Browse Prior Art Database

Zooming bitmaps. Disclosure Number: IPCOM000013818D
Original Publication Date: 2001-Apr-12
Included in the Prior Art Database: 2003-Jun-18
Document File: 4 page(s) / 516K

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The Zoom Function

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Zooming bitmaps.

The Zoom Function

This document discloses a function that enables users to increase the size of individual graphics displayed on a Web page without decreasing the graphic's resolution and, thereby, making the graphic easier to read, and without dramatically increasing the time to load the Web page. This function, called Zoom, is provided to users of IBM Web Lecture Services while viewing online lectures. A button located below graphics in Web lectures activates the Zoom function that fetches a larger version of the graphic from the Web server. Figure 1 shows the button and its effect on the size of a graphic.


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Figure 1. Before (above) and after (below)using the Zoom control.


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The Zoom function benefits a large number of users and developers, including-

Users who access the Internet by means of an analog modem at the relatively slow connection speeds of between 28.8 Kb and 56 Kb.

Web developers who want their Web pages to load faster.

To provide Web users reasonable performance at slow connection speeds, developers often decrease the file size of graphics by either reducing its viewable size, reducing the number of colors in contains, or changing its file format. The result is that some of the graphic's details are lost. Web sites that provide the Zoom function, however, enable developers to use higher resolution graphics in smaller file-size formats.


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Users of Web hosting services who pay for...