Method and apparatus for email relay of moving image conversion and transmission, and programs therefor
First Claim
1. An email relay method for sending an email attached with a moving image to a terminal as a destination of the email, the email relay method comprising the steps of:
- judging a model of a recipient terminal based on a destination email address included in a header of the email to determine a recipient terminal type, with at least one associated media file format corresponding to the recipient terminal type;
determining the recipient terminal is capable of displaying a moving image and sending the moving image to the recipient terminal when the recipient terminal type is capable of displaying a moving image based upon the recipient terminal type and the at least one associated media file format;
determining the recipient terminal type is capable of displaying a multimedia image when the recipient terminal type is not capable of displaying a moving image;
converting the moving image into a multimedia image when the recipient terminal type is not capable of moving image display and associates the conversion of the moving image with a media file format corresponding to the recipient terminal type for multimedia image display, whereby the email relay sends the multimedia image instead of the moving image to the recipient terminal;
determining the recipient terminal type is capable of displaying a reduced-color image when the recipient terminal type is not capable of displaying a moving image and a multimedia image; and
converting the moving image into a reduced-color moving image when the recipient terminal type is not capable of a moving image display and is not capable of a multimedia image display, but is capable of a reduced-color moving image display and associates the conversion of the moving image with a media file format corresponding to the recipient terminal type for a multimedia image display, whereby the email relay sends the reduced-color moving image to the recipient terminal,wherein converting the moving image into a multimedia image includes;
sampling frames from the moving image;
enlarging or reducing the frames according to the characteristic of the display device;
compressing the frames by the compression method considering two-dimensional redundancy so that a data size of the multimedia image can be dealt with by the display device; and
generating the multimedia image by compiling the frames compressed by the by the compression method, andwherein compressing the frames further comprises;
repeating the changing of a compression ratio of the frames and/or thinning of the frames until the data size of the multimedia image becomes the data size that can be dealt with by the display device when the data size of the multimedia image is larger than the data size that can be dealt with by the display device.
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Accused Products
Abstract
Even if an email attached with a moving image is sent to a terminal that is not capable of moving image display, pseudo moving image display can be carried out in high quality on the terminal. An email reception unit receives the email, and a model judgment unit judges the model of the terminal as a destination of the email. If the destination terminal cannot display the moving image, a moving image conversion unit generates a multimedia image data in a multimedia format from moving image data representing the moving image. An image attaching unit attaches the moving mage data or the multimedia image data to main content of the email, and an email transmission unit sends the image-attached email to the destination terminal.
27 Citations
4 Claims
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1. An email relay method for sending an email attached with a moving image to a terminal as a destination of the email, the email relay method comprising the steps of:
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judging a model of a recipient terminal based on a destination email address included in a header of the email to determine a recipient terminal type, with at least one associated media file format corresponding to the recipient terminal type; determining the recipient terminal is capable of displaying a moving image and sending the moving image to the recipient terminal when the recipient terminal type is capable of displaying a moving image based upon the recipient terminal type and the at least one associated media file format; determining the recipient terminal type is capable of displaying a multimedia image when the recipient terminal type is not capable of displaying a moving image; converting the moving image into a multimedia image when the recipient terminal type is not capable of moving image display and associates the conversion of the moving image with a media file format corresponding to the recipient terminal type for multimedia image display, whereby the email relay sends the multimedia image instead of the moving image to the recipient terminal; determining the recipient terminal type is capable of displaying a reduced-color image when the recipient terminal type is not capable of displaying a moving image and a multimedia image; and converting the moving image into a reduced-color moving image when the recipient terminal type is not capable of a moving image display and is not capable of a multimedia image display, but is capable of a reduced-color moving image display and associates the conversion of the moving image with a media file format corresponding to the recipient terminal type for a multimedia image display, whereby the email relay sends the reduced-color moving image to the recipient terminal, wherein converting the moving image into a multimedia image includes; sampling frames from the moving image; enlarging or reducing the frames according to the characteristic of the display device; compressing the frames by the compression method considering two-dimensional redundancy so that a data size of the multimedia image can be dealt with by the display device; and generating the multimedia image by compiling the frames compressed by the by the compression method, and wherein compressing the frames further comprises; repeating the changing of a compression ratio of the frames and/or thinning of the frames until the data size of the multimedia image becomes the data size that can be dealt with by the display device when the data size of the multimedia image is larger than the data size that can be dealt with by the display device. - View Dependent Claims (2, 3, 4)
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Specification