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| Patent # | Description |
|---|---|
| US-5,581,553 |
Distributed switching architecture A system and method is disclosed for linking remote telecommunications ports connected to remote nodes wherein the functionality of a centralized switching... |
| US-5,581,552 |
Multimedia server A pool of multimedia servers, which may be geographically diverse, are available to be allocated to serve one of at least two ELANs served by an ELAN contronect... |
| US-5,581,551 |
Method for transmitting digital signals in an ATM communication network A packeting time of 6 ms is required for filling the information part of an ATM cell with 48 octets of a 64 kbit/s channel. This transit time is impermissably... |
| US-5,581,550 |
Procedure for time spacing of transmittals from cells relating to
messages, as well as devices for the... A process is described for spacing over time the transmissions of cells that belong to messages. The value of the address of the first cell of the message is... |
| US-5,581,549 |
Processor resetting method and apparatus In a communication network including a plurality of nodes, when it is desired for a processor A of one of the nodes to reset another processor B within the same... |
| US-5,581,548 |
Frequency and channel hopping communication in a TDMA cellular mobile
radio system According to method and apparatus for communication in a cellular TDMA mobile radio communication system with channel hopping, base and mobile stations transmit... |
| US-5,581,547 |
Random access communication method by CDMA and mobile station equipment
using the same Mobile stations randomly set delay amounts for each message to be sent, on the basis of the timing of a symbol received from a base station, and delay... |
| US-5,581,546 |
Apparatus for monitoring an ATM system Apparatus for monitoring a flow of ATM cells in which a measured value is calculated in all cases. A `leaky bucket` mechanism known for this purpose has too few... |
| US-5,581,545 |
Traffic control device in private ATM network If an illegal cell number is detected three times continuously for a monitor section in a connection, then tag information including class information indicating... |
| US-5,581,544 |
Method and apparatus for evaluating QOS in ATM multiplexing apparatus in
which priority control is performed... A probability transition matrix S.sub.t is formulated that expresses a multiplexing process which includes nested threshold priority control and classified... |
| US-5,581,543 |
Communication network and method which respond to a failed link A communications network (20) includes a constellation (30) of any number of moving switching nodes and a route-determining node (28). The route-determining node... |
| US-5,581,542 |
Device and method of performing a switching control to standby system in
hybrid system of duplex system and... In a device and a method for performing a switching control to a standby system in a hybrid system including a duplex system and a backup line, communication is... |
| US-5,581,541 |
Hierarchical connection method apparatus and protocol A protocol and associated circuitry operable for efficiently extending serial bus capability into multi-level system environments is disclosed. The protocol is... |
| US-5,581,540 |
Single disk write protection system for multiple-disk cartridge A write protection system for machine-readable data storage disks, such as optical disks, of a single or multiple disk cartridge, where write protection of any... |
| US-5,581,539 |
Optical recording medium The disclosure describes an optical recording medium for recording, erasing and reading-out information by irradiation a laser beam, comprising: a lower dielectric... |
| US-5,581,538 |
Recording/reproducing apparatus with a probe to detect data recorded in
pits and projections of a recording medium A probe is displaced relative to a recording medium according to a drive voltage. A chip is provided at an end of the probe. The chip serves to form pits and... |
| US-5,581,537 |
Information record/reproducing apparatus and information recording medium An improvement on the information record/reproducing apparatus, utilizing a tunnel current generated in a flat information recording medium by a needle-shaped... |
| US-5,581,536 |
Mass storage servo control system utilizing an analog signal leak
detector A circuit for detecting when peaks occur in an amplitude modulated electrical signal, and for measuring in real time the amplitudes of the detected peaks. The... |
| US-5,581,535 |
Prepulse conditon/heat shut off condition determination method and
apparatus for optical recording, and optical... In an optical recording method and apparatus, the intensity of a laser beam to be radiated onto an optical recording medium is raised from an intensity P.sub.pre... |
| US-5,581,534 |
Device for realizing a longitudinal pattern of substantially parallel
tracks in a record carrier which controls... An optical scanning device for realizing in a recording layer of an optical tape a longitudinal path (i.e. pattern) of substantially parallel tracks. The device... |
| US-5,581,533 |
Objective lens actuating device, optical pickup employing the objective
lens actuating device and optical disk... An objective lens actuating device including an objective lens, a bobbin, an elastic support and a magnetic circuit. The bobbin has the objective lens mounted at... |
| US-5,581,532 |
Optical information recording/reproducing apparatus for accurately
detecting magnetic domain edges An apparatus for recording and reproducing information on and from optical or opto-magnetic information recording media is disclosed. The apparatus comprises an... |
| US-5,581,531 |
Method of making optical disk master and an optical disk An optical disk master having a diffraction structure including guide grooves and small pre-pits of a width narrower than a diffraction limit determined by a... |
| US-5,581,530 |
Digital recorder for processing of parallel data stored in multiple
tracks and using cross-fade processing A buffer serves as a sub-memory with respect to a hard disk and performs a data recording/reproducing operation. With this arrangement, even if the access rate... |
| US-5,581,529 |
Combination of a recording arrangement and a source selection arrangement A combination including a recording arrangement and a source selection arrangement. The recording arrangement includes at least two different inputs for... |
| US-5,581,528 |
System for recording digital information in a pulse-length modulation
format An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital... |
| US-5,581,527 |
Information recording/reproducing apparatus for optical information
recording medium using a track traverse... Information is recorded and reproduced by making a light beam traverse guide tracks to reach a target track. In moving the light beam to the target track, a... |
| US-5,581,526 |
Optical seeking method and apparatus with track counting using tracking
error signal having constant amplitude... There is disclosed a method for moving an optical head from an initial track to a target track on a storage medium. The total number of tracks to be crossed is... |
| US-5,581,525 |
Dual mode recording and reproducing apparatus having two recording
regions using differing reproduction principles A recording and/or reproducing apparatus for a disc shaped recording medium having a first recording region in which an information signal is recorded using pits... |
| US-5,581,524 |
Magnetooptical information recording and/or reproducing method and
apparatus in which prior to actual recording... Recording of information on and/or reproduction of information from a magnetooptical recording medium is effected as follows. A light beam from an objective lens... |
| US-5,581,523 |
Laser emission unit, optical head and optical memory device A laser emission unit for use in an optical head performs a plurality of functions which are integrated. A laser beam from the laser emission unit mounted in a... |
| US-5,581,522 |
Library apparatus having accessor with bar code reader which rotates at
a different horizontal position when... A library apparatus having an accessor equipped with a bar code reader. The library apparatus includes a recording medium drive unit for writing and reading data... |
| US-5,581,521 |
Device for controlling the motor of a recording and reproducing apparatus The present invention is provided with a disturbance observer which outputs a compensating signal for compensating a driving signal of a linear motor in... |
| US-5,581,520 |
Watch driven elapsed time indicator apparatus and its method of
manufacture and use An elapsed time hour meter for measuring and indicating an amount of elapsed time used in many types of applications. The elapsed time hour meter has a... |
| US-5,581,519 |
Analog indicator type electronic timepiece and charging method thereof An analog indication type electronic timepiece includes a power generation device for transforming kinetic energy produced by motions of a user into electric... |
| US-5,581,518 |
Transducer cover A protective cover for protecting the sonar transducer of a fishing boat or other recreational watercraft, from damage caused by flying debris during overland... |
| US-5,581,517 |
Method and apparatus for focus control of transmit and receive
beamformer systems A beamformer control system includes a primary control and secondary controls so that delay and apodization beamformation profiles can be generated on a dynamic... |
| US-5,581,516 |
Low power transmitter providing selectable waveform generation A low power transmitter providing selectable waveforms includes a self-coined power source, such as a battery. A timer powered by the battery provides a... |
| US-5,581,515 |
Thin speed transducer sensor A speed sensor for a ship, more particularly, a thin speed sensor which can be mounted in the hull of the ship and remain flush with the outer surface of the... |
| US-5,581,514 |
Surface seismic profile system and method using vertical sensor The seismic profile system and method using vertical sensor arrays relate to obtaining a seismic profile under two highly reflective boundaries. The system... |
| US-5,581,513 |
Continuous page random access memory and systems and methods using the
same A random access memory 200 is provided which includes input/output circuitry 205 and an array 202 of random access memory cells 201 arranged in rows and columns.... |
| US-5,581,512 |
Synchronized semiconductor memory A synchronized semiconductor memory device comprising a memory cell array, an address input circuit, an address set circuit, a command input circuit, a data... |
| US-5,581,511 |
Integrated circuit memory device with balancing circuit including
follower amplifier coupled to bit line In reading circuits for memories in integrated circuit form, notably non-volatile memories, to obtain a better compromise between reading speed and the... |
| US-5,581,510 |
Method of testing flash memory According to a time required for programing operation, respective chips of flash memories are divided into a first group and a second group of chips requiring a... |
| US-5,581,509 |
Double-row address decoding and selection circuitry for an electrically
erasable and programmable non-volatile... A double-row address decoding and selection circuitry for an electrically erasable and programmable non-volatile memory device with redundancy comprises a... |
| US-5,581,508 |
Semiconductor memory having sub-word line replacement In a semiconductor memory apparatus having a row decoder classified by main word lines and word lines, the number of spare lines for a defect is increased... |
| US-5,581,507 |
Systems and methods for memory control A memory controller for supplying backup battery power when a main power supply voltage drops together with programmable plus power fail write protection. The... |
| US-5,581,506 |
Level-shifter, semiconductor integrated circuit, and control methods
thereof During a period corresponding to the former half of one cycle of a clock signal, a capacitor is charged to an intermediate potential between the respective... |
| US-5,581,505 |
Ram/ROM hybrid memory architecture An integrated circuit memory which includes at least some RAM/ROM hybrid columns. The RAM/ROM hybrid cells operate as normal SRAM cells forever, unless and until... |
| US-5,581,504 |
Non-volatile electrically erasable memory with PMOS transistor NAND gate
structure A NAND Flash EEPROM string is formed in a common N-well and includes a plurality of P-channel MOS stacked-gate storage transistors and P-channel MOS string and... |
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