Asynchronous demodulator with balanced detector, particularly for ASK optical heterodyne systems
IT8812534D0
Equipment for rapid recognition of packets of data in digital telecommunications systems without prior linking of the clock to the word of alignment
GB1581760A
Logic circuit for use in single and multichannel digital telephone apparatus
DE2725987A1
Logic circuit for analog channel of digital telephone appts. - has three shift register cell and logic gate circuits in which NOR=gate produces digital output
GB807340A
Improvements in and relating to automatic radio tuning devices
