Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-5,689,525 |
Direct-sequence spread-spectrum communication system A clock signal generator produces a basic clock signal. A variable delay device is operative for delaying the basic clock signal by an adjustable interval and... |
| US-5,689,524 |
PN code synchronizing method and transmitter and receiver in spread
spectrum communication systems A PN code synchronizing method in spread spectrum communication systems of the present invention calculates a matrix H based on tap locations of a PN code... |
| US-5,689,523 |
Excitation system for multi-channel lasers An excitation system for a gas laser featuring a multiplicity of gain channels uses a resonant cavity to provide broad band RF power division and impedance... |
| US-5,689,522 |
High efficiency 2 micrometer laser utilizing wing-pumped Tm.sup.3+ and a
laser diode array end-pumping architecture Wing pumping a Tm.sup.3+ doped, end pumped solid state laser generates 2 .mu.m laser radiation at high average powers with high efficiency. Using laser diode... |
| US-5,689,521 |
Semiconductor laser light source unit A rod lens or a cylindrical lens is disposed in front of a semiconductor laser to increase a divergence angle of a laser beam emitted from the semiconductor... |
| US-5,689,520 |
Method and apparatus for variable waveform output in surgical lasers Variable waveform output in surgical laser is achieved by controlling power into a solid-state laser cavity. A control circuit is used to coordinate pulse... |
| US-5,689,519 |
Environmentally stable passively modelocked fiber laser pulse source The present invention is directed to providing an environmentally stable, ultra-short pulse source. Exemplary embodiments relate to passively modelocked... |
| US-5,689,518 |
Method and an apparatus to modify CRC in intermediate high speed network
nodes A method and an apparatus to calculate in an intermediate node of a communication network, the new Frame Check Sequence (FCS) appended to a data bits message... |
| US-5,689,517 |
Apparatus for scannable D-flip-flop which scans test data independent of
the system clock The present invention discloses an apparatus for controlling and observing test data stored in scannable-D-flip-flops independent of a system clock, thereby... |
| US-5,689,516 |
Reset circuit for a programmable logic device A programmable logic device (PLD) includes test circuitry compatible with the JTAG standard (IEEE Standard 1149.1). The PLD also includes a programmable... |
| US-5,689,515 |
High speed serial data pin for automatic test equipment A tester that produces digital timing signals having fast data rates including multiple groups of timing generators, multiple "exclusive-or" gates, and an "or"... |
| US-5,689,514 |
Method and apparatus for testing the address system of a memory system A method and apparatus for testing or verifying proper operation of an address system of a memory system are provided. The address system includes a write unit... |
| US-5,689,513 |
Data transmission system having a backup testing facility A data transmission system having, in addition to a normal system operation mode, a test mode wherein a plurality of stations confirm each other through sending... |
| US-5,689,512 |
ATM cell interface and method for dispatching an ATM cell A communication network. The communication network has an ATM network portion. The communication network has an ATM cell interface in communication with the ATM... |
| US-5,689,511 |
Data receiver for receiving code signals having a variable data rate A data receiver receives code data having a variable data rate and encoded with any one of a plurality of data rates and then repeated in accordance with the... |
| US-5,689,510 |
Data transmission installation of the radio network type, and
corresponding method A data transmission installation includes at least two data processing terminals (Pa, Pb), each equipped with a network interface (Ia, Ib) for transmitting... |
| US-5,689,509 |
Apparatus and method for packetizing and segmenting MPEG packets A circuit and method for optimizing efficiency in transferring a block of data having a plurality of frames of limited size from a memory element. The circuit... |
| US-5,689,508 |
Reservation ring mechanism for providing fair queued access in a fast
packet switch networks A non-blocking switching network for routing packets from a plurality of inputs to a plurality of outputs includes a reservation ring mechanism for resolving... |
| US-5,689,507 |
Signal processing system A signal processing system comprising a source apparatus coupled to a destination apparatus, the source apparatus being arranged for supplying the destination... |
| US-5,689,506 |
Multicast routing in multistage networks Multicasting of an ingress cell received at one of a plurality of input ports is provided through a multistage switching network to one or more of a plurality of... |
| US-5,689,505 |
Buffering of multicast cells in switching networks Multicasting of an ingress cell received at one of a plurality of input ports is provided through a switch network to one or more of a plurality of output ports.... |
| US-5,689,504 |
Mobile radio communication system and channel control method therefor In a mobile radio communication system, a mobile station has a field level decision section which outputs a decision signal when the electric field level of a... |
| US-5,689,503 |
Random access system of a mobile communication system When data is transferred by using a plurality of time slots, the transferring period is shortened by adopting priority to assign the required number of slots.... |
| US-5,689,502 |
Efficient frequency division duplex communication system with
interleaved format and timing adjustment control A system for efficient time division duplex communication between a base station and a plurality of user stations over multiple frequency bands whereby guard... |
| US-5,689,501 |
Connectionless communication system A communication system for transmitting a fixed-length cell converted from a variable-length information including data and a destination of the data. The system... |
| US-5,689,500 |
Multistage network having multicast routing congestion feedback Multicasting of an ingress cell received at one of a plurality of input ports is provided through a multistage network to a plurality of output ports. The... |
| US-5,689,499 |
Method and apparatus for managing the statistical multiplexing of data
in digital communication networks An apparatus and method are provided for supporting a plurality of virtual channel (VC) connections within a single virtual path (VP) in a digital communications... |
| US-5,689,497 |
Optical registration medium with dual information layer A read-only optical registration medium which successively includes: a transparent substrate; a first registration surface containing localized level variations ... |
| US-5,689,496 |
Optical recording medium having spiral tracks formed with a turning
angle of more than 360.degree. An optical recording medium enables an optical pickup to quickly access a plurality of items of information progressing concurrently or to be selected... |
| US-5,689,495 |
High density optical disc and optical disc player An optical disc having a track pitch of 0.85 .mu.m, a shortest pit length of 0.49 .mu.m, a pit depth of 100 nm, and a pit width of 0.35 .mu.m is rotated at a... |
| US-5,689,494 |
Surface atom fabrication method and apparatus A fine-fabrication method of solid surfaces relates to a new surface fabrication method allows a solid-device surface to be fabricated at an atomic scale so as... |
| US-5,689,493 |
A super-resolution optical head with signal corrective circuit An optical disk device is provided which can remove errors derived from the influence of side lobe components in read-out signals from a superresolution optical... |
| US-5,689,492 |
Assembly used for precisely positioning the component parts of a laser
detector grating unit (LDGU) An optical system including an LDGU having a multi-element grating beam splitter and an optical source with an effective aperture for generating a radiation beam... |
| US-5,689,491 |
Optical write/read device and an information recording media A method for optically writing/reading information is disclosed, where information is written onto and read from an information recording medium. Light is... |
| US-5,689,490 |
MO cartridge jukebox doors which open in a plane parallel to the front
panel of the jukebox A MO cartridge jukebox cartridge door and closure mechanism which employs a pair of parallel door panels and a pair of parallel cranks all connected together to... |
| US-5,689,489 |
Compact disc and floppy disc compatible drive and a driving method
thereof A compact disc and floppy disc compatible driver and a driving method thereof, in which a structure is improved for simultaneously driving a floppy disc and a... |
| US-5,689,488 |
Optical disc system, optical disc and recording method An optical disc system, optical disc, and a recording method allow users to use increased data recording capacities on recording media. The optical disc system... |
| US-5,689,487 |
Verify-while-recording device for optical disk recording apparatus A verify-while-recording device for an optical recording apparatus includes an optical head, a reproduction amplifier, a timing control circuit, and a recording... |
| US-5,689,486 |
Optical disc reproducing apparatus An optical disc reproducing apparatus reproduces different encoded audio signals from a first optical disc carrying recorded first audio data which is previously... |
| US-5,689,485 |
Tracking control apparatus and method An apparatus is disclosed for control of a beam of radiant energy, wherein a detector of the beam has first and second outputs responsive to a position of the... |
| US-5,689,484 |
Auto-changer and method with an optical scanner which distinguishes
title information from other information An auto-changer stores media such as audio or video discs or tape cassettes in numbered slots in a magazine. For each of the media in the magazine, title... |
| US-5,689,483 |
Controlling system for optical storage apparatus using pulse width
modulator An optical storage apparatus for confirming that an optical head reaches a predetermined position by using no positional sensor, is disclosed. The optical... |
| US-5,689,482 |
Disc drive device operable with different discs that may exhibit
different linear velocities or circumferential... An optical disc drive device performs a seek operation during a recording and/or reproducing mode on different discs, such as CDs or MDs, individually loaded... |
| US-5,689,481 |
Method of accessing multifile storage medium and library system A method of accessing a multifile storage medium and a library system. The library system includes recording/reproducing apparatuses for performing a ... |
| US-5,689,480 |
Magneto-optic recording system employing near field optics A magneto-optic recording system employing near-field optics which includes a read/write head having a pair of crossed tapered optical waveguides closely... |
| US-5,689,479 |
Magneto-optical recording apparatus In a magneto-optical recording apparatus, since a magnetic field is not generated in a data recording impossible area in order to lower power consumption,... |
| US-5,689,478 |
Magnetic head for magneto-optical recording and magneto-optical
recording apparatus in which a magnetic core... A magnetic head for magneto-optical recording includes a slider sliding on a magneto-optical recording medium, a core made of a magnetic material and mounted to... |
| US-5,689,477 |
Method and apparatus for storing and presenting visual and audible
information to an individual A method and apparatus for storing and presenting visual and audible information to an individual. Audio source signals from a stereophonic audio source are... |
| US-5,689,476 |
Telephone cost monitor A hand-held, battery powered, portable monitor for recording elapsed time and for calculating cost charges based upon this elapsed time. The monitor selectively... |
| US-5,689,475 |
Nautical apparatus to conduct reconnaissance missions of a site,
particularly bathymetric surveys Nautical apparatus to conduct reconnaissance missions of a site, particularly bathymetric surveys. A nautical apparatus to conduct reconnaissance missions of a site, ... |
Copyright 2008−2012 Patents.com
