Video/audio playing apparatus with wireless signal transmission function and wireless video/audio transmission module thereof

• US 8,655,417 B2
• Filed: 03/21/2008
• Issued: 02/18/2014
• Est. Priority Date: 03/21/2008
• Status: Expired due to Fees

• Current Assignee: Sure Best Limited
• Original Assignee: Sure Best Limited
• Inventors: Lin, Pi-Fen
• Primary Examiner(s): Maung, Nay A
• Assistant Examiner(s): PEREZ, ANGELICA
• Application Number:
  US12/076,667
• Publication Number:
  US 20090238396A1
• Time in Patent Office: 2,160 Days
• Field of Search: 455 411- 413, 455/575.3, 455/550.1, 455/575.2, 455/569.1, 455/575.1, 381/370, 381/74, 381/367, 381/376, 381/309, 381/330, 381/71.6, 381380-381, 379/174, 379/430, 379/431
• US Class Current: 455/569.1
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

A video/audio playing apparatus with wireless audio signal transmission function comprising: a headset place slot, an audio processing module, a wireless audio signal transmission module, and a system audio interface. The headset place slot can accept and electrically connect a wireless headset, and transmits an electric potential signal. The audio processing module is used for outputting an audio signal. The wireless audio signal transmission module further comprises: an audio signal switching unit and a control unit. The audio signal switching unit is used for receiving the audio signal, and switches the output path of audio signal according to the electric potential signal. The control unit connects to the audio signal switching unit and connects to the wireless headset using wireless. Thus, the audio signal switching unit can switch the wireless headset or the system audio interface to output the audio signal according to the electric potential signal.

Claims

1. A television with a wireless audio signal transmission function, comprising:

a headset place slot, used for containing and electrically coupling a wireless headset, determining whether or not the wireless headset is in connection with the headset place slot, and transmitting an electric potential signal;

wherein the wireless headset includes a chargeable battery and a charging circuit used for receiving electric power to charge the battery;

an audio processing module used for outputting an internal audio signal;

a system audio interface, coupled to a speaker, used for outputting the internal audio signal through the speaker upon a receipt of the internal audio signal; and

a wireless audio signal transmission module, comprising;

a control unit capable of communicating with the wireless headset via a wireless connection and outputting the internal audio signal to the wireless headset;

an audio signal switching unit, selectively coupled with the system audio interface and the control unit depending on a voltage level of the electric potential signal outputted to the internal audio signal switching unit, used for receiving the internal audio signal, and determining whether or not to output the received internal audio signal to the system audio interface or the control unit;

a connecting interface, coupled to the headset place slot, used for transmitting the electric potential signal to the internal audio signal switching unit; and

a power supply circuit, coupled to the connecting interface, used for providing electric power to charge the battery of wireless headset through the charging circuit when the wireless headset is placed into the headset place slot and electrically connected with the connecting interface via charging contacts;

wherein;

when the electric potential signal is a high electric potential signal, indicating the wireless headset is placed into the headset place slot, the audio signal switching unit is coupled to the system audio interface before outputting the internal audio signal to the system audio interface;

when the electric potential signal is a low electric potential signal indicating the wireless headset is not placed into the headset place slot, the audio signal switching unit is coupled to the control unit before outputting the internal audio signal to the control unit;

wherein the wireless headset is used to receive the internal audio signal transmitted from the control unit and at least one external audio signal transmitted from an external device, and the wireless headset outputs the external audio signal while skipping the internal audio signal at the time of receiving the internal audio signal and the external audio signal substantially simultaneously.

2. The television with the wireless audio signal transmission function of claim 1, wherein the wireless audio signal transmission module is designed according to a specification selected from the collection of a Bluetooth™

technology, a far infrared technology and a radio frequency (RF) technology.

3. The television with the wireless audio signal transmission function of claim 1, wherein the wireless audio signal transmission module further comprises:

a memory unit, used for storing a program required for operating the control unit; and

an antenna module, coupled to the control unit, used for connecting the wireless headset via the wireless connection.

4. The television with the wireless audio signal transmission function of claim 1, further comprises a system audio interface coupled to the speaker.

5. A television with a wireless audio signal transmission function, comprising:

a main body, having a system audio interface and an audio processing module used for outputting an internal audio signal to the system audio interface; and

a wireless audio signal transmission module installed outside the main body and inserted to the system audio interface, further comprising;

a headset place slot, used for containing and electrically coupling a wireless headset, determining whether or not the wireless headset is in connection with the headset place slot, and transmitting an electric potential signal;

wherein the wireless headset includes a chargeable battery and a charging circuit used for receiving electric power to charge the battery;

an audio signal switching unit, used for receiving the internal audio signal;

a control unit, capable of communicating with the wireless head set and outputting the internal audio signal to the wireless headset via a wireless connection;

a connecting interface, coupled to the headset place slot, used for transmitting the electric potential signal to the audio signal switching unit; and

a power supply circuit, used for receiving power from an electric power and electrically connecting with the connecting interface;

wherein the power supply circuit converts and outputs electric power to charge the wireless headset when the wireless headset is placed into the headset place slot;

wherein the audio signal switching unit is selectively coupled to the control unit and the system audio interface depending on a voltage level of the electric potential signal indicative of whether or not the wireless headset is in connection with the headset place slot;

wherein;

when the electric potential signal is a high electric potential signal, indicative of the wireless headset is placed into the headset place slot, the audio signal switching unit is coupled to the audio system interface before sending the internal audio signal to the system audio interface;

when the electric potential signal is a low electric potential signal indicating the wireless headset is not placed into the headset place slot, the audio signal switching unit is coupled to the control unit before sending the internal audio signal to the control unit;

wherein the wireless headset is used to receive the internal audio signal transmitted from the control unit and at least one external audio signal transmitted from an external device, and the wireless headset outputs the external audio signal while skipping the internal audio signal at the time of receiving the internal audio signal and the external audio signal substantially simultaneously.

6. The television with the wireless audio signal transmission function of claim 5, wherein the wireless audio signal transmission module is designed according to a specification selected from the collection of a Bluetooth™

technology, a far infrared technology and a radio frequency (RF) technology.

7. The television with the wireless audio signal transmission function of claim 5, wherein the wireless audio signal transmission module further comprises:

a module battery unit.

8. The television with the wireless audio signal transmission function of claim 7, wherein the wireless control unit further comprises:

a battery charging module, used for receiving the electric power converted and outputted by the power supply circuit to charge the module battery unit.

9. The television with the wireless audio signal transmission function of claim 5, wherein the wireless audio signal transmission module further comprises:

a memory unit, used for storing a program required for the operation the control unit; and

an antenna module, coupled to the control unit, used for connecting the control unit to the wireless headset via the wireless connection.

10. The television with the wireless audio signal transmission function of claim 5, further comprises a module sound source interface coupled to the speaker.

11. The television with the wireless audio signal transmission function of claim 5, wherein the main body further comprises a housing with a place slot used for containing the wireless audio signal transmission module.