CN1148757C - Multimedia player - Google Patents
Multimedia player Download PDFInfo
- Publication number
- CN1148757C CN1148757C CNB991198816A CN99119881A CN1148757C CN 1148757 C CN1148757 C CN 1148757C CN B991198816 A CNB991198816 A CN B991198816A CN 99119881 A CN99119881 A CN 99119881A CN 1148757 C CN1148757 C CN 1148757C
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- controller
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- pcmcia card
- multimedia player
- signal
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Abstract
The present invention relates to a multimedia player. A traditional player has the defects of low integration degree, low data updating speed and incapability of volume expansion. The present invention comprises a controller, an MP3 decoder, a digital-analog converter, a plurality of operating keys, a display and a PCMCIA card slot, wherein the controller is used for controlling the operation of the whole media; the MP3 decoder is connected with the controller and is used for carrying out MP3 decoding to a signal obtained from the controller. The digital-analog converter is connected with the decoder and is used for carrying out digital-analog conversion to a signal output by the decoder. The operating keys are connected with the controller and are used for inputting an operating stage. The display is connected with the controller and is used for displaying an operating state. The PCMCIA card slot is connected with the controller and is used for externally connected with a PCMCIA card.
Description
The present invention relates to a kind of multimedia player, relate in particular to and a kind ofly can play the multimedia player that the MP3 music can be carried out digital sound recording again.
Along with further developing and the increase of memory span of Digital Signal Processing, MP3 player and digital audio tape etc. multiple hand-held multimedia player have appearred, for example on the market.The inner storer that all is built-in with storage signal of these devices generally all adopts erasable storer, for example flash memory (flashmemory).Voice signal with digital store in storer.For the MP3 player, if change data in the storer, all be at present by RS232 or parallel port with communicate the data in the updated stored device after computing machine is connected.There is following shortcoming in this structure: 1, the conformability of system is poor.Be same or analogous, that is to say owing to the building block such as devices such as MP3 player, digital audio tapes has many, can be shared if they are combined, therefore, caused the function singleness of device.2, renewal or data download speed are slower.Owing to adopt the serial or parallel interface to connect, limited the transmission speed of data.3, the extendible capacity of storer is poor.As mentioned above, present player mostly adopts built-in storer, therefore, can't carry out dilatation to it.And the development of memory technology at present is extremely rapid, causes existing player mostly can't upgrade by dilatation.
The object of the present invention is to provide a kind of multimedia player, it can improve widely and upgrades and the speed of data download, and the while is extended storage easily again.
Another object of the present invention is to provide a kind of multimedia player of integrating multiple function.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of media player, comprising:
Controller is used to control the running of whole medium;
The MP3 decoding device links to each other with described controller, is used for the signal that obtains from described controller is carried out MP3 decoding;
D/A links to each other with described demoder, is used for the signal of described demoder output is carried out D/A switch;
A plurality of operating keys; Link to each other with described controller, be used for the input service state;
Display links to each other with described controller, is used for display working condition;
The pcmcia card groove links to each other with described controller, is used for external described pcmcia card; And
At least one pcmcia card includes flash memory in the described pcmcia card.
Another kind of multimedia player provided by the invention is also to comprise on above-mentioned basis:
Speech codec links to each other with described controller, is used for digital signal is carried out Code And Decode;
Microphone is used to pick up voice signal;
A/D converter, its input end links to each other with described microphone, and its output terminal links to each other with described speech coding demoder, is used for the simulation conversion of signals from described microphone input is become digital signal, and output terminal links to each other with described speech coder.
Describe embodiments of the invention and effect in detail below in conjunction with accompanying drawing.
Fig. 1 is the profile synoptic diagram of multimedia player of the present invention;
Fig. 2 shows the situation that pcmcia card is connected with computing machine;
Fig. 3 is the block scheme of an embodiment of multimedia player of the present invention;
Fig. 4 is the block scheme of another embodiment of multimedia player of the present invention.
As shown in Figure 3, Fig. 3 is the block scheme of one embodiment of the present of invention.As can be seen from the figure, multimedia player of the present invention includes: controller 101, display 102, MP3 decoding device 103, D/A converter 104, loudspeaker 105, operating key 106 and pcmcia card groove 107.Controller 101 is core components of whole device, and it is controlling the work of whole device.Display 102 is used to show the duty of multimedia player.MP3 decoding device 103 slave controllers 101 receive audio digital signal, and its form by MP3 decoded, then giving D/A 104 through the digital data transmission of decoding, convert thereof into simulating signal by D/A 104 after, play by loudspeaker 105.
What link to each other with controller 101 has an a PCMCIA (Personal Computer Memory CardInternatinal Association, personal computer memory card international federation) draw-in groove 107, can connect a pcmcia card (as shown in Figure 1) by this card draw-in groove 107.Can built-in flash memory in the pcmcia card.After in pcmcia card being inserted into this pcmcia card groove 107, controller 101 just can be given MP3 decoding device 103 this signal and be carried out follow-up work such as decoding then by readout data signal (audio digital signal) in the flash memory of this draw-in groove 107 from pcmcia card.
Operating key 106 links to each other with controller 101, is used for the duty of input media, and its button can comprise that effect is similar to play button on the sound-track engraving apparatus, fast forward button, rewind key, stop key, Pause key etc.
As mentioned above, the multimedia player of present embodiment is removed the storer of the storage signal in the conventional player from player, replaces pcmcia card groove 107, and storer is placed in the pcmcia card.During work pcmcia card is inserted in this draw-in groove 107, so just can equally with conventional apparatus works.The advantage of this structure is: because pcmcia card can take off from player, therefore, can directly link to each other this general pcmcia card with the pcmcia card interface of computing machine, carry out Data Update and download.Therefore, the communication speed of computing machine and pcmcia card only depends on the speed of the flash memory in the computing machine read-write pcmcia card.According to test, general computing machine can reach 3Mbit/S to the writing rate of pcmcia card, with traditional pass through that RS232 or parallel port are upgraded or the speed downloaded to compare raising very big.Another advantage is: along with the increase of flash memory continuous advancement in technology and its capacity, can be by upgrading the memory capacity that pcmcia card expands multimedia player easily, and the media player that need not more to renew, thereby reduced user's spending widely.
In the present embodiment, display 102 can adopt LCD.For dwindling the volume of multimedia player, also can remove loudspeaker 105, replace the audio output (not shown), the user utilizes headphone to listen to.Controller 101 can utilize CPU and corresponding application software to realize.
The profile of multimedia player shown in Figure 3 as shown in Figure 1,2 is main frame among the figure, 1 for being built-in with the pcmcia card of flash memory.During work, pcmcia card 1 can be inserted in the pcmcia card groove 107 on the main frame 2.In the time will upgrading pcmcia card 1, pcmcia card 1 is dialled down from main frame 2, be inserted into then in the pcmcia card interface of computing machine 3, carry out Data Update (referring to Fig. 2) by computing machine 3.
Fig. 4 shows another embodiment of multimedia player of the present invention.Multimedia player shown in Figure 4 is the improvement on Fig. 3.Speech codec 208, A/D converter 209 and microphone 210 have been increased among Fig. 4.Speech codec 208 links to each other with controller 201.When this multimedia player is play the signal that has been recorded in the pcmcia card, read signal the pcmcia card of controller 201 on being inserted into pcmcia card groove 207, and send speech codec 208 to and decode, signal through decoding sends D/A 204 again to and changes, and is play by loudspeaker 205.For further reducing cost, can make chip piece to MP3 decoding device 203 and speech codec 208.
When this multimedia player 2 recorded speech, voice convert electric signal (simulating signal) to through microphone 210, convert to be sent in the speech codec 208 after the digital signal through A/D converter 209 then and encode, be written in the flash memory in the pcmcia card that is inserted on the pcmcia card groove 207 by controller 201 again.
As mentioned above, the embodiment of Fig. 4 is the function that has increased digital sound recording on the basis of Fig. 3.Thereby provide a kind of multimedia player of function.
Claims (4)
1, a kind of media player comprises:
Controller is used to control the running of whole medium;
The MP3 decoding device links to each other with described controller, is used for the signal that obtains from described controller is carried out MP3 decoding;
D/A links to each other with described demoder, is used for the signal of described demoder output is carried out D/A switch;
A plurality of operating keys; Link to each other with described controller, be used for the input service state;
Display links to each other with described controller, is used for display working condition;
The pcmcia card groove links to each other with described controller, is used for external described pcmcia card; And
At least one pcmcia card includes flash memory in the described pcmcia card.
2, multimedia player as claimed in claim 1 is characterized in that, also comprises:
Speech codec links to each other with described controller, is used for digital signal is carried out Code And Decode;
Microphone is used to pick up voice signal;
A/D converter, its input end links to each other with described microphone, and its output terminal links to each other with described speech codec, is used for the simulation conversion of signals from described microphone input is become digital signal, and output terminal links to each other with described speech coder.
3, multimedia player as claimed in claim 1 is characterized in that, also comprises a loudspeaker, links to each other with described D/A, is used to play sound.
4, multimedia player as claimed in claim 1 is characterized in that, described display is a LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991198816A CN1148757C (en) | 1999-10-28 | 1999-10-28 | Multimedia player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991198816A CN1148757C (en) | 1999-10-28 | 1999-10-28 | Multimedia player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1303097A CN1303097A (en) | 2001-07-11 |
| CN1148757C true CN1148757C (en) | 2004-05-05 |
Family
ID=5281172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991198816A Expired - Lifetime CN1148757C (en) | 1999-10-28 | 1999-10-28 | Multimedia player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1148757C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7653928B2 (en) * | 2002-08-30 | 2010-01-26 | Sony Corporation | Remote user interface for media player |
| US7564678B2 (en) * | 2005-02-11 | 2009-07-21 | Plantronics, Inc. | Adapting device for a portable device |
| US7686215B2 (en) * | 2005-05-21 | 2010-03-30 | Apple Inc. | Techniques and systems for supporting podcasting |
| JP2007243716A (en) * | 2006-03-09 | 2007-09-20 | Sony Corp | System, device, method and program for indicating reproducing status |
| CN201570282U (en) * | 2009-12-08 | 2010-09-01 | 深圳市七彩虹科技发展有限公司 | Media player with low clock jitter |
-
1999
- 1999-10-28 CN CNB991198816A patent/CN1148757C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1303097A (en) | 2001-07-11 |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INVENTEC APPLIANCES (SHANGHAI) ELECTRONICS CO., LT Free format text: FORMER NAME OR ADDRESS: SHANGHAI ELECTRONIC TECHNOLOGY CO., LTD., YINGYEDA GROUP |
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| CP03 | Change of name, title or address |
Address after: 200233 Shanghai City Guiqin Road No. 7 Patentee after: Inventec (Shanghai) Electronics Co., Ltd. Address before: 200233 Shanghai City Guiqin Road No. 7 Patentee before: Yingyeda Group (Shanghai) Electronic Technology Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING Z-GOOD TECHNOLOGY SERVICE CO., LTD. Free format text: FORMER OWNER: YINGHUADA (SHANGHAI) ELECTRONICS CO LTD. Effective date: 20140513 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200233 XUHUI, SHANGHAI TO: 100085 HAIDIAN, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140513 Address after: 100085 Beijing city Haidian District No. 33 Xiaoying Road 1 1F06 room Patentee after: BEIJING ZHIGU TECHNOLOGY SERVICES CO., LTD. Address before: 200233 Shanghai City Guiqin Road No. 7 Patentee before: Inventec (Shanghai) Electronics Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20040505 |
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| CX01 | Expiry of patent term |