Patent ID: 8149227
Filing Date: 2012-04-03
Classification: G06F

Abstract:
1. A smart pen device for attenuating click noise generated during writing comprising: one or more microphones coupled to a processor for capturing audio data; an onboard memory coupled to the processor and computer program instructions stored on the onboard memory causing the processor to store the audio data captured by the one or more microphones in the onboard memory; a writing cartridge comprising a magnetic material for producing written data; and a low-force biasing system comprising: a first magnet embedded and recessed into a first side of an internal cavity of the smart pen, the first side perpendicular to the direction in which the writing cartridge applies a force to a writing surface; and a second magnet embedded and recessed into a second side of the smart pen internal cavity, the second side perpendicular to the direction in which the writing cartridge applies the force to the writing surface, the first magnet and second magnet each exerting a radial force biasing the writing cartridge towards the first side of the smart pen internal cavity or the second side of the smart pen internal cavity.