Optical imaging pen having a force sensor
First Claim
1. An optical imaging pen configured to detect information encoded with infrared ink on a page, said pen comprising:
- a housing;
an ink pen cartridge and a stylus mounted in the housing, the ink cartridge and stylus configured to be individually brought forward through an open end of the housing by rotation of a pen top rotatably mounted on an end of the housing;
an infrared LED inside the housing for providing infrared radiation for projection onto the page;
an image sensor for receiving reflected radiation from the surface;
a radio frequency circuit having a radio frequency (RF) transmitter and receiver; and
a controller for controlling operation of the LED, sensor and radio frequency circuits, the controller having a force sensor configured to detect displacement of the stylus or cartridge to enable a determination of a force being applied to the nib and the cartridge.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is an optical imaging pen configured to detect information encoded with infrared ink on a page. The pen includes a housing with an ink pen cartridge and a stylus. The ink cartridge and stylus are configured to be individually brought forward through an open end of the housing by rotation of a pen top rotatably mounted on an end of the housing. The pen also includes an infrared LED inside the housing for providing infrared radiation for projection onto the page, and an image sensor for receiving reflected radiation from the surface. Also included is a radio frequency circuit having a radio frequency (RF) transmitter and receiver, and a controller for controlling operation of the LED, sensor and radio frequency circuits. The controller includes a force sensor configured to detect displacement of the stylus or cartridge to enable a determination of a force being applied to a nib of either the cartridge or stylus.
32 Citations
7 Claims
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1. An optical imaging pen configured to detect information encoded with infrared ink on a page, said pen comprising:
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a housing; an ink pen cartridge and a stylus mounted in the housing, the ink cartridge and stylus configured to be individually brought forward through an open end of the housing by rotation of a pen top rotatably mounted on an end of the housing; an infrared LED inside the housing for providing infrared radiation for projection onto the page; an image sensor for receiving reflected radiation from the surface; a radio frequency circuit having a radio frequency (RF) transmitter and receiver; and a controller for controlling operation of the LED, sensor and radio frequency circuits, the controller having a force sensor configured to detect displacement of the stylus or cartridge to enable a determination of a force being applied to the nib and the cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification