Paper feeding device, image scanning device, paper feeding method and computer readable medium
AssigneePfu Limited
InventorsMasanobu HONGO, Tetsuo FUNADA, Nobuhisa YAMAZAKI
Life of this patent
Estimating the term…
Abstract
There is provided a paper feeding device including: a microphone which detects sound occurred on a paper conveying path; a pre-processing unit which performs pre-processing on a signal of the sound detected by the microphone; and a jam detection unit which detects a jam of paper based on the sound signal on which the pre-processing is performed, a reference value about intensity of the sound, and a reference value about a duration time of the sound.
Claims9
A paper feeding device comprising:
- a microphone that detects sound occurred on a paper conveying path;
- a pre-processing unit that performs pre-processing on a signal of the sound detected by the microphone;
- and
- a jam detection unit that detects a jam of paper based on the sound signal on which the pre-processing is performed, a reference value about intensity of the sound, and a reference value about a duration time of the sound.
An image scanning device comprising:
- a paper conveying path;
- an image scanning unit that scans an image from paper conveyed on the paper conveying path;
- a microphone that detects sound occurred on the paper conveying path;
- a pre-processing unit that performs pre-processing on a signal of the sound detected by the microphone;
- and
- a jam detection unit that detects a jam of the paper based on the sound signal on which the pre-processing is performed, a reference value about intensity of the sound, and a reference value about a duration time of the sound.
A non-transitory computer-readable medium storing thereon a computer program used in a computer, the computer program causing the computer to perform the steps of:
- performing pre-processing on a signal of sound detected by a microphone;
- and
- detecting a jam of paper based on the sound signal on which the pre-processing is performed, a reference value about intensity of the sound, and a reference value about a duration time of the sound.
Dependencies are inferred from the claim text.