CN101453797B - Method for supporting mobile phone to implement television and radio function - Google Patents
Method for supporting mobile phone to implement television and radio function Download PDFInfo
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- CN101453797B CN101453797B CN2008100421109A CN200810042110A CN101453797B CN 101453797 B CN101453797 B CN 101453797B CN 2008100421109 A CN2008100421109 A CN 2008100421109A CN 200810042110 A CN200810042110 A CN 200810042110A CN 101453797 B CN101453797 B CN 101453797B
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Abstract
The invention belongs to the technical field of mobile communication, and in particular relates to a method for supporting mobile phones in realizing the functions of televisions and radios. The method ingeniously uses the prior resources, cooperatively uses the latest demodulation chip, jointly adjusts all chip function blocks, and is inlaid with the entertainment functions of televisions and radios on the basis of the prior multimedia function. The invention provides a mobile television/radio solution which realizes the receiving and demodulation of free satellite broadcast signals, is controlled by a mobile-phone baseband chip, and processes images and speech through DSP IC and CODEC IC.
Description
Technical field
The invention belongs to the mobile communication technology field, be specifically related to a kind of method of supporting that mobile phone is realized TV and function of radio receiver, say that further it is a kind of multimedia recreation mobile phones design scheme that receiving satellite broadcast is televised and received FM radio that realizes on various cell phone platforms.
Background technology
Under the environment of the continuous development of personal mobile communication technology, mobile phone is increasing to people's effect now, and same, mobile phone the change that under people's continuous demand, also continues of function many and become powerful.Nowadays, surf the Net by mobile phone, the photography of taking pictures, Bluetooth transmission etc. have all become reality, and along with the requirement of people's amusement increases, MP3, functions such as MP4 are integrated on the mobile phone, also all finish.And as the be in opera involving much singing and action of amusement of people, TV also begins being integrated on the mobile phone gradually.
The realization of Digital Video Broadcasting Handheld, scheme is many now.The general demodulation chip that all has been to use satellite television, and the video processor that is complementary of use and demodulation chip are realized its output and demonstration.This shows that this method has been brought cost and benefit than not satisfying the problem that large-scale promotion is used.
Summary of the invention
The object of the present invention is to provide a kind of method of supporting that mobile phone is realized TV and function of radio receiver, the inventive method is to use existing resource, combines with demodulation chip is flexible, makes the integrated scheme of high performance-price ratio.The inventive method can realize free satellite broadcast signal receiving demodulation, is controlled by mobile phone base band chip, carries out the mobile TV/radio reception solution of image and speech processes by video and Audio Processing chip.
The specific implementation of the inventive method, need finish the software/hardware treatment step of following five aspects:
(1) control of the function of cell phone platform and interface are set up;
(2) reception/demodulation of satellite broadcast signal;
(3) gain controlling and the transmission of TV/radio reception audio signal;
(4) processing of television video frequency signal and transmission;
(5) conversion of vision signal and in the demonstration of LCM.
Below, the present invention will be described in detail above-mentioned 5 performing step.
Say that further a kind of method of supporting mobile phone to realize TV and function of radio receiver provided by the invention comprises the following steps:
(1) control of the function of cell phone platform and interface are set up
At first, under the multimedia menu of spreadtrum cell phone platform software, add entering the menu option of TV/radio reception, and create the processing menu of each auxiliary function block in corresponding interfaces windows and each assistant window;
(2) reception/demodulation of satellite television broadcasting signal
From the satellite TV signal that antenna receives, at first by input matching circuit, the signal of coupling carries out Frequency mixing processing through after the amplification of high frequency with local oscillator; Carry out intermediate frequency processing and amplifying and video detection afterwards, the vision signal that detects is carried out processing and amplifying, isolate video synchronization signal and audio signal; Video synchronization signal is through obtaining being used for the line synchronizing signal and the field sync signal of display synchronization after separating; Realize having shown or back end device such as DSP shows or the synchronizing signal of Video processing; Audio signal is amplified the back through demodulation and is exported or deliver to audio process and export from SPEAKER;
(3) gain controlling and the transmission of TV/radio reception audio signal
After television video frequency signal was delivered on the DSP with the form of YUV422, DSP got the data volume of 360*260 in the initial data and carries out matching treatment; Carry out corresponding data processing, to image carry out level and smooth and the rate of detecing synchronous; The go forward side by side SCALE of row image is shown to it on mobile phone screen of QVGA; Be transferred to the mobile phone end CODEC in the I2S mode from the TV decoding chip, utilize the data GAIN among the CODEC, this voice signal is gained amplify and the EQ processing; Convert analog signal at DAC transducer and export, realize the playback of sound from SPEAKER through CODEC;
(4) processing of television video frequency signal and transmission
Using integrated chip that satellite broadcast signal is received/demodulation, obtain the handling process that needs component, is to handle receiving broadcast singal from antenna, obtains its audio component and video component; Audio component is exported outward via the I2S passage of chip, broadcasts from SPK through after the demodulation process in the CODEC chip; And video component is isolated each component of YUV after treatment, and according to the parameter that configures in the early time video data is carried out cutting and component samples; From exporting from 8 video data line, then decoded in DSP/conversion at last with the form that meets the ITU601/656 suggestion, deliver to LCD and go up the output demonstration;
(5) conversion of vision signal and in the demonstration of LCM
The conversion of vision signal and realize by dsp chip in the demonstration of LCM, the yuv video signal that receives carries out decoding processing at DSP, and change into the form that can show at LCD according to the requirement of current display screen, at DSP with after data decode and converting, the past LCM of video data one every trade can be gone up and transmit, thereby on LCD, show.
The advantage that method provided by the invention is compared with prior art is to utilize the existing resource of cell phone platform, in conjunction with new technology, realizes the integrated of mobile TV/radio reception.It has had low cost, the advantage easily of transplanting on the homologous series project owing to be to finish on the basis of existing resource.
Method provided by the invention is used existing resource dexterously and has been used in combination up-to-date technology/chip, and each chip functions piece of uniting and adjustment on the basis of original multimedia function, has embedded the amusement function of TV and radio reception.And the present invention also is based on this, releases the free satellite broadcast signal receiving demodulation of a kind of realization, is controlled by mobile phone base band chip, carries out the mobile TV/radio reception solution of image and speech processes by DSPIC and CODEC IC.
Below, describe details and working condition in conjunction with the accompanying drawings and embodiments in detail according to the concrete grammar of the present invention's proposition.
Description of drawings
Fig. 1 is the design principle block diagram that the inventive method realizes TV and broadcast capability;
Fig. 2 is the control flow chart of the radio reception player function that provides of the inventive method;
Fig. 3 is the control flow chart of the function of televising that provides of the inventive method;
Fig. 4 is the signal frame diagram of the satellite television broadcasting reception/demodulation that provides of the inventive method.
Embodiment
A kind of method of supporting mobile phone to realize TV and function of radio receiver provided by the invention comprises the steps:
(1) control of the function of cell phone platform and interface are set up;
(2) reception/demodulation of satellite broadcast signal;
(3) gain controlling and the transmission of TV/radio reception audio signal;
(4) processing of television video frequency signal and transmission;
(5) conversion of vision signal and in the demonstration of LCD MODULE (LCM).
The invention provides a preferred embodiment comes the inventive method is described further, the embodiment of the invention is to carry out on the GSM of Spreadtrum Communications Inc.'s mobile phone baseband chip 6600D chip platform, and platform software is the application software that makes based on this 6600D platform.The CODEC chip that uses is the Audio Processing chip of the WM8991 model of WOLFSON microelectrinics company.The dsp chip that uses is the dsp chip of the V05029 model of VIMICRO company.The TV/FM demodulation chip that uses is the TV/FM chip of the TLG1000 model of TELEGENTSYSTEM company.
Simultaneously, if needs switch chips such as CODEC, as long as this CODEC chip has the I2S interface and can realize.
As shown in Figure 1, it is a design principle block diagram of realizing simulated television TV of the present invention and broadcasting FM function, it has summarized the function and the correlation of each functional block of the whole design of the inventive method, and order and the transmission relation of data flow between functional block.By last figure as can be seen, platform software need communicate control with each function IC based on baseband chip (B/B IC) work.Wherein, baseband chip and encoder chip (CODEC IC) and TV/fm demodulation chip (TV/FM IC) communicate by the I2C agreement, and platform carries out commands for controlling through this passage to these two chips.And base band and digital signal processing chip (DSP
IC) carry out the parallel communications of 16 bits between, same, communicating by letter between dsp chip and LCD display also is to carry out with 16 parallel-by-bits.Owing to the suggestion that meets ITU-601 from the video output data stream of TV/FM chip, in conjunction with the reception form of dsp chip, so video data stream has been to use the 8 bit data stream forms of YUV422 to transmit communication between the two.And for audio frequency output, in order to obtain the convenience of better tonequality and Audio Processing, the audio signal from the TV/FM chip to CODEC is carried out with I2S communication protocol.
Based on radio reception and TV is two kinds of independently amusement functions, so, need carry out different main control process flows.Following accompanying drawing 2 and accompanying drawing 3 are respectively the flow charts of these two kinds of master controls.
As shown in Figure 2, it is the control flow chart of radio reception playback, and it has illustrated to carry out the sequencing of functional block work of radio reception control and some chip enable/parameter configuration etc.In the main control process flow of realizing radio reception, when having created the master control window.First, need carry out function to the CODEC chip from baseband platform switches and the parameter setting, change the voice-frequency channel of CODEC into path that correspondence is accepted TV/FM chip side I2S audio format, open the function of CODEC end I2S, be set at the MASTER pattern, enable each pin of I2S, output corresponding clock signals, the audio data stream of wait TV/FM chip side.Regulate the gain size of each multiplier (-icator) in the path and guarantee that various effect devices are operated in normal condition.The second, after CODEC configures, the TV/FM chip is powered and hardware RESET from base band, after I2C communication is normal, the TV/FM chip is carried out the parameter setting of each basic function, open the external output audio signal of its I2S passage, setting this passage is the SLAVE pattern.And close the video correlation function, set the radio reception channel of acquiescence.Thus, the audio signal of the radio reception that receives at first is sent on the CODEC chip from the TV/FM chip with the form of I2S data flow, after of the decoding and digital-to-analogue conversion of CODEC chip to audio signal data, output on the loud speaker (SPK) by the form with simulated audio signal after certain gain, realize the broadcasting of radio reception.
As shown in Figure 3, it is the control flow chart of televising, and it has illustrated to carry out the sequencing of functional block work of TV control and some chip enable/parameter configuration etc.In realizing the main control process flow of televising, when having created the master control window.First, need carry out function to the CODEC chip from baseband platform equally switches and the parameter setting, change the voice-frequency channel of CODEC into path that correspondence is accepted TV/FM chip side I2S audio format, open the function of CODEC end I2S, be set at the MASTER pattern, enable each pin of I2S, output corresponding clock signals, the audio data stream of wait TV/FM chip side.Regulate the gain size of each multiplier (-icator) in the path and guarantee that various effect devices are operated in normal condition.Second, base band is switched the mode of operation of digital signal processing chip (DSPIC), dsp chip is shown LCD enable control, and dsp chip is mated configuration to the parameter of the vision signal of reception, the preview state that foundation is televised waits for that the vision signal of TV/FM chip is come.The 3rd, after CODEC chip and dsp chip configure, from baseband chip the TV/FM chip is powered and hardware RESET, after I2C communication is normal, the TV/FM chip is carried out the parameter setting of each basic function, open the external output audio signal of its I2S passage, setting this passage is the SLAVE pattern.And start the video correlation function, and set the channel of acquiescence, carry out the TV signal search, and the TV signal that receives is separated into audio ﹠ video exports respectively.Wherein audio signal is the same with FM, at first the form with the I2S data flow is sent on the CODEC chip from the TV/FM chip, after of the decoding and digital-to-analogue conversion of CODEC chip to audio signal data, output on the loud speaker (SPK) by the form with simulated audio signal after certain gain, realize the broadcasting of sound.And vision signal outputs on the dsp chip from 8 parallel-by-bit data wires with the form of YUV422.Dsp chip is after receiving this data flow, to its necessary processing such as decode, and convert the form that LCDs (LCD) can show when general (be RGB656) to, and will on LCDs (LCD), show with a Ching or a behavior unit, realize the broadcast of video.In conjunction with isochronous audio, realized the function of mobile TV to this.
(1) control of the function of cell phone platform and interface are set up
At first, the inventive method is added under the multimedia menu of spreadtrum cell phone platform software and is entered the menu option of TV/radio reception, and creates the processing menu of each auxiliary function block in corresponding interfaces windows and each assistant window.
(2) reception/demodulation of satellite television broadcasting signal
Find out that from accompanying drawing 4 it is a kind of signal frame diagram of satellite television broadcasting reception/demodulation, it has represented to carry out reception of satellite television broadcasting signal and demodulation, obtains the handling process that needs component.Be to receive broadcast singal from antenna to handle, obtain its audio component and video component.Concrete steps are that from the satellite TV signal that antenna receives, at first by input matching circuit, the signal of coupling carries out Frequency mixing processing through after the amplification of high frequency with local oscillator.Carry out intermediate frequency processing and amplifying and video detection afterwards, the vision signal that detects is carried out processing and amplifying,, isolate video synchronization signal and audio signal here.Video synchronization signal is through obtaining being used for the line synchronizing signal and the field sync signal of display synchronization after separating.Realize having shown or back end device such as DSP shows or the synchronizing signal of Video processing.Audio signal is amplified the back through demodulation and is exported or deliver to audio process and export from SPEAKER.
(3) gain controlling and the transmission of TV/radio reception audio signal
After television video frequency signal was delivered on the DSP with the form of YUV422, DSP got the data volume of 360*260 in the initial data and carries out matching treatment.Carry out corresponding data processing, to image carry out level and smooth and the rate of detecing synchronous.The go forward side by side SCALE of row image is shown to it on mobile phone screen of QVGA.Be transferred to the mobile phone end CODEC in the I2S mode from the TV decoding chip, utilize the data GAIN among the CODEC, this voice signal is gained amplify and the EQ processing.Convert analog signal at DAC transducer and export, realize the playback of sound from SPEAKER through CODEC.
(4) processing of television video frequency signal and transmission
Play owing to need on mobile phone, realize the satellite broadcasting television of general family expenses,, use general demodulation method not realize that the present invention has selected integrated chip solution for use, has saved the space, realize the mobile phoneization of TV so need integrated level very high.In this integrated chip that uses, it is to the reception/demodulation of satellite broadcast signal, can from accompanying drawing 4, find out, it is a kind of signal frame diagram of satellite broadcasting reception/demodulation, it has been represented to carry out the satellite television broadcasting signal and has received and demodulation, obtaining the handling process that needs component, is to handle receiving broadcast singal from antenna, obtains its audio component and video component.Audio component is exported outward via the I2S passage of chip, broadcasts from SPK through after the demodulation process in the CODEC chip.And video component is isolated each component of YUV after treatment, and according to the parameter that configures in the early time video data is carried out cutting and component samples.From exporting from 8 video data line, then decoded in DSP/conversion at last with the form that meets the ITU601/656 suggestion, deliver to LCD and go up the output demonstration.
(5) conversion of vision signal and in the demonstration of LCM
The conversion of vision signal of the present invention and realize by dsp chip in the demonstration of LCM, the yuv video signal that receives carries out decoding processing at DSP, and change into the form that can show at LCD according to the requirement of current display screen, generally for the LCD of 16BITS, use be the display format of RGB656., the past LCM of video data one every trade can be gone up and transmit, thereby on LCD, show after data decode and converting at DSP.
The present invention provides description as example to this method, but should not limit protection scope of the present invention with this.
Claims (5)
1. a method of supporting that mobile phone is realized TV and function of radio receiver is characterized in that this method comprises the following steps:
(1) control of the function of cell phone platform and interface are set up
At first, under the multimedia menu of spreadtrum cell phone platform software, add entering the menu option of TV/radio reception, and create the processing menu of each auxiliary function block in corresponding interfaces windows and each assistant window;
(2) reception/demodulation of satellite television broadcasting signal
From the satellite TV signal that antenna receives, at first by input matching circuit, the signal of coupling carries out Frequency mixing processing through after the amplification of high frequency with local oscillator; Carry out intermediate frequency processing and amplifying and video detection afterwards, the vision signal that detects is carried out processing and amplifying, isolate video synchronization signal and audio signal; Video synchronization signal is through obtaining being used for the line synchronizing signal and the field sync signal of display synchronization after separating; Realization is sent to the synchronizing signal that the System on Chip/SoC display shows, this synchronizing signal also is sent to DSP simultaneously and carries out Video processing; Audio signal is amplified the back through demodulation and is exported or deliver to audio process and export from loud speaker SPK;
(3) gain controlling and the transmission of TV/radio reception audio signal
After television video frequency signal was delivered on the DSP with the form of YUV422, DSP got the data volume of 360*260 in the initial data and carries out matching treatment; Carry out corresponding data processing, to image carry out level and smooth and frame per second synchronous; The go forward side by side SCALE of row image is shown to it on mobile phone screen of QVGA; Be transferred to the mobile phone end CODEC in the I2S mode from the TV decoding chip, utilize the data GAIN among the CODEC, audio signal is gained amplify and the EQ processing; DAC transducer through CODEC converts analog signal to from SPEAKER output again, realizes the playback of sound;
(4) processing of television video frequency signal and transmission
Using integrated chip that satellite broadcast signal is received/demodulation, obtain the handling process that needs vision signal and audio signal, is to handle receiving broadcast singal from antenna, obtains its vision signal and audio signal; Audio signal is exported outward via the I2S passage of chip, broadcasts from loud speaker SPK through after the demodulation process in the CODEC chip; And vision signal is isolated each component of YUV after treatment, and according to the parameter that configures in the early time video data is carried out cutting and component samples; From exporting from 8 video data line, then decoded in DSP/conversion at last with the form that meets the ITU601/656 suggestion, deliver to LCD and go up the output demonstration;
(5) conversion of vision signal and realize by dsp chip in the conversion of the display video signal of LCD MODULE LCM and in the demonstration of LCD MODULE LCM, the yuv video signal that receives carries out decoding processing at DSP, and change into the form that can show at LCD according to the requirement of current display screen, at DSP with after data decode and converting, the past LCD MODULE LCM of video data one every trade can be gone up and transmit, thereby on LCD, show.
2. a kind of method of supporting that mobile phone is realized TV and function of radio receiver according to claim 1 is characterized in that this method comprises the following steps:
Platform software need communicate control with each function IC based on baseband chip (B/B IC) work; Wherein, baseband chip and encoder chip (CODEC IC) and TV/fm demodulation chip (TV/FM IC) communicate by the I2C agreement, and platform carries out commands for controlling through this passage to these two chips; And carry out the parallel communications of 16 bits between baseband chip and dsp chip, same, communicating by letter between dsp chip and LCD display also is to carry out with 16 parallel-by-bits; Owing to the suggestion that meets ITU-601 from the video output data stream of TV/FM chip, in conjunction with the reception form of dsp chip, so video data stream has been to use the 8 bit data stream forms of YUV422 to transmit communication between the two; And for audio frequency output, in order to obtain the convenience of better tonequality and Audio Processing, the audio signal from the TV/FM chip to CODEC is carried out with I2S communication protocol.
3. a kind of method of supporting that mobile phone is realized TV and function of radio receiver according to claim 1 is characterized in that described function of radio receiver comprises the following steps:
In the main control process flow of realizing radio reception, when having created the master control window, first, need carry out that function is switched and the parameter setting from baseband platform to the CODEC chip, change the voice-frequency channel of CODEC into path that correspondence is accepted TV/FM chip side I2S audio format, open the function of CODEC end I2S, be set at the MASTER pattern, enable each pin of I2S, output corresponding clock signals, the audio data stream of wait TV/FM chip side; Regulate the gain size of each multiplier (-icator) in the path and guarantee that various effect devices are operated in normal condition; The second, after CODEC configures, the TV/FM chip is powered and hardware RESET from baseband chip, after I2C communication is normal, the TV/FM chip is carried out the parameter setting of each basic function, open the external output audio signal of its I2S passage, setting this passage is the SLAVE pattern; And close the video correlation function, set the radio reception channel of acquiescence; Thus, the audio signal of the radio reception that receives at first is sent on the CODEC chip from the TV/FM chip with the form of I2S data flow, after of the decoding and digital-to-analogue conversion of CODEC chip to audio signal data, output on the loud speaker (SPK) by the form with simulated audio signal after certain gain, realize the broadcasting of radio reception.
4. a kind of method of supporting that mobile phone is realized TV and function of radio receiver according to claim 1 is characterized in that described TV functions comprises the following steps:
In realizing the main control process flow of televising, when having created the master control window, first, need carry out equally that function is switched and the parameter setting from baseband platform to the CODEC chip, change the voice-frequency channel of CODEC into path that correspondence is accepted TV/FM chip side I2S audio format, open the function of CODEC end I2S, be set at the MASTER pattern, enable each pin of I2S, output corresponding clock signals, the audio data stream of wait TV/FM chip side; Regulate the gain size of each multiplier (-icator) in the path and guarantee that various effect devices are operated in normal condition; Second, baseband chip switches the mode of operation of digital signal processing chip (DSPIC), dsp chip is shown LCD enable control, and dsp chip mated configuration to the parameter of the vision signal that receives, the preview state that foundation is televised waits for that the vision signal of TV/FM chip is come; The 3rd, after CODEC chip and dsp chip configure, from baseband chip the TV/FM chip is powered and hardware RESET, after I2C communication is normal, the TV/FM chip is carried out the parameter setting of each basic function, open the external output audio signal of its I2S passage, setting this passage is the SLAVE pattern; And start the video correlation function, and set the channel of acquiescence, carry out the TV signal search, and the TV signal that receives is separated into audio ﹠ video exports respectively; Wherein audio signal is the same with FM, at first the form with the I2S data flow is sent on the CODEC chip from the TV/FM chip, after of the decoding and digital-to-analogue conversion of CODEC chip to audio signal data, output on the loud speaker (SPK) by the form with simulated audio signal after certain gain, realize the broadcasting of sound; And vision signal outputs on the dsp chip from 8 parallel-by-bit data wires with the form of YUV422; Dsp chip carries out decoding processing to it after receiving this data flow, and converts the form that LCDs (LCD) can show to, and will show on LCDs (LCD) with a frame or a behavior unit, realizes the broadcast of video; In conjunction with isochronous audio, realized the function of mobile TV to this.
5. a kind of method of supporting that mobile phone is realized TV and function of radio receiver according to claim 1, it is characterized in that described method is to carry out on the GSM of Spreadtrum Communications Inc.'s mobile phone baseband chip 6600D chip platform, platform software is the application software that makes based on this 6600D platform, the CODEC chip that uses is the Audio Processing chip of the WM8991 model of WOLFSON microelectrinics company, and the dsp chip of use is the dsp chip of the V05029 model of VIMICRO company.
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Owner name: WINGTECH COMMUNICATION CO., LTD. Free format text: FORMER OWNER: WENTAI COMMUNICATION SCIENCE + TECHNOLOGY CO., LTD., JIAXING CITY Effective date: 20120315 |
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Effective date of registration: 20120315 Address after: 314006, No. 777, Middle South Road, Nanhu District, Zhejiang, Jiaxing (Jiaxing science and technology city) Patentee after: Wingtech Communication Co., Ltd. Address before: 314006, Jiaxing, Zhejiang on the north side of South Central Road, two West Road Patentee before: Wentai Communication Science & Technology Co., Ltd., Jiaxing City |