18341507. AMPLIFICATION CIRCUIT, HUMAN BODY CHANNEL-BASED COMMUNICATION SYSTEM INCLUDING THE SAME, AND OPERATION METHOD THEREOF simplified abstract (ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE)

AMPLIFICATION CIRCUIT, HUMAN BODY CHANNEL-BASED COMMUNICATION SYSTEM INCLUDING THE SAME, AND OPERATION METHOD THEREOF

Organization Name

ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor(s)

Sung Eun Kim of Daejeon (KR)

Tae Wook Kang of Daejeon (KR)

Hyuk Kim of Daejeon (KR)

Kyung Hwan Park of Daejeon (KR)

Mi Jeong Park of Daejeon (KR)

Hyung-IL Park of Daejeon (KR)

Kyung Jin Byun of Daejeon (KR)

Kwang IL Oh of Daejeon (KR)

Jae-Jin Lee of Daejeon (KR)

In Gi Lim of Daejeon (KR)

AMPLIFICATION CIRCUIT, HUMAN BODY CHANNEL-BASED COMMUNICATION SYSTEM INCLUDING THE SAME, AND OPERATION METHOD THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 18341507 titled 'AMPLIFICATION CIRCUIT, HUMAN BODY CHANNEL-BASED COMMUNICATION SYSTEM INCLUDING THE SAME, AND OPERATION METHOD THEREOF

Simplified Explanation

The patent application describes an amplification circuit with two amplifiers that perform band pass filtering on an external signal to output a filtered signal with a narrower frequency pass bandwidth in the second amplifier compared to the first amplifier.

• The first amplifier receives an external signal and performs first band pass filtering to output a first filter signal.
• The second amplifier receives the first filter signal and performs second band pass filtering to output a second filter signal with a narrower frequency pass bandwidth.

Potential Applications

The technology could be used in audio amplification systems, communication devices, and signal processing equipment.

Problems Solved

1. Improved signal filtering to remove unwanted noise and interference. 2. Enhanced signal amplification with precise frequency pass bandwidth control.

Benefits

1. Higher quality signal amplification. 2. Reduced interference and noise in the output signal.

Potential Commercial Applications

"Advanced Signal Amplification Circuit for Audio Systems and Communication Devices"

Possible Prior Art

There may be prior art related to signal amplification circuits with multiple stages of filtering, but specific examples are not provided in the patent application.

Unanswered Questions

How does the amplification circuit handle variations in input signal strength?

The patent application does not specify how the circuit adjusts for different input signal levels to maintain consistent output quality.

Are there any limitations to the frequency pass bandwidth control of the second amplifier?

It is not clear from the abstract whether there are any constraints or limitations to the frequency pass bandwidth adjustment in the second amplifier.

Original Abstract Submitted

Disclosed is an amplification circuit, which includes a first amplifier that receives an external signal and performs first band pass filtering on the external signal to output a first filter signal, and a second amplifier that receives the first filter signal and performs second band pass filtering on the first filter signal to output a second filter signal, and a frequency pass bandwidth of the second band pass filtering is narrower than a frequency pass bandwidth of the first band pass filtering.