JPH07118736B2 - Compound terminal - Google Patents

Description

The present invention relates to a composite terminal device, and more particularly to a composite terminal device in which a personal computer and a digital multifunction telephone connected to a switchboard (PBX) are integrated.

[Conventional technology]

Conventionally, as a method of simultaneously displaying the screen information of a personal computer and the display information of a digital multi-function telephone, the display information from the digital multi-function telephone is converted into a microprocessor (CPU) of the personal computer by using a software program of the personal computer. There is a method in which the display information of the personal computer is combined with the screen information of the personal computer and displayed on the display device of the personal computer.

Hereinafter, a conventional method will be described with reference to the drawings.

FIG. 3 shows a block diagram of a composite terminal device in which a conventional personal computer and a digital multifunctional telephone are combined.

Reference numeral 1 denotes a personal computer, which inputs a software program or data from a keyboard 11 or an interface circuit 12, performs information processing by a microprocessor 13 and a memory 14, and a display device 4 by a controller 15.
Screen information of the personal computer 1 by controlling the liquid crystal display panel, plasma display, CRT (cathode ray
It is displayed on the display device 4 using a tube or the like.

Reference numeral 2 denotes a digital multi-function telephone, which is connected to the exchange (PBX) 5 by a digital line. The digital multifunctional telephone 2 includes a keypad 21, an analog input / output circuit 22 such as a handset, a microphone, a speaker, etc., and an analog input / output circuit 22.
It is composed of a codec (CODEC) 23 for mutually converting an analog signal inside and a digital signal used in another circuit, an interface circuit 24, a microprocessor (CPU) 25, and a memory 26.

Here, the digital multi-function telephone 2 has functions such as resending, holding, one-touch dialing, three-way calling, and calling number display, dial number display, clock display, alarm display, etc. in addition to the numeric keypad for calling numbers. And
The keypad 21 is provided with those function buttons.

The digital multi-function telephone 2 is controlled by a built-in microprocessor (CPU) 25 and recognizes control data sent from a digital line connected to a switchboard (PBX) 5,
Perform necessary calculations and create display information, and send it to the personal computer 1.

The personal computer 1 operates a software program dedicated to the digital multi-function telephone 2 to display the display information of the digital multi-function telephone 2 on the display device 4 together with the screen information of the personal computer.

[Problems to be Solved by the Invention]

Since the above-mentioned conventional composite terminal device has a method of displaying the display information of the digital multifunction telephone on the screen by the software processing of the personal computer, it is necessary to operate the software program dedicated to the digital multifunction telephone in the personal computer. However, there is a drawback that the digital multifunctional telephone cannot be displayed when another software program is running.

Further, since the display also depends on the display device and software of the personal computer, there is a drawback that the digital multifunction telephone cannot be displayed when the power of the personal computer is off.

[Means for Solving the Problems]

The composite terminal device of the present invention includes a personal computer,
Digital multi-function telephone and screen information of the personal computer are input and written from the first port in response to a write request from the personal computer, and display information of the digital multi-function telephone is written in response to a write request from the digital multi-function telephone. If there is a screen memory for reading the written screen information and the display information from the third port by inputting and writing from the second port, and a request to write the screen information and the display information to the screen memory at the same time. A memory information selection circuit for selecting any one of the above information and writing it in the screen memory;
The display device includes a display device that displays the screen information and the display information, and a display device control device that reads the screen information and the display information from the third port of the screen memory and displays the screen information on the display device.

〔Example〕

FIG. 1 is a block diagram showing a first embodiment of the composite terminal device according to the present invention.

A display device control device 3 causes the display device 4 to display a screen based on the screen information (including the display information of the digital multi-function telephone 2) stored in the screen memory 6. 6
Is a triple port type screen memory for writing the screen information of the personal computer 1 and the display information of the digital multifunctional telephone 2, and for permitting only one of the simultaneous write requests.

In the screen memory 6, 61 to 63 are bidirectional buffers, 64 is R
It is an AM circuit (random access memory, RAM). The RAM circuit 64 writes the screen information output from the personal computer 1 via the bidirectional buffer 62 and the display information output from the digital multifunction telephone 2 via the bidirectional buffer 63. Further, the arbiter circuit 65 gives write permission to only one of the personal computer 1 and the digital multifunction telephone 2 in response to a simultaneous write request to the RAM circuit 64.

In the present embodiment, the personal computer 1 writes necessary screen information in the screen memory 6 while performing processing based on a software program or data stored in the memory 14 such as a magnetic disk device or input from the keyboard 11. Further, the digital multi-function telephone 2 is controlled by the built-in microprocessor 25, and the exchange (PB
The control data sent from the digital line connected to (X) 5 is recognized, necessary calculation is performed, display information is created, and this is written in the screen memory 6. The screen information and the display information written in the RAM 64 of the screen memory 6 are
It is read by the display device control device 5 via the bidirectional buffer 61 and displayed on the display device 4.

Here, it is assumed that the personal computer 1 is operating the software program of the word processor.
The display device 4 displays a screen based on a word processor software program. In this state, when an incoming call is received by the digital multifunctional telephone 2, the digital multifunctional telephone 2 creates a screen of display information indicating the incoming call and writes it in the screen memory 6. The screen showing the incoming call does not need to use the entire display surface of the display device 4, and displays the calling party number and the like in a so-called window format. Thus, the incoming call is displayed on the screen of the word processor of the display device 4 as a window.

Furthermore, the same applies when making a call, and the personal computer 1
It is possible to display incoming / outgoing calls without depending on the software program of.

FIG. 2 is a block diagram showing a second embodiment of the composite terminal device according to the present invention.

A screen memory 7 is an example in which a register 72 and a shift register 73 are used as a screen information storage element. Reference numeral 71 is a selector for selecting which of the screen information of the personal computer 1 or the display information of the digital multifunctional telephone 2 is to be written in the register 72 and the shift register 73 of the screen memory 7.

〔The invention's effect〕

As described above, the present invention writes the screen information of the personal computer and the display information of the digital multi-function telephone in the triple port type screen memory so as not to collide with each other, and displays the screen information and the display information written in this screen memory. Since it is displayed on the device, the screen information and the display information of both can be displayed on the display device at the same time without depending on the software program running on the personal computer unit, and the display information of the digital multifunction telephone can be displayed on the personal computer. Since they are independent of each other, there is an effect that the display information can be displayed even when the power of the personal computer is turned off.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of a composite terminal device according to the present invention, FIG. 2 is a block diagram showing a second embodiment of the present invention, and FIG. 3 is a block diagram showing a conventional embodiment. Is. 1 ... Personal computer, 2 ... Digital multifunctional telephone, 3 ... Display device control device, 4 ... Display device, 5
…… Exchange (PBX), 6,7 …… Screen memory, 11 …… Keyboard, 12 …… Interface circuit, 13 …… Microprocessor, 14 …… Memory, 15 …… Controller, 21 …… Key pad, 22 …… Analog input / output circuit, 23 ... Codec, 24 ... Interface circuit, 25 ... Microprocessor (CPU), 26 ... Memory, 61-63 ... Bidirectional buffer, 64 ... RAM circuit (RAM) , 65 …… arbiter circuit, 71 …… selector, 72 …… register, 73 …… shift register.

Claims (1)

[Claims] 1. A personal computer, a digital multi-function telephone, and screen information of the personal computer is input and written from a first port in response to a write request from the personal computer, and display information of the digital multi-function telephone is written in the digital. A screen memory for inputting and writing from the second port in response to a write request from the multi-function telephone, and reading the written screen information and the display information from the third port, and the screen memory of the screen information and the display information. Memory information selection circuit that selects any one of the above information and writes it to the screen memory when there is a simultaneous write request to the screen memory, a display device that displays the screen information and the display information, and a third device of the screen memory. Before reading the screen information and the display information from the port Compound terminal apparatus; and a display device controller for displaying on the display device.