Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Patent
1992-07-14
1993-05-25
Logan, Sharon D.
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
341158, H03M 300, H03M 134
Patent
active
052144313
ABSTRACT:
A data latch circuit of a delta sigma modulator is controlled in timing of data output by clock signal. For this purpose, the data latch circuit has a reverse phase clock input terminal connected to a first delay circuit and a forward phase clock input terminal connected to a second delay circuit. The latch circuit is composed of two P-MOS transistors and two N-MOS transistors. The delay times of the first and second delay circuits are coincided, and those of the respective two P- and N-MOS transistors are also coincided.
REFERENCES:
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patent: 4374331 (1983-02-01), Yamamoto et al.
patent: 4691122 (1987-09-01), Schnizlein et al.
patent: 4768018 (1988-08-01), Noujaim
patent: 4777472 (1988-10-01), Sauer et al.
patent: 4926178 (1990-05-01), Mallinson
patent: 4970407 (1990-11-01), Patchen
patent: 4999625 (1991-03-01), Thompson
patent: 5021786 (1991-06-01), Gerdes
Logan Sharon D.
NEC Corporation
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