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| Patent # | Description |
|---|---|
| US-6,798,828 |
Full duplex gigabit-rate transceiver front-end and method operation A method for equalizing a signal in a transceiver includes receiving an analog signal and adaptively equalizing the analog signal in an adaptive equalization... |
| US-6,798,827 |
System and method for correcting offsets in an analog receiver front end A method corrects an input DC offset signal generated in front-end analog signal processing circuitry in a transceiver capable of operating in a high frequency... |
| US-6,798,826 |
Method and apparatus for performing reverse rate matching in a CDMA system Techniques for processing symbols received for a (transport) channel in a (W-CDMA) communication system. According to the W-CDMA standard, the coded bits of a... |
| US-6,798,825 |
Method for using circular spreading codes to achieve high bit densities in
a direct-sequence spread spectrum... A method for achieving high bit densities in a direct-sequence spread spectrum communication system by using circular spreading codes. The circular spreading... |
| US-6,798,824 |
Spread spectrum subscriber unit for analyzing multipath components A subscriber unit receives a plurality of first spread spectrum signals. Each first spread spectrum signal has a first code. An impulse response of multipath... |
| US-6,798,823 |
Parallel distributed sample acquisition system and signal acquisition
method using the same A parallel distributed sample acquisition system is disclosed. It is capable of carrying out parallel distributed sample acquisition employing M-ary signaling... |
| US-6,798,822 |
Simultaneous induction heating and stirring of a molten metal Molten metal, or other electrically conductive material, in a vessel can be inductively heated, and simultaneously inductively stirred. A single-phase ac supply... |
| US-6,798,821 |
Method and apparatus for solidification-controllable induction melting of
alloy with cold copper crucible A method for solidification-controllable induction melting of alloy with cold copper crucible employs the vacuum induction furnace with cold crucible to melt... |
| US-6,798,820 |
Adjusting device for a multi-beam source unit and image forming apparatus An adjusting device for a multi-beam source unit includes a mounting bracket, a base member rotatably mounted on the mounting bracket and a multi-beam laser... |
| US-6,798,819 |
Optical pickup apparatus and method of manufacturing the same A deflector deflects laser light emitted from a laser light emitting device. A lens driver moves an objective lens for conversing the laser light deflected by... |
| US-6,798,818 |
Method of producing distributing reflectors, and reflectors provided by the
method A method of producing a distributed reflector that includes a grating, wherein regions (21) are provided in the grating material transversely to the longitudinal... |
| US-6,798,817 |
Distributed bragg reflectors incorporating SB material for long-wavelength
vertical cavity surface emitting lasers A distributed Bragg reflector (DBR) for a vertical cavity surface emitting laser (VCSEL) has a semiconductor material system including the elements aluminum,... |
| US-6,798,816 |
Folded tapered-waveguide CO2 laser A folded waveguide CO.sub.2 laser includes a plurality of waveguides arranged in a zigzag pattern with ends thereof overlapping. The laser includes a resonator... |
| US-6,798,815 |
High power semiconductor laser diode and method for making such a diode Semiconductor laser diodes, particularly high power ridge waveguide laser diodes, are often used in opto-electronics as so-called pump laser diodes for fiber... |
| US-6,798,814 |
Gas discharge laser, method of operating a gas discharge laser, and use of
a sintered filter The invention relates to a gas discharge laser including a discharge tube (1), in which a gas is present and which has at least one aperture (19) through which a... |
| US-6,798,813 |
Closed-loop purging system for laser A method of minimizing contamination of optical components of a laser resonator is disclosed. The resonator components are located in an enclosure, which may... |
| US-6,798,812 |
Two chamber F2 laser system with F2 pressure based line selection The present invention provides an injection seeded modular gas discharge laser system capable of producing high quality pulsed laser beams at pulse rates of... |
| US-6,798,811 |
Semiconductor laser device, method for fabricating the same, and optical
disk apparatus A semiconductor laser device (10) includes a resonant cavity (12) in which a quantum well active layer (11) made up of barrier layers of gallium nitride and well... |
| US-6,798,810 |
Surface-emitting laser having lateral current injection The invention describes a surface-emitting laser (VCSEL) with lateral current injection. The pump current (4), from the contact face (2) on the decoupling side,... |
| US-6,798,809 |
GaInNAsSb quantum well semiconductor devices In connection with an optical-electronic semiconductor device, improved photoluminescent output is provided at wavelengths beyond 1.3 m. According to one aspect,... |
| US-6,798,808 |
Semiconductor laser device and method of manufacturing same In a semiconductor laser device having a quantum well active layer, an undoped thin spacer layer is formed between an undoped optical guide layer and a p-type... |
| US-6,798,807 |
Semiconductor laser and semiconductor laser module A semiconductor laser performs high-speed modulation with a low-capacitance structure. The laser comprises a multilayered growth layer which is electrically... |
| US-6,798,806 |
Hybrid mirror VCSELs VCSELs having upper mirror structures comprised of a semiconductive top DBR, metal contacts, and a top mirror. The top DBR is thick enough for adequate current... |
| US-6,798,805 |
Semiconductor laser device containing controlled interface oxygen at both
end facets In a semiconductor laser device: a multilayer structure including a plurality of semiconductor layers is formed on a substrate; and at least one dielectric layer... |
| US-6,798,804 |
Laser apparatus including surface-emitting semiconductor excited with
semiconductor laser element, and directly... A laser apparatus includes a semiconductor laser element, a surface-emitting semiconductor element including a first mirror, a second mirror, and a modulation... |
| US-6,798,803 |
Gas laser device In a gas laser device, a compensation time according to electric charges accumulated in a charging capacitor is calculated and, when the compensation time lapsed... |
| US-6,798,802 |
High-speed laser driver including wave-shaping circuits A high-speed laser driver for signal noise on the electrical analysis point. The driver includes a power supply, for providing a test voltage in the system; a... |
| US-6,798,801 |
Pump laser current driver A laser system includes a series coupled laser diode pair, first and second current regulators, and a power supply. The first current regulator controls current... |
| US-6,798,800 |
Method and apparatus to sense temperature of thermal tuning elements in
tunable optical devices A tunable optical unit includes a resistive temperature device (RTD), a thermal tuning device and a measurement circuit. The RTD has a resistance dependent on a... |
| US-6,798,799 |
Wavelength locked integrated optical source structure using multiple
microcavity A wavelength-locked, integrated optical signal source structure using a semiconductor laser device is disclosed. The optical source structure has a semiconductor... |
| US-6,798,798 |
Semiconductor laser apparatus and fabrication method of same, and
semiconductor laser module A cavity length is determined on the basis of a relationship of electric drive power to a range of optical output power over 50 mW, for cavity length to be... |
| US-6,798,797 |
Method and apparatus for driving laser diode sources A method and apparatus for driving a laser diode source, such as a laser diode or a laser diode array. The driver controlling current in response to a signal... |
| US-6,798,796 |
Active wavelength locking A wavelength locked tunable laser source comprising a tunable laser source, an optical reference source characterized by a frequency spectrum with two combs of... |
| US-6,798,795 |
Ultra-compact room temperature rapidly tunable infrared sources An ultra-compact, room-temperature, continuous-wave infrared source that can rapidly tune over a very wide spectral range. The targeted spectral overages are 3... |
| US-6,798,794 |
Semiconductor laser device, astigmatic correction plate used therefor and
method of arranging the astigmatic... Provided are a semiconductor laser device capable of increasing an emission angle of a laser beam, an astigmatic correction plate used therefor and a method of... |
| US-6,798,793 |
Passively modelocked fiber laser A passively modelocked fiber laser includes a laser diode generating laser energy, a wavelength splitter guiding the laser energy generated at the laser diode to... |
| US-6,798,792 |
Laser device and light signal amplifying device using the same In a laser device and a light signal amplifying device with an optical fiber containing a laser activating substance in the inside for emitting a light beam from... |
| US-6,798,791 |
Cluster frame synchronization scheme for a satellite digital audio radio
system A satellite digital audio radio system (SDARS) transmitter provides a broadcast transmission signal including a time division multiplex (TDM) mode of... |
| US-6,798,790 |
Method of generating a clock signal for the upstream channel of a
bidirectional point-to-multipoint network A master clock signal generated at the center (1) of a bidirectional point-to-multipoint network is transmitted in the form of time stamps in an MPEG-2 data... |
| US-6,798,789 |
Priority enhanced messaging and method therefor A serial bus (106) communication protocol communicates data packets. When priority messages are identified, transmission of a data packet (302) being... |
| US-6,798,788 |
Arrangement determining policies for layer 3 frame fragments in a network
switch A network switch, configured for performing layer 2 and layer 3 switching in an Ethernet (IEEE 802.3) network without blocking of incoming data packets, includes... |
| US-6,798,787 |
Network system and communication band control method thereof A network system has a plurality of nodes being operated by their communication application programs. In the network system, each of the nodes includes a... |
| US-6,798,786 |
Managing calls over a data network A method and system of managing calls over a data network includes determining an available bandwidth of the data network. After a call request is received for... |
| US-6,798,785 |
Frame relay over IP A system and method of implementing interworking function (IWF) between frame relay and IP protocols and networks. The interworking function provides mapping and... |
| US-6,798,784 |
Concurrent switching of synchronous and asynchronous traffic A network element can be configured for connection to any portion of a communication network: access, transport and core. Moreover, a single network element can... |
| US-6,798,783 |
Method and apparatus for handling out of inverse multiplexing for
asynchronous transfer mode frame error conditions Methods and apparatus are disclosed for handling transient anomalies in a communications or computer device or system, such an inverse multiplexing for ATM... |
| US-6,798,782 |
Truly anonymous communications using supernets, with the provision of
topology hiding Methods and systems consistent with the present invention provide a Supernet, a private network constructed out of components from a public-network... |
| US-6,798,781 |
Optical communications system A passive optical network employing wavelength dependent routing uses two-phase signalling between a network controller and terminals. In a first phase,... |
| US-6,798,780 |
Techniques for achieving high responsiveness from communicating nodes, and
verifying, measuring and deterring... Techniques for establishing contact between a first node and a second node in a communication system having a plurality of nodes. Upon a failure of an attempt by... |
| US-6,798,779 |
Synchronous communications network transmission device having a switching
capability of an asynchronous... Data such as STS, DS1, a LAN packet, etc. are converted into STS signals. The STS signals are classified into a signal which is switched by an STS switching... |
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