KR19980014862U - Monitor circuit with built-in telephone function - Google Patents

Abstract

The present invention is a monitor control circuit including a monitor unit 20 for driving a monitor by receiving a synchronization signal and a video signal output from the computer unit 10, the telephone operation using the telephone signal input from the trunk line switch The telephone unit 30 performs the incoming call signal from the telephone unit 30 and detects an incoming signal ringing, or the incoming call message is displayed on the monitor of the monitor unit 20 so that a telephone call can be made. There is a feature that further includes a microcomputer unit 40 to enable control.

Therefore, the present invention has an effect that the user can use the computer more conveniently because the user can easily make a phone call without interrupting the computer operation when a call is received while using the computer.

Description

Monitor circuit with built-in telephone function

The present invention relates to a monitor of a computer system, and relates to a monitor having a built-in telephone function in the monitor so that incoming calls can be displayed on a bell or a monitor with a predetermined mark so that calls can be sent and received smoothly. .

In general, computers are becoming more versatile than the functions of calculators that have only simple arithmetic and logical operations functions, and expanded to I / O devices to control machines, factories, and society as a whole. For example, technologies such as audio, video, TV, game consoles, and communication devices, which were completed separately from computers, tend to be integrated into computers. As such, a computer having various functions such as audio, video, TV, game machine, communication device, etc. is called a multimedia computer.

With the recent expansion of such multimedia computers, computers are replacing household appliances. For example, compact disc players and audio devices function in multimedia computers. ) Is rapidly replacing the existing VTR. In addition, the widespread use of digital satellite broadcasting will allow computers to perform traditional radio and satellite TV functions. As described above with reference to the accompanying drawings, a conventional speaker-embedded monitor that incorporates a speaker for processing sound signals in a multimedia computer that is becoming more versatile as follows.

1 is a block diagram illustrating a generally used multimedia computer. When a program having image data and sound data is executed, a video control signal is received by processing a command for executing a program having image data and sound data. A central processing unit (CUP) 11 for outputting a signal and a sound control signal signal and a control signal output from the CUP 11 to receive an image signal (R, G, B). A video card 12 for outputting a sound signal, a sound card 13 for receiving sound control signals output from the CPU 11, processing sound data of a program having image data and sound data, and outputting a sound signal; A video preamplifier 21 which receives the video signals R, G, and B output from the video card 12 and amplifies them to a predetermined level; The video output amplifier 22 which finally amplifies and outputs the video signals R, G, and B output from the pre-amplifier 21, and the video signals R, G, and B output from the video output amplifier 22. A cathode ray tube (hereinafter referred to as a CRT), a sound amplifier 30 that receives and amplifies a sound signal output from the sound card 13, and the sound amplifier 30 from the sound amplifier 30. It is composed of speakers that output the sound signal.

The operation according to this is as follows.

Recently, many programs having video data and audio data, such as games, have been produced using a computer, and when such programs are executed by the CPU 11 in the computer main body 10, the video card is executed by the input execution command. The control signal signal of (12) and the control signal signal of the sound card 13 are generated. The control signal of the video card 12 and the control signal of the sound card 13 output from the CPU 11 are applied to the video card 12 and the sound card 13, respectively.

The video card 12 receiving the video card control signal signal applied from the CPU 11 processes the image data to output the image signals R, G, and B. The video preamplifier 21 in the monitor 20 receiving the video signals R, G, and B output from the video card 12 amplifies and outputs the video signals R, G, and B to a predetermined level. . The video output amplifier 22, which has received the video signals R, G, and B output from the video preamplifier 21, is finally amplified and applied to the CRT. The CRT receiving the image signals R, G, and B applied from the video output amplifier 22 outputs the image signals R, G, and B.

In addition, the sound card receiving the control signal signal of the sound card 13 output from the CPU 11 processes the sound data and outputs the sound signal. The sound signal output from the sound card is amplified by the sound amplifier 30 to output the sound signal through the speaker.

The conventional multimedia computer having the above-described configuration and operation is equipped with a phone function in the computer main body as shown in FIG. 2 in accordance with the functions of the multimedia requiring various functions. However, many problems appeared while using the computer.

FIG. 2 is a block diagram generally illustrating an internal circuit of a monitor incorporating a telephone circuit, and receives an incoming call signal input from an image and a trunk line exchanger not shown, outputs a telephone signal, and processes a program having sound data. A central processing unit (CUP) 11 that outputs a video control signal signal and a sound control signal signal, and a control signal output from the CUP 11 are applied to receive an image signal (R, G). And a video card 12 for outputting a B and a sound card 13 for receiving a sound control signal output from the CPU 11 and processing sound data of a program having image data and audio data to output a sound signal. ), A telephone circuit 14 for outputting a telephone call signal output by the control of the CPU, a telephone call signal output from the telephone circuit 14, and the ratio. The monitor according to the horizontal synchronizing signal H-SYNC and the vertical synchronizing signal V-SYNC applied with the horizontal synchronizing signal H-SYNC and the vertical synchronizing signal V-SYNC output from the video card 12. A microcomputer 23 that outputs an OSD gain signal according to a screen control signal and an On Screen Display (OSD) data, an OSD gain signal output from the microcomputer 23, and the video card 12. The video preamplifier 21 receives the video signals R, G, and B outputted from the video preamplifier 21 and amplifies them to a predetermined level, and the video signals R, G, and B selectively output from the video preamplifier 21. And a video output amplifier 22 for finally amplifying the OSD signal, and a cathode ray tube for displaying the video signals R, G, and B and the OSD signal output from the video output amplifier 22. And a sound signal output from the sound card 13 A sound preamplifier 31 which receives and amplifies to a predetermined level, a sound output amplifier 32 that receives and amplifies the sound signal output from the sound preamplifier 31, and outputs it from the sound output amplifier 32. It is composed of a speaker that receives the output sound signal.

The operation according to this is as follows.

Recently, many programs having video data and audio data, such as games or moving picture programs, have been produced using a computer. When such a program is executed, the CPU 11 in the computer main body 10 receives an execution command and receives an image signal through the video card 12, the sound card 13, and the telephone circuit 14 by the input execution command. (R, G, B) and sound signal and incoming call signal are output.

Among them, the video card 12 that receives the image signal data output from the CPU 11 processes the image data to output the image signals R, G, and B. The video preamplifier 21 in the monitor 20 receiving the video signals R, G, and B output from the video card 12 amplifies and outputs the video signals R, G, and B to a predetermined level. . At this time, the video card 12 outputs the horizontal synchronizing signal H-SYNC and the vertical synchronizing signal V-SYNC for synchronizing the image signals R, G, and B. The horizontal synchronizing signal H-SYNC and the vertical synchronizing signal V-SYNC are output from the microcomputer 23 in the monitor 20.

The microcomputer 23 receiving the horizontal synchronizing signal H-SYNC and the vertical synchronizing signal V-SYNC and the incoming call signal from the telephone generates and outputs a control signal of the monitor screen according to the pre-stored data to output the video preamplifier 21. To be applied. The video preamplifier 21 receiving the OSD gain signal receives the image signals R, G, and B applied from the video card 12.

The video preamplifier 21 receiving the OSD gain signal and the image signal R, G, and B signals may amplify and output the image signals R, G, and B to a predetermined level. As such, the OSD gain signal and the image signals R, G, and B output from the video preamplifier 21 are finally amplified and output through the video output amplifier 22. In this case, the video signals R, G, and B and the OSD signal output from the video preamplifier 21 are selectively output according to the OSD selection signal.

For example, when the OSD selection signal is applied to the video preamplifier 21, the video preamplifier 21 outputs the OSD signal. In this way, the OSD signal output from the video preamplifier 21 is finally amplified through the video output amplifier 22 and displayed on the monitor. The OSD signal is displayed on the monitor so that the user can view the OSD screen and control the screen state of the monitor. On the contrary, if the OSD selection signal is not applied, the video preamplifier 21 outputs the image signals R, G, and B. The video output amplifier 22, which has received the video signals R, G, and B output from the video preamplifier 21, is finally amplified and displayed on the monitor.

On the other hand, the sound card 13 receiving the sound data output from the CPU 11 processes the sound data as a sound signal and outputs the sound signal. In addition, the telephone circuit 14 receiving the incoming call signal output from the CPU outputs the telephone signal as sound. The incoming signal output from the telephone circuit 14 and the sound signal output from the sound card 13 are amplified to a predetermined level through the sound preamplifier 31. The sound signal amplified to a predetermined level through the sound preamplifier 31 is finally amplified and output through the sound output amplifier 32. The sound signal output through the sound output amplifier 32 outputs a sound signal through the speaker.

A computer with a built-in conventional phone function having the configuration and operation as described above can always perform only a certain function.

For example, suppose a call occurs or a call is made while using the computer, where the user interrupts the work and goes to the place where the call is placed to answer the call, or when making a call, There is a problem that the computer system installation area is excessively occupied by searching for a computer file in an uncomfortable posture with the earpiece of the ear or having a separate speaker.

The present invention has been devised by the above problems, and an object of the present invention is to incorporate a telephone function into a monitor of the computer system, which enables the transmission and reception of a call even when the computer is in use. The present invention provides a monitor circuit having a built-in telephone function that can be recognized as an incoming call indication and that a telephone can be made through a telephone, handset, and key board provided in a computer.

1 is a block diagram showing an internal circuit of a multimedia computer generally used;

2 is a block diagram showing an internal circuit of a multimedia computer incorporating a telephone function used in the prior art;

3 is a block diagram showing an internal circuit of a multimedia computer incorporating a telephone function according to the present invention;

4 is a cancellation circuit diagram according to an embodiment of FIG. 3;

5 is a flowchart according to the embodiment of FIG. 3.

Explanation of symbols on the main parts of the drawings

10: computer unit 20: monitor unit

30, telephone circuit section 40: microcomputer section

41: microcomputer 42: key switch circuit

50: OSD Circuit 51: OSD KEY

52 dial circuit 53 bell integrated circuit

54: Fig. Speaker 55: Song, handset

60: audio system 70: EP ROM

T1, T2: matching transformer C1 to C3: capacitor

R1, R2: Resistor ZD1, ZD2: Zener Diode

V: Varistor LA, LB: Coil

SW1, SW2: Switch L1, L2: Trunk Line

3 is a block diagram of a monitor circuit incorporating a telephone function in a monitor of a computer system, and outputs a vertical synchronization signal, a horizontal synchronization signal, a video signal, and the like to the monitor unit 20. In the general monitor control circuit including a unit 10 and a monitor unit 20 for receiving an output signal from the computer unit 10 and driving the monitor, a telephone circuit 30 connected to a trunk line exchanger (not shown). ), And outputs a predetermined control signal to the monitor unit 20 so as to adjust vertical, horizontal size and geometric distortion, and also detects an incoming signal of the telephone circuit 50, and an OSD unit connected to an output terminal ( 50, the audio system 60, the microcomputer unit 40 which controls the EP ROM 70 to make a telephone call, and a signal output by the processing result processed by the microcomputer unit 40 temporarily.The audio system unit 60 receives the EP ROM unit 70, the audio signal output from the micom unit 40, and outputs the audio signal to the speaker, and the image output from the micom unit 40. OSD unit 50 for processing signals and outputting image gain signals R, G, and B, OSD-KEY unit 51 for controlling the OSD unit 50, and OSD unit 50 for processing The video preamplifier 80 receives and amplifies the received video signals R, G, and B, and the video output amplifier 90 receives the output signal of the video preamplifier 80 and outputs the same to the monitor. It is configured to include more.

A detailed circuit diagram showing an embodiment of a monitor incorporating the telephone function configured as described above is described in detail in FIG.

The monitor unit 20 has a vertical synchronization signal (V-SYNC) and a horizontal synchronization signal (H-SYNC) input from the computer unit 10, the synchronization signal (H-SYNC) (V-SYNC) is positive It is connected to the synchronization signal processing unit 21 for converting to (POSITIVE), the output terminal of the synchronization signal processing unit 21 is connected to the vertical deflection circuit 22 and the horizontal deflection circuit 23. In addition, the video image signals R, G, and B input from the computer unit 10 are input to the video preamplifier circuit 80, and an output terminal of the video preamplifier circuit 80 is a video output amplifier circuit. 90, and the output terminal of the video output amplifier circuit 90 is connected to the monitor (CRT).

In addition, the preamplifier circuit 120, the volume circuit 130, the main amplifier circuit 140 and amplifies and outputs the audio signal output from the audio system 60 connected to the output terminal of the microcomputer 41 and In the conventional amplifier circuit consisting of a speaker, the audio input circuit 110 for receiving the audio output signal output from the audio system unit 60 connected to the output terminal of the microcomputer 41 and outputs it to the input switching circuit 100; The speaker control circuit 150 further outputs the output signal of the main amplifier circuit to the speaker.

The horizontal synchronizing signal (H-SYNC) and the vertical synchronizing signal (V-SYNC) outputted from the computer unit 10 are input to the microcomputer 41 of the microcomputer unit 10, and the telephone control function and the like are inputted. A key switch circuit 42 composed of a plurality of function switches, an EP ROM unit 70 for storing voice and signals, an OSD (On Screen Display) unit 50, and an audio system unit for outputting a voice signal ( 60 is connected to the output of the microcomputer 41. In addition, an OSD KEY 50-1 for controlling the OSD unit 50 is added, and an output terminal of the OSD unit 50 is connected to the video preamplifier unit 80 of the monitor unit 20. .

The key switch circuit 42 includes a switch for controlling the switches SW1 and SW2 of the telephone circuit 30.

The key switch circuit 42 can be realized through the key board 11.

In addition, the telephone unit 30 is a trunk line (L1) (L2) input through the trunk line exchanger not shown through the overvoltage protection varistor (V) and the protective coil (LA) (LB) of the matching transformer (T1) It is connected to the primary side T11, and the secondary side T12 of the matching transformer T1 is connected to the power supply VCC through a hook switch SW1 and a capacitor C3 at one end through an overvoltage protection zener diode ZD1. The telephone circuit 51 is connected to the other end, and the dial circuit 52 and the handset 55 are connected to the telephone circuit 51.

In addition, the hook switch SW1 is connected to the microcomputer 41 of the microcomputer 40, and is switched by the control of the microcomputer 41.

In addition, the trunk line signal input through the coil (LA) (LB) is connected to the bell drive integrated circuit 53 through a capacitor (C1) and a resistor (R1), the bell frequency to the bell drive integrated circuit 53 The resistor R2, which is a time constant for adjustment, and the capacitor C2 are coupled and connected, and an output terminal of the bell drive integrated circuit 53 is connected to a primary side T21 of the matching transformer T2, and is connected in series. (SW1) and the pitch speaker 54 are connected. The secondary side T22 of the matching transformer T2 is connected to the input terminal of the microcomputer 41 of the microcomputer 40 through an overvoltage protection zener diode ZD2, and the switch SW2 is connected to the microcomputer 41. It is connected to the output terminal of the) is configured to operate under the control of the microcomputer 41.

The dial circuit 52 can be realized through the key board 11.

Reference numeral X-TAL is an oscillator of the microcomputer 41.

Hereinafter, the operation and effects of the present invention configured as described above will be described.

First, when a computer user applies power to a computer to a monitor circuit having a built-in telephone function according to the present invention and the computer operates normally, horizontal and vertical synchronization signals (H-SYNC) (V) from the computer unit 10 are provided. SYNC) and video signals R, G, and B are output. Accordingly, the synchronization signals H-SYNC (V-SYNC) are input to the synchronization signal processing circuit 21, so that the horizontal synchronization signals H-SYNC and the vertical synchronization signals V-SYNC are switched to positive polarity. And input to the vertical deflection circuit 22 and the horizontal deflection circuit 23.

On the other hand, the vertical synchronization signal (V-SYNC) and the horizontal synchronization signal (H-SYNC) is input to the microcomputer 41 of the microcomputer unit 40, the key switch circuit 42 connected to the input terminal of the microcomputer (41) According to the input command of the microcomputer 41 performs various controls.

In such normal monitor control, when an incoming signal is input to the trunk line L1 (L2) of the telephone unit 30 through the trunk line exchanger (not shown), the signal is received by the varistor (V) and the coil (LA) (LB). Is applied to the matching transformer T1, and is simultaneously applied to the bell driving integrated circuit 53 through the resistor R1 and the capacitor C1. At this time, the bell driving integrated circuit 53 outputs a predetermined signal according to the incoming signal to the matching transformer T2, and the incoming signal is input to the input terminal of the microcomputer 41 through the matching transformer T2. According to whether the switch SW2 selected by the user through the key switch circuit 42 is operated, the microcomputer 41 performs the following two controls.

The first control is a case in which the user turns on the switch SW2 through the key switch circuit 42. In this case, the switch (by the output of the bell driving integrated circuit 53 according to the incoming signal) Through the SW2) the pitcher speaker 54 is driven to ring the bell. The user hears the ringtone and recognizes the call.

The second control is a case in which the user turns off the switch SW2 through the key switch circuit 42. In this case, the pijo speaker 54 is output by the output of the bell driving integrated circuit 53 according to the incoming signal. ) Is not driven, and through the incoming signal input to the microcomputer 41 through the matching transformer T2, the microcomputer 41 outputs a predetermined video signal indicating the incoming / outgoing state to the OSD circuit 50. .

On the other hand, the OSD unit 50 for receiving the video image signal (R, G, B) output from the microcomputer 40 to output the OSD gain signal (R, G, B) by OSD processing, and the computer unit ( A video preamplifier circuit 80 for amplifying the video signals R, G, and B output to a predetermined level, and image gain output from the video preamplifier 80 and the OSD unit 50; And a video output amplifier circuit 90 for finally amplifying the signals R, G, and B, and a monitor for receiving and displaying the video signals R, G, and B output from the video output amplifier unit 90. have.

As such, even if the computer user leaves the seat during the use of the computer, if the key switch is turned on or off, the incoming call status is displayed on the monitor or the user rings the speaker so that the call is received.

When the user detects the incoming call, the user operates the hook switch SW1 control switch provided in the key switch circuit 42 to turn on the hook switch SW1 through the microcomputer 41, and the telephone circuit ( Power supply VCC is supplied to 30 so that the telephone circuit 30 is operated so that the call can be made through the handset 55.

In addition, when the user wants to make a phone call, the user can make a phone call to a desired place through the dial circuit 52 while the hook switch SW1 is turned on and make a phone call.

Therefore, the user can selectively use a telephone call while using the computer through a transmission, handset, or speakerphone function.

6 is a flowchart illustrating a method according to the embodiment of FIG. 3.

Incoming telephone signal input through the trunk line (S1), and determining the signal received through the trunk line (S2), judging the signal received in the step (S2) and let the call Determining whether or not to output the voice (S3), and receiving the voice signal determined in the step (S3) to the speaker phone (S4), the signal determined in the step (S3) with the caller Step (S5) of making a call, determining whether to input the signals of the (S4) and (S5) to the user's PC (S6), and if not determined after the determination in the step (S6) to terminate Step (S7), and if it is also input to the computer (S8), the step (S8) after the input and terminates in the step (S8), the service voice message after determining the incoming state in the step (S2) Outputting the data into the service at step S10 and storing the service voice message at step S10. Step (S11), and if it is not determined in the step (S11) step (S12), and if it is determined also determines whether or not the message stored in the above (S10) voice or signal (S13) And ending the storage of the voice signal determined in the step S13 in the voice storage EP ROM (S14) and ending the storage of the signal determined in the step S13 in the signal storage EPROM (S15). The process proceeds to step S17.

Referring to the operation of the flow chart configured as described above, the computer user receives a telephone signal input to the monitor via the trunk line while the computer is in use (S1), and determines the incoming state displayed on the monitor service voice message Whether or not to output a call or whether to make a call with the caller (S2) and whether or not to output the signal determined in the step (S2) to the speaker phone S3 or to make a call; In the step S3 and the speakerphone step S4 for accepting the signal determined in the step S3, the handset step S5 for calling the signal determined in the step S3, (S4), and (S6) whether or not to store the signal output in the step (S5) in the computer, and (7) to terminate if not input to the computer in the step (6), and the In step (S6) If input to the computer is entered (S8) and then to the step (S9) proceeds to the step.

In addition, it is determined whether the telephone signal received through the CO line is outputted as a service voice message (S10), and the service voice message output in the step (S10) is terminated by storing (S12) or is voice? In step S13, it is determined whether the signal is a signal or whether the signal is a signal (S13), and the voice is stored in the voice storage EP RROM S14, and the signal is stored in the signal storage EP PROM S15 and then terminated ( S16, 17).

The present invention made up of the operation and configuration as described above has the effect that the user can easily make a phone call without having to interrupt the computer operation when a phone call is received while using the computer.

Claims (8)

In the monitor unit 20 which receives the synchronization signal and the video signal output from the computer unit 10 and drives the monitor, the monitor unit 20 incorporates a telephone function into the monitor to perform a telephone operation by using a telephone signal input from a trunk line switch. And a telephone unit (30) and a microcomputer (40) for detecting an incoming signal input from the telephone unit (30) to ring a bell or display a message on a monitor. The method of claim 1, The telephone unit 30 includes a hook switch SW1 for giving an operation capability to the telephone circuit 51 and the dial circuit 52, and the trunk line L1 (L2) through the resistor R1 and the capacitor C1. An output of the bell driving integrated circuit 53 connected to the microcomputer 41 of the microcomputer 40 through the matching transformer T2 and the zener diode ZD2, and the bell driving integrated circuit 53. Monitor circuit with a built-in telephone function, characterized in that it comprises a drive switch (SW2) of the fiscal speaker (54) connected to the output terminal. The method according to claim 1 or 2, The micom unit 40 turns on or off the switch SW1 or the switch SW2 of the telephone unit 30, and detects an incoming signal with a signal input through the bell driving integrated circuit 53. And a key switch circuit 42 including a switch for giving a key command to signals for driving the switches SW1 and SW2 on and off, and the output of the microcomputer 41. And a OSD circuit (50) for outputting a video signal (R, G, B) including a message for a signal to the monitor unit (20). The method according to claim 1 or 2, And a monitor circuit incorporating a telephone function, comprising an audio amplifier circuit for outputting the audio signal output from the telephone circuit as voice. The method of claim 2, wherein The microcomputer 41 turns on the switch SW2 when the switch SW2 on command is input through the key switch circuit 42 and cuts an output to the OSD circuit 50. Built-in monitor circuit. The method of claim 2 or 3, And a OSD key unit (51) for blocking input of the OSD output signal from the microcomputer (41) to the preamplifier. The method of claim 2 or 3, And the key switch circuit (42) and the dial circuit (52) can be configured in the key board (11). Receiving a telephone signal input through a trunk line (S1), determining a signal received through the trunk line (S2), and judge the signal received in the step (S2) to communicate with Determining whether or not to output the voice signal (S3), receiving the voice signal determined in the step (S3) to the speaker phone (S4), and using the signal determined in the step (S3). Step (S5) of making a call with the party, determining whether to input the signals of the (S4) and (S5) to the user's computer (S6), and ending after the determination in the (S6) step ( S7), and (9) terminating after input (8) to the computer in the step (6), and outputting a service voice message after determining the incoming state in the step (S2) (S10), In step S10, the service voice message is determined and stored in step S11, and in step S11, there is no content stored in the step. The step S12 of terminating, the step S13 of determining whether or not the message stored in step S11 is a voice or a signal, and the voice signal determined in the step S13 are stored in the voice storage EP ROM. And a step (S16, S17) of storing the signal (S14) and storing (S15) the signal determined in the step (S13) in the signal storage EP ROM.