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:
Dec. 19, 1978
Filed:
Oct. 21, 1977
John M Vandling, Pleasantville, NY (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
Abstract
A frequency modulated facsimile signal is synthesized from a high frequency signal having a frequency which varies in response to dark/light variations on a document. The higher frequency signal which comprises pulses is coupled to a synthesizing network which includes a digital-to-analog converter for producing synthesized frequency modulated facsimile signals. Enabling circuitry is associated with the digital-to-analog converter which assures that the frequency modulated facsimile signal will not terminate or begin except at axis crossing times.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile