Abstract: Methods and apparatus for power management in data storage devices are provided. One such data storage device (DSD) includes a non-volatile memory (NVM), a set of hardware processing engines, and a power sensor to detect a total power consumption of the set of hardware processing engines. A processor is configured to determine a power-per-processing event value for each of the set of processing engines based on total power consumption measurements, then control delivery of power to the processing engines based on the power-per-processing event values in accordance with a power budget. In some examples, the DSD employs a least-squares procedure to estimate the power-per-processing event values so the values can be determined without needing to measure the individual power consumption of the processing engines. Exemplary processing engines include a Read engine, a Write engine, etc. A recursive least-squares update procedure is also described.

Abstract: Methods and apparatus for power management in data storage devices are provided. One such data storage device (DSD) includes a non-volatile memory (NVM), a set of hardware processing engines, and a power sensor to measure a total power consumption of the set of hardware processing engines. A processor is configured to determine a power-per-processing event value for each of the set of processing engines based on total power consumption measurements, then control delivery of power to the processing engines based on the power-per-processing event values in accordance with a power budget. In some examples, the DSD employs a least-squares procedure to estimate the power-per-processing event values so the values can be determined without needing to measure the individual power consumption of the processing engines. Procedures are also provided for assessing the accuracy of the power-per-processing event values and for controlling further operations based on the assessment.

Abstract: A data storage device and method for providing an adaptive data path are disclosed. In one embodiment, a data storage device is in communication with a host comprising a first processor (e.g., a graphics processing unit (GPU)), a second processor (e.g., a central processing unit (CPU)), and a queue. The data storage device chooses a data path to use to communicate with the queue based on whether the queue is associated with the first processor or with the second processor. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.

Abstract: The present disclosure generally relates partial speed changes to improve in-order data transfer. Rather than determining an ECC decoder on a first available decoder basis, the ECC decoder may be based on the ECC decoder level. A memory device will have at least one FMU that has a syndrome weight (SW). The disclosure proposes assigning FMU's based on the SW rate. At the time the command is read, the data storage device determines which level of decoder will be assigned to the FMU. The determination will then be checked according to different system environment parameters to maintain performance or reduce power consumption. The arrangement allows a more flexible system design that can adapt according to the current system status.

Abstract: The present disclosure generally relates to improving adaptive tuning of different clock rates of a memory device. Rather than clock rates only being determined off of one parameter such as workload, the clock rates now will be determined using multiple parameters. The tuning may be based on system parameters to allow the system to withstand challenges that arise during the operation. The clock frequency table is maintained in the device controller. The table holds the clock frequency of each component. The disclosure proposes modifying the table according to different system environment parameters to maintain performance or reduce power consumption. Adaptive tuning allows a more flexible system design that can adapt according to the current system status. Adaptive tuning also reduces peak power consumption, improves performance, and better quality of service (QoS) compatibility characteristics.

Abstract: Apparatuses and methods of directly accessing a memory space of a storage device by a host are provided. In one embodiment, a method of driverless access of a non-volatile memory of a non-volatile memory device by a host includes initializing a PCIe memory space mapping a portion of the non-volatile memory of the non-volatile memory device to a host memory space. The non-volatile memory is mapped through a PCIe link between the host and the non-volatile memory device. Load/store commands are sent to the PCIe memory space for driverless access. The method further includes negotiating an alignment size of the minimum transaction packet size to complete the load/store commands.

Abstract: A data storage device includes a memory device and a controller coupled to the memory device. The controller is configured to compare a first copy of a boot partition to a second copy of the boot partition. The first copy of the boot partition and the second copy of the boot partition each comprises a same number of a plurality of boot chunks. The boot partition corresponds to data of a boot operation of a host device. The controller is further configured to mark one or more of the compared boot chunks that equals or exceeds a similarity threshold and update a reliability index based on the marking. Based on the marking and the reliability index, the controller may increase or decrease an amount of error correction needed for the boot data.

Abstract: A method for controlling operation of an agricultural machine and system thereof are disclosed. The method may comprise providing a portable device that has an input device, a processing unit, a storage unit, an output device, and a transceiver device configured for wireless data transmission; receiving a voice control command over a microphone device of the input device of the portable device; determining command text data from the voice control command by processing the voice control command by a speech recognition application running on the processing unit of the portable device; providing machine control signals assigned to a machine control function in a control device of an agricultural machine located remotely from the portable device; and controlling the operation of the agricultural machine according to the machine control signals.

Abstract: A method for controlling operation of an agricultural machine and system thereof are disclosed. The method may comprise providing a portable device that has an input device, a processing unit, a storage unit, an output device, and a transceiver device configured for wireless data transmission; receiving a voice control command over a microphone device of the input device of the portable device; determining command text data from the voice control command by processing the voice control command by a speech recognition application running on the processing unit of the portable device; providing machine control signals assigned to a machine control function in a control device of an agricultural machine located remotely from the portable device; and controlling the operation of the agricultural machine according to the machine control signals.

Abstract: A sampling rate for extracting information encoded on an optical disk is determined. First and second instances of a signal representing data encoded on the disk is detected, from which a disk rotation speed is determined. Based on the disk rotation speed, a sampling rate is determined.

Abstract: A sampling rate for extracting information encoded on an optical disk is determined. First and second instances of a signal representing data encoded on the disk is detected, from which a disk rotation speed is determined. Based on the disk rotation speed, a sampling rate is determined.