JPH07221883A - Calculating device for telephone call charge - Google Patents

Abstract

PURPOSE:To provide the telephone call charge calculation device in which useless memory area for storing data being a basis on telephone call charge calculation is omitted and which copes flexibly with data revision such as revision of a telephone call charge smoothly. CONSTITUTION:The device is provided with a ROM 1 storing initial data for telephone call charge calculation, a RAM 2 storing the initial data transferred from the ROM 1 and their revision data to a specific area, and a data selection circuit 3 selectively reading recording data in both the memories, and the data selection circuit 3 selects the data in the ROM 1 when the data of the RAM 2 are revised and selects the data in the RAM 2 after the revision for reading.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call charge calculating device incorporated in a telephone device, and more particularly to a call charge calculating device having a function of switching between old charge data and new charge data when charges are simultaneously revised.

[0002]

2. Description of the Related Art In recent years, due to an increase in awareness of communication costs, there is an increasing demand for telephones with a management function that have a function for displaying telephone call charges and the like, and call charge management devices installed in extension systems. Also, due to the liberalization of the first-class telecommunications business, an adapter that automatically selects and calls the line with the cheapest long-distance call charge according to the difference in charge between telephone companies, and a similar selection function Phones with built-in are popular.

In order to realize the charge display function and the charge comparison / selection function, a memory device for storing charge data corresponding to different charge systems and service areas of each company providing the long distance call service is provided. A call charge calculator is required. Moreover, it is desired that such a device be small and simple.

However, in response to the frequent revision of call charges due to competition between companies providing long-distance call services, the charge data may be modified by online maintenance or the like. It came to be done. In order to cope with these circumstances, the memory configuration of the call charge calculation device must be complicated.

A conventional call charge calculation device of this type is based on a RAM (Random Access Memory) having two or more memory areas for storing call charge related data and data recorded in any memory area of this RAM. And a data selecting means for selecting whether to calculate the call charge.

Initial data for fee setting is transferred from an internal or external ROM (Read Only Memory) to the first memory area of the RAM at the start of use. At this time, the data selection means is set on the side of the first memory area, and the call charge is calculated based on the initial data recorded in the area.

When the revision of the call charge is decided, the update data is recorded in the second memory area of the RAM. However, the second
Even if the update data is recorded in the memory area, it is necessary to calculate the call charge based on the initial data until the charge revision date and time arrives. The print data is read, and after the passage, it is switched to the print data in the second memory area and read. After switching to the second memory area, the first memory area is not used until the next charge revision.

[0008]

In the future, it is expected that companies that provide long-distance calling services will provide more detailed services such as multiple charge systems and subdivision of service areas. The memory area requires more capacity. Therefore, where effective utilization of the memory area is desired, R of the conventional call charge calculation device is used.
As described above, the AM has a memory area which is not used at all except when the work for revising the charge is performed. Further, if a ROM storing the initial data is built-in, after the initial data is transferred to the RAM, the ROM
There was a waste that nothing was used.

On the other hand, in the conventional call charge calculation device,
If there is only one memory area on the RAM, there is a problem that the call charge cannot be calculated while the work for revising the charge is being performed.

In view of the above problems, it is an object of the present invention to provide a call charge calculation device which can eliminate waste of a memory area and can flexibly deal with data changes such as revision of call charges smoothly.

[0011]

The call charge calculation device of the present invention is effective for a telephone device or the like that does not have an extra memory, and is an initial data recording in which initial data which is the basis of the call charge is recorded. An apparatus, a RAM in which one area for recording the initial data transferred from the initial data recording apparatus and the update data of the initial data transferred from the data update control means is formed, and the initial data recording apparatus or RA
Data selection means for selectively reading the print data from M is provided, and the data selection means reads the print data of the initial data recording device at the time of data recording in the RAM.

In the call charge calculating device having the above structure, the data selecting means converts the initial data inputted from the initial data recording device into the pre-update data recorded in the RAM, and the output data of the data converting circuit. And a data switching circuit for selectively switching the updated data read from the RAM.

[0013]

In the call charge calculation device of the present invention, first, the initial data, which is the basis of the call charge, is transferred from the initial data recording device to the RA.
It is transferred to M and recorded in one specific memory area. In the initial state, the data selection means reads out the recording data (initial data) from the RAM. Next, when it becomes necessary to update the data due to a charge revision or the like, the update data derived from the data update control means is recorded in the above area of the RAM. That is, the initial data is rewritten. At the time of this update data recording, the data selection means reads the data (initial data) on the initial data recording device side instead of reading the data from the RAM. Thereby, the calculation of the call charge based on the initial data is continuously executed.

In the second and subsequent data updates, the initial data input from the initial data recording device is converted into the (first) updated data on the RAM by the data conversion circuit. Then, based on the command, the output data of the data conversion circuit and the second update data read from the RAM are selectively switched by the data switching circuit. The same applies to subsequent data updates. This makes it possible to handle multiple revisions of call charges.

[0015]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a call charge calculation apparatus according to an embodiment of the present invention, in which 1 is a ROM, 2 is a RAM, 3 is a data selection circuit, 4 is an arithmetic circuit, 5 and 6 are transfer circuits, 7
Is an external control circuit. The call charge calculation device having such a configuration is used by being built in the telephone device.

The ROM 1 records initial data, for example, call charge data when the telephone is installed. The type of this data can be arbitrarily determined by the user. One memory area for call charge setting data is formed in the RAM 2, and at the start of use, the initial data recorded in the ROM 1 is transferred by the transfer circuit 5 and recorded in this area.

The data selection circuit 3 is a ROM 1 or a RAM.
Select and read one of the 2 recording data,
In normal operation, the recording data in the RAM 2 is set to be selected. Here, the normal operation refers to an operation time other than the case where the data recorded in the RAM 2 needs to be updated (described later).

The arithmetic circuit 4 calculates the call charge based on the output data from the data selection circuit 3 and displays the calculation result on a display device (not shown). During normal operation,
Call charges are calculated based on the initial data.

Next, the case where the initial data is updated by the fee revision will be described. At this time, the update data is transferred from the external control circuit 7 via the transfer circuit 6.
The update data may be sent online via a telephone line or the like in addition to the illustrated configuration.

When update data is sent to the RAM 2,
For example, the existing data transfer monitoring means (not shown) detects the input of the update data, and the data selection circuit 3 correspondingly detects the recording medium of the data to be read as RO.
Switch to M1 side. As a result, even if the data in the RAM 2 is being updated, it is possible to continue the consistent call charge calculation based on the initial data recorded in the ROM 1.

When the call charge revision date comes and the environment for using the update data is adjusted, the data selection circuit 3 selects the record data (update data) of the RAM 2 and guides it to the arithmetic circuit 4. As a result, the arithmetic circuit 4 executes a new call charge calculation. This completes the operation associated with the first data update.

FIG. 2 shows a data selection circuit 3 used in this embodiment.
FIG. 6 is a configuration diagram of the above, showing an example in which the second and subsequent data updates can be supported.

The data selection circuit 3 has a data input circuit 31, a data conversion circuit 32, and a data switching circuit 33. The data input circuit 31 inputs the updated data read from the RAM 2, that is, the updated latest data. The data conversion circuit 32 converts the initial data input from the ROM 1 into the pre-update data in the RAM 2. Specifically, a value obtained by multiplying the output data of the data input circuit 31 by a predetermined coefficient value is used as the pre-update data. In addition,
The pre-update data is the data immediately before being updated.

The data switching circuit 33 is the data input circuit 3
1 and the output data of the data conversion circuit 32 are selectively switched. Here, as in the case described above, the output data of the data input circuit 31 is set to be selected during normal operation, and the output data of the data conversion circuit 32 is selected when the RAM 2 is updated again. As a result, it is possible to continue the consistent call charge calculation even during the re-update.

When the call charge revision date and time comes and the environment for using the re-update data is adjusted, the data switching circuit 33 selects the output data (re-update data) of the data input circuit 31 again and leads it to the arithmetic circuit 4. As a result, the arithmetic circuit 4 executes a new call charge calculation. This completes the operation associated with the second data update. Hereinafter, the same work is repeated every time the data is updated.

As described above, in the call charge calculation apparatus of this embodiment, R which has not been used at all after the initial data is set.
By using OM1 when updating data, RA
It is possible to eliminate waste of the memory area on the M2, and to smoothly handle the charge revision and the like without stopping the function of calculating the call charge.

Further, as shown in FIG. 2, by converting the data in the ROM 1 and using it as the pre-update data in the RAM 2, it is possible to flexibly cope with several data updates and the like, which is inexpensive. It is possible to realize a call charge calculation device having a configuration.

Although the present embodiment is as described above, the present invention is not limited to the above embodiment and can be implemented in various modes without departing from the scope of the invention.

[0030]

As is apparent from the above description, according to the present invention, it is possible to eliminate waste of the memory area for recording data which is the basis of call charge calculation and to smoothly change data such as revision of call charge. It is possible to provide a call charge calculation device that can flexibly respond.

The present invention can be applied to the same type of application for switching data using a plurality of memory devices, in addition to the telephone device.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a main part of a call charge calculation device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a data selection circuit used in this embodiment.

[Explanation of symbols]

 1 ROM 2 RAM 3 Data selection circuit 31 Data input circuit 32 Data conversion circuit 33 Data switching circuit 4 Arithmetic circuit 5, 6 Transfer circuit 7 External control circuit

Claims (2)

[Claims] 1. A call charge calculation device provided in a telephone, wherein an initial data recording device in which initial data serving as a basis for a call charge is recorded, and initial data and data update control means transferred from the initial data recording device. A RAM in which one area for recording the update data of the transferred initial data is formed, and the initial data recording device or R
And a data selecting means for selectively reading recorded data from the AM, wherein the data selecting means reads the recorded data of the initial data recording device at the time of recording data in the RAM. . 2. The call charge calculation device according to claim 1, wherein the data selection means converts the initial data input from the initial data recording device into pre-update data recorded in the RAM. A call charge calculation device comprising: a data switching circuit for selectively switching between output data of the data conversion circuit and updated data read from the RAM.