High availability telephone set
High current inductive coupler and current transformer for...
High frequency network communications over various lines
High frequency network multiplexed communications over...
High impedance signal detection device
High impedance signal detection device
High impedance signal detection device
High impedance transient resistant transistorized hold circuit
High performance adsl line conditioner system and method
High speed automatic test apparatus especially electronic...
High speed communications system for analog subscriber...
High speed decoder and decoding method
High speed dial-up telephone circuit full duplex data...
High speed encoder and encoding method
High speed half duplex modem with fast turnaround protocol
High speed interphase switching arrangement
High speed multiple loop dsl system
High speed multiple user multiple loop dsl system
High speed quantization-level-sampling modem with...
High voltage power transmission system