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:
May. 18, 1976
Filed:
Mar. 18, 1974
William L Chapman, Ponca City, OK (US);
Continental Oil Company, Ponca City, OK (US);
Abstract
Apparatus for interconnection of seismic receivers using a two-wire connection and utilizing frequency diversification to maintain separation of received energy from each of the individual seismic receivers. Each seismic receiver is used in combination with a local oscillator having an individually distinctive frequency for modulated output and transmission via a two-wire conductor to a remote or centralized seismic signal processing or recording station. A module receiving each seismic receiver output provides gain controlled amplification prior to modulation of the output on a transmission carrier having a selected frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile