HISTOGRAM BASED OPTIMIZATION FOR OPTICAL MODULATION
First Claim
Patent Images
1. An optical transceiver apparatus comprising:
- an optical receiver for converting incoming optical signals to incoming electrical signals;
a histogram generation module configured to analyze the incoming electrical signals and to generate a histogram characterizing the incoming electrical signals;
a control module configured to process the incoming electrical signal and to generate a signal quality value based on the histogram, the signal quality value being calculated using a quadratic fit of the histogram, the signal quality value being associated with a first order coefficient of the quadratic fit;
a back-channel insertion module configured to insert the signal quality value to an outgoing data stream; and
an optical transmitter for generating output optical signals based on the outgoing data stream.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to communication systems and methods. In a specific embodiment, the present invention provides an optical receiver that receives a data stream from an optical transmitter. The optical receiver determines a histogram contour parameter using the data stream and inserts the histogram contour parameter into a back-channel data segment, which is then transmitted to the optical transmitter. The optical transmitter changes its data transmission setting based on the histogram contour parameter. There are other embodiments as well.
-
Citations
20 Claims
-
1. An optical transceiver apparatus comprising:
-
an optical receiver for converting incoming optical signals to incoming electrical signals; a histogram generation module configured to analyze the incoming electrical signals and to generate a histogram characterizing the incoming electrical signals; a control module configured to process the incoming electrical signal and to generate a signal quality value based on the histogram, the signal quality value being calculated using a quadratic fit of the histogram, the signal quality value being associated with a first order coefficient of the quadratic fit; a back-channel insertion module configured to insert the signal quality value to an outgoing data stream; and an optical transmitter for generating output optical signals based on the outgoing data stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A communication system, the system comprising:
-
a communication link; a first transceiver comprising a first control module and a first transmitter; and a second transceiver comprising a second control and a second transmitter, the second transceiver being configured to send data to the first transceiver; wherein; the first transceiver is configured to process a first data stream received from the second transceiver and to detect a first back channel data; if the first transceiver detects the first back channel data, the first transceiver is configured to determine a histogram contour parameter associated with the first data stream and insert the histogram contour parameter into a second back channel data, the second back channel data being embedded in a second data stream, the histogram contour parameter being associated with one or more quadratic fit coefficients; the second transceiver is configured to process the second data stream received from the first transceiver; the second transceiver is configured to increase or decreases an operating parameter based on a value of the quadratic fit coefficients. - View Dependent Claims (13, 14, 15)
-
-
16. A method for optimizing optical communication, the method comprising:
-
receiving a first data stream from a first optical transceiver by a second optical transceiver; detecting a first back-channel data segment at the first data stream by the second optical transceiver; determining a histogram contour parameter associated with the first data stream by the second optical transceiver, the histogram contour parameter being based on a first order coefficient of a quadratic fit; generating a second back-channel data by the second optical transceiver, the second back-channel data comprising the first order coefficient; inserting the second back-channel data to a second data stream by the second optical transceiver; transmitting the second data stream from the second optical transceiver to the first optical transceiver; and adjusting one or more operating parameters by the first optical transceiver based on the second back-channel data. - View Dependent Claims (17, 18, 19, 20)
-
Specification