Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Patent
1987-12-02
1990-01-30
Shoop, Jr., William M.
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
341156, 341169, H03M 136
Patent
active
048976563
ABSTRACT:
The invention centers around a system for interpolating between multiple pairs of complementary main signals to generate further pairs of complementary signals. An input circuit (10) supplies the main signals. The interpolation is a two-step operation. The first step is done with two strings (S and S.sub.N) of impedance elements (R.sub.0 -R.sub.N-1 and R.sub.N0 -R.sub.NN-1). Each pair of main signals is supplied to a corresponding pair of nodes along the strings. Interpolated signals are taken from other pairs of corresponding nodes along the strings. In the second interpolation stage, a delay network (D) formed with additional impedance elements (R.sub.D0 -R.sub.DN-1 and R.sub.DN0 -R.sub.DNN-1) compensates for transmission delays through the impedance elements that make up the strings.
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patent: 4737766 (1988-04-01), van de Plassche
J. Peterson, "A Monolithic Video A/D Converter", IEEE JSSC, Dec. 1979, pp. 932-937.
R. van de Plassche et al., "A High-Speed 7 Bit A/D Converter," IEEE JSSC, Dec. 1979, pp. 938-943.
R. van de Grift et al., "A Monolithic 8-Bit Video A/D Converter," IEEE JSSC, Jun. 1984, pp. 374-378.
Baltus Peter G.
van de Plassche Rudy J.
Briody T.
Meetin R.
North American Philips Corporation Signetics Division
Romano Gary J.
Shoop Jr. William M.
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