CN201042054Y - Digital multimedia TV - Google Patents
Digital multimedia TV Download PDFInfo
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- CN201042054Y CN201042054Y CNU2007200785360U CN200720078536U CN201042054Y CN 201042054 Y CN201042054 Y CN 201042054Y CN U2007200785360 U CNU2007200785360 U CN U2007200785360U CN 200720078536 U CN200720078536 U CN 200720078536U CN 201042054 Y CN201042054 Y CN 201042054Y
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Abstract
The utility model relates to a digital multimedia TV set relating to a TV set, in particular to a decoding system for the TV set. To solve the shortcoming of high cost as the prior TV set plays the multimedia contents stored inside a USB through an independent decoding system, the utility model discloses the digital multimedia TV set. The utility model has the technical proposal that the digital multimedia TV set comprises a signal processing cell, an audio processing circuit and a display cell. The signal processing cell, the audio processing circuit and the display cell are respectively connected with the signal processing cell. The utility model also comprises a USB interface circuit and a signal switching circuit. The USB interface circuit is connected with the signal processing cell through the signal switching circuit. The utility model has the beneficial effect that a digital multimedia TV set which plays the multimedia files stored inside the USB through a TV set decoding system directly is provided, thereby decreasing the complicated degree of the system, reducing the cost, increasing the working stability of the whole device and decreasing the achieving difficulty of software and hardware.
Description
Technical field
The utility model relates to television set, particularly the decode system of television set.
Background technology
At present, people are more and more higher to the function and the performance requirement of consumption electronic product, and especially people's material and cultural needs has better been enriched in the development of digital multimedia technology.Because the popularity rate of USB device on market is high at present, and the function of the general USB device of all not plugging into of traditional TV.For being convenient for people to play-over the content of multimedia that is stored in the USB storage device on TV, generally realize directly plug into USB storage device and play content in the USB storage device of TV at present by increasing independent decoding chip and USB interface chip.Owing to adopted independently decoding chip and USB interface chip, the cost of this implementation method is higher, and USB decode system and television system are relatively independent, need develop and safeguard the software and hardware of USB decode system and the software and hardware of television system simultaneously.
The utility model content
Technical problem to be solved in the utility model is, plays the content of multimedia that is stored in the USB storage device at existing TV by decode system independently, and the shortcoming that cost is high provides a kind of digital multimedia TV.
The technical scheme that the utility model solve the technical problem employing is, the digital multimedia TV, comprise signal processing unit, audio frequency processing circuit and display unit, described signal processing unit links to each other with display unit with audio frequency processing circuit respectively, also comprise usb circuit and signaling conversion circuit, described usb circuit connects signal processing unit by signaling conversion circuit.
Described signaling conversion circuit is used for the serial usb signal is converted to the UART signal, connects signal processing unit by the UART bus; Or described signaling conversion circuit is used for the serial usb signal is converted to the I2C signal, connects signal processing unit by the I2C bus.
The beneficial effects of the utility model are, a kind of digital multimedia TV that utilizes the TV decode system just can plug into and play the multimedia file that stores in the USB storage device is provided, realized plugging on TV and play the function of the multimedia file that stores in the USB storage device with lower cost, reduced system complexity, reduce software and hardware and realized difficulty, promoted the job stability of complete machine.
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 adopts UART bus, master controller and television signal decoder and amplifying circuit absolute construction block diagram.
Fig. 3 adopts UART bus, the structured flowchart that master controller and television signal decoder and amplifying circuit are integrated.
Fig. 4 adopts I2C bus, master controller and television signal decoder and amplifying circuit independent structures block diagram.
Fig. 5 adopts I2C bus, the structured flowchart that master controller and television signal decoder and amplifying circuit are integrated.
In the accompanying drawing: 1---usb signal; 2---the UART signal; 3---the I2C signal; 4---8 parallel-by-bit video data signals; 5---the vision signal in other sources; 6---can be by the direct video signal displayed of digital display.
Embodiment
Some nouns that relate in the embodiment of the present utility model are described as follows:
UART: a kind of general serial data/address bus, can support asynchronous and synchronous communication, can realize full duplex transmission and reception, all built-in this kind bus interface of most MCU is used for carrying out data communication with other devices in the market;
I2C: a kind of data transmission bus, claim iic bus again, be a kind of simple, two-way, two-wire system, synchronous serial bus, the domestic various operations that are applied to control TV at present, digital television receiver all possesses this kind bus and uses;
MCU: master controller is used for system and controls and the multi-media signal that converts the UART/I2C signal to is handled;
DECODER+SCALER: television signal decoder and amplifying circuit are used for 8 digital video data-signals that vision signal and MCU with other source send and are converted to and are suitable for the digital signal that digital display system is used;
Other come source video signal: refer to the vision signal that all are handled without MCU, and as anolog TV signals, digital television signal, the analog color difference component signal, numeral color difference components signal, by the analog or digital vision signal that computer is sent, HDMI (High-definition Digital Multimedia Interface) etc.;
Digital multimedia TV of the present utility model, as shown in Figure 1: comprise signal processing unit, be used for outputing to audio frequency processing circuit and display unit after system's control and the multimedia signal dispose; Audio frequency processing circuit is used for the audio signal that the processing signals processing unit is exported; And display unit, be used for the vision signal of signal processing unit output is shown, described signal processing unit links to each other with display unit with audio frequency processing circuit respectively, also comprise usb circuit and signaling conversion circuit, described usb circuit connects described signal processing unit by signaling conversion circuit; Usb circuit is used to provide with the interconnective physical interface of USB storage device, Circuit Matching and interface protection is provided.At two kinds of bus modes that generally adopt on the present TV: UART bus and I2C bus, set different signaling conversion circuits, the serial usb signal is converted to different signals.If TV adopts the UART bus, signaling conversion circuit just is converted to the UART signal with the serial usb signal, and described signaling conversion circuit connects signal processing unit by the UART bus; If TV adopts the I2C bus, signaling conversion circuit just is converted to the I2C signal with the serial usb signal, and described signaling conversion circuit connects signal processing unit by the I2C bus.Described signal processing unit comprises two kinds of schemes that present TV generally adopts: a kind of is that master controller (MCU) and TV are decoded and amplifying circuit is (DECODER+SCALER) two separate units, signaling conversion circuit links to each other with MCU, program storage links to each other with MCU with frame buffer memory A, wherein, program storage is used to store the control program of multimedia messages handling procedure and television system; When frame buffer memory A is used for moving in system, stored program and data, audio frequency processing circuit links to each other with master controller, described MCU and DECODER+SCALER join, frame buffer memory B links to each other with DECODER+SCALER, when being used for moving in system, stored program and data, DECODER+SCALER is connected with display unit; Another kind is master controller (MCU) and TV is decoded and amplifying circuit (DECODER+SCALER) is integrated into an integrated unit MCU+DECODER+SCALER, signaling conversion circuit links to each other with MCU+DECODER+SCALER, program storage links to each other with MCU+DECODER+SCALER with frame buffer memory, wherein, program storage is used to store the control program of multimedia messages handling procedure and television system; When frame buffer memory is used for moving in system, stored program and data, audio frequency processing circuit links to each other with MCU+DECODER+SCALER, and described MCU+DECODER+SCALER links to each other with display unit.According to different demonstration needs, display unit is divided into digital display, is used for that vision signal is carried out digitlization and shows; Perhaps show the analogue display unit that treatment circuit and conformable display are formed by simulation, simulation shows that treatment circuit is used for converting digital video signal to analog signal and carrying out corresponding demonstration and handle, and conformable display is used for analog signal is carried out simulated demonstration.
Embodiment 1: referring to Fig. 2, usb circuit links to each other with signaling conversion circuit, signaling conversion circuit, audio frequency processing circuit, program storage and frame buffer memory A link to each other with MCU respectively, MCU links to each other with DECODER+SCALER, DECODER+SCALER is connected with frame buffer memory B, also connects digital display or shows that by simulation treatment circuit links to each other with conformable display.
During system start-up, MCU reads the control program of television system in program storage, and starts and control the course of work of other system.After inserting the USB storage device, after signaling conversion circuit is converted to UART signal 2 with usb signal 1, UART bus by television system is sent to UART signal 2 in the MCU, carry out calculation process by MCU, handle the 8 parallel-by-bit video data signals 4 that the back generation can directly be handled by DECODER+SCALER, after being sent to the DECODER+SCALER the inside, show processing by DECODER+SCALER.What DECODER+SCALER handled that the back generates can be sent to that numeric display device shows or again after simulation shows processing circuit processes by the direct video signal displayed 6 of numeric display device, delivers in the conformable display spare to show.
The vision signal 5 in every other source, as anolog TV signals, digital television signal, the analog color difference component signal, by the analog or digital vision signal that computer is sent, vision signals such as HDMI digital interface signal, after handling through DECODER+SCALER, also convert the digital video signal 5 that can directly show by numeric display device to, be sent to again that numeric display device shows or again after simulation shows processing circuit processes, deliver in the conformable display spare and show.
Embodiment 2: referring to Fig. 3, usb circuit links to each other with signaling conversion circuit, signaling conversion circuit, audio frequency processing circuit, program storage and frame buffer memory link to each other with MCU+DECODER+SCALER respectively, and MCU+DECODER+SCALER connects digital display or shows that by simulation treatment circuit links to each other with conformable display.
During system start-up, MCU reads the control program of television system in program storage, and starts whole system.After startup is finished, after signaling conversion circuit is converted to UART signal 2 with usb signal 1, UART bus by television system is sent to UART signal 2 in the MCU+DECODER+SCALER, can be sent to that numeric display device shows by the digital video signal 6 that numeric display device directly shows or again after simulation shows processing circuit processes, deliver in the conformable display spare and show after handling by MCU+DECODER+SCALER.
The vision signal 5 in every other source, as anolog TV signals, digital television signal, the analog color difference component signal, by the analog or digital vision signal that computer is sent, vision signals such as HDMI digital interface signal, after handling through MCU+DECODER+SCALER, also convert the digital video signal 6 that can directly show by numeric display device to, be sent to again that numeric display device shows or again after simulation shows processing circuit processes, deliver in the conformable display spare and show.
Embodiment 3: referring to Fig. 4, usb circuit links to each other with signaling conversion circuit, signaling conversion circuit, audio frequency processing circuit, program storage and frame buffer memory A link to each other with MCU respectively, MCU is connected with frame buffer memory B with DECODER+SCALER, also connects digital display or shows that by simulation treatment circuit links to each other with conformable display.
During system start-up, MCU reads the control program of television system in program storage, and starts and control the course of work of other system.After inserting the USB storage device, after signaling conversion circuit is converted to I2C signal 3 with usb signal 1, I2C bus by television system is sent to I2C signal 3 in the MCU, carry out calculation process by MCU, handle the 8 parallel-by-bit video data signals 4 that the back generation can directly be handled by DECODER+SCALER, after being sent to the DECODER+SCALER the inside, show processing by DECODER+SCALER.What DECODER+SCALER handled that the back generates can be sent to that numeric display device shows or again after simulation shows processing circuit processes by the direct video signal displayed 6 of numeric display device, delivers in the conformable display spare to show.
The vision signal 5 in every other source, as anolog TV signals, digital television signal, the analog color difference component signal, by the analog or digital vision signal that computer is sent, vision signals such as HDMI digital interface signal, after handling through DECODER+SCALER, also convert the digital video signal 5 that can directly show by numeric display device to, be sent to again that numeric display device shows or again after simulation shows processing circuit processes, deliver in the conformable display spare and show.
Embodiment 4: referring to Fig. 5, usb circuit links to each other with signaling conversion circuit, audio frequency processing circuit, program storage and frame buffer memory link to each other with MCU+DECODER+SCALER respectively, and MCU+DECODER+SCALER connects digital display or shows that by simulation treatment circuit links to each other with conformable display.
During system start-up, MCU reads the control program of television system in program storage, and starts whole system.Start finish after, after signaling conversion circuit was converted to I2C signal 3 with usb signal 1, the I2C bus by television system was sent to I2C signal 3 in the MCU+DECODER+SCALER, shows processing by MCU+DECODER+SCALER.Can be sent to that numeric display device shows by the digital video signal 6 that numeric display device directly shows or again after simulation shows processing circuit processes, deliver in the conformable display spare and show after MCU+DECODER+SCALER handles.
The vision signal 5 in every other source, as anolog TV signals, digital television signal, the analog color difference component signal, by the analog or digital vision signal that computer is sent, vision signals such as HDMI digital interface signal, after handling through MCU+DECODER+SCALER, also convert the digital video signal 6 that can directly show by numeric display device to, be sent to again that numeric display device shows or again after simulation shows processing circuit processes, deliver in the conformable display spare and show.
Claims (9)
1. digital multimedia TV, comprise signal processing unit, audio frequency processing circuit and display unit, described signal processing unit links to each other with display unit with audio frequency processing circuit respectively, it is characterized in that, also comprise usb circuit and signaling conversion circuit, described usb circuit connects described signal processing unit by signaling conversion circuit.
2. digital multimedia TV as claimed in claim 1 is characterized in that described signaling conversion circuit is converted to the UART signal with the serial usb signal, connects signal processing unit by the UART bus.
3. digital multimedia TV as claimed in claim 1 is characterized in that described signaling conversion circuit is converted to the I2C signal with the serial usb signal, connects signal processing unit by the I2C bus.
4. as claim 1,2 or 3 described digital multimedia TVs, it is characterized in that, described signal processing unit comprises master controller and television signal decoder and amplifying circuit, described audio frequency processing circuit links to each other with master controller, described master controller links to each other with television signal decoder and amplifying circuit, and described television signal decoder and amplifying circuit link to each other with display unit.
5. digital multimedia TV as claimed in claim 4, it is characterized in that, described signal processing unit also comprises program storage, frame buffer memory A and frame buffer memory B, described program storage, frame buffer memory A link to each other with master controller respectively, and described frame buffer memory B links to each other with television signal decoder and amplifying circuit.
6. as claim 1,2 or 3 described digital multimedia TVs, it is characterized in that, described signal processing unit has comprised master controller integrated and the processing integrated unit of television signal decoder and amplifying circuit, described audio frequency processing circuit links to each other with described processing integrated unit, and described processing integrated unit master links to each other with display unit.
7. digital multimedia TV as claimed in claim 6 is characterized in that described signal processing unit also comprises program storage and frame buffer memory, and described program storage, frame buffer memory link to each other with described processing integrated unit respectively.
8. as claim 1,5 or 7 described digital multimedia TVs, it is characterized in that described display unit is a digital display.
9. as claim 1,5 or 7 described digital multimedia TVs, it is characterized in that described display unit comprises that simulation shows treatment circuit and conformable display, described conformable display shows that by described simulation treatment circuit connects signal processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200785360U CN201042054Y (en) | 2007-02-13 | 2007-02-13 | Digital multimedia TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200785360U CN201042054Y (en) | 2007-02-13 | 2007-02-13 | Digital multimedia TV |
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| Publication Number | Publication Date |
|---|---|
| CN201042054Y true CN201042054Y (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200785360U Expired - Fee Related CN201042054Y (en) | 2007-02-13 | 2007-02-13 | Digital multimedia TV |
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| Country | Link |
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| CN (1) | CN201042054Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428560A (en) * | 2013-08-29 | 2013-12-04 | 广州创维平面显示科技有限公司 | Method and device for burning KEY codes |
| CN106911983A (en) * | 2017-01-10 | 2017-06-30 | 硅谷数模半导体（北京）有限公司 | The control method and system of audio frequency and video protocol conversion chip |
-
2007
- 2007-02-13 CN CNU2007200785360U patent/CN201042054Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428560A (en) * | 2013-08-29 | 2013-12-04 | 广州创维平面显示科技有限公司 | Method and device for burning KEY codes |
| CN106911983A (en) * | 2017-01-10 | 2017-06-30 | 硅谷数模半导体（北京）有限公司 | The control method and system of audio frequency and video protocol conversion chip |
| CN106911983B (en) * | 2017-01-10 | 2020-05-08 | 硅谷数模半导体（北京）有限公司 | Control method and system of audio and video protocol conversion chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20160213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |