Finisar Corporation

Finistar, Inc.

Finsiar Corporation

Lucy G Hosking

Lewis B Aronson

James Edward Stewart

Anthony Ho

Andreas G Weber

Gayle L Noble

Luke M Ekkizogloy

Darin James Douma

Henry Meyer Daghighian

Gerald L Dybsetter

Jayne Catherine Hahin

Frank J Flens

Stephen T Nelson

Rudolf J Hofmeister

Greta Light

Joshua Moore

Theron Jones

Andrew Zocher

Rafik Ward

Cindy Hsin-I Hsieh

Donald Arthur Ice

Mark J Farley

Jiashu Chen

Gilles P Denoyer

Rudy Hofmeister

Ricardo Saad

Lew Aronson

Jingcheng Zhang

Jeffrey Bryant Price

Marcin Matuszkiewicz

Daniel K Case

Stephan C Burdick

Curtis Robinson

Mark D Brockmann

James L Noble

Beck Mason

Greta L Light

Embodiments of a device and method to automatically acquire signal quality metrics in a digital communication system are disclosed. The device may include acquisition means to sample the likelihood of a digital communication signal passing through a grid of time and amplitude regions, and storage means by which such likelihood measurements may be accumulated in a computer memory array for analysis. A state machine may execute a method that controls both the acquisition means and the storage means, requiring minimal intervention from supervisory systems.

Light-weight on-chip signal monitor with integrated memory management and data collection

An example embodiment includes an optoelectronic module. The optoelectronic module may be configured to transmit out-of-band (OOB) data as an average optical power difference between optical signals. The optoelectronic module may include a first optical source, a second optical source, and an optical power control device. The first optical source may be configured to generate a first optical signal including first channel payload data on a first optical channel. The second optical source may be configured to generate a second optical signal including second channel payload data on a second optical channel. The optical power control device may be configured to vary average optical powers of one or more of the first optical signal and the second optical signal to create an average optical power difference between the first optical signal and the second optical signal that is representative of a logical bit of the OOB data.

Rapid out-of-band signal communication in optical components

A method to measure and report electromagnetic radiation power includes receiving electromagnetic radiation and generating an electrical signal having a magnitude based on the power of the electromagnetic radiation. An adjustable gain may be applied to the electrical signal to generate an amplified electrical signal that may be sampled to generate a digital sample. The adjustable gain may be controlled based on the value of the digital sample and the digital sample may be associated with a gain value. One or more calibration factors may be selected based on the gain value associated with the digital sample and the selected calibration factor(s) may be used to calculate the power of the electromagnetic radiation.

Electromagnetic power measurement and reporting

Communication devices are disclosed. In an example embodiment, a communication device may include a communication module including an illumination source and a body element. The body element may be configured to allow illumination generated by the illumination source to propagate within and illuminate at least a portion of an outer surface of the body element.

Communication devices including an illumination source and a physical input sensor

An out-of-band (OOB) signal detector is disclosed. The OOB signal detector may include a first node configured to receive an alternating current (AC) portion and a direct current (DC) portion of an electrical signal. The AC portion may include modulated OOB data carried by the electrical signal. The OOB signal detector may also include a current to voltage processing circuit configured to extract the AC portion of the electrical signal. The OOB signal detector may additionally include a limiting amplifier circuit configured to receive the extracted AC portion and to generate an amplified signal based on the extracted AC portion. The OOB signal detector may further include an analog-to-digital convertor circuit configured to sample the amplified signal and to generate a digital sample that represents the modulated OOB data.

Out-of-band signal detection

An optoelectronic transceiver includes an optoelectronic transmitter, an optoelectronic receiver, memory, and an interface. The memory is configured to store digital values representative of operating conditions of the optoelectronic transceiver. The interface is configured to receive from a host a request for data associated with a particular memory address, and respond to the host with a specific digital value of the digital values. The specific digital value is associated with the particular memory address received from the host. The optoelectronic transceiver may further include comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag values are stored as digital values in the memory.

Method of monitoring an optoelectronic transceiver with multiple flag values for a respective operating condition

A method to measure and report electromagnetic radiation power includes receiving electromagnetic radiation and generating an electrical signal in response to the received electromagnetic radiation. The electrical signal may have a magnitude based on the power of the electromagnetic radiation. The method also includes applying a logarithmic gain to the electrical signal to generate a logarithmically amplified electrical signal. The method also includes sampling the logarithmically amplified electrical signal to generate a digital sample of the logarithmically amplified electrical signal.

The circuit monitors operation of an optoelectronic transceiver that includes a laser transmitter and a photodiode receiver. The circuit includes analog to digital conversion circuitry configured to convert a first analog signal corresponding to a first operating condition of said optoelectronic transceiver into a first digital value, and convert a second analog signal corresponding to a second operating condition of said optoelectronic transceiver into a second digital value corresponding to a second operating condition. The circuit also includes a memory configured to store the first digital value in a first memory location that is mapped to a predefined and unique first address and to store the second digital value in a second memory location that is mapped to a predefined and unique second address. The circuit includes an interface configured to enable a host external to the optoelectronic transceiver to access the first digital value using the first address and to access the second digital value using the second address.

Communication devices including a sensor configured to detect physical input

Growing community of inventors

Santa Cruz, CA, United States of America

Lucy G Hosking