Processor chips and server devices
The processor chip with a common phase-locking circuit and frequency changing circuits addresses the issue of power consumption in multi-core processors by allowing individual frequency adjustment, optimizing power usage and reducing circuit size.
JP2026096856APending Publication Date: 2026-06-15FUJITSU LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- FUJITSU LTD
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-15
AI Technical Summary
Technical Problem
In multi-core processors, CPU cores operating at the same frequency lead to increased power consumption, especially when some cores are idle, and providing multiple PLLs for individual frequency control increases circuit area.
Method used
A processor chip with a common phase-locking circuit and frequency changing circuits for each core, allowing individual frequency adjustment by clock decimation based on oscillation values set for each core.
Benefits of technology
Adjusts power consumption to match the operating state of each CPU core, reducing power usage without increasing circuit size, and enabling precise frequency control.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026096856000001_ABST
Abstract
In multi-core processors, power consumption is optimized to match the operating state of each CPU core. [Solution] The system includes a phase-locking circuit 13 that inputs a common oscillation value to each of the multiple processor cores 11, a first frequency change circuit 113 that performs a predetermined clock reduction from the common oscillation value in accordance with a first oscillation value set in the first processor core 11, and operates the first processor core 11 at the first oscillation value, and a second frequency change circuit 113 that performs a predetermined clock reduction from the common oscillation value in accordance with a second oscillation value set in the second processor core 11, and operates the second processor core 11 at the second oscillation value.
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