BRIEF DESCRIPTION OF THE DRAWINGS
A more complete understanding of the present embodiments and advantages thereof may be acquired by referring to the following description taken in conjunction with the accompanying drawings, in which like reference numbers indicate like features, and wherein:
FIG. 1 is a perspective view of a key attached to a removable media device;
FIG. 2 is a perspective view of a lock attached to a receptor;
FIGS. 3A-3I are schematic views of various key configurations; and
FIGS. 4A-4I are schematic views of various lock configurations.
DETAILED DESCRIPTION
For purposes of this disclosure, an information handling system may include any instrumentality or aggregate of instrumentalities operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, or utilize any form of information, intelligence, or data for business, scientific, control, or other purposes. For example, an information handling system may be a person computer, a network storage device, or any other suitable device and may vary in size, shape, performance, functionality, and price. The information handling system may include random access memory (RAM), one or more processing resources such as a central processing unit (CPU) or hardware or software control logic, ROM, and/or other types of nonvolatile memory. Additional components of the information handling system may include one or more disk drives, one or more network ports for communication with external devices as well as various input and output (I/O) devices, such as a keyboard, a mouse, and a video display. The information handling system may also include one or more buses operable to transmit communications between the various hardware components.
Shown in FIG. 1 is a perspective view of a key, which is indicated generally at 10. Key 10 is shown as integrally formed with a guide rail of a hard drive carrier. Key 10 may be attached to a hard drive or other removable media 12 via the guide rail or otherwise. In one embodiment, the key 10 is formed by machining grooves in the guide rail. Shown in FIG. 2 is a perspective view of a lock, which is indicated generally at 14. Lock 14 is shown as integrally formed with a chassis. Lock 14 is attached, either directly or indirectly, to a chassis or other receptor 16. In one embodiment, the lock 14 is formed by pushing tabs away from the chassis.
The key 10 may have any number of ridges or key teeth 18 and any number of key grooves 19. The key 10 shown in FIG. 1 has one key tooth 18 and two key grooves 19. Likewise, the lock 14 may have any number of ridges or lock teeth 20, including no lock teeth 20 at all. The lock 14a of FIG. 2 has one lock tooth 20, the lock 14b has two lock teeth 20, and the lock 14c has three lock teeth 20 (the lock teeth 20 are connected in this instance for ease of manufacture). The key 10 of FIG. 1 has a first key tooth position 22, a second key tooth position 24, and a third key tooth position 26. Likewise, the lock 14 of FIG. 2 has a first lock tooth position 28, a second lock tooth position 30, and a third lock tooth position 32.
When the removable media 12 enters the receptor 16, a back 38 of the removable media 12 is inserted into a front 40 of the receptor 16 and the removable media 12 is moved toward a back 42 of the receptor 16. When the removable media 12 enters the receptor 16, the first key tooth position 22 aligns with the first lock tooth position 28, and the term “first tooth position” could interchangeably refer to either. Likewise, the term “second tooth position” may refer to either the second key tooth position 24 or the second lock tooth position 30. Finally, the term “third tooth position” may refer to either the third key tooth position 26 or the third lock tooth position 32.
Therefore, when a key tooth 18 is present in the first key tooth position 22, the first tooth position is filled, and the key 10 will not fit within any lock 14 having a lock tooth 20 in the first lock tooth position 28. Similarly, when a key tooth 18 is present in the second key tooth position 24, the second tooth position is filled, and the key 10 will not fit within any lock 14 having a lock tooth 20 in the second lock tooth position 30. Likewise, when a key tooth 18 is present in the third key tooth position 26, the third tooth position is filled, and the key 10 will not fit within any lock 14 having a lock tooth 20 in the third lock tooth position 32.
In addition to the use of three or more tooth positions, the position of the lock 14 on the receptor 16, and a length 34 of the key grooves 19 may be used to prevent unauthorized entry of the removable media 12 into the receptor 16. A first key end or hard stop 36 at the end of the key grooves 19 will prevent the key 10 from extending past the lock 14. The hard stop 36 prevents the removable media 12 from going too far into the receptor 16, and helps to secure the removable media 12 in place. Generally, when the lock 14 is toward the back 42 of the receptor 16, as shown by locks 14a, 14b, and 14c, the key grooves 19 may be shorter, and when the lock 14 is toward the front 40 of the receptor 16, as shown by locks 14d, 14e, and 14f, the key grooves 19 are longer. When the length 34 of the key grooves 19 is large, the removable media 12 will be able to pass completely into the receptor 16, regardless of whether the lock 14 is toward the front 40 of the receptor 16 or toward the back 42 of the receptor 16. However, when the length 34 of the key grooves 19 is small, and the lock 14 is toward the back 42 of the receptor 16, the removable media 12 will only be able to partially enter the receptor 16.
With three tooth positions, and two key groove lengths 34, there are at least sixteen different keys 10. Similarly, three tooth positions and two lock positions support at least sixteen different locks 14. However, many of the keys 10 are compatible with several of the locks 14, and many of the locks 14 will accept several different keys 10. For instance, when there are no key teeth 18 present, and the length 34 is large, the key 10 will fit any lock 14. When there are no lock teeth 20 present, and the lock 14 is toward the back 42 of the receptor 16, any key 10 will fit the lock 14. It may be desirable that the key 10 fit some locks 14, while being excluded from others. For example, a first manufacturer may want to allow its removable media 12 to enter the receptors 16 of a second manufacturer and a third manufacturer, while preventing the removable media 12 of the second and third manufacturers from entering the receptors 16 of the first manufacturer. Additionally, the first manufacturer may want to prevent its removable media 12 from entering the receptors 16 of a fourth manufacturer.
There are a number of other combinations of key teeth 18 that may be assigned to various removable media 12. For example, FIG. 3A shows the first manufacturer's configuration for a single channel device may have the key tooth 18 only in the second key tooth position 24, and the length 34 of the key grooves 19 may be small. FIG. 3B shows the first manufacturer's configuration for a dual channel device may have no key teeth 18, and the length 34 of the key grooves 19 may be small. FIG. 3C shows the first manufacturer's configuration for a future removable media may have key teeth 18 in the first key tooth position 22, and the third key tooth position 26, and the length 34 of the key grooves 19 may be small.
Additional assignments may be made for the second manufacturer. For instance, the second manufacturer's configuration for a single channel device may have key teeth 18 in the first key tooth position 22, and the second key tooth position 24, and the length 34 of the key grooves 19 may be small, as shown in FIG. 3D. FIG. 3E shows the second manufacturer's configuration for a dual channel device may have the key tooth 18 only in the first key tooth position 22, and the length 34 of the key grooves 19 may be small.
Likewise, the third manufacturer may have assignments. For example, the third manufacturer's configuration for a single channel device may have key teeth 18 in the second key tooth position 24, and the third key tooth position 26, and the length 34 of the key grooves 19 may be small, as shown in FIG. 3F. FIG. 3G shows the third manufacturer's configuration for a dual channel device may have the key tooth 18 only in the third key tooth position 26 and the length 34 of the key grooves 19 may be small.
Additionally, the fourth manufacturer may be assigned certain key configurations. For instance, the fourth manufacturer's configuration for a single channel device may have the key teeth 18 in the second key tooth position 24 and the third key tooth position 26 and the length 34 of the key grooves 19 may be large, as shown in FIG. 3H. FIG. 3I shows the fourth manufacturer's configuration for a dual channel device may have key tooth 18 only in the third key tooth position 26, and the length 34 of the key grooves 19 may be large. If needed, additional assignments could be made, particularly when adding additional key teeth 18 and varying the length 34 of key grooves 19.
There are also a number of combinations of lock teeth 20 that may be assigned to various receptors 16. FIG. 4A shows the first manufacturer's configuration for a server may have lock teeth 20 in the first lock tooth position 28, and the third lock tooth position 32, and be toward the back of the receptor 16. FIG. 4B shows the first manufacturer's configuration for a storage device may have lock teeth 20 in the first lock tooth position 28, the second lock tooth position 30 and the third lock tooth position 32, and be toward the back 42 of the receptor 16. FIG. 4C shows the first manufacturer's configuration for a future receptor may have lock tooth 20 only in the second lock tooth position 30, and be toward the back 42 of the receptor 16.
The second manufacturer's configuration for a server may have lock tooth 20 only in the third lock tooth position 32, and be toward the back 42 of the receptor 16, as shown in FIG. 4D. FIG. 4E shows the second manufacturer's configuration for a storage device may have lock teeth 20 in the second lock tooth position 30, and the third lock tooth position 32, and be toward the back 42 of the receptor 16.
The third manufacturer's configuration for a server may have lock tooth 20 only in the first lock tooth position 28, and be toward the back 42 of the receptor 16, as shown in FIG. 4F. FIG. 4G shows the third manufacturer's configuration for a storage device may have lock teeth 20 in the first lock tooth position 28, and the second lock tooth position 30, and be toward the back 42 of the receptor 16.
The fourth manufacturer's configuration for a server may have lock tooth 20 only in the first lock tooth position 28, and be toward the front 40 of the receptor 16, as shown in FIG. 4H. FIG. 4I shows the fourth manufacturer's configuration for a storage device may have lock teeth 20 in the first lock tooth position 28, and the second lock tooth position 30, and be toward the front 40 of the receptor 16. If needed, additional assignments could be made, particularly when adding additional lock teeth 20, and varying the position of the lock 14.
Any given key will only fit certain locks. For example, the first manufacturer's single channel device (FIG. 3A) would fit within the first manufacturer's server (FIG. 4A), the second manufacturer's server (FIG. 4D), and the third manufacturer's server (FIG. 4F), but not the first manufacturer's storage device (FIG. 4B), the first manufacturer's future receptor (FIG. 4C), the second manufacturer's storage device (FIG. 4E), the third manufacturer's storage device (FIG. 4G), the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I). Note that the reason that the first manufacturer's single channel device would not fit within the fourth manufacturer's server is due to the hard stop 36, and not teeth.
The first manufacturer's dual channel device (FIG. 3B) would fit within the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the first manufacturer's future receptor (FIG. 4C), the second manufacturer's server (FIG. 4D), the second manufacturer's storage device (FIG. 4E), the third manufacturer's server (FIG. 4F), and the third manufacturer's storage device (FIG. 4G), but not the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I). Note that the reason that the first manufacturer's dual channel device would not fit within the fourth manufacturer's server or the fourth manufacturer's storage device is due to the hard stop 36, and not teeth.
The first manufacturer's future removable media (FIG. 3C) would fit within the first manufacturer's future receptor (FIG. 4C), but not the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the second manufacturer's server (FIG. 4D), the second manufacturer's storage device (FIG. 4E), the third manufacturer's server (FIG. 4F), the third manufacturer's storage device (FIG. 4G), the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I).
The second manufacturer's single channel device (FIG. 3D) would fit within the second manufacturer's server (FIG. 4D), but not the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the first manufacturer's future receptor (FIG. 4C), the second manufacturer's storage device (FIG. 4E), the third manufacturer's server (FIG. 4F), the third manufacturer's storage device (FIG. 4G), the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I).
The second manufacturer's dual channel device (FIG. 3E) would fit within the first manufacturer's future receptor (FIG. 4C), the second manufacturer's server (FIG. 4D), and the second manufacturer's storage device (FIG. 4E), but not within the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the third manufacturer's server (FIG. 4F), the third manufacturer's storage device (FIG. 4G), the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I).
The third manufacturer's single channel device (FIG. 3F) would fit within the third manufacturer's server (FIG. 4F), but not the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the first manufacturer's future receptor (FIG. 4C), the second manufacturer's server (FIG. 4D), the second manufacturer's storage device (FIG. 4E), the third manufacturer's storage device (FIG. 4G), the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I). Note that the reason that third manufacturer's single channel device would not fit within the fourth manufacturer's server is due to the hard stop 36, and not teeth.
The third manufacturer's dual channel device (FIG. 3G) would fit within the first manufacturer's future receptor (FIG. 4C), the third manufacturer's server (FIG. 4F), and the third manufacturer's storage device (FIG. 4G), but not the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the second manufacturer's server (FIG. 4D), the second manufacturer's storage device (FIG. 4E), the fourth manufacturer's server (FIG. 4H), or the fourth manufacturer's storage device (FIG. 4I). Note that the reason that third manufacturer's dual channel device would not fit within the fourth manufacturer's server or the fourth manufacturer's storage device is due to the hard stop 36, and not teeth.
The fourth manufacturer's single channel device (FIG. 3H) would fit within the third manufacturer's server (FIG. 4F) and the fourth manufacturer's server (FIG. 4H), but not the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the first manufacturer's future receptor (FIG. 4C), the second manufacturer's server (FIG. 4D), the second manufacturer's storage device (FIG. 4E), the third manufacturer's storage device (FIG. 4G), or the fourth manufacturer's storage device (FIG. 4I).
The fourth manufacturer's dual channel device (FIG. 3I) would fit within the first manufacturer's future receptor (FIG. 4C), the third manufacturer's server (FIG. 4F), the third manufacturer's storage device (FIG. 4G), the fourth manufacturer's server (FIG. 4H), and the fourth manufacturer's storage device (FIG. 4I), but not the first manufacturer's server (FIG. 4A), the first manufacturer's storage device (FIG. 4B), the second manufacturer's server (FIG. 4D), or the second manufacturer's storage device (FIG. 4E).
Although the present disclosure has been described in detail, it should be understood that various changes, substitutions, and alterations can be made hereto without departing from the spirit and the scope of the invention as defined by the appended claims.
Patent Application
20080013260
