DRAM Module LED Control via Independent Controller
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Solution Overview
Problem
Conventional light-emitting devices for DRAM modules can only provide limited flickering modes and monotonous lighting effects, which do not meet consumer demands, and this is achieved at the cost of reducing the efficiency of the DRAM controller's access to memory dies due to multiplexing control methods.
Innovation Solution
A light-emitting device comprising a memory module board, a light-emitting board with independent control units and light-emitting units, and an application program unit that generates control signals to manage lighting modes, allowing for diverse lighting effects without affecting the DRAM controller's efficiency by directly transmitting control signals through a cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the DRAM controller controls the flickering mode of LED in a multiplexing manner, then the LED can emit light beam to appeal to consumers, but the efficiency of the controller to access the dies of the DRAM is adversely affected
Solution Approach 1:
The patent divides the control function into two independent parts: the DRAM controller focuses on memory access while a separate LED controller handles lighting control. This segmentation allows each controller to specialize in its function without interfering with the other, resolving the conflict between lighting versatility and access efficiency
Solution Approach 2:
The LED control function is extracted from the DRAM controller and implemented as a separate controller unit. This extraction eliminates the multiplexing overhead and allows the DRAM controller to focus solely on memory access operations, thereby improving access efficiency while maintaining lighting functionality
2Adaptability or versatility
If hardware components such as oscillator and capacitor are added to control the light-emitting diode, then the light beam can be emitted, but only limited flickering effects can be provided
Solution Approach 1:
The patent replaces the traditional hardware-based flickering control (using oscillators and capacitors) with a software-based control approach. The LED controller executes stored control signals that define various flickering patterns, eliminating the need for multiple hardware components while providing diverse flickering modes
Solution Approach 2:
The patent achieves diverse flickering effects by changing the parameters of control signals (such as duty cycle, frequency, and timing patterns) rather than adding hardware components. The LED controller can dynamically adjust these parameters to create different flickering modes, providing versatility without increasing device complexity
3Adaptability or versatility
If only a small number of flickering modes are provided according to data flow detection, then the control is simple, but the requirements of consumers for diverse flickering modes cannot be met
Solution Approach 1:
The LED controller is designed as a universal control unit that can execute multiple types of control signals for different flickering modes. It responds to various trigger conditions (data flow detection, user input, system events) and can switch between different flickering patterns, providing multi-functionality while maintaining simple control through a unified interface
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables diverse and dynamic lighting modes for DRAM modules without compromising the controller's access efficiency, enhancing user appeal and operational performance.
Implementation Method 1
a light-emitting diode (LED) is mounted on a printed circuit board (PCB) for the DRAM, and the light-emitting diode emits a light beam
Data Source
AI summary
A light-emitting device and a control method are provided. The light-emitting device is applied to a memory module. The light-emitting device includes at least one memory module board, at least one light-emitting board and an application program unit. The at least one memory module board is connected with a host. Each light-emitting board includes plural light-emitting units and a control unit. The control unit controls a lighting mode of the plural light-emitting units. The control unit is electrically connected with the host through the corresponding memory module board. The application program unit generates a control signal. The control signal is transmitted to the control unit of each light-emitting board through the host. The control unit controls the corresponding light-emitting units according to the control signal.