Abstract:
The present invention provides a data cache architecture interposed between a host and a flash memory, the data cache architecture comprising: a buffer memory, receiving data from the host; a memory controller, deploying the data in the buffer memory; and a data cache memory, controlled by the memory controller according to a cache algorithm. The data cache architecture and the cache algorithm used in the data cache architecture can be used to minimize the program/erase count of the NAND type flash device.
Abstract:
A memory storage device includes a host interface to be connected to a terminal host, a controller connected to the host interface, and a fingerprint sensor and a memory module both connected to the controller. The controller communicates with the terminal host by handshakes and causes the terminal host to automatically run a suitable driver and a suitable application program from the memory module to the terminal host. The terminal host receives an instruction from a user through the driver and the program and informs the controller to control the fingerprint sensor to read to-be-recognized fingerprint data of the user. The terminal host utilizes the application program to process and judge whether or not the to-be-recognized fingerprint data substantially matches with template fingerprint data stored in the memory module, and further enables a specific block of the memory module to be accessed by the terminal host according to a matching result.
Abstract:
A method of state maintenance for a flash storage card system. The method includes using a plurality of signals, including a working voltage signal, a low voltage detection (LVD) signal, an LVD interrupt signal, a firmware polling signal, an LVD interrupt reset signal. The LVD signal responds to a voltage level of the working voltage at a preset voltage level. The LVD interrupt signal responds to the level of the LVD signal. After the LVD signal returns to the high level state and the firmware polling signal does the polling action to the LVD interrupt signal, then the LVD interrupt reset signal is issued to reset the LVD interrupt signal.
Abstract:
A contactless Mask ROM is described, comprising a plurality of MOS-type memory cells. The memory cells include a plurality of first memory cells and a plurality of second memory cells. The first memory cells have a first channel conductivity so that they are depletion-mode MOS transistors, and the second memory cells have a second channel conductivity so that they are enhanced-mode MOS transistors. In the contactless Mask ROM, a memory cell shares two diffusions with two adjacent memory cells that are aligned with the memory cell along a first direction.
Abstract:
The invention is directed to a layout of nonvolatile memory device. The memory cell has a gate electrode, a first doped electrode, and a second doped electrode. The first doped electrode is coupled to the bit line. The gate electrode is coupled to one separated word line. A shared coupled capacitor structure is coupled between all of memory cells of the adjacent bit lines from the second doped electrode. The capacitor structure has at least two floating-gate MOS capacitors. Each floating-gate MOS capacitor has a floating-gate transistor having a floating gate, a first S/D region and a second S/D region; and a MOS capacitor coupled to the floating gate. The first S/D region is coupled to the second doped electrode of the corresponding one of the transistor memory cells, and the second S/D region is shared with an adjacent one of the floating-gate transistor.
Abstract:
A method for partitioning a memory mass storage device is disclosed. The partition task is performed by the controller within the memory mass storage device. Firstly, the controller partitions the logical space of the memory storage device into multiple areas, each area belonging to a particular drive. Secondly, the controller partitions the logical space of the memory storage device into a public area and a security area, both areas belonging to the same drive. Finally, the controller partitions the logical space of the memory storage device into multiple areas, which include public areas and security areas and belong to multiple drives.
Abstract:
In an embodiment, the invention provides a structure of MEMS microphone includes a substrate of semiconductor, having a first opening in the substrate. A dielectric layer is disposed on the substrate, having a dielectric opening. A diaphragm is within the dielectric opening and held by the dielectric layer at a peripheral region, wherein the diaphragm has a diaphragm opening. A back-plate is disposed on the dielectric layer, over the diaphragm. A protruding structure is disposed on the back-plate, protruding toward the diaphragm. At least one air valve plate is affixed on an end of the protruding structure within the diaphragm opening of the diaphragm. The air valve plate is activated when suffering an air flow with a pressure.
Abstract:
A mobile storage device with access control includes a portable storage device and an access control device. The access control device has a non-volatile memory for storing an access-control setting information. If the access-control setting information has already been set with required parameters and when the portable storage device with the access control device is connected to a master equipment, the portable storage device is automatically switched to a secured private zone for the master equipment to access the secured private zone. Further, an agreement to recognize the access-control setting information is made in each time of access if the access control device requires the agreement.
Abstract:
A MEMS device includes a silicon substrate and a structural dielectric layer. The silicon substrate has a cavity. The structural dielectric layer is disposed on the silicon substrate. The structural dielectric layer has a space above the cavity of the silicon substrate and holds a plurality of structure elements within the space, including: a conductive backplate, over the silicon substrate, having a plurality of venting holes and a plurality of protrusion structures on top of the conductive backplate; and a diaphragm, located above the conductive backplate by a distance, wherein a chamber is formed between the diaphragm and the conductive backplate, and is connected to the cavity of the silicon substrate through the venting holes. A first side of the diaphragm is exposed by the chamber and faces to the protrusion structures of the conductive backplate and a second side of the diaphragm is exposed to an environment space.
Abstract:
A MEMS device includes a silicon substrate and a structural dielectric layer. The silicon substrate has a cavity. The structural dielectric layer is disposed on the silicon substrate. The structural dielectric layer has a space above the cavity of the silicon substrate and holds a plurality of structure elements within the space, including: a conductive backplate, over the silicon substrate, having a plurality of venting holes and a plurality of protrusion structures on top of the conductive backplate; and a diaphragm, located above the conductive backplate by a distance, wherein a chamber is formed between the diaphragm and the conductive backplate, and is connected to the cavity of the silicon substrate through the venting holes. A first side of the diaphragm is exposed by the chamber and faces to the protrusion structures of the conductive backplate and a second side of the diaphragm is exposed to an environment space.