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US 10,141,918 B2Granted
Apparatus and method for signal processing by converting amplified difference signal
AssigneeSamsung Electronics Co., Ltd.
InventorJongPal Kim
Life of this patent
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Abstract
A signal processing apparatus includes: a difference signal acquirer configured to obtain a difference signal reflecting a change in an input signal at a preset time interval based on a reference signal; a signal amplifier configured to amplify the difference signal; and a signal restorer configured to generate an output signal by converting the amplified difference signal to a digital signal and the digital signal.
Claims23
A signal processing apparatus, comprising:
- a difference signal acquirer configured to obtain a difference signal reflecting changes in an input signal at preset time intervals based on a reference signal;
- a signal amplifier configured to amplify the difference signal;
- and
- a signal restorer configured to generate an output signal reflecting the input signal by converting the amplified difference signal to a digital signal and incrementally summing the digital signal over the time intervals, wherein, for the incrementally summing over the time intervals, the signal restorer is configured to sum a digital signal of a current time to a summed digital signal of a previous time.
1 more element
A signal processing apparatus, comprising:
- a difference signal acquirer configured to obtain a difference signal reflecting changes in an input signal at preset time intervals based on a reference signal;
- a signal amplifier configured to amplify the difference signal;
- and
- a signal restorer configured to generate an output signal reflecting the input signal by converting the amplified difference signal to a digital signal and summing the digital signal over the time intervals, wherein the signal restorer comprises:
- a sampler and holder configured to sample the amplified difference signal to generate a sampled signal, and hold the sampled signal;
- a signal converter configured to convert the sampled signal to the digital signal;
- and
- a signal adder configured to generate the output signal by summing the digital signal over the time intervals.
5 more elements
A signal processing method, comprising:
- obtaining, based on a switching operation applied to an input signal, a difference signal reflecting changes in the input signal at preset time intervals based on a reference signal;
- amplifying the difference signal;
- converting the amplified difference signal to a digital signal;
- and
- generating an output signal reflecting the input signal by incrementally summing the digital signal over the time intervals to restore an information about the input signal, wherein the incrementally summing over the time intervals further comprises summing a digital signal of a current time to a summed digital signal of a previous time.
2 more elements
Dependencies are inferred from the claim text.