CN100352269C - System for treating signal in multimedia - Google Patents
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- CN100352269C CN100352269C CNB2004100839111A CN200410083911A CN100352269C CN 100352269 C CN100352269 C CN 100352269C CN B2004100839111 A CNB2004100839111 A CN B2004100839111A CN 200410083911 A CN200410083911 A CN 200410083911A CN 100352269 C CN100352269 C CN 100352269C
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Abstract
The present invention relates to a multimedia signal treating system which comprises a first signal input device, a second signal input device, a control device, a processing device, an encoder, a pulse generating unit, a signal output device and a converter, wherein electric waves comprising video and audio signals are received and converted into digital signals by the first signal input device; the second signal input device is provided with a standard transmission interface; the control device is coupled with the first signal input device and the second signal input device; control signals and data signals transmitted by the control device are received by the processing device; data signals transmitted by the control device are received and encoded by the encoder; pulse signals are generated and transmitted to the control device by the pulse generating unit; data signals of the processing device are received by the signal output device; the data signals of the processing device are received, converted into compression signal format and sent back to the processing device by the converter. The present invention has the advantages that the hardware cost is reduced; the quantity of video chips is reduced; the problem of time delay of video frequency and audio frequency is solved; the design of a circuit board is easy.
Description
Technical field
The present invention relates to a kind of device of design of electronic circuits, a kind ofly be relevant to multimedia video and audio frequency is controlled by a program logic chip but particularly relate to, and the device of the design of electronic circuits of the transmission of control signal.
Background technology
Along with the progress of science and technology, form a machine gradually and need possess multi-functional requirement, also be to have same expectation on general home audio-visual demand, therefore, technology in this respect constantly has the people in the research and development innovation.No. 572264 the disclosed multimedia processing apparatus that is additional to audio-visual devices of novel patent is announced in correlation technique such as Taiwan, its content is for to make traditional audio-visual devices such as sound equipment by a multimedia processing apparatus, simulated television or computer screen can pass through universal serial bus (universal serial bus, USB) equipment of this coffret of connection tool, and transmit sound (as MP3, WMA or WAV etc.), image is (as animation compression standard 1 (motion picture experts group, MPEG1) or animation compression standard 2 (MPEG2) etc.) or image (as JPG or BMP etc.), and as Taiwan announce No. 594572 with disclosed multi-functional multimedia playing apparatus of No. 594483 patent of invention and multi-functional integrated multimedia playing apparatus, its content is for can utilize traditional audio-visual equipment to carry out browsing photo by this device, video display are play, voice playing, video and audio recording function, playing back music and voice program, functions such as recorded video and audio program and navigation, be the global function device, give the transmission of control signal by above-mentioned unlike signal processing module by a control unit.
Above-mentioned TV signal all is traditional anolog TV signals, picture signal is to belong to successional variation, adopt the NTSC system, chief reason is that analog signal is in the process transmission and processing process, can can't remove by the many noises of accumulation, therefore, digital broadcasting just produces, because digital signal can be noise remove, keep original signal quality with clean, digitized signal can also strengthen transinformation content by compression in addition, for example: an analog television channels can only be broadcast a program, and digital TV channel can be broadcast three, four or Polymera more.
Because digital broadcasting is that the tv programme source 1a from TV station is conversion of signals a compressed signal through digital compression equipment 1b, and again by different emission pipelines such as satellite 1c, radiovision launching base platform 1d, pipelines such as cable television system 1e or broadband connections networking 1f externally transmit, channel usage digitized signal from the transmitting terminal of emission source to 1g of family or automobile 1h transmits, as Fig. 1, and this signal is by the signal after the compression, the compression standard of international uniform is MPEG-2 at present, so need a receiver to receive this digital signal, for surcharge and the function that improves this receiver, also need possess other function, just can meet modern's demand.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of system for treating signal in multimedia, thereby come receiving digital signals, and signal can be handled, as storing or change into VCD or DVD image format etc., and circuit design of the present invention utilizes multiplexer to handle video and audio signal reduces many hardware costs, and the quantity of video chip.
To achieve these goals, the invention provides a kind of system for treating signal in multimedia, its characteristics are, comprise: one first signal input apparatus receives the electric wave that comprises video and audio signal, and transfers this electric wave to digital signal; One secondary signal input unit is the interface of a standard transmission; One control device couples with this first signal input apparatus and this secondary signal input unit, is a synchronization video and audio frequency multiplexer; One processing unit accept this control device institute's control signals transmitted and data-signal, and this processing unit also is back to this control device with control signal and data-signal; One encoder receives this control device institute's data signal and is encoded, and encoded data signals is passed this control device again back; One pulse generation unit produces pulse signal, and sends this control device to; One signal output apparatus, the data-signal of receiving and processing device; One transducer receives the data-signal of this processing unit, and is converted to compressed signal format and is back to this processing unit.
Above-mentioned system for treating signal in multimedia, its characteristics are that this first signal input apparatus is a digital tuner.
Above-mentioned system for treating signal in multimedia, its characteristics are that this first signal input apparatus is an analog tuner unit.
Above-mentioned system for treating signal in multimedia, its characteristics are, this analog tuner unit comprises analog tuner, a video decoder and an audio process, and wherein this analog tuner receives the audio ﹠ video electric wave, and this electric wave is sent to this audio process and this video decoder respectively.
Above-mentioned system for treating signal in multimedia, its characteristics are that this electric wave is launched by wherein a kind of device of satellite, television transmitting station and cable TV group that system is formed.
Above-mentioned system for treating signal in multimedia, its characteristics be, wherein a kind of for by memory card interface and group that USB is formed of the interface of this standard transmission.
Above-mentioned system for treating signal in multimedia, its characteristics are that this memory card interface is the wherein a kind of of safe digital card (Secure digital), memory stick (Memory Stick), multimedia card (Multimedia Card), SM storage card (Smart Media), CF Card Type (CompactFlash Type) I/II, IBM micro hard disk (Microdrive), memory stick PRO (Memory Stick PRO), safe digital card (SecureDigital) and group that XD forms.
Above-mentioned system for treating signal in multimedia, its characteristics are, this control device connects an external control unit, this external control unit is to shake the control module, and this shakes the control module and comprises a microprocessor and a transducer, wherein this transducer receives extraneous control signal and is sent to this microprocessor, and this microprocessor is deciphered is resent to this controller.
Above-mentioned system for treating signal in multimedia, its characteristics are that this transducer is an infrared ray sensor.
Above-mentioned system for treating signal in multimedia, its characteristics are, this signal output apparatus comprises a multitask standard voice processing unit and a video buffer, and this driving arrangement is audio frequency apparatus and video equipment, and this multitask standard voice processor transmits signals to audio frequency apparatus and video buffer transmits signals to video equipment.
Above-mentioned system for treating signal in multimedia, its characteristics be, this compressed signal format group that to be animation compression standard 1 formed with animation compression standard 2 wherein a kind of.
Above-mentioned system for treating signal in multimedia, its characteristics are that this encoder is the form that meets animation compression standard 2 with signal encoding, and this encoder links an internal memory.
Above-mentioned system for treating signal in multimedia, its characteristics are that this transducer is converted to compressed signal format with video and audio signal, and this compressed signal format is animation compression standard 1 and animation compression standard 2.
Above-mentioned system for treating signal in multimedia, it is characterized in that, this processing unit is supported digital record, and this processing unit comprises a processor, an internal memory and a hard disk, this processor links this internal memory and this hard disk, and this processor temporal data is in this internal memory, and this processor with data storing in this hard disk, and this processor also takes out the stored data of this hard disk by this internal memory.
Above-mentioned system for treating signal in multimedia, its characteristics are that this pulse generation unit is a multiple timings phase-locked loop generator.
Above-mentioned system for treating signal in multimedia, its characteristics are, but this control device is a programmed logic element.
Above-mentioned system for treating signal in multimedia, its characteristics are, but but but should the programmed logic element were the wherein a kind of of a scene program gate array or program logic device.
Above-mentioned system for treating signal in multimedia, its characteristics are that this control device comprises: a decoder, this decoder are a logical circuit, and this decoder is that binary numerical value is exported the value that is consistent with input, and this value is maintained fixed up to next input; One first controller receives the control signal that this decoder transmits, and to determine this control device signal is read or writes; One buffer, this buffer receives the signal of first controller and decoder, and temporarily stores this signal; One buffer receives the control signal of data-signal and this buffer of this decoder, the operation that makes this buffer read or write; One audio frequency multiplexer receives the signal of this buffer, and this audio frequency multiplexer will be sent to described encoder and described processing unit by the signal that this buffer transmitted; One video multiplexer, the signal of reception buffer, this video multiplexer will be sent to described encoder and described processing unit by the signal that this buffer passed; One transport stream multiplexer, the signal of reception buffer, this transport stream multiplexer transmits signals to described encoder and described processing unit; One triggers sensing cell, and this triggers sensing cell sensing one input signal, and sends this signal to described buffer and described interrupt control unit; And an interrupt control unit, this interrupt control unit receives the signal of this triggering sensing cell and described buffer, and this interrupt control unit transmits a signal to the element that is connected in described control device.
Above-mentioned system for treating signal in multimedia, its characteristics are that this buffer is one or eight a flip-flop.
Above-mentioned system for treating signal in multimedia, its characteristics are that this interrupt control unit transmits a signal to the element that is connected in described control device, and wherein this element is a processing unit.
Above-mentioned system for treating signal in multimedia, its characteristics be, this interrupt control unit comprises a plurality of and logic lock and at least one or logic lock, and this a plurality of and logic lock is connected to one or logic lock jointly.
Above-mentioned system for treating signal in multimedia, its characteristics are, this triggers sensing cell sensing one input signal, and this input signal is that replacement standard hardware interrupt vector, external control standard hardware interrupt vector, transducer standard hardware interrupt vector, video decoder standard hardware interrupt vector, memory card interface standards hardware interrupts vector or USB (universal serial bus) standard hardware interrupt vector are formed the wherein a kind of of group family.
Above-mentioned system for treating signal in multimedia, its characteristics are that this external control standard hardware interrupt vector, transducer standard hardware interrupt vector, video decoder standard hardware interrupt vector, memory card interface standards hardware interrupts vector are high level with the input signal of USB (universal serial bus) standard hardware interrupt vector.
Above-mentioned system for treating signal in multimedia, its characteristics are that the input signal of this replacement standard hardware interrupt vector is a low level.
Above-mentioned system for treating signal in multimedia, its characteristics are that this triggering sensing cell comprises a plurality of input buffers and a plurality of triggering sensing cell, and this input buffer connects this triggering transducer.
Above-mentioned system for treating signal in multimedia, its characteristics are that this interrupt control unit transmits a signal to the element that is connected in described control device, and this signal is non-maskable interrupts signal.
Effect of the present invention, be signal in order to the receiving digital video broadcast system, and the signal that is received is deciphered, handle, the last signal of again this having been handled is sent to the video display audio-visual apparatus, and circuit design of the present invention utilizes multiplexer to handle video and audio signal, so can reduce many hardware costs, and the quantity of video chip, and the present invention utilizes identical system's pulse signal, therefore reduced the problem of the time delay of video and audio frequency, make the design of circuit board be easier to, also can reduce board design personnel's design error and the problem in the manufacturing etc.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the load mode of digital signal;
Fig. 2 is a system block diagrams of the present invention;
Fig. 3 is a control device internal structure calcspar of the present invention;
Fig. 4 is Interrupt Control System figure of the present invention;
Fig. 5 is the cut-away view of Interrupt Control System of the present invention.
Wherein, Reference numeral:
The 1a-tv programme source, 1b-digital compression equipment
The 1c-satellite, 1d-radiovision launching base platform
The 1e-cable television system, the 1f-broadband communication network
1g-family, the 1h-automobile
1-first signal input apparatus
The 11-digital tuner, 12-analog tuner unit
The 121-analog tuner, the 122-video decoder
The 123-audio process
2-secondary signal input unit
The 21-memory card interface, the 22-USB (universal serial bus)
The 3-processing unit, the 31-processor
The 32-internal memory, the 33-hard disk
The 4-control device, the 41-decoder
42-first controller, the 43-buffer
The 44-buffer, 45-triggers sensing cell
The 451-input buffer, 452-triggers transducer
The 46-interrupt control unit
461-replacement standard hardware interrupt vector
462-external control standard hardware interrupt vector
463-transducer standard hardware interrupt vector
464-video decoder standard hardware interrupt vector
465-encoder standard hardware interrupt vector
466-memory card interface standards hardware interrupts vector
467-USB (universal serial bus) standard hardware interrupt vector
468-interruption masking buffer, 469-and logic lock
4691-or logic lock, the non-maskable interrupts signal of 4692-
47-audio frequency multiplexer, 48-video multiplexer
49-transport stream multiplexer
The 5-encoder, 6-transducer, 7-signal output apparatus
71-multitask standard voice processor, the 72-video buffer
8-external control unit, 9-pulse generation unit
Embodiment
See also Fig. 2, be system block diagrams of the present invention, by seeing among the figure that first signal input apparatus 1 receives the electric wave that comprises video and audio signal, and first signal input apparatus 1 transfers this electric wave to digital signal, so first signal input apparatus 1 comprises a digital tuner 11 and an analog tuner unit 12, and digital tuner 11 can directly receive the extraneous digital signal that is sent by satellite, television transmitting station or cable television system dealer; And analog tuner unit 12 comprises analog tuner 121, one video decoder 122 and an audio process 123, the analog tuner 121 of analog tuner unit 12 can receive extraneous by satellite, the analog signal that television transmitting station or cable television system dealer are sent, after this analog tuner 121 receives and comprises the electric wave of video and audio frequency, the part of video is carried out signal processing by video decoder 122, and the part of audio frequency is handled by audio process 123, the selected audio process 123 of the present invention be a multitask standard voice processor (Multi-standard sound processor, MSP).
In addition, signal input unit also comprises another secondary signal input unit 2, this secondary signal input unit 2 is the interface of conformance with standard transmission, the standard transmission interface of secondary signal input unit 2 of the present invention comprises storage card (Compact Flash) interface 21 and USB (universal serial bus) 22, memory card interface 21 of the present invention meets safe digital card (Secure digital), memory stick (Memory Stick), multimedia card (Multimedia Card), SM storage card (Smart Media), CF Card Type (CompactFlash Type) I/II, IBM micro hard disk (Microdrive), memory stick PRO (MemoryStick PRO), safe digital card (Secure Digital) and wherein a kind of specification of XD, therefore, as long as at the video that is contained in storage card and voice data or utilize USB to transmit the video that storage facilities comprised and the voice data of data, can data be imported in the system for treating signal in multimedia of the present invention by memory card interface 21 or USB (universal serial bus) 22.
Except signal input apparatus is arranged, when need one processing unit 3, this handles control signal and data-signal that device 3 received or passed back control device, and this handles device 3 and comprises a processor 31, an internal memory 32 and a hard disk 33, and processing unit 3 is supported digital record.
One control device 4 is arranged between signal input unit 1,2 and processing unit 3, this control device 4 is a synchronization video and audio frequency multiplexer, but be the programmed logic element, but as program logic device (programmable logic device, PLD) but or scene program gate array (FieldProgrammable Gate Array, FPGA), be used for controlling other module and do access, reading, coding or decoding etc., the internal structure of this control device 4 is described after a while again.
Be connected in the encoder 5 and transducer 6 of control device 4, this encoder 5 is encoded the signal that control device 4 is transmitted, and with this encoded signals pass control device 4 again back, encoder 5 of the present invention is the encoder of an animation compression standard 2, and transducer 6 is converted to compressed signal format with video and audio signal, and the compressible signal format of the present invention is animation compression standard 1 and animation compression standard 2.
In a microprocessing systems, must need a pulse generation unit 9, this pulse generation unit 9 produces pulse signal for the criterion of elements such as control device 4 or processor 31 as processing signals, and pulse generation unit of the present invention 9 is a multiple timings phase-locked loop generator.
Next after processor 31 is intact the signal processing that transmitted by control device 4, just this signal is delivered to signal output apparatus 7, this signal output apparatus 7 with the video of processor 31 and audio transmission to driving arrangement; Signal output apparatus 7 comprises a multitask standard voice processor 71 and a video buffer 72, multitask standard voice processor 71 is accepted the audio signal of processor 31, and this audio signal is converted to the receptible signal format of driving arrangement, and reach driving arrangement, equipment such as driving arrangement such as loudspeaker or some sound equipments, and video buffer 72 is accepted the vision signal of processor 31, similarly, this vision signal is converted to the receptible signal format of driving arrangement earlier, and reach its driving arrangement, as equipment such as display or TVs.
In addition, connect an external control unit 8 at control device 4, this outside control unit 8 transmits a control signal and gives control device 4, makes control device 4 carry out its control signal; In the present invention, external control unit 8 is to shake the control module, and this shakes the control module and comprises a microprocessor and a transducer (drawing does not show), after this transducer receives external signal, with after the microprocessor processes of this signal by external control unit 8, again this signal is sent to control device 4, and this transducer is an infrared ray sensor again, therefore, the user can utilize this outside control unit 8 to be sent to control device 4 control signal by wireless mode.
So as shown in the above description, first signal input apparatus 1 is sent to control device 4 with video and audio signal that secondary signal input unit 2 will have been handled by general input and output interface (General Input/Output), and control device 4 will select this signal to handle toward that module, after earlier video and audio signal being carried out the coding of animation compression standard 2, again signal is sent to driving arrangement or other recording storage medium by processing unit 3 and signal output apparatus 7, or video and audio signal be sent to transducer 6, carry out the compression of the animation compression standard 2 or the data format of animation compression standard 1, by processing unit 3 and signal output apparatus 7 data are sent to driving arrangement or other recording storage medium more at last, more than these control actions by external control unit 8 control signal is transferred to control device 4, and control device 4 is just carried out above-mentioned action.
See also Fig. 3, be control device internal structure calcspar of the present invention, control device 4 is on a logical circuit, connect number of modules, wherein comprise a decoder 41, one first controller 42, a buffer 43, a buffer 44, trigger sensing (edge detector) unit 45, an interrupt control unit (interrupt controller) 46, one audio frequency multiplexer 47, a video multiplexer 48, with a transport stream multiplexer (transport stream multiplexer) 49, below its function and connection relationship be described respectively:
At first processing unit 3 is sent to control device 4 by general input and output interface with the address and the data (as the instruction of address or processing unit 3) of processing unit 3, and control device 4 is passed signal back processor 31 again, makes processor 31 carry out a certain function such as address (addresses), chip selection (chipselect), write activation (write enable), data-transmission mode (data) or readiness (ready).
And data or signal are sent to the decoder 41 of control device 4 from the input pin (input pin) of control device 4, and in decoder 41, it is accepted the signal of processing unit 3 and deciphers, and as the address, use for next flow process in the control device 4.
Above-mentioned decoder 41 is a logical circuit, and reception input set (set of input), this input set is represented with binary numeral, and output meets the numerical value of input, in other words, the circuit of decoder 41 is that binary numerical value is exported and is maintained fixed constant with the input value and this value that are consistent.
After the address is decoded, just be sent to first controller 42, and make first controller 42 decide 4 pairs of signals of control device to read or write, when being write activity as if control device 4, then the data with decoder 41 are sent to buffer 43, and buffer 43 record data temporarily.
Be one or eight flip-flop (flip-flop) in buffer 44 modules, and this buffer 44 is carried out the action of reading or writing having received after the writing activation (write enable), read activation (read enable) of decoder 41, transfer of data preparation (data ready), address code control signals such as (addresses code).
After the audio signal that audio frequency multiplexer 47 receives from buffer 44, with the destination of this audio signal decision audio frequency, as processing unit 3 or encoder 5 etc.; After the vision signal of video multiplexer 48 same reception buffers 44, and determine this vision signal will be sent to that resume module, as processing unit 3 or encoder 5 etc.
Transport stream multiplexer 49 will determine to transmit the stream signal and be sent to encoder 5 or processing unit 3.
Simultaneously, when triggering sensing cell 45 is high level as if the signal that senses input triggering sensing cell 45, trigger sensing cell 45 and will transmit a signal to interrupt control unit 46 and buffer 44, expression needs an interruption demand, and the module that can import interrupt signal comprises encoder 5, video decoder 41, transducer 6, memory card interface 21, external control unit 8 or USB (universal serial bus) 22, after above-mentioned module transmits an interrupt signal, represent this device that the interruption demand is arranged, when triggering sensing cell 45 receives high level signal, trigger sensing cell 45 and just transmit a signal to interrupt control unit 46.
This interrupt control unit 46 will transmit a non-maskable interrupts (non-maskable interrupt, NMI) signal is to the output pin position of control device 4, and this non-maskable interrupts is high interrupt level, even can interrupt criteria hardware interrupts (standard hardware interrupt).
See also Fig. 4, be Interrupt Control System figure of the present invention, this Interrupt Control System comprises replacement standard hardware interrupt vector (Reset IRQ) 461, external control standard hardware interrupt vector 462, transducer standard hardware interrupt vector 463, video decoder standard hardware interrupt vector 464, encoder standard hardware interrupt vector 465, memory card interface standards hardware interrupts vector 466, USB (universal serial bus) standard hardware interrupt vector 467, trigger sensing cell 45, interrupt control unit 46 and non-maskable interrupts signal 4692, the signal that the standard hardware interrupt vector 461 of wherein resetting is interrupted demand pin position by the replacement of control device 4 is controlled, and when being set at low level (low level), just transmit a replacement interrupt signal and give control device 4, require reset system; External control standard hardware interrupt vector 462 is controlled by the signal that the external control device of control device 4 interrupts demand pin position, and when being set at high level (high level), just transmitting an external control interrupt signal and give control device 4; Transducer standard hardware interrupt vector 463 is controlled by the signal of the transducer interruption demand pin position of control device 4, when in the signal flow (signalflow) of transducer 6 or data flow (data flow) in the time of will being transferred to control device 4, just make transducer standard hardware interrupt vector 463 be set at high level, just transmit a transducer interrupt signal and give control device 4, with interrupt control unit, and passing to system in the data of transducer 6; Video decoder standard hardware interrupt vector 464, the signal that is interrupted demand pin position by the video decoder of control device 4 is controlled, and when being set at high level, just transmit a video decoder interrupt signal and give control device 4, when video decoder 41 desires sent signal or data control device 4 to or desire interrupt system, just making video decoder interrupt demand pin position was high level; Encoder standard hardware interrupt vector 465, the signal that is interrupted demand pin position by the encoder of control device 4 is controlled, and when being set at high level, just transmit an encoder interrupt signal and give control device 4, when encoder 5 desires send signal or data to control device 4, just making encoder 5 interrupt demand pin position is high level, comes interrupt control unit; Memory card interface standards hardware interrupts vector 466, the signal that is interrupted demand pin position by the memory card interface of control device 4 is controlled, and when being set at high level, just transmit a memory card interface interrupt signal and give control device 4, when being stored card, inserts the memory card interface of system: fashionable, just making memory card interface interrupt demand pin position is high level, comes interrupt control unit, and can make the signal of storage card or data reach in the system by memory card interface; USB (universal serial bus) standard hardware interrupt vector 467, the signal that is interrupted demand pin position by the USB (universal serial bus) of control device 4 is controlled, and when being set at high level, just transmit a USB mouth interrupt signal and give control device 44, when the equipment with USB (universal serial bus) 22 was connected to the USB (universal serial bus) 22 of system, just making USB (universal serial bus) interrupt demand pin position was that high level is with interrupt control unit.
As any one said elements (replacement standard hardware interrupt vector 461, external control standard hardware interrupt vector 462, transducer standard hardware interrupt vector 463, video decoder standard hardware interrupt vector 464, encoder standard hardware interrupt vector 465, memory card interface standards hardware interrupts vector 466 is passed to the signal of USB (universal serial bus) standard hardware interrupt vector 467 and is triggered sensing cell 45, make triggering sensing cell 45 send one and interrupt desired signal to interrupt control unit 46, and this interruption desired signal will be set interrupt control unit 46, and interrupt control unit 46 will be handled this signal, the last USB (universal serial bus) standard hardware interrupt vector 467 of transmitting again arrives the output of control device 4, and transfers to the processing unit 3 of system again.
See also Fig. 5, cut-away view for Interrupt Control System of the present invention, be the necessary logic element of Interrupt Control System shown in the figure, the logic element of this Interrupt Control System comprises replacement standard hardware interrupt vector 461, external control standard hardware interrupt vector 462, transducer standard hardware interrupt vector 463, video decoder standard hardware interrupt vector 464, memory card interface standards hardware interrupts vector 466, USB (universal serial bus) standard hardware interrupt vector 467, input buffer 43, trigger sensing cell 45, interruption masking buffer 468, and logic lock (AND logic) 469, or logic lock (OR logic) 4691 and non-maskable interrupts signal 4692.
As shown in the above description, the present invention utilize multiple logic chip again coupled circuit design in order to the signal of receiving digital video broadcast system, and the signal that is received is deciphered, handle, the last signal of again this having been handled is sent to the video display audio-visual apparatus, and circuit design of the present invention utilizes multiplexer to handle video and audio signal, so can reduce many hardware costs, and the quantity of video chip, and the present invention utilizes identical system's pulse signal, therefore can reduce the time delay problem of video and audio frequency, by system design of the present invention, make the design of circuit board be easier to, also can reduce board design personnel's design error and the problem in the manufacturing etc.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of claim of the present invention.
Claims (26)
1, a kind of system for treating signal in multimedia is characterized in that, comprises:
One first signal input apparatus receives the electric wave that comprises video and audio signal, and transfers this electric wave to digital signal;
One secondary signal input unit is the interface of a standard transmission;
One control device couples with this first signal input apparatus and this secondary signal input unit, is a synchronization video and audio frequency multiplexer;
One processing unit accept this control device institute's control signals transmitted and data-signal, and this processing unit also is back to this control device with control signal and data-signal;
One encoder receives this control device institute's data signal and is encoded, and encoded data signals is passed this control device again back;
One pulse generation unit produces pulse signal, and sends this control device to;
One signal output apparatus, the data-signal of receiving and processing device;
One transducer receives the data-signal of this processing unit, and is converted to compressed signal format and is back to this processing unit.
2, system for treating signal in multimedia according to claim 1 is characterized in that, this first signal input apparatus is a digital tuner.
3, system for treating signal in multimedia according to claim 1 is characterized in that, this first signal input apparatus is an analog tuner unit.
4, system for treating signal in multimedia according to claim 3, it is characterized in that, this analog tuner unit comprises analog tuner, a video decoder and an audio process, wherein this analog tuner receives the audio ﹠ video electric wave, and this electric wave is sent to this audio process and this video decoder respectively.
5, system for treating signal in multimedia according to claim 1 is characterized in that, this electric wave is launched by wherein a kind of device of group that satellite, television transmitting station and cable television system are formed.
6, system for treating signal in multimedia according to claim 1 is characterized in that, wherein a kind of for by memory card interface and group that USB is formed of the interface of this standard transmission.
7, system for treating signal in multimedia according to claim 6, it is characterized in that this memory card interface is the wherein a kind of of safe digital card, memory stick, multimedia card, SM storage card, CF Card Type I/II, IBM micro hard disk, memory stick PRO, safe digital card and group that XD forms.
8, system for treating signal in multimedia according to claim 1, it is characterized in that, this control device connects an external control unit, this external control unit is to shake the control module, and this shakes the control module and comprises a microprocessor and a transducer, wherein this transducer receives extraneous control signal and is sent to this microprocessor, and this microprocessor is deciphered is resent to this controller.
9, system for treating signal in multimedia according to claim 8 is characterized in that, this transducer is an infrared ray sensor.
10, system for treating signal in multimedia according to claim 1, it is characterized in that, this signal output apparatus comprises a multitask standard voice processing unit and a video buffer, this signal output apparatus is with the video and audio transmission to a driving arrangement of this processor, and this driving arrangement is audio frequency apparatus and video equipment, and this multitask standard voice processor transmits signals to audio frequency apparatus and video buffer transmits signals to video equipment.
11, system for treating signal in multimedia according to claim 1 is characterized in that, this compressed signal format group that to be animation compression standard 1 formed with animation compression standard 2 wherein a kind of.
12, system for treating signal in multimedia according to claim 1 is characterized in that, this encoder is the form that meets animation compression standard 2 with signal encoding, and this encoder links an internal memory.
13, system for treating signal in multimedia according to claim 1 is characterized in that, wherein this transducer is that video and audio signal are converted to compressed signal format, and this compressed signal format is animation compression standard 1 and animation compression standard 2.
14, system for treating signal in multimedia according to claim 1, it is characterized in that, this processing unit is supported digital record, this processing unit comprises a processor, an internal memory and a hard disk, this processor links this internal memory and this hard disk, this processor temporal data is in this internal memory, and in this hard disk, this processor also takes out the stored data of this hard disk by this internal memory to this processor with data storing.
15, system for treating signal in multimedia according to claim 1 is characterized in that, this pulse generation unit is a multiple timings phase-locked loop generator.
16, system for treating signal in multimedia according to claim 1 is characterized in that, but this control device is a programmed logic element.
17, system for treating signal in multimedia according to claim 16 is characterized in that, but but but should the programmed logic element be the wherein a kind of of a scene program gate array or program logic device.
18, system for treating signal in multimedia according to claim 1 is characterized in that, this control device comprises:
One decoder, this decoder are a logical circuit, and this decoder is that binary numerical value is exported and the value that is consistent of input, and this value is maintained fixed up to next input;
One first controller receives the control signal that this decoder transmits, and to determine this controller signal is read or writes;
One buffer, this buffer receives the signal of first controller and decoder, and temporarily stores this signal;
One buffer receives the control signal of data-signal and this buffer of this decoder, the operation that makes this buffer read or write;
One audio frequency multiplexer receives the signal of this buffer, and this audio frequency multiplexer will be sent to described encoder and described processing unit by the signal that this buffer transmitted;
One video multiplexer, the signal of reception buffer, this video multiplexer will be sent to described encoder and described processing unit by the signal that this buffer passed;
One transport stream multiplexer, the signal of reception buffer, this transport stream multiplexer transmits signals to described encoder and described processing unit;
One triggers sensing cell, and this triggers sensing cell sensing one input signal, and sends this signal to described buffer and described interrupt control unit; And
One interrupt control unit, this interrupt control unit receives the signal of this triggering sensing cell and described buffer, and this interrupt control unit transmits a signal to the element that is connected in described control device.
19, system for treating signal in multimedia according to claim 18 is characterized in that, this buffer is one or eight a flip-flop.
20, system for treating signal in multimedia according to claim 18 is characterized in that, this interrupt control unit transmits a signal to the element that is connected in described control device, and wherein this element is a processing unit.
21, system for treating signal in multimedia according to claim 18 is characterized in that, this interrupt control unit comprises a plurality of and logic lock and at least one or logic lock, and this a plurality of and logic lock is connected to one or logic lock jointly.
22, system for treating signal in multimedia according to claim 18, it is characterized in that, this triggers sensing cell sensing one input signal, and this input signal is that replacement standard hardware interrupt vector, external control standard hardware interrupt vector, transducer standard hardware interrupt vector, video decoder standard hardware interrupt vector, memory card interface standards hardware interrupts vector or USB (universal serial bus) standard hardware interrupt vector are formed the wherein a kind of of group family.
23, system for treating signal in multimedia according to claim 22, it is characterized in that this external control standard hardware interrupt vector, transducer standard hardware interrupt vector, video decoder standard hardware interrupt vector, memory card interface standards hardware interrupts vector are high level with the input signal of USB (universal serial bus) standard hardware interrupt vector.
24, system for treating signal in multimedia according to claim 22 is characterized in that, the input signal of this replacement standard hardware interrupt vector is a low level.
25, system for treating signal in multimedia according to claim 18 is characterized in that, this triggering sensing cell comprises a plurality of input buffers and a plurality of triggering sensing cell, and this input buffer connects this triggering transducer.
26, system for treating signal in multimedia according to claim 18 is characterized in that, this interrupt control unit transmits a signal to the element that is connected in described control device, and this signal is non-maskable interrupts signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100839111A CN100352269C (en) | 2004-10-12 | 2004-10-12 | System for treating signal in multimedia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100839111A CN100352269C (en) | 2004-10-12 | 2004-10-12 | System for treating signal in multimedia |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1761295A CN1761295A (en) | 2006-04-19 |
| CN100352269C true CN100352269C (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100839111A Expired - Fee Related CN100352269C (en) | 2004-10-12 | 2004-10-12 | System for treating signal in multimedia |
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| CN (1) | CN100352269C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107957861B (en) * | 2017-12-11 | 2021-02-09 | 中标软件有限公司 | Method and device for instantly playing audio data in sound card signal input channel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212568A (en) * | 1998-08-13 | 1999-03-31 | Tcl王牌电子(深圳)有限公司 | Video instant playback system |
| CN1489379A (en) * | 2003-08-04 | 2004-04-14 | 上海源创数码科技有限公司 | Electronic photo frame with television receiving function |
| CN1525482A (en) * | 2003-02-25 | 2004-09-01 | 英保达股份有限公司 | Multimedia playing device with multiple functions integrated |
-
2004
- 2004-10-12 CN CNB2004100839111A patent/CN100352269C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212568A (en) * | 1998-08-13 | 1999-03-31 | Tcl王牌电子(深圳)有限公司 | Video instant playback system |
| CN1525482A (en) * | 2003-02-25 | 2004-09-01 | 英保达股份有限公司 | Multimedia playing device with multiple functions integrated |
| CN1489379A (en) * | 2003-08-04 | 2004-04-14 | 上海源创数码科技有限公司 | Electronic photo frame with television receiving function |
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| CN1761295A (en) | 2006-04-19 |
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