Multi-Level Serial Transmission Signaling for Higher Data Capacity
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Solution Overview
Problem
Current communication systems face limitations in increasing transmission capacity to keep pace with the growing data exchange demands in highly functional electronic devices.
Innovation Solution
A transmission device and method that include a transmission symbol generator unit, serializer unit, and driver unit, which generate and serialize transmission symbol signals based on transition signals, enabling the transmission of serial signals to increase transmission capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data exchange is carried out with utilization of a high-speed interface to transmit and receive data at several Gbps, then transmission speed is improved, but transmission capacity becomes insufficient for growing data exchange demands
Solution Approach 1:
The invention segments the transmission signal into multiple parallel channels by utilizing multiple voltage levels (e.g., three voltage levels: VH, VM, VL). Each voltage level transition represents different data states, effectively dividing the transmission capacity into multiple concurrent data streams within the same physical interface, thereby increasing overall transmission capacity without requiring higher clock frequencies
Solution Approach 2:
The invention changes the voltage level parameter from traditional single-level (0V/1.5V) to multi-level (e.g., 0V/0.75V/1.5V) signaling. By introducing intermediate voltage levels and utilizing transitions between multiple voltage states (including non-return-to-zero inverted encoding), the system increases the information density per signal transition, thereby enhancing transmission capacity while maintaining the same physical transmission medium and speed
2Productivity
If clock frequency is increased to achieve higher transmission capacity, then data exchange rate is improved, but possibility of erroneous operations increases
Solution Approach 1:
The invention employs periodic voltage level transitions in a controlled manner using encoding schemes such as non-return-to-zero inverted (NRZI) encoding. Instead of relying on high clock frequencies, the system uses periodic signal transitions that are deliberately generated based on data patterns, allowing reliable detection without requiring proportionally higher clock speeds, thus maintaining operational accuracy while achieving higher effective transmission capacity
Solution Approach 2:
The invention introduces intermediate voltage levels (e.g., VM between VH and VL) as mediators in the signal transmission. These intermediate states provide additional information carriers and allow for more robust signal detection. The receiver can reliably distinguish between multiple voltage states, enabling higher data density per transmission cycle without increasing clock frequency, thereby avoiding the reliability issues associated with high-speed operation
Data Source
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AI summary
A transmission device of the disclosure includes: a transmission symbol generator unit that generates, on the basis of a predetermined number of transition signals each of which indicates a transition in a sequence of transmission symbols, transmission symbol signals that are equal in number to the predetermined number; a serializer unit that serializes the predetermined number of the transmission symbol signals, to generate a serial signal; and a driver unit that operates on the basis of the serial signal.