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. 04, 1978
Filed:
Sep. 22, 1976
Edward W Finlay, Agincourt, CA;
John Cappon, Willowdale, CA;
Premier Cablevision Ltd., Vancouver, CA;
Abstract
In an electrical multi-channel signal transmission system having channels with signal carriers of predetermined frequencies, each frequency is an integral multiple of a constant which is a measure of frequency spacing between channels with the addition or subtraction of an integral multiple of one or more other constants. The integral multiples of the one or more other constants are selected to cause the frequencies of significant intermodulation products produced by simultaneous treatment of carriers by electrical components, such as amplifiers, to be equal to other carrier frequencies. The frequencies are obtained from a plurality of oscillators with frequencies related to the constants. The invention is especially useful with cable television systems transmitting programs on low, mid and high band channels.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile