Abstract: A backpack with a compression system includes a backpack body having a top side, a bottom side, two lateral sides, a body side, an outer side and a pair of shoulder straps. Each shoulder strap has a first end connected at a junction of the top side and the body side, and a second end connected to the backpack body at a junction of the bottom side and the body side. Each strap extends along a corresponding lateral side and the bottom of the backpack body, and is slidably connected to the backpack body at a junction of the body side and a corresponding lateral side, and at a junction of the corresponding lateral side and the outer side.

Abstract: One aspect of the invention involves the output of a radio frequency (RF) identification tag by a writing instrument to indicate ink color or another characteristic associated with a line style parameter of the writing instrument. The RF identification tag is a wireless signal that uniquely identifies the line style parameters, such as physical-ink or virtual-ink color, produced when using the writing instrument. A writing tablet receives the RF identification tag and signals a computing device, responsible for displaying graphical representations made on the writing tablet, to display a portion of the graphical representation formed by that writing instrument with the characteristics of the line style parameters specified by the RF identification tag.

Abstract: One aspect of the invention involves a writing tablet comprising a housing having a writing surface and internal logic placed within the housing and situated below the writing surface. The internal logic includes imaging sensor, a light source and a controller. The imaging sensor is adapted to capture a location and orientation of each line segment forming a graphic image. The light source is adapted to produce a light beam adjusted for display on the writing surface. The controller is adapted to control performance of an event upon the light beam crossing a line segment of the graphic image.

Abstract: One aspect of the invention relates to an electronic writing device for interactive teaching of users to reproduce a selected graphical representation. The electronic writing device comprises a casing, a screen and internal logic placed within the casing. The internal logic controls adjustment of a light beam directed at a bottom surface of the screen to temporarily illuminate one or more light segments, visible on a top surface of the screen, in efforts to guide a user in writing the graphical representation.

Abstract: One aspect of the invention involves a writing tablet comprising a housing having a writing surface and internal logic placed within the housing and situated below the writing surface. The internal logic includes imaging sensor, a light source and a controller. The imaging sensor is adapted to capture a location and orientation of each line segment forming a graphic image. The light source is adapted to produce a light beam adjusted for display on the writing surface. The controller is adapted to control performance of an event upon the light beam crossing a line segment of the graphic image.

Abstract: One aspect of the invention involves the output of a radio frequency (RF) identification tag by a writing instrument to indicate ink color or another characteristic associated with a line style parameter of the writing instrument. The RF identification tag is a wireless signal that uniquely identifies the line style parameters, such as physical-ink or virtual-ink color, produced when using the writing instrument. A writing tablet receives the RF identification tag and signals a computing device, responsible for displaying graphical representations made on the writing tablet, to display a portion of the graphical representation formed by that writing instrument with the characteristics of the line style parameters specified by the RF identification tag.

Abstract: One aspect of the invention relates to an electronic writing device for interactive teaching of users to reproduce a selected graphical representation. The electronic writing device comprises a casing, a screen and internal logic placed within the casing. The internal logic controls adjustment of a light beam directed at a bottom surface of the screen to temporarily illuminate one or more light segments, visible on a top surface of the screen, in efforts to guide a user in writing the graphical representation.

Abstract: The inkjet stylus includes a nozzle for depositing ink onto a writing surface. The ink is drawn from an ink cartridge, which may contain a plurality of ink containers, each holding a different color ink. A switch mechanism is used to select different combinations of ink to produce different colors. A microcontroller controls the switch mechanism so as to select the combination of inks that will produce the desired color, and also controls how the ink is deposited on the writing surface using the nozzle. A battery powers the electronic devices in the inkjet stylus.

Abstract: A drawing tablet includes a surface and an imaging sensor. The imaging sensor captures an image from the surface of the drawing tablet. The image may be transmitted to a computer, where the image can be processed: for example, to correct for distortion or to animate a portion of the image.

Abstract: The inkjet stylus includes a nozzle for depositing ink onto a writing surface. The ink is drawn from an ink cartridge, which may contain a plurality of ink containers, each holding a different color ink. A switch mechanism is used to select different combinations of ink to produce different colors. A microcontroller controls the switch mechanism so as to select the combination of inks that will produce the desired color, and also controls how the ink is deposited on the writing surface using the nozzle. A battery powers the electronic devices in the inkjet stylus.

Abstract: A digital messaging pen includes a writing nib that a user can use to write a message. The digital messaging pen captures the message. The user then selects a destination for the message, and the digital messaging pen transmits the message to the destination.