Wireless Microphone System, Control Method and Audio-video Conference System

• US 20200137490A1
• Filed: 10/09/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: Yealink Network Technology Company Limited
• Original Assignee: Yealink Network Technology Company Limited
• Inventors: FU, Siyu, LIN, Zongyan, GONG, Chongchao
• Granted Patent: US 10,820,098 B2
• Time in Patent Office: Days
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: H04R 1/08 Mouthpieces; Microphones; Attachments therefor
• CPC Class Codes: H04R 1/406 microphones
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 29/004 for microphones H04R29/007 takes precedence
• CPC Class Codes: H04R 3/00 Circuits for transducers , loudspeakers or microphones
• CPC Class Codes: H04R 3/005 for combining the signals of two or more microphones specially adapted for hearing aids H04R25/407

Abstract

The present disclosure discloses a wireless microphone system, which includes a host, a wireless communication component and multiple wireless microphones. The host includes a wireless signal processing component and an audio signal processing component. Each wireless microphone is configured to acquire a sound signal, convert the sound signal into an audio signal and wirelessly transmit the audio signal to the wireless communication component. The wireless communication component is configured to send the audio signal to the host. The wireless signal processing component is configured to receive the audio signal from the wireless communication component, perform signal processing on the audio signal to obtain speech data and send the speech data to the audio signal processing component. The audio signal processing component is configured to receive the speech data and perform data processing on the speech data to obtain sound data to be played for network transmission.

Claims

1. A wireless microphone system, comprising a host, a wireless communication component and a plurality of wireless microphones, the host comprising a wireless signal processing component and an audio signal processing component;

each wireless microphone of the plurality of wireless microphones, configured to acquire a sound signal, convert the sound signal into an audio signal and wirelessly transmit the audio signal to the wireless communication component;

the wireless communication component, configured to send the audio signal to the host;

the wireless signal processing component, configured to receive the audio signal from the wireless communication component, perform signal processing on the audio signal to obtain speech data and send the speech data to the audio signal processing component; and

the audio signal processing component, configured to receive the speech data and perform data processing on the speech data to obtain sound data to be played for network transmission.

2. The wireless microphone system as claimed in claim 1, wherein the wireless communication component comprises a Bluetooth component.

3. The wireless microphone system as claimed in claim 2, wherein each wireless microphone comprises a pick-up, an audio signal processing circuit and a wireless signal transmission component, an output end of the pick-up is connected with an input end of the audio signal processing circuit, an output end of the audio signal processing circuit is connected with the wireless signal transmission component, and the wireless signal transmission component is wirelessly connected with the wireless communication component.

4. The wireless microphone system as claimed in claim 3, wherein the Bluetooth component is a built-in Bluetooth chip, and the built-in Bluetooth chip is connected with the wireless signal processing component;

and the wireless signal transmission component of each wireless microphone is wirelessly connected with the built-in Bluetooth chip.

5. The wireless microphone system as claimed in claim 3, wherein the Bluetooth component is an external Bluetooth adapter, and the external Bluetooth adapter is connected with the wireless signal processing component through a data interface in the host;

and the wireless signal transmission component of each wireless microphone is wirelessly connected with the external Bluetooth adapter.

6. The wireless microphone system as claimed in claim 3, wherein each wireless microphone further comprises a wireless signal receiving component and a state controller configured to control power-on/off and a state of an indicator lamp, the wireless signal receiving component is wirelessly connected with the Bluetooth component, and an output end of the wireless signal receiving component is connected with the state controller.

7. A control method for the wireless microphone system as claimed in claim 3, comprising the following steps:

numbering, by the Bluetooth component, the plurality of wireless microphones successfully paired with the Bluetooth component according to a preset connection sequence;

establishing, by the Bluetooth component, an audio data channel between each wireless microphone and the Bluetooth component, the audio data channel being configured to transmit a path of coded and compressed wideband speech data; and

receiving, by the Bluetooth component, audio signals sent by the plurality of wireless microphones and sequentially sending, by the Bluetooth component, an audio signal corresponding to each wireless microphone to the host according to numbers of the plurality of wireless microphones.

8. The control method for the wireless microphone system as claimed in claim 7, wherein after receiving, by the Bluetooth component, the audio signal sent by the plurality of wireless microphones and sequentially sending, by the Bluetooth component, the audio signal corresponding to each wireless microphone to the host according to the numbers of the plurality of wireless microphones, the method further comprises:

performing, by the wireless signal processing component, signal processing on the sequentially received audio signal to obtain speech data and sending, by the wireless signal processing component, the speech data to the audio signal processing component; and

performing, by the audio signal processing component, data processing on the sequentially received speech data to obtain sound data to be transmitted through a network to a loudspeaker on the host and played by the loudspeaker.

9. The control method for the wireless microphone system as claimed in claim 8, wherein performing, by the wireless signal processing component, the signal processing on the sequentially received audio signal to obtain the speech data and sending, by the wireless signal processing component, the speech data to the audio signal processing component comprises:

decoding, by the wireless signal processing component, the sequentially received audio signal to obtain the speech data, caching, by the wireless signal processing component, the speech data, packing the speech data sent by each wireless microphone in the same time period in a Real Time Protocol (RTP) packet format and forwarding the packed speech data to the audio signal processing component.

10. An audio-video conference system, comprising the wireless microphone control system as claimed in claim 1.