Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Patent
1994-12-29
1996-11-26
Tse, Young T.
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
375299, 375347, 455101, 455103, H04B 702
Patent
active
055793410
ABSTRACT:
A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).
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Bailey Donald E.
Elder Robert C.
Kobrinetz Tony
Laird Kevin M.
Lurey Daniel M.
Motorola Inc.
Sitko Anthony
Toler Jeffrey G.
Tse Young T.
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