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:
Jul. 05, 1994
Filed:
Apr. 30, 1992
Michael J Krummey, Madison, WI (US);
Richard J Lee, Murrysville, PA (US);
James E Nesbitt, Pittsburgh, PA (US);
William H Powers, Jr, Pittsburgh, PA (US);
Alfred J Schwoeble, Monroeville, PA (US);
R. J. Lee Group, Inc., Monroeville, PA (US);
Abstract
A method of simultaneously recording a signal indicative of dynamic digital data, and signals comprising the analog voice and video picture data of a television signal is disclosed. The dynamic digital data is encoded into a signal at audio frequencies between a lower threshold frequency and an upper threshold frequency. The analog audio signal is filtered to remove frequencies between the lower threshold frequency and the upper threshold frequency. The encoded digital data signal and the filtered analog audio signal are combined into a single analog audio signal. The combined audio signal and the video signal are video recorded into a television signal.