Image communication apparatus with interactive operator display

• US 5,673,079 A
• Filed: 05/19/1994
• Issued: 09/30/1997
• Est. Priority Date: 05/29/1992
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Satoh, Makoto
• Primary Examiner(s): Burgess, Glenton B.
• Assistant Examiner(s): Miller, John W.
• Application Number:
  US08/245,852
• Time in Patent Office: 1,230 Days
• Field of Search: 348/15, 348/14, 348/17, 348/16, 348/18, 348/19, 348/13, 348/12, 348/10, 348/584, 348/588, 348/589, 348/578, 348/565, 348/566, 348/564, 348/581, 348/582, 348/580, 348/704, 348/705 , 348/706, 348/20
• US Class Current: 348/14.1
• CPC Class Codes: H04N 1/38 Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures H04N1/387 takes precedence
• CPC Class Codes: H04N 1/3875 combined with enlarging or reducing enlarging or reducing per se H04N1/393
• CPC Class Codes: H04N 7/141 between two video terminals, e.g. videophone telephonic communication systems combined with television receiver for reception of entertainment or information matter H04M11/085

Abstract

In the terminal A, the input image "ABC" is displayed in a window 200A, with a rectangular frame 206A indicating the area of transmission. The image in the transmission area is enlarged, and transmitted to the terminal B after compression. In the terminal B, the input image "efghij" is displayed in a window 200B, with a rectangular frame 206B indicating the area of transmission. The image in the transmission area is enlarged, and transmitted to the terminal A after compression. In the terminal A, the image in a selected area (display area) of the received image is displayed in a window 202A. Also a window 204A displays the position and size of the display area within the entire received image. The transmission area of the input image and the display area of the received image can be enlarged, reduced or displaced.

Claims

1. An image communication apparatus comprising:

input means for inputting an image signal;

setting means for setting a desired area from the image signal;

extraction means for extracting the desired area set by said setting means, from the input image signal;

transmission means for transmitting the extracted image signal;

first display means for displaying a relative position between the image signal and the desired area; and

second display means for displaying the extracted image signal,

wherein the image signal displayed on said second display means changes according to a change of the desired area.

2. An image communication apparatus according to claim 1, further comprising:

reproduction means for reproducing the image signal, inputted by said input means, as a visible image.

3. An image communication apparatus according to claim 1, wherein the image signal is a color image signal.

4. An image communication apparatus according to claim 1, wherein said input means is a video camera.

5. An image communication apparatus according to claim 1, wherein said first display means is adapted for providing graphic display of the area set by said setting means.

6. An image communication apparatus according to claim 1, further comprising:

reception means for receiving an image signal from the outside through a communication channel.

7. An image communication apparatus according to claim 6, further comprising:

display means for displaying an area of an image represented by the image signal received by said reception means.

8. An image communication method comprising the steps of:

inputting an image signal;

setting a desired area from the image signal;

extracting the desired area from the image signal;

transmitting the extracted image signal;

displaying a relative position between the image signal and the desired area; and

displaying the extracted image signal,

wherein the extracted image signal displayed changes according to a change of the desired area.

9. An image communication apparatus comprising:

reception means for receiving an image signal from the outside;

setting means for setting an area in the image signal received by said reception means;

first display means for displaying which area is the area set by said setting means in an image represented by the image signal; and

second display means for displaying the received image signal,

wherein the image signal displayed on said second display means changes according to a change of the area set by said setting means.

10. An image communication apparatus according to claim 9, wherein the image signal is a color image signal.

11. An image communication apparatus according to claim 9, wherein said display means is adapted to effect graphic display of the area.

12. An image communication apparatus according to claim 9, further comprising:

instruction means for instructing a variation of the area.

13. An image communication method comprising the steps of:

receiving an image signal from the outside;

setting an area in the received image signal;

displaying which area is the area set, in an image represented by the received image signal; and

displaying the received image signal,

wherein the received image signal displayed changes according to a change of the area set in said setting step.