TWI466479B - Broadcasts receiving device and method for automatically switching signal sources - Google Patents

Description

Broadcast receiving device for automatically switching signal source and method thereof

The present invention relates to a broadcast receiving apparatus, and more particularly to a broadcast receiving apparatus for automatically switching a signal source and a method thereof.

The traditional analog broadcast signal has many shortcomings such as noise and vulnerability, which makes people have to endure the occasional noise when listening to analog broadcast, which affects the listening quality. Thanks to the ever-changing technology of science and technology, in recent years, there have been several radio and listening channels such as radio and internet broadcasting. In particular, digital broadcasting has the advantages of anti-noise, anti-interference and anti-wave propagation fading, so that people can enjoy high-quality radio listening feast.

However, in order to listen to the digital broadcast, the user also needs to have a special digital radio in advance to reduce the user's willingness to listen to the digital broadcast, and the popularity of the digital broadcast is not good. Therefore, users are still accustomed to listening to traditional analog broadcasts or webcasts broadcast on computers.

Secondly, the quality of the network broadcast depends on the quality of the network connection. When the network quality is unstable, the network broadcast may be interrupted intermittently. This situation is more difficult for the user to endure than the noise of the analog broadcast. In addition, in order to listen to the webcast, users need to type or search the webcast's link URL, which is not as convenient as a traditional radio.

Therefore, how to maintain the user's habit of listening to the radio while improving the listening quality of the broadcast is a problem that researchers in the field are eager to solve.

In view of the above problems, the present invention provides a broadcast receiving apparatus and a method thereof for automatically switching a signal source, thereby solving the problem of the listening quality of analog broadcasting and network broadcasting existing in the prior art.

An embodiment of the present invention provides a broadcast receiving apparatus for automatically switching a signal source, including: an audio broadcast receiving module, a communication module, and a control module. The control module is electrically connected to the audio broadcast receiving module and the communication module.

The audio broadcast receiving module is configured to receive the audio broadcast signal and output the first audio stream of the received channel according to the channel setting signal. The communication module is used to connect to the Internet. The control module is configured to transmit a channel setting signal to the audio broadcast receiving module and play the first audio stream. When the signal strength of the audio broadcast signal is lower than the threshold, the control module automatically connects to the network broadcast server corresponding to the receiving channel via the communication module to download the voice packet, and accordingly switches to play the second audio stream. .

An embodiment of the present invention provides a broadcast receiving method for automatically switching a signal source, including: tuning and demodulating a received audio broadcast signal to generate a first audio stream corresponding to a received channel; playing a first audio stream; The signal strength of the audio broadcast signal; and when the signal strength of the audio broadcast signal is lower than the threshold, the automatic communication is connected to the network broadcast server corresponding to the receiving channel to download the voice packet and switch to play the second audio stream. .

The broadcast receiving apparatus and method thereof for automatically switching a signal source according to the present invention are applied to a portable device, and can automatically switch to another broadcast signal source when a broadcast signal source is unstable. Moreover, the original broadcast signal source can be automatically switched back to when the original broadcast signal source resumes normal reception. In this way, the user can obtain good broadcast listening quality, and there is no need to bother to find other channels when the broadcast signal is not well received.

1 is a schematic diagram showing the use of a broadcast receiving apparatus 100 for automatically switching a signal source according to an embodiment of the present invention.

As shown in FIG. 1, the broadcast receiving apparatus 100 is configured to receive the audio broadcast signal 210 transmitted by the broadcast station 200. The broadcast receiving device 100 can also be connected to the Internet 300, and the voice packet 410 of the network broadcast can be downloaded from the network broadcast server 400. That is to say, the broadcast receiving apparatus 100 can be used as a broadcasting radio and can also be used as an Online Radio.

Therefore, the broadcast receiving apparatus 100 may be substantially a mobile phone, a smart phone, a personal digital assistant (PDA), a personal navigation device (PND), or a tablet PC (Tablet PC). Portable device with broadcast radio function and networking capability.

The audio broadcast signal 210 can be an analog audio broadcast signal such as a frequency modulation (FM) signal or an amplitude modulation (AM) signal, or can be a digital audio broadcast (DAB) signal.

Fig. 2 is a schematic block diagram (1) of a broadcast receiving apparatus 100 for automatically switching a signal source according to an embodiment of the present invention.

As shown in FIG. 2, the broadcast receiving apparatus 100 that automatically switches the signal source includes an audio broadcast receiving module 110, a communication module 120, and a control module 130. The control module 130 is electrically connected to the audio broadcast receiving module 110 and the communication module 120.

Referring to FIG. 1 and FIG. 2, the audio broadcast receiving module 110 is configured to receive the audio broadcast signal 210 and output a first audio stream 520 of the received channel according to the channel setting signal 530. The communication module 120 is used to connect to the Internet 300. The control module 130 is configured to transmit the channel setting signal 530 to the audio broadcast receiving module 110 and play the first audio stream 520, whereby the user can listen to the broadcast program content of the corresponding receiving channel. When the signal strength of the audio broadcast signal 210 is lower than a threshold, the control module 130 is automatically connected to the network broadcast server 400 corresponding to the receiving channel via the communication module 120 to download the voice packet 410 and switch to play. The second audio stream 540.

That is to say, when the broadcast receiving apparatus 100 is used as a broadcast radio, and the broadcast corresponding to the received channel is played, if the audio broadcast signal 210 is so weak that the reception is unstable, the broadcast receiving apparatus 100 switches to the use of the Internet radio. The broadcast receiving apparatus 100 is connected to the web broadcast server 400 corresponding to the broadcast receiving channel, and receives the voice packet 410 of the web broadcast to continue playing the content of the original broadcast program.

In a specific application example, when the broadcast receiving device 100 is connected to the network broadcast server 400 to play the second audio stream 540, the control module 130 detects the signal strength of the audio broadcast signal 210 and the signal strength of the audio broadcast signal 210. When it is above the threshold, it automatically switches to play the first audio stream 520. In other words, when the broadcast receiving device 100 switches to the broadcast network broadcast due to the poor signal of the audio broadcast signal 210, the signal strength of the audio broadcast signal 210 is continuously detected to be normal. If the signal is replied, the device is switched to play. Analog broadcast or digital broadcast, but the embodiment of the present invention is not limited to detecting whether the signal strength of the audio broadcast signal 210 is back to normal.

In another specific application, when the broadcast receiving apparatus 100 is connected to the network broadcast server 400 to play the second audio stream 540, the control module 130 detects the transmission quality of the voice packet 410. When the transmission quality of the voice packet 410 is not good, the control module 130 generates a channel setting signal 530 according to the network broadcast server 400 to switch to play the first audio stream 520 of the receiving channel of the corresponding network broadcast server 400. Thereby, the broadcast receiving apparatus 100 that originally broadcasts the network broadcast can be switched to play the analog broadcast or the digital broadcast corresponding to the received channel when the network quality is unstable.

FIG. 3 is a schematic block diagram of an audio broadcast receiving module 110 according to an embodiment of the present invention.

As shown in FIG. 3, the audio broadcast receiving module 110 includes an antenna 111, a tuning unit 113, and a demodulating unit 115 that are sequentially connected. The demodulation unit 115 is connected to the control module 130. The control module 130 is connected to the tuning unit 113.

Referring to FIGS. 1 and 3, the antenna 111 is configured to receive the audio broadcast signal 210, and the tuner unit 113 outputs the audio signal 510 corresponding to the received channel. Moreover, the tuning unit 113 receives the channel setting signal 530 output by the control module 130, so as to control which of the receiving channels the audio signal 510 is output. The demodulation unit 115 receives the audio signal 510 and demodulates it into the first audio stream 520, and outputs the first audio stream 520 to the control module 130.

Since the operation principles of the antenna 111, the tuning unit 113, and the demodulation unit 115 are well known to those skilled in the art, they are not described herein.

It is worth noting that the audio broadcast signal 210 can be an analog audio broadcast signal or a digital audio broadcast signal. Thus, tuning unit 113 can include an analog tuner or a digital tuner; demodulation unit 115 can include an analog demodulator or a digital demodulator. The analog tuner is connected to an analog demodulator to receive an analog audio broadcast signal to generate an analog audio stream. The digital tuner is connected to the digital demodulator to receive the digital audio broadcast signal to generate a digital audio stream.

In a specific application example, when the tuner unit 113 includes an analog tuner and a digital tuner, and the demodulation unit 115 includes an analog demodulator and a digital demodulator, the audio broadcast receiving module 110 further includes a selection unit connected to the The analog demodulator, the digital demodulator and the control module 130 are arranged for the control module 130 to select to receive an analog audio stream or a digital audio stream. Here, the selection unit can switch the switch implementation or be implemented by the processor together with the control module 130.

In a specific application example, the control module 130 can detect the signal strength of the audio broadcast signal 210 by detecting the signal strength of the audio signal 510 or the first audio stream 520, thereby determining whether to switch to a broadcast network broadcast. . Here, the control module 130 can be a processor.

Fig. 4 is a schematic block diagram (2) of a broadcast receiving apparatus 100 for automatically switching a signal source according to an embodiment of the present invention.

In a specific application, the communication module 120 includes a mobile communication unit 121 and a wireless local area network unit 123, which are respectively connected to the control module 130. However, the embodiment of the present invention is not limited thereto, and may also include mobile communication. One of the unit 121 and the wireless area network unit 123.

Here, the mobile communication unit 121 can support a communication module of mobile communication technologies such as GSM, GPRS, EDGE, WCDMA, CDMA2000, WiMAX or LTE; the wireless area network unit 123 can be 802.11b/g/n, Bluetooth or infrared Such as wireless transmission module to achieve.

In a specific application, the broadcast receiving device 100 further includes a storage module 140 electrically connected to the control module 130 for storing at least one channel comparison table.

Referring to Figure 5, there is shown a schematic diagram of a channel look-up table 600 in accordance with an embodiment of the present invention. The channel comparison table 600 includes information such as the receiving channel 610 and the corresponding broadcast link website 620. Thereby, the channel comparison table 600 can be used by the control module 130 to find the broadcast link website 620 of the network broadcast server 400 or the corresponding receiving channel 610.

For example, when the broadcast receiving device 100 wants to switch from receiving the first audio stream 520 to the second audio stream 540, the control module 130 can search the channel comparison table 600 to find the received channel 610 according to the current broadcast channel 610. The broadcast link URL 620 of the corresponding webcast server 400 is output. Thereby, the broadcast receiving apparatus 100 can connect to the web broadcast server 400 according to the broadcast link website 620 to play the web broadcast content.

On the other hand, when the broadcast receiving apparatus 100 is to be switched to receive the second audio stream 540 to the first audio stream 520, the control module 130 can be used in the channel comparison table 600 according to the currently connected network broadcast servo. The broadcast of the browser 400 links the website 620 to find the corresponding receiving channel 610. Thereby, the control module 130 can send the channel setting signal 530 corresponding to the receiving channel 610 to the audio broadcast receiving module 110 to play analog broadcast or digital broadcast.

Here, other information may also be recorded in the channel comparison table 600, for example, a station code carried by a digital audio broadcast signal. The control module 130 can search the channel comparison table 600 for the receiving channel 610 or the broadcast link 620 of the corresponding station code to switch the broadcast signal source to an analog audio broadcast signal or a voice packet of the network broadcast.

It is worth noting that because the audio broadcast signal may broadcast different program content on the same frequency in different geographical locations. Therefore, the channel comparison table 600 can further record the receiving channel 610 and the corresponding broadcast link website 620 according to different geographical locations.

In a specific application example, as shown in FIG. 4, the broadcast receiving apparatus 100 further includes a positioning module 150 electrically connected to the control module 130. The positioning module 150 is configured to identify the geographic location of the broadcast receiving device 100 for the control module 130 to retrieve information in the channel comparison table 600 according to the geographic location.

In this case, the positioning module 150 can be a GPS (Global Positioning System) module, thereby obtaining information such as the latitude and longitude coordinates of the location, or implementing the mobile communication module based on the GSM/GPRS technology, thereby transmitting the base. The station performs positioning to obtain the location. However, the embodiment of the present invention is not limited to the geographic location of the positioning module 150.

For example, the control module 130 may also be based on a local area network address connected to the communication module 120 or a Media Access Control (MAC) address of the connected access point (AP). The location of the broadcast receiving apparatus 100 is determined.

In a specific application example, as shown in FIG. 4, the broadcast receiving apparatus 100 further includes a display module 160, an input module 170, and an audio output module 180. The display module 160, the input module 170, and the audio output module 180 are electrically connected to the control module 130, respectively.

The display module 160 is configured to display a user interface to display the currently broadcast source of the broadcast signal as an analog broadcast, a digital broadcast, or a network broadcast. At the same time, the display module 160 can also display information such as the currently broadcasted broadcast channel, broadcast station name, program name or program host. Here, the display module 160 can be implemented by a screen or a projector.

The input module 170 is configured to generate a switching signal 550 for transmission to the control module 130. The control module 130 switches to play the first audio stream 520 or the second audio stream 540 according to the switching signal 550. Alternatively, the control module 130 may select to play an analog audio stream of an analog analog broadcast or a digital audio stream of a digital broadcast according to the switching signal 550. Here, the input module 170 can be implemented by a button, a microphone, a camera, a touch panel or other sensors. The display module 160 and the input module 170 can be implemented by touching a screen.

The audio output module 180 is configured to output the first audio stream 520 or the second audio stream 540 played by the control module 130. Here, the audio output module 180 can be implemented by a speaker or a sound source connection port.

In a specific application example, the control module 130 searches the channel comparison table 600 according to the switching signal 550 generated by the input module 170, and switches from playing the first audio stream 520 to the second audio stream 540, or by playing the first. The two audio stream 540 switches to the first audio stream 520. Thereby, the user can actively switch the broadcast signal source.

Figure 6 is a flow chart (1) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention.

Referring to Fig. 6, the broadcast receiving method of automatically switching the signal source is applied to the portable device. After the portable device is powered on and initialized, step S710 is executed to adjust and demodulate the received audio broadcast signal 210 to generate a first audio stream 520 corresponding to the received channel. Next, the first audio stream 520 is played (step S720). During the playback of the first audio stream 520, the signal strength of the audio broadcast signal is detected (step S730). It is judged whether the signal strength of the audio broadcast signal is lower than the threshold (step S740). If yes, go to step S750, if no, go back to step S730. In step S750, the communication is connected to the network broadcast server 400 corresponding to the receiving channel to download the voice packet and switch to play the second audio stream 540. Therefore, when the audio broadcast signal 210 is not good, the first audio stream 520 is automatically switched to play the second audio stream 540.

Figure 7 is a flow chart (2) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention.

In a specific application example, as shown in FIG. 7, step S750 further includes step S760, step S770, and step S780. In step S760, although the second audio stream 540 has been switched to continue to detect the signal strength of the audio broadcast signal 210. Then, it is judged whether the signal strength of the audio broadcast signal returns to be higher than the threshold (step S770). If not, the process returns to step S760; if so, the first audio stream 520 is switched to play (step S780). After step S780 is performed, the process proceeds to step S710 again, and the steps below step S710 are performed in succession, and the signal strength of the audio broadcast signal 210 is detected again in step S730.

In step S750, the network broadcast server 400 that is connected to the corresponding receiving channel further includes the following steps: First, the received channel comparison table 600 is added or updated. Next, in the channel comparison table 600, the broadcast link website 620 of the webcast server 400 is searched according to the receiving channel 610. Finally, the network broadcast server 400 can be connected according to the broadcast link website 620.

The step of searching the broadcast link website 620 of the network broadcast server 400 according to the receiving channel 610 may further include the following steps: First, identifying the geographical location where the location is located. Then, the information in the channel comparison table 600 is retrieved according to the geographic location. Thereby, the difference in geographic location can be further considered to match the corresponding receiving channel.

In a specific application example, the channel comparison table 600 may be a plurality of, and the plurality of channel comparison tables 600 respectively record the receiving channel 610 corresponding to different geographical locations and the corresponding broadcast link website 620. For example, one of the channel comparison tables 600 records the receiving channel 610 corresponding to the first region and the corresponding broadcast link site 620; the other channel matching table 600 records the receiving channel 610 corresponding to the second region and the corresponding broadcast link site 620.

Therefore, in the step of searching the broadcast link website 620 of the network broadcast server 400 according to the receiving channel 610, the following steps may be further included: first, identifying the geographical location where the location is located. Next, the channel comparison table 600 of the corresponding region is found according to the geographical location. In the channel comparison table 600 corresponding to the geographical location, the broadcast link URL 620 of the corresponding webcast server 400 is searched according to the receiving channel 610. Finally, the communication is connected to the webcast server 400 in accordance with the broadcast link web site 620.

In another specific application, in step S780, in order to switch to play the first audio stream 520, it is necessary to obtain the receiving channel 610 corresponding to the currently connected broadcast link address 620, and the following steps may be performed: The geographical location of the location, and find the channel comparison table 600 of the corresponding area according to the geographical location. Then, the corresponding receiving channel 610 can be searched according to the broadcast link address 620 of the webcast server 400. Finally, the audio broadcast signal 210 can be received according to the receiving channel 610 to play the first audio stream 520.

Figure 8 is a flow chart (3) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention. Figure 9 is a flow chart (4) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention. Figure 10 is a flow chart (5) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention.

Referring to Figures 8, 9, and 10, in a specific application example, the broadcast receiving method of FIG. 8 and the broadcast receiving method of FIG. 6 both perform steps S710 to S750, the difference being the broadcast receiving of FIG. In the initialization process performed before the step S710 is performed, the user can set or pre-set the main received broadcast signal source by the portable device. Thereby, when the received quality of the main broadcast signal source is not good, switching to another broadcast signal source, and when the receiving quality of the main broadcast signal source is restored, switching back to the main broadcast signal source.

Therefore, after step S750, step S751 is further included: the preset is to play the first audio stream 520 or the second audio stream 540, and if the first audio stream 520 is played, then the step is entered. S760, if the second audio stream 540 is played as the main stream, the process proceeds to step S761.

If the process proceeds to step 760, the broadcast receiving method shown in FIG. 7 also detects the signal strength of the audio broadcast signal 210 and continues with steps 770 and 780, and thus the details are not repeated herein.

If the process proceeds to step 761, the transmission quality of the voice packet 410 is detected. Next, it is judged whether or not the transmission quality of the voice packet 410 is stable (step S771). If the transmission quality of the voice packet 410 is stable, the process returns to step S761 to continue detecting the transmission quality of the voice packet 410. If the transmission quality of the voice packet 410 is unstable, the process proceeds to step S781, and the first audio string is switched. Stream 520. At this time, the process proceeds to step S710 again, and the steps below step S710 are successively performed, and the signal strength of the audio broadcast signal 210 is detected again in step S730.

In summary, the broadcast receiving apparatus and method thereof for automatically switching a signal source according to the present invention are applied to a portable device, and can automatically switch to another broadcast signal source when a broadcast signal source is unstable. Moreover, the original broadcast signal source can be automatically switched back to when the original broadcast signal source resumes normal reception. In this way, the user can obtain good broadcast listening quality, and there is no need to bother to find other channels when the broadcast signal is not well received.

While the present invention has been described above in the foregoing embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

100. . . Broadcast receiving device

110. . . Audio broadcast receiving module

111. . . antenna

113. . . Tuning unit

115. . . Demodulation unit

120. . . Communication module

121. . . Mobile communication unit

123. . . Wireless area network unit

130. . . Control module

140. . . Storage module

150. . . Positioning module

160. . . Display module

170. . . Input module

180. . . Audio output module

200. . . radio station

210. . . Audio broadcast signal

300. . . Internet

400. . . Network broadcast server

410. . . Voice packet

510. . . Audio signal

520. . . First audio stream

530. . . Channel setting signal

540. . . Second audio stream

550. . . Switching signal

600. . . Channel comparison table

610. . . Receiving channel

620. . . Broadcast link URL

1 is a schematic diagram showing the use of a broadcast receiving apparatus for automatically switching a signal source according to an embodiment of the present invention;

2 is a schematic structural diagram (1) of a broadcast receiving apparatus for automatically switching a signal source according to an embodiment of the present invention;

3 is a schematic structural diagram of an audio broadcast receiving module according to an embodiment of the present invention;

Figure 4 is a schematic structural diagram (2) of a broadcast receiving apparatus for automatically switching a signal source according to an embodiment of the present invention;

Figure 5 is a schematic diagram of a channel comparison table according to an embodiment of the present invention;

Figure 6 is a flow chart (1) of a method for automatically receiving a broadcast source of a signal source according to an embodiment of the present invention;

Figure 7 is a flow chart (2) of a method for automatically receiving a broadcast source of a signal source according to an embodiment of the present invention;

Figure 8 is a flow chart (3) of a method for automatically receiving a broadcast source of a signal source according to an embodiment of the present invention;

Figure 9 is a flow chart (4) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention;

Figure 10 is a flow chart (5) of a broadcast receiving method for automatically switching a signal source according to an embodiment of the present invention.

Claims (11)

A broadcast receiving device for automatically switching a signal source, comprising: an audio broadcast receiving module, configured to receive an audio broadcast signal, and output a first audio stream of a receiving channel according to a channel setting signal; a communication module, Connected to an internet network; and a control module electrically connected to the audio broadcast receiving module and the communication module for transmitting the channel setting signal to the audio broadcast receiving module and playing the first The audio stream, wherein when the signal strength of the audio broadcast signal is lower than a threshold, the control module is automatically connected to a network broadcast server corresponding to the receiving channel via the communication module to download a voice packet. And switching to play the second audio stream corresponding to one of the voice packets, so that the first audio stream and the second audio stream correspond to the same one of the receiving channels. The broadcast receiving device of claim 1, wherein the control module detects the signal strength of the audio broadcast signal when the second audio stream is played, when the signal strength of the audio broadcast signal is higher than the threshold , automatically switches to play the first audio stream. The broadcast receiving device of claim 1, wherein when the second audio stream is played, the control module generates the channel setting signal according to the connected network broadcast server to switch to play the first audio message. Streaming. The broadcast receiving device of claim 1, further comprising a storage module electrically connected to the control module, configured to store at least one channel comparison table, wherein the control module searches for one of the network broadcast servers Broadcast link URL or the receiving channel. The broadcast receiving device of claim 4, further comprising a positioning module electrically connected to the control module for identifying a geographic location of the broadcast receiving device for the control module to capture based on the geographic location The at least one channel compares the information in the table. The broadcast receiving device of claim 1, further comprising an input module electrically connected to the control module to generate a switching signal, wherein the control module switches to play the first audio stream according to the switching signal or The second audio stream. A method for automatically receiving a broadcast source of a signal source includes: tuning and demodulating a received audio broadcast signal to generate a first audio stream corresponding to a received channel; playing the first audio stream; detecting the audio stream The signal strength of the broadcast signal; and when the signal strength of the audio broadcast signal is lower than a threshold, the automatic communication is connected to a network broadcast server corresponding to the receiving channel to download a voice packet and switch to play correspondingly The second audio stream of the voice packet is such that the first audio stream and the second audio stream correspond to the same one of the receiving channels. The broadcast receiving method of claim 7, after switching to play the second audio stream, further comprising: detecting a signal strength of the audio broadcast signal; and when the signal strength of the audio broadcast signal is restored to be higher than the valve When the value is changed, it switches to play the first audio stream. The broadcast receiving method of claim 7, wherein the automatically connecting to the network broadcast server corresponding to the receiving channel further comprises: adding or updating the received at least one channel comparison table; and the at least one channel comparison table Searching for a broadcast link address of the network broadcast server according to the receiving channel; and communicating to the network broadcast server according to the broadcast link website. The broadcast receiving method of claim 9, wherein the searching for a broadcast link of the network broadcast server according to the received channel further comprises: identifying a geographical location; and capturing the at least one channel according to the geographic location; Compare the information in the table. The broadcast receiving method of claim 9, wherein the searching for a broadcast link URL of the web broadcast server according to the receiving channel further comprises: identifying a geographical location; and comparing the at least one channel corresponding to the geographic location In the table, a broadcast link URL of the web broadcast server is searched according to the receiving channel; and the communication is connected to the web broadcast server according to the broadcast link website.