Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

CRT TELECOPIER

IP.com Disclosure Number: IPCOM000024972D
Original Publication Date: 1983-Feb-28
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 160K

Publishing Venue

Xerox Disclosure Journal

Abstract

A portable telecopier send and receive unit 1 is shown in the figure. A typical telecopier communication would involve two such units, one operating in a transmit mode and one operating in a receive mode. The unit comprises a television camera 2 to format documents in a transmit mode and a cathode ray tube 3 to image documents onto a conventional xerographic copier (not shown) in a receive mode. Both send and receive modes rely on a digital storage unit for storing digital representations of the documents.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 56% of the total text.

Page 1 of 4

CRT TELECOPIER Proposed Daniel E. Freeman Classification

U.S. Cl. 358/256
Int. Cl. H04n 1/00

Volume 8 Number 1 January/February 1983 63

[This page contains 1 picture or other non-text object]

Page 2 of 4

CRT TELECOPIER (Cont'd)

A portable telecopier send and receive unit 1 is shown in the figure. A typical telecopier communication would involve two such units, one operating in a transmit mode and one operating in a receive mode. The unit comprises a television camera 2 to format documents in a transmit mode and a cathode ray tube 3 to image documents onto a conventional xerographic copier (not shown) in a receive mode. Both send and receive modes rely on a digital storage unit for storing digital representations of the documents.

Communication between telecopier units is accomplished by a telephone link-up requiring a conventional modem 4 for converting the digital signals representing the document images into voice grade signals for telephone transmission. At the sending unit, a document 5 is placed into a document opening and held in place by a moving transparent plate 6 which pushes the original against a back plate 7. A light source 8 is then turned on so that a high resolution television picture of the document 5 can be taken by the camera 2 which views an image of the document reflected from two mirrors 9, 10. The output from the camera 2 is then communicated to a digital storage unit (not shown) where the image is stored in a digital format.

After imaging has been completed, the light source 8 is turned off and the document 5 exits the unit 1 at 13 after the movable plate 6 has been released and an exit feeder 11 moves the document away from its imaging position. The capability for storing documents varies depending upon the size of the memory unit. It is envisioned' that 'a typical telecopier unit constructed in accordance with the present design is capable of handling up to twenty individual documents at the same time and storing images of those documents in the storage unit.

In the imaging mode, the unit 1 converts image signals stored in the storage unit into control signals for generating a document image on a cathode ray tube 3 integrally supported within the unit 1. In operation, the unit 1 is placed on top of a modified xerographic photocopier in place of a document. The photocopier must be modified to allow its operation to be controlled by the telecopier unit I and in particular, it is necessary that the traveling light source within the photocopier be turned off during telecopier imaging. When a start button on the telecopier unit 1 is pressed, a high resolution television picture is generated on the cathode ray tube 3 from image information stored in the memory unit. Portions of the CRT image are transmitted to the photocopier/photoconductor with the aid of a traveling slit 14 driven by a transport 12 incorpora...