Synchronous serial communication circuit

Details Synchronous serial communication circuit Synchronous serial communication circuit

1990-12-17

1993-02-16

Kuntz, Curtis

Pulse or digital communications

Repeaters

Testing

375 55, 361245, 178 63F, H04L 2700

Patent

active

051877201

ABSTRACT:
The synchronous serial communication circuit transmits and receives data, which is added flag patterns for recognizing the coil winding direction at the first and last of data block, by the electromagnetic induction system using a pair of coils. So, the circuit provides modulation and demodulation circuits acting at the clock of twice of the transfer speed and a flag check circuit for recognizing the inversion of the coil winding direction by judging a state of the flag patterns included in the received data. The transmitted data is converted into the biphase signal by the modulation circuit and is transmitted by driving the coil using the biphase signal. The signal received by the coil is converted into the received data by the demodulation circuit. When the winding directions of coils does not agree, the flag check circuit recognizes the inversion of the coil winding direction and the received data is inverted by the demodulation circuit.

REFERENCES:
patent: 2921255 (1960-01-01), Norton

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