7804 results about "Volatile memory" patented technology

A very high density field programmable memory is disclosed. An array is formed vertically above a substrate using several layers, each layer of which includes vertically fabricated memory cells. The cell in an N level array may be formed with N+1 masking steps plus masking steps needed for contacts. Maximum use of self alignment techniques minimizes photolithographic limitations. In one embodiment the peripheral circuits are formed in a silicon substrate and an N level array is fabricated above the substrate.

An apparatus for cooling a skin surface includes an RF device that has an RF electrode with dielectric and conductive portions. The RF device is configured to be coupled to an RF energy source. A cooling member is coupled to the RF device. A memory is coupled to the RF device. The memory is configured to store information to facilitate operation of at least one of the RF electrode, the cooling member, and the RF energy source.

A non-volatile memory device and programming process is described that compensates for coupling effects on threshold gate voltages of adjacent floating gate or non-conductive floating node memory cells by adjusting the threshold voltage level programmed in view of the data being programmed on a following programming cycle into adjacent memory cells, so that the coupling effect results in the desired target threshold voltages for the cells. In one embodiment of the present invention, memory cell coupling is compensated for by adjusting programming level of one or more memory cells of a first page a memory array to a higher or lower threshold verify target voltage given the data / programming level to be written to directly adjacent memory cells of a second page, so that coupling between the directly adjacent memory cells of the first and second pages brings the memory cells of first page to their final target programming level.

A write-caching RAID controller is disclosed. The controller includes a CPU that manages transfers of posted-write data from host computers to a volatile memory and transfers of the posted-write data from the volatile memory to storage devices when a main power source is supplying power to the RAID controller. A memory controller flushes the posted-write data from the volatile memory to the non-volatile memory when main power fails, during which time capacitors provide power to the memory controller, volatile memory, and non-volatile memory, but not to the CPU, in order to reduce the energy storage requirements of the capacitors. During main power provision, the CPU programs the memory controller with information needed to perform the flush operation, such as the location and size of the posted-write data in the volatile memory and various flush operation characteristics.

The system described in this invention can be used for monitoring and analyzing real time visual and non-visual information pertaining to the occupant, vehicle, and surroundings prior to, during and post eccentric operating conditions for a given period of time. The system stores vehicle and occupant data from sensors throughout the vehicle and also makes use of existing vehicle sensors that may already be present in the vehicle. The invention also includes a video recording module that makes use of a fish-eye camera to capture video from the inside and the outside of the vehicle. Real-time data analysis is performed to detect and to recognize vehicle occupants, and recognize impending eccentric events. Vehicle, occupant, and video data are stored in circular buffers. When an eccentric event, a collision for example, has been detected, the device continues to record data and video for a fixed period of time. Once this time has elapsed, the data is transferred from volatile to non-volatile memory for later retrieval. A computer may be used to retrieve and display the vehicle and occupant data in a synchronization with the video data for the purposes of accident recreation, driver or vehicle monitoring.

A cluster storage system comprises a plurality of nodes that access a shared storage, each node having two or more failover partner nodes. A primary node produces write logs for received write requests and produces parity data for the write logs (storing the parity data to local non-volatile storage). By storing parity data rather than actual write logs, the non-volatile storage space within the cluster for storing write logs is reduced. Prior to failure of the primary node, the primary node also sub-divides the write logs into two or more sub-sets and distributes the sub-sets to the two or more partner nodes for storage at non-volatile storage devices. Thus, if the primary node fails, its write logs are already distributed among the partner nodes so each partner node may perform the allotted write logs on the storage, thus improving the response time to the primary node failure.

A method and apparatus to improve the read / write performance of a hard drive is presented. A device having solid state, non-volatile (NV) memory is added in-line to the conventional hard drive and acts as a read / write cache. Data specified by the operating system is stored in the NV memory. The operating system provides a list of data to be put in NV memory. The data includes data to be pinned in NV memory and data that is dynamic. Pinned data persists in NV memory until the operating system commands it to be flushed. Dynamic data can be flushed by the hard drive controller. Data sent by an application for storage is temporarily stored in NV memory in data blocks until the operating system commits it to the disk.