Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-03-26
1986-10-21
Masinick, Michael A.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 40, H04N 968
Patent
active
046188819
ABSTRACT:
In this IC set, the dark currents and the white levels of the three electron guns, the leakage currents of the cathodes, and a light-detector current are measured during four successive vertical blanking intervals. The cathode leakage currents and the dark currents are measured in the first half of the vertical blanking interval, and the light-detector current and the white-level currents are measured at the end of this interval. From these measured data and alignment data stored in a reprogrammable memory (ps), a microprocessor (mp) contained together with the memory (ps) in an integrated circuit (ic2) derives operating data for the picture tube (b) as well as further data. These operating data are transferred over a wire of a chroma bus (cb), over which chroma signals are transferred during the vertical sweep, into a shift register (sr) of a further integrated circuit (ic3) at the beginning of each vertical blanking interval, from where they are passed on to the picture tube (b) in groups via digital-to-analog converters and analog amplifiers. By the use of the chroma bus for a dual purpose, and the successive measurements of the above-mentioned picture-tube data, a saving of external terminals of the integrated circuits (ic1, ic2, ic3) is achieved.
REFERENCES:
patent: 4547797 (1985-10-01), Mick
"Eine Neue Dimension-VLSI-Digital TV System", Intermetall, Sep. 1981, pp. 1-23.
"A New Dimension-VLSI Digital TV System", Intermetall, Sep. 1981, pp. 1-23.
"VLSI-Technik Im Fernsehgerat-Eine Basisinnovation", Elektronik, 16/1981, p. 3, Aug. 14, 1981.
"Fernsehen Wird Digital", Fischer, Elektronik, Aug. 1981, pp. 27-35.
"Digital VLSI Breeds Next-Generation TV Receivers"; Fischer, Electronics, Aug. 11, 1981, pp. 97-103.
Freyberger Laurin C.
Mlynek Daniel
Schmidtpott Friedrich
IT&T Industries, Inc.
Lenkszus Donald J.
Masinick Michael A.
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