Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Patent
1991-12-19
1993-09-07
Pellinen, A. D.
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
341101, H03M 166
Patent
active
052433463
ABSTRACT:
In a digital-to-analog converting device for converting an input digital signal into an output analog signal, a converting circuit converts the input digital signal into a first and a second digital signal which are alternatingly produced in parallel in response to clock pulses. A first and a second decoder are for decoding the first and the second digital signals into a first and a second decoded parallel digital signal. A first and a second parallel-serial converter are for converting the first and the second decoded parallel digital signals into a first and a second serial digital signal in response to an oversampling clock pulses. A first and a second digital-to-analog converter are for converting the first and the second serial digital signals into a first and a second analog signal. An analog adder adds the first and the second analog signals into a sum analog signal. An analog integrator is for integrating the sum analog signal into the output analog signal.
REFERENCES:
patent: 4591832 (1986-05-01), Fling et al.
patent: 4929947 (1990-05-01), Toyama
NEC Corporation
Pellinen A. D.
Young Brian K.
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