WO2009117964A1 - Code controlled audio play device and play system - Google Patents

Code controlled audio play device and play system

Info

Publication number
WO2009117964A1
WO2009117964A1 PCT/CN2009/071016 CN2009071016W WO2009117964A1 WO 2009117964 A1 WO2009117964 A1 WO 2009117964A1 CN 2009071016 W CN2009071016 W CN 2009071016W WO 2009117964 A1 WO2009117964 A1 WO 2009117964A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
audio
module
playback
data
control
Prior art date
Application number
PCT/CN2009/071016
Other languages
French (fr)
Chinese (zh)
Inventor
何登科
Original Assignee
北京华旗资讯数码科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • G11B19/08Control of operating function, e.g. switching from recording to reproducing by using devices external to the driving mechanisms, e.g. coin-freed switch
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34Indicating arrangements

Abstract

A code controlled audio play system includes a code carrier with the code information and the exterior information, a code identifying device and an audio play device. The code identifying device is for identifying the code information of the code carrier and for processing the code information to generate the code data which is used for controlling the play and output of the audio file of the audio play system. The system sets the exterior information corresponding to the code information uniquely on the code carrier simultaneously, thereby the user only needs the simple exterior information identification, then clicks the code carrier of the corresponding position of the exterior information using the code identifying device, which can control the play and output of the audio file without operating the function keys of the audio play device.

Description

Encoding control audio playback apparatus and a playback system

[Skilled]

The present invention relates to a system for audio playback audio file playback of the audio playback apparatus control by the encoding, in particular, it relates to an audio file for obtaining identification coding mode, thereby controlling audio file player audio playback apparatus and playback system.

【Background technique】

With the development of electronic technology, the audio playback device applications gain popularity, especially functional diversification audio playback device, get the convenience of the user's favorite. Existing audio file play MP 3 MP3 player, the function has a single cylinder from MP3 music playback, video playback with the extended function, the recording function.

However, the functionality of the existing audio playback device in the function diversified and complicated at the same time, but can not meet the user's visual perception of traditional music playing, for example, to their favorite songs, read the lyrics, if necessary, or when practicing a song, you need to listen to songs while watching the lyrics, in the case of repeat enjoy in paragraph unfamiliar or the like, or learning the language, but also in case of need to read this text, watch and listen through carried interactions, or listening and watching at the same time, to enhance the effectiveness of learning, in order to better achieve the purpose of language learning. And, the audio playback apparatus diverse functions while bring the complicated, complex and cumbersome function key operation of the interface software program, time consuming, and thus undesirable for the user, especially, the user the face of the new features of the new operating playback device, or a particular user needs to operate complex functions playback devices, such as for the operation of electronic products are not familiar with the elderly and children, adds to the difficulty of operation.

In addition, under the current trend of increasing importance for the protection of intellectual property work, protect the legitimate rights of creators of works has become the direction of attention, in particular, with the increasing development of network, works to protect the creators of intellectual property rights more It is an important issue facing the current intellectual property protection.

Thus, while the audio player function diversification, making the operation of the audio playback device facilitation, improving human-computer interaction barrel facilitation, became the subject of the current development process in the audio player to be solved.

In addition, the audio playback device to adapt to current trends in intellectual property protection, the protection of intellectual property rights in the dissemination of audio files and use process, has become an important issue currently growing concern. [SUMMARY]

The present invention provides a convenient means for encoding the audio player operating a control, man-machine having a cartridge out operation, the cartridge operation step, the user saves time.

The present invention also provides a coding system to facilitate the control of audio playback audio files legitimate use, in favor of the legality of the use and dissemination of audio files, protecting transmission audio work in intellectual property.

To solve the above technical problem, the present invention provides an apparatus for encoding an audio playback control for receiving coded data identifying the external apparatus transmitted, and further to play the appropriate audio file, comprising: an audio decoding control module, audio files decoding the analog signal to generate the playback output; memory, the audio output module to provide an audio playback apparatus and a power supply module; association module further includes an audio and a receiving module, identifying coded data in said memory means stores external unique to associated audio file, the encoded data receiving module receives an external apparatus encoding identification transmitted, the associated audio processing module receives the encoded data and read the corresponding further audio files associated with the decoded audio decoding control module the associated audio file to generate an analog signal, and then outputs the audio output from the playback module.

The present invention is based on the above technical scheme, said coding means further includes encryption identification module, the audio playback apparatus further comprises a decryption module, the encryption module identification coding apparatus according to the coded data after encrypting via the digital output module transmitted to the audio player, the audio playback apparatus decryption module decrypts transmitted to the audio processing module is associated.

The present invention further provides a system for coding audio playback control, including coding vectors, including the coding information and surface information, said micro-coded coding information is said information surface profiling information, coding information with the information surface of is uniquely associated; identification encoding means includes an optical system, image sensor module, image processing module, a controller and an output module, the optical system reads and obtains the encoded information encoded optical signal carrier, the image sensing module receives and optical signal processing to an image electric signal, the controller controls the image processing module processes the electrical signal is encoded image data, and outputs the encoded data through the output module; audio playback means, including a receiving module, a decoding control module, a memory module and an audio output; wherein said audio playback device further includes an audio association module, the surface information uniquely associated with a corresponding audio files in memory of the audio playback apparatus according to the stored encoding vectors, encoding the encoded data to the code vector information and the information surface, respectively Uniquely associated with the associated audio file, encoding the identifying means outputs the encoded data to the audio playback device, the audio processing module and associated read the encoded data uniquely associated with a corresponding audio file, generating an audio file, decoding the control module processes the audio file, and output through the audio output module. From the foregoing, the present invention controls the encoding audio playback system, by encoding information and the surface information uniquely associated audio file to be played simultaneously with the desired code carrier arranged on, the surface of the user according to the information on the code carrier simply by click for encoding identification means reading the coded information of the corresponding location on the surface of the information code carrier, to control the audio playback device for playback of audio files, the cartridge program operation, improved cartridge illustrative interactive use, reducing the cumbersome operation step , to facilitate the use of different user operations.

Further, the present invention encodes control audio playback system, the code recognition means and the audio playback means provided corresponding encryption module and a decryption module, the audio playback apparatus only encrypted encoded data to an illegal process audio related files received through respectively, whereby to prevent illegal use and dissemination of the associated audio file, thereby protecting intellectual property rights.

BRIEF DESCRIPTION

FIG. 1 is a system block diagram of an audio playback system according to the present invention, the encoding control.

FIG 2 is a block diagram of the audio playback apparatus identification coding system of the present invention encoding control. 3 is a block schematic diagram of an audio playback system of the audio playback apparatus of the present invention encoding control. FIG 4 is a configuration diagram of another encoding audio playback system of the present invention to control an audio playback apparatus of the embodiment.

【detailed description】

To further illustrate the technical means of the present invention to achieve the intended purpose and effect taken, the following embodiments and the accompanying drawings, the audio playback system according to the present invention, the encoding control principle, structural characteristics and effects of the detailed description: ^ next.

Please refer to FIG. 1, the audio player control system of the present invention is encoded by reading the coded clicking, further digital audio playback system of the audio file player, based on 3, the audio playback system according to the present invention, encoding of a conventional audio playback control apparatus includes a plate system coded information and code carrier surface information of 1; encoding identification means 1, code recognition means an identification code vector encoded information 2, processing for generating encoded data; and an audio playback apparatus 3, receives the encoded recognition apparatus 1 processing encoded data generated, play the audio file and output the encoded data uniquely associated. Further, in the case where the 3 video playback audio file while playing an audio playback apparatus according to the present invention is equally applicable to the playback control which audio files.

Encoding the vector of the invention is a coding information 2 [¾ coding type, i.e., do not easily perceived coding. Specifically, for example, the human eye does not readily identifiable code. Encoding vector encoded information and surface information Technology 2 discloses details see China Patent No. 02122633.4. Coding information with the information printed on the surface of the code carrier 2 correspond in content associated with consistency. For example, the coding region of the carrier 2 is divided into units of one thousand if, within each unit region, the printed song information such as artist name, song title, album, song belongs, the type of songs, correspondingly, the printing unit area made of the same information at the same song encoded information if thousand printed, printing the coded information recognition result does not affect the surface of the information, under normal circumstances, only the brightness such that the plane of the code carrier 2 is reduced by 10%, so that the human no effect on visual recognition effect. Different coding information indicating information on different surfaces, such as China patent 02122633.4 discloses a combination of the type of coding information content is typically sufficient to indicate the surface of the information, therefore, may be different from the printed surface of the information associated with other For example, personal information or background about the singer's song and so on.

2, the housing 1 encoding identification means for identifying the encoded information code carrier 2, having an external 11, can be designed to use the pen to facilitate gripping, the housing 11 is provided inside the optical system 12, an image sensing module 13, the image processing module 14, a controller 15, an output module 17 and power module 16 to provide coded identification carrier. An illumination optical system 12 includes an optical system 12a and 12b of the lens optical system, wherein the illumination optical system 12a for illuminating the code carrier 2, the reflected light projection 12b of the optical signal transmission to the image sensor module 13 generates an electrical signal by an optical lens system, The image processing module 14 receives the electric signal processing for generating encoded data. In addition, the system may also be provided a filter 12c, the optical signal to filter out interference of one thousand, thereby obtaining accurate information encoded optical signal. The controller 15 controls the coded data obtained by processing, through the output module outputs the encoded data 17. In a particular embodiment, the output module 17 may use a wired data interface data-transfer interface, a data interface such as USB, IEEE1394 data interface may use a wireless data transmission, such as infrared, Bluetooth, wireless USB or the like. Further, the external monitor screen is provided encoding identification means 18 and a control switch 19, for use in the present coding identification device.

As shown, in the present invention, the audio playback apparatus 31 3 comprises a receiving module 3, the audio decoder control module 32, a memory 33, an audio correlation module 34 and an audio output module 35, wherein the audio decoder control module 32 are integrated as a unit the processor can control the audio playback data processing apparatus 3, but also may be decoded playback audio data. Encoding vector memory 33 stores the encoded audio information corresponding to an associated file, an audio file associated with encoded information by encoding the data information uniquely associated with the surface 2 of the code carrier. The receiving module 31 receives the encoded data encoded identification apparatus 1, the audio coded data association module 34, and reads the corresponding audio file associated with the transmission control module 32 to the audio decoder performs decoding processing, and thus decoded audio data associated with the audio file through The audio output module 35 outputs playback.

Receiving module audio playing apparatus 3 is a wireless receiving module or data interface screen, in a particular embodiment, the wireless receiver module may employ infrared or Bluetooth or radio frequency receiver module; the use of a data interface interface, you can use a USB interface or an IEEE1394 interface, or RS232 interface.

Please refer to FIG. 4, the audio decoding audio player control module 3 includes a controller 32a and an audio decoder 32b, the data processing controller 32a controls the audio playing apparatus 3, the audio decoder decodes the audio data only, by the controller 32 a playback output control. Audio association module 34 is used by the receiving module 31 receives the encoded data to the corresponding processing, and reads the audio encoded data file associated with the process, the process of generating an audio file associated uniquely coded data corresponding to the audio data, then the audio decoding control module 32, the audio decoder 32b after decoding, and then outputs the played through the audio output module 35.

In a specific embodiment of the audio playback apparatus according to the present invention 3, the audio associated with the audio module 34 may be integrated into one decoding control module, integrated into one single chip, for example, audio module 34 associated with the integrated controller 32a, the audio decoder control module 32 also has an audio processing function associated with the module, the controller may use the controller. The audio module 34 associated with the hardware basis of the audio decoder control module 32 may program the audio related to a firmware program module (Fi r are earned) manner burned into read-only memory of the controller 32b. Thus, the audio decoder control module 34 first by the controller firmware 32a associated audio file associated with audio processing module, generates encoded data uniquely corresponding audio data, and then decodes the audio data by the audio output module 35 by the audio decoder 32b output playback.

In a particular embodiment, the audio associated with the module firmware program comprises a control program for controlling the playback of audio files, e.g., for controlling play of the audio file, random playback, stop, pause, volume, classical / pop / rock mode selection playback control program and the like, thereby, an audio module may implement the functions associated with control of the audio playback. Control instructions audio control program encoded data output from the encoding identification means corresponding to the audio playing apparatus 3 corresponding to the audio decoding control module 32 processes the control command audio playing apparatus 3, thereby controlling the corresponding audio related files corresponding output play. Further, the audio playback program associated with the control module, may be an audio file playing function is added to the prior art audio control program associated with the audio module may be provided for further extension of the lyrics display. Of course, the audio module can also be associated with control of each audio file, such as, for different songs, different control information, such as the singer of the song, the background, the album, and other related information. In addition to the specific embodiment, the other audio related embodiment using firmware module (F i rmware) described above is written to a read only memory of the audio decoder control module audio playback device 3, may also be designed as separate software programs the execution of the program, and then attached to the audio playback apparatus 3, and thus the corresponding function.

Stored in the memory 33 within the audio playing apparatus 3 is associated with an audio file, information is encoded carrier surface 2 only an audio file corresponding to the generated audio data file. In this particular embodiment, the audio data file is audio data file MP 3, the following will be described as an example, a method of generating an audio file associated with the step of:

1) the encoded data corresponding to the audio file uniquely associated with the coded data to generate an audio sequence file corresponding to the file name;

2) The file name of the audio file corresponding to the sequence of audio data associated with the coded data to generate merged file, write the file header associated with the encoded data file; an audio file associated;

4) storing the associated audio file to the memory of the audio playback device.

In the above-described method of generating an audio file associated with the coded data is coded identification means corresponding to a unique code carrier 2 encoded information, the encoded data may be digital, or used as a marker to identify the other symbols. A vector encoding the encoded information is arranged in a miniature image dot being printed on the code carrier 2, the encoding apparatus 1 having the identification encoding process of encoding information processing program identification information, wherein, the establishment of a unique coding information corresponding to the index information the index information is written encoding identification read-only memory device 1, thereby encoding information corresponding to the encoded data uniquely coded identification apparatus 1 acquires generate encoded information can be identified, and the encoded data by encoding identification means 1 is output to the audio playing apparatus 3.

After the audio playing apparatus 3 according to the present invention may also include audio encryption module and the audio decryption module in generating the associated audio file, the audio files into a packaged file, the audio decoder control module based on the prior art audio technology 32 firmware program (F ir earned are) embedded in the encryption algorithm, the encryption algorithm using the generated audio data file and the encoded information packed data files are encrypted, in order to achieve the audio data files are encrypted. When encrypted, the audio playback apparatus may be employed hardware unique identification number of 3, such as a product serial number as an encryption key.

In the present invention, a coded identification apparatus may further include encoding encryption module, when coding an identification code recognition means coded information carrier 1 and processing for generating encoded data, said encoding to the encryption module transmits the encrypted encoded audio data playback means 3, in a particular embodiment can be employed will be encrypted, the audio playback apparatus after receiving the encoded data, the encoded data is decrypted by the audio decryption module 3 encoding identification apparatus 1 hardware devices unique identification numbers added to the encoded data, and then processed by the audio file and the associated output to an analog electric signal output from the audio decoding generate control module 32 decodes, after the playback by the output module 35 outputs the audio. As described above, the encoding apparatus of the present invention is to identify a specific embodiment, the encoded information need to be subjected to recognition processing encoded data, in addition, may be provided in the audio playback apparatus 3 encoded information processing program, and index information of the coded information, thus, only the coding apparatus 1 acquires the identification information generating encoded video data, the audio playback apparatus 3 is processed by the video data to generate encoded data encoded information. Alternatively, in particular embodiments, the encoding for audio playback system of the present invention, the control cylinder can also be integrated in an audio playback apparatus 3 encoding identification apparatus 1, in this case, a code recognition apparatus further includes an audio decoder control module, the audio processing module and associated memory, so that, after identification encoding information encoding apparatus identification code carrier 2 is directly processed to generate encoded data by encoding identification device controller 1 controls the audio decoder control module decoding the coded data corresponding to the unique associated audio file, after encoding by the output means identifying data playback apparatus 1.

In summary, the present invention encoding the audio player control system, by clicking a vector encoding identification coding apparatus 2, acquires the encoded information, can be easily performed so that the audio playing apparatus 3 corresponding to the audio file and the associated audio file after decoding and then playing the audio output module 3 is output by the audio playback device. Since the code carrier 2 coding information corresponding to the surface of the printed information is easily perceived overt image information, such as visual visible text / image / image, and further, even when the user is not familiar with the functions of the audio playing apparatus 3 is complicated operations, but also identified by profiling the surface information, to correspond to operation of the encoding apparatus of the present invention to identify a single click on a cylindrical surface of the information carrier which encode corresponding to the selected region 2, and thus control the required play audio files, thereby such that between the user and the cartridge is easy to interact broadcasting system, and reduce operating program, save the operation time. In the audio playback system of the present invention encode control, audio playback apparatus and decrypting the encrypted identification encoding means encodes the encryption module 1 is 3, so that a user using the broadcasting system of the present invention, to ensure the transmission of audio data files and safety and legality of the use of, protect intellectual property rights protection. In addition, the encoded information is not easily perceived by people from a miniature image printing, therefore, during use, it can guarantee the print obtained by copying code carrier 2 with easy property to prevent unauthorized use.

Claims

Claims
1, the audio player controlling an encoding apparatus, data encoding means for encoding identification received external transmission, and then play the appropriate audio file, comprising:
Audio decoder control module, the audio file playback analog signal generate output decoded; a memory module and an audio output providing an audio player power supply module;
Characterized by further comprising a module and a receiving module associated audio, the coded data corresponding to the unique identification in said memory means stores the external audio file associated with the receiving module identification coding means for receiving the transmitted external data, the encoded audio data association module receives further processing and reads the corresponding audio file associated with the audio decoding control module decodes the file associated with the audio signal to generate an analog, and then outputs the audio output from the playback module.
2, the audio playback apparatus according to the encoding control as claimed in claim 1, wherein said coded data written to the file header and coded data corresponding to the generated audio data file and the associated audio package generated according to.
3, the audio playback apparatus according to the encoding control claim 1, wherein the content of the associated audio file includes audio data, file names, storage paths, and the encoded data.
4, the audio playback apparatus according to the encoding control of claim 1, wherein the association module comprises an audio playback control program audio files.
5, the audio playback apparatus according to claim 4, wherein the encoding control claim, wherein said module further comprises audio associated with a read only memory, the playback control program is written to ROM firmware.
6, the audio playback apparatus according to claim 4 or encoding control according to claim 5, wherein said playback control program includes play / pause / pause, loop / shuffle, the control program classical / rock / pop selection mode.
7, an audio playback apparatus according to claim 4 or encoding control according to claim 5, wherein said control program further includes a playback control program segment read / read continuously.
8, according to the audio playback apparatus of the encoding control as claimed in claim 5, wherein the audio module comprises a controller associated with said read only memory is integral with the controller.
9, the audio playback apparatus according to the encoding control of claim 1, wherein the association module is an audio control program playback audio files.
10, the audio playback apparatus according to the encoding control as claimed in claim 9, wherein said playback control program includes play / pause / pause, loop / shuffle, the control program classical / rock / pop selection mode.
11, the audio playback apparatus according to the encoding control 9 or claim 10, wherein said playback control program is a control program according to the audio decoding module written to read-only memory.
12, the audio playback apparatus according to claim 9 or encoding control according to claim 10, wherein said playback control program is a program stored in the memory.
13, the audio playback apparatus according to claim encoding control according to claim 1, wherein, the receiving module or receiving module is a wireless data interface.
14, an encoding control audio playback system, comprising:
Encoding vector comprising encoded information and surface information, said micro-coded coding information is said information surface profiling information, coding information uniquely associated with the surface of the information;
Identification encoding means includes an optical system, image sensor module, image processing module, a controller and an output module, the optical system reads and vectors encoding the encoded information to obtain an optical signal, an image sensing module receives the optical signal and image processing of an electric signal, the controller controls the image processing module processes the electrical signal is encoded image data, and outputs the encoded data through the output module;
Audio playback means, including a receiving module, a decoding control module, a memory, and an audio output module; wherein,
The audio playback apparatus further comprises a surface associated audio information in the memory module, the audio playback device stores a unique code carrier associated with a corresponding audio file, the encoding information of said encoded data with a code carrier surfaces are uniquely associated with the audio information associated with the document, said coded identification means outputs the encoded data to the audio playback device, the audio processing module and associated read the encoded data uniquely associated with a corresponding audio file, generated audio file, the decoding control module processes the audio file, and output through the audio output module.
15, audio playback system according to claim encoding control claim 14, wherein the output module of said coded identification means comprises a wireless transmitter module, receiver module according to the audio playback device with a wireless transmitter module comprises a corresponding output module the wireless receiver module.
16. The audio playback system encoding control according to claim 14, wherein said coded identification means comprises a data interface module output interface, an audio playback module receiving means corresponding to said data interface includes an output interface module the data interface interface.
17. The encoding control audio playback system of claim 14, wherein the audio playback device associated with the audio module comprises a control program to control the playback of the audio file associated with encoded data associated with the audio module according to uniquely associated with the audio file.
18. The audio playback system according to the encoding control as claimed in claim 17, wherein said encoding means further comprises an encryption module identification, the audio playback apparatus further comprises a decryption module, said code recognition means after the encoded data the encryption module is transmitted to the audio player, the audio playback apparatus decrypts transmitted to the audio processing module associated.
19. The audio playback system encoding control according to claim 18, wherein the encryption module identification coding apparatus according to the hardware identification number is not the encoding means is added to the encoded data of a force densely populated.
PCT/CN2009/071016 2008-03-28 2009-03-26 Code controlled audio play device and play system WO2009117964A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN 200810103019 CN101546582B (en) 2008-03-28 2008-03-28 Audio playing device controlled by codes
CN200810103018.9 2008-03-28
CN200810103019.3 2008-03-28
CN 200810103018 CN101546595A (en) 2008-03-28 2008-03-28 Audio playing system controlled by codes

Publications (1)

Publication Number Publication Date
WO2009117964A1 true true WO2009117964A1 (en) 2009-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/071016 WO2009117964A1 (en) 2008-03-28 2009-03-26 Code controlled audio play device and play system

Country Status (1)

Country Link
WO (1) WO2009117964A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1402859A (en) * 1999-12-01 2003-03-12 西尔弗布鲁克研究有限公司 Audio player with code sensor
CN1761981A (en) * 2003-03-18 2006-04-19 跳蛙企业股份有限公司 Scanning apparatus
CN1889182A (en) * 2005-06-28 2007-01-03 古振国 Video/audio player bar code wireless remote-controlling device and method thereof
CN2884326Y (en) * 2005-11-29 2007-03-28 袁志辉 Multi-functional, mobile audio-frequency device combined with bar-code scanner
CN101075430A (en) * 2006-05-19 2007-11-21 北京华旗数码技术实验室有限责任公司 System for requesting Karook apparatus by point reader

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1402859A (en) * 1999-12-01 2003-03-12 西尔弗布鲁克研究有限公司 Audio player with code sensor
CN1761981A (en) * 2003-03-18 2006-04-19 跳蛙企业股份有限公司 Scanning apparatus
CN1889182A (en) * 2005-06-28 2007-01-03 古振国 Video/audio player bar code wireless remote-controlling device and method thereof
CN2884326Y (en) * 2005-11-29 2007-03-28 袁志辉 Multi-functional, mobile audio-frequency device combined with bar-code scanner
CN101075430A (en) * 2006-05-19 2007-11-21 北京华旗数码技术实验室有限责任公司 System for requesting Karook apparatus by point reader

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