Abstract: A whiteboard cleaning system includes a user movement sensor that determines when a user is inactive; a whiteboard capture camera that makes an image of the whiteboard when the user movement sensor detects that the user is inactive; a classification module that classifies the image with a pre-trained image data set using an augmentation technique to enhance the size of the image data set and determines whether the whiteboard needs to be cleaned based on the classification, through transfer learning, using the image data set; and a wiper that cleans the whiteboard when the classification module determines that the whiteboard needs to be cleaned.

Abstract: A portable device provides a retractable writing surface that may be extended from a housing and held sufficiently flat by the device to facilitate marking on the writing surface with a writing implement, such as a dry-erase marker. The device maintains sufficient rigidity in the extended writing surface, such that the device may be used without an additional support surface, such as a clip board or table. The writing surface may be retracted back into the housing to protect the writing surface and to reduce the size of the device for storage or transport. Retracting the writing surface may include rolling the writing surface onto a spool. One or more resilient members may be used to make the extended writing surface flat when the writing surface is extended from the housing. The writing surface may include a flexible computer display screen.

Abstract: A portable, retractable writing surface device provides a writing surface that may be extended from a housing and held sufficiently flat by the device to facilitate marking on the writing surface with a writing implement, such as a dry-erase marker, chalk, grease crayon, pencil, pen, permanent marker or the like. The device maintains sufficient rigidity in the extended writing surface, such that the device may be used without an additional support surface, such as a clip board or table. The writing surface may be retracted back into the housing to protect the writing surface and to reduce the size of the device for storage or transport, such as within a pocket or briefcase. Retracting the writing surface may include rolling the writing surface onto a spool, accordion folding the writing surface or otherwise reconfiguring the writing surface to make it fit into a compact space (collectively referred to herein as “compressing” the writing surface).

Abstract: A drawing system including a portable storage housing; a drawing surface, moveably coupled to the portable storage housing by a biasing subsystem, the drawing surface including a storage mode and a deployed mode wherein the storage mode provides the drawing surface inside the housing and inaccessible for receipt of content and wherein the deployed mode extends the drawing surface outside of the housing and accessible for receipt of content; wherein transition of the drawing surface from the storage mode to the deployed mode activates the biasing subsystem and wherein the biasing subsystem automatically transitions the drawing surface from the deployed mode to the storage mode when operated by a user.

Abstract: A marker screen assembly includes a housing, a first screen stored within the housing and movable to an extended position, and a second marker screen stored within the housing and movable to an extended position. The second marker screen has a writing surface designed to be repeatably written upon and erased and is configured to overlay at least a portion of the first screen when both the first and second screens are in the extended position.

Abstract: A portable, retractable writing surface device provides a writing surface that may be extended from a housing and held sufficiently flat by the device to facilitate marking on the writing surface with a writing implement, such as a dry-erase marker, chalk, grease crayon, pencil, pen, permanent marker or the like. The device maintains sufficient rigidity in the extended writing surface, such that the device may be used without an additional support surface, such as a clip board or table. The writing surface may be retracted back into the housing to protect the writing surface and to reduce the size of the device for storage or transport, such as within a pocket or briefcase. Retracting the writing surface may include rolling the writing surface onto a spool, accordion folding the writing surface or otherwise reconfiguring the writing surface to make it fit into a compact space (collectively referred to herein as “compressing” the writing surface).

Abstract: A magnetically active laminate is disclosed. The magnetically active laminate is composed of a resin impregnated layer bonded to a distinct, magnetically active sheet. The laminate is especially well suited for use in the construction of erasable markerboards and cubicle panels, although many applications are possible within the scope of the present invention.

Abstract: A printing composition that is adapted for printing on computer printers and the like. The printing composition includes a backing sheet and a printing sheet. The printing sheet includes an electret which is reversibly bound to the backing sheet. In one embodiment of the invention, the printing sheet is coated with an ink absorbing coating. The electret can be constructed from materials such as polypropylene or polyethylene that have been subjected to electrostatic fields.

Abstract: Described herein is a collaborative drawing device having a support surface configured to support a drawing medium for drawing thereupon by a human user. The drawing device includes a printer that prints prepared graphics on the drawing medium and a scanner that scans documents that have been printed, drawn by hand, and annotated by hand.

Abstract: A liquid non-poisonous, non-metallic, edible, water soluble coloring fluid fills a felt-tipped marker. A plastic box houses the marker or a plurality of the markers. A surface on the box receives the marks from the felt-tipped marker. In one embodiment, the box is in the form of a toy vehicle. In other embodiments, there may be a plurality of stencils which can be arranged in a scene or a scroll which may be rolled to display a selected scene. Then a tracing of the scene may be made on an overlaying sheet of transparent plastic. An eraser in the form of a sponge with a plastic handle may be made wet to wash away the marks.

Abstract: Writing apparatus includes flexible electret film, capable of being erasably written upon with dry erase markers, as a writing medium. The apparatus includes a roll of electret film in a receptacle, brackets for mounting the receptacle to a wall or a conventional flip chart stand, and a cutter to separate the material into sheets.

Abstract: A writing board structure which can be folded in half length wise and reduced in height for storage and quickly and easily returned to its normal use condition. Wnen in a normal use condition the writing board surface can be selectively adjusted for height and angle relative to its supporting surface.

Abstract: An electronic print board is provided with an endless or continuous writing medium, on which a transparent sheet-shaped writing medium (3) is removably mounted. Any characters and figures written on both the writing media are combined, scaled down, and copied on recording paper by means of a recording device. In addition, another document can be inserted between the two writing media. Thus, the characters and figures written on the document and the transparent writing medium can be combined, scaled down, and copied on the recording paper by means of the recording device.

Abstract: An electronic print board which includes driving and support rollers rotatably mounted on a frame, an endless belt trained over the rollers, and a writing medium having a flat writing surface, wrapped around the rollers on the endless belt so as to substantially entirely surround the belt to thereby form an endless band-shaped screen. Fixing mediums are provided on the rear surface of the writing medium and the belt to removably mount the writing medium on the belt. A readout sensor receives light reflected from a picture image on the writing medium to provide a readout picture image to a recorder which records the picture image on recording paper. The exposed surface of the writing medium may be erasably written upon by, for example, a felt pen so that the writing medium may be repeatedly reused and easily detached and replaced when worn.