Data communications device, data communications system, document display method with video and document display program with video

• US 7,508,386 B2
• Filed: 07/13/2005
• Issued: 03/24/2009
• Est. Priority Date: 08/20/2002
• Status: Active Grant

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Kashio, Yukio
• Primary Examiner(s): Patel; Nitin
• Application Number:
  US11/179,554
• Publication Number:
  US 20060001756A1
• Time in Patent Office: 1,350 Days
• Field of Search: 345 87-100, 345/204, 345690-698, 345660-666, 345 31- 34, 345667-671, 348/207, 348/586, 348/596, 348/441, 455/412.1, 455/556
• US Class Current: 345/204
• CPC Class Codes: G06T 3/40 Scaling of whole images or parts thereof, e.g. expanding or contracting
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: H04M 1/72439 for image or video messaging

Abstract

In cases when cellular phone 1a plays back a 96×80 pixel video while creating an E-mail with a video attachment or receiving an E-mail with a video attachment, the data communications device enlarges the video periphery and performs playback in 128×96 pixels. Even though the expansion method employed simply enlarges the video periphery, enlarges the scale factor ratio linearly from the center section extending to the periphery and enlarges the scale factor ratio exponentially from the video center section extending to the periphery, a reduction in video visibility by expansion is prevented as the center section is set to 1× (one fold). Consequently, in video playback the common problem of decreased visibility from image deterioration does not occur, resulting in the display area being utilized effectively with enhanced visual effects and image quality.

Claims

1. An E-mail document display method with a video file attached to perform a process comprising the steps of:

reading out a video file attached to an E-mail document;

decoding said read out video file to acquire a video;

sectionalizing a screen for said video into a center section and a periphery section, and enlarging said periphery section only; and

displaying an enlarged video in said periphery section only throughout an image display practicable area.

2. The E-mail document display method according to claim 1, further comprising the steps of:

reading out a still picture file whenever a still picture file is attached to said E-mail document;

decoding said read out still picture file to acquire a still picture; and

displaying said still picture throughout said image display practicable area.

3. The E-mail document display method according to claim 1, wherein said video file is encoded with a MPEG system;

wherein said step of enlarging is executed in conjunction with said step of decoding; and

wherein the partial enlargement step for enlarging said periphery section only is interpolated by embedding data of an observed pixel in an adjacent pixel.

4. An E-mail document display method with a video file attached to perform a process comprising the steps of:

reading out a video file attached to an E-mail document;

decoding said read out video file to acquire a video;

enlarging a periphery section of a screen for said video display exponentially extended from a center section to said periphery section; and

displaying a video exponentially enlarged in said periphery section throughout an image display practicable area.

5. The E-mail document display method according to claim 4, further comprising the steps of:

reading out a still picture file whenever a still picture file is attached to said E-mail document;

decoding said read out still picture file to acquire a still picture; and

displaying said still picture throughout said image display practicable area.

6. The E-mail document display method according to claim 4, wherein said video file is encoded with a MPEG system;

wherein said step of enlarging is executed in conjunction with said step of decoding; and

wherein the partial enlargement step for enlarging said periphery section only is interpolated by embedding data of an observed pixel in an adjacent pixel.

7. An E-mail document display system, comprising:

a means for reading out an image file attached to an E-mail document;

a means for decoding said image file to acquire a video whenever said read out image file is a video file;

a means for sectionalizing a screen for said video display into a center section and a periphery section, and enlarging said periphery section only;

a means for displaying an enlarged video in said periphery section only throughout an image display practicable area;

a means for decoding said image file to acquire a still picture whenever said read out image file is a still picture file; and

a means for displaying said still picture throughout said image display practicable area.

8. An E-mail document display system, comprising:

a means for reading out an image file attached to an E-mail document;

a means for decoding said image file to acquire a still picture whenever said read out image file is a still picture file;

a means for displaying said still picture throughout said image display practicable area;

a means for decoding said image file to acquire a video whenever said read out image file is a video file; and

a means for enlarging said video exponentially extended from a center section smaller than an image display practicable area to a periphery section and displaying said video throughout said image display practicable area.

9. An E-mail document display device, comprising:

a read out section for reading out an image file attached to an E-mail document;

a video decoder for sectionalizing a screen for video display into a center section and a periphery section, and enlarging said periphery section only, whenever said read out image file is a video file, during the process of decoding said image file to acquire a video;

a still picture decoder for decoding said image file to acquire a still picture whenever said read out image file is a still picture file; and

a main display for displaying said video enlarged in said periphery section only or said still picture throughout an image display practicable area.

10. The E-mail document display device according to claim 9, further comprising:

an image pick-up section; and

said image file is an image file recorded by said image pick-up section.

11. The E-mail document display device according to claim 9, further comprising:

a receiving section; and

said image file is an image file received by said receiving section.

12. The E-mail document display device according to claim 9, wherein the size of said image display practicable area of said main display is V2×

H2;

wherein the display size of said video is V1×

H1 (V1<

V2, H1<

H2);

wherein the display size of said still picture is V2×

H2; and

wherein the display size of said enlarged video is V2×

H2.

13. An E-mail document display device, comprising:

a main display section having an image display practicable area;

a read out section for reading out an image file attached to an E-mail document;

a decoding section for decoding said image file to acquire a still picture whenever said read out image file is a still picture file;

a display section for displaying said still picture throughout said image display practicable area of said main display section;

a decoding section for decoding said image file to acquire a video whenever said read out image file is a video file; and

an enlargement section for enlarging said video exponentially extended from a center section smaller than said image display practicable area to a periphery section and displaying said video throughout said image display practicable area of said main display section.

14. The E-mail document display device according to claim 13, further comprising:

an image pick-up section; and

said image file is an image file recorded by said image pick-up section.

15. The E-mail document display device according to claim 13, further comprising:

a receiving section; and

said image file is an image file received by said receiving section.

16. The E-mail document display device according to claim 13, wherein the size of said image display practicable area of said main display is V2×

H2;

wherein the display size of said video is V1×

H1 (V1<

V2, H1<

H2);

wherein the display size of said still picture is V2×

H2; and

wherein the display size of said enlarged video is V2×

H2.