Serial to parallel converter for data transmission

Details Serial to parallel converter for data transmission Serial to parallel converter for data transmission

1974-05-31

1976-03-23

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

G06F 504

Patent

active

039463796

ABSTRACT:
A circuit for converting into parallel output data a serial input data stream including characters of N data bits preceded by a start bit at one logic level and followed by at least one stop bit at another logic level. A shift register of N+2 stages in one embodiment has all of its stages preset to a logic level corresponding to the at least one stop bit. The circuit detects the presence of a start bit on the input line and serially clocks into the shift register the start bit, the N data bits and the at least one stop bit. The circuit responds to the detection of the start bit in a particular stage of the register to provide a strobing signal to indicate the availability of a complete character in the register for parallel shifting out. After the character is shifted out in parallel each stage of the shift register is reset to the initial condition.

REFERENCES:
patent: 3261913 (1966-07-01), Reichert
patent: 3267460 (1966-08-01), Merrell et al.
patent: 3310626 (1967-03-01), Cassidy
patent: 3355732 (1967-11-01), Lucas
patent: 3569955 (1971-03-01), Maniere
C. Williams, "Deserializer", IBM Technical Discl. Bulletin, Vol. 14, No. 2, July 1971, p. 653.
V. D. Dvornikov et al., "Parallel-to-Serial and Serial-to-Parallel Code Conv.", Instrum. & Exp. Tech. (U.S.A.), No. 1, (Jan.-Feb. 1970), pp. 101-103.

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