Back to results
US 9,742,695 B2Granted
Relay device and connector
AssigneeYazaki Corporation
InventorsYou Yanagida, Hiroki Hamaguchi
Life of this patent
Estimating the term…
Abstract
To provide a relay device capable of increasing the number of connected nodes in a bus-type network, and a connector providing the relay device. An active-star coupler as the relay device includes a bit width distortion correction circuit and a ringing pulse absorption circuit, corrects bit width distortion in bit units using the bit width distortion correction circuit and absorbs and eliminates ringing pulses in a terminus of a communication frame using the ringing pulse absorption circuit.
Claims7
A relay device for receiving an input signal including a communication frame comprising a signal indicating a head of data, a plurality of bits of data, and a signal indicating a terminus of data by an input channel, and for processing the input signal to transmit an output signal from an output channel, the relay device comprising:
- a clock circuit configured to generate a clock signal having a frequency higher than that of the input signal and provide the clock signal to a bit width distortion correction circuit and a ringing pulse absorption circuit;
- the bit width distortion correction circuit performing bit width distortion correction processing on the input signal for each bit of the plurality of bits of data;
- and
- the ringing pulse absorption circuit performing ringing pulse elimination processing on the input signal corrected in the bit width distortion circuit by a ringing pulse elimination portion to eliminate ringing pulses present in the input signal after the terminus of data,
- wherein the bit width distortion correction circuit detects the signal indicating the head of data and generates a sampling signal using the clock signal provided from the clock circuit to sample the plurality of bits of data according to the signal indicating the head of data as a reference,
- wherein the ringing pulse absorption circuit fixes a signal level of signals continued to the signal indicating the terminus of data to a predetermined level when the ringing pulse absorption circuit detects the signal indicating the terminus of data, the predetermined level indicating an idle state, and
- wherein an output signal from the ringing pulse absorption circuit is transmitted to the output channel.
4 more elements
A connector comprising:
- a relay device for receiving an input signal including a communication frame comprising a signal indicating a head of data, a plurality of bits of data, and a signal indicating a terminus of data by an input channel, and for processing the input signal to transmit an output signal from an output channel, the relay device comprising:
- a clock circuit configured to generate a clock signal having a frequency higher than that of the input signal and provide the clock signal to a bit width distortion correction circuit and a ringing pulse absorption circuit;
- the bit width distortion correction circuit performing bit width distortion correction processing on the input signal for each bit of the plurality of bits of data;
- and
- the ringing pulse absorption circuit performing ringing pulse elimination processing on the input signal corrected in the bit width distortion circuit by a ringing pulse elimination portion to eliminate ringing pulses present in the input signal after the terminus of data,
- wherein the bit width distortion correction circuit detects the signal indicating the head of data and generates a sampling signal using the clock signal provided from the clock circuit to sample the plurality of bits of data according to the signal indicating the head of data as a reference,
- wherein the ringing pulse absorption circuit fixes a signal level of signals continued to the signal indicating the terminus of data to a predetermined level when the ringing pulse absorption circuit detects the signal indicating the terminus of data, the predetermined level indicating an idle state,
- wherein an output signal from the ringing pulse absorption circuit is transmitted to the output channel, and
- a connection portion is electrically coupled to the relay device, wherein the connection portion engages with a mating connector.
6 more elements
A network system comprising:
- an active coupler for receiving an input signal including a communication frame comprising a signal indicating a head of data, a plurality of bits of data, and a signal indicating a terminus of data by an input channel and for processing the input signal to transmit an output signal from an output channel, the active coupler comprising:
- a clock circuit configured to generate a clock signal having a frequency higher than that of the input signal and provide the clock signal to a bit width distortion correction circuit and a ringing pulse absorption circuit;
- the bit width distortion correction circuit performing bit width distortion correction processing on the input signal for each bit of the plurality of bits of data;
- and
- the ringing pulse absorption circuit performing ringing pulse elimination processing on the input signal corrected in the bit width distortion circuit by a ringing pulse elimination portion to eliminate ringing pulses present in the input signal after the terminus of data,
- wherein the bit width distortion correction circuit detects the signal indicating the head of data and generates a sampling signal using the clock signal provided from the clock circuit to sample the plurality of bits of data according to the signal indicating the head of data as a reference,
- wherein the ringing pulse absorption circuit fixes a signal level of signals continued to the signal indicating the terminus of data to a predetermined level when the ringing pulse absorption circuit detects the signal indicating the terminus of data, the predetermined level indicating an idle state, and
- wherein an output signal from the ringing pulse absorption circuit is transmitted to the output channel;
- a plurality of nodes;
- and
- at least two passive couplers, wherein the passive couplers are connected to the plurality of nodes,
- wherein the active coupler is inserted between the passive couplers.
9 more elements
Dependencies are inferred from the claim text.