GB2308784A

GB2308784A - Computer telephony

Info

Publication number: GB2308784A
Application number: GB9626799A
Authority: GB
Inventors: Dong-Youl Lee
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 1995-12-23
Filing date: 1996-12-23
Publication date: 1997-07-02
Anticipated expiration: 2016-12-23
Also published as: GB9626799D0; GB2308784B; KR970056515A; KR0154714B1

Description

COMPUTER TELEPHONY INTEGRATED MODULE SYSTEM Background to the Invention The present invention relates to an computer telephony integrated module system for controlling a telephone and peripheral devices through a computer.

Digital telephones, modems (or facsimiles) and personal computers (PCs) may be connected to a digital simple exchange system and thus their respective functions can be performed independently of one another. When a modem (or facsimile) and the PC are connected to a digital extension, the modem and the PC are connected via an additional interface module.

Accordingly, as described above, the digital telephone, the modem (or facsimile) and the PC are connected to the digital simple exchange system. Therefore, if the user wishes to use the modem (or facsimile) while the digital telephone is on-line, it is necessary for the user to set the modem to use an alternative modem port.

The present invention is directed to an improved computer telephony integrated module system. An objective of the present invention is to provide a computer telephony integrated module system which can connect peripheral devices to one another without using an additional modem port.

Summary of the Invention Accordingly, the present invention provides a computer telephony integrated module system, for interfacing a computer, an analogue telephone and a peripheral device to a digital simple exchange system, comprising: a CPU, a computer interface unit, a digital telephone interface unit and an analogue telephone interface unit; means for receiving two audio channel signals and a data channel signal from the digital simple exchange system, supplying the data channel signal to the CPU, supplying a first one of the two audio channel signals to the digital telephone interface unit, converting the other of the two audio channel signals into an analogue signal and supplying the analogue signal to the analogue telephone interface unit; and means for supplying a data channel signal from the CPU to the computer interface unit.

Preferably, the system comprises a first controller for receiving the audio and data channel signals from the digital simple exchange system, dividing the signals into a first audio channel signal, a second audio channel signal and the data channel signal and supplying the data channel signal to the CPU. The system may also comprise a second controller for supplying the first audio channel signal to the digital telephone interface unit in response to a control signal from the CPU.

The first controller and/or the second controller may comprise a digital adapter subscriber for loops (DASL).

Preferably, the system comprises a third controller for converting the second audio channel signal to an analogue signal and supplying the analogue signal to the analogue telephone interface unit in response to a control signal from the CPU.

The third controller may comprise: a CODEC for supplying the second audio channel signal to the analogue telephone interface unit in response to a control signal from the CPU; means connected between the CPU and the analogue telephone interface unit for generating a ring signal; and a hook sensor connected between the CPU and the analogue telephone interface unit, for sensing a hook on/off state.

Brief Description of the Drawings The present invention will now be described by way of example with reference to the accompanying drawings, in which: FIG. 1 is a block diagram of the computer telephony integrated module system.

Detalled Description of the Preferred Embodiment In the computer module system 21 shown in FIG. 1, a power supplier 11 receives two audio channel signals 2B and a data channel signal D via a digital simple exchange system 10. A first DASL (digital adapter subscriber for loops) 12 receives the two audio channel signals 2B and the data channel signal D via coils N1 and N2. A second DASL 13 which is connected to the first DASL 12, transmits one audio channel signal 1B to a digital telephone interface unit 18.

A CODEC (coder-decoder) 15 converts another audio channel signal 1B to an analogue signal and connects it to an analogue telephone interface unit 19. A ringer 16 supplies a ring signal to the general telephone interface unit 19.

A PC interface unit connects a data channel signal D2 to a PC. A CPU 14 controls the aforementioned operations. In addition, the computer module system 21 further includes: a power supplier 11 which receives a power-supply from the digital simple exchange system 10, generates a necessary voltage, and provides the power-supply to both the digital telephone and the general telephone; and a hook sensor 17 of the general telephone.

The way in which the digital telephone, the analogue telephone and the computer are interfaced will now be described. The first DASL 12 receives two audio channel signals 2B and the data channel signal D from the digital simple exchange system 10, connects one audio channel signal 1B to the digital telephone through the second DASL 13 (i.e., through a digital telephone interface unit 18), and forms a voice path. The first DASL 12 transmits another audio channel signal 1B from the first DASL 12 to the CODEC 15. Accordingly, the signal 1B is converted to an analogue signal in the CODEC 15, and is then connected to an audio signal of the analogue general telephone (through a general telephone interface unit 19), thus forming a voice path of the analogue telephone.

Data commands exchanged between the digital simple exchange system 10 and the computer telephony integrated module system 21 use the data channel signal D. The first DASL 12 receives the two audio channel signals 2B and the data channel signal D, and connects the data channel signal D to the CPU 14. Furthermore, data command exchange between the computer telephony integrated module system 21 and the digital telephone interface unit 18 is achieved by the second DASL 13 using a data channel signal D1 generated by the CPU 14.

The ringer 16 generates a ring signal for the general analogue telephone. The hook sensor 17 connected between the CPU 14 and the telephone interface unit 19 detects whether the general telephone is in a hook on or hook off state.

To achieve communication between the computer telephony integrated module system 21 and the PC, data from the CPU 14 is converted into a RS-232C signal and the CPU 14 is then connected to the PC. The CPU 14 controls all the aforementioned operations.

The modem or the facsimile is connected to a general telephone port. As a result, for communication, a general telephone call uses the digital telephone and document or other data exchange uses the modem or the facsimile. In this case, the overall call control is achieved by using the PC, so that the office call environment can be conveniently improved.

As described above, the present invention connects peripheral devices without using an additional modem port.

Furthermore, the present invention connects a digital telephone, a modem (or a facsimile) and a PC, to one module, so that a call can effectively be controlled using the PC. In addition, the PC controls the calls in the present invention, which is more convenient.

Claims

CLAIMS:

1. A computer telephony integrated module system, for interfacing a computer, an analogue telephone and a peripheral device to a digital simple exchange system, comprising: a CPU, a computer interface unit, a digital telephone interface unit and an analogue telephone interface unit; means for receiving two audio channel signals and a data channel signal from the digital simple exchange system, supplying the data channel signal to the CPU, supplying a first one of the two audio channel signals to the digital telephone interface unit, converting the other of the two audio channel signals into an analogue signal and supplying the analogue signal to the analogue telephone interface unit; and means for supplying a data channel signal from the CPU to the computer interface unit.

2. A system according to claim 1 comprising a first controller for receiving the audio and data channel signals from the digital simple exchange system, dividing the signals into a first audio channel signal, a second audio channel signal and the data channel signal and supplying the data channel signal to the CPU.

3. A system according to claim 2 comprising a second controller for supplying the first audio channel signal to the digital telephone interface unit in response to a control signal from the CPU.

4. A system according to any claim 2 or claim 3 in which the first controller and/or the second controller comprises a digital adapter subscriber for loops (DASL).

5. A system according to any one of claims 2-4 comprising a third controller for converting the second audio channel signal to an analogue signal and supplying the analogue signal to the analogue telephone interface unit in response to a control signal from the CPU.

6. A system according to claim 5 in which the third controller comprises: a CODEC for supplying the second audio channel signal to the analogue telephone interface unit in response to a control signal from the CPU; means connected between the CPU and the analogue telephone interface unit for generating a ring signal; and a hook sensor connected between the CPU and the analogue telephone interface unit, for sensing a hook on/off state.

7. A computer telephony integrated module system substantially as illustrated in or described with reference to the accompanying drawings.