CN2812220Y - A portable multimedia video & audio player - Google Patents
A portable multimedia video & audio player Download PDFInfo
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- CN2812220Y CN2812220Y CN 200520061781 CN200520061781U CN2812220Y CN 2812220 Y CN2812220 Y CN 2812220Y CN 200520061781 CN200520061781 CN 200520061781 CN 200520061781 U CN200520061781 U CN 200520061781U CN 2812220 Y CN2812220 Y CN 2812220Y
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Abstract
The utility model relates to a portable multimedia audiovisual player. The utility model comprises a portable housing, an audiovisual interface, a keyboard circuit, a main controller, a D/A converter, a digital function circuit, a USB interface and a power circuit which comprises a plurality of power electrodes; the utility model also comprises a hard disk memory and a buffer memory, wherein an outlet of the buffer memory is connected with a data interface of the main controller and a data outlet of the hard disk memory is connected with an inlet of the buffer memory or also connected with the data interface of the main controller. Besides, the utility model also comprises a power supply managing circuit which is provided with one or more control passages, wherein each control passage comprises triggering terminals or a single-stage or multi-stage control passage, each triggering terminal is connected with the corresponding data interface of the main controller, wherein circuits between a driving power supply introducing terminal of the hard disk memory and the power electrodes are respectively connected with the control passages. The portable multimedia audiovisual player of the utility model has the advantages of large storage capacity, multiple play functions and economical power energy consumption.
Description
Technical field
The utility model relates to a kind of multimedia play equipment, and more particularly, the utility model relates to a kind of digital multimedia playback equipment of portable multi-function.
Background technology
Rapid raising along with high speed development of national economy and living standards of the people, the digital multimedia technology develops rapidly, the capacity density of portable storer is more and more higher, volume is more and more littler, many kinds of handheld digital multimedia play equipments have appearred on the market, for example MP3 player, digital audio tape, Digital camera, digital camera etc.The inner removable memory that all is built-in with storage signal of these devices, for example USB flash disk of flash memory (flash memory), portable hard drive, band USB interface and flash memories or the like.Generally be used for the MP3 music player of listening to the music, do not adopt hard disk but employing capacity less flash memory usually, so power consumption is less, can satisfy the appreciation of people's long duration and can not interrupt appreciating and bring numerous disturbing because electrical source consumption is too fast.That is, existing portable digital multimedia player is mainly used in the storage and the broadcast of voice signal, and can not store the very big video cartoon of broadcast capacity etc. basically, one of them major reason is that the displaying video animation need increase portable magnanimity portable hard drive and the corresponding function module, portable hard drive rotation and high-frequency digital controlled signal are too fast for portable power supplies consumption, be difficult to satisfy the requirement that people enjoy, so always force people will carry more battery and more renew battery continually, except bother the enjoyment performance that is directed at low, return environment, economy is brought bigger pressure, and practicality is very poor.
Aspect the digital multimedia playback equipment, it is that 03207337.2 Chinese patent application file discloses a kind of vehicle mounted MP 3 and the multi-functional DVD player of DVD that application number is arranged, its USB standard interface one end is connected with flash disk, portable hard drive, the other end inserts the main control chip, this chip reads file data and classifies by the file suffixes name, sorted file is sent into corresponding decoding chip respectively, distinguish decoded digital audio and video signals accessing to audio/analog signal converter, after power amplification circuit amplifies, export the left and right acoustic channels of automobile audio again to; Vision signal then inserts the video LCD display.This electromechanics source is obtained from the automobile audio plug, be respectively digital receiver circuit and the main control chip provides power supply by power circuit, the sound signal of digital receiver circuit output exports the left and right acoustic channels of automobile audio to after power amplification circuit amplifies.Tool claims: this machine not only has outside first three advantage for vehicle-mounted audiovisual system, also has the MP3 function concurrently, and the function of its mass download and storage network audio/video file can greatly be expanded people's audio-visual space.But as its oneself statement like that, the high-powered automobiles battery that this machine must adopt automobile to carry provides electric energy, and obviously also need by the massage storage on the vehicle-mounted digital device; And these portable and even audio-visual broadcasts pocket of using with oneself for the people between unmarried walking are difficult to realize.
Summary of the invention
At the above-mentioned shortcoming of prior art, the technical purpose that the utility model will reach is that a kind of portable multimedia audio and video player will be provided, and this audio and video player has that memory capacity is big, playing function is various and the advantage of power consumption economy concurrently.
For this reason, technical solution of the present utility model is a kind of portable multimedia audio and video player, this audio and video player comprises portable housing, audio-visual interface, keyboard circuit, master controller, digital to analog converter, realize the digital functional circuit of multimedia function, USB interface and the power circuit that comprises some power electrodes, and described digital functional circuit also comprises harddisk memory and buffering storer, the outlet of this memory buffer is connected with the data-interface of described master controller, and the data outlet of this harddisk memory is connected with the inlet of this memory buffer or holds concurrently and is connected with the data-interface of described master controller; Described audio and video player also comprises the power supply management circuit with or one or more control path, every the control path comprises trigger terminal and list or Multistage Control path, each trigger terminal is connected with the corresponding data interface of described master controller, wherein, be connected with the control path in the driving power leading-in terminal of described harddisk memory and the circuit between its power electrode.
The utility model is little at the memory capacity of tradition " walkman (Walkmam) " class portable media player, the simple shortcoming of function, utilize the state-of-the-art technology progress of portable hard drive aspect dexterously, portable hard drive is integrated on the conventional portable multimedia player and forms one, thereby for greatly expanding the media interface function of portable media player, increase recreational laying a good foundation, again in view of even the energy consumption and the capacity density of portable hard drive are greatly optimized at present, but its energy consumption remains the bottleneck that the marketization of restriction portable media player is popularized, the utility model is introduced the power supply management module that can do single-stage or multistage conversion to voltage or power, turn round at high frequency, the device of high energy consumption is implemented the managing power consumption of different echelons, and adopt the running for a long time of low energy consumption device to replace the frequent startup of high energy consumption device and close, some particular interfaces are taked to ensure that level prevents the misoperation power consumption, thereby reduce whole energy consumption level effectively.The more applications functional module is set up in the reduction of energy consumption tolerable conversely in device, effectively promote the marketing of device.
The further improvement of the utility model on managing power consumption comprises:
Described memory buffer is a synchronous random access memory.Described digital functional circuit comprises the music decoding circuit, and described music decoding circuit is incorporated in the described master controller, is connected with the control path in the power supply leading-in terminal of described master controller and the circuit between its power electrode.
Described audio-visual interface comprises loudspeaker, earphone socket, microphone, LCDs and driving circuit thereof; Be connected with the control path in the power supply leading-in terminal of described liquid crystal display drive circuit and the circuit between its power electrode.
Described power supply management circuit comprises the voltage transitions chip and the voltage stabilizing chip of COMS type.
Described USB interface comprises USB Peripheral Interface and USB master control interface; The power supply of described USB Peripheral Interface is introduced between circuit and its power electrode and is connected with described control path.
The power supply of described USB master control interface is introduced between circuit and its power electrode and also is connected with described control path.
On significantly energy-conservation basis, the utility model increase can be listened to the frequency modulation transmitter module of music on the audio/video file by other frequency modulation equipments: described audio and video player also comprises the frequency modulation transmitter module.The input end of this module connects the data-interface of described digital to analog converter, and the output terminal of this frequency modulation transmitter module is connected with emitting antenna.Wherein, described emitting antenna comprises the earphone that is inserted on the described earphone socket and the line of earphone.Described frequency modulation transmitter module is provided with the adjustment circuit of adjusting transmission frequency and emissive power.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model audio and video player embodiment.
Fig. 2 is the circuit diagram of master controller among Fig. 1.
Fig. 3 is the synoptic diagram of LCDs circuit among Fig. 1.
Fig. 4 is the synoptic diagram of the part power supply management circuit of LCDs among direct Fig. 3.
Fig. 5 is the synoptic diagram of the part LCDs power supply management circuit of connection master controller.
Fig. 6 is the synoptic diagram of the controller of hard disk among Fig. 1 and power supply management circuit, USB Peripheral Interface.
Fig. 7 is the socket of hard disk controller among Fig. 6 and the synoptic diagram of signal circuit.
Fig. 8 is the signal circuit synoptic diagram on the installing plate of hard disk controller among Fig. 6.
Fig. 9 is the synoptic diagram of keyboard circuit among Fig. 1.
Figure 10 is the circuit diagram of USB master control interface and power supply management among Fig. 1.
Figure 11 is the synoptic diagram of digital to analog converter and audio frequency and frequency modulation output circuit among Fig. 1.
Figure 12 is the synoptic diagram of record of Fig. 1 center line and microphone recording circuit.
Figure 13 is the circuit diagram of memory buffer among Fig. 1.
Figure 14 is to be the management circuit synoptic diagram of USB Peripheral Interface and hard disk controller power supply among Fig. 6.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, be depicted as audio and video player embodiment schematic block circuit diagram of the present utility model.This audio and video player comprises portable housing (not shown), audio-visual interface, keyboard circuit (keyboard) 10, master controller (MCU) 20, digital to analog converter (A/D Converter) 30, realize the digital functional circuit of multimedia function, USB interface 40 and the power circuit (PWR) 50 that comprises some power electrodes, described digital functional circuit also comprises harddisk memory (M-HDD) 60 and buffering storer (SDRAMBuffer) 70, the outlet of this memory buffer 70 is connected with the data-interface of described master controller 20, and the data outlet of this harddisk memory 60 is connected with the inlet of this memory buffer 70 and holds concurrently and is connected with the data-interface of described master controller 20; Described audio and video player also comprises the power supply management circuit (PWR Managing) 80 with or one or more control path, every the control path comprises trigger terminal 81 and list or Multistage Control path 82, each trigger terminal 81 is connected with the corresponding data interface of described master controller, wherein, be connected with control path 82 in the driving power leading-in terminal of described harddisk memory 60 and the circuit between its power electrode.Described memory buffer 70 is a synchronous random access memory.
Described digital functional circuit comprises music decoding circuit (MP3/4 Coding/Decoding), described music decoding circuit is incorporated in the described master controller 20, is connected with control path 82 in the power supply leading-in terminal of described master controller 20 and the circuit between its power electrode.
Described audio-visual interface comprise loudspeaker (SPK) 90, earphone socket 91, microphone (MIC) 92 and discharge circuit (Operational Amplifier) 97 thereof, audio output circuit (Audio out) 98, LCDs (LCD) 93 and driving circuit thereof, circuit audio sound-recording interface (Audio I/O) 94 and recording module (JFR Recorder) 95; All be connected with control path 82 in the power supply leading-in terminal of described liquid crystal display drive circuit and the circuit between its power electrode.
Described power supply management circuit 80 comprises the voltage transitions chip and the voltage stabilizing chip (seeing each accompanying drawing subsequently for details) of COMS type.
Described USB interface 40 comprises USB Peripheral Interface (USB Slave port) 41 and USB master control interface (USB Host port) 42; The power supply of described USB Peripheral Interface 41 is introduced between circuit and its power electrode and is connected with described control path 82.The power supply of described USB master control interface 42 is introduced between circuit and its power electrode and also is connected with described control path 82.
Described audio and video player also comprises frequency modulation transmitter module (FM Transmit) 100, and the input end of this frequency modulation transmitter module 100 connects the data-interface of described digital to analog converter 30, and the output terminal of this frequency modulation transmitter module 100 is connected with emitting antenna ANT.
Described emitting antenna ANT comprises earphone (E-phone) 96 that be inserted on the described earphone socket 91 and the line of earphone.
Described frequency modulation transmitter module 100 is provided with the adjustment circuit (not shown) of adjusting transmission frequency and emissive power.
As Fig. 2, be depicted as the circuit diagram of MCU master controller 20 among the utility model audio and video player embodiment.Be integrated with the music decoding circuit in this MCU master controller 20, its inside is formed with the control path of power supply management by software; Many pins on it are provided with the data-interface of other functional circuits such as HDD-Status, 5642-EN, HDO/I-RESET, HDD-CSI, WE, OE, CODE in addition ... (* 5), TFT ... (* 3), TFTD[0-7], XD[0-31], XA[0-23], GPIOA24-31, etc. with the control interface that is connected with the trigger terminal of each control path such as ChargeDone/Ctl, PWR-ON, Host-En, MVDD-ON etc.
Fig. 3 is the synoptic diagram of LCDs 93 circuit among the utility model audio and video player embodiment.This LCDs LCD280-220 comprises built-in driving circuit and terminal circuit, this terminal circuit comprises signal terminal TFT-HSYNC/VSYNC/DCLK, the TFT-D0-D7 etc. of direct MCU data-interface, also comprise power supply leading-in terminal LEDVCC, TVDD, this power supply leading-in terminal respectively with Fig. 4 in part power supply management circuit link.
As Fig. 4, be depicted as the synoptic diagram of part power supply management circuit of power supply leading-in terminal LEDVCC, the TVDD of LCDs among direct Fig. 3.This part power supply management circuit comprises the LED power supply management circuit of being made up of chip U25, U26, and this circuit directly is connected with the LEDVCC power supply leading-in terminal of LCDs; This part power supply management circuit also comprises the screen picture power supply management circuit of being made up of U20, the TVDD power supply leading-in terminal of the direct LCDs of this circuit, and also this two parts circuit partly is connected with management circuit among Fig. 5 by the MPWR terminal again.
As Fig. 5, be depicted as the synoptic diagram of the part LCDs power supply management circuit that connects master controller MCU.This part management circuit comprises the low-power consumption mu balanced circuit of being made up of mu balanced circuit chips such as U8, U9, U13, also comprise the control path that low power consumption voltage control chips such as U4, U5 are formed, the trigger terminal of this control path connects the Interface Terminals (ginseng Fig. 2) such as PWR-ON, ADINO of MCU.
As Fig. 6, be depicted as the synoptic diagram of controller, USB Peripheral Interface and the power supply management circuit thereof of harddisk memory among the utility model audio and video player embodiment.This hard disk controller is the chip of M5642 type, and this hard disk controller comprises IDEA0-2, IEDECS ..., data pin such as IDED0-15, these data pin directly and the respective terminal among the MCU be connected, this hard disk controller also comprises power pins MVDD; What be connected with this controller has a USB Peripheral Interface USB2.0 Slave Port, the direct USB-PWR of the power pins of this USB Peripheral Interface, and provide direct power management for the USB Peripheral Interface by Control of Voltage chip U18: the trigger terminal MVDD-ON (ginseng Fig. 2) that this Control of Voltage chip U18 comprises the terminal that is connected with extraneous power supply MVDD and is connected with MCU; And extraneous power supply MVDD provides power management (ginseng Figure 14) by chip U15.
As Fig. 7, be depicted as the socket of hard disk controller among Fig. 6 and the synoptic diagram of signal circuit.This socket signal circuit comprises RP1, RP2, RP3, RP4 resistance coupling array, via resistance coupling array and this socket the IDED0-15 data pin of hard disk controller is converted into pins such as XDX0-15, continues to be connected with circuit among Fig. 8.
As Fig. 8, be depicted as the signal circuit synoptic diagram on the installing plate of hard disk controller among Fig. 6.Comprise signal voltage transitions chip U14, U11, U12 on this installing plate, data pin signals such as the XDX0-15 on the hard disk controller, IDED0-15 are by the pin DD[0-15 on these chips], HDD-EN, XA[0-23], CSI, HDD-CSI, WE, OE, HD0-RESET, 5642-EN etc. are transferred on the corresponding data pin of MCU.
As Fig. 9, be depicted as the synoptic diagram of keyboard circuit among the utility model audio and video player embodiment.This keyboard circuit comprises button K2, K3, K4, K5, and button one end connects lithium battery VBAT and VDD2.7V power electrode respectively, and the other end connects the pins such as GPIO A12/13-25/30 of MCU respectively.
As Figure 10, be depicted as the circuit diagram of USB master control interface and power supply management among the utility model audio and video player embodiment.The signal of USB master control interface USB HOST is connected with the respective pins of MCU by pin HostD+/D-, and its power pins VDD-USB is connected with the respective pins of control path chip U6, and this chip U6 triggering pin HOST-EN is connected with the MCU respective pins.
As Figure 11, be depicted as the synoptic diagram of digital to analog converter and audio frequency and frequency modulation output circuit among the utility model audio and video player embodiment.This digital to analog converter chip U17 comprises signal data pin CODEC-MCLK/BCLK/DAC/ADC/TRCK, the IIC-CLK/DATA etc. that are connected with MCU, this digital to analog converter chip U17 also comprises the ERCH-OUT/ELCH-OUT pin that is connected with earphone socket PHONEJACK-STEREO respective terminal among this figure, and the pin A-L/R that is connected with frequency modulation emission output circuit FMTRANSMIT respective terminal, and all be connected with antenna module ANT3, ANT4 in frequency modulation emission output circuit FMTRANSMIT and the earphone socket PHONEJACK-STEREO circuit.This digital to analog converter chip U17 also comprises pin ELCH-IN/ERCH-IN, the EMIC-IN that is connected with microphone recording circuit respective terminal with the record of Figure 12 center line.
As Figure 12, be depicted as the synoptic diagram of record of the utility model audio and video player embodiment center line and microphone recording circuit.This microphone recording circuit comprises microphone MIC1, operational amplifier chip U16, and its lead-out terminal EMIC-IN is connected with digital to analog converter respective pins among Figure 11.Circuit audio sound-recording circuit comprises chip U24, and its signal pins IIC-CLK/DATA is connected simultaneously with the respective pins of MCU and digital to analog converter, and its audio frequency output pin ELCH-IN/ERCH-IN is connected with the digital to analog converter respective pins.
As Figure 13, be depicted as the circuit diagram of memory buffer among the utility model audio and video player embodiment.This memory buffer comprises chip U3, comprises the pin XA[0-23 that shares with the hard disk signal pins on the chip U3] and its exclusive signal pins XD[0-31], these signal pins all connect the respective pins of MCU in order to carry data-signal.
As Figure 14, being depicted as among the utility model audio and video player embodiment is the management circuit synoptic diagram of USB Peripheral Interface and hard disk controller power supply.Hard disk controller power pins MVDD comes from the power supply USB-PWR of USB Peripheral Interface, and power supply USB-PWR is controlled by control path chip U15, the control path chip U15 other end connects lithium battery power supply electrode VBAT, and its trigger terminal ChargeDone/Ctl is connected with the MCU respective terminal, and the power supply and the hard disk controller power supply of USB Peripheral Interface are controlled.
Claims (10)
1, a kind of portable multimedia audio and video player, this audio and video player comprises portable housing, audio-visual interface, keyboard circuit, master controller, digital to analog converter, realize the digital functional circuit of multimedia function, USB interface and the power circuit that comprises some power electrodes, it is characterized in that: described digital functional circuit also comprises harddisk memory and buffering storer, the outlet of this memory buffer is connected with the data-interface of described master controller, and the data outlet of this harddisk memory is connected with the inlet of this memory buffer or holds concurrently and is connected with the data-interface of described master controller; Described audio and video player also comprises the power supply management circuit with or one or more control path, every the control path comprises trigger terminal and list or Multistage Control path, each trigger terminal is connected with the corresponding data interface of described master controller, wherein, be connected with the control path in the driving power leading-in terminal of described harddisk memory and the circuit between its power electrode.
2, portable multimedia audio and video player as claimed in claim 1, it is characterized in that: described digital functional circuit comprises the music decoding circuit, described music decoding circuit is incorporated in the described master controller, is connected with the control path in the power supply leading-in terminal of described master controller and the circuit between its power electrode.
3, portable multimedia audio and video player as claimed in claim 1 or 2 is characterized in that: described audio-visual interface comprises loudspeaker, earphone socket, microphone, LCDs and driving circuit thereof; Be connected with the control path in the power supply leading-in terminal of described liquid crystal display drive circuit and the circuit between its power electrode.
4, portable multimedia audio and video player as claimed in claim 1 or 2 is characterized in that: described power supply management circuit comprises the voltage transitions chip and the voltage stabilizing chip of COMS type.
5, portable multimedia audio and video player as claimed in claim 1 or 2 is characterized in that: described USB interface comprises USB Peripheral Interface and USB master control interface; The power supply of described USB Peripheral Interface is introduced between circuit and its power electrode and is connected with described control path.
6, portable multimedia audio and video player as claimed in claim 5 is characterized in that: the power supply of described USB master control interface is introduced between circuit and its power electrode and also is connected with described control path.
7, portable multimedia audio and video player as claimed in claim 1 or 2, it is characterized in that: described audio and video player also comprises the frequency modulation transmitter module, the input end of this frequency modulation transmitter module connects the data-interface of described digital to analog converter, and the output terminal of this frequency modulation transmitter module is connected with emitting antenna.
8, portable multimedia audio and video player as claimed in claim 7 is characterized in that: described emitting antenna comprises the earphone that is inserted on the described earphone socket and the line of earphone.
9, portable multimedia audio and video player as claimed in claim 7 is characterized in that: described frequency modulation transmitter module is provided with the adjustment circuit of adjusting transmission frequency and emissive power.
10, portable multimedia audio and video player as claimed in claim 1 or 2 is characterized in that: described memory buffer is a synchronous random access memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061781 CN2812220Y (en) | 2005-07-15 | 2005-07-15 | A portable multimedia video & audio player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061781 CN2812220Y (en) | 2005-07-15 | 2005-07-15 | A portable multimedia video & audio player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812220Y true CN2812220Y (en) | 2006-08-30 |
Family
ID=36938611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520061781 Expired - Fee Related CN2812220Y (en) | 2005-07-15 | 2005-07-15 | A portable multimedia video & audio player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2812220Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280131A (en) * | 2010-06-11 | 2011-12-14 | 鲁润泽 | AVI audio-video player by using integral angle technology for widening sound field and enhancing resolution |
| US8812140B2 (en) | 2011-05-16 | 2014-08-19 | Jogtek Corp. | Signal transforming method, transforming device through audio interface and application program for executing the same |
-
2005
- 2005-07-15 CN CN 200520061781 patent/CN2812220Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280131A (en) * | 2010-06-11 | 2011-12-14 | 鲁润泽 | AVI audio-video player by using integral angle technology for widening sound field and enhancing resolution |
| CN102280131B (en) * | 2010-06-11 | 2014-08-20 | 鲁润泽 | AVI audio-video player by using integral angle technology for widening sound field and enhancing resolution |
| US8812140B2 (en) | 2011-05-16 | 2014-08-19 | Jogtek Corp. | Signal transforming method, transforming device through audio interface and application program for executing the same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |