective case and rotate to allow the read/write heads to access data stored on the disk. The read/write heads can move back and forth to access data that is stored between near the center of the disk or near the outside edge of the disk.
A disk drive apparatus known to the inventor is depicted in
The magnetic disk drive apparatus 100 includes a magnetic head 230 for writing information onto the magnetic disk 200. The magnetic head 230 is pivotally secured on a pivot 250 via a head arm 240. The magnetic head 230 can be moved substantially in the radial direction of the magnetic disk 200 by moving the head arm 240 by using a voice coil motor 280 including a coil section 260 and a magnetic circuit 270. The spindle motor (not shown), the pivot 250 and the magnetic circuit 270 are secured to a base 290.
The magnetic disk drive apparatus 100 rotates the magnetic disk 200 counterclockwise by driving the spindle motor (not shown).
While the disk is rotating, the magnetic head 230 is moved as necessary between the outer periphery and the inner periphery of the magnetic disk 200 by pivoting the head arm 240 about the pivot 250.
The operations of the magnetic head 230, the spindle motor (not shown), the voice coil motor 280 for moving the magnetic head 230, etc., are controlled by an upper-level device (not shown). The upper-level device outputs signal for controlling the operations of the magnetic head 230, the spindle motor (not shown), etc., so as to read/write information from/onto the magnetic disk 200. When the magnetic disk drive apparatus 100 receives a read command from the upper-level device, a seek operation is performed to move the magnetic head 230 to an intended track, and information is read by the magnetic head 230 from the intended track.
Hard disk drives are devices that are used in electronic devices such as computers, music players, photo copy machines and other devices that have a need to store electronic data. A hard disk drive has the ability to store and retrieve data for long or short term usage. Data stored on a hard disk drive will remain on the hard disk even after the device has been turned off giving the ability to use it for data storage longer than the time during which the device has power applied and is in an operating state. Even if the device has been unplugged so it has no source of electricity the data will remain on the hard disk.
Prior to this method, users would need expensive tools or specialized knowledge to give 100% data security. Prior methods such as using special programs that claim to erase all of the data on a hard disk, reformatting the disk, reinstalling the operating system on the disk, deleting confidential data from the disk, hitting the disk with a hammer or even drilling holes through the disk cannot ensure data removal. There was still a chance that some data remained on the hard disk that could be recovered. Some other methods are very dangerous (such as burning at high temperatures with chemicals such as thermite).
Because data could be left on a hard disk, when said hard disk has been disposed of, data could be recovered and used against the original owner for purposes such as identity theft.
A method and apparatus for the disassembly and physical destruction of the data stored in hard disks are described. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent; however, that the present invention may be practiced without these specific details. In other instances, well-known methods of the physical destruction of data from a hard disk are available in order to avoid unnecessarily obscuring the present invention.
The user would follow these steps once the hard disk drive has been removed from the appliance that it was once part of:
The starting materials for a first embodiment for the destruction of a hard disk drive 100 are illustrated in
This embodiment describes how to disassemble the hard disk drive 100 and remove the disk platter(s) 200 from the body of the hard disk drive 200.
Place the disk drive apparatus 100 with disk drive apparatus top cover plate 110 facing up on top of a flattened cardboard box.
Using a Fastener removal tool 900 (screwdriver) with the appropriate bit remove the screws 120 securing the disk drive apparatus top cover plate 110 (
Remove the disk drive apparatus top cover plate 110.
Using a Fastener removal tool 900 with the appropriate bit remove the disk clamp screw(s) 210 that hold the disk clamp(s) 220 that secure the disk(s) 200 in place. Remove the disk(s) 200.
The remaining steps can be performed in any order and still achieve the same results.
Rub magnetic device with sufficient strength to degauss the recorded data on the surface of the disk 910 over the surfaces (both sides) of each disk 200 making sure to cover the entire surface (
Using the abrasive material 920 thoroughly abrade the entire surface of each disk platter 200 on both sides (
Deform each of the disk(s) removed so they are no longer flat. There are many ways to safely perform this step. One possible way to do this is to place one of the disk(s) 200 on the handle of the pliers 930 (
In at least some embodiments, the steps of degaussing the recording surface, abrading both sides of the data platter, and deforming or breaking the disk are performed in differing orders without departing from the scope and spirit of the disclosed embodiments. In at least one embodiment, a minimum of two of the steps of degaussing the recording surface, abrading both sides of the data platter, and deforming or breaking the disk are performed. In at least one embodiment all of the steps of degaussing the recording surface, abrading both sides of the data platter, and deforming or breaking the disk are performed.
The tools necessary for the disassembly of a hard disk drive that can be supplied to the user include, but are not limited to: Fastener removal tool(s) with the appropriate tips needed to remove the screws that hold a hard disk apparatus drive together, a magnetic device with sufficient strength to degauss the recorded data on the surface of the disk, an abrasive material and pliers.
Hardware Overview
Embodiments of the invention are not limited to any specific combination of hardware circuitry and software.
An advantage of this method is that the user of either high or low skill level can safely, easily and quickly prevent someone of either low or high skill level from recovering data that had been stored on the hard disk drive. The present invention can safely be performed inside someone's home without risk of damage or danger. There are no chemicals used in this process so there are no noxious or dangerous fumes produced. No special facilities are required to perform the method described herein nor are any special tools needed beyond those that can be provided to the user.
More particularly, one or more embodiments according to the present invention relate to a method that enables users, who would not otherwise have the ability, the ability to prevent data recovery from their disk by the disassembly of said disk and removing the magnetically recorded data from said disk.
It will be readily seen by one of ordinary skill in the art that the present invention fulfills all of the objects set forth above. After reading the foregoing specification, one of ordinary skill will be able to affect various changes, substitutions of equivalents and various other aspects of the invention as broadly disclosed herein. It is therefore intended that the protection granted hereon be limited only by the definition contained in the appended claims and equivalents thereof.
This application claims the benefit of provisional patent application Ser. No. 61/278,969 filed 2009 Oct. 14 by the present inventor, the entirety of which is incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 61278969 | Oct 2009 | US |
