Noise-suppressing receiver

• US 20030138111A1
• Filed: 12/09/2002
• Published: 07/24/2003
• Est. Priority Date: 06/09/2000
• Status: Active Grant

• Current Assignee: Ziyi Cheng
• Original Assignee: Ziyi Cheng
• Inventors: Cheng, Ziyi
• Granted Patent: US 7,227,957 B2
• Time in Patent Office: Days
• US Class Current: 381/71.7
• CPC Class Codes: H04R 1/00 Details of transducers, loudspeakers or microphones

Abstract

A noise-suppressing receiver is provided. A noise pick-up and a receiver are fixed within a cylinder-like body. An insulation layer is set between the noise pick-up and the receiver. The insulation layer divides the cylinder-like body into a receiver module and a noise-collecting module. A reticulate cover is provided at an end of the cylinder-like body, and a front cap is provided on the other end. A circuit device is added onto the inner side of the front cap described above. The invention has the stronger capability of attenuating environmental noise and the good effect of suppressing noise, because of its unique structure and the corresponding circuit device.

Claims

1. A noise-suppressing receiver comprising a receiver in the receiver module, characterized in that there is also a noise-collecting module in the receiver module, and an environmental noise pickup and a noise-canceling pickup are set in the noise-collecting module.

2. A noise-suppressing receiver according to claim 1, characterized in that the said receiver module and the said noise-collecting module share the same shell, and the main body of the shell is a cylinder, in which a partition layer is set to divide the cylinder into the receiver module and the noise-collecting module.

3. A noise-suppressing receiver according to claim 1 or 2, characterized in that the environmental noise pickup is set in the said noise-collecting module.

4. A noise-suppressing receiver according to claim 1 or 2, characterized in that an end of a noise pickup is fixed on the said cylinder, and a front cover is provided, and that a noise-collecting cavity inlet is set on the sidewall of the cylinder corresponding to the place the noise-collecting cavity located.

5. A noise-suppressing receiver according to claim 1 or 2, characterized in that a plurality of noise pickups and/or noise-canceling pickups are set in the said noise pickup module, a pickup partition layer is set between the two adjacent noise pickups individually to divide the cylinder into a number of noise-collecting chambers, and that an inlet of the noise-collecting chamber is set respectively on the sidewall of the cylinder corresponding to the place the individual noise-collecting cavity located.

6. A noise-suppressing receiver according to claim 5, characterized in that a pair of noise pickups are set in the same noise-collecting chamber.

7. A noise-suppressing receiver according to claim 1, characterized in that it includes circuit elements.

8. A noise-suppressing receiver according to claim 7, characterized in that the said circuit elements are any circuit or the combination of the circuits such as a print circuit board, a working circuit, an infrared receiving-transmitting device, a sound volume controller and a battery, a working circuit and/or an infrared receiving-transmitting device are set on the print circuit board, the working circuit is communicated with the external circuit via a lead wire, and the infrared receiving-transmitting device is communicated with the external circuit via an antenna, the sound volume controller is connected with the working circuit to control the sound volume of said open-style active noise-suppressing receiver, the working circuit and the infrared receiving-transmitting device are powered by the battery.

9. A noise-suppressing receiver according to claim 8, characterized in that said working circuit includes an common-mode rejection circuit and any circuit or the combination of the circuits such as an amplitude compensation circuit, a phase shifter circuit, a time delay circuit and a frequency compensation circuit.

10. A noise-suppressing receiver according to any of the claim 1, 2 or claim 7 to 9, characterized in that an end of the receiver is fixed on said cylinder.