Computer networking apparatus

Details Computer networking apparatus Computer networking apparatus

1989-03-02

1991-10-15

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

340310R, 340310A, G05B 2302

Patent

active

050578294

ABSTRACT:
An adjustment free computer networking apparatus is shown which isolates the transmitter portion thereof from the power line when it is not transmitting, has a carrier isolator provided within its power supply to prevent it from shorting out its own signal, and which has a crystal oscillator to maintain the frequency of the signals being used to transmit data.

REFERENCES:
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patent: 4024501 (1977-05-01), Herring et al.
patent: 4173754 (1979-11-01), Feiker
patent: 4368439 (1983-01-01), Shibuya et al.
patent: 4425664 (1984-01-01), Sherman et al.
patent: 4535401 (1985-08-01), Penn
patent: 4556864 (1985-12-01), Roy
patent: 4665519 (1987-05-01), Kirchner et al.
patent: 4697166 (1987-09-01), Warnagiris et al.
patent: 4794620 (1988-12-01), Moore et al.
patent: 4852122 (1989-07-01), Nelson et al.

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