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. 17, 2024
Filed:
Oct. 27, 2023
Avago Technologies International Sales Pte. Limited, Singapore, SG;
Scott O'Brien, Eden Prairie, MN (US);
Gregory W. Starr, Boulder, CO (US);
Avago Technologies International Sales Pte. Limited, Singapore, SG;
Abstract
A solution can detect an HDD laser mode hop within an improved response time using a sensor amplification circuitry balanced by a frequency response of a gain stage circuit. A sensor of a first circuit can receive an optical signal of a laser as input and output a first voltage that an amplifier can amplify to produce an amplified first voltage indicative of a mode hop event trailing the optical signal by a first response time of a first frequency response. A second circuit coupled in series with the first circuit and operating according to a second frequency response an inverse of the first frequency response can receive the amplified first voltage and generate, based at least on the amplified first voltage adjusted by the second frequency response, a second voltage indicative of the mode hop event within a second response time that is shorter than the first response time.