Facsimile transmission system

• US 5,363,214 A
• Filed: 12/30/1991
• Issued: 11/08/1994
• Est. Priority Date: 05/30/1990
• Status: Expired due to Term

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Johnson, Walter A. L.
• Primary Examiner(s): Coles, Sr., Edward L.
• Assistant Examiner(s): Grant, II, Jerome
• Application Number:
  US07/814,514
• Time in Patent Office: 1,044 Days
• Field of Search: 358/403, 358/405, 358/434, 358/438, 358/448, 358/464, 358/467, 358/468, 358/470, 358/462, 358/440, 358/442, 358/400, 358/402, 358/404, 382/61, 382/48
• US Class Current: 358/462
• CPC Class Codes: G06F 40/174 Form filling; Merging
• CPC Class Codes: G06K 17/00 Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
• CPC Class Codes: G06K 19/08 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
• CPC Class Codes: H04N 1/4115 involving the recognition of specific patterns, e.g. by symbol matching

Abstract

Machine encoding of forms allows a simple recognition system to determine what marks on the form bear relevant information and, then to transmit only the relevant information, i.e. transmits bit maps representing the unique parts of the form and a description of the form itself but not a bit map of the entire form. Depending on the architecture of the system and the needs of the user, the original document may be processed at the reception site after only a small fraction of the document'"'"' contents has been transmitted. Transmission of bit mapped information is thus proportional only to the size and density of the bit map to be transmitted. Transmission of other types of information, e.g. checkboxes or ASCII coded data, is proportional to the number of such items, and not their size or density.

Claims

1. A method for transmitting a form from a transmitting device to a receiving device, which form has a generic part and a unique part, comprising the steps of:

a) storing a description of the generic part in a memory location within the receiving device;

b) encoding a pointer on the form, said pointer specifying the memory location within the receiving device in which the description of the generic part is stored;

c) scanning the form to detect the pointer and the unique part;

d) creating a digital encoding of the pointer and a bit map of the unique part;

e) transmitting the bit map and the digital encoding to the receiving device;

f) retrieving the description of the generic part from the storage location specified by the pointer; and

g) regenerating the form in the receiving device from the bit map and the description.

2. The method according to claim 1, further wherein said step of encoding further comprises encoding the form with shape encoded data.

3. The method according to claim 1, wherein said step of encoding further comprises encoding the form with bar codes.

4. The method according to claim 1, wherein said step of creating a digital encoding of the pointer comprises creating an ASCII coding of the pointer.

5. A method :

for transmitting a form from a transmitting device to a receiving device, which form has a generic part and a unique part, comprising the steps of;

a) storing a description of the generic part in a memory location within the transmitting device;

b) encoding a pointer on the form, said pointer specifying the memory location within the transmitting device in which the description of the generic part is stored;

c) scanning the form to detect the pointer and the unique part;

d) retrieving the description of the generic part from the storage location specified by the pointer;

e) creating a bit map of the unique and generic parts;

f) transmitting the bit map to the receiving device; and

g) regenerating the form in the receiving device from the bit;

map.

6. The method according to claim 5, wherein said step of encoding further comprises encoding the form with shape encoded data.

7. The method according to claim 5, wherein said step of encoding further comprises encoding the form with bar codes.

8. An apparatus for transmitting a form over a communications link, which form has a generic part, a unique part and a pointer, comprising:

a) a document processor scanning the form to detect the unique part and the pointer, wherein said document processor creates a bit map of the unique part and a digital encoding of the pointer;

b) a transmitter being coupled to the document processor, being coupled to the communications link and transmitting the bit map and the digital encoding over the communications link;

c) a receiver being coupled to the communications link and receiving the bit map and the digital encoding;

d) a storage storing a description of the generic part in a memory location specified by the pointer; and

e) a regenerating device being coupled to the receiver and to the storage, retrieving the description of the generic part from the memory location in the storage specified by the pointer and regenerating the form from the bit map and the description.

9. The apparatus according to claim 8, wherein said document processor and said transmitter comprise a facsimile device.

10. The apparatus according to claim 8, wherein said document processor further comprises a computer coupled to a display terminal.

11. An apparatus for transmitting a form over a communications link, which form has a generic part, a unique part and a pointer, comprising:

a) a storage storing a description of the generic part in a memory location specified by the pointer; and

b) a document processor being coupled to the storage and scanning the form to detect the unique part and the pointer, wherein said document processor retrieves the description of the generic part from the memory location specified by the pointer and creates a bit map of the unique part and generic parts;

c) a transmitter being coupled to the document processor, being coupled to the communication link and transmitting the bit map over the communications link;

c) a receiver being coupled to the communication link and receiving the bit map; and

e) a regenerating device being coupled to the receiver and regenerating the form from the bit map.

12. The apparatus according to claim 11, wherein said document processor and said transmitter comprise a facsimile device.

13. The apparatus according to claim 11, wherein said document processor further comprises a computer coupled to a display terminal.

14. The apparatus according to claim 11, wherein said regenerating device and said receiver comprise a facsimile device.