BURST MODE DIGITAL DIAGNOSTIC AND CONTROL FOR PASSIVE OPTICAL NETWORK RECEIVING
Granted: July 31, 2008
Application Number:
20080181603
Methods and systems for an optical line termination including instructions stored on a computer-readable medium, the instructions including a digital diagnostic table, and a plurality of entries within the diagnostic table, wherein a first entry is associated with a first optical network unit, the first entry including at least one setting for performing burst mode digital diagnostic processes using a first burst mode transmission received from the first optical network unit.
Method and apparatus for generating signals with increased dispersion tolerance using a directly modulated laser transmitter
Granted: July 31, 2008
Application Number:
20080181619
An optical transmitter is disclosed wherein a modulating signal, such as an NRZ signal, encoding data is combined with a time derivative of the modulating signal and coupled to a directly modulated laser in order to generate artificial transient chirp in the output of the laser effective to substantially compensate for dispersion experienced by the output of the laser traveling through a dispersive medium such as an optical fiber. In some embodiments, the time derivative is added to the…
TAPPING SYSTEMS AND METHODS
Granted: July 31, 2008
Application Number:
20080183939
A device may include a link configured to transmit signals. The signals may provide at least one network topology, such as a bus. A tapping structure may be connected to the device using, for example, at least one of a snap fit, a friction fit or an interference fit. The tapping structure may be configured to tap in-band signals, out-of-band signals, or both in-band signals and out-of-band signals.
PROCESSING REGISTER VALUES IN MULTI-PROCESS CHIP ARCHITECTURES
Granted: July 31, 2008
Application Number:
20080181210
In a computing environment, a method includes receiving a first data packet at a first kick code from a first stage, the kick code being configured to process data packets individually and the first stage being configured to perform one or more tasks, updating one or more counters using the first kick code based on determinations made in the one or more tasks performed at the first stage; and directing the first data packet to a another stage.
Optical Transmitter Having a Widely Tunable Directly Modulated Laser and Periodic Optical Spectrum Reshaping Element
Granted: July 10, 2008
Application Number:
20080166134
An optical transmitter is disclosed including a widely tunable laser coupled to a periodic optical spectrum reshaper (OSR) to convert frequency modulated pulses from the laser into amplitude modulated pulses. The laser is tuned to generate pulses corresponding to passbands of the OSR spanning a wide range of frequencies. The laser includes a gain section having an optical path length substantially shorter than the total optical path length of the laser. The laser may be a Y-branch laser…
HIGH EFFICIENCY THERMOELECTRIC COOLER CONTROL SYSTEM
Granted: July 3, 2008
Application Number:
20080159348
A temperature control system is provided for efficiently controlling the temperature of an optical transmitter such as a laser diode. The temperature control system of the present invention reduces power consumption and achieves a higher efficiency by employing a voltage controller and a high-efficiency DC-DC step-down converter between the TEC controller, which drives the thermoelectric cooler, and the microcontroller, which governs the optical transmitter operation. The voltage…
TRANSCEIVERS FOR TESTING NETWORKS AND ADAPTING TO DEVICE CHANGES
Granted: July 3, 2008
Application Number:
20080159737
Test transceivers are disclosed for testing optical networks. The test transceivers generate one or more errors on a network in a specific, reproducible way, thereby enabling a tester to easily and readily identify whether network devices are operating properly, or prone to failure. A corrective transceiver is also disclosed. The corrective transceiver is configured to continually detect operating parameters of one or more network devices in a network. The corrective transceiver can…
Integral Phase Rule for Reducing Dispersion Errors in an Adiabatically Chirped Amplitude Modulated Signal
Granted: July 3, 2008
Application Number:
20080159747
An optical transmitter is disclosed for transmitting a signal along a dispersive medium to a receiver. The optical transmitter generates adiabatically chirped profile having an initial pulse width and frequency excursion chosen such that high frequency data sequences include one bits that interfere destructively at a middle point of an intervening zero bit upon arrival at the receiver.
OPTICAL CONNECTOR LATCH ASSEMBLY FOR AN OPTOELECTRONIC MODULE
Granted: June 19, 2008
Application Number:
20080145003
An optical connector latch assembly for an optoelectronic module that can releasably engage an optical fiber connector that is received in a receptacle of the optoelectronic module. In one example embodiment, an optical connector latch arm includes a base, a shaft extending from the base, and a hook extending from the shaft. In this example embodiment, the base defines a complementary structure that is configured to engage a complementary structure of an OSA connector block. Also, the…
LATCH ASSEMBLY FOR AN OPTOELECTRONIC MODULE
Granted: June 19, 2008
Application Number:
20080146066
A module that includes a housing and a latch assembly at least partially positioned within the housing. The latch assembly has first and second associated states, and includes an actuation sleeve having a first position that corresponds with the first state, and a second position that corresponds with the second state. The latch assembly further includes first and second latch arms operably disposed with respect to the actuation sleeve so that respective first and second cam arrangements…
COMMUNICATIONS DEVICE
Granted: June 19, 2008
Application Number:
20080145006
A communications device may include a connector block. The connector block may include a port. The port may be sized and configured to couple an optical fiber plug. The communications device may include an optical subassembly that may be connected to the connector block. The connector block may include a mount. The mount may be sized and configured to align the connector block and the optical subassembly. The mount may be configured as an EMI shield.
COMMUNICATIONS DEVICE
Granted: June 19, 2008
Application Number:
20080145004
A communications device may include a connector block. The connector block may include a port. The port may be sized and configured to couple an optical fiber plug. The communications device may include an optical subassembly that may be connected to the connector block. The connector block may include a mount. The mount may be sized and configured to align the connector block and the optical subassembly. The mount may be configured as an EMI shield.
OPTICAL SUBASSEMBLY CONNECTOR BLOCK FOR AN OPTOELECTRONIC MODULE
Granted: June 19, 2008
Application Number:
20080145002
An optical subassembly (“OSA”) connector block that can accommodate OSAs of a variety of different configurations. In one example embodiment, an OSA connector block includes a body. The body of the OSA connector block includes a first end defining a receptacle, and a second end defining a cavity. The receptacle is configured to receive at least a portion of an optical fiber connector. The cavity is configured to receive at least a portion of an OSA.
ELECTROMAGNETIC INTERFERENCE SHIELD FOR AN OPTOELECTRONIC MODULE
Granted: June 19, 2008
Application Number:
20080144303
An electromagnetic interference (“EMI”) shield that can help control the emission of electromagnetic radiation from an optoelectronic module in which the EMI shield is positioned. In one example embodiment, an EMI shield includes a base and plurality of flanges extending from a perimeter of the base. The base defines an optical subassembly (“OSA”) opening and a plurality of complementary structures. The OSA opening is configured to receive an OSA. Each complementary structure is…
VCSEL ON SILICON INTEGRATED CIRCUIT
Granted: June 12, 2008
Application Number:
20080135787
Vertical Cavity Surface Emitting Laser (VCSEL) on silicon substrate. One embodiment described herein includes an apparatus with functionality for communicating optical signals on a silicon integrated circuit chip. The apparatus includes a silicon based integrated circuit chip die. An optical waveguide is formed at the silicon based integrated circuit chip die. A vertical cavity surface emitting laser (VCSEL) is mechanically coupled to the silicon base integrated circuit chip die and…
ELECTROMAGNETIC RADIATION CONTAINMENT AND HEAT MANAGEMENT IN AN ELECTRONIC MODULE
Granted: June 12, 2008
Application Number:
20080137306
In one example, and electromagnetic radiation containment system includes an electrically conductive shroud configured to be mounted to a ground plane of a host board, the electrically conductive shroud defining an opening by way of which an edge connector of an electronic module can be received, the electrically conductive shroud sized and configured to substantially enclose a host board connector mounted to the host board. The electromagnetic radiation containment system further…
OPTICAL REFLECTOMETRY USING INTEGRATED VCSEL PHOTODIODE CHIP
Granted: June 5, 2008
Application Number:
20080129983
Optical time domain and frequency domain reflectometry using a VCSEL-photodiode combination. Optical time domain reflectometry can be accomplished using an integrated VCSEL-Photodiode. A pulse is emitted by the VCSEL and a reflection caused by an occurrence of interest along an optical waveguide is detected by the photodiode. The time between when the pulse is emitted and when the reflection is received can be used to determine a distance to the occurrence of interest. In Optical…
INTERFACE ARCHITECTURE FOR CONFIGURING A SERIAL CONTROLLER
Granted: May 29, 2008
Application Number:
20080126587
An architecture and method in an integrated circuit for configuring a controller to facilitate communication with a plurality of external device interfaces. The integrated circuit includes a processor, a first memory, a second memory, including a plurality of dedicated memory blocks containing configuration data, and a plurality of external device interfaces. The processor is configured to write a microcode instruction to the first memory. The controller is configured to read the…
MULTIPLE BUS INTERFACE CONTROL USING A SINGLE CONTROLLER
Granted: May 29, 2008
Application Number:
20080126619
Mechanisms for configuring an integrated circuit to select one of multiple external device interfaces at a time to use during communication with external devices. The integrated circuit includes a control mechanism, a selection mechanism, and a plurality of external device interfaces. The plurality of device interfaces allow the integrated circuit to communicate with various external devices that support different communication protocols. The control mechanism is configured to designate…
ARM AND ROLLBACK IN A MULTI-CHASSIS SYSTEM
Granted: May 29, 2008
Application Number:
20080126874
A multi-chassis system includes at least a first chassis and a second chassis that each includes one or more blades. The one or more blades in turn include one or more ports. The two or more chassis are connected through use of an interconnector. The multi-chassis system may also include access to one or more microprocessors that may execute thereon software that controls the propagation of the arm condition. The arm condition is generated at a first port of a first chassis or network…
