• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a mobile phone capable of reproducing digital audio data stored in advance when a user requests reproduction, and performing a voice call with a counterpart when a call request signal is detected. An infrared signal receiver 10 for receiving the audio data; A decoder 20 for restoring the received infrared signal; A flash memory 33 for storing the restored data; An MPEG decoder 40 for decoding the stored data into playable audio data; An amplifier 100 for amplifying the input voice signal to a predetermined level; An A / D converter 101 for converting the amplified voice signal into digital data; A serial-to-parallel converter (110) for converting the converted digital data into serial data; A data transmitting and receiving unit 70 for transmitting and receiving data wirelessly through a mobile communication network; A serial-to-parallel converter 80 for converting serial data into parallel data; A switching switch 60 for selectively outputting one data input; A D / A converter 50 for converting the selected output data into an analog signal; A drive amplifier 51 for power amplifying the converted analog signal; A keypad 31 for receiving a user input; And a controller 30 controlling the operation of the component. It is a very useful invention that eliminates the problems of the user, such as the implementation of the audio playback function in the mobile phone, the user does not have to worry about the ringtone of the mobile phone and incoming calls while listening to audio.
    公开号:KR19990033726A
    申请号:KR1019970055403
    申请日:1997-10-17
    公开日:1999-05-15
    发明作者:김준성
    申请人:김준성；
    IPC主号:
    专利说明:

    Mobile Phone with Voice Playback
    The present invention relates to a mobile phone capable of voice playback, and more particularly, after receiving and storing digital audio data, when a user requests playback, the digital audio data is reproduced, and a call request signal through a mobile communication network is transmitted. When detected, it transmits a call signal (RING) while listening to audio so that the user immediately perceives the incoming call so that the user can make a voice call with the other party. Without discomfort, the present invention relates to a mobile phone capable of playing voice to make a voice call immediately.
    Conventionally, a person carrying a mobile communication terminal (hereinafter referred to as a "mobile phone") is carrying a separate small headphone cassette and the like and played back through earphones or the like to enjoy music or language study while walking or moving. I listened to the audio.
    However, when listening to audio through earphones, external sounds other than the audio sounds of earphones are not easily audible. Therefore, the user should always care about the ringtone of the mobile phone to recognize the ringtone of the mobile phone while listening to music. Therefore, I couldn't concentrate on listening to music or studying language. When listening to music or studying language with high output sound, I couldn't recognize the ringtone at all and didn't receive important calls. There was a very troublesome and inconvenient problem.
    Therefore, the present invention was created in order to solve the above problems, and it is easy to carry by embedding an audio playback function in a mobile phone, so that a user can automatically recognize a call when a call is requested during audio playback. It is an object of the present invention to provide a mobile phone capable of playing a voice that allows the user to listen to the audio being played freely without paying attention to it.
    1 illustrates a configuration of an embodiment of a mobile phone capable of playing voice according to the present invention,
    2 of FIG. 2 is a diagram illustrating in detail the configuration of the data transceiver of FIG.
    * Explanation of symbols for main parts of the drawings
    HP: Mobile Phone Mic: Microphone
    1 antenna 10 infrared signal receiver
    20: decoding unit 30: control unit
    31: keypad 33: flash memory
    40: MPEG decoder 50: D / A converter
    51: drive amplifier 60: switching switch
    70: data transmission unit 71: data transmission unit
    71a: Diffusers 71b, 72b: baseband filter
    71c: transmitting unit 72: data receiving unit
    72a: detector 72c: despreader
    73: pn code synchronization acquisition / tracking unit 74: pn code generator
    80, 110: Serial-to-parallel converter 100: Amplifier
    101: A / D Converter
    According to an aspect of the present invention, there is provided a mobile phone capable of reproducing voice, comprising: data receiving means for receiving digital audio data; Storage means for storing the received digital audio data; Decoding means for reading and decoding the digital audio data from the storage means according to a user's playback request; Wireless transmitting and receiving means for wirelessly transmitting and receiving a voice call signal; Call state detection means for detecting a call request and an end signal of mobile communication; Storage means for storing a reading position of digital audio data when detecting a call request signal of the call state detecting means; Switching means for selectively outputting one of output data of the decryption means and received voice data of the wireless transmission / reception means in accordance with the call request and end signal detection of the call state detection means; Audio output means for converting and amplifying the digital data selected by the switching means and outputting the amplified audio signal to a speaker; And control means for resuming readout from the readout position of the stored digital audio data when detecting a call termination signal of the call state detection means. It is characterized by being configured to include.
    In the mobile phone capable of reproducing voice as described above, the storage means pre-stores the digital audio data received through the data receiving means from an external computer or the like by the user's selection in advance, and then the user reproduces the data while carrying it. Upon request, the decoding means reads out the corresponding digital audio data of the storage means, decodes it from the compressed format, restores the original audio data, transmits it to the voice output means, and converts and amplifies it to the speaker. To be output and audible.
    If the call state detecting means detects a call request signal of mobile communication while listening to the reproduction of the digital audio data as described above, the storage means is the current reading position from the storing means of the digital audio data being reproduced. The switching means selects a signal received from the wireless transmission / reception means and outputs it to the voice output means in accordance with the call request signal detection of the call state detection means. The voice output means converts the selected output signal into a speaker or the like, so that the user who is listening to the audio recognizes the call signal RING. The voice signal is transmitted to the transmitting side requesting the call through the wireless transmission and reception means, thereby making a voice call.
    When the voice call ends and the call state detecting means detects the call ending signal, the control means causes the decoding means to read out the digital audio data of the storage means from the read position of the stored digital audio data and reproduce the voice. Let it resume.
    Hereinafter, the configuration and operation of an embodiment of a mobile phone capable of playing voice according to the present invention will be described in detail with reference to the accompanying drawings.
    1 illustrates an embodiment of a mobile phone capable of reproducing voice according to the present invention, and an infrared signal for receiving compressed digital audio data input in an infrared signal form from an IRDA (Infrared Data) port of a personal computer (PC). Receiving unit 10; A decoder 20 for restoring the received infrared signal into compressed digital audio data; A flash memory 33 for storing the restored compressed digital audio data; An MPEG decoder 40 which decodes the stored digital audio data into playable audio data; An amplifier 100 for amplifying a voice signal input through a microphone Mic to a predetermined level; An A / D converter 101 for converting the amplified voice signal into digital data; A serial-to-parallel converter (110) for converting the converted digital data into serial data; A data transmitting and receiving unit 70 including a data receiving unit 72 for receiving data wirelessly through a mobile communication network and a data transmitting unit 71 for wirelessly transmitting the converted parallel data; A serial-to-parallel converter (80) for converting the serially received demodulated data into parallel data; A switching switch (60) for selectively outputting one data input of the decoded audio data and the demodulated and converted digital data; A D / A converter (50) for converting digital data selected and output by the changeover switch (60) into an analog signal; A drive amplifier 51 for power-amplifying the converted analog signal and outputting the converted analog signal to a headphone (HP); A keypad 31 for receiving a user input; And a controller 30 that controls the operation of the component according to a call request and response or a user's selection of a song through the keypad 31.
    FIG. 2 is a detailed diagram showing the configuration of the data transceiver 70 of FIG. 1, which includes a pn code generator 74 for generating a punctula pn code and an early, late pn code; The phase or code of the pn code generated by the pn code generator 74 according to the spread value is spread by spreading a positive pn code generated by the pn code generator 61 to pilot signals received from a plurality of CDMA base stations. And the pn code synchronization acquisition / tracking unit 73 for acquiring the synchronization of the positive pn code and tracking the phase of the pn code acquired using the early and late pn codes of the positive pn code. ; A spreader (71a) which modulates the transmission data into an I (In-Phase) phase and a Q (Quadrature) phase signal and spreads using the pn code synchronized by the pn code synchronization acquisition / tracking unit 73; A baseband filter (71b) which passes only the signal band spread from the spreader (71a); A transmitter 71c which transmits the band-passed signal on a carrier wave of I and Q channels and transmits it; A detector 72a for synchronously detecting the received signal for each of I and Q channels; A baseband filter 72b for passing only the baseband signal among the synchronously detected signals; And a despreader 72c which despreads the pn code acquired from the baseband pn code sync acquisition / tracking unit 73 and the Walsh code corresponding to the target channel among the Walsh codes assigned to each channel. It is configured to include.
    In the mobile phone capable of playing voice according to the present invention, the audio data compressed in a specific format that a user wants to listen to while moving, such as music or a foreign language, is first transmitted through an infrared (IRDA) port of a personal computer (PC). The signal is transmitted to the cellular phone according to the present invention, and the signal is received by the infrared signal receiving unit 10, and the decoder 20 restores the original compressed audio data, that is, MPEG audio or wave format audio data. The controller 30 stores the restored digital audio data in the flash memory 33 in which the stored information is not lost even when the power is turned off. In the case of the music data among the digital audio data stored as described above, one song is stored per song. With a capacity of 3 to 4 Mbytes (about 400 to 800 kbytes when the audio quality is degraded), many songs can be stored according to the capacity of the flash memory 33.
    In the state in which the song is stored as described above, the user carries and moves the mobile phone according to the present invention. At this time, if the user selects and inputs a desired song to play through the keypad 31, the control unit 30 switches. By controlling the switch 60, the output of the MPEG decoder 40 is selected, while the digital audio data of the compression format corresponding to the selected input song is read from the flash memory 33 and the MPEG decoder is read. Transmit to 40. Upon receiving the digital audio data of the compressed format, the MPEG decoder 40 decodes an amplifier audio format, outputs the digital audio data of the original audio sound, and transmits the digital audio data to the D / A converter 50. The D / A converter 50, which has already been converted and requested by control, converts the decoded digital music data into an analog signal, and the driving amplifier 51 amplifies the converted analog signal to power headphones (HP). By outputting through, the user can listen to the selected song.
    On the other hand, the pn code synchronization acquisition / tracking unit 73 is a CDMA base station closest to a user who owns a mobile phone capable of voice reproducing according to the present invention, from among a plurality of CDMA base stations using different phase pn codes for each base station Despreads the pilot signal received from the Pn code generator generated by the pn code generator 74 and outputs a correlation value by integrating the despread signal for a predetermined time, and the correlation value does not reach a predetermined reference value. In this case, it is determined that synchronization is not obtained, and the pn code generator 74 is controlled to shift the phase of the pn code generated by one chip (one chip refers to one logic signal holding time in the pn code). .
    The pn code synchronous acquisition / tracking unit 73 repeats the above operation for the pn code shifted by one chip, and when the correlation value obtained during such operation exceeds a predetermined reference value, The synchronization of the pn code is obtained. After the synchronization is obtained, the pn code synchronization acquisition / tracking unit 73 lates one chip of the positive pn code other than the obtained punctual pn code. If the correlation value obtained by the spread of the pn code of the phase is biased to one side, the base station and the pn code are continuously operated by shifting the phases of the positive pn code, the previous pn code, and the later pn code to the skewed phase. The phase of is always synchronized.
    As described above, in a state where the adjacent base station and the pn code are synchronized, the detector 72a of the data receiver 72 is a carrier signal of quadrature (I, Q) with respect to the signal received from the antenna 1. Are multiplied by each, and the baseband filter 72b selects and passes only the baseband signal including the valid signal in the band of the signal multiplied by the carrier. Since the baseband signal is a spread signal during transmission at the base station, the despreader 72c despreads the signal passed through the baseband filter 72b with a pn code synchronized with the base station, and then corresponds to a call channel. By despreading the Walsh code, the I and Q channel signals are synthesized, restored into a data bit string, and then transmitted to the serial-to-parallel conversion 80.
    The controller 30 interprets the contents restored in data units by the serial-to-parallel converter 80. When the received input data is interpreted as a call request, the controller 30 determines that the audio data currently being reproduced. While storing the read position of the corresponding time point in the flash memory 33, the switching switch 60 is controlled to switch the connection state with the MPEG decoder 40 and connect with the serial / parallel converter 80. After that, the RING data stored in itself is output to the D / A converter 50.
    The call tone data is converted into an analog call sound by the D / A converter 50, and the amplifier 52 amplifies the analog call sound and outputs it to the headphones HP. You will not miss it.
    When the user who listens to the output ringtone inputs a response key of the keypad 31 in response thereto, the controller 30 proceeds to a call establishment process with the base station and during the reverse link. Set the pn code to use. After the call establishment process, when the user inputs a voice through a microphone attached to a microphone or a headphone HP, the input voice is amplified to a predetermined level in the amplifier 100 and the A / D converter. Reference numeral 101 converts the voice signal amplified to a predetermined level into digital data and outputs it to the serial-to-parallel converter 110. The serial-to-parallel converter 110 converts the converted digital data into serial data to convert the data. Transmission to the diffuser 71a of the transmitter 71 is performed.
    The spreader 71a of the data transmitter 71 spreads the serial data bits input from the serial-to-parallel converter 110 to the baseband filter 71b by diffusing the pn code to output the baseband filter 71b. 71b passes only the signal band spread from the spreader 71a in the input signal. The band-passed signal is phase-modulated into I and Q channels by the carrier of the reverse band of the CDMA mobile communication only by the transmitter 71c and is adjacent to the user and is currently connected by a CDMA wireless base station (not shown). Which is transmitted to the other party requesting the call through an exchange (not shown) in the CDMA mobile communication network, thereby making a voice call.
    Accordingly, while listening to music or a foreign language, the user can make a call using the headphones (HP) and the like that are being listened to with a simple response operation.
    During the voice call, when a call release request from the user is made through the keypad 31, the controller 30 controls the switching switch 60 so that the connection connection position is returned to the MPEG decoder 40. ), And the MPEG decoder 40 reads the digital audio data stored in the flash memory 33 from the position immediately after the self-stored read position information, and continuously reproduces the music as described above. To be done.
    In the above-described embodiment, when using the serial communication element RS233C instead of the infrared signal receiver 10, compressed digital music or foreign language voice data is always provided in the computer instead of receiving wirelessly from the infrared port of the computer. Since the necessary data can be received by wire through a serial communication port, there is no need to provide an infrared port separately for a computer.
    In addition, instead of the flash memory 33, if a removable card-type large-capacity memory is used as needed, if the user does not use a mobile phone capable of playing audio according to the present invention for audio playback, the memory can be removed from the mobile phone. It can reduce the weight of the mobile phone, and also can accommodate more songs to listen to it is possible to listen to music for a long time.
    The mobile phone capable of reproducing voice according to the present invention configured and operated as described above not only eliminates the inconvenience of carrying a separate audio reproducing apparatus by implementing an audio reproducing function in the mobile phone, but also plays and listens to audio. If a call is requested in the middle of the call, the user is immediately notified of the call so that the user can make a voice call, thereby eliminating the inconvenience of having to pay attention to the ringtone of the mobile phone while listening to the voice being played, and avoiding an incoming call. It is a convenient and useful invention.
    权利要求:
    Claims (7)
    [1" claim-type="Currently amended] Data receiving means for receiving digital audio data;
    Storage means for storing the received digital audio data;
    Decoding means for reading and decoding the digital audio data from the storage means according to a user's playback request;
    Wireless transmitting and receiving means for wirelessly transmitting and receiving a voice call signal;
    Call state detection means for detecting a call request and an end signal of mobile communication;
    Storage means for storing a reading position of digital audio data when detecting a call request signal of the call state detecting means;
    Switching means for selectively outputting one of output data of the decryption means and received voice data of the wireless transmission / reception means in accordance with the call request and end signal detection of the call state detection means;
    Audio output means for converting and amplifying the digital data selected by the switching means and outputting the amplified audio signal to a speaker; And
    Control means for resuming readout from the readout position of the stored digital audio data upon detection of the call termination signal of the call state detection means; Mobile phone capable of playing voice, including.
    [2" claim-type="Currently amended] The method of claim 1,
    The digital audio data is a mobile phone capable of playing voice, characterized in that the music data.
    [3" claim-type="Currently amended] The method of claim 1,
    The digital audio data is a mobile phone capable of voice playback, characterized in that the foreign language voice data for learning.
    [4" claim-type="Currently amended] The method of claim 1,
    The data receiving means is a mobile phone capable of speech reproduction, characterized in that for receiving the infrared radio signal to restore the data.
    [5" claim-type="Currently amended] The method of claim 1,
    The data receiving means is a mobile phone capable of reproducing voice, characterized in that for receiving the serial data through the connection line to restore the data.
    [6" claim-type="Currently amended] The method of claim 1,
    The storage means is a mobile phone capable of playing voice, characterized in that the removable large capacity memory.
    [7" claim-type="Currently amended] The method of claim 1,
    And the storage means is a non-volitile memory.
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    同族专利:
    公开号 | 公开日
    KR100242563B1|2000-02-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-10-17|Application filed by 김준성
    1997-10-17|Priority to KR1019970055403A
    1999-05-15|Publication of KR19990033726A
    2000-02-01|Application granted
    2000-02-01|Publication of KR100242563B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970055403A|KR100242563B1|1997-10-17|1997-10-17|Portable phone capable of reproducing voice|
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