WIRELESS AUDIO FREQUENCY PLAYING APPARATUS AND WIRELESS PLAYING SYSTEM USING THE SAME

• US 20120224698A1
• Filed: 06/24/2011
• Published: 09/06/2012
• Est. Priority Date: 03/03/2011
• Status: Active Grant

• Current Assignee: Keystone Semiconductor Incorporated
• Original Assignee: Keystone Semiconductor Incorporated
• Inventors: Yang, Chao-Tung
• Granted Patent: US 8,693,951 B2
• Time in Patent Office: Days
• US Class Current: 381/1
• CPC Class Codes: H04B 5/00 Near-field transmission systems, e.g. inductive or capacitive transmission systems

Abstract

A wireless audio frequency playing apparatus and a wireless playing system using the same are provided. The wireless playing system includes a wireless remote controller and the wireless audio frequency playing apparatus. The wireless audio frequency playing apparatus is operated under control of the wireless remote controller.

The wireless audio frequency playing apparatus includes a digital broadcasting chip, an amplifier, and a speaker. Two-way communication is processed between the digital broadcasting chip and the wireless remote controller. A content of the digital radio broadcasting program includes audio, text, images, binary data or video. The wireless audio frequency playing apparatus can play digital radio broadcasting program. The wireless audio frequency playing apparatus can independently process the digital audio broadcasting signal, and the wireless remote controller can control channel selection and a sound volume of the wireless audio frequency playing apparatus through a wireless manner.

Claims

1. A wireless audio frequency playing apparatus, operated under control of a wireless remote controller, the wireless audio frequency playing apparatus comprising:

a digital broadcasting chip, wherein two-way communication is processed between the digital broadcasting chip and the wireless remote controller, and the digital broadcasting chip receives a digital audio broadcasting signal, and transfers the digital audio broadcasting signal into a stereo high fidelity signal;

an amplifier, coupled to the digital broadcasting chip, for amplifying the stereo high fidelity signal into a stereo audio frequency signal; and

a speaker, coupled to the amplifier, for playing the stereo audio frequency signal.

2. The wireless audio frequency playing apparatus as claimed in claim 1, wherein the digital broadcasting chip receives a first Bluetooth protocol signal or a first Wi-Fi protocol signal from the wireless remote controller, and transmits a second Bluetooth protocol signal or a second Wi-Fi protocol signal to the wireless remote controller;

wherein a transfer content of two-way communication is related to audio, text, images, binary data or video.

3. The wireless audio frequency playing apparatus as claimed in claim 1, wherein the digital broadcasting chip comprises:

a radio frequency transceiver, for receiving a first Bluetooth protocol signal or a first Wi-Fi protocol signal from the wireless remote controller, and transmitting a second Bluetooth protocol signal or a second Wi-Fi protocol signal to the wireless remote controller, and transferring the digital audio broadcasting signal into an intermediate frequency signal;

a demodulator/decompressor, coupled to the radio frequency transceiver, for receiving the intermediate frequency signal, and converting the intermediate frequency signal into a digital channel signal under control of the wireless remote controller; and

a stereo digital to analog converter, coupled to the demodulator/decompressor, for converting the digital channel signal into the stereo high fidelity signal.

4. The wireless audio frequency playing apparatus as claimed in claim 3, wherein the demodulator/decompressor adjusts a digital broadcasting channel according to the first Bluetooth protocol signal or the first Wi-Fi protocol signal, so as to convert the digital channel signal.

5. The wireless audio frequency playing apparatus as claimed in claim 3, wherein the demodulator/decompressor adjusts an amplification of the amplifier according to the first Bluetooth protocol signal or the first Wi-Fi protocol signal.

6. The wireless audio frequency playing apparatus as claimed in claim 1, wherein the wireless audio frequency playing apparatus is a wireless earphone or a wireless portable speaker device.

7. The wireless audio frequency playing apparatus as claimed in claim 6, wherein the wireless audio frequency playing apparatus comprises a first power supply, and the first power supply is electrically connected to the digital broadcasting chip and the amplifier, and the first power supply is a rechargeable battery or a storage battery.

8. The wireless audio frequency playing apparatus as claimed in claim 1, wherein a power supply of the wireless audio frequency playing apparatus is an external type power supply.

9. A wireless playing system, comprising:

a wireless remote controller, comprising;

a first radio frequency transceiver; and

a wireless audio frequency playing apparatus, operated under control of the wireless remote controller, and the wireless audio frequency playing apparatus comprising;

a digital broadcasting chip, wherein two-way communication is processed between the digital broadcasting chip and the wireless remote controller, and the digital broadcasting chip receives a digital audio broadcasting signal, and transfers the digital audio broadcasting signal into a stereo high fidelity signal;

an amplifier, coupled to the digital broadcasting chip, for amplifying the stereo high fidelity signal into a stereo audio frequency signal; and

a speaker, coupled to the amplifier, for playing the stereo audio frequency signal.

10. The wireless playing system as claimed in claim 9, wherein the first radio frequency transceiver transmits a first Bluetooth protocol signal or a first Wi-Fi protocol signal to the digital broadcasting chip, and the first radio frequency transceiver receives a second Bluetooth protocol signal or a second Wi-Fi protocol signal from the digital broadcasting chip,

wherein a transfer content of two-way communication is related to audio, text, images, binary data or video.

11. The wireless playing system as claimed in claim 10, wherein the digital broadcasting chip adjusts a digital broadcasting channel according to the first Bluetooth protocol signal or the first Wi-Fi protocol signal, so as to convert a digital channel signal.

12. The wireless playing system as claimed in claim 10, wherein the digital broadcasting chip adjusts an amplification of the amplifier according to the first Bluetooth protocol signal or the first Wi-Fi protocol signal.

13. The wireless playing system as claimed in claim 9, wherein the digital broadcasting chip comprises:

a second radio frequency transceiver, for receiving a first Bluetooth protocol signal or a first Wi-Fi protocol signal from the first radio frequency transceiver, and transmitting a second Bluetooth protocol signal or a second Wi-Fi protocol signal to the first radio frequency transceiver, and transferring the digital audio broadcasting signal into an intermediate frequency signal; and

a demodulator/decompressor, coupled to the second radio frequency transceiver, for receiving the intermediate frequency signal, and converting the intermediate frequency signal into a digital channel signal under control of the wireless remote controller.

14. The wireless playing system as claimed in claim 9, wherein the wireless audio frequency playing apparatus is a wireless earphone or a wireless portable speaker device.

15. The wireless playing system as claimed in claim 14, wherein the wireless audio frequency playing apparatus comprises a first power supply, and the first power supply is electrically connected to the digital broadcasting chip, a digital to analog converter and the amplifier, and the first power supply is a rechargeable battery or a storage battery.

16. The wireless playing system as claimed in claim 9, wherein a power supply of the wireless audio frequency playing apparatus is an external type power supply.

17. The wireless playing system as claimed in claim 9, wherein the wireless remote controller is a mobile phone or a mobile Internet device.