Adjustable bandwidth current-to-voltage converter that operates in a dynamic load mode or in an integrate-and-dump mode for use in an optical receiver
US-2025247156-A1 · Jul 31, 2025 · US
Optical receiver
US12567908B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12567908-B2 |
| Application number | US-202318459486-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 1, 2023 |
| Priority date | Sep 29, 2022 |
| Publication date | Mar 3, 2026 |
| Grant date | Mar 3, 2026 |
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- Title
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Abstract
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An optical receiver includes a converter that converts an optical signal into an electrical data signal, a controller that changes an adjustment value of peaking based on a baud rate of the optical signal, and an amplifier that changes a band characteristic of the converter based on the adjustment value changed by the controller.
First claim
Opening claim text (preview).
What is claimed is: 1 . An optical receiver comprising: a converter that converts an optical signal into an electrical data signal; a controller that changes an adjustment value of peaking based on a baud rate of the optical signal; and an amplifier that changes a band characteristic of the converter based on the adjustment value changed by the controller. 2 . The optical receiver according to claim 1 , wherein the peaking is a characteristic that amplifies an amplitude component in the band characteristic of the converter. 3 . The optical receiver according to claim 1 , wherein the amplifier adjusts the peaking based on the adjustment value to change the band characteristic of the converter. 4 . The optical receiver according to claim 1 , wherein the controller includes a memory that stores a table defining a correspondence relationship between the baud rate and the adjustment value, and determines the adjustment value according to the baud rate based on the table. 5 . The optical receiver according to claim 4 , wherein the correspondence relationship is a relationship in which the adjustment value decreases in response to a decrease in the baud rate. 6 . The optical receiver according to claim 1 , wherein the controller stores mathematical formula information defining the correspondence relationship between the baud rate and the adjustment value, and calculates the adjustment value according to the baud rate based on the mathematical formula information. 7 . The optical receiver according to claim 6 , wherein the correspondence relationship is a relationship in which the adjustment value decreases in response to a decrease in the baud rate.
Assignees
Inventors
Classifications
Bandwidth control of bit rate adaptation · CPC title
- H04B10/60Primary
Receivers · CPC title
- H04B10/6931Primary
Automatic gain control of the preamplifier · CPC title
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Frequently asked questions
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- What does patent US12567908B2 cover?
- An optical receiver includes a converter that converts an optical signal into an electrical data signal, a controller that changes an adjustment value of peaking based on a baud rate of the optical signal, and an amplifier that changes a band characteristic of the converter based on the adjustment value changed by the controller.
- Who is the assignee on this patent?
- Fujitsu Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B10/60. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).