Data formatting system for processing multiple independent input data streams for high resolution screen displays

• US 5,754,242 A
• Filed: 05/03/1996
• Issued: 05/19/1998
• Est. Priority Date: 01/06/1995
• Status: Expired due to Term

• Current Assignee: Binary Services LLC (Intellectual Ventures LLC)
• Original Assignee: Mitsubishi Electric Information Technology Center America, Inc. (Mitsubishi Electric Corporation)
• Inventors: Ohkami, Takahide
• Primary Examiner(s): Powell, Mark R.
• Application Number:
  US08/643,265
• Time in Patent Office: 746 Days
• Field of Search: 345/112, 345/116, 345/118-120, 345/202, 345/126-127, 345/132-133, 345/121, 348/554, 348/555, 348/556, 348/558, 348/588, 348/441
• US Class Current: 348/441
• CPC Class Codes: H04N 19/85 using pre-processing or post-processing specially adapted for video compression

Abstract

A system is provided to enhance the capability of a display system which format digital images of different types from multiple input data streams for a high-resolution screen of arbitrary shape and size, with the display system adapted to receive independent data streams from different data sources at the same time and control how and where the images from the data streams are presented on the screen in a type-independent manner. The screen layout is controlled by an active screen format that specifies which data streams are to be received, where on the screen to present the images and how to present the images. Type-independent data formatting is accomplished by choosing the preprocessing handler/transformation handler pair suitable for the type of a data stream and activating the handlers so that they restore images from the data stream and transform them to fit on the preallocated portion of the screen on the fly. In one embodiment, the data stream manager dynamically creates a data stream server for each data stream to maintain data structures for management and preprocess data, and, with the knowledge of the shape and size of the screen, the screen format manager allocates a screen area and creates a screen format server for each data stream to generate images from the data preprocessed by the data stream server by performing the specified transformation on them to fit on the preallocated screen portion.

Claims

1. In a display system having as an input different incoming data streams including video, graphical object, and still image data, apparatus for automatically detecting data type and formatting incoming data so as to permit displaying of said data in a changeable format, comprising:

a number of incoming data streams;

a display screen;

means for rendering images corresponding to the data carried by said incoming data streams on said display screen;

a number of data stream handlers interposed between said incoming data streams and said rendering means, each of said handlers having a predetermined preprocessing algorithm for establishing the format of the data to be output by a handler; and

,

means for detecting the data type of an incoming data stream and for changing the format of the corresponding data handler to output data formatted in accordance with both the position and area on said screen said data is to occupy and the detected data type, whereby incoming data is reformatted in accordance with active screen requirements for the display of said data, such that said data is rendered at the appropriate place on the screen with the appropriate characteristics.

2. The system of claim 1, wherein specifying means includes means operable by a user for designating said format.

3. The system of claim 1, wherein one of said data streams includes video images, and wherein said preprocessing means includes means for converting one of the characteristics of said video images into a different characteristic.

4. The system of claim 1, wherein one of said data streams includes compressed video images, and wherein said preprocessing means includes means for decompressing said compressed video images.

5. The system of claim 1, wherein one of said data streams includes graphical object descriptions, and wherein said preprocessing means includes means for generating a graphical object in accordance with a corresponding one of said graphical object descriptions.

6. The system of claim 1, wherein one of said data streams includes a still image, and wherein said preprocessing means includes means for converting the pixel representation of said still image into a different representation.

7. The system of claim 6, wherein said different representation is selected from the group consisting of color, shading, brightness, and resolution.

8. The system of claim 1, wherein one of said data streams includes a command script, and wherein said preprocessing means includes means for generating images from said command script.

9. The system of claim 1, wherein one of said data streams includes text, and wherein said preprocessing means includes means for generating a predetermined font for said text.

10. The system of claim 1, wherein said transforming means includes means for resizing said preprocessed pixel images.

11. The system of claim 1, wherein said transforming means includes means for rotation of said preprocessed pixel images.

12. The system of claim 1, wherein said transforming means includes means for processing said preprocessed pixel images in accordance with a predetermined algorithm.

13. The system of claim 1, and further including means coupled to said transforming means for specifying the layout of said preprocessed pixel images on said screen.

14. The system of claim 1, wherein said preprocessing means includes a data stream server and a data stream manager coupled thereto.

15. The system of claim 1, wherein said transforming means includes a screen format server and a screen format manager coupled thereto.

16. The system of claim 1, wherein said preprocessing means includes a data stream server and a data stream manager coupled thereto, wherein said transforming means includes a screen format server and a screen format manager coupled thereto, and further including means for coupling said data stream manager to said screen format manager.

17. The system of claim 16, wherein said format specifying means includes means for directly specifying said format and a console coupled between said direct format specifying means and both said data stream manager and said screen format manager for providing corresponding control signals thereto.