CN2514587Y - Three in one TV set - Google Patents

Abstract

A three-in-one TV belongs to the TV technology. It consists of a casing and a movement. It connects the video input terminal of the TV core with the video output terminal of the DVD machine core, and the audio output terminal of the DVD machine core is connected to the power amplifier through the audio signal input switching circuit of the TV core and then connected to the speaker group . It is also possible to connect the video input end of the TV movement with the video output end of the DVD machine movement, and the center, subwoofer, surround left, surround right, front left, and front left of the DVD machine movement. The front right end is respectively connected with the corresponding input end of the power amplifier and then connected with 6 loudspeakers. The movement of TV set, DVD machine and power amplifier share a casing. It integrates the functions of TV, DVD, power amplifier for watching TV, playing DVD, VCD, CD and other discs, and high-fidelity power amplifier. It has many functions, is convenient to use, and is easy to operate.

Description

3 in 1 TV

Technical field

The utility model belongs to the technical field of television sets, and more specifically relates to an improved three-in-one television set integrating a television set, a DVD and a power amplifier.

Background technique

Existing TV sets only have the basic functions of watching TV and the auxiliary functions of displaying images for digital laser disc (DVD) machines, video recorders, etc. It can watch programs broadcast by TV stations and listen to the accompanying sound, and can also be used as a display for DVD players and video recorders. But it can not replace the DVD player, directly play DVD, VCD, CD and other audio-visual discs. Nor can it replace the audio equipment and directly perform high-power and high-fidelity power amplification. This cannot but be said to be a big defective of existing television set.

Existing DVD player can directly play audio-visual product discs such as DVD, VCD, CD, but it must be connected with television set as display when using. A power amplifier can also be connected for power amplification. This type of split connection is complicated and cumbersome, and the user has to carefully identify different terminal blocks, which is inconvenient.

No. US4937672 US Patent discloses an audio converter for audio/video devices with super video recording capacity. 97122846. No. 9 Chinese patent application discloses a system and method for sending and receiving data between audio and video devices. 96101718. No. X Chinese patent application discloses a TV receiver and a PC series microcomputer display dual-purpose display. The above-mentioned patent or patent application solves the problem of establishing a direct connection or sharing a display between audio and video equipment, a TV set and a PC microcomputer. But they all do not propose a kind of technical scheme that integrates the functions of TV set, DVD, power amplifier.

The purpose of this utility model is to overcome the above-mentioned shortcomings and deficiencies, and provide a three-in-one power amplifier that integrates functions such as TV, DVD, and power amplifier to watch TV programs, play DVD, VCD, CD and other audio-visual products, and high-fidelity power amplification. a TV.

Contents of Invention

In order to achieve the above purpose. The utility model is composed of a casing and a television movement electronic circuit installed in the casing. The electronic circuit of the movement is composed of an antenna and a high-frequency tuner, an infrared remote controller, an infrared receiver and a main control microprocessor connected to it in turn, an electrically erasable programmable read-only memory (EEPROM), and a main control microprocessor and a high-frequency The luminance signal processing and chrominance decoding circuit connected to the frequency tuner, the line output, field output and display connected to the luminance signal processing and chrominance decoding circuit, and the standard switching circuit connected to the luminance signal processing and chrominance decoding circuit in sequence, AV It is composed of a conversion circuit, a two-channel audio signal input processing switching circuit, an audio power amplifier, a loudspeaker and a power supply circuit. The movement electronic circuit is also connected with the movement electronic circuit of the DVD player, and they are installed in a casing together. In this case, the TV and the DVD player are actually combined into one.

It is also possible to connect the left and right channel audio input terminals of the movement electronic circuit of the TV set with the left and right channel audio output terminals of the movement electronic circuit of the DVD player. The video input terminal of the electronic circuit of the movement of the television is cut off from the video output terminal of the electronic circuit of the movement of the DVD player. The S video input terminal of the movement electronic circuit of the TV is connected with the S video output terminal of the movement electronic circuit of the DVD player. At this time, the TV and the DVD player are still combined into one, but only connected by the S-video cable.

It is also possible to connect the video input terminal of the electronic circuit of the movement of the television with the video output terminal of the electronic circuit of the movement of the DVD player. The audio output terminal of the movement electronic circuit of the DVD player is connected with the speaker group after being connected with the power amplifier through the two-channel audio signal input switching circuit of the movement electronic circuit of the TV set. The movement electronic circuit of the TV set, the movement electronic circuit of the DVD player and the power amplifier are installed in a casing together. This connection has actually combined the TV, DVD player and power amplifier into one. It has various functions such as watching TV programs, playing DVD, VCD, CD and other audio-visual products, and high-fidelity power amplification.

It is also possible to connect the video input terminal of the electronic circuit of the movement of the TV with the video output terminal of the electronic circuit of the movement of the DVD player. The surround left, surround right, front left, and front right terminals are respectively connected to the center, subwoofer, surround left, surround right, front left, and front right input terminals of the power amplifier for 5.1-channel surround audio output. Connected with 6 loudspeakers, the movement electronic circuit of the TV set, the movement electronic circuit of the DVD player and the power amplifier of the 5.1-channel surround audio output are installed in a casing together. This three-in-one television set has the more complete multi-functionality of a 5.1-channel surround sound power amplifier, good sound quality, and convenient operation and use.

The task of the present utility model is accomplished like this.

The utility model integrates the functions of television, DVD, power amplifier for watching TV, playing DVD, VCD, CD and other discs, and high-fidelity power amplifier. It has many functions, is convenient to use, and is easy to operate. , groups, schools, enterprises and institutions and other occasions.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model.

Figure 2 is a block diagram of its principle.

Figure 3 is its logical block diagram.

Figure 4 is a block diagram of a DVD player connected to a television.

Fig. 5 is a block diagram of connecting a DVD player to a TV set with an S-video cable.

Fig. 6 is a schematic diagram of connection of a three-in-one TV set with a 5.1-channel surround sound power amplifier.

Figure 7 is a schematic block diagram of the power amplifier.

Shown in Fig. 1～Fig. 2, the utility model is made of casing 1, TV movement 2, DVD player movement 3 and power amplifier movement 4. The video input terminal of the movement 2 electronic circuit of the TV is connected with the video output terminal of the movement 3 electronic circuit of the DVD player, and the connecting line is 5 . The audio output terminal of the movement 3 electronic circuit of the DVD player passes through the two-channel audio signal input switching circuit 6 of the movement 2 electronic circuit of the TV set and the power amplifier movement 4 is connected with the speaker group by connecting lines 7 and 9 in turn 8 connections.

As shown in Fig. 3, the utility model can be operated by a single key, and two-machine identification: (1) separate TV start/standby key and DVD start/standby key are set. When the TV is on and the DVD is in standby, the TV is a standalone system. When the TV is in the power-on state, if the DVD is switched from standby to power-on, the TV will detect the working state of the DVD, and the TV will automatically enter the DVD playing state. At this time, some functions of the TV will be ineffective, such as: program exchange, AV conversion, program addition and subtraction, etc. However, the functions of adjusting volume and image effects still work. If the DVD turns from the power-on state to the standby state at this time, the TV will automatically transfer to the previous state (TV radio frequency or AV). The number keys 0-9 in the remote control are multiplex keys for TV and DVD. When the DVD is on, it is the DVD operation key. On the contrary, it is the TV operation key. (2) Set a separate power amplifier start/standby key. When the TV is on and the amplifier is in standby, the TV is a standalone system. When the TV is turned on, if the power amplifier turns from standby to power on, the TV will detect the working state of the power amplifier, and the TV will automatically enter the mute state. At this time, the TV's functions related to sound adjustment will be ineffective. Such as volume increase and decrease, sound mode, etc. But the functions for image effects still work. If the power amplifier turns from the power-on state to the standby state at this time, the power will automatically turn to the previous state. In order to realize the synchronous display of the state of the power amplifier with the TV, a single-key operation and dual-machine identification technology is adopted. That is, use one key of the remote controller to transmit two different codes. These two different codes are recognized by the TV and the power amplifier respectively. After the power amplifier is identified, the corresponding function operation is performed, and the TV performs the screen display of the corresponding function. (3) When the TV is in standby mode, the power amplifier and DVD can also be operated independently. If the TV is turned from off or standby to on at this time, the TV will detect the status of the power amplifier and DVD, and perform corresponding operations. The system can also be connected with other peripheral devices.

As shown in Fig. 4, the electronic circuit of the TV core 2 is also connected with the electronic circuit of the core 3 of the DVD player.

As shown in Fig. 5, the left and right channel audio input and output ends of the TV movement 2 and the DVD machine movement 3 and the S video input and output ends are connected one by one, and its connections are respectively 7 and 11.

As shown in FIG. 6 , the input and output video signals between the TV core 2 and the DVD player core 3 of a three-in-one TV with a 5.1-channel surround sound power amplifier are connected with a connecting line 5 . The center, subwoofer, surround left, surround right, front left, front right end output and input audio signals between the DVD machine core 3 and the power amplifier core 4 are respectively connected one by one, and the connection lines are respectively 12, 13, 14, 15, 16 and 17.

FIG. 7 is a schematic block diagram of the power amplifier core 4 .

Detailed ways

Embodiment 1. A three-in-one TV, as shown in FIG. 4 . It consists of a casing and the electronic circuit of the TV movement installed in the casing. The electronic circuit of the TV movement is also connected with the electronic circuit of the movement of the DVD player, and they are installed in a casing together. In this case, the TV and the DVD player are actually combined into one.

Embodiment 2. A three-in-one television, as shown in FIG. 5 . The left and right channel audio input terminals of the movement electronic circuit of the TV set are correspondingly connected with the left and right sound channel audio output terminals of the movement electronic circuit of the DVD player, and the S video input terminals of the movement electronic circuit of the TV set are connected with the The S-video output terminal of the movement electronic circuit of the DVD player is connected. At this time, the TV and the DVD player are still combined into one, but only connected by the S-video cable.

Embodiment 3. A three-in-one television, as shown in FIG. 2 . The video input terminal of the electronic circuit of the movement of the TV is connected with the video output terminal of the electronic circuit of the movement of the DVD player, and the audio output terminal of the electronic circuit of the movement of the DVD player passes the two-channel audio frequency of the electronic circuit of the movement of the TV The signal input switching circuit is connected with the power amplifier and then connected with the loudspeaker group, and the movement electronic circuit of the TV set, the movement electronic circuit of the DVD player and the power amplifier are installed in a casing together.

Embodiment 4. A three-in-one TV set with a 5.1-channel surround sound power amplifier, as shown in FIG. 6 . The video input and output signals between the TV machine core and the DVD machine core are connected. The center, subwoofer, surround left, surround right, front left, front right end output and input audio signals between the DVD machine core and the power amplifier core are respectively connected one by one. The movement of the TV set, the movement of the DVD player and the power amplifier of the 5.1-channel surround audio output are installed together in a casing.

Embodiments 1 to 4 integrate functions such as television, DVD, power amplifier for watching TV, playing DVD, VCD, CD and other discs, and high-fidelity power amplifier. They have many functions, are convenient to use, and are simple to operate. They can be widely used in families and hotels. , agencies, groups, schools, enterprises and institutions and other occasions.

Claims (4)

1. three-in-one TV set, it is made of casing and the movement electronic circuit that is installed in the casing, the movement electronic circuit is by antenna and high-frequency tuner, Infrared remote controller, infrared remote receiver reaches and its master control microprocessor that is connected successively, EEPROM (Electrically Erasable Programmable Read Only Memo) (EEPROM), handle and the chroma decoding circuit with the luminance signal that the master control microprocessor is connected with high-frequency tuner, with the line output that luminance signal is handled and the chroma decoding circuit is connected, field output and display and the standard commutation circuit that is connected successively with luminance signal processing and chroma decoding circuit, the AV change-over circuit, two channel audio signal input-switching circuits, audio-frequency power amplifier and loud speaker and power circuit constitute, it is characterized in that said movement electronic circuit also is connected with the movement electronic circuit of DVD player, they are installed in the casing jointly.

2. according to the described three-in-one TV set of claim 1, left and right sound channels audio output that it is characterized in that the corresponding movement electronic circuit with DVD player of left and right sound channels audio input end of movement electronic circuit of said television set is connected, and the S video input terminal of the movement electronic circuit of television set is connected with the S video output terminal of the movement electronic circuit of DVD player.

3. according to the described three-in-one TV set of claim 1, the video input terminal that it is characterized in that the movement electronic circuit of said television set is connected with the video output terminal of the movement electronic circuit of DVD player, audio output of the movement electronic circuit of DVD player through two channel audio signal input-switching circuits of the movement electronic circuit of television set be connected with set of speakers again after power amplifier is connected, the movement electronic circuit of television set, the movement electronic circuit of DVD player and power amplifier are installed in the casing jointly.

4. according to the described three-in-one TV set of claim 1, the video input terminal that it is characterized in that the movement electronic circuit of said television set is connected with the video output terminal of the movement electronic circuit of DVD player, 5.1 sound channels of the movement electronic circuit of DVD player are mid-around audio frequency output, supper bass, around a left side, around the right side, a preposition left side, preposition right terminal respectively with 5.1 sound channels mid-around the power amplifier of audio frequency output, supper bass, around a left side, around the right side, a preposition left side, after connecting, preposition right input terminal is connected the movement electronic circuit of television set again with 6 loud speakers, the movement electronic circuit of DVD player and 5.1 sound channels are installed in the casing jointly around the power amplifier of audio frequency output.

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