Wireless microphone

• US 6,678,536 B2
• Filed: 12/07/2000
• Issued: 01/13/2004
• Est. Priority Date: 12/07/2000
• Status: Expired due to Fees

• Current Assignee: Jonathan Airey, Mark Wendell Fletcher
• Original Assignee: Jonathan Airey, Mark Wendell Fletcher
• Inventors: Fletcher, Mark Wendell, Airey, Jonathan
• Primary Examiner(s): Vo, Nguyen T.
• Assistant Examiner(s): Trinh, Sonny
• Application Number:
  US09/731,202
• Publication Number:
  US 20020072398A1
• Time in Patent Office: 1,132 Days
• Field of Search: 455/569, 455/90, 455/60, 455/425, 455/550, 455/345, 455/575, 455/573, 359/143, 359/152, 359/153, 359/154, 359/109, 359/113, 381/26, 381/28, 381/91, 381/92, 381/111, 381/122, 381/375, 381/376
• US Class Current: 455/569.1
• CPC Class Codes: H04M 1/6091 including a wireless interface

Abstract

A wireless microphone has a base unit connectable to a transmitting/receiving unit adapted to at least transmit signals to another party, a head unit spaced from the base unit and receiving signals from a user, a unit for transmitting signals between the head unit and the base unit with infrared radiation.

Claims

1. A wireless microphone, comprising a base unit connectable to a transmitting/receiving unit adapted to at least transmit signals to another party;

a head unit receiving signals from a user; and

means for transmitting signals from said head unit to base unit with infrared radiation, said transmitting means include an infrared transmitter provided in said head unit and transmitting signals received from the user, and an infrared receiver provided in said base unit and receiving the signals transmitted from said head unit, said base unit has an input microphone member through which signals from the user are introduced into said base unit, each of said units including a signal amplification block, a codec and filtering block connected with said signal amplification block, and a microcontroller block connected with said codec and filtering block, each of said blocks includes an infrared element selected from the group consisting of an infrared transmitter and an infrared receiver, said infrared element being connected with said microcontroller.

2. A wireless microphone as defined in claim 1, wherein each of said blocks includes an inverter block which inverts 5V power supply to −

5V to be supplied to said signal amplification block and to said codec block.

3. A wireless microphone as defined in claim 1;

and further comprising means for connecting said units with one another and including a first connector provided in said base unit and second connector provided in said head unit and connectable with and disconnectable from one another.

4. A wireless microphone, comprising a base unit connectable to a transmitting/receiving unit adapted to at least transmit signals to another party;

a head unit receiving signals from a user; and

means for transmitting signals from said head unit to base unit with infrared radiation, said transmitting means include a first infrared transceiver provided in said head unit and a second infrared transceiver provided in said base unit, so that signals can be transmitted from said base unit to said head unit and from said head unit to said base unit through said infrared transceivers with infrared radiation, said head unit has an input microphone member through which signals from the user are introduced into said head unit and transmitted to said base unit through said infrared transceivers, and also a speaker which receives signals transmitted from said base unit to said head unit through said infrared transceivers to be received by the user, each of said units including a signal amplification block, a codec and filtering block connected with said signal amplification block, and a microcontroller block connected with said codec and filtering block, each of said blocks includes I an infrared transceiver, said infrared transceiver being connected with said microcontroller.

5. A wireless microphone, comprising a base unit connectable to a transmitting/receiving unit adapted to at least transmit signals to another party;

a head unit receiving signals from a user; and

means for transmitting signals from said head unit to base unit with infrared radiation, and an auxiliary head unit connected with said base unit, said first mentioned head unit being connectable to said auxiliary head unit for recharging and wired communication between said head unit and said base unit.