18340070. DELTA-SIGMA MODULATOR simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
DELTA-SIGMA MODULATOR
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Shotaro Wada of Nisshin-shi (JP)
Tomohiro Nezuka of Nisshin-shi (JP)
Yoshikazu Furuta of Nisshin-shi (JP)
DELTA-SIGMA MODULATOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18340070 titled 'DELTA-SIGMA MODULATOR
Simplified Explanation
The abstract describes a delta-sigma modulator that utilizes a capacitively-coupled amplifier, integrators, switches, and a control circuit to perform modulation and demodulation operations. The output signal of the amplifier is imported into the first integrator after demodulation.
- The delta-sigma modulator includes a capacitively-coupled amplifier.
- A first switch is used to perform chopping operation at the input of the amplifier.
- A second switch is used to perform chopping operation at the output of the amplifier.
- The control circuit executes modulation and demodulation operations using the switches.
- The output signal of the amplifier is then imported into the first integrator.
Potential Applications
- Analog-to-digital converters (ADCs)
- Audio processing systems
- Communication systems
Problems Solved
- Improved signal quality by reducing noise and distortion.
- Efficient modulation and demodulation operations.
- Enhanced performance of delta-sigma modulators.
Benefits
- Higher accuracy and resolution in signal processing.
- Reduced noise and distortion in the output signal.
- Improved overall performance of the modulator.
Original Abstract Submitted
A delta-sigma modulator includes a capacitively-coupled amplifier, a first integrator, a second integrator, a quantizer, a first switch, a second switch, and a control circuit. The first switch is connected between an input of the capacitively-coupled amplifier and a sampling capacitor of the capacitively-coupled amplifier to execute a chopping operation. The second switch is connected between an output of the capacitively-coupled amplifier and an input of the first integrator to execute a chopping operation. The control circuit executes modulation through the first switch at the input of the capacitively-coupled amplifier, executes demodulation through the second switch at the output of the capacitively-coupled amplifier, and imports an output signal of the capacitively-coupled amplifier into the first integrator after the demodulation.