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SamsungGranted patentChips & hardwareInterest 3/10

Samsung patents circuit to fine-tune oscillator frequency response

This patent describes a method for controlling how an oscillator generates a signal by adjusting the current that drives it. The system uses a calibration circuit to tweak the strength and phase of the current based on the input signal, ensuring the output frequency stays stable and accurate.

Why it mattersThis is a routine hardware improvement that helps electronic components maintain precise timing, which is essential for reliable performance in devices like phones and computers.

In the filing’s own words

A method may include generating, using an oscillator, a first signal having a frequency based on a current, generating, based on a second signal, a first portion of the current, the first portion of the current having a first frequency characteristic, and generating, based on the second signal, a second portion of the current, the second portion of the current having a second frequency characteristic. A gain of the first frequency characteristic may change based on a frequency of the second signal. The first frequency characteristic may include a first gain at a first frequency, and a second gain at a second frequency. The first gain may be greater than the second gain, and the second frequency may be greater than the first frequency. A phase of the first frequency characteristic may change based on a frequency of the second signal.

What exactly they claim (claim 1)

1. A method comprising: generating, using an oscillator, a first signal having a frequency based on a current; generating, based on a second signal, a first portion of the current, the first portion of the current having a first frequency characteristic; and generating, based on the second signal, a second portion of the current, the second portion of the current having a second frequency characteristic; and controlling, using a calibration input circuit, a magnitude of at least one of the first portion of the current or the second portion of the current, wherein the calibration input circuit includes a differential circuit.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Systems, methods, and apparatus for controlling oscillator frequency response
Patent number
US12744536B2
Application number
18764126
Filed
Jul 3, 2024
Granted
Sep 22, 2026
Inventors
3
Claims
16

Classified under

H03L 7/099 Electricity & electronicsH03K 3/0315 Electricity & electronicsH03L 7/093 Electricity & electronicsH03L 7/0995 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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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.