Microphone

• US 4,679,233 A
• Filed: 08/30/1985
• Issued: 07/07/1987
• Est. Priority Date: 08/30/1985
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Richardson, Charles P., Kuhl, Virgil, Krieg, Larry M., Staple, Bruce, Gasparaitis, Bernard
• Primary Examiner(s): Rubinson, Gene Z.
• Assistant Examiner(s): Byrd, Danita R.
• Application Number:
  US06/771,097
• Time in Patent Office: 676 Days
• Field of Search: 179/102, 179/103, 179/121 R, 179/121 D, 179/146 R, 179/146 E, 179/179, 179/100 L, 179/184, 381/87, 381/88, 381/63, 381/64, 455/73, 455/77, 455/82, 455/83, 455/89, 455/90, 455/91, 455/95, 455/107, 455/120, 455/121, 343/701, 343/702, 343/720, 379/433, 379/451
• US Class Current: 379/433.02
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
• CPC Class Codes: H04B 2001/3894 Waterproofing of transmission device
• CPC Class Codes: H04R 1/021 incorporating only one transducer
• CPC Class Codes: H04R 1/086 Protective screens, e.g. all weather or wind screens

Abstract

This microphone includes a microphone element, speaker and antenna all internal to the microphone housing. These components are carried by a chassis that is fastened to the microphone body at its lower end which also provides the effective attachment point for the microphone cable. The speaker is mounted in the chassis at an angle having its face slight upwardly incline to project sound towards the top of the microphone. An antenna element includes walls on either side of the speaker for reflecting sound upwardly. The antenna element has apertures in its top portion to allow for the passage of sound therethrough. The microphone element is also in a position for picking up sound through the top of the microphone.

Claims

1. A speaker, antenna and microphone assembly comprising,

a housing having a top sound port,

a microphone element mounted within the housing,

a speaker means mounted within the housing, and

an antenna element mounted within the housing including a surface positioned in front of the speaker to reflect sounds from the speaker toward the top sound port.

2. A speaker, antenna and microphone assembly comprising,

a housing having a top sound port,

a microphone element mounted within the housing,

a speaker means mounted within the housing, and

an antenna element mounted within the housing and positioned to reflect sounds from the speaker toward the top sound port, the antenna element including a ground plane element having a front surface positioned in front of the speaker, a rear surface positioned behind the speaker and a top surface interconnecting said front and rear surface.

3. The assembly of claim 2, wherein the ground plane top surface includes a plurality of holes for passing sound.

4. The assembly of claim 3, wherein the microphone element is located below the ground plane top surface.

5. The assembly of claim 4, wherein a second antenna element is located within the housing above the ground plane top surface.

6. The assembly of claim 5, wherein the housing includes a grill assembly having a top grill and having means for preventing water from entering the housing through the top grill.

7. The assembly of claim 6, wherein said preventing means includes a pitched roof structure located below said top grill, said structure being covered with a membrane for passing sound while being water impermeable.

8. A speaker, antenna and microphone assembly comprising,

a housing having a top opening,

a chassis within said housing,

an antenna element carried by the chassis and having front and rear vertical walls,

a speaker mounted within said chassis at an angle from vertical,

wherein sound from said speaker is reflected through the housing top opening by one of said antenna walls.

9. The assembly of claim 8, wherein the antenna includes an upper wall interconnecting the front and rear walls, and including a plurality of openings for passing sound.

10. The assembly of claim 9, wherein a microphone element is located below the antenna top wall.

11. The assembly of claim 9, wherein the chassis includes a lower neck portion, the housing includes a lower opening receiving said neck portion, and fastening means engage the neck portion for fastening the chassis within the housing.

12. The assembly of claim 11, wherein the neck portion is threaded, and the fastening means includes a threaded nut for engaging the threaded neck portion.

13. The assembly of claim 12, wherein the threaded nut includes a second threaded portion, and

a cable connector is connected to the second threaded portion.

14. The assembly of claim 13, wherein the cable connector includes a threaded bushing threadably engaging the nut second threaded portion, the threaded bushing being constructed of resiliently flexible material so as to release its threaded connection when a predetermined force is applied along the axis of its threads.

15. The assembly of claim 14, wherein the threaded bushing comprises a continuous thread.