18578408. AMPLIFIER ERROR CORRECTION CIRCUIT simplified abstract (Telefonaktiebolaget LM Ericsson (publ))

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AMPLIFIER ERROR CORRECTION CIRCUIT

Organization Name

Telefonaktiebolaget LM Ericsson (publ)

Inventor(s)

Ling Qin of CHENGDU (CN)

Yonghai Jin of Beijing (CN)

Richard Hellberg of HUDDINGE (SE)

AMPLIFIER ERROR CORRECTION CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 18578408 titled 'AMPLIFIER ERROR CORRECTION CIRCUIT

Simplified Explanation: The patent application describes an amplifier error correction circuit that includes multiple sub-amplifiers to correct errors in the output signal of an amplifier circuit.

  • The circuit has a first input for the output signal of the amplifier circuit and an error signal input for receiving an error signal indicating errors in the output signal.
  • A sub-amplifier input signal preparation circuit distributes portions of the error signal to each sub-amplifier.
  • An output signal combining circuit combines the outputs of the sub-amplifiers with the output signal of the amplifier circuit to provide a corrected signal.

Key Features and Innovation:

  • Utilizes multiple sub-amplifiers to correct errors in the output signal.
  • Distributes error signal portions to each sub-amplifier for effective error correction.
  • Combines outputs of sub-amplifiers with the original signal for a corrected output.

Potential Applications: This technology can be applied in audio amplifiers, communication systems, and signal processing equipment where accurate signal amplification is crucial.

Problems Solved: The technology addresses errors in amplifier output signals, ensuring accurate and reliable amplification of signals.

Benefits:

  • Improved signal accuracy and reliability.
  • Enhanced performance of amplifier circuits.
  • Reduction of signal distortion and noise.

Commercial Applications: The technology can be utilized in audio equipment, telecommunications devices, and medical instruments requiring precise signal amplification for commercial applications.

Questions about Amplifier Error Correction Circuits: 1. How does the error signal input help in correcting errors in the output signal? 2. What are the advantages of using multiple sub-amplifiers in the error correction circuit?


Original Abstract Submitted

Amplifier error correction circuits are disclosed, including in an example an amplifier error correction circuit. The amplifier error correction circuit comprises a plurality of sub-amplifiers, a first input adapted to receive an output signal of an amplifier circuit, and an error signal input adapted to receive an error signal indicative of an error in the output signal of the amplifier circuit. The amplifier error correction circuit also comprises a sub-amplifier input signal preparation circuit adapted to provide a respective portion of the error signal to each of the sub-amplifiers, and an output signal combining circuit adapted to combine outputs of the sub-amplifiers with the output signal of the amplifier circuit and to provide a combined signal to an output of the amplifier correction circuit. At least one of the sub-amplifiers comprises a cascode amplifier.