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:
Mar. 02, 1976
Filed:
Jan. 10, 1975
Charles B Crumly, Palo Alto, CA (US);
John P Lindley, Redwood City, CA (US);
Itek Corporation, Lexington, MA (US);
Abstract
A sweeping spectrum analyzer for analyzing the frequency and amplitude of an input signal is comprised of a Bragg cell with a laser beam input and an accoustic signal input. An input signal is mixed with a sweep signal to produce a heterodyned signal within the acoustic bandwidth of the Bragg cell. The heterodyned signal is applied to the Bragg cell and results in deflection of a laser beam passing therethrough. The Bragg cell output is imaged onto a charge coupled photodetector array and fed to a shift register as clock pulses. The clock pulses are synchronized with the sweep signal frequency for transfer as one charge packet down a charge coupled array.