JPH0396152A - Composite terminal equipment - Google Patents

Abstract

PURPOSE:To display information to be displayed even when power supply of a personal computer section is interrupted by storing pattern information of a personal computer and display information of a digital multi-function telephone set into a picture memory and displaying the stored picture information and the display information onto a display device. CONSTITUTION:A personal computer 1 writes required picture information into a picture memory 6 while executing the processing based on a software program and a data stored in a memory 14 such as a magnetic disk or entered from a keyboard 11. Moreover, a digital multi-function telephone set 2 is controlled by a built-in microprocessor 25 to recognize a control data sent from a digital line connecting to an exchange (PBX) 5, applies required calculation, generates display information and writes the information into the picture memory 6. Then the written picture information is read by a display device controller 5 and displayed on the display device 4. Then, even when a power supply of the personal computer 1 is interrupted, the display by the digital multi- function telephone set 2 is available.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a composite terminal device, and more particularly to a composite terminal device that integrates a personal computer and a digital multi-function telephone connected to a switchboard (PBX).

[Conventional technology]

Conventionally, as a method for simultaneously displaying screen information of a personal computer and display information of a digital multifunction telephone, display information from the digital multifunction telephone is transferred to the microprocessor (CPU) of the personal computer using a software program of the personal computer. There is a method of displaying information on a display device of a personal computer in conjunction with screen information of the personal computer.

The conventional method will be explained below using drawings. FIG. 3 shows a block diagram of a composite terminal device that combines a conventional personal computer and a digital multifunction telephone.

A personal computer 1 inputs software programs and data through a keyboard 11 or an interface circuit 12, processes information through a microprocessor 13 and memory 14, controls a display device 4 through a controller 15, and displays screen information on the personal computer 1. is displayed on a display device 4 using a liquid crystal display board, plasma display, CRT (cathode ray tube), etc. 2 is a digital multi-function telephone, and a switchboard (PBX) 5
It is connected by a digital line. The digital multifunction telephone 2 has a keypad 21, a handset, and a microphone.
Analog input/output circuits such as speakers 22. A codec (CODEC>23) that mutually converts analog signals in the analog input/output circuit 22 and digital signals used in other circuits.
, interface circuit 24. Microprocessor (CP)
U)25. It is composed of a memory 26.

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

The digital multifunction telephone 2 has a built-in microprocessor (
It recognizes the control data sent from the digital line connected to the exchange (PBX) 5, performs the necessary calculations, creates display information, and sends it to the personal computer 1. The personal computer 1 operates a software program dedicated to the digital multifunction telephone 2 to display the display information of the digital multifunction telephone 2 on the screen of the display device 4 along with the screen information of the personal computer.

[Problem to be solved by the invention]

The above-mentioned conventional multifunction terminal devices display the display information of the digital multifunction telephone on the screen through software processing of the personal computer, so it is necessary to run a software program dedicated to the digital multifunction telephone on the personal computer. However, there is a drawback that the digital multifunction telephone cannot be displayed if other software programs are running.

Furthermore, since the display is dependent on the display device and software of the personal computer, there is a drawback that the digital multifunction telephone cannot display the display when the personal computer section is powered off.

[Means to solve the problem]

The composite terminal device of the present invention includes a personal computer,
a digital multifunction telephone; means for storing screen information of the personal computer and display information of the digital multifunction telephone; and a display device for displaying the stored screen information of the personal computer and display information of the digital multifunction telephone. and a display device control device that controls the display device.

〔Example〕

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

Reference numeral 3 denotes a display device control device, which causes the display device 4 to execute screen display based on screen information stored in the screen memory 6 (including display information of the digital multifunction telephone 2). Reference numeral 6 denotes a triple port type screen memory in which screen information of the personal computer 1 and display information of the digital multifunction telephone 2 are written, and permission is given to only one of them for simultaneous write requests.

In the screen memory 6, 61 to 63 are bidirectional buffers,
64 is a RAM circuit (random access memory, RAM)
The RAM circuit 64 writes screen information of the personal computer 1 and display information of the digital multifunction telephone 2. Further, the arbiter circuit 65 grants write permission to only one of the personal computer 1 and the digital multifunction telephone 2 in response to simultaneous write requests to the RAM circuit 64.

In this embodiment, the personal computer 1 writes necessary screen information to the screen memory 6 while performing processing based on software programs and data stored in a memory 14 such as a magnetic disk device or inputted from the keyboard 11. Furthermore, the digital multifunction telephone 2 is controlled by a built-in microprocessor 25, recognizes control data sent from a digital line connected to a switchboard (PBX) 5, performs necessary calculations, and creates display information. This is written into the screen memory 6.

The written screen information is then read out by the display device control device 5 and displayed on the display device 4. Here, it is assumed that the personal computer 1 is running a word processor software program. The display device 4 displays a screen based on a word processor software program. In this state, when the digital multifunction telephone 2 receives a call, the digital multifunction telephone 2 creates a screen with display information indicating the incoming call and writes it into the screen memory 3. It is not necessary to use the entire display surface of the display device 4 for the screen indicating the incoming call, and the calling party number and the like are displayed in a so-called window format. Incoming calls are displayed in a window superimposed on the word processor screen.

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

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

7 is a screen memory, and this is an example in which a register 72 and a shift register 73 are used as storage elements for screen information. 7
A selector 1 selects which of the screen information of the personal computer 1 and the display information of the digital multifunction telephone 2 is to be written into the screen memory 7.

〔Effect of the invention〕

As explained above, the present invention stores the screen information of a personal computer and the display information of a digital multi-function telephone in a screen memory of the triple port format, and displays the memorized screen information and display information on a display device. The screen information and display information of both devices can be displayed simultaneously on the display device without depending on the software program running on the computer section.
Furthermore, since the display information of the digital multi-function telephone is independent of the personal computer, the display information can be displayed even if the power of the personal computer section is turned off.

EC), 24... Interface circuit, 25... Microprocessor (CPtJ), 26... Memory, 6
1 to 63...Bidirectional buffer, 64...RAM times f
? ! (RAM), 65...Arbiter circuit, 71...
Selector, 72... register, 73... shift register.

Claims (2)

[Claims] (1) A personal computer, a digital multifunction telephone, means for storing screen information of the personal computer and display information of the digital multifunction telephone, and a means for storing screen information of the personal computer and display information of the digital multifunction telephone stored in memory; A composite terminal device comprising a display device that displays display information and a display device control device that controls the display device. (2) The composite terminal device according to claim (1), wherein a triple port type screen memory is used as a means for storing screen information of the personal computer and display information of the digital multifunction telephone.