摘要:
The invention concerns a computer system enabling collaborative document markup. Employing the invention involves the use of one or more forms which support interaction with a computer system or network. Each form is printed on sheet material such as paper and includes printed data readable by the user and coded data which allows interaction with the computer system via a sensing device operated by a user.
摘要:
A method and system for enabling handwritten note taking and retrieval, whereby a user is able to electronically capture, manage and search notes handwritten on paper by the user using one or more forms printed on paper and using a sensing device which senses coded data included in the printed forms.
摘要:
A method for providing information is disclosed. Page descriptors are stored in a server. A printed page is printed by a printer with visible and invisible data. The invisible data is indicative of one or more of the page descriptors. A sensing device senses the invisible data when placed in an operative position relative to the printed page, and transmits information extracted from sensed invisible data to the server. The page descriptor of the printed page is identified by the server, and information associated with the page descriptor and positioning of the sensing device relative to the printed page is provided by the server.
摘要:
A system for providing information is disclosed. The system has a server which stores page descriptors. A printer is also includes which prints a printed page with visible and invisible data. The invisible data is indicative of one or more of the page descriptors. A sensing device senses the invisible data when placed in an operative position relative to the printed page, and transmits information extracted from sensed invisible data to the server. The server is configured to interpret the positioning of the sensing device based upon the page descriptors indicated by sensed invisible data and to provide information associated with the page descriptors.
摘要:
An optically imaging pen for interacting with a printed substrate. The pen includes: a nib for interacting with the printed substrate; an image sensor for imaging an area of the printed substrate to provide image data; a processor configured for: (i) identifying target elements in the image data and inferring a perspective transform due to a tilt of the pen; (ii) acquiring and decoding coded data contained in the image data; (iii) calculating a nib position using a tag location, the perspective transform and a known geometry of pen optics; and (iv) generating digital ink based on the nib position.
摘要:
A sensing device is provided for sensing data encoded on a surface. The device has a region identity sensor and a transmitter. The region identity sensor senses region identity data of the coded data when the sensing device is positioned or moved relative to a region of the surface. The region identity data is indicative of an identity of the region. The transmitter transmits the sensed region identity data to a computer system.
摘要:
A processing system for digitizing a freehand graphic created by an optically imaging pen. The processing system is configured for: receiving digital ink representing interaction of the pen with a surface having a position-coding pattern printed thereon, the digital ink identifying one or more positions detected by the pen; determining if the detected position is in a first area or a second area of the surface; if the detected position is in the first area of the surface, then interpreting the position as a point in a freehand graphic; and if the detected position is in the second area of the surface, then interpreting the position as a selection of a property for the freehand graphic.
摘要:
An optically imaging pen for interacting with a printed substrate. The pen includes: a nib for interacting with the printed substrate; an image sensor for imaging an area of the printed substrate to provide image data; a processor configured for: (i) identifying target elements in the image data and inferring a perspective transform due to a tilt of the pen; (ii) acquiring and decoding coded data contained in the image data; (iii) calculating a nib position using a tag location, the perspective transform and a known geometry of pen optics; and (iv) generating digital ink based on the nib position.
摘要:
A pen-shaped sensing device is provided for sensing coded data disposed which is substantially invisible to the average unaided human eye on a surface. The device has a region identity sensor configured to sense, when the sensing device is positioned or moved relative to a region of the surface, and using at least some of the coded data, region identity data indicative of an identity of the region, and a transmitter configured to transmit the sensed region identity data to the computer system to a computer system.
摘要:
An optical imaging pen configured to detect information encoded on a page with ink which is substantially invisible to the human eye. The pen includes a housing, an electronics chassis mounted inside the housing, and an infrared LED supported by the chassis for providing infrared radiation for projection onto the page. The pen also includes an image sensor for receiving reflected radiation from the surface, a radio frequency circuit having a radio frequency (RF) transmitter and receiver, and a radio antenna mounted within the housing, said antenna in signal communication with the radio frequency transmitter and receiver. Further included are a controller circuit for controlling operation of the LED, sensor and radio frequency circuit, as well as a pair of orthogonal accelerometers mounted in a normal plane of the pen axis, said accelerometers allowing the pen to sense motion without reference to a surface location.