Analog-to-digital converting apparatus for processing a plurality of analog input signals at high rate and display device using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-seung Shim, Il-hyeon Ryu
Life of this patent
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Abstract
An analog-to-digital converting apparatus for rapidly processing a plurality of analog input signals at a high rate and a display device using the same. The apparatus includes a clock signal generator that generates a clock signal with a predetermined frequency; a control signal generator that generates a switching control signal using the clock signal; a multiplexer (MUX) that receives and selectively outputs signals of the plurality of analog input signals according to the switching control signal; and an analog-to-digital converter (ADC) that converts an analog signal selected and output by the MUX to a digital signal.
Claims9
An analog-to-digital converting apparatus for processing a plurality of analog input signals, the apparatus comprising:
- a clock signal generator that generates a clock signal with a predetermined frequency;
- a control signal generator that generates a switching control signal and buffer control signals using the clock signal using the clock signal;
- a multiplexer (MUX) that receives and selectively outputs the plurality of analog input signals according to the switching control signal;
- an analog-to-digital converter (ADC) that converts the analog input signal selected and output by the MUX to digital signals;
- a buffer memory that sequentially stores the digital signals according to the buffer control signal and corresponding to the analog signals input to the MUX, and sequentially outputs digital signals when the buffer memory is filled with data of the digital signals corresponding to all of the analog input signals;
- and
- a digital filter that multiplies each of the digital signals output by the buffer memory corresponding to a number of digital filter taps by predetermined tap coefficients to remove noise.
An analog-to-digital converting apparatus for processing a plurality of analog input signals, the apparatus comprising:
- a clock signal generator that generates a clock signal with a predetermined frequency;
- a control signal generator that generates switching control signals and buffer control signals using the clock signal;
- a multiplexer (MUX) that receives and outputs selected the plurality of analog input signals according to the switching control signals;
- an analog-to-digital converter (ADC) that converts the analog input signal selected and output by the MUX to digital signals;
- a buffer memory that sequentially stores the digital signals according to the buffer control signals and corresponding to the analog signals input to the MUX, the length of the digital signals corresponding to a number of digital filter taps, and sequentially outputs digital signals corresponding to the number of digital filter taps;
- a digital filter that multiplies each of the digital signals output by the buffer memory corresponding to the number of digital filter taps by predetermined tap coefficients to remove noise;
- and
- a register block that sequentially stores filtered digital signals output by the digital filter.
Dependencies are inferred from the claim text.