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US 7,069,346 B2Granted
Apparatus and method for automatic router configuration
AssigneeLG Electronics Inc.
InventorJeong Kwon Lee
Life of this patent
Estimating the term…
Abstract
An apparatus and method of automatic router configuration is disclosed when a cable of the router in operation is replaced or a protocol configuration is changed, a PLD automatically senses the change and initializes parts of the system to normalize communication environments without turning off the power. A TVS circuit is provided to absorb and prevent an electrical shock so that cable replacement is made possible in the power-on state.
Claims25
An apparatus for automatic router configuration, comprising:
- a connector configured to provide a connection port to a data circuit terminating equipment (DCE);
- a multi-protocol transceiver coupled to the connector and configured to transmit and receive a plurality of protocol signals through the connector;
- a CPU having a serial communication control function coupled to the multi-protocol transceiver to process data received from or for transmission to a communication network according to a communication environment;
- a programmable logic device (PLD) coupled to sense a change in a connection state of the connector and to transfer information regarding the sensed change to the CPU;
- and
- an interrupt request (IRQ) signal line, an acknowledgment (ACK) signal line, a chip select (CS) signal line, a protocol mode line, and a cable state sensing line, wherein the IRQ signal line, the ACK signal line, and the CS signal line are coupled between the PLD and the CPU, and the protocol mode line and the cable state sensing line are coupled between the PLD and the connector, and wherein the IRQ signal line and the ACK signal line each separately comprise a control line to carry information between the CPU and the PLD relating to a change in the connection state of the connector, wherein the state is one of connection and disconnection.
3 more elements
A method of automatically configuring a router, comprising:
- sensing a change in a connection state of a connector between a router and a data circuit terminating equipment (DTE);
- transferring sensing information to an internal CPU when a change in the connection state of the connector is sensed;
- and
- initializing parts of the router and normalizing communication environments based on the sensing information, wherein transferring the sensing information to the internal CPU comprises:
- transmitting an interrupt request (IRQ) signal to the CPU when the change in the connection state of the connector is sensed:
- sending an acknowledgment signal from the CPU and requesting that a hardware protocol mode value be transmitted to the CPU;
- and
- transmitting a protocol connection mode value to the CPU.
5 more elements
A method of automatic router configuration, comprising:
- sensing a connection and disconnection state of a connector configured to connect to a data circuit terminating equipment (DCE) by a programmable logic device (PLD);
- determining a hardware protocol when a change in the state of the connector is sensed;
- sending an interrupt request signal to a CPU to inform the CPU of the change in the state of the connector;
- sending a response to the interrupt request signal from the CPU to the PLD to request the PLD to send a hardware protocol mode value to the CPU;
- transmitting the hardware protocol mode value from the PLD to the CPU;
- and
- initializing parts of the router and normalizing a communication environment based on information transmitted to the CPU.
4 more elements
A data terminal equipment (DTE) device, comprising:
- a connector configured to provide a connection port to a data circuit terminating equipment (DCE);
- a multi-protocol processor coupled to the connector and configured to transmit and receive two or more protocol signals through the connector and to initialize parts of the DTE after a connection of the connector to the DCE while power to the DTE is maintained;
- and
- a CPU having a serial communication control function coupled to the multi-protocol processor to process data received from or for transmission to a communication network according to a communication environment of a connection network,
- wherein the multi-protocol processor includes a programmable logic device (PLD) coupled to receive connection state and hardware protocol information from the connector and transmit an interrupt request (IRQ) signal to the CPU in accordance with the state and protocol information, and the PLD to transmit a protocol mode value to the CPU after receiving an acknowledgment to the IRQ from the CPU.
2 more elements
Dependencies are inferred from the claim text.