Split screen imaging

• US 4,872,001 A
• Filed: 01/15/1988
• Issued: 10/03/1989
• Est. Priority Date: 05/25/1984
• Status: Expired due to Fees

• Current Assignee: Elscint Limited (Elbit Imaging Limited)
• Original Assignee: Elscint Limited (Elbit Imaging Limited)
• Inventors: Netter, Zvi
• Primary Examiner(s): Moore, David K.
• Assistant Examiner(s): Brier, Jeffery A.
• Application Number:
  US07/145,703
• Time in Patent Office: 627 Days
• Field of Search: 340/721, 340/723, 340/724, 340/731, 340/734, 364/521
• US Class Current: 715/781
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: H04N 1/3875 combined with enlarging or reducing enlarging or reducing per se H04N1/393

Abstract

A split screen imaging display system including interactive controls operating on random access memories for designating subdisplay images on a split screen basis. The interactive controls in conjunction with random access memories individually control each of the split screen subdisplay images with an independant set of parameters which are variable even during the imaging process.

Claims

1. A split screen image display system capable of displaying a plurality of sub-display images each having different locations, shapes, sizes and processing parameters, said split screen image display system comprising:

image display means,

display memory means containing imaging data, said display memory means having a number of memory locations substantially equal to the number of pixels of said image display means,

processing means for processing said imaging data obtained directly from said display memory means to generate images on said image display means from said imaging data,

readout means for reading out said display memory means to provide said imaging data directly to said processing means,

a first random access memory (RAM) means providing instructions for determining the location of said imaging data in each of said sub-display images on said image display means,

a second RAM means for providing instructions specifying the location in the memory means of the data being read out and for providing instructions specifying processes to be utilized by the processing means to determine the size and shapes of each of the sub-display images, and

external interactive means for inputting said location and processing information into said first and second RAM means to designate desired split screen sub-display images.

2. The split screen image display means of claim 1 wherein said first RAM means comprises a first RAM programmed to provide a display map, said first RAM means operated responsive to the inputted location information for controlling the location of each of the sub-display images of information in said display memory means located under the control of information from said second RAM means, and said second RAM means providing operating parameters to determine processes to be utilized by said processing means responsive to said inputted information.

3. The system of claim 2 wherein said processing means operates responsive to said instruction from said second RAM means to process amplitude values stored in said display memory means prior to inserting said processed values onto locations determined by said first RAM means.