Data communication apparatus and method capable of selecting a communication database in accordance with an attribute of a destination
First Claim
1. Data communication apparatus connected to a local area network (LAN) for transmitting data to a destination communication apparatus via a communication line, comprising:
- reception means for receiving a transmission request from a first terminal apparatus connected to the LAN;
determination means for determining whether or not a predetermined identifier is included in the transmission request received by said reception means;
inquiry means for inquiring for communication parameters related to the destination communication apparatus, to a predetermined second terminal apparatus connected to the LAN; and
control means for performing communication control of the data in accordance with the transmission request,wherein if it is determined by said determination means that the predetermined identifier is included in the received data, said control means performs communication control based on the communication parameters obtained by said inquiry means, while if it is determined by said determination means that the predetermined identifier is not included in the received data, said control means performs communication control based on communication parameters included in the transmission request received by said reception means.
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Accused Products
Abstract
When data is to be sent from a communication apparatus connected to a local area network (LAN) to a destination communication apparatus via a communication line, communication parameters related to the destination communication apparatus are inquired to a predetermined terminal apparatus upon reception of a transmission request from a terminal apparatus connected to the LAN. Communication control of the data is performed in accordance with the transmission request based on the communication parameters obtained by the inquiry. Also transmission control of the data is performed in accordance with a communication mode decided based upon the result of an interpretation of reception capability of the destination communication apparatus.
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Citations
19 Claims
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1. Data communication apparatus connected to a local area network (LAN) for transmitting data to a destination communication apparatus via a communication line, comprising:
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reception means for receiving a transmission request from a first terminal apparatus connected to the LAN; determination means for determining whether or not a predetermined identifier is included in the transmission request received by said reception means; inquiry means for inquiring for communication parameters related to the destination communication apparatus, to a predetermined second terminal apparatus connected to the LAN; and control means for performing communication control of the data in accordance with the transmission request, wherein if it is determined by said determination means that the predetermined identifier is included in the received data, said control means performs communication control based on the communication parameters obtained by said inquiry means, while if it is determined by said determination means that the predetermined identifier is not included in the received data, said control means performs communication control based on communication parameters included in the transmission request received by said reception means. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Data communication apparatus connected to a local area network (LAN) for transmitting data to a destination communication apparatus via a communication line, comprising:
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request means for requesting transmission of predetermined parameters to a specified terminal apparatus on the LAN; interpret means for interpreting reception capability of the destination communication apparatus in accordance with the parameters; decision means for determining a communication mode based on the reception capability; control means for performing transmission control of the data in accordance with the communication mode; determination means for determining whether or not the reception capability, interpreted by said interpret means, has been changed based on the transmission control performed by said control means; and notification means for notifying the specified terminal that the reception capability has been changed, if it is determined that the reception capability has been changed by said determination means. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. Data communication method for transmitting data from a data communication apparatus connected to a local area network (LAN) to a destination communication apparatus via a communication line, comprising the steps of:
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receiving a transmission request from a first terminal apparatus connected to the LAN; determining whether or not a predetermined identifier is included in the transmission request received in said receiving step; inquiring for communication parameters related to the destination communication apparatus to a predetermined second terminal apparatus connected to the LAN; and performing communication control of the data in accordance with the transmission request, wherein if it is determined in said determining step that the predetermined identifier is included in the received data, communication control is performed in said performing step based on the communication parameters obtained in said inquiring step, while if it is determined in said determining step that the predetermined identifier is not included in the received data, communication control is performed in said performing step based on communication parameters included in the transmission request received in said receiving step.
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17. Data communication method for transmitting data from a data communication apparatus connected to a local area network (LAN) to a destination communication apparatus via a communication line, comprising the steps of:
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requesting transmission of predetermined parameters to a specified terminal apparatus on the LAN; interpreting reception capability of the destination communication apparatus in accordance with the parameters; determining a communication mode based on the reception capability; performing transmission control of the data in accordance with the communication mode; determining whether or not the reception capability, interpreted in said interpreting step, has been changed based on the transmission control performed in said performing step; and notifying the specified terminal that the reception capability has been changed, if it is determined that the reception capability has been changed in said determining step.
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18. A computer readable medium for storing a computer program to make a computer transmit data to a destination communication apparatus connected with a local area network (LAN), said program comprising the steps of:
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receiving a transmission request from a first terminal apparatus connected to the LAN; determining whether or not a predetermined identifier is included in the transmission request received in said receiving step; inquiring for communication parameters related to the destination communication apparatus to a predetermined second terminal apparatus connected to the LAN; and performing communication control of the data in accordance with the transmission request, wherein if it is determined in said determining step that the predetermined identifier is included in the received data, communication control is performed in said performing step based on the communication parameters obtained in said inquiring step, while if it is determined in said determining step that the predetermined identifier is not included in the received data, communication control is performed in said performing step based on communication parameters included in the transmission request received in said receiving step.
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19. A computer readable medium for storing a computer program to make a computer transmit data to a destination communication apparatus connected with a local area network (LAN), said program comprising the steps of:
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requesting transmission of predetermined parameters to a specified terminal apparatus on the LAN; interpreting reception capability of the destination communication apparatus in accordance with the parameters; determining a communication mode based on the reception capability; performing transmission control of the data in accordance with the communication mode; determining whether or not the reception capability, interpreted in said interpreting step, has been changed based on the transmission control performed in said performing step; and notifying the specified terminal that the reception capability has been changed, if it is determined that the reception capability has been changed in said determining step.
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Specification