Electronic microcopier apparatus

• US 4,523,235 A
• Filed: 01/11/1982
• Issued: 06/11/1985
• Est. Priority Date: 01/11/1982
• Status: Expired due to Term

• Current Assignee: Ricoh Company Limited
• Original Assignee: Jan Rajchman
• Inventors: Rajchman, Jan
• Primary Examiner(s): ORSINO JR, JOSEPH
• Application Number:
  US06/338,505
• Time in Patent Office: 1,247 Days
• Field of Search: 364/705, 358/256, 358/286, 358/285, 358/293, 358/294, 357/19, 346/76 PH, 346/135.1, 346/143, 346/165, 250/528
• US Class Current: 358/472
• CPC Class Codes: B41J 3/28 for printing downwardly on flat surfaces, e.g. of books, drawings, boxes , envelopes, e.g. flat-bed ink-jet printers
• CPC Class Codes: B41J 3/44 Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
• CPC Class Codes: B41M 5/30 using chemical colour formers B41M5/34 takes precedence
• CPC Class Codes: H04N 1/031 the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors
• CPC Class Codes: H04N 1/032 for picture information reproduction
• CPC Class Codes: H04N 1/0473 in subscanning direction, e.g. picture start or line-to-line synchronisation
• CPC Class Codes: H04N 1/107 with manual scanning
• CPC Class Codes: H04N 1/1075 Arrangements for facilitating holding of the scanner, e.g. shapes, grips
• CPC Class Codes: H04N 2201/02439 Positioning method
• CPC Class Codes: H04N 2201/0471 using dedicated detectors
• CPC Class Codes: H04N 2201/04717 on the scanned sheet, e.g. a reference sheet
• CPC Class Codes: H04N 2201/04724 on a separate encoder wheel
• CPC Class Codes: H04N 2201/04734 Detecting at frequent intervals, e.g. once per line for sub-scan control
• CPC Class Codes: H04N 2201/04786 Controlling a start time, e.g. for output of a line of data H04N2201/04784 takes precedence
• CPC Class Codes: H04N 2201/04787 by changing or controlling the addresses or values of pixels, e.g. in an array, in a memory, by interpolation
• CPC Class Codes: H04N 2201/04794 Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line

Abstract

An electronic microcopier apparatus includes a reading head, an electronic memory and a writing head, all contained within a small case that may be held in the hand. In the reading mode the instrument is passed over images, such as written text, where photosensors read the optical information and transmit that information to the electronic memory. The electronic memory stores the information until the device is used in the writing mode. In the writing mode, the information from the electronic memory is fed to a writing head and is faithfully reproduced on a piece of paper. A wheel with angular markings rolls as the copier is displaced over the textural material in both reading and writing modes and thereby makes it possible to ascertain the position of the copier. The invention has the advantage of extreme portability. Several alternative embodiments of the invention are disclosed.

Claims

1. A pocket sized copying apparatus that copies by manually sweeping said apparatus across the material to be copied and subsequently manually sweeping said apparatus across the material upon which the copy is to be made, said apparatus comprising:

optical reading means for reading the information to be copied and for producing signals related thereto;

addressable electronic memory means for storing said information read by said optical reading means;

writing means controlled by said information stored by said addressable electronic memory means for reproducing the information to be copied;

position reckoning means for producing signals codifying the position of said reading means when it is swept across the material to be copied and for codifying the position of said writing means when it is subsequently swept across the material upon which the copy is to be made;

addressing means to address said addressable electronic memory means in accordance with said position codifying signals,

wherein said optical reading means, memory means, writing means, position reckoning means and said addressing means are physically integrated into a hand-holdable unit.

2. The apparatus of claim 1 further comprising:

gimbel means for connecting said reading and said writing means to said case.

3. The apparatus of claim 1 further comprising:

a first gimbel means for allowing said reading means to rotate freely in two substantially respectively perpendicular directions; and

,

a second gimbal means for allowing said writing means to rotate freely in two substantially respectively perpendicular directions.

4. The apparatus of claim 1 further comprising:

a gimbel means for allowing said reading and writing means to rotate simultaneously in two substantially respectively perpendicular directions.

5. The apparatus of claim 1 further comprising:

a spring means for pressing said writing means against the surface of the material upon which said copy is to be made.

6. The apparatus of claim 1 wherein said memory means comprises:

a random access electronic memory for storing the signals from said optical reading means at addresses determined by said position codifying signals and for controlling said writing means in accordance with the stored information at addresses determined by said position codifying signals.

7. The apparatus of claim 1 further including:

battery means for energizing said apparatus.

8. The apparatus of claim 1 wherein said optical reading means includes a plurality of photosensors.

9. The apparatus of claim 8 further including

a light source to illuminate the material to be copied.

10. The apparatus of claim 8 wherein said writing means includes a plurality of thermal elements equal in number to the number of said photosensors.

11. The apparatus of claim 10 further comprising:

means for thermally sensitizing the surface of the material upon which the copy is made during the sweep of said apparatus prior to writing on said material by said thermal elements.

12. The apparatus of claim 1 wherein said position reckoning means includes:

a wheel having indicia thereon, said wheel being rotatably attached to said apparatus;

electronic counting means for counting said indicia on said wheel; and

,

means to produce position codifying signals in response to said electronic counting means.

13. The apparatus of claim 12 wherein said indicia comprise optically detectable markings on said wheel, said apparatus further including:

marking illumination means for illuminating said markings; and

,

marking reading means for optically detecting said markings.

14. The apparatus of claim 1 further including:

a hand-holdable case for manipulating said apparatus.

15. The apparatus of claim 14 wherein said hand-holdable case has a shape and size similar to that of a fountain pen.

16. The apparatus of claim 15 wherein said optical reading means is located at one end of said case and said writing means is located at the opposite end of said case.

17. The apparatus of claim 15 wherein said optical reading means and said writing means are located substantially adjacent to one another at the same end of said case.

18. A portable electronic copying apparatus that copies by manually sweeping it across the document to be copied and subsequently manually sweeping it across the material upon which the copy is made, said apparatus comprising:

a light source to illuminate the material to be copied;

a plurality of photosensors equally spaced in a row;

an addressable electronic memory with a bit storage capacity substantially greater than the number of said photosensors;

a plurality of printer elements equal in number to that of said plurality of photosensors, said printer elements being spaced equally in a row similar to that of said photosensors, said photosensor and printer rows being parallel to one another and substantially perpendicular to the direction of the sweep of said apparatus;

position measuring means for measuring the position of said row of photosensors as that row is swept across the document to be copied and for measuring the position of said printer element row on the surface of the material on which the copy is to be made as said row is swept across said surface;

addressing means to direct responses of said photosensors into said memory at addresses determined by said position measuring means; and

,

energizing means to energize said printer elements in response to signals stored in said memory at addresses determined by said position measuring means,

wherein said position measuring means provides information concerning the position of said photosensors to said addressing means which information is subsequently used to direct the printing of said printer elements at the correct relative location with respect to said photosensors so that the information read by said photosensors is accurately duplicated by said printer elements.

19. The apparatus of claim 18 further comprising:

a pen-like case for containing the elements of said apparatus and for hand manipulating said apparatus.

20. A portable copying apparatus for reading documents and copying the information thereon onto other materials, said apparatus comprising:

a light source;

reading means for detecting optical information and producing an output related thereto;

addressable electronic memory means connected to said reading means for storing said output from said reading means;

writing means connected to said memory means for reproducing the information read by said reading means;

position reckoning means for reckoning the position of said reading means over said document to be copied and for reckoning the position of said writing means over the material upon which the copy is subsequently to be made and for correlating the writings at any position over said material upon which the copy is made with respect to readings made at the same relative position on said document; and

,

optical means for directing light from said light source onto the material to be read and for transmitting said light from said material to be read to said reading means.

21. The apparatus of claim 20 wherein said reading means comprises a plurality of photosensors and associated amplifiers and wherein said writing means comprises a plurality of heater elements and associated amplifiers, and wherein said reading means and said writing means are integrated on one side of a single semiconductor chip, said chip also containing a random access memory with associated input and output registers as well as associated address register and circuitry, thereby integrating on a single chip all reading, memory and writing means.

22. The apparatus of claim 20 wherein said optical means comprises two bundles of optical fibers, one bundle for guiding light from said light source to the region of the surface of the material to be read and the other bundle for guiding the light returned therefrom.

23. The apparatus of claim 20 wherein said optical means includes a plurality of disc-like cylindrical lenses having reflective sides.

24. The apparatus of claim 20 wherein said reading means comprises a plurality of photosensors and associated amplifiers, and wherein said writing means comprises a plurality of heater elements and associated amplifiers, and wherein said reading means and said writing means are integrated into a single semiconductor chip, said chip also containing a shift register and associated circuitry, thereby permitting information to be read out from said chip to said memory means and permitting information from said memory means to be read into said chip.

31. The apparatus of claim 21 further including in said case a calculator which operates independently of said copier apparatus.

25. A portable copying apparatus for reading a document and subsequently making a copy of said document on other material, said apparatus comprising:

light source means;

reading means for detecting optical information and producing an output related thereto;

electronic memory means connected to said reading means for storing said output from said reading means;

writing means connected to said memory means for reproducing the information read by said reading means;

position reckoning means for producing signals codifying positions of said reading means when said apparatus is moved across material to be copied and for codifying the positions of said writing means when said apparatus is subsequently swept across the material upon which the copy is to be made,

wherein said light source means and said reading means are in substantially abutting relationship.

26. The apparatus of claim 25 wherein said reading means, memory means and said writing means are integrated on a first chip and wherein said light source is integrated on a second chip, said first and second chips abutting each other in such a relationship as to make the reading means on said first chip responsive to the light from said second chip which is returned from the document to be copied.

27. The apparatus of claim 25 further comprising:

a case for containing the elements of said apparatus and for holding said apparatus so that said apparatus can be manually swept over the material to be copied and subsequently over the material upon which the copy is to be made.

28. The apparatus of claim 27 wherein said case has an elongated pen-like shape.

29. The apparatus of claim 27 wherein said case is box-like in shape and wherein said apparatus can read, write, and copy a relatively wide sweep of material.

30. The apparatus of claim 27 wherein said apparatus further includes:

a calculator means in said case.

32. A portable, hand-holdable, self-contained copier apparatus contained in a manipulatable case comprising:

reading means for detecting optical information on a document and producing an output related thereto;

electronic storage means connected to said reading means for storing said output from said reading means;

heater means connected to said storage means for reproducing on plain paper the information read by said reading means;

position reckoning means for reckoning the position of said reading means over the document to be copied and of the position of said heating means over the plain paper on which the copy is to be made and for correlating the writings made by said heater means at any given position over said paper with the readings made by said reading means from said document at the same relative position on said document, so that said heating means accurately duplicates the information read by said reading means;

roller means for applying a thermosensitive liquid on the surface of said plain paper just prior to writing thereon by said heater means; and

,

means for preventing said roller means from applying said liquid when said reading means is detecting optical information.

33. A hand-holdable, self-contained microcopier apparatus for copying documents by first manually sweeping said apparatus over said documents at an arbitrary first sweep rate and second, subsequently, manually sweeping said apparatus over a thermally sensitive paper at an independent second rate of sweep, said apparatus including:

illumination means for illuminating said document;

a number "n" of photosensors equally spaced in a row;

an equal number "n" of heaters spaced identically to said photosensors in another parallel row;

an electronic memory having "n" inputs and "n" outputs in parallel access panels, said memory being randomly addressable to "N" addresses, each storing "n" bits in parallel, said memory having a total storage capacity of "n" x "N" bits substantially greater than "n";

position reckoning means for measuring the position of said apparatus over said document in its first sweep and the position of said apparatus over said paper in its second sweep and including means to generate a digital binary number which codifies said measured position;

selecting means to select one address among the "N" addresses of said memory in accordance with said digital binary number;

storage means to store in said memory the responses of said "n" photosensors at said selected addresses during said first sweep; and

,

energizing means to energize said "n" heaters in response to the stored "n" bits in said memory at said selected addresses during said second sweep.

34. A method for copying a document with a hand held apparatus, said apparatus including a row of "n" equally close-spaced photosensors, an equal number of "n" printer elements in a parallel identically spaced row, a random access memory with "n" parallel input and output channels and "N" addresses, position measuring means to measure the location of said apparatus when it is reading information from said photosensors and when it is printing the same information by means of said printer elements, said method comprising the steps of:

manually sweeping said apparatus over said document at a first sweep rate;

storing signals from said "n" photosensors in response to said sweeping in said "N" memory addresses as determined by said position measuring means; and

,

subsequently sweeping said apparatus over said document at a second sweep rate in such a fashion that said printer elements are selectively energized in accordance with said stored responses in said memory at memory addresses determined by said position measuring means,

wherein said first sweep rate is independent of said second sweep rate.

35. A hand-holdable copying apparatus for copying documents by first scanning said apparatus over said document and by subsequently scanning said apparatus over the surface of the material upon which the copy is to be made, said apparatus including:

reading means for sensing the optical information on said document and producing an output related thereto;

an addressable memory for storing the output from said reading means;

writing means controlled by said addressable memory for reproducing the information from said document on said material upon which the copy is to be made;

odometer position reckoning means for measuring the position of said reading means when it is moved across said document and for measuring the position of said writing means when it is subsequently moved across the surface of the material upon which the copy is made and for generating digital signals codifying said measured positions;

addressing means to address said addressable memory with said digital signals which codify the position of said apparatus so that the writing produced by said writing means at any location on the material upon which the copy is made is exactly a duplicate of the information read by said reading means at the same relative position on said document,

wherein said reading means, memory means, writing means odometer means and addressing means are physically integrated in a hand-holdable unit.