Method of displaying the same information on a plurality of image display apparatuses

• US 5,574,574 A
• Filed: 05/09/1995
• Issued: 11/12/1996
• Est. Priority Date: 07/11/1991
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Kawamura, Koichi
• Primary Examiner(s): IP, SHIK LUEN PAUL
• Application Number:
  US08/437,633
• Time in Patent Office: 553 Days
• Field of Search: 358/468, 358/257, 358/263, 358/402, 358/438, 358/452, 359/135, 359/124, 359/152, 359/154, 359/174, 370/4, 370/29, 370/80, 370/94, 370/85, 370/12, 370/85.6, 370/85.7, 370/85.15, 370/103, 455/612, 455/608, 455/606, 455/619, 455/601, 455/602, 379/94, 379/91, 379/96, 379/100, 379/102, 379/211, 380/2, 380/48, 380/20, 375/36, 375/121
• US Class Current: 358/468
• CPC Class Codes: H04N 1/00127 Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
• CPC Class Codes: H04N 1/00129 with a display device, e.g. CRT or LCD monitor with a television apparatus H04N1/00283; arrangements for control of display devices G09G
• CPC Class Codes: H04N 1/32363 at the transmitter or at the receiver
• CPC Class Codes: H04N 1/32379 Functions of a still picture terminal memory associated with reception
• CPC Class Codes: H04N 1/32486 Storage for making a plurality of copies or reproductions
• CPC Class Codes: H04N 2201/0049 By wire, cable or the like
• CPC Class Codes: H04N 2201/0053 Optical, e.g. using an infrared link
• CPC Class Codes: H04N 2201/3288 Storage of two or more complete document pages or image frames

Abstract

In a method of displaying the same information on a plurality of display apparatuses, a first display apparatus provided with a facsimile reception function is connected to a second display apparatus using a line different from a telephone line for facsimile reception. Received information is displayed on the first display apparatus and is transmitted to the second display apparatus via the different line. The same information as the received information is displayed on the second display apparatus substantially simultaneously with the first display apparatus.

Claims

1. A method of displaying the same information on a plurality of display apparatuses, said method comprising the steps of:

connecting a first display apparatus, which is provided with a facsimile communication function, to a second display apparatus not provided with a facsimile communication function and using a line of a type different from a communication line for facsimile reception;

receiving, by said first display apparatus, information via a communication line for facsimile reception;

displaying on said first display apparatus the information received in said receiving step;

automatically transmitting said received information to said second display apparatus from said first display apparatus via said different-type line; and

displaying the same information as the information displayed in the displaying step on said second display apparatus substantially simultaneously with the display on said first display apparatus.

2. A method according to claim 1, wherein said different line comprises an optical cable.

3. A method according to claim 1, wherein said second display apparatus transmits information transmitted from said first display apparatus to a third display apparatus via another line of the same type as said different line.

4. A method of displaying the same information on a plurality of display apparatuses, said method comprising the steps of:

receiving, by a first display apparatus provided with a facsimile communication function, information including modulated image information;

demodulating said modulated image information to provide demodulated image information;

displaying said demodulated image information on said first display apparatus;

converting said demodulated image information into an optical signal in synchronization with the display of the image information on said first display apparatus;

automatically transmitting said optical signal to a second display apparatus not provided with a facsimile communication function in a non-facsimile communication;

converting said optical signal transmitted in the transmitting step into an electrical signal; and

displaying the demodulated image information on said second display apparatus in accordance with said electric signal converted in the second converting step.

5. A method according to claim 4, wherein said first display apparatus transmits said optical signal to said second display apparatus via an optical cable.

6. A method according to claim 4, further comprising the step of transmitting the optical signal transmitted to said second display apparatus to a third display apparatus.

7. A method according to claim 4, wherein, in each of said displaying steps, an image is formed on a recording medium, and the image formed on the recording medium is displayed on a display unit.

8. A display method in a plurality of display apparatuses, said method comprising the steps of:

receiving, by facsimile communication, image information and identifying information for identifying on which of said plurality of display apparatuses said image information is to be displayed by a first display apparatus provided with a facsimile communication function;

judging whether the received image information is to be displayed on said first display apparatus or not on the basis of the received identifying information;

displaying the received image information on said first display apparatus if a result of judging is to display the received image information and

converting the received image information and identifying information into an optical signal and transmitting the optical signal to a second display apparatus without displaying the received image information on said first displaying apparatus if the result of judging is not to display the received image information.