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Class Information
Number: 398/155
Name: Optical communications > Transmitter and receiver system > Including synchronization > Clock recovery
Description: Subject matter wherein a clock signal is recover ed from the transmitted light waves.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8712243 Methods and apparatus for achieving multiple bit rates in passive optical networks Apr. 29, 2014
8712247 Clock phase recovery apparatus Apr. 29, 2014
8687968 Vector sum phase shifter, optical transceiver, and control circuit Apr. 1, 2014
8687973 Voltage generator, control circuit, vector sum phase shifter, and optical transceiver Apr. 1, 2014
8655191 Symbol timing recovery in polarization division multiplexed coherent optical transmission system Feb. 18, 2014
8649685 Light receiving device and light receiving method Feb. 11, 2014
8644713 Optical burst mode clock and data recovery Feb. 4, 2014
8630546 Network interface device synchronization Jan. 14, 2014
8600239 Precise clock synchronization over optical fiber Dec. 3, 2013
8600235 Network with sourceless clients Dec. 3, 2013
8571422 Burst transmission method, and receiver resetting method and apparatus in a passive optical network Oct. 29, 2013
8564407 Universal infrared receiving apparatus and associated method Oct. 22, 2013
8565605 Burst mode to continuous mode converter Oct. 22, 2013
8565609 Distribution system for optical reference Oct. 22, 2013
8559826 Digital image sender, digital image receiver, digital image transmission system and digital image transmission method Oct. 15, 2013
8543005 Intentionally skewed optical clock signal distribution Sep. 24, 2013
8538279 Method and apparatus for carrier phase estimation and correction in a coherent optical system Sep. 17, 2013
8538271 Combined burst mode level and clock recovery Sep. 17, 2013
8526829 System, method and apparatus for clockless PPM optical communications Sep. 3, 2013
8521035 Systems and methods for visible light communication Aug. 27, 2013
8516238 Circuitry for active cable Aug. 20, 2013
8498314 Clock operating method and apparatus for supporting ethernet physical layer interfaces Jul. 30, 2013
8494377 Systems, circuits and methods for conditioning signals for transmission on a physical medium Jul. 23, 2013
8494378 Synchronous optical signal generating device and synchronous optical signal generating method Jul. 23, 2013
8472515 Clock and data recovery circuit with decision feedback equalization Jun. 25, 2013
8467689 Parallel-serial converter for optical transmission, optical transmission system, and electronic apparatus Jun. 18, 2013
8451836 Method, device, and system for transmitting constant rate data stream May. 28, 2013
8452186 Clock recovery with channel coefficients May. 28, 2013
8447185 Optical transmitter, optical receiver, and optically coupled insulating device May. 21, 2013
8442406 Filter, coherent receiver device and coherent receiving method May. 14, 2013
8437641 Clock regeneration for optical communications May. 7, 2013
8428183 In-phase and quadrature pattern alignment for quadrature phase shift keying optical transmitters Apr. 23, 2013
8417115 Quantifying link quality in an optoelectronic module Apr. 9, 2013
8406634 Method and apparatus for optical signaling Mar. 26, 2013
8406631 Network timing Mar. 26, 2013
8380079 Circuit for end-of-burst detection Feb. 19, 2013
8335437 Time synchronization method and device in passive optical network and passive optical network Dec. 18, 2012
8320409 Methods and apparatus for improved communications networks Nov. 27, 2012
8320770 Clock and data recovery for differential quadrature phase shift keying Nov. 27, 2012
8315524 Electro-optic conversion module, optic-electro conversion module and conversion methods thereof Nov. 20, 2012
8280252 Subscriber terminal of adjusting intensity of optical signal by controlling attenuation, and a method thereof Oct. 2, 2012
8280261 Optical signal phase regenerator for formats of differential modulation with phase changes Oct. 2, 2012
8270422 Active/standby switchover method and device of asynchronous backplane in transport network Sep. 18, 2012
8270836 Signal transmitting device, transmitter and receiver Sep. 18, 2012
8243869 Burst mode clock and data recovery circuit and method Aug. 14, 2012
8244126 Automatically selecting a clock recovery mode within optical network terminals Aug. 14, 2012
8233807 Optical pulse amplication apparatus and method Jul. 31, 2012
8208811 Network with sourceless clients Jun. 26, 2012
8208815 Bit accurate upstream burst transmission phase method for reducing burst data arrival variation Jun. 26, 2012
8190032 Optical signal processing apparatus May. 29, 2012

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