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US4660192A
(en)
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Simultaneous AM and FM transmitter and receiver
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(en)
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Combined television and sound system
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(en)
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Pulse time modulated multiplex system
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GB623415A
(en)
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Improvements in or relating to multichannel electric pulse communication systems
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(en)
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Method of and means for spread-spectrum transmission
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DE1284487B
(de)
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Mehrkanal-Funkuebertragungssystem
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EP0356903A2
(en)
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Television transmission system having improved separation of audio and video spectra
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(en)
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Doppler frequency spread correction device for multiplex transmissions
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(en)
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Plural modulation system
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(en)
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Electrical pulse secrecy communication system
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SE182045C1
(enExample)
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(en)
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Television and pulse modulated sound system
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(en)
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Cipher system for pulse code modulation communication system
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GB2076238A
(en)
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Radio receiver
|
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(en)
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Selective transmission system
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(en)
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Sheetsxsheet i |
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(en)
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Arrangement for the transmission of intelligence
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(en)
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Cross talk eliminating apparatus in a time division multiplex system
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DE1161328B
(de)
|
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System zur drahtlosen UEbertragung stereophonischer Signale
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(en)
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Pulse communication system
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EP0271540B1
(en)
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Mac format with alternating dc level and clock recovery signals
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(en)
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Signalling system for telecommunication systems using pulse modulation
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(en)
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Ringing equipment for pulse modulation systems
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(en)
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Frequency shift telegraph communication
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(en)
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Modulation and demodulation apparatus using reference time functions
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