Coded data generation or conversion – Digital code to digital code converters – Parallel to serial
Patent
1990-06-26
1991-04-30
Scott, J. R.
Coded data generation or conversion
Digital code to digital code converters
Parallel to serial
341 58, H03M 900
Patent
active
050122401
ABSTRACT:
A signal conversion circuit is used to convert a parallel signal to a serial signal and comprises a parallel input/serial output type of shift register having input terminals corresponding in number to at least n+k bits (n and k: integer), an inverting circuit and a timing circuit. The n-bit input parallel signal is applied to n successive input terminals of the shift register and k bit of the n-bit parallel signal is inverted by the inverting circuit to be applied to the remaining k input terminal of the shift register. The (n+k)-bit parallel signal loaded into the shift register is serially output at a predetermined rate by the timing circuit to provide a serial signal.
REFERENCES:
patent: 3631471 (1971-12-01), Griffiths
patent: 4488295 (1984-12-01), Sharper
patent: 4544916 (1985-10-01), Sharper
patent: 4617552 (1986-10-01), Kojima et al.
Fujioka Fumio
Ichiki Sayohiko
Kondo Toshinori
Kunishige Seiji
Shibagaki Taro
Kabushiki Kaisha Toshiba
Nippon Hoso Kyokai
Scott J. R.
Williams Howard
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