Method and communication system for data communication via a cable
AssigneeNEC Corporation
InventorsJunichi Takeuchi, Koichiro Suzuki
Life of this patent
Estimating the term…
Abstract
First, two subsystems are connected with each other via a communication cable and then recognize physical connection between the two subsystems. Next, each one of the two subsystems ignores signals from the other subsystem for a predetermined time period after recognition of the physical connection. Then, the two subsystems execute the connection procedure and after that, establish data communication between the two subsystems.
Claims21
A method of establishing data communication between two subsystems via a communication cable in a communication system, the data communication being established after a predetermined connection procedure between the subsystems via the communication cable, comprising tho steps of:
- connecting two subsystems with each other via the communication cable;
- recognizing physical connection between the two subsystems by the two subsystems;
- ignoring signals from one of the two subsystems by the other for a predetermined time period from the recognizing step;
- executing the connection procedure by the two subsystems;
- and
- establishing data communication between the two subsystems.
A communication system for establishing data communication, comprising at least one communication cable and at least two subsystems, the communication cable connecting two of the subsystems with each other, the data communication being established between the subsystems after a predetermined connection procedure, wherein each of the subsystems comprises:
- a physical layer interface circuits for recognizing physical connection with another subsystem and executing the connection procedure;
- and
- a protection circuit for ignoring signals sent from another subsystem for a predetermined time period after the physical layer interface circuit recognizes physical connection with another subsystem.
A device which establishes data communication with another device via a communication cable, the data communication being established after a predetermined connection procedure, comprising:
- a physical layer interface circuits for recognizing physical connection with another device and executing the connection procedure;
- and
- a protection circuit for ignoring signals sent from another device for a predetermined time period after the physical layer interface circuit recognizes physical connection with another device.
Dependencies are inferred from the claim text.