A data communication system for controlling communications between a host data processing system and a remote data processing system. The host system communicates a plurality of output condition data signals to the remote system for storage therein. The host system then specifies the recall and output of the condition data signals previously stored in the remote system by transmitting corresponding condition name signals. The host system specifies whether condition data signals or condition name signals are to be sent to the remote system. The host system may send a predetermined number of condition data signals for storage at fixed sequential addresses within the remote system or the host system may specify particular addresses for storage of particular data signals in a memory within the remote system which has previously stored therein a set of default condition data signals. The remote system may include a means for repeating outputs specified by the host system. These outputs may be visual or tonal outputs. In a preferred embodiment the remote data processing system employs a central processing unit under program control via a plug-in ROM module.
An on-line system having a plurality of terminal equipments and host computers connectable to the terminal equipments, each host computer responsive to a job request from a terminal equipment being provided with an on-line process for transferring the control of the job request to a job execution process determined in accordance with the content of the job request, and a plurality of regular job execution processes for executing, if the job request is a regular job request, a regular job for the regular job request. The on-line control process is provided with an irregular job execution process space generating process for generating an irregular job execution process space for the irregular job execution. The irregular job execution process space generating process generates an irregular job execution process space upon the irregular job request from the terminal equipment, and calls an irregular job execution process request program for the irregular job request in the irregular job execution process space to execute an irregular job for the irregular job request.
A plurality of buzzer sound data obtained by converting different types of intermittent buzzer sounds to numerical values is stored in a buzzer source data memory. Coded data received from a host apparatus by a receiver is decoded by a receiver. A decoding result is stored in an index register. The buzzer sound data is read out from the buzzer sound data memory in response to the decoding result data in accordance with the instruction supplied from the host apparatus through a readout. The intermittent buzzer sounds corresponding to the readout buzzer sound data are produced by a buzzer unit.
A personal computer system with communication function, in which the operating mode is automatically controlled by a tone signal transmitted through a communication channel.
In a system including a host, at least one peripheral and a peripheral repeater having a transmitter/receiver for the peripheral, with the peripheral repeater receiving messages from the peripheral and retransmitting them to the host and receiving messages from the host and retransmitting the messages to the peripheral when a change in baud rate is desired, a message is sent from the host to the peripheral, through said peripheral repeater to set a new baud rate, another message is sent from the host to the peripheral repeater to change the baud rate of the transmitter/receiver and the baud rate of the peripheral which was set is maintained in a table in the host.
The disclosed communication system enables communications between reconfigurable data terminals and a variety of connected computers, having dissimilar operating parameters, by automatically reconfiguring the operating parameters of the calling terminal to match those of the called computer. The system controller, in response to receiving the dialed number of the called computer from the calling terminal, accesses its memory for the operating parameters of the called computer and transmits these operating parameters to reconfigure the calling terminal. Another embodiment enables the operating parameters of a terminal to be reconfigured in any of a number of operating modes in response to a reconfiguration request signal sent to the system controller from the terminal.
