Patent ID: 8102554
Filing Date: 2012-01-24
Classification: B41J,B42C,B42P,B43K,B65H,C09D,G06F,G06K,G06Q,G07D,H04N,H04W,Y02D,Y10S,Y10T

Abstract:
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.