18484265. SPLIT INPUT AMPLIFIER FOR PROTECTION FROM DC OFFSET simplified abstract (Apple Inc.)

From WikiPatents
Jump to navigation Jump to search

SPLIT INPUT AMPLIFIER FOR PROTECTION FROM DC OFFSET

Organization Name

Apple Inc.

Inventor(s)

Hongrui Wang of San Jose CA (US)

Abbas Komijani of Mountain View CA (US)

Xinhua Chen of San Diego CA (US)

SPLIT INPUT AMPLIFIER FOR PROTECTION FROM DC OFFSET - A simplified explanation of the abstract

This abstract first appeared for US patent application 18484265 titled 'SPLIT INPUT AMPLIFIER FOR PROTECTION FROM DC OFFSET

Simplified Explanation

Embodiments of this patent application provide apparatus and techniques to reduce a direct current (DC) voltage offset between a transmitter and receiver. The receiver includes a first unit gain buffer that receives a reference voltage signal from a reference voltage source. The transmitter is communicatively coupled to the receiver and includes a second unit gain buffer that is also communicatively coupled to the first unit gain buffer. The transmitter also includes an amplifier (e.g., an operational amplifier) with multiple positive inputs coupled to the second unit gain buffer and an offset tracker. The offset tracker compensates for a DC offset caused by a power supply and/or a ground bounce.

  • The patent application aims to reduce the DC voltage offset between a transmitter and receiver.
  • A shared reference voltage signal is generated by a reference voltage source.
  • The receiver includes a first unit gain buffer that receives the reference voltage signal.
  • The transmitter is connected to the receiver and includes a second unit gain buffer that is connected to the first unit gain buffer.
  • The transmitter's amplifier has multiple positive inputs connected to the second unit gain buffer and an offset tracker.
  • The offset tracker compensates for DC offset caused by power supply and/or ground bounce.

Potential applications of this technology:

  • Communication systems: This technology can be applied in various communication systems, such as wireless communication, wired communication, and data transmission systems, to reduce DC voltage offset between transmitters and receivers.
  • Audio/video equipment: This technology can be used in audio and video equipment, such as amplifiers, speakers, and displays, to minimize DC voltage offset and improve signal quality.
  • Sensor systems: This technology can be implemented in sensor systems, including temperature sensors, pressure sensors, and motion sensors, to reduce DC voltage offset and enhance accuracy.

Problems solved by this technology:

  • DC voltage offset: The technology addresses the issue of DC voltage offset between transmitters and receivers, which can cause signal distortion and affect the accuracy of data transmission.
  • Power supply and ground bounce: The offset tracker compensates for DC offset caused by power supply and ground bounce, mitigating the impact of these factors on the overall system performance.

Benefits of this technology:

  • Improved signal quality: By reducing DC voltage offset, this technology helps maintain the integrity of transmitted signals, resulting in improved signal quality and reduced distortion.
  • Enhanced accuracy: Minimizing DC voltage offset in sensor systems improves the accuracy of measurements and ensures reliable data acquisition.
  • Compatibility: The apparatus and techniques described in the patent application can be implemented in various communication and electronic systems, making them compatible with existing technologies and infrastructure.


Original Abstract Submitted

Embodiments presented herein provide apparatus and techniques to reduce a direct current (DC) voltage offset between a transmitter and receiver. Embodiments include a shared reference voltage signal generated by a reference voltage source. The receiver may include a first unit gain buffer to receive a reference voltage signal from the reference voltage source. The transmitter may be communicatively coupled to the receiver via one or more connections and may include a second unit gain buffer communicatively coupled to the first unit gain buffer via one of the connections. An amplifier (e.g., an operation amplifier) of the transmitter may include multiple positive inputs coupled to the second unit gain buffer and an offset tracker. The offset tracker may compensate for a DC offset caused by at least a power supply and/or a ground bounce.

Retrieved from "http://wikipatents.org/index.php?title=18484265._SPLIT_INPUT_AMPLIFIER_FOR_PROTECTION_FROM_DC_OFFSET_simplified_abstract_(Apple_Inc.)&oldid=31535"