Hands free equipment

• US 5,642,402 A
• Filed: 01/11/1995
• Issued: 06/24/1997
• Est. Priority Date: 01/13/1994
• Status: Expired due to Term

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Mobile Phones UK Limited (Nokia Corporation)
• Inventors: Vilmi, Toivo, Leppanen, Aki
• Primary Examiner(s): Bost, Dwayne
• Assistant Examiner(s): TROST IV, WILLIAM GEORGE
• Application Number:
  US08/371,379
• Time in Patent Office: 895 Days
• Field of Search: 379/58, 379/59, 379/420, 379/432, 455/89, 455/90
• US Class Current: 455/569.2
• CPC Class Codes: H01R 2201/16 for telephony
• CPC Class Codes: H04B 1/3877 Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters
• CPC Class Codes: H04M 1/6075 adapted for handsfree use in a vehicle H04M1/6058 takes precedence; arrangements for holding telephones in a vehicle B60R11/0241

Abstract

Hands free equipment for mobile phones, has an extra loudspeaker and microphone and an electronic unit included therein, the equipment being mainly intended for use in cars, whereby driving safety is maintained. The equipment is connected to the charger of the cigarette lighter. The hands free equipment according to the invention consists of a separate, small-sized, detachable and movable unit situated outside the mobile phone.

Claims

1. Hands free equipment for use with a radio telephone comprising a lead for connecting the radio telephone to a cigarette lighter socket, the lead is detachably connectable to the telephone and the cigarette lighter socket and is provided with a loudspeaker and a microphone, the lead further comprises a first connector for connection to the cigarette lighter socket and a second connector for connection to the radio telephone, and wherein the second connector is provided with said microphone.

2. Hands free equipment as claimed in claim 1, wherein the first connector is provided with said loudspeaker.

3. Hands free equipment as claimed in claim 1, wherein the first connector comprises means for supplying power to the hands free equipment from the cigarette lighter socket.

4. Hands free equipment as claimed in claim 1, wherein the first connector is provided with charging circuitry for charging the radio telephone.

5. Hands free equipment as claimed in claim 1, wherein the first connector comprises amplifying means for the loudspeaker.

6. Hands free equipment as claimed in claim 5, wherein the power for the amplifying means is provided from the cigarette lighter socket.

7. Hands free equipment for radio telephones, comprising an extra loudspeaker and an extra microphone, the equipment having a use in cars, whereby driving safety is maintained, the equipment being connected to a charger adapted to be received with the socket of a cigarette lighter, characterized in that the hands free equipment consists of a separate, detachable unit situated outside the radio telephone and that the extra loudspeaker is situated in the charger of the cigarette lighter and that the equipment has a radio telephone engaging end in which the extra microphone is situated.