Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04B
TRANSMISSION
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1/00
Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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H04B1/38
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
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H04B1/403
using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
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H04B1/406
with more than one transmission mode, e.g. analog and digital modes
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