TWI406511B - Wireless receiving and playback apparatus and system - Google Patents

Abstract

A wireless receiving and playback apparatus includes a radio circuit, a USB unit, a controlling unit, a storing unit, and an audio processing unit. The radio circuit receives broadcasting signals, and converts the broadcasting signals into digital audio signals. The USB unit receives a first receiving signal and a saving signal transmitted from a computer. The controlling unit controls the radio circuit to transmit the digital audio signals to the computer and the audio processing unit according to the first receiving signal and the saving signal respectively. The audio processing unit outputs audio data after coding the digital audio signals. The storing unit stores the audio data. Moreover, a wireless receiving and playback system is provided.

Description

Wireless receiving and playing device and wireless receiving and playing system

The invention relates to a wireless receiving and playing system and a wireless receiving and playing device having a storage function in the system.

The development of electronic science and technology has greatly improved the integration of various electronic products. For example, the integration of mobile phones and digital cameras, the integration of TV cards and LCD monitors, and the integration of notebook computers and wireless radio equipment. One of the components shown in FIG. 1 has a structural block diagram of a notebook computer that receives a wireless broadcast function. After the notebook is turned on, when the user selects the radio function, the FM receiver 2 starts receiving the wireless broadcast signal and converts the received wireless broadcast signal into a digital audio signal. The FM receiver 2 transmits the digital audio signal to the processing unit 4 via the system bus 3. The digital audio signal is further processed by the processing unit 4. The audio circuit 6 receives the processed digital audio signal by the system bus 3, and converts the received digital audio signal for transmission to the speaker 5 for output.

Integrating the FM receiver 2 into a notebook computer, the user is no longer limited to the digital broadcasting of the Internet when listening to the broadcast program, but this integration method enables the FM function implemented by the FM receiver 2 to be applied only in one laptop computer, The cross-platformity of the FM receiver 2 to implement the radio function is reduced. Although already The external wireless broadcast receiving device for computers reports that the standard RS232 serial interface and the computer are connected to the external wireless broadcast receiving device to realize the cross-platform function of the radio function, but the wireless broadcast receiving device has another problem: the user When listening to a broadcast program by using a wireless broadcast receiving device connected to a computer, only the favorite broadcast program content can be saved in a computer connected to the wireless broadcast receiving device, so that the stored broadcast program content can be repeatedly listened to, and the favorite broadcast can not be broadcasted. The program content is saved to the wireless broadcast receiving device. When the wireless broadcast receiving apparatus is connected to other computers, the user cannot conveniently listen to the previously saved broadcast program content, thereby reducing the convenience of the user using the wireless broadcast receiving apparatus.

In view of this, it is necessary to provide a wireless receiving and playing device having a function of saving broadcast program content, and when connected to a different computer, the user can conveniently listen to the previously saved broadcast program content.

It is also necessary to provide a wireless receiving and playing system.

A wireless receiving and playing device comprises: a radio circuit, a universal serial bus connector and a control module, wherein the radio circuit receives a wireless broadcast signal and converts the wireless broadcast signal into a digital audio signal, the universal serial bus link When the device is connected to the computer, the control module controls the radio circuit to transmit the digital audio signal to the computer according to the first receiving signal provided by the computer, wherein the wireless receiving and playing device further includes a storage module and an audio processing module. The control module controls the radio circuit to transmit the digital audio signal to the audio processing module for encoding according to a save signal provided by the computer to generate a sound. The audio processing module transmits the audio data to the storage module for storage.

A wireless receiving and playing system, comprising: a wireless receiving and playing device and a computer, wherein when the wireless receiving and playing device is connected to the computer, the wireless receiving and playing device converts the received wireless broadcast signal into a digital position according to the first received signal provided by the computer The audio signal is transmitted to the computer, and the computer performs digital-to-analog conversion and filtering on the received digital audio signal to output a sound; wherein the wireless receiving and playing device encodes the digital audio signal according to the saved signal provided by the computer to obtain Audio material and save the audio material.

With the above wireless receiving and playing device and system, the universal serial bus connector of the wireless receiving and playing device can be connected to different computers, and convert the received wireless broadcast signal into a digital audio signal and transmitted to the computer connected thereto to utilize The personal computer outputs the sound, and the control module can also control the radio circuit to transmit the digital audio signal to the audio processing module, and the audio processing module processes the received digital audio signal for transmission to the storage module for storage. When the wireless broadcast receiving device is connected to other computers, the user can still repeatedly listen to the previously saved broadcast program content.

2‧‧‧FM receiver

3‧‧‧System Bus

4‧‧‧Processing unit

5‧‧‧Speakers

6‧‧‧Audio circuit

11‧‧‧Common Serial Bus Interface

12‧‧‧System Bus

13‧‧‧Processing unit

14‧‧‧Command input unit

15‧‧‧ storage unit

16‧‧‧Audio circuit

17‧‧‧ Speaker

18‧‧‧Display unit

20‧‧‧Audio Processing Module

21‧‧‧Power Management Module

22‧‧‧Antenna

23‧‧‧ Radio circuit

24‧‧‧Digital/Analog Converter Module

25‧‧‧Speakers

26‧‧‧Control Module

27‧‧‧Common Serial Bus Connector

28‧‧‧Memory Module

29‧‧‧Power unit

31‧‧‧ Frequency selection

32‧‧‧Play

33‧‧‧Speakers

34‧‧‧ volume

35‧‧‧Withd

36‧‧‧Storage

37‧‧‧ band scanning

38‧‧‧Stop

42‧‧‧Broadcasting

44‧‧‧Recording

52‧‧‧Please select a recording file

54‧‧‧determined

56‧‧‧Cancelled

61‧‧‧Save path

62‧‧‧ Browse

63‧‧‧Save status bar

64‧‧‧determined

65‧‧‧Stop

FIG. 1 is a block diagram of a notebook computer having a wireless broadcast receiving function.

2 is a block diagram of a wireless receiving and playing device and a personal computer according to a preferred embodiment.

3 to 6 are operation interfaces of a personal computer connected to the wireless receiving and playing device schematic diagram.

As shown in FIG. 2, it is a module diagram of a wireless receiving and playing device and a personal computer according to a preferred embodiment. The wireless receiving and playing device 2 includes an audio processing module 20, a power management module 21, an antenna 22, a radio circuit 23, a digital/analog conversion module 24, a speaker 25, a control module 26, and a universal serial bus connector (Universal). Serial Bus 27, storage module 28 and power supply unit 29.

When the universal serial busbar connector 27 is not connected to the personal computer, the power supply unit 29 supplies power to the components of the wireless receiving and playback device 2 by the power management module 21. The power management module 21 performs related operations on the voltages provided by the power supply unit 29 to adapt to the operating voltages required by the components of the wireless receiving and playing device 2, and the related operations may be a voltage stabilization operation, a voltage division operation, a boost operation, and a voltage reduction operation. . The antenna 22 receives the wireless broadcast signal and transmits the received wireless broadcast signal to the radio circuit 23. The radio circuit 23 converts the received wireless broadcast signal into a digital audio signal and transmits the digital audio signal to the digital/analog conversion module 24. The digital/analog conversion module 24 converts the received digital audio signal into an analog signal and transmits it to the speaker 25. The speaker 25 receives the analog signal to emit a sound.

If the wireless receiving and playback device 2 receives a manipulation command to save the content of the broadcast program, the control module 26 controls the radio circuit 23 to transmit the digital audio signal to the audio processing module 20. The audio processing module 20 encodes the received digital audio signal to obtain audio data, and transmits the audio data to the storage module 28 for storage. When the wireless receiving and playing device 2 needs to play audio data, the control module 26 controls the storage module 28 to transmit the stored audio data to the audio processing module. Group 20. The audio processing module 20 decodes the received audio data to obtain a corresponding digital audio signal, and transmits the digital audio signal to the digital/analog conversion module 24. The digital/analog conversion module 24 converts the received digital audio signal into an analog signal and transmits it to the speaker 25. The speaker 25 receives the analog signal to emit a sound.

When the universal serial bus connector 27 is connected to the personal computer 1, the personal computer 1 starts to supply power to the wireless receiving and playing device 2 after the personal computer 1 initializes the wireless receiving and playing device 2. The personal computer 1 also generates a transmission signal and transmits the transmission signal to the wireless reception playback device 2. The universal serial bus connector 27 of the wireless receiving and playing device 2 receives the transmission signal supplied from the personal computer 1 and transmits the transmission signal to the control module 26. After receiving the transmission signal, the control module 26 generates a change signal to the power management module 21. After receiving the change signal, the power management module 21 starts receiving the voltage supplied from the personal computer 1 and stops receiving the voltage supplied from the power supply unit 29. In other preferred embodiments, the power management module 21 can begin charging the power unit 29 after receiving the voltage provided by the personal computer 1.

The control module 26 also generates a load signal after receiving the transmission signal, and transmits the load signal to the storage module 28. After receiving the load signal, the storage module 28 transmits the stored control code to the personal computer 1 via the universal serial bus connector 27. The personal computer 1 operates the wireless reception playback device 2 by its command input unit 14 by means of a control code. The command input unit 14 can be a keyboard or a mouse. These control operations include play, stop, automatic electronic tuning, volume control, band scanning, broadcast content storage, and exit. PC 1 receives the control generation After the code, start running the control code. The control code generates a corresponding control signal in accordance with the control operation of the command input unit 14. The personal computer 1 transmits a control signal to the wireless reception playback device 2. The control signal includes a first receiving signal for notifying the wireless receiving and playing device 2 to transmit the digital audio signal to the personal computer 1, and for notifying the wireless receiving and playing device 2 to save the digital audio signal, for notifying the wireless receiving and playing device 2 The stored audio material is transmitted to the second received signal of the personal computer 1.

The universal serial bus connector 27 of the wireless receiving and playing device 2 receives the control signal supplied from the personal computer 1 and transmits the control signal to the control module 26.

If the control signal received by the control module 26 is the first received signal, the control module 26 generates a first control signal and transmits the generated first control signal to the radio circuit 23. The radio circuit 23 can be implemented as a single-package integrated circuit, such as the radio component TEA5768HL. After receiving the first control signal, the radio circuit 23 stops transmitting the digital audio signal to the digital/analog conversion module 24, and starts transmitting the digital audio signal to the personal computer 1 through the universal serial bus connector 27.

If the control signal received by the control module 26 is a save signal, the control module 26 generates a second control signal and transmits the generated second control signal to the radio circuit 23. The radio circuit 23 transmits the digital audio signal to the audio processing module 20 after receiving the second control signal. The audio processing module 20 encodes the received digital audio signal to obtain audio data, and transmits the audio data to the storage module 28 for storage.

If the control signal received by the control module 26 is the second received signal, the control module 26 generates a third control signal and transmits the generated third control signal to the storage module 28. After receiving the third control signal, the storage module 28 transmits the stored audio data to the personal computer 1 via the universal serial bus connector 27. The personal computer 1 performs decoding, digital-to-analog conversion, filtering, and the like on the received audio data to output a corresponding sound.

The universal serial bus interface 11 of the personal computer 1 corresponding to the wireless receiving and playing device 2 is connected to the universal serial bus connector 27 of the wireless receiving and playing device 2. After the personal computer 1 detects the wireless reception playback device 2 by the universal serial bus interface 11, the initialization operation is performed on the wireless reception playback device 2. After the personal computer 1 completes the above operation, its processing unit 13 generates the transmission signal and transmits it to the universal serial bus interface 11 through the system bus 12 . The universal serial bus interface 11 transmits the transmission signal to the wireless reception playback device 2. The universal serial bus interface 11 receives the control code provided by the wireless receiving playback device 2 and is loaded into the storage unit 15 by the system bus 12 . The storage unit 15 includes a random access memory (RAM) and a hard disk in which the application is stored, and the control code is loaded into the random access memory.

The processing unit 13 starts reading the control code loaded in the storage unit 15. The processing unit 13 displays the human-computer interaction interface as shown in FIG. 3 on the display unit 18 in accordance with the read control code. The operation interface 30 in FIG. 3 shows the conventional controls seen on a general radio, including a frequency selection button 31, a play button 32, a speaker button 33, a volume control button 34, an exit button 35, a band scan button 37, and a stop button. 38. In addition, a broadcast storage button 36 is also included.

When the play button 32 is pressed by the command input unit 14, the display unit 18 will pop up the operation interface 40 as shown in FIG. 4, and the operation interface 40 displays "Please click the button for playing the content". If the click broadcast play button 42 is selected by the command input unit 14, the broadcast is started and returned to the operation interface 30 shown in FIG. Correspondingly, the processing unit 13 generates the first received signal according to the first play signal provided by the command input unit 14 by clicking the broadcast play button 42, and transmits the first received signal to the wireless receiving and playing device via the universal serial bus interface 11 2. The processing unit 13 controls the universal serial bus interface 11 to receive the digital audio signal provided by the wireless receiving and playing device 2 according to the read control code, and controls the audio circuit 16 to receive the universal serial bus interface 11 through the system bus 12 The digital audio signal. The audio circuit 16 performs digital-to-analog conversion, filtering, and the like on the received digital audio signal, and supplies it to the speaker 17 to output a sound. If the recording play button 44 is clicked by the command input unit 14, the display unit 18 will pop up the operation interface 50 as shown in FIG. 5, and the operation interface 50 displays "Please select the recording file". The recording data stored by the wireless receiving and playing device 2 can be selected by clicking the button 52. After selecting the recording data and clicking the OK button 54, the audio data is started to be played, and the operation interface 30 shown in FIG. 3 is returned. Correspondingly, the processing unit 13 generates the second receiving signal according to the second playing signal provided by the input unit 14 by clicking the determining button 54, and transmits the second receiving signal to the wireless receiving and playing device 2 via the universal serial bus interface 11 . The processing unit 13 controls the universal serial bus interface 11 to receive the audio data provided by the wireless receiving and playing device 2 according to the read control code, and controls the audio circuit 16 to receive the universal serial bus interface 11 through the system bus 12 Audio material. The audio circuit 16 decodes, digital-to-analog, filters, etc. the received audio data. After processing, the corresponding sound is output.

When the broadcast storage button 36 is pressed by the command input unit 14, the display unit 18 will pop up the operation interface 60 as shown in FIG. 6, and the operation interface 60 displays "Please fill in the following blank column, and press OK to start saving the broadcast program" . The appropriate save path can be selected for the save path blank field 61 by clicking the browse button 62 by the command input unit 14. In the present embodiment, the broadcast program is selected and saved in the wireless reception playback device 2. When the OK button 64 is clicked, the broadcast program is started to be saved. Correspondingly, the processing unit 13 generates the save signal, and transmits the save signal to the wireless receiving and playback device 2 via the universal serial bus interface 11 . The progress status bar 63 displays the progress of the current broadcast program save. When it is necessary to stop the saving, the stop button 65 can be clicked, and at the same time, return to the operation interface 30 shown in FIG.

As described above, the storage module 28 transmits the control code of the stored wireless receiving and playback device 2 to the personal computer 1 by the universal serial bus connector 27, and the personal computer 1 controls the wireless by its command input unit 14 by means of the control code. The playback device 2 is received. The antenna 22 transmits the received wireless broadcast signal to the radio circuit 23. The radio circuit 23 converts the received wireless broadcast signal into a digital audio signal and transmits it to the personal computer connected to the wireless receiving/playback device 2 via the universal serial bus connector 27 to output the sound using the personal computer 1. In addition, the control module 26 can also control the radio circuit 23 to transmit the digital audio signal to the audio processing module 20, and the audio processing module 20 processes the received digital audio signal for transmission to the storage module 28. When the wireless broadcast receiving apparatus 2 is connected to other computers, the user can still repeatedly listen to the previously saved broadcast program contents.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and those skilled in the art will be able to include equivalent modifications or variations in the spirit of the present invention.

Module diagram of wireless receiving playback device and personal computer

Claims (11)

A wireless receiving and playing device comprises: a radio circuit, a universal serial bus connector and a control module, wherein the radio circuit receives a wireless broadcast signal and converts the wireless broadcast signal into a digital audio signal, the universal serial bus link When the device is connected to the computer, the control module controls the radio circuit to transmit the digital audio signal to the computer according to the first receiving signal provided by the computer, wherein the wireless receiving and playing device further includes a storage module and an audio processing module. The control module controls the radio circuit to transmit the digital audio signal to the audio processing module for encoding to generate audio data according to the save signal provided by the computer, and the audio processing module transmits the audio data to the storage module. To store. The wireless receiving and playing device of claim 1, wherein the control module transmits the stored audio data to the computer according to the second receiving signal provided by the computer, and the computer decodes the received audio data. Digital-to-analog conversion and filtering to output sound. The wireless receiving and playing device of claim 2, wherein the universal serial bus connector is connected to a computer, the computer provides a transmission signal to the control module, so that the control module controls the The storage module transmits the stored control code to the computer. After the control code is run, the computer generates the first received signal and the second received signal according to the playing operation, and generates the saved signal according to the saving operation. The wireless receiving and playing device according to claim 3, wherein the electric The brain uses the control code to control the operation of the wireless receiving playback device including play, stop, automatic electronic tuning, volume control, band scanning, broadcast content storage, and exit. The wireless receiving and playing device of claim 1, wherein the wireless receiving and playing device further comprises: a power supply unit that supplies power to the wireless receiving and playing device, and the digital/analog conversion module receives the digital audio signal, and The digital audio signal is converted to an analog signal, and the speaker receives the analog signal to emit a sound. The wireless receiving and playing device of claim 5, wherein the wireless receiving device needs to play the stored audio data, the control module controls the storage module to transmit the audio data to the audio processing module. The audio processing module decodes the received audio data to obtain the corresponding digital audio signal, and transmits the digital audio signal to the digital/analog conversion module, and the digital/analog conversion module selects the digital audio The signal is converted to an analog signal, and the speaker receives the analog signal to emit a sound. The wireless receiving and playing device of claim 6, wherein the wireless receiving and playing device further comprises a power management module, wherein the power management module receives the voltage provided by the power supply unit, and processes the voltage and provides the a radio circuit, the digital/analog conversion module, the speaker, the control module, and the storage module. The wireless receiving and playing device of claim 7, wherein the control module further generates a change signal after receiving the transmission signal, and the power management module starts receiving the computer after receiving the change signal. Voltage while Stop receiving the voltage provided by the power unit. A wireless receiving and playing system comprises: a wireless receiving and playing device and a computer, wherein when the wireless receiving and playing device is connected to the computer, the wireless receiving and playing device converts the received wireless broadcast signal into digital audio according to the first received signal provided by the computer The signal is transmitted to the computer, and the computer performs digital-to-analog conversion and filtering on the received digital audio signal to output sound; wherein the wireless receiving and playing device encodes the digital audio signal according to the saved signal provided by the computer to obtain audio data. And save the audio material. The wireless receiving and playing system of claim 9, wherein the computer generates a second receiving signal according to the playing operation, and the wireless receiving and playing device transmits the stored audio data to the second receiving signal provided by the computer. The computer decodes, digital-analogs, and filters the received audio data to output sound. The wireless receiving and playing system of claim 10, wherein when the wireless receiving and playing device is connected to the computer, the computer provides a transmission signal to the control module, so that the wireless receiving and playing device stores the The control code is transmitted to the computer, and after the computer runs the control code, the first received signal and the second received signal are generated according to the playing operation, and the saved signal is generated according to the saving operation.