×

Multiplying video mixer system

  • US 5,003,491 A
  • Filed: 03/10/1988
  • Issued: 03/26/1991
  • Est. Priority Date: 03/10/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. A multiplying video mixer system comprising:

  • a background signal generator for generating an input background signal for each of a plurality of pixels;

    a digital signal generator for generating a digital word corresponding to each of said plurality of pixels, each of said digital words including at least one overlay control bit for controlling an overlay image and at least one attribute control bit for controlling an opaque/transport attribute of said input background signal;

    means for converting said at least one overlay control bit into an analog overlay signal;

    means for applying said at least one attribute control bit to a corresponding input background signal for outputting an analog output background signal having the opaque/transparent attribute of said at least one attribute control bit; and

    means for multiplying said overlay signal and said output background signal to generate an output video signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×