Method for displaying printing situation of a color video printer
AssigneeSamsung Electronics Co., Ltd.
InventorHee-Guk Kwak
Life of this patent
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Abstract
A method for easily notifying a user of the printing status of a color video printer by displaying the printing status of the color video printer. In order to display the color being printed, a pedestal level signal and a white level signal are multiplexed in response to a pulse width converted control signal. The multiplexed signal and a chrominance signal are applied to multiplex the chrominance signal in response to a selection control signal, and a multiplexed chrominance signal is displayed on a screen of a monitor by stimulating the screen monitor with an additive mixture of color so as to display the printing status.
Claims22
A method for displaying a printing status of a color video printer, comprising the steps of:
- multiplexing a pedestal level signal and a white level signal in response to a pulse width converted control signal to produce a first multiplexed signal;
- receiving said first multiplexed signal and a chrominance signal, and multiplexing said chrominance signal in response to a selection control signal to produce a multiplexed chrominance signal;
- and
- displaying said multiplexed chrominance signal on a variable visual display by stimulating said variable visual display with colors representative of a color as printed by the video printer.
A method of displaying a printing status of a color video printer controlled by chrominance signals of a composite video signal, comprising the steps of:
- multiplexing a pedestal level signal with a white level signal to generate first multiplexed signals;
- multiplexing said first multiplexed signals with said chrominance signals to generate second multiplexed signals;
- encoding said second multiplexed signals to generate an encoded composite video signal;
- and
- displaying said printing status on a visual display providing images varying in dependence upon said encoded composite video signal.
A method of displaying a printing status of a color video printer controlled by chrominance signals of a composite video signal, comprising the steps of:
- sequentially selecting said chrominance signals to generate a selected chrominance signal;
- encoding said selected chrominance signal to generate an encoded chrominance signal;
- and
- selectively enabling transmission of one of said encoded chrominance signal and a pedestal level signal;
- and
- displaying said printing status on a visual display presenting variable images varying in dependence upon one of said encoded chrominance signal and said pedestal level signal.
An apparatus for showing a printing status of a color video printer, comprising:
- decoding means for separating chrominance signals from a composite video signal;
- pedestal level unit means for generating a pedestal level signal and a white level signal;
- multivibrator means for pulse width modulating a clock pulse to generate a selection control signal;
- switch means for switching signals comprising:
- first multiplexing means for multiplexing said white level signal and said pedestal level signal in response to said selection control signal to generate first multiplexed signals;
- and
- second multiplexing means for multiplexing said first multiplexed signals and said chrominance signals in response to control input signals from an external source to generate second multiplexed signals;
- encoding means for converting said second multiplexed signals into said composite video signal;
- and
- a visual display for displaying images varying as a function of said printing status in dependence upon said composite video signal.
An apparatus for showing a printing status of a color video printer, comprising:
- decoding means for separating chrominance signals from a composite video signal;
- pedestal level unit means for generating a pedestal level signal;
- multivibrator means for pulse width modulating a clock pulse from a clock pulse generator, said multivibrator means generating a selection control signal;
- first switch means for providing selected chrominance signals by sequentially selecting said chrominance signals separated from said composite video signal in response to a control signal from a microcomputer;
- encoding means for converting said selected chrominance signals into said composite video signal;
- second switch means for enabling transmission of one of said composite video signal and said pedestal level signal in response to said selection control signal;
- and
- a visual display for displaying said printing status in dependence upon one of said composite video signal and said pedestal level signal.
An apparatus for showing a printing status of a color video printer, comprising:
- decoding means having a plurality of outputs for separating chrominance signals from a composite video signal;
- first switching means for selectively switching the chrominance signals;
- analog-to-digital converting means for digitally converting a signal selected by said first switching means in response to a clock pulse;
- multivibrator means for pulse width modulating the clock pulse to generate a selection control signal;
- pedestal level unit means for generating a pedestal level signal and a white level signal;
- microcomputing means for generating control input signals;
- second switching means for providing an output by selectively switching between said plurality of outputs of said decoding means and said pedestal level unit means in response to the selection control signal and the control input signals;
- encoder means for converting said output of said second switching means into the composite video signal;
- and
- a visual display for displaying images indicative of said printing status varying in dependence upon the composite video signal.
Dependencies are inferred from the claim text.