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

• US 20040036700A1
• Filed: 08/18/2003
• Published: 02/26/2004
• Est. Priority Date: 08/20/2002
• Status: Active Grant

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Kashio, Yukio
• Granted Patent: US 7,009,650 B2
• Time in Patent Office: Days
• US Class Current: 345/660
• 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. A data communications device comprising:

a storage means for storing video by which data communications is performed;

a display means for displaying at least the video stored in said storage means; and

a display control means for controlling said display means to read out video stored in said storage means, to enlarge the video periphery, and to perform video playback in the display practicable area size of said display means.

2. The data communications device according to claim 1, further comprises an expansion judgment means for judging whether the video is enlarged or not by identifying expansion direction information appended to the video;

wherein when judged the expansion direction information is directing expansion by said expansion judgment means,

said display control means controls said display means to enlarge the video periphery and to perform video playback in the display practicable area size of said display means.

3. The data communications device according to claim 1, further comprises an expansion direction means for directing expansion of the video at the time of video playback,

wherein when said expansion direction means directs expansion of the video, said display control means controls said display means to enlarge the video periphery and to perform video playback in the display practicable area size of said display means.

4. The data communications device according to claim 3, wherein said display control means controls said display means to simply enlarge the video periphery and performs video playback.

5. The data communications device according to claim 3, wherein said display control means controls said display means to enlarge the scale factor ratio linearly from the center section extending to the periphery and to perform video playback.

6. The data communications device according to claim 3, wherein said display control means controls said display means to enlarge the scale factor ratio exponentially from the center section extending to the periphery and to perform video playback.

7. A data communications system comprising a data transmitting device and a data receiving device,

said data transmitting device further comprises:

a display means for displaying video;

a video storage means for storing video;

a first display control means for controlling said display means to read out video from said storage means, to enlarge the video periphery, and to perform video playback in the display practicable area size of said display means;

a transmitting means for performing wireless transmission of the video;

said data receiving device further comprises;

said display means for displaying video;

a receiving means for receiving video transmitted from said data transmitting device;

a storage means for storing the video received by said receiving means; and

a second display control means for controlling said display means to read out video from said storage means, to enlarge the video periphery, and to perform video playback in the display practicable area size of said display means.

8. The data communications system according to claim 7, said data transmitting device further comprises an image pick-up means for recording images;

said video storage means stores the images digitized by said image pick-up means.

9. An E-mail document display method with a video attachment comprising the steps of:

displaying video associated with an E-mail document at least on a display performed in a communications facility which performs data communications of said video byway of wireless signals;

reading out stored video in memory;

enlarging the video periphery; and

performing to said display video playback in a display practicable area size of said display.

10. The E-mail document display method with a video attachment according to claim 9, further comprising the steps of:

identifying expansion direction information appended to said video attachment;

enlarging said video attachment periphery where the expansion direction information is judged indicating expansion; and

performing to said display video playback in a display practicable area size of said display.

11. The E-mail document display method with a video attachment according to claim 9, wherein in cases when enlarging the video during playback is directed,

said enlarging step enlarges the video periphery, and

said performing step performs video playback in the display practicable area size of said display.

12. The E-mail document display method with a video attachment according to claim 9, wherein said E-mail document display method includes the steps of simply enlarging the video periphery and performing video playback.

13. The E-mail document display method with a video attachment according to claim 9, said E-mail document display method further includes the steps of enlarging the scale factor ratio linearly from the center section extending to the periphery and performing video playback.

14. The E-mail document display method with a video attachment according to claim 9, said E-mail document display method further includes the steps of enlarging the scale factor ratio exponentially from the center section extending to the periphery and performing video playback.

15. An E-mail document display program with a video attachment for displaying the video associated with an E-mail document at least on a display performed in a communications facility which performs data communications of said video with wireless signals;

said E-mail document display program with a video attachment includes a playback step;

said playback step for reading out the video attachment stored in memory, for enlarging the video periphery, and for performing video playback in the display practicable area size of said display.

16. The E-mail document display program with a video attachment according to claim 15, wherein said E-mail document display program further comprises an expansion judgment step;

said judgment step identifies expansion direction information appended to the video attachment and judges whether the video attachment is enlarged,

wherein when judged the expansion direction information is directing expansion by said expansion judgment step,

said playback step controls said display to enlarge the video periphery and to perform video playback in the display practicable area size of said display.

17. The E-mail document display program with a video attachment according to claim 15, further comprises an expansion direction step for directing expansion of the video at the time of video playback,

wherein when said direction step directs expansion of the video,

said playback step controls said display to enlarge the video periphery and to perform video playback in the display practicable area size of said display.

18. The E-mail document display program with a video attachment according to claim 15, wherein said playback step simply enlarges the video periphery and performs video playback.

19. The E-mail document display program with a video attachment according to claim 15, wherein said playback step enlarges the scale factor ratio linearly from the center section extending to the periphery and performs video playback.

20. The E-mail document display program with a video attachment according to claim 15, wherein said playback step enlarges the scale factor ratio exponentially from the video center section extending to the periphery and performs video playback.

21. A data communications device equipped with still picture display capabilities and video display capabilities comprises:

a display for displaying video and still pictures, in that the size (vertical×

horizontal;

V1×

H1) of the video is smaller (V1<

V2, H1<

H2) than the size (V2×

H2) of still pictures; and

an expansion means for enlarging the video to the display size (V2×

H2) of still pictures;

said expansion means further comprises an expansion control means,

said expansion control means divides one video screen into a center section (V3×

H3;

V3<

V1, H3<

H1) and its periphery, and enlarges only the periphery of the video screen.

22. The data communications device according to claim 21, wherein said expansion control means controls the scale factor ratio to enlarge magnification, so that V1 and H1 are approached to make the scale factor ratio small and so that V3 and H3 are approached to enlarge the scale factor ratio to match the video periphery section.

23. The data communications device according to claim 21, further comprises an E-mail transceiver capability;

said E-mail transceiver capability includes an E-mail control means,

said E-mail control means transmits said video attachment by E-mail.

24. A cellular phone with a digital camera comprising:

a memory for storing video received by E-mail attachment;

a display device for displaying still pictures and video; and

a display controller for controlling said display device to read out received video stored by said memory, to enlarge the video periphery, and to perform video playback in the still picture display practicable area size of said display device.

25. A cellular phone with a digital camera comprising:

a shutter;

a still picture image pick-up means for recording still pictures when said shutter is operated less than predetermined time;

a video image pick-up means for recording video when said shutter is operated more than predetermined time;

a storage means for storing said recorded still pictures or video;

an E-mail transceiver means for transmitting said still pictures or video stored in said storage means by E-mail attachment, and for receiving still pictures or video by E-mail attachment;

a still picture display means for displaying still pictures stored in said storage means; and

a video display means for displaying video stored in said storage means,

wherein said video display means enlarges the periphery of video and performs video playback in the display size of a still picture.

26. The data communications device comprising:

a receiving means for receiving still pictures and video;

an image pick-up means for recording still pictures and video;

a storage means for storing said still pictures and video recorded by said image pick-up means, or said still pictures or video received by said receiving means;

a display means for displaying still pictures or video stored in said storage means;

a video playback means for selecting video stored in said storage means, for enlarging the video periphery of said selected video and for performing continuous playback in the display size of said still picture;

a pause direction means for directing to suspend playback of the video; and

a display control means for controlling said display means to suspend playback of the video, to enlarge a still picture at that instant uniformly, and to display on said display means when there are pause directions from said pause direction means.