Abstract: A transducer utilizes a sound-producing member positioned in the area of magnetic flux concentration between magnetic poles of opposite polarity. The sound-producing member is variably vibratable in a magnetic structure between the poles to generate acoustic waves, and an acoustic conduit carries the acoustic waves through the magnetic poles e to a location outside the magnetic structure.

Abstract: An acoustic transducer includes a sound-producing member at least partially disposed within the first magnetic flux gap region between the magnetic poles, the sound-producing assemblage is magnetically excited through a magnetic circuit that passes from a location outside the magnetic flux gap region to inside the magnetic flux region through an air gap.

Abstract: A transducer utilizes a sound-producing member positioned in the area of magnetic flux concentration between magnetic poles of opposite polarity. The sound-producing member is variably vibratable in a magnetic structure between the poles to generate acoustic waves, and an acoustic conduit carries the acoustic waves through the magnetic poles e to a location outside the magnetic structure.

Abstract: A method for manufacturing a stator (24) for an electrostatic loudspeaker in which at least a part of a structure (28) for forming the stator (24) is moulded from an electrically insulating material. This structure (28) may be a frame of the stator. To complete the stator (24), electrically conductive portions (30) are combined with the moulded structure to form a complete structure that includes an electrically conductive grid (29). The electrically conductive portions (30) may be a preformed grid (29). The frame (28) and the grid (29) may be press-fitted together. Alternatively the moulded structure may be electrically conductive, and electrically insulating portions may be combined with it to form a complete stator. Manufacture of electrostatic loudspeaker stators using a moulding process allows for relatively low cost production methods that can repeatedly achieve a required high degree of accuracy.

Abstract: A transducer utilizes a sound-producing member positioned in the area of magnetic flux concentration between magnetic poles of opposite polarity. The sound-producing member is variably vibratable in a magnetic structure between the poles to generate acoustic waves, and an acoustic conduit carries the acoustic waves through the magnetic poles e to a location outside the magnetic structure.

Abstract: A carry select adder to add two binary addends to produce a binary sum. In a first section a first addition block adds 6-bit addend slices having 3-bit lower-half and higher-half slices. A first adder block receives and adds the lower-half slices and outputs an adder-carry-out and a 3-bit lower-half value. A zero-carry-loaded second adder block receives and adds the higher-half slices and outputs a 4-bit zero-related intermediate-value. A one-carry-loaded third adder block receives and adds the higher-half slices and outputs a 4-bit one-related intermediate-value. A 4-bit multiplexer then passes either the zero-related intermediate-value or the one-related intermediate-value as a 1-bit section-carry-out and a 3-bit higher-half value based on the adder-carry-out, wherein the higher-half value and the lower-half value form a 6-bit sum slice corresponding to the 6-bit addend slices.

Abstract: Systems and methods of storage device data encryption and data access via a hardware key are described here. One embodiment includes a hardware key to intercept a request sent from a host to a storage device to access data stored on one of a set of storage devices, wherein the data stored on the storage device has been encrypted. The hardware key is configured to be plugged into a port of the host and comprising a unit to control data access to the set of storage devices. The hardware key is to interpret the request and issue a command to the one of the set of storage devices, to access the encrypted data. The hardware key is to provide an encryption key to decipher the encrypted data from the one of the set of storage devices.

Abstract: Systems and methods of generating and providing a set of randomly selected substitute characters in place of a user entered key phrase are described here. One embodiment includes receiving a key phrase input by a user to gain access to secured data, and, in response to receiving the user entered key phrase, randomly selecting a set of substitute characters and providing the set of substitute characters in place of the key phrase entered by the user. In one embodiment, the randomly selecting comprises using a random number generator to select from a substitute character from a pre-generated set of substitute characters for each character, number, or text of the user entered key phrase. In one embodiment, the providing the set of substitute characters further comprises providing the randomly selected set of substitute characters in a display buffer as the user entered key phrase.

Abstract: Systems and methods for generating and displaying a keyboard comprising a random layout of keys are described here. One embodiment includes displaying a keyboard comprising a random layout of keys, to receive a user entered key phrase to be entered to gain access to secure data, and receiving the user entered key phrase by the user selecting keys of the keyboard via a pointing input device. The displaying includes, individually mapping keys of the keyboard to a separate value within a first value range, selecting a key for the keyboard based on the random value generated, and repeating the generating the random value and selecting a key for the keyboard based on the random value to select a remainder of keys for generating the random layout of keys for the keyboard.

Abstract: A method for manufacturing a stator (24) for an electrostatic loudspeaker in which at least a part of a structure (28) for forming the stator (24) is moulded from an electrically insulating material. This structure (28) may be a frame of the stator. To complete the stator (24), electrically conductive portions (30) are combined with the moulded structure to form a complete stricture that includes an electrically conductive grid (29). The electrically conductive portions (30) may be a preformed grid (29). The frame (28) and the grid (29) may be press-fitted together. Alternatively the moulded structure may be electrically conductive, and electrically insulating portions may be combined with it to form a complete stator. Manufacture of electrostatic loudspeaker stators using a moulding process allows for relatively low cost production methods that can repeatedly achieve a required high degree of accuracy.

Abstract: Systems and methods of providing security to an external Serial Advanced Technology Attachment (SATA) device are described herein. One embodiment includes presenting to a computing device, a first partition of an external Serial Advanced Technology Attachment storage device, as a Read Only Memory; restricting the computing device from accessing a secured second partition of the external Serial Advanced Technology Attachment storage device; and in response to receiving a valid identity authentication, unrestricting access to the second partition of the external Serial Advanced Technology Attachment storage device. In one embodiment, in response to receiving a logon request from the computing device, an identity authentication process is initiated, wherein the process is stored on the first partition.

Abstract: A method and apparatus of providing power to an external Serial Advanced Technology Attachment (SATA) device via a computing device are described here. One embodiment includes, transmitting data to a plurality of devices via at least one port of a first type of a computing device, and providing power to the plurality of devices via at least one port of a second type of the computing device; wherein the plurality of devices comprises one or more of a disk controller and an external Serial Advanced Technology Attachment device. The at least one port of the first type of the computing device is an external Serial Advanced Technology Attachment port and the at least one port of the second type of the computing device is a Universal Serial Bus port. In one embodiment, the disk controller comprises at least one parallel advanced technology attachment port.

Abstract: A series of computers to process data including a first and a last computer. Each of the computers except the first is preceded by a prior computer and each except the last is followed by a subsequent computer. A logic reads new data via a first data path and a logic writes old data via a second data path. A logic process the new data to produce the old data and, except for the last computer, a storage element stores the old data. The logic to write operates after the logic to read and the logic to write operates before the logic to process.

Abstract: A computer (12) having multiple data paths (38a-d) connecting to other devices, which may be similar computers. A register (40d) is provided that has bits (110) programmatically settable to address each of the data paths such that the computer can communicate via multiple of the data paths based on which bits are concurrently set in the register.

Abstract: A system for calculating a convolution of a data function with a filter function utilizing an array of processors including first and last processors. A coefficient value based on a derivation of the filter function and a data value representative of the data function are multiplied to produce a current intermediate value. Except in the first processor, a prior intermediate value is then added to the current intermediate value. Except in the last processor, the data and current intermediate values are then sent to the next processor. Then the last processor's prior intermediate value, if any, is added to its current intermediate value to produce a result value, wherein the result values collectively are representative of the convolution of the data function with the filter function.

Abstract: Systems and methods of storage device data encryption and data access via a hardware key are described herein. One embodiment includes a hardware key intercepting a request sent from a host to a storage device to access data stored on the storage device, wherein the data stored on the storage device has been encrypted using a first encryption key, the hardware key configured to be plugged into a port of the host and the hardware key comprising a controller comprising the first encryption key to decipher the encrypted data from the storage device. The hardware key interpreting the request and issuing a command to the storage device to access the encrypted data. The hardware key providing the first encryption key to decipher the encrypted data from the storage device.

Abstract: Systems and methods of storage device data encryption and data access are described herein. Some embodiments of the present invention are summarized in this section. One embodiment includes receiving a request to access data stored on a storage device, wherein the data stored on the storage device has been encrypted using at least one encryption key. In response to receiving the request, prompting a user to provide a password, and in response to receiving a password matching a predetermined password, accessing the encryption key to decipher the requested data stored on the storage device.

Abstract: A memory cell including a bit and bitnot sense lines as well as a random access memory (RAM) word line and a read only memory (ROM) word line. The memory cell particularly includes a static RAM (SRAM) bit cell and a ROM bit cell. The SRAM bit cell is coupled between the bit and bitnot sense lines, and is responsive to a signal on the RAM word line. The ROM bit cell is also coupled between the bit and bitnot sense lines, and is responsive to a signal on the ROM word line. The ROM bit cell includes first and second ROM pass transistors, a first node for permanently programming connection of the first ROM pass transistor to either a voltage line or a ground line, and a second node for permanently programming connection of the second ROM pass transistor to either the voltage line or the ground line.

Abstract: A flash-memory-card reader reads and writes multiple types of flash-memory cards, including CompactFlash, and the smaller SmartMedia, MultiMediaCard, Secure Digital, and Memory Stick. A converter chip converts the different card signals for transfer to a host personal computer (PC). Serial-to-parallel data conversion is performed for the smaller card formats with serial data interfaces, but not for CompactFlash with a parallel-data interface. A signal slot has a 50-pin connector for CompactFlash cards or passive adapters. The passive adapters have the CompactFlash form factor and a smaller connector fitting smaller flash cards. Passive adapters have no components but simply wire the smaller connector to the CompactFlash connector. A pin mapping allows card-type detection by sensing the LSB address pins of the CompactFlash interface. A larger CompactFlash reader has multiple slots for each card type. The reader is connected to the PC by a cable, or located within the PC chassis in a drive bay.