Transmitter and receiver circuits for transmission of voice, dat

Details Transmitter and receiver circuits for transmission of voice, dat Transmitter and receiver circuits for transmission of voice, dat

1995-10-30

2000-10-24

Chin, Tommy P.

Television

Special applications

Manufacturing

348 17, 455 31, H04N 710, H04N 714

Patent

active

061375241

ABSTRACT:
A communication system allows the transmission of voice, data, and non-compressed video signals over shielded or unshielded copper wire for extended distances. The system includes a transmitter, a wire link, and a receiver. The transmitter in the preferred embodiment amplifies substantially the entire frequency spectrum of the signal, converts the signal from common mode to differential mode, and adds a current to drive the signal over the wire link for extended distances. The receiver in the preferred embodiment provides an offset impedance and an offset capacitance to the signal to compensate for the impedance and capacitance of the wire link, amplifies the signal, converts the signal from differential mode to common mode, suppresses the noise in the signal, removes the current from the signal, and amplifies and refines the signal using sin x/x correction.

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