CN100394780C - Four-in-one color liquid crystal TV set - Google Patents
Four-in-one color liquid crystal TV set Download PDFInfo
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Abstract
The present invention relates to a four-in-one color liquid crystal television, particularly to a device which integrates color liquid crystal computer displays, televisions, digital video discs (DVD) and high-fidelity sounders and has multiple sound and image functions. The present invention can play discs of DVD, video compact discs (VCD), compact discs (CD), etc., and have complete function. A displayer has no X-ray radiation. The present invention can fully utilize the shared circuit part in the composition structure, avoid the repeat arrangement of the circuits, and use a set of key boards, an infrared remote controller and a main control microprocessor to match and control each function circuit part. The circuits in active service are combined by the control of each signal switching circuit and each output control circuit of a multiway power supply according to the use function. The occupied space of the complete machine is small, the weight is light, and the energy is saved. Users are completely free from the connection of complicated signal lines and the multiple operation of the use function. Thus, the present invention has the advantages of convenient use and simple operation, and the present invention can be widely applied to families, hotels, organizations, communities, schools, enterprises, institutions, etc.
Description
Affiliated technical field
The invention belongs to technical field of television sets, a kind of equipment that integrates color liquid crystal computer monitor, television set, DVD, high-fidelity music center of more clearly saying so with multiple audio-video function.
Background technology
Computer, television set, Video CD (DVD) machine, high-fidelity music center are the necessitys in routine work and the life, at present the manufacturer of these equipment is many makes monomer-type with them, television set only has the basic function that televiews, its can teleview program that platform broadcasts and listen its sound accompaniment, the image display that also can do DVD player and video tape recorder etc. uses.But it can't replace DVD player, play-overs DVD, VCD, audio-visual product CDs such as CD; Computer monitor has only simple VGA interface to show visual function, can not can not use as the image display of DVD player and video tape recorder etc. by TV reception; DVD player can be play-overed audio-visual product CDs such as DVD, VCD, CD, but the television set that it must connect monitor in use or possess special condition is as display, and connects high-fidelity music center and carry out audio power and amplify and promote set of speakers.Need between the said equipment to interconnect when using, the user will carefully differentiate different binding posts, and connection procedure is complicated and bother; Moreover each equipment has its independently operation push-button and remote controller, and the user will operate respectively, has inconvenience.People wish to have a kind of current collection brain display, television set, DVD player, high-fidelity music center in the equipment with multiple audio-video function of one.For addressing the above problem, Chinese utility model patent specification CN 2290157Y discloses the patent No. and has been: ZL95200407.0, the technical scheme of " television reception and PC series microcomputer show dual-purpose display " by name.It proposes, and a shared output of cover audio frequency and the video signal display apparatus of computer monitor and television set adopts change over switch to introduce the audio frequency output and the vision signal of computer, perhaps output of the audio frequency of TV signal receiver and vision signal respectively.Although the computer of this technical scheme can dispose DVD player, be subjected to the restriction of application target and method, its DVD playing function limitation is very big, and computer and television set will operate respectively, still can not satisfy people's requirement.And then Chinese utility model patent specification CN 2514587Y discloses the patent No. and has been: ZL01269012.0, the technical scheme of " three-in-one TV set " by name.Its proposes the video output terminals of the video inputs of Core of TV set with the DVD player movement is connected, the audio output of DVD player movement through the audio signal input-switching circuit of Core of TV set be connected with set of speakers again after audio-frequency power amplifier is connected.This technical scheme is placed on Core of TV set, DVD player movement and audio-frequency power amplifier in the casing, solve the numerous and diverse problem of line, but described Core of TV set, DVD player movement and audio-frequency power amplifier respectively have its independently operation push-button and remote controller, still need during use to operate respectively.Again, traditional computer and television set adopt the cathode ray tube (CRT) display of analog signal, and CRT monitor volume heaviness, power consumption is big, X-radiation is strong; And novel computer and television set adopt liquid crystal (LCD) display of digital signal, and LCD display thickness is little, power consumption is little, no X-radiation and light and handy; But the LCD display of computer adopts the progressive scanned video analog input signal of VGA form and the LCD display of television set adopts the interlaced scanning video digital input signals of 656 forms; The vision signal output format of DVD player movement is because of the selection difference of inner decoding chip, can be the interlaced scanning video numeral output of 656 forms, also can be the progressive scanned video simulation output of VGA form, but select the well decoding chip of the VGA form progressive scanned video analog signal output used than low pass of price again of picture quality usually; Obviously can not use simple above-mentioned two kinds of technical schemes or their combination, the above-mentioned hope of realization people of adopting of a certain LCD display.The multiple audio-video function of people's expectation has only a kind of audio-video function to be used at synchronization in addition, and is in running order all the time with the circuit that this phonotape and videotape function is irrelevant, the waste electric energy.
Summary of the invention
The present invention aims to provide the brilliant computer monitor of a kind of liquid collecting, DVD, television set, high-fidelity music center in Four-in-one colored liquid crystal television one, energy-conservation and that be convenient to operate.
The objective of the invention is to realize by following scheme: Four-in-one colored liquid crystal television comprises a casing, an Infrared remote controller and is installed in keypad, infrared remote receiver, master control microprocessor, Core of TV set, colour liquid crystal display device, power circuit, DVD player movement, frequency switch circuit, audio-frequency power amplifier and set of speakers in this casing; Power circuit above-mentioned each unit power supply in casing; The audio signal output of the audio signal output of Core of TV set and DVD player movement is selected to broadcast through audio-frequency power amplifier excitation set of speakers by frequency switch circuit; It is characterized in that: further comprising VGA input interface, computer and the DVD video switch circuit that connects computer, the external audio frequency interface that connects outer audio equipment and multiple power supplies output control circuit; The video output terminals of DVD player movement connects first group of input of computer and DVD video switch circuit, the output of VGA input interface connects second group of input of computer and DVD video switch circuit, and computer is connected colour liquid crystal display device with the video output terminals of DVD video switch circuit respectively with the video output terminals of Core of TV set; The 3rd group of input of frequency switch circuit connects the output of external audio frequency interface; Master control micro processor controls multiple power supplies output control circuit offers Core of TV set, colour liquid crystal display device, DVD player movement, audio-frequency power amplifier with the electric energy of power circuit output; The input signal of master control micro processor controls frequency switch circuit and computer and DVD video switch circuit is selected; The scan mode of master control micro processor controls colour liquid crystal display device and input signal are selected; It has four kinds of mode of operations:
A. button on the keypad or Infrared remote controller by infrared remote receiver under the television set mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes Core of TV set, colour liquid crystal display device, audio-frequency power amplifier obtain electric energy, frequency switch circuit selects the audio signal output of Core of TV set to broadcast through audio-frequency power amplifier excitation set of speakers, colour liquid crystal display device selects the vision signal output of Core of TV set to carry out the interlacing scan demonstration, realizes the television set function;
B. button on the keypad or Infrared remote controller by infrared remote receiver under the DVD player mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes DVD player movement, colour liquid crystal display device, audio-frequency power amplifier obtain electric energy, frequency switch circuit selects the audio signal output of DVD player movement to broadcast through audio-frequency power amplifier excitation set of speakers, computer and DVD video switch circuit select the vision signal of DVD player movement to output to colour liquid crystal display device demonstrations of lining by line scan, realization DVD player function;
C. button on the keypad or Infrared remote controller by infrared remote receiver under the computer monitor mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes colour liquid crystal display device obtain electric energy, computer and DVD video switch circuit select the vision signal of VGA input interface to output to colour liquid crystal display device demonstrations of lining by line scan, realization computer monitor function;
D. button on the keypad or Infrared remote controller by infrared remote receiver under the high-fidelity music center mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes audio-frequency power amplifier obtain electric energy, frequency switch circuit selects the audio signal output of external audio frequency interface to broadcast through audio-frequency power amplifier excitation set of speakers, realizes the high-fidelity music center function.
Described Core of TV set comprises high-frequency tuner and Video Decoder; High-frequency tuner is selected the TV programme signal of specified channel and is isolated the analog quantity audio signal of its sound accompaniment and the analog quantity vision signal of image from the TV programme signal that the TV signal interface provides under the control of master control microprocessor, the analog quantity audio signal output of this sound accompaniment is to the first group selection input of frequency switch circuit, and Video Decoder is transformed into digital interlaced video signal with the analog quantity interlaced video signal of this image and outputs to colour liquid crystal display device under the control of master control microprocessor.
Described colour liquid crystal display device comprises the color LCD screen that color LCD screen drive circuit and output thereof connect; This color LCD screen drive circuit has digital interlacing scan input and built-in video a/d converter and analog quantity input thereof; This colour liquid crystal display device has two kinds of operating states:
E. the color LCD screen drive circuit is selected its built-in video a/d converter work under the control of master control microprocessor, and the computer that its analog quantity input is accepted converts the digital drive signal of lining by line scan to the analog picture signal of lining by line scan of DVD video switch circuit output and send the color LCD screen demonstration; Perhaps,
F. the digital interlaced video signal that the Video Decoder of the Core of TV set of its digital interlacing scan input acceptance is exported in the selection of color LCD screen drive circuit under the control of master control microprocessor converts digital interlacing scan drive signal to and send the color LCD screen demonstration.
Described DVD player movement comprises DVD decoding servo circuit, DVD driving and read-out device, three primary colors RGB and row vertical output circuit, audio frequency D/A converter and audio amplifier circuit; DVD decoding servo circuit is accepted instruction that button on the keypad or Infrared remote controller send by infrared remote receiver and is handled DVD and drive with the read-out device action and read information on the CD under the control of master control microprocessor, DVD decoding servo circuit the analog quantity vision signal of the digital audio signal and the image of its sound accompaniment from the optical disc information separating treatment of reading, audio frequency D/A converter becomes the analog quantity audio signal to transfer to the second group selection input that the audio amplifier circuit amplification outputs to frequency switch circuit the digital audio conversion of signals of this sound accompaniment, delivers to the first group selection input of computer and DVD video switch circuit after the analog quantity progressive-scan video signal amplification with this image of three primary colors RGB and row vertical output circuit.
In the high-fidelity music center mode of operation, also can show the image of external video input, a kind of execution mode is: the Video Decoder of described Core of TV set also connects the external video input interface; Button on the keypad or Infrared remote controller by infrared remote receiver under the high-fidelity music center mode instruction that the master control microprocessor sends is handled, the master control microprocessor is also controlled the multiple power supplies output control circuit makes colour liquid crystal display device obtain electric energy, and the image simulation amount interlaced video signal that Video Decoder is provided the external video input interface is transformed into digital interlaced video signal and outputs to colour liquid crystal display device.
In the computer monitor mode of operation, also can play the acoustic information of computer audio frequency interface output, a kind of execution mode is: described frequency switch circuit also has a group selection end to connect the computer audio frequency interface; Button on the keypad or Infrared remote controller by infrared remote receiver under the computer monitor mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit also makes this audio-frequency power amplifier obtain electric energy, and the audio signal output that master control micro processor controls frequency switch circuit selects the computer audio frequency interface to provide broadcasts through audio-frequency power amplifier excitation set of speakers.
After complete machine entered each mode of operation, the concrete operations in this mode of operation were finished in the concrete operations instruction that can use keypad or Infrared remote controller to send.A kind of execution mode is: the remote signal commutation circuit is delivered in the output of described infrared remote receiver, and two outputs of this remote signal commutation circuit connect DVD decoding servo circuit and master control microprocessor respectively; The output of keypad also connects DVD decoding servo circuit;
G. button on the keypad or Infrared remote controller by infrared remote receiver under the DVD player mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of DVD player state, master control micro processor controls remote signal commutation circuit is delivered to DVD decoding servo circuit with the output of infrared remote receiver, the concrete DVD player operational order that button or Infrared remote controller are sent to DVD decoding servo circuit by infrared remote receiver on keypad is controlled down, and DVD decoding servo circuit control DVD drives to carry out respectively with read-out device and comprises and delivering from godown, play, shut-down operation is in interior concrete DVD player operation; Perhaps, H. button on the keypad or Infrared remote controller by infrared remote receiver under the television set mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of television set state, master control micro processor controls remote signal commutation circuit is still delivered to the master control microprocessor with the output of infrared remote receiver, the concrete television set operational order that button or Infrared remote controller are sent to the master control microprocessor by infrared remote receiver on keypad is controlled down, master control micro processor controls Core of TV set is carried out respectively and is comprised that channel switches, concrete TV programme operation in system conversion operates in, perhaps master control micro processor controls colour liquid crystal display device is carried out respectively and is comprised the brightness adjustment, concrete display parameters adjustment operation in the contrast adjustment operates in, perhaps master control micro processor controls audio-frequency power amplifier is carried out respectively and is comprised the volume adjustment, concrete audio parameter adjustment operation in the tone adjustment operates in; Perhaps,
I. button on the keypad or Infrared remote controller by infrared remote receiver under the computer monitor mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of computer monitor state, master control micro processor controls remote signal commutation circuit is still delivered to the master control microprocessor with the output of infrared remote receiver, the concrete computer monitor operational order that button or Infrared remote controller are sent to the master control microprocessor by infrared remote receiver on keypad is controlled down, and master control micro processor controls colour liquid crystal display device is carried out respectively and comprised the brightness adjustment, concrete display parameters adjustment operation in the contrast adjustment operates in; Perhaps,
J. button on the keypad or Infrared remote controller by infrared remote receiver under the high-fidelity music center mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of high-fidelity music center state, master control micro processor controls remote signal commutation circuit is still delivered to the master control microprocessor with the output of infrared remote receiver, the concrete high-fidelity music center operational order that button or Infrared remote controller are sent to the master control microprocessor by infrared remote receiver on keypad is controlled down, and master control micro processor controls audio-frequency power amplifier is carried out respectively and comprised the volume adjustment, concrete audio parameter adjustment operation in the tone adjustment operates in.
Four-in-one colored liquid crystal television of the present invention integrates color liquid crystal computer monitor, television set, DVD player, high-fidelity music center, energy DVD playing back, video discs such as VCD, CD, and its complete function, display does not have X-radiation.Since form make full use of on the structure can be shared circuit part, avoided circuit to repeat to be provided with, cooperate each functional circuit part of control with a master control microprocessor by a cover keypad and Infrared remote controller, controlling each signal switching circuit by function of use finishes in the combination of using as a servant circuit with each multiple power supplies output control circuit, complete machine takes up room little, in light weight, energy-conservation; The user fully from the holding wire of complexity connect and the function of use composition operation free, so: easy to use, simple to operate, can be widely used in family, the hotel, office, group, school is in the occasions such as enterprises and institutions.
Description of drawings
Fig. 1 is the general structure schematic diagram of Four-in-one colored liquid crystal television of the present invention.
Fig. 2 is the principle frame structure schematic diagram of an embodiment of Four-in-one colored liquid crystal television of the present invention.
Fig. 3 enters the operation control relation schematic diagram of television set pattern, computer monitor pattern, high-fidelity music center pattern for Fig. 2 embodiment.
Fig. 4 is operation control relation schematic diagram after the DVD player pattern that enters of Fig. 2 embodiment.
Fig. 5 is the frame structure schematic diagram of Fig. 2 embodiment during as DVD player.
Fig. 6 is the frame structure schematic diagram of Fig. 2 embodiment during as television set.
Fig. 7 is the frame structure schematic diagram of Fig. 2 embodiment during as computer monitor and computer stereo.
Fig. 8 is the frame structure schematic diagram of Fig. 2 embodiment during as high-fidelity music center and external video playback.
Embodiment
The general structure of Four-in-one colored liquid crystal television of the present invention sees also Fig. 1.
This Four-in-one colored liquid crystal television integrates the multiple audio-video function that has of color liquid crystal computer monitor, television set, DVD, high-fidelity music center.It comprises a casing, an Infrared remote controller 53 and be installed in Core of TV set 1 in this casing, DVD player movement 2, colour liquid crystal display device 3, audio-frequency power amplifier 4, set of speakers 41, master control microprocessor 5, keypad 51, infrared remote receiver 52, power circuit 6, multiple power supplies output control circuit 7, computer and DVD video switch circuit 81, frequency switch circuit 82, be connected computer VGA input interface 93, connect the external audio frequency interface 94 of outer audio equipment.Power circuit 6 above-mentioned each unit power supply in casing.The audio signal output end of Core of TV set 1 connects first group of input of frequency switch circuit 82, the audio signal output end of DVD player movement 2 connects second group of input of frequency switch circuit 82, and the output of external audio frequency interface 94 connects the 3rd group of input of frequency switch circuit 82.The audio signal output of the audio signal output of the audio signal output of Core of TV set 1 and DVD player movement 2 and external audio frequency interface 94 is selected to broadcast through audio-frequency power amplifier 4 excitation set of speakers 41 by frequency switch circuit 82.The video output terminals of DVD player movement 2 connects first group of input of computer and DVD video switch circuit 81, the output of VGA input interface 93 connects second group of input of computer and DVD video switch circuit 81, and computer is connected colour liquid crystal display device 3 with the video output terminals of DVD video switch circuit 81 respectively with the video output terminals of Core of TV set 1.Master control microprocessor 5 control multiple power supplies output control circuits 7 offer Core of TV set 1, DVD player movement 2, colour liquid crystal display device 3, audio-frequency power amplifier 4 with the electric energy of power circuit 6 outputs.The input signal of master control microprocessor 5 control audio commutation circuits 82 and computer and DVD video switch circuit 81 is selected.The scan mode and the input signal of master control microprocessor 5 control colour liquid crystal display devices 3 are selected.
This Four-in-one colored liquid crystal television has four kinds of mode of operations:
A. television set pattern.Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the television set mode instruction that master control microprocessor 5 sends is handled, multiple power supplies output control circuit 7 makes Core of TV set 1, colour liquid crystal display device 3, audio-frequency power amplifier 4 obtain electric energy, frequency switch circuit 82 selects the audio signal output of Core of TV set 1 to broadcast through audio-frequency power amplifier 4 excitation set of speakers 41, colour liquid crystal display device 3 selects the vision signal output of Core of TV set 1 to carry out the interlacing scan demonstration, realizes the television set function.
B.DVD machine pattern.Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the DVD player mode instruction that master control microprocessor 5 sends is handled, multiple power supplies output control circuit 7 makes DVD player movement 2, colour liquid crystal display device 3, audio-frequency power amplifier 4 obtain electric energy, frequency switch circuit 82 selects the audio signal output of DVD player movement 2 to broadcast through audio-frequency power amplifier 4 excitation set of speakers 41, computer and DVD video switch circuit 81 selects the vision signal of DVD player movements 1 to output to colour liquid crystal display device 3 demonstrations of lining by line scan, realization DVD player function.
C. computer monitor pattern.Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the computer monitor mode instruction that master control microprocessor 5 sends is handled, multiple power supplies output control circuit 7 makes colour liquid crystal display device 3 obtain electric energy, computer and DVD video switch circuit 81 selects the vision signal of VGA input interfaces 93 to output to colour liquid crystal display device 3 demonstrations of lining by line scan, realization computer monitor function.
D. high-fidelity music center pattern.Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the high-fidelity music center mode instruction that master control microprocessor 5 sends is handled, multiple power supplies output control circuit 7 makes audio-frequency power amplifier 4 obtain electric energy, frequency switch circuit 82 selects the audio signal output of external audio frequency interface 94 to broadcast through audio-frequency power amplifier 4 excitation set of speakers 41, realizes the high-fidelity music center function.
The principle frame structure of an embodiment of Four-in-one colored liquid crystal television of the present invention sees also Fig. 2.The composition of present embodiment and annexation are deferred to basic structure shown in Figure 1, its working method also as described above, below repeated description no longer.The item that now needs to replenish is made an explanation.
Core of TV set 1 comprises high-frequency tuner 11 and Video Decoder 12 two parts in the present embodiment.High-frequency tuner 11 is selected the TV programme signal of specified channel and is isolated the analog quantity audio signal of its sound accompaniment and the analog quantity vision signal of image from the TV programme signal that TV signal interface 91 provides under the control of master control microprocessor 5, and the analog quantity audio signal output of this sound accompaniment is to the first group selection input of frequency switch circuit 82.Video Decoder 12 is transformed into digital interlaced video signal with the analog quantity interlaced video signal of this image and outputs to colour liquid crystal display device 3 under the control of master control microprocessor 5.
Colour liquid crystal display device 3 comprises the color LCD screen 31 that color LCD screen drive circuit 32 and output thereof connect in the present embodiment.This color LCD screen drive circuit 32 has digital interlacing scan input and built-in video a/d converter and analog quantity input thereof.This colour liquid crystal display device 3 has two kinds of operating states:
1. color LCD screen drive circuit 32 is selected its built-in video a/d converter work under the control of master control microprocessor 5, and the computer that its analog quantity input is accepted converts the digital drive signal of lining by line scan to the analog picture signal of lining by line scan of DVD video switch circuit 81 outputs and send color LCD screen 31 demonstrations.
2. color LCD screen drive circuit 32 is selected the digital interlaced video signal of Video Decoder 12 outputs of Core of TV set 1 that its digital interlacing scan input is accepted to convert digital interlacing scan drive signal to send color LCD screen 31 to show under the control of master control microprocessor 5.
The audio-frequency power amplifier 4 of present embodiment is made up of the integrated circuit of dual track, and it can carry out volume adjustment and tone adjustment under the control of master control microprocessor 5.
The platform that the master control microprocessor 5 of present embodiment selects 8051 microprocessors to carry out as software work.For software, button or Infrared remote controller 53 are as follows to the instruction priority level order that master control microprocessor 5 sends by infrared remote receiver 52 on the processing keypad 51:
1. power supply state changing (user's Switching Power Supply key)
2. mode of operation changes (user's switching working mode)
3. general key-press status changes (user's actions menu subtitle setting key)
Have only when other external event of higher priority does not take place, just go to handle other incident of lower priority.
After complete machine entered each mode of operation, the concrete operations in this mode of operation were finished in the concrete operations instruction that can use keypad 51 or Infrared remote controller 53 to send.For this reason, remote signal commutation circuit 54 is delivered in the output of infrared remote receiver 52, and two outputs of this remote signal commutation circuit 54 connect DVD decoding servo circuit 21 and master control microprocessor 5 respectively.The output of keypad 51 yet connects DVD decoding servo circuit 21.
Present embodiment enters the operation control relation of television set pattern, computer monitor pattern, high-fidelity music center pattern, sees also Fig. 3.
Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the television set mode instruction that master control microprocessor 5 sends is handled, after complete machine enters the work of television set state, master control microprocessor 5 control remote signal commutation circuits 54 are still delivered to master control microprocessor 5 with the output of infrared remote receiver 53, the concrete television set operational order that button or Infrared remote controller 53 are sent to master control microprocessor 5 by infrared remote receiver 52 on keypad 51 is controlled down, and the high-frequency tuner 11 of master control microprocessor 5 control Core of TV set 1 is carried out respectively and comprised that channel switches, concrete TV programme operation in system conversion operates in; Perhaps master control microprocessor 5 control color LCD screen drive circuits 32 are carried out respectively and are comprised that brightness adjustment, contrast adjustment operate in interior concrete colour liquid crystal display device 3 display parameters adjustment operation; Perhaps master control microprocessor 5 control audio power amplifiers 4 are carried out respectively and are comprised that volume adjustment, tone adjustment operate in interior concrete audio parameter adjustment operation.
Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the computer monitor mode instruction that master control microprocessor 5 sends is handled, after complete machine enters the work of computer monitor state, master control microprocessor 5 control remote signal commutation circuits 54 are still delivered to master control microprocessor 5 with the output of infrared remote receiver 53, the concrete computer monitor operational order that button or Infrared remote controller 53 are sent to master control microprocessor 5 by infrared remote receiver 52 on keypad 51 is controlled down, and master control microprocessor 5 control color LCD screen drive circuits 32 are carried out respectively and comprised the brightness adjustment, concrete colour liquid crystal display device 3 display parameters adjustment operation in the contrast adjustment operates in.
Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the high-fidelity music center mode instruction that master control microprocessor 5 sends is handled, after complete machine enters the work of high-fidelity music center state, master control microprocessor 5 control remote signal commutation circuits 54 are still delivered to master control microprocessor 5 with the output of infrared remote receiver 53, the concrete high-fidelity music center operational order that button or Infrared remote controller 53 are sent to master control microprocessor 5 by infrared remote receiver 52 on keypad 51 is controlled down, and master control microprocessor 5 control audio power amplifiers 4 are carried out respectively and comprised the volume adjustment, concrete audio parameter adjustment operation in the tone adjustment operates in.
Present embodiment enter the DVD player pattern after operate control relation, see also Fig. 4.
Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the DVD player mode instruction that master control microprocessor 5 sends is handled, after complete machine enters the work of DVD player state, master control microprocessor 5 control remote signal commutation circuits 54 are delivered to DVD decoding servo circuit 21 with the output of infrared remote receiver 52, the concrete DVD player operational order that button or Infrared remote controller 53 are sent to DVD decoding servo circuit 21 by infrared remote receiver 52 on keypad 51 is controlled down, and DVD decoding servo circuit 21 control DVD drive to carry out respectively with read-out device 22 and comprise and delivering from godown, play, shut-down operation is in interior concrete DVD player operation.After complete machine enters the work of DVD player state, master control microprocessor 5 also monitor button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 send to colour liquid crystal display device 3 and audio-frequency power amplifier 4 control operations instruction; In case receive above-mentioned instruction, just control color LCD screen drive circuit 32 and carry out respectively and comprise brightness adjustment, the contrast adjustment concrete display parameters adjustment operation in operating in; Perhaps control audio power amplifier 4 is carried out respectively and is comprised that volume adjustment, tone adjustment operate in interior concrete audio parameter adjustment operation.
The power circuit 6 of present embodiment is a DC transfer circuit, and it is transformed into output of 12V direct current and the output of 5V direct current with the input of 12V direct current.Wherein, often open the output of 5V direct current to master control microprocessor 5, computer and DVD video switch circuit 81, frequency switch circuit 82 power supplies, 5V direct current output in another road is to 7 power supplies of multiple power supplies output control circuit.Select for use the power supply adaptor of AC85-240V input, DC12V output supporting in addition for the alternating-current power supply occasion.
The multiple power supplies output control circuit 7 of present embodiment is powered to Core of TV set 1, DVD player movement 2, colour liquid crystal display device 3, audio-frequency power amplifier 4, VGA input interface 93 respectively under the control of each control line of the power supply control I/O of master control microprocessor 5 mouth.For ease of understanding the working method of multiple power supplies output control circuit 7, the metal-oxide-semiconductor control circuit 71 of the band control end of powering and the diagram expression of simplifying to the screen power supply 72 of colour liquid crystal display device 3 power supplies have been provided among Fig. 2, Fig. 5, Fig. 6, Fig. 7 and Fig. 8 to DVD player movement 2.Provide electric energy to the metal-oxide-semiconductor control circuit 71 of the band control end of DVD player movement 2 power supply by the 5V direct current output of power circuit 6, under the control of the power supply control I/O of master control microprocessor 5 mouth DVD control line, to the DVD of DVD player movement 2 decoding servo circuit 21, DVD driving and read-out device 22, three primary colors RGB and row vertical output circuit 23, audio frequency D/A converter 24 and audio amplifier circuit 25 power supplies.Being exported by the 12V direct current output of power circuit 6 and 5V direct current to the screen power supply 72 of colour liquid crystal display device 3 power supply provides electric energy, under the control of the power supply control I/O of master control microprocessor 5 mouth screen power control line, to the color LCD screen 31 and 32 power supplies of color LCD screen drive circuit of colour liquid crystal display device 3.
Present embodiment also can be play the acoustic information of computer audio frequency interface 95 outputs in the computer monitor mode of operation.Computer audio frequency interface 95 connects the 4th group selection end of frequency switch circuit 82.Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the computer monitor mode instruction that master control microprocessor 5 sends is handled, multiple power supplies output control circuit 7 also makes this audio-frequency power amplifier 4 obtain electric energy, and the audio signal output that master control microprocessor 5 control audio commutation circuits 82 select computer audio frequency interface 95 to provide broadcasts through audio-frequency power amplifier 4 excitation set of speakers 41.
Present embodiment also can show the image of external video input in the high-fidelity music center mode of operation, and institute's employing method is: the Video Decoder 12 of Core of TV set 1 also connects external video input interface 96.Button on the keypad 51 or Infrared remote controller 53 by infrared remote receiver 52 under the high-fidelity music center mode instruction that master control microprocessor 5 sends is handled, master control microprocessor 5 is also controlled multiple power supplies output control circuit 7 makes colour liquid crystal display device 3 obtain electric energy, and the image simulation amount interlaced video signal that Video Decoder 12 is provided external video input interface 96 is transformed into digital interlaced video signal and outputs to colour liquid crystal display device 3.
Corresponding with aforesaid four kinds of mode of operations, the equipment that present embodiment can be used as television set, DVD player, computer monitor and computer stereo, high-fidelity music center and four kinds of patterns of external video playback uses.Effective frame structure of the equipment of these four kinds of patterns is please respectively referring to Fig. 5, Fig. 6, Fig. 7 and Fig. 8.
Only need in use the outside source of needs is inserted corresponding interface such as host computer VGA signal and audio signal, antenna or wired closed-circuit television signal, external video (AV) signal and external audio signal with reference to specification.Press pattern (MODE) key of keypad 51 or Infrared remote controller 53 and can select different mode of operations: the television set pattern watches that TV program, DVD player pattern listen to and watch CD on the CD or VCD or DVD program, computer monitor pattern to make the program that external camera, video, audio frequency were listened to and watched to computer monitor and sound equipment, high-fidelity music center pattern.Need not manually refute with regard to different model selections and connect signal, really realize a tractor serves several purposes.
When selecting different working modes, use same keypad 51 and Infrared remote controller 53 operations, inner master control microprocessor 5 to switch corresponding combination of circuits and control combination according to the mode of operation of selecting.When work, 5 pairs of power units of master control microprocessor carry out tracking Control timely and effectively, by multiple power supplies output control circuit 7 unwanted power unit are turned off to realize low-power consumption to greatest extent under different mode of operations.The user need not consider inner handoff relation, only by the requirement of oneself present embodiment is used as television set, DVD player, computer monitor and a computer stereo, high-fidelity music center and external video playback apparatus, and operation is succinctly convenient.
Claims (7)
1. Four-in-one colored liquid crystal television comprises a casing, an Infrared remote controller and is installed in keypad, infrared remote receiver, master control microprocessor, Core of TV set, colour liquid crystal display device, power circuit, DVD player movement, frequency switch circuit, audio-frequency power amplifier and set of speakers in this casing; Power circuit above-mentioned each unit power supply in casing; The audio signal output of the audio signal output of Core of TV set and DVD player movement is selected to broadcast through audio-frequency power amplifier excitation set of speakers by frequency switch circuit; It is characterized in that: further comprising VGA input interface, computer and the DVD video switch circuit that connects computer, the external audio frequency interface that connects outer audio equipment and multiple power supplies output control circuit; The video output terminals of DVD player movement connects first group of input of computer and DVD video switch circuit, the output of VGA input interface connects second group of input of computer and DVD video switch circuit, and computer is connected colour liquid crystal display device with the video output terminals of DVD video switch circuit respectively with the video output terminals of Core of TV set; The 3rd group of input of frequency switch circuit connects the output of external audio frequency interface; Master control micro processor controls multiple power supplies output control circuit offers Core of TV set, colour liquid crystal display device, DVD player movement, audio-frequency power amplifier with the electric energy of power circuit output; The input signal of master control micro processor controls frequency switch circuit and computer and DVD video switch circuit is selected; The scan mode of master control micro processor controls colour liquid crystal display device and input signal are selected; It has four kinds of mode of operations:
A. button on the keypad or Infrared remote controller by infrared remote receiver under the television set mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes Core of TV set, colour liquid crystal display device, audio-frequency power amplifier obtain electric energy, frequency switch circuit selects the audio signal output of Core of TV set to broadcast through audio-frequency power amplifier excitation set of speakers, colour liquid crystal display device selects the vision signal output of Core of TV set to carry out the interlacing scan demonstration, realizes the television set function;
B. button on the keypad or Infrared remote controller by infrared remote receiver under the DVD player mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes DVD player movement, colour liquid crystal display device, audio-frequency power amplifier obtain electric energy, frequency switch circuit selects the audio signal output of DVD player movement to broadcast through audio-frequency power amplifier excitation set of speakers, computer and DVD video switch circuit select the vision signal of DVD player movement to output to colour liquid crystal display device demonstrations of lining by line scan, realization DVD player function;
C. button on the keypad or Infrared remote controller by infrared remote receiver under the computer monitor mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes colour liquid crystal display device obtain electric energy, computer and DVD video switch circuit select the vision signal of VGA input interface to output to colour liquid crystal display device demonstrations of lining by line scan, realization computer monitor function;
D. button on the keypad or Infrared remote controller by infrared remote receiver under the high-fidelity music center mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit makes audio-frequency power amplifier obtain electric energy, frequency switch circuit selects the audio signal output of external audio frequency interface to broadcast through audio-frequency power amplifier excitation set of speakers, realizes the high-fidelity music center function.
2. Four-in-one colored liquid crystal television according to claim 1 is characterized in that: described Core of TV set comprises high-frequency tuner and Video Decoder; High-frequency tuner is selected the TV programme signal of specified channel and is isolated the analog quantity audio signal of its sound accompaniment and the analog quantity vision signal of image from the TV programme signal that the TV signal interface provides under the control of master control microprocessor, the analog quantity audio signal output of this sound accompaniment is to the first group selection input of frequency switch circuit, and Video Decoder is transformed into digital interlaced video signal with the analog quantity interlaced video signal of this image and outputs to colour liquid crystal display device under the control of master control microprocessor.
3. Four-in-one colored liquid crystal television according to claim 2 is characterized in that: described colour liquid crystal display device comprises the color LCD screen that color LCD screen drive circuit and output thereof connect; This color LCD screen drive circuit has digital interlacing scan input and built-in video a/d converter and analog quantity input thereof; It has two kinds of working methods:
E. the color LCD screen drive circuit is selected its built-in video a/d converter work under the control of master control microprocessor, and the computer that its analog quantity input is accepted converts the digital drive signal of lining by line scan to the analog picture signal of lining by line scan of DVD video switch circuit output and send the color LCD screen demonstration; Perhaps,
F. the digital interlaced video signal that the Video Decoder of the Core of TV set of its digital interlacing scan input acceptance is exported in the selection of color LCD screen drive circuit under the control of master control microprocessor converts digital interlacing scan drive signal to and send the color LCD screen demonstration.
4. according to claim 1 or 2 or 3 described Four-in-one colored liquid crystal televisions, it is characterized in that: described DVD player movement comprises DVD decoding servo circuit, DVD driving and read-out device, three primary colors RGB and row vertical output circuit, audio frequency D/A converter and audio amplifier circuit; DVD decoding servo circuit is accepted instruction that button on the keypad or Infrared remote controller send by infrared remote receiver and is handled DVD and drive with the read-out device action and read information on the CD under the control of master control microprocessor, DVD decoding servo circuit the analog quantity vision signal of the digital audio signal and the image of its sound accompaniment from the optical disc information separating treatment of reading, audio frequency D/A converter becomes the analog quantity audio signal to transfer to the second group selection input that the audio amplifier circuit amplification outputs to frequency switch circuit the digital audio conversion of signals of this sound accompaniment, delivers to the first group selection input of computer and DVD video switch circuit after the analog quantity progressive-scan video signal amplification with this image of three primary colors RGB and row vertical output circuit.
5. Four-in-one colored liquid crystal television according to claim 4 is characterized in that: the Video Decoder of described Core of TV set also connects the external video input interface; Button on the keypad or Infrared remote controller by infrared remote receiver under the high-fidelity music center mode instruction that the master control microprocessor sends is handled, the master control microprocessor is also controlled the multiple power supplies output control circuit makes colour liquid crystal display device obtain electric energy, and the image simulation amount interlaced video signal that Video Decoder is provided the external video input interface is transformed into digital interlaced video signal and outputs to colour liquid crystal display device.
6. Four-in-one colored liquid crystal television according to claim 4 is characterized in that: described frequency switch circuit also has a group selection end to connect the computer audio frequency interface; Button on the keypad or Infrared remote controller by infrared remote receiver under the computer monitor mode instruction that the master control microprocessor sends is handled, the multiple power supplies output control circuit also makes this audio-frequency power amplifier obtain electric energy, and the audio signal output that master control micro processor controls frequency switch circuit selects the computer audio frequency interface to provide broadcasts through audio-frequency power amplifier excitation set of speakers.
7. Four-in-one colored liquid crystal television according to claim 4, it is characterized in that: the remote signal commutation circuit is delivered in the output of described infrared remote receiver, and two outputs of this remote signal commutation circuit connect DVD decoding servo circuit and master control microprocessor respectively; The output of keypad also connects DVD decoding servo circuit; Its control mode has four kinds:
G. button on the keypad or Infrared remote controller by infrared remote receiver under the DVD player mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of DVD player state, master control micro processor controls remote signal commutation circuit is delivered to DVD decoding servo circuit with the output of infrared remote receiver, the concrete DVD player operational order that button or Infrared remote controller are sent to DVD decoding servo circuit by infrared remote receiver on keypad is controlled down, and DVD decoding servo circuit control DVD drives to carry out respectively with read-out device and comprises and delivering from godown, play, shut-down operation is in interior concrete DVD player operation; Perhaps,
H. button on the keypad or Infrared remote controller by infrared remote receiver under the television set mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of television set state, master control micro processor controls remote signal commutation circuit is still delivered to the master control microprocessor with the output of infrared remote receiver, the concrete television set operational order that button or Infrared remote controller are sent to the master control microprocessor by infrared remote receiver on keypad is controlled down, master control micro processor controls Core of TV set is carried out respectively and is comprised that channel switches, concrete TV programme operation in system conversion operates in, perhaps master control micro processor controls colour liquid crystal display device is carried out respectively and is comprised the brightness adjustment, concrete display parameters adjustment operation in the contrast adjustment operates in, perhaps master control micro processor controls audio-frequency power amplifier is carried out respectively and is comprised the volume adjustment, concrete audio parameter adjustment operation in the tone adjustment operates in; Perhaps,
I. button on the keypad or Infrared remote controller by infrared remote receiver under the computer monitor mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of computer monitor state, master control micro processor controls remote signal commutation circuit is still delivered to the master control microprocessor with the output of infrared remote receiver, the concrete computer monitor operational order that button or Infrared remote controller are sent to the master control microprocessor by infrared remote receiver on keypad is controlled down, and master control micro processor controls colour liquid crystal display device is carried out respectively and comprised the brightness adjustment, concrete display parameters adjustment operation in the contrast adjustment operates in; Perhaps,
J. button on the keypad or Infrared remote controller by infrared remote receiver under the high-fidelity music center mode instruction that the master control microprocessor sends is handled, after complete machine enters the work of high-fidelity music center state, master control micro processor controls remote signal commutation circuit is still delivered to the master control microprocessor with the output of infrared remote receiver, the concrete high-fidelity music center operational order that button or Infrared remote controller are sent to the master control microprocessor by infrared remote receiver on keypad is controlled down, and master control micro processor controls audio-frequency power amplifier is carried out respectively and comprised the volume adjustment, concrete audio parameter adjustment operation in the tone adjustment operates in.
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| CNB2004100239818A CN100394780C (en) | 2004-04-30 | 2004-04-30 | Four-in-one color liquid crystal TV set |
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| CNB2004100239818A CN100394780C (en) | 2004-04-30 | 2004-04-30 | Four-in-one color liquid crystal TV set |
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| CN100394780C true CN100394780C (en) | 2008-06-11 |
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| CN100423035C (en) * | 2005-04-28 | 2008-10-01 | 廖锦新 | Radio control device and method for multimedium teaching |
| TWI384870B (en) | 2006-01-03 | 2013-02-01 | Mstar Semiconductor Inc | Method of auto-switching audio-video signals and associated apparatus |
| CN103188453B (en) * | 2011-12-31 | 2016-04-27 | 联想(北京)有限公司 | A kind of control method, device and electronic equipment of televising |
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Assignee: Nanjing Malata Technology Co.,Ltd. Assignor: WANLIDA GROUP Co.,Ltd. Contract fulfillment period: 2008.10.15 to 2024.4.29 Contract record no.: 2008350000204 Denomination of invention: Four-in-one color liquid crystal TV set Granted publication date: 20080611 License type: Exclusive license Record date: 20081126 |
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