STORAGE SYSTEMS WITH GO TO SLEEP ADAPTION
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Accused Products
Abstract
A non-volatile memory system goes into a low-power standby sleep mode to reduce power consumption if a host command is not received within delay period. The duration of this delay period is adjustable. In one set of embodiments, host commands can specify the delay value, the operation types to which it applies, and whether the value is power the current power session or to be used to reset a default value as well. In other aspects, the parameters related to the delay value are kept in a host resettable parameter file. In other embodiments, the memory system monitors the time between host commands and adjusts this delay automatically.
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Citations
37 Claims
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1-17. -17. (canceled)
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18. A storage device system, comprising:
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a memory device configured to operate in a standard mode or in a standby mode, wherein the memory device is configured to operate on commands in the standard mode, and the standby mode is lower in power than the standard mode; and a controller configured to; when a first command is completed in the standard mode, switch a mode of the memory device from the standard mode to the standby mode after a delay period subsequent to the completion of the first command unless a second command is received prior to an end of the delay period, wherein a duration of the delay period is adjustable; when the second command is received prior to the end of the delay period, decrease the duration of the delay period based on a first value; when the second command is received after the end of the delay period, increase the duration of the delay period based on a second value which is different from the first value; and when a command specifying a new duration is received, reset the duration to the new duration. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A machine-implemented method, comprising:
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operating a memory device in a standard mode or in a standby mode, wherein the standard mode allows the memory device to operate on commands, and the standby mode is lower in power than the standard mode; when a first command is completed in the standard mode, switching a mode of the memory device from the standard mode to the standby mode after a delay period subsequent to the completion of the first command unless a second command is received prior to an end of the delay period, wherein a duration of the delay period is adjustable; when the second command is received prior to the end of the delay period, decreasing the duration of the delay period based on a first value; when the second command is received after the end of the delay period, increasing the duration of the delay period based on a second value which is different from the first value; and when a command specifying a new duration is received, resetting the duration to the new duration. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An apparatus, comprising:
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means for operating a memory device in a standard mode or in a standby mode, wherein the standard mode allows the memory device to operate on commands, and the standby mode is lower in power than the standard mode; when a first command is completed in the standard mode, means for switching a mode of the memory device from the standard mode to the standby mode after a delay period subsequent to the completion of the first command unless a second command is received prior to an end of the delay period, wherein a duration of the delay period is adjustable; when the second command is received prior to the end of the delay period, means for decreasing the duration of the delay period based on a first value; when the second command is received after the end of the delay period, means for increasing the duration of the delay period based on a second value which is different from the first value; and when a command specifying a new duration is received, means for resetting the duration to the new duration. - View Dependent Claims (36, 37)
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Specification