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Class Information
Number: 398/185
Name: Optical communications > Transmitter > Having particular modulation > Hybrid modulation
Description: Subject matter includes a) plurality of modulators or b) more than one type of modulation techniques.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616902 |
Power source for a dispersion compensation fiber optic system |
Nov. 10, 2009 |
| 7613401 |
Optical FM source based on intra-cavity phase and amplitude modulation in lasers |
Nov. 3, 2009 |
| 7599627 |
Method and system for a polarization mode dispersion tolerant optical homodyne detection system with optimized transmission modulation |
Oct. 6, 2009 |
| 7599628 |
Method for modulating an optical signal and optical transmitter |
Oct. 6, 2009 |
| 7596325 |
Method and apparatus for pulse-amplitude equalization of rational harmonic mode-locked optical signal |
Sep. 29, 2009 |
| 7583896 |
Optical-wireless hybrid transmission system and optical-wireless hybrid transmission method |
Sep. 1, 2009 |
| 7577367 |
Optical communication using duobinary modulation |
Aug. 18, 2009 |
| 7561806 |
Method and system for keeping timing alignment between driving signals in optical double modulation |
Jul. 14, 2009 |
| 7558487 |
Multilevel amplitude and phase encoded signal generation |
Jul. 7, 2009 |
| 7555225 |
Optical system comprising an FM source and a spectral reshaping element |
Jun. 30, 2009 |
| 7555224 |
Using superimposed ASK label in an all-optical label swapping system and method thereof |
Jun. 30, 2009 |
| 7555223 |
UWB signal generator using optical FSK modulator |
Jun. 30, 2009 |
| 7555222 |
Multiformat transmitter |
Jun. 30, 2009 |
| 7555061 |
Optical communication device |
Jun. 30, 2009 |
| 7542683 |
Chirp Managed Laser (CML) transmitter |
Jun. 2, 2009 |
| 7536112 |
Optical transmission system |
May. 19, 2009 |
| 7536113 |
Chirp managed directly modulated laser with bandwidth limiting optical spectrum reshaper |
May. 19, 2009 |
| 7515834 |
Upgraded optical communication system with increased transmission capacity and method |
Apr. 7, 2009 |
| 7515832 |
Optical transmission equipment and integrated circuit |
Apr. 7, 2009 |
| 7515833 |
Optical double sideband modulation technique with increased spectral efficiency |
Apr. 7, 2009 |
| 7486897 |
Polarization duobinary optical transmitter |
Feb. 3, 2009 |
| 7483635 |
Multi-wavelength pulse generator using time-lens compression |
Jan. 27, 2009 |
| 7483640 |
Optical multilevel-coded signal transmission system and method thereof, optical transmitter, and multilevel-coded signal light generating method |
Jan. 27, 2009 |
| 7471903 |
Optical communication system |
Dec. 30, 2008 |
| 7450861 |
Return-to-zero alternative-mark-inversion optical transmitter and method for generating return-to-zero alternative-mark-inversion optical signal using the same |
Nov. 11, 2008 |
| 7447443 |
Method and system for keeping time alignment between optical data modulation and a periodically modulated light source |
Nov. 4, 2008 |
| 7433605 |
Adiabatic frequency modulated transmitter with negative chirp |
Oct. 7, 2008 |
| 7426349 |
Method of signal transmission in a WDM communication system |
Sep. 16, 2008 |
| 7424228 |
High dynamic range radio frequency to optical link |
Sep. 9, 2008 |
| 7421209 |
Optical wavelength multiplexing FSK modulation method |
Sep. 2, 2008 |
| 7418209 |
System and method for multi-dimensional encoding |
Aug. 26, 2008 |
| 7418211 |
Control apparatus and control method for optical modulator |
Aug. 26, 2008 |
| 7409163 |
Method and apparatus for optical signal transmission |
Aug. 5, 2008 |
| 7406267 |
Method and apparatus for transmitting a signal using thermal chirp management of a directly modulated transmitter |
Jul. 29, 2008 |
| 7398023 |
Method and apparatus for bias and alignment control in an optical signal transmitter |
Jul. 8, 2008 |
| 7398022 |
Optical return-to-zero phase-shift keying with improved transmitters |
Jul. 8, 2008 |
| 7394992 |
Control of an optical modulator for desired biasing of data and pulse modulators |
Jul. 1, 2008 |
| 7389053 |
Tunable filtering of RF or microwave signals based on optical filtering in Mach-Zehnder configuration |
Jun. 17, 2008 |
| 7376358 |
Location specific optical monitoring |
May. 20, 2008 |
| 7376352 |
Chirp managed laser fiber optic system including an adaptive receiver |
May. 20, 2008 |
| 7369780 |
Remodulating channel selectors for WDM optical communication systems |
May. 6, 2008 |
| 7366424 |
Methods and apparatus for producing transmission failure protected, bridged, and dispersion resistant signals |
Apr. 29, 2008 |
| 7362978 |
Duobinary optical transmission apparatus |
Apr. 22, 2008 |
| 7352968 |
Chirped managed, wavelength multiplexed, directly modulated sources using an arrayed waveguide grating (AWG) as multi-wavelength discriminator |
Apr. 1, 2008 |
| 7349636 |
Optical phase and intensity modulation with improved transmitters |
Mar. 25, 2008 |
| 7346283 |
Method and apparatus for CRZ-DQPSK optical signal generation |
Mar. 18, 2008 |
| 7340168 |
System and method for optically labeled packet transmission |
Mar. 4, 2008 |
| 7324761 |
Single sideband optical transmitter |
Jan. 29, 2008 |
| 7324760 |
Apparatus and method for phase synchronization control in RZ optical transmitter |
Jan. 29, 2008 |
| 7324757 |
USB communication transceiver using optical link |
Jan. 29, 2008 |
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