SERIALIZER/DESERIALIZER TEST MODES
Granted: April 22, 2010
Application Number:
20100097942
Serializer, deserializer, and/or serdes ICs are configured to support one or more test modes to enable end-to-end testing in communication links in which the ICs are implemented. To support the end-to-end testing, the ICs can include a multiplexing stage with means for deterministically mapping a plurality of input parallel data signals to at least one output serial data signal and/or a demultiplexing stage with means for deterministically mapping at least one input serial data signal to…
Active Linear Amplifier Inside Transmitter Module
Granted: April 15, 2010
Application Number:
20100092184
In one example embodiment, a transmitter module includes a header electrically coupled to a chassis ground. First and second input nodes are configured to receive a differential data signal. A buffer stage has a first node coupled to the first input node and a second node coupled to the second input node. An amplifier stage has a fifth node coupled to a third node of the buffer stage and a sixth node coupled to a signal ground that is not coupled to the chassis ground. An optical…
OUT OF BAND ENCRYPTION
Granted: April 15, 2010
Application Number:
20100095110
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.
PRINTED CIRCUIT BOARD POSITIONING IN AN OPTOELECTRONIC MODULE
Granted: April 1, 2010
Application Number:
20100080518
Printed circuit board (PCB) positioning in an optoelectronic module. In one example embodiment, a spacer can be use to position top and bottom PCBs that are at least partially enclosed within top and bottom shells of an optoelectronic module. The spacer includes top and bottom surfaces and a plurality of top posts extending from the top surface. The top posts are configured to extend through openings in the top PCB to contact inside surfaces of the top shell.
Baseband Phase-Locked Loop
Granted: March 18, 2010
Application Number:
20100067636
An example method includes receiving a phase correction signal representing a phase difference between a source signal and a reference signal, generating a first control voltage from the phase correction signal using a charge pump circuit, generating a second control voltage from the phase correction signal in response to a digitally filtered version of the phase correction signal, wherein the second control voltage corrects for an offset error present in the first control voltage,…
OPTOELECTRONIC MODULE FORM-FACTOR ADAPTER
Granted: March 11, 2010
Application Number:
20100061069
In one example embodiment, an adapter module includes a body having a first form-factor and multiple receptacles extending into the body. Each of the receptacles is configured to receive an optoelectronic module having a second form-factor. The second form-factor is smaller than the first form-factor. The first form-factor may substantially conform to the CFP MSA, for example. The second form-factor may substantially conform to the SFP+ or QSFP MSA, for example.
ACCESSING TRANCEIVER LINK INFORMATION FROM HOST INTERFACE
Granted: March 4, 2010
Application Number:
20100054733
Embodiments of the present invention include systems and methods for accessing the digital diagnostic data and controller data of a remote transceiver module via the diagnostic port of a local transceiver. The invention involves modulating high-speed data and out-of-band data as a double modulated signal, wherein the out-of-band data includes the remote transceiver controller and digital diagnostic data, which is subsequently accessible by an external user device from the diagnostic port…
FIBER OPTIC TRANSCEIVER MODULE WITH OPTICAL DIAGNOSTIC DATA OUTPUT
Granted: March 4, 2010
Application Number:
20100054734
Exemplary embodiments of the invention relates to an optical transceiver module having a diagnostic assembly, wherein the diagnostic assembly is configured to visually display the operational status of the transceiver transmitter and receiver components while optically transmitting diagnostic information. The transceiver operational status is accessible while the transceiver operates in conjunction with an external host and may be ascertained in real time without interrupting normal…
COMBINATION NETWORK FIBER CONNECTOR AND LIGHT PIPE
Granted: March 4, 2010
Application Number:
20100054749
Exemplary embodiments of the invention relate to an optical transceiver in which the base portion is made of a light permeable material and configured to emit light representative of the status of certain transceiver parameters. The transceiver includes a housing which at least partially encloses the base portion. The base portion connects to a printed circuit board on which a light-emitting diode is mounted. Light from the light-emitting diode is conducted to front portion of the base,…
AC DIFFERENTIAL CONNECTION ASSEMBLY BETWEEN A TRANS-IMPEDANCE AMPLIFIER AND A POST AMPLIFIER FOR BURST MODE RECEIVING
Granted: February 25, 2010
Application Number:
20100045345
An AC differential connection assembly between a trans-impedance amplifier and a post amplifier for burst mode receiving comprising means for coupling a differential output of the trans-impedance amplifier to a differential input of the post amplifier, the means for coupling comprises a coupling capacitor assembly; and a switching circuit coupled across the differential input of the post amplifier, the switching circuit having an ‘on’ state with low impedance and an ‘off’ state…
SIMULATION OF OPTICAL CHARACTERISTICS OF AN OPTICAL FIBER
Granted: February 25, 2010
Application Number:
20100046943
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…
CFP MECHANICAL PLATFORM
Granted: February 18, 2010
Application Number:
20100039785
In one example embodiment, a pluggable optoelectronic module includes a shell with a front, back, and first and second sides. A first guiderail protrudes from the first side and extends from the front of the shell to the back of the shell. A second guiderail protrudes from the second side and also extends from the front of the shell to the back of the shell. A first thumbscrew runs the length of the module and is housed within the first guiderail. A second thumbscrew also runs the length…
HIGH-POWER OPTICAL BURN-IN
Granted: February 18, 2010
Application Number:
20100039134
Semiconductor lasers are aged to identify weak or flawed devices, resulting in improved reliability of the remaining devices. The lasers can be aged using a high-power optical burn-in that includes providing a high drive current to the lasers for a period of time, and maintaining the ambient temperature of the lasers at a low temperature. After the high-power optical burn-in, the output of the lasers can be measured to determine if the lasers are operating within specifications. Those…
CFP MECHANICAL PLATFORM
Granted: February 18, 2010
Application Number:
20100039778
In one example embodiment, a host device includes a host bezel, first and second guides, and a host connector. The host bezel defines an opening configured to receive a pluggable module. A first cutout on one side of the opening and a second cutout on the opposite side of the opening are adapted to receive corresponding guiderails on the module. The first and second guides are coupled to the host bezel and to a host printed circuit board. Each of the first and second guides defines a…
NETWORK LOAD TESTER WITH REAL-TIME DETECTION AND RECORDING
Granted: February 11, 2010
Application Number:
20100034100
A load tester is configured to generate traffic streams for testing a network. The traffic streams can include one or more stream objects. Each stream object can be characterized by a unique identifier and can include a fixed number of frames. The frames can share the same S_ID and D_ID while being characterized by a unique sequence count. The load tester can receive a plurality of frames, all or some of which belong to a stream object, and analyze the received frames in real-time to…
FIBEROPTIC TRANSCEIVER MODULE WITH INTEGRAL STATUS INDICATORS
Granted: February 4, 2010
Application Number:
20100028014
Exemplary embodiments of the invention relate to an optical transceiver module having a status indicator assembly, wherein the status indicator assembly is configured to visually display the operational status of the transceiver transmitter and receiver components. The operational status is accessible while the transceiver operates in conjunction with an external host and may be ascertained in real time without interrupting normal transceiver operation or suspending the transmission of…
BACKDOOR DIAGNOSTIC COMMUNICATION TO TRANSCEIVER MODULE
Granted: February 4, 2010
Application Number:
20100028015
Exemplary embodiments of the invention relate to an optical transceiver module having a diagnostic communications link, wherein the link is configured to access diagnostic and other data contained within the transceiver controller via a backdoor interface. Controller data, including operational parameter values and module setup values, is accessible while the transceiver operates in conjunction with an external host and may be retrieved, and sometimes modified, in real time without…
OPTICAL TRANSCEIVER WITH LED LINK INFORMATION INDICATOR
Granted: February 4, 2010
Application Number:
20100027991
Exemplary embodiments of the invention relate to an analyzer device configured to interface with an optical transceiver module having a diagnostic communications port, wherein the port is configured to access diagnostic and other data contained within the transceiver controller via a backdoor interface. Controller data, including operational parameter values and module setup values, is accessible while the transceiver operates in conjunction with an external host and may be retrieved,…
LOADING AND EXECUTING FIRMWARE MODULE WITHOUT RESETTING OPERATION
Granted: January 14, 2010
Application Number:
20100011134
A host communicates a firmware module to an electronic device utilizing a data communication interface (e.g., I2C). The host may also communicate a set of values representing information associated with execution of the firmware module to the electronic device. The host may utilize commands and/or flags to execute the firmware module at the electronic device. The electronic device executes the firmware module without resetting/suspending an ongoing execution of the electronic device. In…
Phase Shift Keyed Modulation of Optical Signal Using Chirp Managed Laser
Granted: January 14, 2010
Application Number:
20100008679
A high-speed optical transmitter comprises multiple digital lanes that are provided to a bank of digital-to-analog converters. The analog signals are then used to Phase Shift Keyed (PSK) modulation using a Chirp Managed Laser (CML)-based transmitter, and potentially using dual polarization. A corresponding optical receiver receives the sequence of optical signals at a demodulator. For each polarization, the demodulator includes a corresponding demodulation channel that is configured to…
