18339140. READING APPARATUS AND CONTROL METHOD simplified abstract (CANON KABUSHIKI KAISHA)

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READING APPARATUS AND CONTROL METHOD

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

MASATO Eiyama of Kanagawa (JP)

KAZUYA Koizumi of Tokyo (JP)

TAKUYA Tsunemi of Tokyo (JP)

READING APPARATUS AND CONTROL METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 18339140 titled 'READING APPARATUS AND CONTROL METHOD

Simplified Explanation

The patent application describes a reading apparatus that includes a conveyance roller, a reading unit, a detection unit, a storage unit, and a timing control circuit.

  • The conveyance roller is responsible for moving the medium.
  • The reading unit reads an image of the medium as it is conveyed by the roller.
  • The detection unit detects the rotation phase of the conveyance roller.
  • The storage unit stores index values associated with the rotation phase of the roller, representing the amount of conveyance per rotation angle.
  • The timing control circuit selects the appropriate index value based on the detection result and controls the reading timing of the reading unit based on the cumulative value of selected index values and a threshold corresponding to the desired reading resolution.

Potential applications of this technology:

  • Document scanners
  • Photocopiers
  • Fax machines
  • Image recognition systems

Problems solved by this technology:

  • Ensures accurate reading of the medium by controlling the reading timing based on the rotation phase of the conveyance roller.
  • Provides a mechanism to adjust the reading resolution based on the cumulative value of selected index values.

Benefits of this technology:

  • Improved accuracy in reading images of the medium.
  • Ability to adjust the reading resolution based on specific requirements.
  • Efficient and precise control of the reading timing.


Original Abstract Submitted

A reading apparatus includes a conveyance roller configured to convey a medium, a reading unit configured to read an image of the medium conveyed by the conveyance roller, a detection unit configured to detect a rotation phase of the conveyance roller, a storage unit configured to store index values, each index value being associated with the rotation phase of the conveyance roller and corresponding to a conveyance amount of the conveyance roller per unit rotation angle, and a timing control circuit configured to select the index value based on a detection result of the detection unit and to control a reading timing of the reading unit based on a result of comparing a cumulative value of selected index values with a threshold corresponding to a reading resolution.