Back to results
US 10,120,830 B2Granted
Interface circuit for high speed communication, and system including the same
AssigneeSK hynix Inc.
InventorKeun Soo Song
Life of this patent
Estimating the term…
Abstract
A system may include an interface circuit and a plurality of wire buses electrically coupled with one another. The interface circuit may include transmitters which change states of the plurality of wire buses to transmit a plurality of multilevel symbols. The transmitters may drive wire buses, coupled to each other, to a termination voltage level.
Claims23
An interface circuit comprising:
- a transmitter coupled with a plurality of wire buses, each wire bus comprising a plurality of wires, and configured to change states of the plurality of wire buses to transmit a plurality of multilevel symbols, wherein the plurality of wires of adjacent wire buses are electrically coupled with each other, and the transmitter drives the adjacent wire buses to a termination voltage level.
A system comprising:
- a first wire bus transmitter configured to change states of a plurality of wires of a first wire bus based on a first multilevel symbol;
- and
- a second wire bus transmitter configured to change a states of a plurality of wires of a second wire bus based on a second multilevel symbol,
- wherein, as the first wire bus transmitter pull-up drives at least one wire of the first wire bus and the second wire bus transmitter pull-down drives at least one wire of the second wire bus, the plurality of wires of the first and second wire buses are driven to a termination voltage level.
1 more element
A system comprising:
- a first wire bus transmitter configured to drive states of first to third wires to a high or low level based on a first multilevel symbol;
- and
- a second wire bus transmitter configured to drive states of fourth to sixth wires to a high or low level based on a second multilevel symbol,
- wherein, as the first wire bus transmitter drives one of the first to third wires to a high level and the second wire bus transmitter drives one of the fourth to sixth wires to a low level, the first to sixth wires are driven to a middle level.
1 more element
A system comprising:
- a first wire bus transmitter configured to change a state of a first wire bus based on a first multilevel symbol;
- and
- a second wire bus transmitter configured to change a state of a second wire bus based on a second multilevel symbol,
- wherein the first wire bus includes:
- a first wire having one end coupled to a first output driver and an other end coupled to a first common node;
- and
- a second wire having one end coupled to a second output driver and an other end coupled to the first common node,
- wherein the second wire bus includes:
- a third wire having one end coupled to a third output driver and an other end coupled to a second common node;
- and
- a fourth wire having one end coupled to a fourth output driver and an other end coupled to the second common node,
- wherein each of the first, second, third, and fourth drivers include, respectively, a pull-up driver and a pull-down driver configured to drive the first second third and fourth wires, respectively, to a high or low level.
9 more elements
Dependencies are inferred from the claim text.