Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 307/3
Name: Electrical transmission or interconnection systems > Superimposed unlike currents > Different frequencies or phase
Description: Subject matter in which the superimposed unlike currents have different frequencies or phase.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8710695 System and method for passing PLC signals from a first electrical line to a second electrical line Apr. 29, 2014
8692407 Power line transmission apparatus without public power system noise interference and method thereof Apr. 8, 2014
8686588 Device arrangement comprising an electronic device and a power adapter and method for connecting a power adapter Apr. 1, 2014
8680706 Communicating over power distribution media Mar. 25, 2014
8674539 Powerline communication power supply and modem interface mechanism Mar. 18, 2014
8653952 Power line communication system Feb. 18, 2014
8624424 Systems and methods to emulate high frequency electrical signatures Jan. 7, 2014
8581436 Off-mains switch and a control box for electrically driven articles of furniture Nov. 12, 2013
8520400 Integrated circuit with intra-chip clock interface and methods for use therewith Aug. 27, 2013
8519560 Power line communication device Aug. 27, 2013
8436487 Method and system for control and power supply of at least electrical consumer May. 7, 2013
8421614 Reliable redundant data communication through alternating current power distribution system Apr. 16, 2013
8415821 Electronic device and adapter thereof Apr. 9, 2013
8410630 Powerline communication control of light emitting diode (LED) lighting fixtures Apr. 2, 2013
8368337 HVAC equipment phase and voltage monitor and control Feb. 5, 2013
8338981 Communication between network interface device and subscriber devices via power supply lines Dec. 25, 2012
8330585 Power supply employing pulse-width modulation and digital-to-analog converter, power supply control device, and manufacturing method of the same Dec. 11, 2012
8302418 Indoor unit and air conditioning system with faulty wiring discrimination Nov. 6, 2012
8294555 Communication system for inductive power transfer system Oct. 23, 2012
8279058 System, device and method for communicating over power lines Oct. 2, 2012
8264370 Power and signal distribution system Sep. 11, 2012
8258649 Communicating over power distribution media Sep. 4, 2012
8258940 Power line communications system Sep. 4, 2012
8242622 Method and system for communicating over neutral power lines Aug. 14, 2012
8232668 Synchronization point detection method and power line communication apparatus Jul. 31, 2012
8232667 System and method for data transmission over a power line of a switch mode power supply by frequency modulating the switch frequency thereof Jul. 31, 2012
8212375 Network interface device communication via power line Jul. 3, 2012
8212376 Apparatus and method for providing operative power to powerline-network device Jul. 3, 2012
8212378 Control and supply system Jul. 3, 2012
8212381 Method and system for the voltage supply of aircraft cabin modules Jul. 3, 2012
8205466 Indoor and outdoor units of an air conditioning system connected via two wiring configurations Jun. 26, 2012
8204472 Multi-wideband communications over power lines Jun. 19, 2012
8188855 System, device and method for communicating over power lines May. 29, 2012
8178994 Selective phase coupler May. 15, 2012
8174145 Power supply and communications system for a passenger aircarft May. 8, 2012
8169103 Data-ready power mains distribution panel and data coupler May. 1, 2012
8154147 System and method for controlling a power budget at a power source equipment using a PHY Apr. 10, 2012
8138622 System and method for an AC powered downhole gauge with capacitive coupling Mar. 20, 2012
8138623 Integrated circuit with supply line intra-chip clock interface and methods for use therewith Mar. 20, 2012
8130084 Fault tolerant closed system control using power line communication Mar. 6, 2012
8102665 Integrated circuit with intra-chip clock interface and methods for use therewith Jan. 24, 2012
8097973 Power mains transformer data bridge Jan. 17, 2012
8093765 System for noise reduction in circuits Jan. 10, 2012
8093745 Sensing current flowing through a power line Jan. 10, 2012
8093744 Power mains distribution panel data link Jan. 10, 2012
8089176 Communication system and communication apparatus Jan. 3, 2012
8076792 Power line communication apparatus Dec. 13, 2011
8070108 Signaling and remote control train operation Dec. 6, 2011
8026628 Systems and methods for electricity metering Sep. 27, 2011
8026627 Powered device for power over Ethernet system with increased cable length Sep. 27, 2011

1 2 3 4 5

  Recently Added Patents
Pulsed plasma with low wafer temperature for ultra thin layer etches
Driver circuit for driving semiconductor switches
Pet urn enclosure
Method of purifying crude acetone stream
Mirror drift compensation in an optical circuit switch
System and method for seamlessly increasing download throughput
Fire detector
  Randomly Featured Patents
Methods and apparatus for implementing checkin policies in source code control systems
Flooring installation tool
Intravenous infusion assist tray
Solid oxide fuel cell stack having an integral gas distribution manifold
System and method for efficient string concatenation in a virtual machine environment
Game presentation in a retail establishment
Shower head apparatus
Housing for air service units
Method and device for counting and characterizing defects on a photographic support
Hierarchical coding for multicast messages