Sony patents tape measurement method using signal waveforms
Sony has filed a patent for a device that measures the width of magnetic tape patterns. Instead of using the highest and lowest points of the signal, it calculates the width using specific points on the waveform that are separate from the peaks.
In the filing’s own words
Provided is a servo measurement apparatus including: a servo read head that reads a servo pattern written to a servo band of a magnetic tape and reproduces a servo signal with a waveform; and a control unit that calculates a width of the servo pattern on the basis of a first point and a second point that are respectively different from a peak point on a positive side and a peak point on a negative side in the waveform of the servo signal.
What exactly they claim (claim 1)
1. A servo measurement apparatus, comprising: a servo read head that reads a servo pattern written to a servo band of a magnetic tape and reproduces a servo signal with a waveform; and a control unit that calculates a width of the servo pattern on a basis of a first point and a second point that are respectively different from a peak point on a positive side and a peak point on a negative side in the waveform of the servo signal.
Facts
- Company
- Sony (Sony Group Corporation)
- Official title
- SERVO MEASUREMENT APPARATUS, SERVO MEASUREMENT METHOD, PROGRAM, METHOD OF PRODUCING A MAGNETIC TAPE, AND MAGNETIC TAPE
- Publication number
- US20260331133A1
- Application number
- 19564878
- Filed
- Mar 12, 2026
- Published
- Oct 22, 2026
- Inventors
- 2
- Claims
- 20
Classified under
G11B 5/5928 Physics & computingMore from Sony in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.