Charge-coupled-device based data-in-voice modem

Details Charge-coupled-device based data-in-voice modem Charge-coupled-device based data-in-voice modem

1994-05-13

1996-11-19

Tse, Young T.

Pulse or digital communications

Transceivers

Modems

455143, 348388, 332103, H04B 138

Patent

active

055770665

ABSTRACT:
A data-in-voice modem is disclosed using charge coupled devices. Unique features include: (1) Baseband-to-IF upconversion to enable CCD-based demod/processing; (2) All analog (no analog-to-digital A/D required); option for post-CCD A/D; (3) Additional on-chip functions; (4) Stand-alone, CCD-based high-rate modem over telephone lines; and (5) CCD-based cable-tv/multimedia processing, via baseband-to-IF upconversion, followed by IF-sampled CCD processing.

REFERENCES:
patent: 4145655 (1979-03-01), Caudel et al.
patent: 4336613 (1982-06-01), Hewes
patent: 4542475 (1985-09-01), Acampora
patent: 4630099 (1986-12-01), Rzeszewski
patent: 5151779 (1992-09-01), Kanatsugu et al.
patent: 5483549 (1996-01-01), Weinberg et al.

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