Computer system with wireless audio signal transmitter module

• US 20040147224A1
• Filed: 06/11/2003
• Published: 07/29/2004
• Est. Priority Date: 01/29/2003
• Status: Active Grant

• Current Assignee: Mitac Technology Corporation (MiTAC Holdings Corp.)
• Original Assignee: Mitac Technology Corporation (MiTAC Holdings Corp.)
• Inventors: Lee, Rong-Jung
• Granted Patent: US 7,107,074 B2
• Time in Patent Office: Days
• US Class Current: 455/41.3
• CPC Class Codes: G06F 3/16 Sound input; Sound output speech processing G10L
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones

Abstract

A computer system provides a wireless audio signal transmitter module which is capable of transmitting audio signal wirelessly from a host computer to at least one remote wireless signal receiver. The wireless audio signal transmitter module is connected to a sound effect interface for receiving audio signal from the computer. The audio signal is processed, modulated, and then transmitted out by an antenna. The wireless signal is received and processed by the audio signal receiver located within an effective transmission distance. The signal is then transmitted to a user via a microphone.

Claims

1. A computer system with a wireless signal transmitter module for transmitting a wireless signal, which comprises:

a sound effect interface connected to the computer system for transmitting an audio signal; and

a wireless audio signal transmitter module coupled to the sound effect interface;

wherein the wireless audio signal transmitter module receives the audio signal through the sound effect interface, and after processing and modulation of the audio signal, the wireless audio signal transmitter module transmitting the wireless signal to at least one remote wireless signal receiver located within an effective transmission distance from the wireless audio signal transmitter module.

2. The computer system as claimed in claim 1, wherein the wireless audio signal transmitter module comprises:

an audio signal processing circuit for receiving the audio signal transmitted from the sound effect interface and generating a wireless signal;

a signal modulation circuit coupled to the audio signal processing circuit for modulating the wireless signal;

an amplification circuit coupled to the signal modulation circuit for amplifying the modulated wireless signal; and

a signal transmitting circuit coupled to the amplification circuit for transmitting the amplified wireless signal from the amplification circuit.

3. The computer system as claimed in claim 2, wherein the wireless audio signal transmitter module further comprises a tuning device coupled to the signal modulation circuit.

4. The computer system as claimed in claim 2, wherein the wireless audio signal transmitter module further comprises an encoding unit coupled to the signal modulation circuit.

5. The computer system as claimed in claim 1, wherein the wireless signal receiver comprises:

a wireless signal receiver circuit connected to an antenna for receiving the wireless signal transmitted by the wireless audio signal transmitter module;

a filtering and amplification circuit coupled to the wireless signal receiver circuit for filtering and amplifying the received signal of the wireless signal receiver circuit;

a signal demodulation circuit coupled to the filtering and amplification circuit for modulating the amplified signal of the filtering and amplification circuit and providing a modulated signal; and

a microphone coupled to the signal demodulation circuit for receiving the modulated signal of the signal demodulation circuit.

6. The computer system as claimed in claim 5, wherein the wireless signal receiver further comprises a tuning device coupled to the signal modulation circuit.

7. The computer system as claimed in claim 5, wherein the wireless signal receiver further comprises a decoding unit.

8. The computer system as claimed in claim 5, wherein the wireless signal receiver comprises a power source comprised of a battery.

9. A computer system with a wireless signal transmitter module for transmitting a wireless signal, which comprises:

a computer which comprises a sound effect interface for generating an audio signal and transmitting the audio signal;

a wireless audio signal transmitter module coupled to the sound effect interface for receiving the audio signal from the sound effect interface, and after processing and modulation, the wireless audio signal transmitter module transmits the wireless signal, the wireless audio signal transmitter module also comprising a tuning device for tuning the wireless audio signal transmitter module operated at a frequency and an encoding unit for encoding the wireless signal transmitted by the wireless audio signal transmitter module; and

a plurality of wireless signal receivers, each of the wireless signal receivers comprises a tuning device which is set at a frequency in correspondence with the tuning frequency of the tuning device of the wireless audio signal transmitter module and a decoding unit for performing a decoding operation corresponding to the encoding unit of the wireless audio signal transmitter module;

wherein each of the wireless signal receivers located within an effective transmission distance of the wireless audio signal transmitter module receives the wireless signal transmitted from the wireless audio signal transmitter module

10. The computer system as claimed in claim 9, wherein the wireless audio signal transmitter module comprises:

an audio signal processing circuit for receiving the audio signal transmitted from the sound effect interface and generating a wireless signal;

a signal modulation circuit coupled to the audio signal processing circuit for modulating the wireless signal;

an amplification circuit coupled to the signal modulation circuit for amplifying the modulated wireless signal; and

a signal transmitting circuit coupled to the amplification circuit for transmitting the amplified wireless signal from the amplification circuit.

11. The computer system as claimed in claim 9, wherein the wireless signal receiver comprises:

a wireless signal receiver circuit connected to an antenna for receiving the wireless signal transmitted by the wireless audio signal transmitter module;

a filtering and amplification circuit coupled to the wireless signal receiver circuit for filtering and amplifying the received signal of the wireless signal receiver circuit;

a signal demodulation circuit coupled to the filtering and amplification circuit for modulating the amplified signal of the filtering and amplification circuit and providing a modulated signal; and

a microphone coupled to the signal demodulation circuit for receiving the modulated signal of the signal demodulation circuit.

12. The computer system as claimed in claim 9, wherein each of the wireless signal receivers comprises a power source comprised of a battery.