The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1977
Filed:
Nov. 10, 1975
Robert E Miller, Ellicott City, MD (US);
The Johns Hopkins University, Baltimore, MD (US);
Abstract
A recording/reproducing system for radar and similar type data is provided wherein all data necessary to record and later reproduce an accurate data (radar) display is formatted on a single recording track; e.g., on magnetic tape, in the form of a single composite signal. In one embodiment, the composite signal contains radar video and trigger markers and is chopped by a multi-bit, bi-phase data signal containing word synchronization sequence, trigger identification, radar coordinate information, and any other pertinent data, as desired. In a second embodiment, the radar video and trigger markers frequency modulate one carrier signal, which is then combined with a second carrier which has been frequency modulated with data (i.e., word synchronization, trigger identification, coordinate information, etc.) to form the composite signal. The reproduce portion of the proposed system then decodes or demodulates the composite signal in order to recover the component signals and convert them back to the proper radar video, triggers and bearing format for display.