A processor unit is incorporated in a vehicle as an engine control unit (ECU). In the ECU, in response to occurrence of an event, an activation request program requests a real time operating system to activate a task that includes an event process corresponding to the event. The event processes corresponding to cyclic events, which occur in synchronous with the engine cycle or at regular intervals, are included in dedicated tasks each of which is created as one of the tasks for executing only one event process. Therefore the activation request program does not need to store the ID of the event process in a queue when it requests activation of a dedicated task. Further, when a dedicated task is activated by the RTOS, it can identify an event process to be executed without retrieving the ID of the event process from the queue.

Processor unit for executing event process in real time in response to occurrence of event

Strength recovery for silicon carbide sintered body processed article

PURPOSE:To specify transfer destinations corresponding to originating subscribers by allowing an incoming transfer contactor subscriber to register previously telephone numbers of originating subscribers and transfer destination telephone numbers corresponding to them CONSTITUTION:An exchange 4 fins an incoming translation word and a transfer destination registration table according to the telephone number DN of the incoming transfer contractor subscriber A and the extracts a transfer destination telephone number TRSDNB on the basis of the telephone number ODNX of an originating subscriber X The number is translated by using the extracted dial number and connected to a transfer destination subscriber B Similarly, when an oscillating subscriber Y dials the telephone number DN of the incoming transfer contractor subscriber A, a transfer destination telephone number TRSDNC is found and a connection with a transfer destination subscriber C is made When an originating subscriber Z dials the telephone number DN of the incoming transfer contractor subscriber A, it is connected to no transfer destination or a predetermined transfer destination because no transfer destination telephone number corresponding to the subscriber Z is present in the exchange 4

Incoming transfer system

PURPOSE:To eliminate the necessity of increasing the designing manhour and storage area even when the kinds and functions of terminals become various, by separating tasks including the functions and conditions inherent to the terminals from call control tasks as terminal tasks. CONSTITUTION:The event monitoring section 11 of a central control unit 10 receives operation button information from one of terminal circuits 20 and, when the section 11 confirms a push-button telephone set 22, a terminal task program 16 in a memory device 15 is called through a terminal task section 12 and a call control task is actuated. As a result, a call control task section 13 calls a call control task 17 and connects the telephone set 22 with a dial register 70 through a circuit switch 40 and main switch 60. The register 70 receives dial codes from the calling subscriber. Accordingly, processes peculiar to terminals at every kind of circuit and call control at every kind of connection control are performed.

Exchange system control system

PURPOSE:To allow an individual user to apply optional service request by using a key provided to a terminal equipment so as to program the content of the service freely. CONSTITUTION:The terminal equipment 3 provided with a key programming the content of the service on request, a storage means storing the content of the service programmed in advance by the key of the terminal equipment 3, and an exchange 1 executing the service to the terminal equipment 3 based on the content of the service stored in the storage means, are provided. That is, in programming the content of the service by the key provided to the terminal equipment 3, the content of the service is stored in the storage means and the exchange 1 executes the content of the service stored in the storage means. Thus, the user of the terminal equipment 3 requests an optional service with respect to individual circumstance to obtain a flexible system.

Multi-function telephone system

PURPOSE:To facilitate the increase, alteration and deletion of slave tasks with a real time processing system of stored program control system, by comparing the information transmitted to a task control mechanism by a master task with the slave task generating conditions. CONSTITUTION:The generating conditions SC1 and SC2 of slave tasks TS1 and TS2 whose generation and erasion are controlled by a task control mechanism TCR are previously set to a generating condition store region SCA. When a master task TM reaches a certain state Si, the information showing the state Si is stored in a state information store region SIA by a state transmission macroinstruction SD(Si). The mechanism TCR produces a slave task TSj when the state Si satisfies the generating conditions SCj stored in the region SCA and then deletes the task TSj when the conditions SCj is not satisfied and the task TSj is already generated.

Task control system

PURPOSE:To allow a subscriber to use his/her own exchange service by producing an exchange service program for a terminal device and transferring the program to another terminal device via a call controller CONSTITUTION:A user of a terminal device Ta wants the name selection service and feeds a prescribed indication through a keyboard KBa Thus a program production program PGa within an external memory EMa is loaded to a memory MM and executed to produce a name selection program P2 containing a convertion table for conversion of a name into a telephone number together with use of the keyboard KBa and a display DPa The program P2 is stored to the memory EMa When the user of the terminal Ta feeds the name of the user of a terminal device Tb through the KBa, an execution control program CCa loads the P2 stored in the EMa to the MM for execution Then the name is converted into a telephone number of the corresponding device Tb

Execution control system for exchange service

PURPOSE:To prevent the increase of scale in call processing program and also to facilitate the easy change in program such as addition, deletion, etc., by setting the state (e.g., busy, all) of an upper call and deciding a task according to the upper call state, an input event and a task decision table. CONSTITUTION:In case such a task that has the common state of each call to a specific input event type is designated, the state of a high-order call representing the states of calls is set instead of a case where an input event is set at the state of each call. Then a task is decided. For this purpose, a task decision table 22a is provided to a main memory 22 of a high performance terminal 2. Then a call state table 220 of the table 22a stores states 809 all, 907 busy and 908 all of an high-order call in addition to each call state. While an event type-based table 221 stores the input event types (incoming request, data information request, etc.) for execution of a common task. Furthermore a service counter table 222 stores the task names (transfer service, store service, data information service, etc.) which should be executed according to the stored input event types.

Call processing task control system

PURPOSE:To execute easily addition and deletion and modification of priority order of exchange service by making optionally registration of plural services with respect to one event a possible and activating sequentially the service having higher registered priority. CONSTITUTION:A state memory part for storing the call state, an input event kind memory part for storing the kind of input events and a task deciding table for retrieving in such a way that the registered priority of service and contents are sequentially incremented are provided in main memory device 2-2 of a high performance terminal 2. Desired tasks are sequentially executed in accordance with the information sequentially read out from the task deciding table based on the call state read out from the state memory part and the priority information of the event and tasks read out from the input event kind memory part.

Control system of call processing task

PURPOSE:To offer original incoming transfer service to every subscriber by providing a terminal device which has an exchange processing function with a means which registers the transfer destination of an incoming call. CONSTITUTION:Terminal equipments Ta, Tb, and Tc of respective subscribers have the exchange processing function, and channels among the respective terminals are set through a channel controller PC. When the subscriber of the terminal Ta performs registering operation by using a keyboard device KB and a display device DP for transferring an incoming call from the terminal Tc to the terminal Tb, the registration processing mechanism RP in a processor PU is actuated to register the telephone number of the origination and the telephone number of the transfer destination in the registration table RT in a storage device MEM. When a request to call from the terminal Tc to the terminal Ta is made through the channel controller PC, it is transferred to the transfer destination terminal Tb according to the registration table RT.

Hakuta Akira

Papers

Task control system

Execution control system for exchange service

Call processing task control system

Control system of call processing task

Transfer control system of incoming