1. A folding knife including:
an elongate blade having a free end and an opposite handle mounting end, the blade defining a longitudinal axis which extends between said ends, the blade defining a cam-receiving aperture having a generally circular profile and a blade notch which is disposed adjacent to and which opens into the cam-receiving aperture;
an elongate handle having a free end and an opposite blade mounting end, the handle defining a longitudinal axis which extends between said ends, the handle including a locking formation for releasable engagement with the blade notch of the blade;
a disc-shaped cam having a generally circular peripheral outer edge, which is pivotally mounted to the handle in an arrangement permitting pivotal displacement of the cam relative to the handle about a pivot axis which is offset from a centre of the cam, the cam being received within the cam-receiving aperture of the blade in an arrangement permitting rotation of the cam within the cam-receiving aperture, thereby providing for mounting of the blade to the cam and rotational displacement of the blade relative to the handle between a folded condition wherein the blade is folded onto the handle and an extended condition wherein the longitudinal axes of the blade and the handle are substantially aligned, the cam defining a cam notch in which the locking formation of the handle can be received, thereby permitting linear displacement of the cam and the blade relative to the handle when the locking formation is received in the cam notch;
a cam mechanism for regulating said linear displacement of the cam relative to the handle, the cam mechanism including biasing means for biasing the cam and thereby the blade mounted thereto, in a predetermined linear direction relative to the handle; and an abutment formation which is fixed to the handle against which the biasing means abuts and is placed under tension when the cam is displaced in said predetermined linear direction,
the configuration of the cam and the relative positions of the blade notch and the locking formation being such that when the blade is in the extended position, the locking formation is releasably captured in the blade notch, with a peripheral edge of the cam blocking the release of the locking formation, displacement of the blade into its folded condition from its extended condition, being achieved by exerting a force on the blade against the force of the biasing means so as to displace the blade notch in said linear direction away from the locking formation while rotating the blade relative to the cam so as to bring the cam notch into register with the blade notch thereby permitting the locking formation to be received within the cam notch so as to release the locking formation from the blade notch and permit rotation of the blade relative to the cam.
2. The folding knife as claimed in claim 1, wherein the handle includes a stop formation against which the blade abuts in its extended condition and in its folded condition, the stop formation acting as a stop for preventing further rotational displacement of the blade beyond its extended condition when displacing the blade from its folded condition and for preventing further rotational displacement of the blade beyond its folded condition when displacing the blade from its extended condition.
3. The folding knife as claimed in claim 1, wherein the blade defines a second blade notch in which the stop formation is received when the blade is in its extended condition.
4. The folding knife as claimed in claim 3, wherein the second blade notch is defined in an edge of the handle mounting end of the blade.
5. The folding knife as claimed in claim 1, wherein the blade defines a third blade notch which is disposed adjacent to and which opens into the cam-receiving aperture, the third blade notch being disposed substantially diametrically opposite the blade notch such that the locking formation is releasably captured in the third blade notch when the blade is in the folded condition.
6. The folding knife as claimed in claim 2, wherein the locking formation and the stop formation of the handle are positioned relative to one another such the locking formation is located relatively closer to the longitudinal axis of the handle than the stop formation, thereby providing for the position of the locking formation and the stop formation to be laterally offset from one another.
7. The folding knife as claimed in claim 2, wherein the locking formation is positioned relatively closer to the blade mounting end of the handle than the stop formation, thereby providing for the positions of the locking formation and the stop formation to be longitudinally offset.
8. The folding knife as claimed in claim 1, which includes a pair of covers, each cover of the pair of covers being disposed at a side of the cam-receiving aperture for closing off the side thereby retaining and covering the cam and the cam mechanism within the cam-receiving aperture.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for selectively applying on-die termination, comprising:
sending a memory access command concurrently to a number of ranks of memory devices corresponding to a memory access operation, the memory access command directed to a target rank to execute the command;
triggering one or more non-target ranks of the number of ranks to change an on-die termination (ODT) setting for a duration of the memory access operation; and
selecting the target rank to execute the memory access operation.
2. The method of claim 1, wherein sending the memory access command comprises sending a read command, and wherein triggering the one or more non-target ranks to change the ODT setting comprises triggering the a non-target rank to engage ODT.
3. The method of claim 1, wherein sending the memory access command comprises sending a write command, and wherein triggering the one or more non-target ranks to change the ODT setting comprises triggering the target rank and at least one non-target rank to engage ODT.
4. The method of claim 1, wherein sending the memory access command comprises sending the memory access command from a memory controller.
5. The method of claim 1, wherein sending the memory access command comprises sending multiple sequential commands to generate the memory access operation.
6. The method of claim 5, wherein the triggering further comprises sending a first command indicating the memory access operation and a second command with a column address selection for the memory access operation, where the sequence of the first and second commands indicates an ODT setting to the ranks.
7. The method of claim 6, wherein the memory access command comprises a read command, and further wherein sending the second command without selecting the one or more non-target ranks triggers the one or more non-target ranks to engage ODT for the read operation.
8. The method of claim 6, wherein the memory access command comprises a write command, and further wherein sending the first command triggers the one or more non-target ranks to engage ODT for the write operation.
9. The method of claim 1, wherein triggering the multiple ranks to change the ODT setting comprises triggering the one or more non-target ranks to change the ODT setting to one of multiple values of on-die termination resistance.
10. The method of claim 1, wherein selecting the target rank comprises selecting the target rank with an enable signal, and not selecting the non-target ranks with the enable signal.
11. The method of claim 10, wherein selecting the target rank with the enable signal comprises selecting the target rank with a chip select signal.
12. A memory controller device comprising:
hardware connectors to couple to a multi-device package having multiple memory devices organized as a plurality of ranks; and
logic to send a memory access command concurrently to multiple of the ranks of memory devices corresponding to a memory access operation, the memory access command directed to a target rank to execute the command; trigger one or more non-target ranks to change an on-die termination (ODT) setting for a duration of the memory access operation; and select the target rank to execute the memory access command with ODT at the changed ODT setting.
13. The memory controller of claim 12, wherein the memory controller device is part of a host processor subsystem.
14. The memory controller of claim 12, wherein the logic is to send a read command and trigger one or more non-target ranks to engage ODT, or to send a write command and trigger the target rank and one or more non-target ranks to engage ODT.
15. The memory controller of claim 12, wherein the logic is to send multiple sequential commands to generate the memory access operation.
16. The memory controller of claim 15, further comprising the logic to send a first command indicating the memory access operation and a second command with a column address selection for the memory access command directly after the first command, wherein the sequence of the first and second commands is to trigger the one or more non-target ranks to engage ODT.
17. The memory controller of claim 15, wherein the logic is to select the target rank with the second command and not select the one or more non-target ranks with the second command.
18. The memory controller of claim 12, wherein the logic is to select the target rank with a chip select signal, and not select the one or more non-target ranks with the chip select signal.
19. An electronic device with a memory subsystem, comprising:
a multi-device package having multiple memory devices organized as a plurality of ranks; and
a memory controller including hardware connectors to couple to the multi-device package, and logic to send a memory access command concurrently to multiple of the ranks of memory devices corresponding to a memory access operation, the memory access command directed to a target rank to execute the command; trigger one or more non-target ranks to change an on-die termination (ODT) setting for a duration of the memory access operation; and select the target rank to execute the memory access command with ODT at the changed ODT setting; and
a touchscreen display coupled to generate a display based on data accessed from the memory devices.
20. The electronic device of claim 19, wherein the logic is to send a read command and trigger one or more non-target ranks to engage ODT, or to send a write command and trigger the target rank and one or more non-target ranks to engage ODT.
21. The electronic device of claim 19, wherein the logic is to send multiple sequential commands to generate the memory access operation.
22. The electronic device of claim 21, further comprising the logic to send a first command indicating the memory access operation and a second command with a column address selection for the memory access command, wherein the sequence of the first and second commands is to trigger the one or more non-target ranks to engage ODT.
23. The electronic device of claim 21, wherein the logic is to select the target rank with the second command and not select the one or more non-target ranks with the second command.
24. The electronic device of claim 19, wherein the logic is to select the target rank with an enable signal, and not select the one or more non-target ranks with the enable signal.