WO2011054228A1

WO2011054228A1 - Frequency modulation playing method, apparatus and terminal

Info

Publication number: WO2011054228A1
Application number: PCT/CN2010/075936
Authority: WO
Inventors: 沈少武
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-11-04
Filing date: 2010-08-12
Publication date: 2011-05-12
Also published as: CN102055490B; CN102055490A

Abstract

Two frequency modulation (FM) playing methods, apparatuses and terminals are disclosed by the present invention, wherein one method includes that a switch control module detects whether an external headset antenna is connected at present; if yes, an FM reception chip receives FM broadcasting signals via the external headset antenna, and performs modulation to generate first signals, and transmits the first signals to a baseband chip; the baseband chip modulates the received first signals to generate second signals, and outputs the second signals to the external headset; the external headset demodulates and plays the second signals; if not, the FM reception chip receives the FM broadcasting signals via an internal antenna, and performs modulation to generate third signals, and transmits the third signals to the baseband chip; the baseband chip modulates the received third signals to generate forth signals; it is determined whether an FM Bluetooth playing signal is detected at present, if yes, the baseband chip outputs the forth signals to a Bluetooth module; the Bluetooth module bluetooth modulates the forth signals to generate fifth signals, and outputs the fifth signals to a Bluetooth headset via a Bluetooth antenna; the Bluetooth headset demodulates and plays the fifth signals; if not, a microphone plays the forth signals directly. According to the present invention, it improves feelings and experience of users to listen to FM by switching between multiple reception and listening modes.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to two frequency modulation (Frequency Modulation) playback methods, two FM FM playback devices, and two types of terminals. BACKGROUND OF THE INVENTION The rapid development of mobile communications has strongly promoted the development of mobile terminals toward intelligence, miniaturization, and functional diversification. In recent years, mobile terminals with FM functions have become more and more popular with users because they can listen to the latest news and information anytime, anywhere. The working principle of the existing mobile terminal with FM function is as follows: The FM antenna receives the FM broadcast signal, and the FM broadcast signal is filtered by low noise and then enters the orthogonal mirror to resist the mixer for mixing, and then amplified by the variable gain amplifier. High-precision analog-to-digital conversion, the digital signal obtained after conversion is decoded by audio DSP (Digital Signal Processing), and the processed signal is subjected to digital-to-analog converter (DAC) (Digital-to-analog converter) ) After conversion, it is output through the left and right channels. At present, the form of the mobile terminal FM module has several forms, such as pull 4 dry, earphone antenna, patch, etc., each of which has advantages and disadvantages, wherein the antenna in the form of a drawbar has a good effect, but the structure is complicated, the cost is high, and the occupied area is large; The form of the antenna is small and simple to assemble, but the performance is relatively poor due to the small clearance area in the mobile terminal. At this stage, more applications are in the form of an external earphone antenna. The external earphone antenna supports FM playback. In addition, the FM external display can be supported by the built-in antenna. The principle is as follows: The earphone is integrated with the joint design preamplifier by the radiation device. The performance of the antenna supports FM external release. However, existing FM-enabled mobile terminals still have certain drawbacks, as follows:

1. Most mobile terminals with FM function require an external earphone antenna as the FM antenna;

2. The mobile terminal supporting FM external release has poor search performance and limited directionality. 3. For a mobile terminal, the FM playback mode is single, cannot support wireless network playback, and cannot support multiple users at the same time; 4, FM external discharge or internal discharge power consumption is relatively large, listening to standby time is short. SUMMARY OF THE INVENTION Embodiments of the present invention provide an FM FM playback method, which is used to implement switching between multiple listening modes and wirelessly receive FM signals. The method includes: the switching control module detects whether an external earphone antenna is currently connected; The FM receiving chip receives the FM broadcast signal through the external earphone antenna and modulates, generates a first signal and transmits the first signal to the baseband chip, generates a second signal after being modulated by the baseband chip, and outputs the second signal to the external earphone, and the external earphone pair Decoding and playing the second signal; if not, the FM receiving chip receives the FM broadcast signal through the built-in antenna and modulates, generates a third signal and transmits the signal to the baseband chip, and generates a fourth after being modulated by the baseband chip a signal, determining whether an FM Bluetooth playback signal is currently detected, and if so, the baseband chip outputs the fourth signal to the Bluetooth module, and the Bluetooth module performs Bluetooth modulation on the fourth signal, and generates a fifth The signal is output to the Bluetooth headset via the Bluetooth antenna, and the Bluetooth headset demodulates the fifth signal and Discharge; if not, playback signal directly through the fourth microphone. The embodiment of the present invention further provides an FM FM playback method, which is used for implementing wirelessly receiving an FM signal, and the method includes: the baseband chip modulates a sixth signal output by the FM receiving chip, and outputs the generated seventh signal to the Bluetooth module. The Bluetooth module performs Bluetooth modulation on the seventh signal, and outputs the generated eighth signal to the Bluetooth headset via the Bluetooth antenna; the Bluetooth headset demodulates and plays the eighth signal. The embodiment of the invention further provides an FM FM playback device, which is used for the purpose of switching between multiple listening modes, and includes: a switching control module, configured to detect whether an external earphone antenna is currently connected; and, determining the current Whether the FM Bluetooth playback signal is detected;

An FM receiving chip, configured to: when the switching control module detects that an external earphone antenna is currently connected, receive an FM broadcast signal through an external earphone antenna and perform modulation, generate a first signal, and output; And when the switching control module does not detect that the external earphone antenna is currently connected, receiving the FM broadcast signal through the internal antenna and performing modulation, generating a third signal and outputting; the baseband chip, configured to receive the first a signal, which is modulated to generate a second signal and output to an external earphone; and, the received third signal is modulated to generate a fourth signal; when the switching control module detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth Module. The embodiment of the present invention further provides a terminal, configured to implement switching between multiple listening modes, including an FM playback device, where the FM playback device includes: a switching control module, configured to detect whether an external earphone antenna is currently connected. And determining whether the FM Bluetooth playback signal is currently detected; the FM receiving chip is configured to: when the switching control module detects that the external earphone antenna is currently connected, receive the FM broadcast signal through the external earphone antenna and perform modulation, generating the first And outputting; and when the switching control module does not detect that the external earphone antenna is currently connected, receiving the FM broadcast signal through the internal antenna and modulating, generating a third signal and outputting; the baseband chip, for receiving The first signal is modulated to generate a second signal and output to an external earphone; and, the received third signal is modulated to generate a fourth signal; when the switching control module detects the FM Bluetooth playback signal, The four signals are output to the Bluetooth module; or the FM playback device includes: a switching control module, configured to detect Whether there is an external earphone antenna currently connected; and, determining whether the FM Bluetooth playback signal is currently detected; the FM receiving chip is configured to receive the FM through the external earphone antenna when the switching control module detects that the external earphone antenna is currently connected. Broadcasting and modulating, generating a first signal and outputting; and, when the switching control module does not detect that an external earphone antenna is currently connected, receiving an FM broadcast signal through the internal antenna and modulating, generating a third signal and outputting a baseband chip, configured to: after receiving the first signal, generate a second signal and output the second signal to an external earphone; and, modulate the received third signal to generate a fourth signal; when the switching control module detects Outputting the fourth signal to the Bluetooth module when the FM Bluetooth playback signal is; the external earphone is further configured to demodulate and play the received second signal; a Bluetooth module, further configured to perform Bluetooth modulation on the received fourth signal, output the generated fifth signal; a Bluetooth antenna, configured to receive the fifth signal and output; a Bluetooth headset, configured to receive the The fifth signal is demodulated and played; the microphone is configured to directly play the fourth signal when the switching control module does not detect the FM Bluetooth playback signal; or the FM playback device includes: a switching control module, configured to: Detecting whether there is an external earphone antenna currently connected; and determining whether the FM Bluetooth playback signal is currently detected; the FM receiving chip is configured to receive, when the switching control module detects that an external earphone antenna is currently connected, receiving the external earphone antenna The FM broadcast signal is modulated and generated to generate a first signal and output; and when the switching control module does not detect that an external earphone antenna is currently connected, the FM broadcast signal is received by the built-in antenna and modulated to generate a third signal and Output; a baseband chip, configured to receive the first signal, modulate to generate a second signal, and output To the external earphone; and, the received third signal is modulated to generate a fourth signal; when the switching control module detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth module; the external earphone is further used for receiving The second signal is demodulated and played; the Bluetooth module is further configured to perform Bluetooth modulation on the received fourth signal, and output the generated fifth signal; and a Bluetooth antenna, configured to receive the fifth signal and Outputting; a Bluetooth headset, configured to demodulate and play the received fifth signal; and a microphone, configured to directly play the fourth signal when the switching control module does not detect the FM Bluetooth playback signal; The switching control module is further configured to: detect whether a non-operation state of any one or more components in the terminal is maintained beyond a set time; The baseband chip is further configured to: notify the Bluetooth module to stop running, notify other components to enter a low current sleep mode, and maintain a minimum current loss; or the FM playback device includes: a switching control module, configured to detect whether there is an external connection currently The earphone antenna is connected; and, determining whether the FM Bluetooth broadcast signal is currently detected;

An FM receiving chip, configured to: when the switching control module detects that an external earphone antenna is currently connected, receive an FM broadcast signal through an external earphone antenna and perform modulation to generate a first signal and output; and, when the switching control module When the external earphone antenna is not detected, the FM broadcast signal is received and modulated by the built-in antenna to generate a third signal and output; the baseband chip is configured to modulate the received first signal to generate a second signal. And outputting to the external earphone; and, the received third signal is modulated to generate a fourth signal; when the switching control module detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth module; the external earphone is further used for Demodulating and playing the received second signal; the Bluetooth module is further configured to perform Bluetooth modulation on the received fourth signal, and output the generated fifth signal; and a Bluetooth antenna, configured to receive the fifth Signal and output; a Bluetooth headset for demodulating and playing the received fifth signal; When the switching control module does not detect the FM Bluetooth playback signal, directly playing the fourth signal; the switching control module is further configured to: when the Bluetooth headset is at least one, according to the Bluetooth headset The number controls the Bluetooth module to perform audio shunting on the fifth signal. The embodiment of the invention further provides an FM FM playback device, which is used for the purpose of wirelessly receiving an FM signal, and includes:

a FM receiving chip, configured to output a sixth signal; a baseband chip, configured to modulate the sixth signal, and output a generated seventh signal; a Bluetooth module, configured to perform Bluetooth modulation on the seventh signal, and output the generated Eighth signal; a Bluetooth antenna, configured to output the eighth signal to a Bluetooth headset; and a Bluetooth headset, configured to demodulate and play the received eighth signal. The embodiment of the present invention further provides a terminal, which is used for the purpose of wirelessly receiving an FM signal, and includes an FM playback device, where the FM playback device includes: an FM receiving chip for outputting a sixth signal; and a baseband chip for The sixth signal is modulated, and the generated seventh signal is output; the Bluetooth module is configured to perform Bluetooth modulation on the seventh signal, and output the generated eighth signal; and a Bluetooth antenna, configured to output the eighth signal to a Bluetooth headset, configured to demodulate and play the received eighth signal; or the FM playback device includes:

a FM receiving chip, configured to output a sixth signal; a baseband chip, configured to modulate the sixth signal, and output a generated seventh signal; a Bluetooth module, configured to perform Bluetooth modulation on the seventh signal, and output the generated An eighth signal; a Bluetooth antenna, configured to output the eighth signal to the Bluetooth headset; a Bluetooth headset, configured to demodulate and play the received eighth signal; the FM receiving chip is further configured to: The antenna receives and modulates the FM broadcast signal to generate the sixth signal. In the embodiment of the present invention, the switching control module detects whether an external earphone antenna is currently connected, and if so, the FM receiving chip receives the FM broadcast signal through the external earphone antenna and performs modulation, generates a first signal, and transmits the first signal to the baseband chip, and the baseband chip After the modulation, the second signal is generated and output to the external earphone, and the second signal is demodulated and played by the external earphone; if not, the FM receiving chip receives the FM broadcast signal through the built-in antenna and modulates, generates a third signal and transmits to the The baseband chip generates a fourth signal after being modulated by the baseband chip, and determines whether the FM Bluetooth playback signal is currently detected. If yes, the baseband chip outputs the fourth signal to the Bluetooth module, and the Bluetooth module performs Bluetooth modulation on the fourth signal, and the generated The five signals are output to the Bluetooth headset via the Bluetooth antenna, and the Bluetooth headset solves the fifth signal. Play and play; if not, play the fourth signal directly through the microphone. That is to say, in the embodiment of the present invention, switching between multiple answering modes may be performed according to actual conditions or user selection, and is not limited to one answering mode, and the user's feeling and experience can be improved. Further, the purpose of receiving FM broadcasts using a Bluetooth headset can be achieved, avoiding that most FM-enabled mobile terminals require an external earphone antenna as an FM antenna as mentioned in the prior art. At the same time, using the Bluetooth headset to receive FM radio, it can support the wireless network. Further, when there are multiple Bluetooth headsets configured, the FM signal can be split into multiple Bluetooth headsets, thereby creating a wireless network audio environment for multi-person sharing. Further, the embodiment of the present invention further provides that a time threshold is set according to the needs of the user. When the non-operation state of each component is maintained beyond the set time, the baseband chip notifies the Bluetooth module to stop running, notifying each component to enter a low current sleep mode, and maintaining the minimum. Current consumption, this measure can effectively reduce the power consumption of the call and extend the standby time. DRAWINGS

1 is a specific flowchart of a first FM playing method provided by an embodiment of the present invention;

2 is a specific flowchart of the second FM playback method provided by the embodiment of the present invention;

3 is a schematic structural diagram of a first FM playback device provided by an embodiment of the present invention;

4 is another schematic structural diagram of the first FM playback device provided by the embodiment of the present invention;

5 is a schematic structural diagram of a first type of terminal provided by an embodiment of the present invention;

6 is another schematic structural diagram of the first terminal provided by the embodiment of the present invention;

7 is a schematic structural diagram of a second FM playback device provided by an embodiment of the present invention;

8 is a schematic structural diagram of the second terminal provided by the embodiment of the present invention. The embodiment of the present invention provides a solution to the problem that the external device can be used as an FM antenna to implement the FM function, and the FM playback mode is single, and the wireless network cannot be supported, and the multi-user cannot be supported at the same time. An FM playback method, the specific processing flow is shown in Figure 1. Step 101: The switching control module detects whether there is an external earphone antenna currently connected, and if so, performs step 4, 102, and 4, and if not, performs step 4 to 104 to 109; step 102, the FM receiving chip is externally connected. The earphone antenna receives the FM broadcast signal and modulates, generates a first signal and transmits the signal to the baseband chip; Step 103: The baseband chip modulates the first signal to generate a second signal, and outputs the signal to the external earphone, and the external signal is solved by the external earphone Adjusting and playing, the process ends; Step 104, the FM receiving chip receives the FM broadcast signal through the built-in antenna and modulates, generates a third signal and transmits the signal to the baseband chip; Step 105, the baseband chip modulates the third signal to generate a fourth signal; 106. Determine whether the FM Bluetooth playback signal is currently detected. If yes, perform steps 107 and 108. If no, perform step 4: 109. Step 107: The baseband chip outputs the fourth signal to the Bluetooth module, and the Bluetooth module performs the fourth signal. Bluetooth modulation, output the generated fifth signal to the Bluetooth headset via the Bluetooth antenna; Step 108, Bluetooth headset to the fifth letter Demodulates and playback, the flow ends; step 109, the playback signal directly into the microphone, the fourth, the process ends. In a specific implementation, the FM playback method provided by the embodiment of the present invention can be applied to any device capable of providing FM functions, for example, can be applied to a mobile phone, a computer, a radio, etc., of course, to ensure that the user can receive anytime and anywhere. With new messages and consultations, the FM playback method can also be applied to any mobile terminal as long as the mobile terminal can provide FM functionality. When the FM FM playback method is applied to the mobile terminal, the baseband chip, the FM receiving chip, the Bluetooth module, and the Bluetooth antenna are integrated inside the mobile terminal. In the process shown in FIG. 1, when the step 102 is implemented, the FM receiving chip receives the FM broadcast signal through the external earphone antenna and performs modulation to generate the first signal. The specific modulation mode is as follows: The FM receiving chip receives the FM broadcast signal through the external earphone antenna. Demodulation, filtering, amplification, mixing, ADC (Analog-to-Digital Converter) conversion and DSP audio processing, and output from the DAC to the baseband chip. In step 104, the FM receiving chip receives the FM via the built-in antenna. The signal is broadcast and modulated to generate a third signal, and the specific modulation method is similar to the modulation method in step 102. The flow shown in Figure 1 shows that in addition to receiving the FM broadcast signal through the built-in antenna, the FM broadcast signal can be received via the external earphone antenna. In the specific implementation, if there is an external earphone antenna, the FM antenna signal is received by the peripheral earphone antenna. If there is no external headphone antenna, you can use the built-in antenna to receive FM broadcast signals. The device shown in FIG. 1 can be used to implement at least three modes of implementing the FM mode, the external mode, and the external earphone mode. It is possible to transmit FM radio, for example, infrared mode. In the specific implementation, different modes can be selected according to the actual situation. For example, the Bluetooth mode can be selected during exercise and driving, avoiding the traction of the earphone antenna, and at the same time, it can be far away from the radiation and reduce the influence of electromagnetic waves on people. According to the foregoing, it can be seen that the method provided by the embodiment of the present invention ensures that the FM playback mode is diversified. When the configuration or the user selection changes, in the specific implementation, a switch control module integrated in the terminal may be used. The hardware mode enables selective connection of an external earphone antenna or an internal antenna. The switch control module can be used to quickly switch to the appropriate mode, making control between modes more convenient and faster. The following is a specific embodiment. In this embodiment, there are three implementation modes of a Bluetooth mode, an external release mode, and an external earphone mode. The specific implementation modes of the three modes are as follows: The input of the signal generates an output response, so that the output of the audio analog signal output by the baseband chip flows. When the external earphone antenna is connected, the baseband chip is turned on by the control switch, and the terminal uses the external earphone antenna as the FM antenna. The broadcast signal is received, outputted from the left and right channel linear analog output ports LOUT and ROUT through filtering, amplification, mixing, DSP audio processing and digital-to-analog conversion. The output audio signal is converted by the baseband chip and then transmitted to the external earphone; After the Bluetooth headset is connected, after the matching authentication, the baseband chip turns on the audio Bluetooth loop through the control switch, and the terminal uses the built-in antenna as the FM antenna to receive the broadcast signal through filtering, amplification, mixing, DSP audio processing and Digital analog output from digital audio output DOUT The output and output audio signals are converted by the baseband chip and transmitted to the Bluetooth module, and then transmitted through the Bluetooth antenna, and the Bluetooth headset receives; When the FM is directly externally placed, the baseband chip turns on the audio player speaker loop through the control switch, and the terminal uses the built-in antenna as the FM antenna to receive the broadcast signal, and linearly simulates from the left and right channels through audio processing and digital-to-analog conversion. The output ports LOUT and ROUT are output, and the output audio signal is converted and output again after being converted by the baseband chip, and finally the broadcast signal is output by electro-acoustic conversion. Since the FM playback in the prior art is continuously played, a large amount of power may be consumed in a short period of time, and the cost is high, and the user's feeling experience can be affected. In order to solve the problem, the embodiment of the present invention further proposes, according to the user's A time threshold needs to be set. In a specific implementation, when the switching control module detects that the non-operation state of any one or more components in the terminal is maintained for more than the set time, the baseband chip notifies the Bluetooth module to stop running, notifying each component to enter a low current. Sleep mode, to maintain the lowest current loss, use this measure can effectively reduce the power consumption of listening to FM, and extend the standby time. In implementation, the configured Bluetooth headset can be one or more, depending on the specific situation. When there are multiple Bluetooth headsets configured, the switching control module can control the Bluetooth module to the fifth according to the number of Bluetooth headsets. The signal is shunted by audio, and the shunted signal is output to multiple Bluetooth headsets, thereby creating a wireless network audio environment for multi-person sharing. The embodiment of the present invention further provides an FM playback method. The specific processing flow is as shown in FIG. 2, including: Step 201: The baseband chip modulates the sixth signal output by the FM receiving chip, and outputs the generated seventh signal to the Bluetooth. Step 202: The Bluetooth module performs Bluetooth modulation on the seventh signal, and outputs the generated eighth signal to the Bluetooth headset via the Bluetooth antenna. Step 203: The Bluetooth headset demodulates and plays the eighth signal. As shown in FIG. 2, when the step 201 is implemented, the FM receiving chip receives the FM broadcast signal through the built-in antenna and performs modulation to generate a sixth signal. The embodiment of the present invention further provides an FM playback device, and the specific structure is as shown in FIG. 3: a handover control module 301, configured to detect whether an external earphone antenna is currently accessed; and, determining whether an FM Bluetooth playback signal is currently detected;

The FM receiving chip 302 is configured to: when the switching control module 301 detects that an external earphone antenna is currently connected, receive an FM broadcast signal through an external earphone antenna and perform modulation to generate a first signal and transmit And; when the switching control module 301 does not detect that the external earphone antenna is currently connected, the FM broadcast signal is received by the built-in antenna and modulated to generate a third signal and output; the baseband chip 303 is configured to receive the first signal After the modulation, the second signal is generated and output to the external earphone 304; and the received third signal is modulated to generate a fourth signal; when the switching control module 301 detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth module. 305. In an embodiment, as shown in FIG. 4, the FM playback device may further include: an external headset 304, further configured to demodulate and play the received second signal; and the Bluetooth module 305 is further configured to receive the The fourth signal is Bluetooth modulated, and the generated fifth signal is output; the Bluetooth antenna 401 is configured to receive the fifth signal and output; the Bluetooth headset 402 is configured to demodulate and play the received fifth signal; When the switching control module 301 does not detect the FM Bluetooth playback signal, the fourth signal is directly played. In an embodiment, as shown in FIG. 4, the switching control module 301 may be further configured to: detect whether a non-operation state of any one or more components in the terminal is maintained beyond a set time; the baseband chip 303 may be further used for : Notifies the Bluetooth module 305 to stop running, notifying other components to enter the low current sleep mode to maintain the lowest current consumption. In an embodiment, as shown in FIG. 4, the switching control module 301 can be further configured to: when the Bluetooth headset 402 is at least one, control the Bluetooth module 305 to perform audio offloading on the fifth signal according to the number of the Bluetooth headsets. The embodiment of the present invention further provides a terminal, including an FM playback device, and the specific structure is as shown in FIG. 5, including: a handover control module 301, configured to detect whether an external earphone antenna is currently connected; and, determining whether the current detection is currently detected. FM Bluetooth playback signal; FM receiving chip 302, when the switching control module 301 detects that an external earphone antenna is currently connected, receives an FM broadcast signal through an external earphone antenna and modulates, generates a first signal and transmits And; when the switching control module 301 does not detect that the external earphone antenna is currently connected, the FM broadcast signal is received by the built-in antenna and modulated to generate a third signal and output; the baseband chip 303 is configured to receive the first signal After the modulation, the second signal is generated and output to the external earphone 304; and the received third signal is modulated to generate a fourth signal; when the switching control module 301 detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth module. 505. In an embodiment, the terminal provided by the embodiment of the present invention may further include another FM playback device, and the specific structure is as shown in FIG. 6. The handover control module 301 is configured to detect whether an external earphone antenna is currently connected; And determining whether the FM Bluetooth playback signal is currently detected; the FM receiving chip 302 is configured to: when the switching control module 301 detects that the external earphone antenna is currently connected, receive the FM broadcast signal through the external earphone antenna and perform modulation to generate the first signal. And outputting; and, when the switching control module 301 does not detect that the external earphone antenna is currently connected, the FM broadcast signal is received by the built-in antenna and modulated to generate a third signal and output; the baseband chip 303 is configured to receive the first The signal is modulated to generate a second signal and output to the external earphone 304; and, the received third signal is modulated to generate a fourth signal; when the switching control module 301 detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth Module 505; external headset 304, further configured to demodulate and play the received second signal; 305, further configured to perform Bluetooth modulation on the received fourth signal, and output the generated fifth signal; a Bluetooth antenna 401, configured to receive the fifth signal and output; and a Bluetooth headset 402, configured to solve the received fifth signal The microphone 403 is configured to directly play the fourth signal when the switching control module 301 does not detect the FM Bluetooth playback signal. In an embodiment, the terminal provided by the embodiment of the present invention may further include another FM playback device, and the specific structure is as shown in FIG. 6. The handover control module 301 is configured to detect whether an external earphone antenna is currently connected; , determining whether the FM Bluetooth playback signal is currently detected; The FM receiving chip 302 is configured to: when the switching control module 301 detects that an external earphone antenna is currently connected, receive an FM broadcast signal through an external earphone antenna and perform modulation, generate a first signal, and output; and, the switching control module 301 does not detect When the external earphone antenna is currently connected, the FM broadcast signal is received and modulated by the built-in antenna to generate a third signal and output; the baseband chip 303 is configured to modulate the generated first signal and generate the second signal and output it to the The external headset 304; and, the received third signal is modulated to generate a fourth signal; when the switching control module 301 detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth module 505; the external headset 304 is further used for The received second signal is demodulated and played; the Bluetooth module 305 is further configured to perform Bluetooth modulation on the received fourth signal, and output the generated fifth signal; the Bluetooth antenna 401 is configured to receive the fifth signal and output; The earphone 402 is configured to demodulate and play the received fifth signal, and the microphone 403 is used in the switching control module 301. When the FM Bluetooth playback signal is detected, the fourth signal is directly played; the switching control module 301 can be further configured to: detect whether the non-operation state of any one or more components in the terminal is maintained beyond a set time; the baseband chip 303 can be further used. In: The Bluetooth module 305 is notified to stop running, and the other components are notified to enter the low current sleep mode to maintain the minimum current loss. In an embodiment, the terminal provided by the embodiment of the present invention may further include another FM playback device, and the specific structure is as shown in FIG. 6. The handover control module 301 is configured to detect whether an external earphone antenna is currently connected; , determining whether the FM Bluetooth playback signal is currently detected;

The FM receiving chip 302 is configured to: when the switching control module 301 detects that an external earphone antenna is currently connected, receive an FM broadcast signal through an external earphone antenna and perform modulation, generate a first signal, and output; and, the switching control module 301 does not detect When the external earphone antenna is currently connected, the FM broadcast signal is received and modulated by the built-in antenna to generate a third signal and output; the baseband chip 303 is configured to modulate the generated first signal and generate the second signal and output it to the The external headset 304; and, the received third signal is modulated to generate a fourth signal; when the switching control module 301 detects the FM Bluetooth playback signal, the fourth signal is output to the Bluetooth module 505; the external headset 304 is further used for The received second signal is demodulated and played; the Bluetooth module 305 is further configured to perform Bluetooth modulation on the received fourth signal, and output the generated fifth signal; the Bluetooth antenna 401 is configured to receive the fifth signal and output; The headset 402 is configured to demodulate and play the received fifth signal, and the microphone 103 is configured to directly play the fourth signal when the switching control module 301 does not detect the FM Bluetooth playback signal; the handover control module 301 may be further used for When the Bluetooth headset 402 is at least one, the Bluetooth module 305 is controlled to perform audio offloading on the fifth signal according to the number of Bluetooth headsets. The embodiment of the present invention further provides a second FM playback device. The specific structure is as shown in FIG. 7. The FM receiving chip 701 is configured to output a sixth signal, and the baseband chip 702 is configured to modulate the sixth signal and output the generated signal. a seventh signal; a Bluetooth module 703, configured to perform Bluetooth modulation on the seventh signal, and output the generated eighth signal; a Bluetooth antenna 704, configured to output an eighth signal; and a Bluetooth headset 705, configured to solve the received eighth signal Play and play. In an embodiment, as shown in FIG. 7, the FM receiving chip 701 may be further configured to: receive and modulate the FM broadcast signal through the built-in antenna to generate a sixth signal. The embodiment of the present invention further provides a terminal. The specific structure is as shown in FIG. 8 , and includes:

The FM receiving chip 701 is configured to output a sixth signal; the baseband chip 702 is configured to modulate the sixth signal, and output the generated seventh signal; the Bluetooth module 703 is configured to perform Bluetooth modulation on the seventh signal, and output the generated Eight signals; The Bluetooth antenna 704 is configured to output an eighth signal, and the Bluetooth headset 705 is configured to demodulate and play the received eighth signal. In an embodiment, the terminal provided by the embodiment of the present invention may further include another FM playback device, and the specific structure is as shown in FIG. 8. The FM receiving chip 701 may be further configured to: receive an FM broadcast signal through the built-in antenna, and perform Modulation, generating a sixth signal. In the embodiment of the present invention, the switching control module detects whether an external earphone antenna is currently connected, and if so, the FM receiving chip receives the FM broadcast signal through the external earphone antenna and performs modulation, generates a first signal, and transmits the first signal to the baseband chip, and the baseband chip After the modulation, the second signal is generated and output to the external earphone, and the second signal is demodulated and played by the external earphone; if not, the FM receiving chip receives the FM broadcast signal through the built-in antenna and modulates, generates a third signal and transmits to the The baseband chip generates a fourth signal after being modulated by the baseband chip, and determines whether the FM Bluetooth playback signal is currently detected. If yes, the baseband chip outputs the fourth signal to the Bluetooth module, and the Bluetooth module performs Bluetooth modulation on the fourth signal, and the generated The five signals are output to the Bluetooth headset via the Bluetooth antenna, and the Bluetooth headset demodulates and plays the fifth signal; if not, the fourth signal is directly played by the microphone. That is to say, in the embodiment of the present invention, switching between multiple answering modes may be performed according to actual conditions or user selection, and is not limited to one answering mode, and the user's feeling and experience can be improved. Further, the purpose of receiving FM broadcasts using a Bluetooth headset can be achieved, avoiding that most FM-enabled mobile terminals require an external earphone antenna as an FM antenna as mentioned in the prior art. At the same time, using the Bluetooth headset to receive FM radio, it can support the wireless network. Further, when there are multiple Bluetooth headsets configured, the FM signal can be split into multiple Bluetooth headsets, thereby creating a wireless network audio environment for multi-person sharing. Further, the embodiment of the present invention further provides that a time threshold is set according to the needs of the user. When the non-operation state of each component is maintained beyond the set time, the baseband chip notifies the Bluetooth module to stop running, notifying each component to enter a low current sleep mode, and maintaining the minimum. Current consumption, this measure can effectively reduce the power consumption of the call and extend the standby time. It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications

Claims

An FM FM playing method, comprising:

The switching control module detects whether an external earphone antenna is currently connected;

If yes, the FM receiving chip receives the FM broadcast signal through the external earphone antenna and modulates, generates a first signal and transmits the first signal to the baseband chip, generates a second signal after being modulated by the baseband chip, and outputs the second signal to the external earphone, wherein the external earphone is Demodulating and playing the second signal; if not, the FM receiving chip receives the FM broadcast signal through the built-in antenna and modulates, generates a third signal and transmits the signal to the baseband chip, and generates the first signal by the baseband chip a fourth signal, determining whether the FM Bluetooth playback signal is currently detected, and if so, the baseband chip outputs the fourth signal to the Bluetooth module, and the Bluetooth module performs Bluetooth modulation on the fourth signal, and the generated The five signals are output to the Bluetooth headset via the Bluetooth antenna, and the Bluetooth headset demodulates and plays the fifth signal; if not, the fourth signal is directly played by the microphone. The method of claim 1 further comprising:

When the switching control module detects that the non-operation state of any one or more components in the terminal is maintained for more than a set time, the baseband chip notifies the Bluetooth module to stop running, notifying other components to enter a current sleep mode, and maintaining The maximum current loss. The method according to claim 1, wherein when the Bluetooth headset is at least one, the switching control module controls the Bluetooth module to perform audio offloading on the fifth signal according to the number of the Bluetooth headsets.

An FM FM playing method, comprising:

The baseband chip modulates the sixth signal output by the FM receiving chip, and outputs the generated seventh signal to the Bluetooth module;

The Bluetooth module performs Bluetooth modulation on the seventh signal, and outputs the generated eighth signal to the Bluetooth headset via the Bluetooth antenna;

The Bluetooth headset demodulates and plays the eighth signal. The method according to claim 4, wherein the FM receiving chip receives an FM broadcast signal via a built-in antenna and performs modulation to generate the sixth signal.

6. An FM FM playback device, comprising:

a switching control module, configured to detect whether an external earphone antenna is currently connected; and, determining whether an FM Bluetooth playback signal is currently detected;

An FM receiving chip, configured to: when the switching control module detects that an external earphone antenna is currently connected, receive an FM broadcast signal through an external earphone antenna and modulate, generate a first signal and output; and, when the switching control module When the external earphone antenna is not detected, the FM broadcast signal is received and modulated by the built-in antenna to generate a third signal and output; the baseband chip is configured to modulate the received first signal to generate a second signal. And outputting to the external earphone; and, the received third signal is modulated to generate a fourth signal; and when the switching control module detects the FM Bluetooth play signal, the fourth signal is output to the bluetooth module.

7. The apparatus according to claim 6, further comprising: an external earphone, further configured to demodulate and play the received second signal; and a Bluetooth module, further configured to receive the Four signals are Bluetooth modulated, and the generated fifth signal is output;

a Bluetooth antenna, configured to receive the fifth signal and output;

a Bluetooth headset, configured to demodulate and play the received fifth signal; and a microphone, configured to directly play the fourth signal when the switching control module does not detect the FM Bluetooth playback signal.

The device according to claim 7, wherein the switching control module is further configured to: detect whether a non-operation state of any one or more components in the terminal is maintained for more than a set time;

The baseband chip is further configured to: notify the Bluetooth module to stop running, notify other components to enter a low current sleep mode, and maintain a minimum current loss.

The device according to claim 7, wherein the switching control module is further configured to: when the Bluetooth headset is at least one, control the Bluetooth module according to the number of the Bluetooth headsets The fifth signal is used for audio shunting.

10. A terminal characterized by comprising the FM FM playback device of claim 6, 7, 8 or 9.

An FM FM playback device, comprising:

An FM receiving chip for outputting a sixth signal;

a baseband chip, configured to modulate the sixth signal, and output a generated seventh signal; a Bluetooth module, configured to perform Bluetooth modulation on the seventh signal, and output the generated eighth signal;

a Bluetooth antenna, configured to output the eighth signal to a Bluetooth headset;

a Bluetooth headset, configured to demodulate and play the received eighth signal.

12. The apparatus according to claim 11, wherein the FM receiving chip is further configured to: receive and modulate an FM broadcast signal via a built-in antenna to generate the sixth signal.

A terminal characterized by comprising the FM FM playback device according to claim 11 or 12.