Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1971-11-05
1976-03-23
Larkins, William D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307304, 357 24, 357 41, 333 70T, H03K 5159, G11C 1928, H01L 2710, H01L 2978
Patent
active
039462471
ABSTRACT:
Semiconductor charge devices are defined to effect a serial-to-parallel conversion of analogue signal information. In one aspect of the invention, a digital signal is extracted from an analogue noise environment by a shift register correlator comprising a bucket-brigade configuration of field-effect transistors in combination with gating field-effect transistors which are effective to weight the amplitude of the data in corresponding bits of the shift register. The gates of the gating transistors are selectively connected to diffused regions of transistors of the bucket-brigade delay line to effect parallel tapped outputs therefrom. The weighted signals from the gating transistors are summed at a common terminal to form the auto-correlated output. In a different aspect of the invention, the analogue delay line is effected by a charge-coupled shift register, parallel taps being obtained from diffused regions under selected electrodes of the shift register ohmically connected to gates of the gating field-effect transistors.
REFERENCES:
patent: 3111645 (1963-11-01), Milford
patent: 3543009 (1970-11-01), Voelcker
patent: 3623132 (1971-11-01), Green
patent: 3643106 (1972-02-01), Berwin et al.
patent: 3646587 (1972-02-01), Shaffstall et al.
Electronics, "The New Concept for Memory and Imaging: Charge Coupling" June 21, 1971, pp. 50-55.
Philips Technical Review, The Bucket Brigade Delay Line, a Shift Register for Analogue Signals, by Sangster, 1970, pp. 106-110.
Clairborne Lewis T.
Collins Dean Robert
Comfort James T.
Donaldson Richard L.
Larkins William D.
Levine Hal
Texas Instruments Inc.
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