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Class Information
Number: 398/193
Name: Optical communications > Transmitter > Including compensation > Precompensation (e.g., prechirping, predistortion
Description: Subject matter including compensating means at the tra nsmitter for reducing or canceling distortion or noise that is expected to happen later in the optical communication system.

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8712251 Transport of multiple asynchronous data streams using higher order modulation Apr. 29, 2014
8712252 Optical signal output apparatus, electrical signal output apparatus, and test apparatus Apr. 29, 2014
8712253 Optical packet signal transmission device and WDM optical communication network Apr. 29, 2014
8705982 System and method for reducing memory requirements for electrical domain compensation of intra-channel nonlinearity in an optical communications system Apr. 22, 2014
8693875 Method and apparatus for optimized analog RF optical links Apr. 8, 2014
8687968 Vector sum phase shifter, optical transceiver, and control circuit Apr. 1, 2014
8682179 Protection switching with transmitter compensation function Mar. 25, 2014
8678669 Reconfigurable polarity detachable connector assembly Mar. 25, 2014
8670675 System and method for distortion compensation including configureable delay Mar. 11, 2014
8660207 Digital pre-distortion with carrier cancellation Feb. 25, 2014
8660434 Printed circuit board and optical transmission device Feb. 25, 2014
8654439 Look-up table and digital transmitter based architecture for fiber nonlinearity compensation Feb. 18, 2014
8655188 Driver and optical transmission apparatus Feb. 18, 2014
8630369 Emphasis circuit and transmitter Jan. 14, 2014
8630545 Multimode optical system Jan. 14, 2014
8611763 Phase noise compensation in coherent optical communications systems Dec. 17, 2013
8606116 System and method for distortion compensation in response to frequency detection Dec. 10, 2013
8594510 Light module, illumination system and method incorporating data in light emitted Nov. 26, 2013
8594515 Digital phase conjugation for fiber-optic links Nov. 26, 2013
8571137 Distortion and aliasing reduction for digital to analog conversion Oct. 29, 2013
8571155 Distortion and aliasing reduction for digital to analog conversion Oct. 29, 2013
8520724 Pipelining and sub-rate operation for memory links Aug. 27, 2013
8521020 Forward error correction (FEC) enabled photonic integrated circuit (PIC) chips with multiple signal channels Aug. 27, 2013
8514966 High-performance faster-than-nyquist (FTN) signaling schemes Aug. 20, 2013
8514960 Apparatus and method for compensating feedback path distortion Aug. 20, 2013
8509340 Signal transmission system Aug. 13, 2013
8509345 Crest factor reduction with phase optimization Aug. 13, 2013
8509347 Method and system for baseband predistortion linearization in multi-channel wideband communication systems Aug. 13, 2013
8498542 Multi-channel optical transceiver with offset quadrature amplitude modulation Jul. 30, 2013
8494378 Synchronous optical signal generating device and synchronous optical signal generating method Jul. 23, 2013
8494377 Systems, circuits and methods for conditioning signals for transmission on a physical medium Jul. 23, 2013
8488975 Optical transmitter, optical transmitter and receiver system, optical transmitting method and optical transmitting and receiving method Jul. 16, 2013
8483565 Pluggable conversion module for a data transport card of a wavelength division multiplexing system Jul. 9, 2013
8483577 Programmable signal emphasis for optical transmitters Jul. 9, 2013
8478131 Optical communication system having enhanced spectral efficiency using electronic signal processing Jul. 2, 2013
8478134 Compression of generated optical continuum utilizing higher-order-mode fiber Jul. 2, 2013
8467687 Optical transmitter and optical OFDM communication system Jun. 18, 2013
8463138 Multi-value optical transmitter Jun. 11, 2013
8463137 System and method for transmissions via RF over glass Jun. 11, 2013
8428110 Pipelining and sub-rate operation for memory links Apr. 23, 2013
8428473 Stable millimeter wave source for broadband wireless signal transmission using optical fibre Apr. 23, 2013
8411791 Distortion and aliasing reduction for digital to analog conversion Apr. 2, 2013
8406340 Distortion and aliasing reduction for digital to analog conversion Mar. 26, 2013
8401394 Method for non-flutter transmission of digital data in a free-space optical transmission system Mar. 19, 2013
8391724 Optical modulator, optical transmission device, and bias adjusting method Mar. 5, 2013
8385748 Printed circuit board and optical transmission device Feb. 26, 2013
8385752 Laser diode driver with back terminator and optical transmitter providing the same Feb. 26, 2013
8385466 Transmitting a signal from a power amplifier Feb. 26, 2013
8380085 High-speed multi-level electronic signal generation for optical communications Feb. 19, 2013
8369712 Dispersion compensation circuitry and system for analog video transmission with direct modulated laser Feb. 5, 2013

1 2 3 4 5 6 7

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