17881513. Hybrid Radar with Reconfigurable Filters simplified abstract (Apple Inc.)

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Hybrid Radar with Reconfigurable Filters

Organization Name

Apple Inc.

Inventor(s)

Joonhoi Hur of Sunnyvale CA (US)

Harald Pretl of Schwertberg (AT)

Hybrid Radar with Reconfigurable Filters - A simplified explanation of the abstract

This abstract first appeared for US patent application 17881513 titled 'Hybrid Radar with Reconfigurable Filters

Simplified Explanation

The patent application describes an electronic device with wireless circuitry that can detect the range to an external object using transmitted and received signals. The device includes a receive path with a mixer, an analog-to-digital converter (ADC), and a filter.

  • The wireless circuitry includes one or more antennas for transmitting and receiving radio-frequency signals.
  • The device can detect the range to an external object based on the transmitted and received signals.
  • The receive path includes a mixer, an ADC, and a filter.
  • The wireless circuitry has a bypass path with a switch that can be closed to bypass the filter in the receive path.
  • When the switch is closed, the device can detect the range to the external object within an ultra-short range (USR) domain.
  • When the switch is open, the device can detect the range to the external object within a far-field domain.
  • The filter in the receive path filters the reflected signals to remove undesired leakage and maximize dynamic range.

Potential Applications

  • Distance measurement and ranging in various applications such as robotics, automotive, and industrial automation.
  • Proximity sensing for touchless user interfaces in smartphones, tablets, and other electronic devices.
  • Object detection and tracking for security systems and surveillance.

Problems Solved

  • Provides a way to detect the range to an external object using wireless signals.
  • Allows for range detection within both ultra-short range and far-field domains.
  • Filters out undesired leakage in the received signals to improve accuracy.

Benefits

  • Enables accurate and reliable range detection without the need for physical contact.
  • Provides flexibility to detect range within different domains.
  • Maximizes dynamic range by filtering out undesired signals.


Original Abstract Submitted

An electronic device may include wireless circuitry with one or more antennas that transmit radio-frequency signals and that receive corresponding reflected signals. The wireless circuitry may detect a range to an external object based on the transmitted and received signals. The wireless circuitry may include a receive path having a mixer, an analog-to-digital converter (ADC), and a filter between the mixer and the ADC. The receive path may include a bypass path with a switch coupled around the filter. The wireless circuitry may detect the range to the external object within an ultra-short range (USR) domain when the switch is closed, thereby bypassing the filter in the receive path. The wireless circuitry may detect the range to the external object within a far-field domain when the switch is open. The filter may filter the reflected signals to remove undesired leakage and maximize dynamic range.