Crosstalk elimination method and system
AssigneeNEC Corporation
InventorMasaya Fujimura
Life of this patent
Estimating the term…
Abstract
A crosstalk elimination system allowing the reduced number of cables and a downsizing of transmission equipment is disclosed. A sending equipment includes a detector for detecting a possible crosstalk timing in each of the data signals by comparing phases of the clock signals to transmit it to the receiving equipment. A receiving equipment includes a read timing shifter for shifting a read timing of each of the clock signals associated with a corresponding data signal to a no-crosstalk timing determined based on the possible crosstalk timing.
Claims11
A system for eliminating crosstalk among a plurality of data signals traveling from sending equipment to receiving equipment through a transmission cable, wherein clock signals each associated with the data signals are not synchronized with each other, wherein
- the sending equipment comprises:
- a detector for detecting a possible crosstalk timing in each of the data signals by comparing phases of the clock signals to transmit the possible crosstalk timing to the receiving equipment, and
- the receiving equipment comprises:
- a read timing shifter for shifting a read timing of each of the clock signals associated with a corresponding data signal to a no-crosstalk timing determined based on the possible crosstalk timing.
A system for eliminating crosstalk among a plurality of data signals traveling from sending equipment to receiving equipment through a transmission cable, wherein clock signals each associated with the data signals are not synchronized with each other, wherein
- the sending equipment comprises:
- a phase comparator for comparing phases of the clock signals to produce a phase shift trigger signal indicating a possible crosstalk timing for each of the data signals, to transmit the phase shift trigger signal to the receiving equipment;
- the receiving equipment comprises:
- a read timing shifter for receiving the phase shift trigger signal and a corresponding clock signal and shifting a read timing of the corresponding clock signal depending on the phase shift trigger signal to produce a shifted read timing signal;
- and
- a data reading section for receiving the data signal, the corresponding clock signal, and the shifted read timing signal, and reading the data signal according to the shifter read timing signal to produce a first data signal and thereafter reading the first data signal according to the corresponding clock signal to produce a final data signal.
A method for eliminating crosstalk among a plurality of data signals traveling from sending equipment to receiving equipment through a transmission cable, wherein clock signals each associated with the data signals are not synchronized with each other, comprising the steps of:
- at the sending equipment,
- a) detecting a possible crosstalk timing in each of the data signals by comparing phases of the clock signals to transmit the possible crosstalk timing to the receiving equipment;
- and
- at the receiving equipment,
- b) shifting a read timing of each of the clock signals associated with a corresponding data signal to a no-crosstalk timing determined based on the possible crosstalk timing.
A method for eliminating crosstalk among a plurality of data signals traveling from sending equipment to receiving equipment through a transmission cable, wherein clock signals each associated with the data signals are not synchronized with each other, the method comprising the steps of:
- at the sending equipment,
- comparing phases of the clock signals to produce a phase shift trigger signal indicating a possible crosstalk timing for each of the data signals, to transmit the phase shift trigger signal to the receiving equipment;
- at the receiving equipment,
- receiving the phase shift trigger signal and a corresponding clock signal;
- shifting a read timing of the corresponding clock signal depending on the phase shift trigger signal to produce a shifted read timing signal;
- reading the data signal according to the shifter read timing signal to produce a first data signal;
- and
- reading the first data signal according to the corresponding clock signal to produce a final data signal.
Dependencies are inferred from the claim text.