223414 ⎘
Details of transmission systems, not covered by a single one of groups - ; Details of transmission systems not characterised by the medium used for transmission; Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving; Circuits using the same frequency for two directions of communication; Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or using a transformer with automatic balancing
Transformer, transmitter circuit, semiconductor chip, semiconductor package, base station, mobile device, and method for a radio frequency transmitter
#2Active interference cancellation apparatus, signal isolation control apparatus and method of actively cancelling interference
#3Reconfigurable electrical balance duplexer (EBD) supporting frequency division duplex (FDD) and time division duplex (TDD)
#4Reconfigurable electrical balance duplexer (EBD) supporting frequency division duplex (FDD) and time division duplex (TDD)
#5Methods and apparatus for duplexing signals
#6Signal isolation control apparatus and method of controlling a hybrid junction
#7Auto-balancing transformers
#8Duplexer-less transceiver and communication apparatus
#9Tunable balun
#10Non-reciprocal transmission apparatus with different backward and forward propagation constants, provided for circularly polarized wave antenna apparatus
#11Front end module with compensating duplexer