JPS60123177A - Television incorporating computer function - Google Patents

Abstract

PURPOSE:To save the energy within a circuit as well as the space of a room by giving the switching control to the sounds, Y signals, synchronizing signals, etc. of a TV and a personal computer. CONSTITUTION:A TV/personal computer switching control circuit 37 contains a sound changeover switch 38 which switches the sounds between the TV and the personal computer by pins 1, 2 and 15, a Y signal changeover switch 39 which switches Y signals sent from the TV and the personal computers via a picture quality control circuit by pins 3-5, and a synchronizing signal changeover switch 40 which switches horizontal or vertical synchronizing signals sent from the TV and the personal computer by pins 12-14. These switches 38-40 are switched with the input signals of pins 9-11 respectively. Therefore a TV, a display monitor and a personal computer can be formed in a single body. This saves the energy within the circuit as well as the space in a room. Furthermore no shift is produced between both video screens of the TV and the personal computer with no need for size control.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a television with a built-in computer function that can be used as both a television and a personal computer.

In more detail, the high-quality TV itself has a computer CPU board (MSX BASIC) built in separately from the TV signal reproduction circuit board (4) and can be used not only as a regular TV, but also for learning, game TV, and home use. The present invention relates to a television with a built-in computer function that can be used as a multifunctional personal computer such as a computer, and particularly to a circuit for switching and controlling the television and the personal computer.

An embodiment of the present invention will be described based on the drawings.

In Figure 1, (1) is a high-quality television body, and the front of this television body (1) has a mask pitch of 0.5 mm.
A fine pitch cathode ray tube (2) is provided.

On the right side of this cathode ray tube (2), a power switch/volume adjustment button (3) is provided, as well as a ROM cartridge (
4) is formed with an insertion port (5).

In addition, in the lower part of the front of the TV main body (1), there are TV channel changeover switches (6) (6), a TV and computer mode changeover switch (7), and a rotor switch (8) for changing the computer. , run switch (9),
A reset switch (10), a speaker (11), etc. are provided. Furthermore, in the lower part of the front of the television body (1), there is a joystick (1,
2) The connectors (1, 3) (13) of (12), the connector (15) of the cassette data recorder (14), and the connector (17) of the keyboard (J6) are provided. , a connector (not shown) for a printer (18) is provided. In addition, two joysticks (12) (
There are four storage compartments (20) for storing 12) when not in use.
) (20) is provided. In addition, the TV itself (
1), an analog signal processing circuit board (21) for TV signal processing and TV/PC switching control is installed horizontally below the cathode ray tube (2). The car 1 to the rigid insertion port (5) are separated and independent from the processing circuit board (21).
BASTCROM, RAM, CPU, and various 1 for digital signal processing of the personal computer are located vertically behind the
A digital signal processing circuit board (22) including 10 circuits or the like is provided.

The cartridge (4) is composed of a ROM cartridge storing programs for learning, video games, home computers, etc., and expansion R and AM.

Next, the specific electric circuits of the television circuit board (21) and the personal computer circuit board (22) are constructed as shown in FIG. In FIG. 2, (23) is a television antenna, and this antenna (23) is connected to an intermediate frequency amplification/AGC-AFT circuit (24) via a tuner circuit (24).
25), and the audio signal is supplied to a speaker (28) via an audio intermediate frequency amplification/detection circuit (26) and a low frequency amplification circuit (27).

Note that the audio intermediate frequency amplification/detection circuit (26) is.

Consists of a limiter, low-pass filter, detection circuit, attenuator, and drive circuit, such as μPCl382c
type of IC is used. (29) is 1-IA11431
This color signal processing circuit consists of a type IC and performs processing such as ACC color killer, band amplification, color demodulation, and color synchronization. Specifically, the first band amplification circuit, burst gate, ACC detection circuit, gate pulse correction circuit, color control circuit, killer detection circuit, tint control circuit, APC detection circuit, 3.58MHz oscillation circuit,
It is equipped with a color demodulation circuit, an image quality control circuit, a contrast control circuit, a pedestal clamp circuit, a bright control circuit, and a video amplification circuit. At the subsequent stage of this color signal processing circuit (29), there is a TA767S
Color switching/matrix circuit consisting of AP type IC (3
0) are combined, and further an R, G, B amplifier circuit (31
) (32) is coupled to the cathode ray tube (2) via (33).

Next, (34) is a selector provided on the front of the TV main body (1), and this selector (34) includes the TV channel changeover switch (6) (6), the mode changeover switch (7), It is equipped with a load switch (8), a run switch (9), and a reset switch (10).

Of these, the funnel, run and reset switches (
8) (9) and (10) are connected to the digital signal processing circuit board (22) of the personal computer via various 110 circuits. This digital signal processing circuit board (22)
has a CPU, BAS ICROM, RAM, various 110 circuits, etc., and the cartridge (4) is detachably connected to this circuit board (22) via a connector (36). In addition, a TC4053BP type I is installed after the digital signal processing circuit board (22).
A television and personal computer switching control circuit (37) consisting of C is provided. This switching control circuit (37) has 1.2
and an audio selector switch (38) that switches between the TV and computer audio at pin 15; Signal changeover switch (39)
, 12. The 13th and 14th pins constitute a synchronization signal changeover switch (40) for switching the horizontal or vertical synchronization signal provided from the television and the personal computer, and 9.1
Each switch (38) with the input signal of pin 0 and 11
(39) and (40) are switched.

(41) is a vertical/horizontal circuit consisting of an HA11423 type IC. This circuit (41) specifically includes a synchronous separation circuit, a phase detection circuit, a horizontal oscillation circuit, a vertical trigger circuit, a vertical oscillation circuit, a vertical amplification circuit, and a blanking circuit. The output side of this vertical/horizontal circuit (41) is coupled to the cathode ray tube (2) via a horizontal output circuit (42) and a vertical output circuit (43).

(44) is a stabilized power supply circuit composed of a DC-DC converter, and this stabilized power supply circuit (44) is a transformer (44).
5) It is a completely insulated cool chassis type.

A transistor (46) is connected to the secondary side of this transformer (45).
), the base of this transistor (46) is connected to the mode changeover switch (7), and the emitter is connected to the digital signal processing circuit board (22) as a +5-power supply.

Note that the 112V and -1,2V power supplies of this digital signal processing circuit board (22) are connected to the secondary side of the high voltage circuit (47) of the horizontal output circuit (42) or to the transformer (45).
It is introduced from the secondary side of. The stabilized power supply circuit (44)
The secondary output of the transformer (45) is +5V, +12V, -1 to the digital signal processing circuit board (22).
In addition to 2V, it is supplied to the audio low frequency amplification circuit (27) and the horizontal and vertical output circuits (42) (43). Also,
The secondary side of the high voltage circuit (47) of the horizontal output circuit (42) is connected to the digital signal processing circuit board (22).
In addition to -12V and -12V, there is a heater power supply for the cathode ray tube (2), a focus power supply, a screen power supply, a high voltage power supply 13, a tuner (24), and each IC (26) (2!)
(30) (37) (41), etc., are supplied to R, G, B amplifier circuits (31), (32), and (33).

Next, the present invention will be explained in detail.

First, when acting as a television, the switching control circuit (37
) changeover switches (3g) (39) (40) are connected to the TV side (TV), so audio is transmitted from pin 5 of the audio intermediate frequency amplification/detection circuit (26) to the changeover control circuit (37). It is returned to the 4th pin of the circuit (26) via the 2nd pin of the switch, the selector switch (38), and the 15th pin, and then is amplified by the low frequency amplifier circuit (27) via the 2nd pin and then output to the speaker (2).
8) Outputs audio. The composite video signal is input to the intermediate frequency amplification/AG C-A F T circuit (25); 6j Rough'J-7- signal processing circuit (29), and
6. Color switching and matrix circuit (3
0) 20.21@Pin manually. In addition, the Y signal of the TV is input to the 27th pin of the color signal processing circuit (29), the image quality controlled signal is output from the 26th pin, and the 5th pin of the switching control circuit (37) Switch (39), 222 of circuit (30) via pin 4
Force the number bin, control the con (~ras),
The video is amplified and output from pin 19 to pin 5 of the circuit (30). Synchronization signal is intermediate frequency amplification/AGO-AFT
Pin 12 of the switching control circuit (37) from the circuit (25),
It is input to the 10th pin of the vertical/horizontal circuit (41) via the changeover switch (40) and the 14th pin. In this way, R, G, and B signals are output from the color switching/matrix (30) and sent to the cathode ray tube (2).
The horizontal output is also utilized for high voltage and deflection to the cathode ray tube (2).

Next, the case where it is used as a game TV will be explained.

(1) Connect the joystick (12). Next, when using the cartridge (4), turn off the power button (3), insert the cartridge (4) into the cartridge insertion slot (5), and turn on the power button (3). Here, press the mode selector switch (
7) is connected to the personal computer side (PC), the 1-transistor (46) is turned on, +5V power is supplied to the digital signal processing circuit board (22), and at the same time 9. 10. Switching signal is input to pin 11,
Changeover switch (38) (39) (All II (J) switches to the PC side (PC), and the run switch (9)
The program is executed by the command.

(2) When using the cassette data recorder (14) RO
Remove the M cartridge (4), connect the cassette data recorder (14), turn on the power button (3), and turn on the mode changeover switch (7). Turn on the load switch (8),
Insert a cassette tape into the cassette data recorder (14
) Press the play button. Then, the personal computer reads the program from the cassette data recorder (14).

After loading is complete, turn on the run switch (9),
Change to the game screen and play the game.

(3) When used as a personal computer, a keyboard (16) is connected and various inputs are made from the keyboard (16).

(4) When using the printer (18), the printer (18)
RAS entered from the keyboard (16) by combining
Prints IC programs, execution results, data, etc.

To explain in more detail using the circuit shown in FIG.
Contrast control is performed by inputting the video signal to the 22nd pin of the color signal processing circuit (29) via the 1st pin, and the video signal is input to the 13th pin, the selector switch (40), and the 14th pin of the switching control circuit (37). Vertical and horizontal circuits (41
) and performs processing such as synchronization separation, vertical/horizontal separation, etc.
43) and is used for the cathode ray tube (2) and deflection device. The R-Y and B-Y signals are input to pins 23 and 24 of the color switching/matrix circuit (30). There is a mode selector switch (7) on pin 1 of this circuit (30).
Since the control signal is input by switching the signal, this circuit (30) switches from the TV signal to the signal from the computer, etc., and matrix-converts it into R, 'G, and B signals together with the Y signal. , B amplifier circuit (31) (32)
(33) and is sent to the cathode ray tube (2). The audio signal is transmitted from the circuit board (22) to one of the switching control circuits (37).
It is input to pin No. 4, passes through the changeover switch (38) and pin No. 15, and is input to pin No. 4 of the audio intermediate frequency amplification/detection circuit (26).
27), and the audio is output from the speaker (28). In addition, the mode selector switch (7) and run switch (9)
) and reset 1 switch (10) on the TV main unit (1
), and the insertion slot (5) for the cartridge (4)
It may be provided inside the cartridge (4) and turned on and off in conjunction with the insertion or removal of the cartridge (4).

The present invention is constructed as described above, and switches and controls the audio, 1 signal, synchronization signal, etc. of the television and pan controller, so that it has the following effects.

(1) A single product can be a combination of a TV, display monitor, and computer, saving energy in the circuit and saving space in the room.

(2) Since the television and personal computer are integrated and have a switching control circuit, there is no misalignment between the two video screens and no size adjustment is required. That is, bright contrast adjustment, synchronization W8 adjustment, etc. are switched to the TV side when using a television, and to the personal computer side when using a personal computer, using a switching control circuit, so no adjustment is required at all.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a television with a built-in computer function according to the present invention, and FIG. 2 is an electric circuit diagram of a television signal processing circuit board and a personal computer signal processing circuit board. (1)...TV body, (2)...Cathode ray tube, (
4) Memory cartridge, (5) Cartridge insertion slot, (7) Mode 1 selector switch, (8
)...Load switch, (9)...Run switch,
(10) Reset switch, (21) Television signal processing circuit board, (22) Digital signal processing circuit board. Applicant: General Co., Ltd.

Claims (2)

[Claims] (1) A television signal processing circuit is installed inside the television body,
The TV body has a computer signal processing circuit and a switching control circuit, and the television body is provided with a cartridge insertion slot for inserting a memory cartridge from the outside and connecting it to the computer signal processing circuit. The circuit includes a CPU, BASIC ROM, RAM, various I10s, etc., and the switching control circuit includes an audio signal changeover switch for the TV and a computer, and a TV Y whose image quality is controlled.
The color switching circuit has a changeover switch between the signal and the Y signal of the computer, and a switch for changing the synchronization signal between the TV and the computer, and the color changeover circuit has a changeover switch that changes the color signal between the TV and the computer, and the computer side of each of the changeover switches is A television with a built-in computer function, characterized in that it supplies power to a computer in conjunction with switching to a computer. (2) The television with a built-in computer function according to claim 1, wherein the switching control circuit is configured to be switched in conjunction with the operation of a mode changeover switch provided on the television body and for switching between the mode of the television and the personal computer.