Photonic Memory Interconnect for Simultaneous Read-Write Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The rate of data transmission is slowed down by memory chips due to the need to read and write bits in relatively small numbers, which offsets the high bandwidth benefits of optical fibers used for data transmission.
Innovation Solution
A photonic-interconnect system that encodes and decodes data sets into and from memory cells simultaneously using photonic devices and waveguides, allowing for concurrent reading and writing, leveraging photonic crystals and resonant cavities to manage electromagnetic signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is read from and written to memory cells in small numbers sequentially, then the memory chip can be manufactured with conventional technology, but the data transmission rate is slowed down significantly
Solution Approach 1:
The memory chip is divided into multiple independently addressable memory cells, each capable of being read or written individually or in parallel. This segmentation allows the system to access multiple memory cells simultaneously through different photonic channels, thereby increasing the data transmission rate without requiring complex sequential access mechanisms.
Solution Approach 2:
The patent replaces conventional electrical signal transmission with photonic signal transmission. Light signals are used to read data from and write data to memory cells simultaneously through different wavelengths or channels, eliminating the bottleneck of electrical signal interference and enabling parallel access to multiple memory cells, thus dramatically improving data transmission rate.
2Weight of stationary object
If optical fibers are used to transmit data with high bandwidth, then signal degradation is reduced and bandwidth is increased, but the memory chip's ability to read and write data in small numbers offsets these benefits
Solution Approach 1:
The patent introduces photonic interconnects as an intermediary between the optical fiber transmission system and the memory chip. These photonic interconnects provide parallel read and write channels that can simultaneously access multiple memory cells, acting as a buffer that matches the high bandwidth capability of optical fibers with the memory chip's data access rate, thereby preventing the memory chip from becoming a bottleneck.
Solution Approach 2:
The patent adds a temporal dimension to memory access by enabling simultaneous read and write operations on different memory cells through photonic channels. This dimensional change from sequential to parallel access allows the system to fully utilize the high bandwidth of optical fibers by processing multiple data bits concurrently rather than one at a time.
3Quantity of substance
If multiple wires are used to transmit multiple electrical signals, then data transmission capacity is increased, but the physical space and complexity increase proportionally
Solution Approach 1:
The patent substitutes electrical signal transmission through multiple physical wires with photonic signal transmission through optical fibers. A single optical fiber can carry multiple data channels simultaneously using different wavelengths or encoding schemes, providing the same or greater data transmission capacity as multiple electrical wires but occupying significantly less physical space and reducing connection complexity.
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
This system enhances data transfer rates by enabling simultaneous encoding and decoding of data across multiple memory cells, thereby overcoming the limitations of traditional memory chip data handling.
Implementation Method 1
encode a first data set stored in the memory cells into a first set of electromagnetic signals
Implementation Method 2
The photonic device is configured to transmit the first set of electromagnetic signals out from the photonic interconnect
Implementation Method 3
decode a second data set encoded in a second set of electromagnetic signals
Data Source
AI summary
Various embodiments of the present invention are related to photonic-interconnect systems for reading data from and writing data to memory cells of memory chips at approximately the same time. In one embodiment of the present invention, A photonic-interconnect system comprises a photonic interconnect coupled to a photonic device. The photonic interconnect is coupled to the memory chip and is configured to encode a first data set stored in the memory cells into a first set of electromagnetic signals at approximately the same time, decode a second data set encoded in a second set of electromagnetic signals at approximately the same time, and store the second data set in the memory cells. The photonic device is configured to transmit the first set of electromagnetic signals out from the photonic interconnect and transmit the second set of electromagnetic signals into the photonic interconnect.