Samsung patents 3-level signal method for faster data transmission
Samsung describes a transmitter and receiver system that sends data using three distinct voltage levels instead of the standard two. The device encodes data into specific patterns to ensure the voltage changes between signals stay within a safe range, which helps maintain signal quality over a connection.
In the filing’s own words
A transmitter includes a first encoder, a second encoder, a serializer and a driver. The first encoder pseudo random binary sequences to multi-level data and each level in the multi-level data indicating one voltage level of a plurality of voltage levels. The second encoder groups the multi-level data into a K-bit code and encode the K-bit code into (K+1)-bit code based on a mapping table. A difference in values between any two consecutive bits of the (K+1)-bit code is less than a difference between highest and lowest values that each bit in the (K+1)-bit code can have. The serializer generates a first serial data and a second serial data based on the (K+1)-bit code. The driver generates an output data signal based on the first serial data, the second serial data, a pull-up control code, and a pull-down control code and transmits the output data signal through a channel.
What exactly they claim (claim 1)
1. A transmitter comprising: a first encoder configured to encode one or more pseudo random binary sequences to multi-level data, each level in the multi-level data indicating one voltage level of a plurality of voltage levels comprising at least a first voltage level, a second voltage level and a third voltage level; a second encoder configured to group the multi-level data into a K-bit code and encode the K-bit code into (K+1)-bit code based on a mapping table, wherein a value of each bit of the (K+1)-bit code corresponds to a voltage level of the plurality of voltage levels, and K is three, wherein a difference in values between any two consecutive bits of the (K+1)-bit code is less than a difference between highest and lowest values that each bit in the (K+1)-bit code can have; a serializer configured to generate a first serial data and a second serial data based on the (K+1)-bit code; and a driver configured to generate an output data signal based on the first serial data, the second serial data, a pull-up control code, and a pull-down control code, and transmit the output data signal through a channel.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- TRANSMITTER AND RECEIVER FOR 3-LEVEL PULSE AMPLITUDE MODULATION SIGNALING AND SYSTEM INCLUDING THE SAME
- Publication number
- US20260332461A1
- Application number
- 19355613
- Filed
- Oct 10, 2025
- Published
- Oct 22, 2026
- Inventors
- 3
- Claims
- 20
Classified under
H04L 25/4917 Electricity & electronicsH04L 25/03006 Electricity & electronicsH04L 2025/03363 Electricity & electronicsMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.