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Class 398/110 - Through optical fiber or waveguide


Subclass of Class 398 - Optical communications
Definition: Subject matter wherein the optical communication link
No. of patents: 53
Last issue date: 10/05/2010


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NumberTitleIssue Date
7809273Transmission technique in system including chamber
A system is provided including a chamber having an internal environment different from an external environment. The chamber includes a transmission line, disposed through a partition wall of the chamber, for transmitting an electromagnetic wave therethrough. A plura...
10/05/2010
7706691Transmission device having optical fiberhigh definition digital audio-video data interface
A transmission device having optical fiber high definition digital audio-video data interface (HDMI/DVI/UDI), in which optical fiber is utilized as the physical connection for the logical channels of the transmission device, and is used to carry images, voices and a...
04/27/2010
7388189System and method for connecting electrical devices using fiber optic serial communication
A system and method for communicating between serially connected electrical devices of a network is provided. The network includes a series of electrical devices, and fiber optic connectors between electrical devices of the series of electrical devices forming a clo...
06/17/2008
7324092Electronic device hinge structure
An electronic device hinge structure includes at least one rotation shaft horizontally protruded on a side of a display unit of the electronic device and having a bearing portion formed on at least one end thereof; and at least one bearing member formed on a side of...
01/29/2008
7302178System and method for measuring power of optical signals carried over a fiber optic link
A pilot tone generator receives optical energy from an optical communication medium carrying a plurality of optical signals. Each optical signal carries data modulated at a unique wavelength and further modulated with a unique identification signal. The identificati...
11/27/2007
7263288Optical routing using a star switching fabric
In one embodiment, a router includes a plurality of line cards each operable to receive at least one packet comprising an identifier associated with a destination element external to the router. Each line card includes a look-up table operable to facilitate routing ...
08/28/2007
7253765Detachable remote controller for an electronic entertainment device and method for using the same
A detachable remote controller for an electronic entertainment device and a method for using the same are provided. The detachable remote controller includes a first infrared transmitter and a second infrared transmitter. The first infrared transmitter transmits sig...
08/07/2007
7174074Conduit insert for optical fiber cable
A flexible innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable ...
02/06/2007
7123015Magnetic resonance system and method
A magnetic resonance (MR) system and method for generating information about an object is provided. The MR system comprises at least one MR detector configured to sense a plurality of electromagnetic signals and a modulator coupled to the MR detector and configured ...
10/17/2006
7076164System and method for measuring power of optical signals carried over a fiber optic link
A pilot tone generator receives optical energy from an optical communication medium carrying a plurality of optical signals. Each optical signal carries data modulated at a unique wavelength and further modulated with a unique identification signal. The identificati...
07/11/2006
7072590Fiber optic receiver with an adjustable bandwidth post-amplifier
In one aspect, the invention features a fiber optic receiver that includes a preamplifier circuit incorporated together with an opto-electronic transducer in a receiver optical sub-assembly (ROSA), and an adjustable bandwidth post-amplifier that is located outside t...
07/04/2006
7047427Disk subsystem
A power source control apparatus for a disk subsystem includes a plurality of hard disk drives (HDDs) each with two systems of fiber channel interface ports, an HDD drive section, and an HDD control logic section. The HDD drive section includes two systems of fiber ...
05/16/2006
7015458High density fiber optic output interface and system
A fiber optic control system for controlling remotely located devices. The control system includes an illumination source for producing a light beam and a plurality of optical fibers. Each fiber is arranged to receive a respective portion of a light beam at a coupli...
03/21/2006
7005969Power transfer apparatus for concurrently transmitting data and power over data wires
Power supply current, sufficient to power a remote network device, is transmitted concurrently with a network data signal over a transmission line. A power-sourcing network device that can include a coupling circuit provides power and data to the remote network devi...
02/28/2006
6995682Wireless remote control for a winch
A wireless winch control system having a wireless remote transmitter for transmitting AM/PWM modulated signals. A processor in the wireless remote transmitter periodically transmits control signals while a forward or reverse button remains pushed. Once the button is...
02/07/2006
6993258WDM transmitter
A WDM transmitter comprising an array of M pump lasers multiplexed by an M×N multiplexer, in the form of a coupler, and used to feed an array of N optically pumped fiber lasers emitting at wavelengths λ1, λ2, . . . λN. The parame...
01/31/2006
6948021Cluster component network appliance system and method for enhancing fault tolerance and hot-swapping
Packaging a hot-swappable server module (server blade) in a computer network appliance with shared, hot-swappable power, network, and management modules to provide highly available computer capacity. Distributing power between hot-swappable modules using single DC i...
09/20/2005
6259543Efficient method for assessing the system performance of an optical transmission system while accounting for penalties arising from nonlinear interactions
A method is provided for determining the system performance of an optical transmission system that supports an optical signal having a plurality of channels. The method begins by selecting a set of parameters defining characteristics of the transmission s...
07/10/2001
6259542Method and apparatus for monitoring dispersive-wave energy to indicate and optimize soliton transmission performance
An embodiment includes a gating device, a feedback device and a control device. Soliton pulses are received by the gating device, which detects and monitors a dispersive-wave between adjacent soliton pulses using a timing circuit. The timing circuit typic...
07/10/2001
6166836Power switching of optical fibre cable branching units
A branching unit for an optical fibre cable system of the type which has an electrical power conductor for feeding current to electrical equipment provided along a main cable and a communication system and method of operating such a system is disclosed. T...
12/26/2000
6160647Optoelectronic transmitter with improved control circuit and laser fault latching
An optoelectronic transmitter is provided including a semiconductor laser as the active optical transmitting element. The transmitter includes first and second printed circuit boards, with the first printed circuit board having mounted thereon electronic ...
12/12/2000
6111677Optical remote control interface system and method
The present invention is a method and apparatus for controlling a device by a remote controller. A receiving unit receives a first signal emitted by the remote controller and converts the received signal into a data stream. A communication medium carries ...
08/29/2000
6043917Passive electro-optical acoustic sensor
A telemetry system for receiving data from large arrays of sensors, in which the sensors are located in an unprotected environment, is implemented using fiber optic components. Laser sources, located in a protected environment, transmit light through the ...
03/28/2000
6028684Path to provide OTDR measurements of an optical transmission system that includes optical isolators
A path couples a pair of optical fibers in an optical transmission system. The transmission system includes a plurality of optical amplifiers placed along the transmission line. Associated with these optical amplifiers are optical isolators that limit the...
02/22/2000
6023358Apparatus for analyzing a multi-port optical network
An optical interface device for applying a light signal to a port of device under test and analyzing the signals leaving each of the ports on the device. The device to be tested has at least two such ports. An interface device according to the present inv...
02/08/2000
5969835Automated infrared test signal generator
An automated signal generator apparatus allows testing of remotely-controlled electronic devices to verify functionality and reliability, or for product set-up, initialization or configuration. The apparatus simulates a person pressing the keys on a remot...
10/19/1999
5910851Multiple wavelength transceiver
A communication system includes a plurality of detectors, each detector capable of detecting an electromagnetic wave of a respective different wavelength, a transmitter, the transmitter capable of generating an electromagnetic wave of one of the respectiv...
06/08/1999
5905585Optical bidirectional transmission system and method having transmission-line-disconnection detecting function
A first transmitting unit provided in a first station transmits a first optical signal to a second receiving unit provided in a second station via an optical transmission line, the first optical signal including first overhead information. A first receivi...
05/18/1999
5898512Link establishing system and link establishing method
A link establishing system according to the present invention is constituted by connecting between an upper device and a lower device a pair of optical transmission devices which have the same configuration and are connected with each other through an opt...
04/27/1999
5796504Fiber-optic telemetry system and method for large arrays of sensors
A telemetry system for receiving data from large arrays of sensors, in which the sensors are located in an unprotected environment, is implemented using fiber optic components. Laser sources, located in a protected environment, transmit light through the ...
08/18/1998
5615034Optical micro cell transmission system
An optical micro cell transmission system comprising a radio base station, at least one optical interface section connected to the radio base station, and an optical forward base station connected to the optical interface section via optical fibers for tr...
03/25/1997
5559626Energy resource sharing method and apparatus
A resource-sharing system enables multiple work areas to share an energy resource on a real-time, asynchronous basis in order to perform manufacturing processes. A specific embodiment involves a communication and control structure for a distributed laser ...
09/24/1996
5535033Contactless data transmission device
A contactless data transmission system includes a laterally emitting optical conductor connected to an electro-optical data transmitter. The optical conductor is formed by a bundle of optical fibers provided with a transparent cladding, so that the optica...
07/09/1996
5453866Method and system for sensing a physical quantity using analog optical signal transmission
A measurement system uses optical of the energy for a sensor and analog optical transmission of the measuring signals of the sensor. A feedback control system sets the working point of the optical transmission system for the measuring signals. A zero meas...
09/26/1995
5436746Optical transmission system
An optical transmission system comprises amplified forward and return paths between a local station and a remote station. Each amplifier of the forward path has an attenuated loopback coupling its output to the return path. Frequency modulated supervisory...
07/25/1995
5406402Faulty operation prevention circuit for infrared-ray remote controller
A faulty operation prevention circuit for an infrared-ray remote controller comprising inverter for inverting a transmission signal from the infrared-ray remote controller, a first pulse generation circuit for generating pulses in response to an output si...
04/11/1995
5333088Data transmission system
The system enables data from analogue state sensors S1 to S16, four of which may be direct frequency sensors, located in a ZONE 0 (1) environment, to be transmitted by a master transmitter 10 via a fibre optic data link 16 to a master receiver 14. The mas...
07/26/1994
5062153Reading device of polarimetric and interferometric sensors
A reading device of interferometric or polarimetric sensors including a main fiber on which a number of couplers equal to the number of sensors are placed, each coupler connected to a secondary compensation fiber, followed by a polarizer and a detector, t...
10/29/1991
5033112Closed loop, programmable power and communication system
A power and communication system for a building, and particularly a residential dwelling wherein there are provided a plurality of receptacles throughout the building, each connected by a cable to source, which may provide different voltages and either AC...
07/16/1991
4998294Opto-electrical power transmission and control system
A lase diode light source (21) is arranged to emit light of a desired intensity (I1), which is transmitted via an optical conductor (22). Light exiting the fiber has an intensity (I2), and falls incident on the receiver surface of a photodiode ...
03/05/1991
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