Data processing apparatus/method and electronic apparatus with such apparatus/method
AssigneeCanon Kabushiki Kaisha
InventorTakashi Kobayashi
Life of this patent
Estimating the term…
Abstract
A data processing apparatus for performing data communication via a digital interface includes a receiver circuit for receiving reception data and a transmitter circuit for transmitting transaction data corresponding to the reception data. The transaction data includes a source ID representative of a source node and a destination ID representative of a destination node. ID information of the data processing apparatus is controlled by a management control circuit. An ID setting circuit sets the ID information from the management control circuit as the source ID of the transaction data, and sets a source ID included in the reception data as the destination ID of the transaction data.
Claims12
A data communication apparatus comprising:
- an ID information management unit adapted to manage ID information of the apparatus, the ID information management unit automatically setting the ID information when a topology of a communication system is determined;
- a receiver unit adapted to receive a first packet, the first packet including a source ID representing a source node and a destination ID representing a destination node;
- a header generation unit adapted to generate a header of a second packet corresponding to the first packet, the header generation unit setting the ID information provided from the ID information management unit as a source ID of the second packet and setting the source ID of the first packet as a destination ID of the second packet;
- and
- a transmission unit adapted to transmit the second packet.
A method of controlling a data communication apparatus, the method comprising:
- a management step of managing ID information of the apparatus, the managing step automatically setting the ID information when a topology of a communication system is determined;
- a reception step of receiving a first packet, the first packet including a source ID representing a source node and a destination ID representing a destination node;
- a header generation step of generating a header of a second packet corresponding to the first packet, the header generation step setting the ID information managed in the management step as a source ID of the second packet and setting the source ID of the first packet as a destination ID of the second packet;
- and
- a transmission step of transmitting the second packet.
Dependencies are inferred from the claim text.