Handwriting input device of electronic device
AssigneeHon Hai Precision Industry Co., Ltd.
InventorCHIU-MEI LAI
Life of this patent
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Abstract
A handwriting input device includes a shell, a refill, a light emitting unit, a pressure sensing unit, a light sensing unit, a track determining unit, and a transmitting unit. The refill includes a nib and a distal end. The light emitting unit emits light on a writing medium. The light sensing unit captures images on the writing medium and analyzes the images to obtain a track of the nib. The pressure sensing unit senses whether the nib writes on the writing medium. The track determining unit determines a writing track based on the track of the nib and a sensing result of the pressure sensing unit. The transmitting unit transmits the writing track to an electronic device. The writing track is used to determine an input operation of the electronic device.
Claims20
A handwriting input device comprising:
- a shell;
- a refill comprising a nib and a distal end opposite the nib, the nib configured to write on a medium and positioned outside of the shell;
- a light emitting unit configured to emit light on the medium;
- a light sensing unit configured to capture images at a predetermined rate on the writing medium and analyze the images to obtain a track of the nib;
- a pressure sensing unit configured to sense whether the nib is in contact with the medium;
- a track determining unit configured to determine a writing track based on the track of the nib and a sensing result of the pressure sensing unit when the handwriting input device is in a writing mode, which is used to input words to an electronic device communicating with the handwriting input device;
- and
- a transmitting unit configured to transmit the writing track to the electronic device, the writing track being used to determine an input operation of a cursor of the electronic device.
An electronic pen comprising a plurality of modes, the electronic pen comprising:
- a refill comprising a nib, the nib configured to write on a writing medium;
- a light emitting unit configured to emit light on the writing medium;
- an image capturing unit configured to frequently capture images on the writing medium and analyze the images to obtain a track of the nib;
- a pressure sensing unit configured to sense whether the nib writes on the writing medium;
- wherein one of the plurality of modes is a writing mode for inputting words to an electronic device;
- a track determining unit configured to determine a writing track based on the track of the nib and a sensing result of the pressure sensing unit when the handwriting input device is in the writing mode;
- and
- a transmitting unit configured to transmit the writing track to the electronic device, the writing track as a basis to input a word to the electronic device.
Dependencies are inferred from the claim text.