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Class Information
Number: 375/258
Name: Pulse or digital communications > Cable systems and components > Transformer coupling
Description: Subject matter including an inductive coupling which is used between the driver and the transmission line or between the receiver and the transmission line for isolating the d.c. value.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617517 |
Cable modem including filtering based on frequency band |
Nov. 10, 2009 |
| 7602872 |
Scheduling apparatus and method in a multicarrier communication system |
Oct. 13, 2009 |
| 7577104 |
Current imbalance compensation for magnetics in a wired data telecommunications network |
Aug. 18, 2009 |
| 7577205 |
Return-loss compliant DSL modem line interface unit with complex termination |
Aug. 18, 2009 |
| 7564341 |
Method for transmitting data and power to networked devices |
Jul. 21, 2009 |
| 7542512 |
Communication apparatus and communication method |
Jun. 2, 2009 |
| 7535964 |
Self-clocked two-level differential signaling methods and apparatus |
May. 19, 2009 |
| 7526256 |
Transformer-based multi-band RF front-end architecture |
Apr. 28, 2009 |
| 7526034 |
Method and apparatus for communicating between devices having no common electrical ground |
Apr. 28, 2009 |
| 7492827 |
Method for data transmission via a data transmission path with inductive transformers, and a data transmission apparatus |
Feb. 17, 2009 |
| 7483688 |
Network device with hybrid-mode transmitter |
Jan. 27, 2009 |
| 7460604 |
RF isolator for isolating voltage sensing and gate drivers |
Dec. 2, 2008 |
| 7457252 |
Current imbalance compensation for magnetics in a wired data telecommunications network |
Nov. 25, 2008 |
| 7453943 |
Hybrid circuit for broadband modems |
Nov. 18, 2008 |
| 7450715 |
Transceiver for bidirectional frequency division multiplexed transmission |
Nov. 11, 2008 |
| 7433412 |
Digital subscriber line induction neutralizing transformer network |
Oct. 7, 2008 |
| 7424060 |
Transformer data coupler with high common mode immunity |
Sep. 9, 2008 |
| 7424228 |
High dynamic range radio frequency to optical link |
Sep. 9, 2008 |
| 7421028 |
Transformer isolator for digital power supply |
Sep. 2, 2008 |
| 7414518 |
Power line communication device and method |
Aug. 19, 2008 |
| 7408996 |
Method and apparatus for synchronization of data in a transformer circuit |
Aug. 5, 2008 |
| 7394857 |
Flexible versatile low-cost wireline transmit driver |
Jul. 1, 2008 |
| 7372280 |
Method and system for transmitting an information signal over a power cable |
May. 13, 2008 |
| 7369045 |
Monitoring system and device for an electric power line network |
May. 6, 2008 |
| RE40149 |
Method and apparatus for RF common-mode noise rejection in a DSL receiver |
Mar. 11, 2008 |
| 7330703 |
Transceiver for bidirectional frequency division multiplexed transmission |
Feb. 12, 2008 |
| RE39982 |
Diversity circuit for magnetic communication system |
Jan. 1, 2008 |
| 7315592 |
Common mode noise cancellation |
Jan. 1, 2008 |
| 7312694 |
Capacitive couplers and methods for communicating data over an electrical power delivery system |
Dec. 25, 2007 |
| 7277491 |
Data access arrangement using a high frequency transformer for electrical isolation |
Oct. 2, 2007 |
| 7266154 |
Digital subscriber line induction neutralizing transformer network |
Sep. 4, 2007 |
| 7260152 |
Method and device for injecting a noise signal into a paired wire communication link |
Aug. 21, 2007 |
| 7193506 |
Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length |
Mar. 20, 2007 |
| 7194037 |
Active replica transformer hybrid |
Mar. 20, 2007 |
| 7183901 |
Local network using an electrical power distribution system and associated reflection device |
Feb. 27, 2007 |
| 7180950 |
Low-noise feedback cancellation filter for enhanced common-mode rejection and noise immunity |
Feb. 20, 2007 |
| 7158573 |
Method and apparatus for full duplex signaling across a transformer |
Jan. 2, 2007 |
| 7088232 |
System and method for reducing radiation when distributing broadband communication signals over power lines |
Aug. 8, 2006 |
| 7080186 |
Electromagnetically-coupled bus system |
Jul. 18, 2006 |
| 7075996 |
Symbol-based signaling device for an electromagnetically-coupled bus system |
Jul. 11, 2006 |
| 7072385 |
Load coil and DSL repeater including same |
Jul. 4, 2006 |
| 7065143 |
Method and design for increasing signal to noise ratio in xDSL modems |
Jun. 20, 2006 |
| 7061370 |
High current inductive coupler and current transformer for power lines |
Jun. 13, 2006 |
| 7054376 |
High data rate ethernet transport facility over digital subscriber lines |
May. 30, 2006 |
| 7053756 |
Facilitating communication of data signals on electric power systems |
May. 30, 2006 |
| 7046124 |
Power line coupling device and method of using the same |
May. 16, 2006 |
| 7042952 |
Methods and apparatuses for receiving and transmitting signals |
May. 9, 2006 |
| 7034662 |
Multi-function integrated automation cable system and method |
Apr. 25, 2006 |
| 7005969 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
Feb. 28, 2006 |
| 6998962 |
Power line communication apparatus and method of using the same |
Feb. 14, 2006 |
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