Patent application number | Description | Published |
20080240653 | OPTICAL COUPLER INCLUDING MODE-MIXING - A mode-mixer is used to introduce mode-mixing to an input in an optical coupler. As a result, modal noise effects are minimized in an output of the optical coupler. An example of a mode-mixer implemented includes a step index optical fiber which may or may not be coupled to a graded index optical fiber via a splice within an optical coupler. The splice may be a mechanical splice using connectors or a fused splice in some embodiments. The optical coupler may be included in a system for monitoring and/or analyzing a network. | 10-02-2008 |
20080298804 | TUNING SELECT FIBER OPTIC CHANNELS FOR CHANNEL MONITORING - A tunable element of a tuning module is receptive to optical data channels of a multiplexed optical data signal, each optical data channel having a different respective wavelength. The tunable element is responsive to different stimuli such that multiple passbands of the tunable element are defined, each passband corresponding to a respective stimulus and including no more than one wavelength of the optical data channels. An optical detector communicates with the tunable element and is receptive to no more than one optical data channel from the tunable element at any given time, an output of the optical detector is an electrical data signal that corresponds to the optical data channel received by the optical detector from the tunable element. A controller communicates with the tunable element and tunes the tunable element from one optical data channel to the other by causing application of a corresponding stimulus to the tunable element. | 12-04-2008 |
20090079544 | Periodic Detection Of Location Of Portable Articles Using An RFID System - A system for tracking network devices includes a host computing device, a radio frequency identification (RFID) tag secured to at least one of the network devices, and a reader configured to communicate with the RFID tag to receive device parameters from the RFID tag, the reader being configured to transmit the device parameters to the host computing device. | 03-26-2009 |
20090089885 | RADIO FREQUENCY IDENTIFIERS FOR PROVIDING USER ACCESS TO COMPUTING RESOURCES - A system for controlling access to computing resources including an authentication device operatively associated with a computing device, the authentication device being configured to transmit an interrogation signal to a predetermined area. A computing device has at least one software application resides thereon. A wireless license device is configured to transmit license information to the authentication device in response to the interrogation signal and to allow the software application to run while the wireless license device is within the predetermined area and to prevent the software application from running when the wireless license device is not within the predetermined area. | 04-02-2009 |
20090116846 | PROTOCOLS FOR OUT-OF-BAND COMMUNICATION - Methods for managing an optical network through out-of-band communication between optical transceiver modules in a heterogeneous network fabric are disclosed. The disclosed methods include methods for performing fabric discovery, communicating error messages, detecting intrusion. Methods are also disclosed for communicating between transceivers of differing protocol versions and memory capacity. | 05-07-2009 |
20090265142 | FAULT ANALYSIS AND MONITORING APPLICATIONS USING OUT-OF-BAND BASED MODULES - One example embodiment includes a testing device. The testing device comprises a signal reception element, an out-of-band detector and testing logic. The signal reception element is configured to receive a physical layer signal from a communication module via a physical link and to produce an incoming double modulated signal, the incoming double modulated signal including a high-speed data signal and an out-of-band data signal. The out-of-band data signal comprises diagnostic data of the communication module. The out-of-band detector is coupled to the signal reception element and is configured to extract the out-of-band data signal from the incoming double modulated signal. The testing logic is coupled to the out-of-band detector and is configured to extract and analyze the diagnostic data from the out-of-band data signal. | 10-22-2009 |
20090282290 | RECREATING ERRORS IN A NETWORK DEVICE - Recreating errors in a network device. In one embodiment, a method for recreating an error condition in a network device includes capturing a first set of commands sent to a network device; identifying an error condition in the network device, the error condition corresponding to the captured first set of commands; and sending a second set of commands to the network device in a second attempt to recreate the error condition. The second set of commands includes the first set of commands as well as additional commands that are configured to place the network device in substantially the same state as at the time that the first set of commands was sent to the network device. | 11-12-2009 |
20100046943 | SIMULATION OF OPTICAL CHARACTERISTICS OF AN OPTICAL FIBER - An optical communication apparatus that includes multiple optically communicative components positioned optically in series. Some of the optically communicative components may be optical fiber segments of perhaps different types. The optical channel represented by the series of optically communicative components and approximates a transfer function of an optical channel of a longer optical fiber. Accordingly, rather than deal with a lengthy optical fiber, an apparatus having a shorter optical channel may be used instead. The construction of the optical communicative components may be calculating an input transfer function. The construction would include an ordering of discrete optically communicative components that, when placed optically in series, simulates an estimation of a particular transfer function. Testing may then occur by actually passing an optical signal through the series construction of optically communicative components, rather than through the longer optical fiber. | 02-25-2010 |
20100095110 | OUT OF BAND ENCRYPTION - Embodiments of the invention relate to systems and methods for securing data transmission in networks. Embodiments of the invention further relate to encryption methods that dynamically adjust during the course of data transmission. Further, the encryption methods can adapt dynamically without user intervention. In one embodiment, an encryption scheme can be established, controlled, and monitored via out-of-band communication between transceiver modules. | 04-15-2010 |
20100124418 | TRANSMISSION OF EYE INFORMATION FROM OPTO-ELECTRONIC MODULES - A method of controlling communication between transceivers includes transmitting payload data from a transmitter of a first transceiver in a data channel of a physical link to a receiver of a second transceiver, the second transceiver further including an equalizer, varying equalizer settings in the equalizer, analyzing effects of varying equalizer settings to determine transmitter diagnostic settings for the first transceiver, and transmitting the transmitter diagnostic settings from a transmitter of the second transceiver in an out-of-band channel of a physical link to a receiver of the first transceiver a second transceiver in a data channel. | 05-20-2010 |
20120120851 | PROTOCOLS FOR OUT-OF-BAND COMMUNICATION - Methods for managing an optical network through out-of-band communication between optical transceiver modules in a heterogeneous network fabric are disclosed. The disclosed methods include methods for performing fabric discovery, communicating error messages, detecting intrusion. Methods are also disclosed for communicating between transceivers of differing protocol versions and memory capacity. | 05-17-2012 |
20120243866 | FAULT ANALYSIS AND MONITORING APPLICATIONS USING OUT-OF-BAND BASED MODULES - One example embodiment includes a testing device. The testing device comprises a signal reception element, an out-of-band detector and testing logic. The signal reception element is configured to receive a physical layer signal from a communication module via a physical link and to produce an incoming double modulated signal, the incoming double modulated signal including a high-speed data signal and an out-of-band data signal. The out-of-band data signal comprises diagnostic data of the communication module. The out-of-band detector is coupled to the signal reception element and is configured to extract the out-of-band data signal from the incoming double modulated signal. The testing logic is coupled to the out-of-band detector and is configured to extract and analyze the diagnostic data from the out-of-band data signal. | 09-27-2012 |