摘要:
Methods and systems of managing memory addresses in a large capacity multi-level cell based flash memory device are described. According to one aspect, a flash memory device comprises a processing unit to manage logical-to-physical address correlation using an indexing scheme. The flash memory is partitioned into N sets. Each set includes a plurality of entries (i.e., blocks). N sets of partial logical entry number to physical block number and associated page usage information (hereinafter ‘PLTPPUI’) are stored in the reserved area of the MLC based flash memory. Only one the N sets is loaded to address correlation and page usage memory (ACPUM), which is a limited size random access memory (RAM). In one embodiment, static RAM (SRAM) is implemented for fast access time for the address correlation. LSA received together with the data transfer request dictates which one of the N sets of PLTPPUI is loaded into ACPUM.
摘要:
A portable USB device with an improved configuration is described herein. According to one embodiment, a portable USB device includes a core unit having a USB plug connector coupled to one or more flash memory devices and a flash controller disposed therein, where the flash controller is capable of exchanging data with a host via the USB plug connector using a bulk-only-transfer protocol. The portable USB device further includes a housing for enclosing the core unit, including a front end opening to allow the USB plug connector to be deployed. The portable USB device further includes a core unit carrier for carrying the core unit for deploying and retracting the core unit, including a slide button to allow a finger of a user to slide the USB plug connector of the core unit in and out of the housing via the front end opening of the housing.
摘要:
A multi-level cell (MLC) dual-personality extended External Serial Advanced Technology Attachment (eSATA) flash drive includes a MLC dual-personality extended eSATA plug connector connected to a flash drive and removably connectable to a host. The connector is adaptable to receive electoral data from both a USB and eSATA interface.
摘要:
Methods and systems of managing memory addresses in a large capacity multi-level cell based flash memory device are described. According to one aspect, a flash memory device comprises a processing unit to manage logical-to-physical address correlation using an indexing scheme. The flash memory is partitioned into N sets. Each set includes a plurality of entries (i.e., blocks). N sets of partial logical entry number to physical block number and associated page usage information (hereinafter ‘PLTPPUI’) are stored in the reserved area of the MLC based flash memory. Only one the N sets is loaded to address correlation and page usage memory (ACPUM), which is a limited size random access memory (RAM). In one embodiment, static RAM (SRAM) is implemented for fast access time for the address correlation. LSA received together with the data transfer request dictates which one of the N sets of PLTPPUI is loaded into ACPUM.
摘要:
An extended USB plug connector includes a connector substrate including a frontend having a first set of electrical contact pins disposed thereon and a backend having a second set of electrical contact pins disposed thereon. The first set includes a first row of electrical contact pins disposed on a top surface of the connector substrate and a second row of electrical contact pins disposed in parallel with the first row of electrical contact pins and interior to the first row of electrical contact pins, where the second row includes more electrical contact pins than the first row. The second set of electrical contact pins includes a number of electrical contact pins equal to the first row and second row of electrical contact pins in total. The second set of electrical contact pins are used to connect to corresponding electrical contact pads disposed on a printed circuit board assembly having a USB controller and flash memory devices disposed thereon.
摘要:
An extended universal serial bus (USB) storage device is described herein. According to one embodiment, an extended USB storage device includes a printed circuit board assembly (PCBA) having a flash memory device and a flash controller mounted thereon, and an extended USB connector plug coupled to the PCBA for providing a USB compatible interface between an external device and the flash memory device and the flash controller, wherein the extended USB connector plug includes a first end used to couple to the external device and a second end coupled to the flash memory device and the flash controller.In one embodiment, a front piece (1701) includes a metal case (1706) for shielding and a tongue (1709) with contact pins (1781, 1782) and a rear piece (1702) includes a tip portion (1713) with contacts (1783). When the rear tip portion (1713) is inserted into the front piece the contact pins (1783) engage the contact pins (1781, 1782). The rear piece may also include locking pieces (1715) that are to enter slots (1714) in the front piece.
摘要:
Briefly, a portable USB flash memory device is disclosed to include a Chip-On-Board COB Printed Circuit Board Assembly PCBA inside. The flash memory device is enclosed inside a housing structure with a sliding button to deploy the USB plug connector external to the housing structure. The flash memory device with Multi-Level-Cell MLC compatible is being able to connect to a host with a Universal Serial Bus USB interface.
摘要:
A portable USB device with an improved configuration is described herein. According to one embodiment, a portable USB device includes a core unit having a USB plug connector coupled to one or more flash memory devices and a flash controller disposed therein, where the flash controller is capable of exchanging data with a host via the USB plug connector using a bulk-only-transfer protocol. The portable USB device further includes a housing for enclosing the core unit, including a front end opening to allow the USB plug connector to be deployed. The portable USB device further includes a core unit carrier for carrying the core unit for deploying and retracting the core unit, including a slide button to allow a finger of a user to slide the USB plug connector of the core unit in and out of the housing via the front end opening of the housing.
摘要:
A portable USB device with an improved configuration is described herein. According to one embodiment, a portable USB device includes a core unit having a USB plug connector coupled to one or more multi-level cell (MLC) flash memory devices and an MLC flash controller disposed therein. The portable USB device further includes a housing for enclosing the core unit, including a front end opening to allow the USB plug connector to be deployed. The portable USB device further includes a core unit carrier for carrying the core unit for deploying and retracting the core unit, including a slide button to allow a finger of a user to slide the USB plug connector of the core unit in and out of the housing via the front end opening of the housing.
摘要:
Briefly, an embodiment of the present invention includes a portable flash memory drive with a simplified mechanism, based upon the resilient properties of the material used to create the parts, for reliable extension and retraction of the device's interface plug. The portable flash memory drive is comprised of a metal housing (or case), a printed circuit board (PCB) assembly, PCB support, PCB assembly end cap, an upper, and lower housing, and in some embodiments a fingerprint sensor and/or key ring assembly. The press/push switch mechanism is located on either the side of the portable flash memory device, or the top; and relies upon the resilient properties of the material used to create the metal housing or end cap, to create a smooth, locking mechanism for the extension or retraction of the interface (i.e., USB or firewire) plug. The switching/locking mechanism relies upon grooves or notches within the material of the upper and/or lower housing for tracking and locking, coupled with protrusion tabs on the sliding components of the end cap or metal housing. Alternatively, in some embodiments of the present invention, a fingerprint sensor is also extended or retracted contemporaneously with the interface plug, and allows the end user to secure and unlock the data contained, in whole or in part, therein.