Telephone transmitter and receiver

• US 3,919,491 A
• Filed: 09/12/1973
• Issued: 11/11/1975
• Est. Priority Date: 09/12/1973
• Status: Expired due to Term

• Current Assignee: Curtis L. Luce
• Original Assignee: Curtis L. Luce
• Inventors: Luce, Curtis L.
• Primary Examiner(s): Claffy, Kathleen H.
• Assistant Examiner(s): Brigance, Gerald L.
• Application Number:
  US05/396,388
• Time in Patent Office: 790 Days
• Field of Search: 179/41A 325/16,64,55,51
• US Class Current: 455/74.1
• CPC Class Codes: H04M 1/2155 Acoustic coupling
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724

Abstract

An extension is provided for a usual telephone having a base with a cradle and a handset cradlably and removably mountable thereon. The extension has a base station cradlable on the telephone base cradle and it has a transmitter which receives sound from the telephone handset ear piece and transmits same, and it also has a receiver to transmit sound to the telephone handset mouth piece. A portable station has in one end portion a transmitter to receive sound and transmit same to the receiver of the base station, and in the other end portion it has a receiver to receive sound from the transmitter of the base station. A portable station is removably mountable with the telephone and it can be hand used by a person with the transmitter thereof in close proximity to the mouth while the receiver thereof is in close proximity of the ear of the user. Another extension is provided having a base station in a usual telephone base and a portable station in a usual handset. The handset having the portable station is removably connectable with the telephone base.

Claims

1. In a telephone having a base with a cradle and a handset removably mountable on the cradle thereof, a telephone extension comprising:

a. a base station in the telephone base, said base station coupled to the telephone line and having a receiver to receive sound communication from the telephone handset and sEnd it as outgoing speech signals on the line, and a transmitter to transmit incoming speech signals from the line to the telephone handset, b. a portable station in the handset having a transmitter to transmit sound communication from the handset microphone to said base station receiver, and having a receiver to receive said incoming speech signals from said base station transmitter and relay them to the handset speaker, c. said handset being physically connectable with the telephone base by a removable plug, said handset to be normally used as a usual telephone handset when said plug is connected to said telephone base, said plug, upon removal from said base, activating said base station and portable station transmitters and receivers to allow remote communication between handset and base.