A storage device, including a printed circuit board including a connector including a plurality of pins capable of being coupled to an external host device, a controller socket, a first slot, a second slot, a third slot, and a fourth slot; a first universal flash storage (UFS) device, a second UFS device, a third UFS device, and a fourth UFS device, wherein each UFS device of the first to fourth UFS devices is removably installed in a corresponding slot of the first to fourth slots; and a storage controller mounted in the controller socket, and configured to control the first to fourth UFS devices, wherein the first UFS device and the second UFS device are configured to communicate with the storage controller through a first channel, and the third UFS device and the fourth UFS device are configured to communicate with the storage controller through a second channel

Disclosed embodiments include an electronic device having a write-once memory (WOM) and a memory controller. The memory controller includes a host interface receiving a data word including first and second symbols, each having at least two bits, a WOM controller that encodes the first and second symbols and outputs a WOM-encoded word including first and second WOM codes corresponding to the first and second symbols, respectively, an error correction code (ECC) controller that encodes the WOM-encoded word and outputs an ECC-encoded word including the first and second WOM codes and a first set of ECC bits corresponding to a first write operation, and a memory device interface that writes the ECC-encoded word the WOM device in the first write operation. Each of the first and second WOM codes include at least three bits with at least two of the at least three bits having the same logic value.

Disclosed embodiments include an electronic device having a write-once memory (WOM) and a memory controller. The memory controller includes a host interface receiving a data word including first and second symbols, each having at least two bits, a WOM controller that encodes the first and second symbols and outputs a WOM-encoded word including first and second WOM codes corresponding to the first and second symbols, respectively, an error correction code (ECC) controller that encodes the WOM-encoded word and outputs an ECC-encoded word including the first and second WOM codes and a first set of ECC bits corresponding to a first write operation, and a memory device interface that writes the ECC-encoded word the WOM device in the first write operation. Each of the first and second WOM codes include at least three bits with at least two of the at least three bits having the same logic value.

A system, and corresponding method, is described for updating or calculating ECC where the transaction volume is significantly reduced from a read-modify-write to a write, which is more efficient and reduces demand on the data access bandwidth. The invention can be implemented in any chip, system, method, or HDL code that perform protection schemes and require ECC calculation, of any kind. Embodiments of the invention enable IPs that use different protections schemes to reduce power consumption and reduce bandwidth access to more efficiently communicate or exchange information.

A redundant tracking system comprising multiple redundant tracking sub-systems, enabling seamless transitions between such tracking sub-systems, provides a solution to this problem by merging multiple tracking approaches into a single tracking system. This system is able to combine tracking objects with six degrees of freedom (6DoF) and 3DoF through combining and transitioning between multiple tracking systems based on the availability of tracking indicia tracked by the tracking systems. Thus, as the indicia tracked by any one tracking system becomes unavailable, the redundant tracking system seamlessly switches between tracking in 6DoF and 3DoF thereby providing the user with an uninterrupted experience.

A redundant tracking system comprising multiple redundant tracking sub-systems, enabling seamless transitions between such tracking sub-systems, provides a solution to this problem by merging multiple tracking approaches into a single tracking system. This system is able to combine tracking objects with six degrees of freedom (6DoF) and 3DoF through combining and transitioning between multiple tracking systems based on the availability of tracking indicia tracked by the tracking systems. Thus, as the indicia tracked by any one tracking system becomes unavailable, the redundant tracking system seamlessly switches between tracking in 6DoF and 3DoF thereby providing the user with an uninterrupted experience.

An integrated circuit includes a functional core configured to execute functional logic instructions; a functional memory device coupled to the functional core; a safety core configured to execute safety check logic instructions; a monitored address memory device coupled to the functional core and the safety core, the monitored address memory device configured to store memory addresses to be monitored; and a first safety memory device coupled to the functional memory device and the safety core. When a value in one of the monitored memory addresses changes, the changed value of the one of the monitored memory addresses is stored in the functional memory device and in the first safety memory device. The safety core performs a safety check on the changed value of the one of the monitored memory addresses stored in the first safety memory device.

This application discloses a storage system, a data processing method, an apparatus, a node, and a storage medium, and pertains to the field of data storage technologies. In the method, a client determines an address that is in a storage unit and that is used to store to-be-written data, and sends the to-be-written data to a first storage device that is in a storage node and that is corresponding to the storage unit, so that the first storage device stores the to-be-written data while a CPU of the storage node does not need to determine a hard disk LBA corresponding to virtual address space, and a hard disk does not need to determine a corresponding physical address based on the hard disk LBA.

Encoding devices, methods and programs that encode with high transmission efficiency by controlling a running disparity are disclosed. In one example, an encoding device includes a scrambling circuit that scrambles an input data string, a calculation circuit that calculates a first running disparity of the scrambled data string, a determination circuit that determines whether or not to invert the scrambled data string on the basis of a first running disparity calculated by the calculation circuit and a second running disparity calculated at a time point before the first running disparity, and an addition circuit that inverts or non-inverts the scrambled data string on the basis of a determination result by the determination circuit, adds a flag indicating the determination result, and outputs the data string. The technology can be applied to devices that perform SLVS-EC standard communication.

Encoding devices, methods and programs that encode with high transmission efficiency by controlling a running disparity are disclosed. In one example, an encoding device includes a scrambling circuit that scrambles an input data string, a calculation circuit that calculates a first running disparity of the scrambled data string, a determination circuit that determines whether or not to invert the scrambled data string on the basis of a first running disparity calculated by the calculation circuit and a second running disparity calculated at a time point before the first running disparity, and an addition circuit that inverts or non-inverts the scrambled data string on the basis of a determination result by the determination circuit, adds a flag indicating the determination result, and outputs the data string. The technology can be applied to devices that perform SLVS-EC standard communication.