Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Tracking error signal detecting method selectively using a push-pull method, an improved push-pull method, and a three beam method and optical recording/reproducing apparatus using the same

Tracking error signal detecting method selectively using a push-pull method, an improved push-pull method, and a three beam method and optical recording/reproducing apparatus using the same

US Patent 7283440 · Granted Oct 16, 2007

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Clustering method and system for detecting abnormal transaction in e-commerce2025
Electronic device and method for detecting malicious server2024
Method and apparatus for generating tactile sensation2020
Method and apparatus for generating haptic signal with auditory saliency estimat2017
Compatible optical pickup and optical recording and/or reproducing apparatus emp2013
Method of accessing optical recording media, optical pickup device, and optical 2013
Optical pickup, photodetector, and drive adopting the optical pickup2013
Optical recording and/or reproducing apparatus having a high-sensitivity magneti2011
Optical pickup apparatus and optical recording/reproducing system using the same2010
Front photo detector having no gain selection switch, optical pick-up including 2009
Magnetic circuit, optical pickup actuator, optical recording and/or reproducing 2009
Method and apparatus compensating for tilt2009