RFIC with on-chip acoustic transducer circuit

Details RFIC with on-chip acoustic transducer circuit RFIC with on-chip acoustic transducer circuit

2011-04-12

2011-04-12

Pham, Tuan A (Department: 2618)

Telecommunications

Transmitter and receiver at same station

C455S039000, C455S550100, C455S090300, C455S207000

Reexamination Certificate

active

07925221

ABSTRACT:
An RFIC includes a transmit acoustic transducer, a digital conversion module, a transmit baseband module, an analog conversion module, an up-conversion module, a power amplifier circuit, a low noise amplifier circuit, a down-conversion module, a receive baseband processing module, and a receive acoustic transducer circuit. The transmit acoustic transducer circuit converts transmit sound waves into transmit electrical signals. The digital conversion module converts the transmit electrical signals into digital transmit audio signals and converts down-converted signals into digital receive baseband or low IF signals. The transmit baseband processing module converts the digital transmit audio signals into digital transmit baseband or low IF signals. The analog conversion module converts the digital transmit baseband or low IF signals into analog transmit baseband or low IF signals and converts digital receive audio signals into receive electrical signals. The up-conversion module converts the analog transmit baseband or low IF signals into up-converted signals. The power amplifier circuit amplifies the up-converted signals. The low noise amplifier circuit amplifies receive RF signals. The down-conversion module converts the amplified receive RF signals into the down-converted signals. The receive baseband processing module converts the digital receive baseband or low IF signals into the digital receive audio signals. The receive acoustic transducer circuit converts the receive electrical signals into receive sound waves.

REFERENCES:
patent: 6061385 (2000-05-01), Ostman
patent: 6067363 (2000-05-01), Dent
patent: 6882861 (2005-04-01), Panasik et al.

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