04860336 is referenced by 95 patents and cites 11 patents.

A credit-card radiotelephone for a vehicle with a door includes a radio transceiver and a control unit with a telephone handset, credit card reader, hookswitch and door switch. The telephone handset has a microphone, a speaker, and a dial. The radio transceiver has a transmitter, a receiver, and a first microprocessor for electronically locking and unlocking the radio transceiver. The credit card reader reads a credit card number and produces an output indicating the read credit card number. The control unit also includes a second microprocessor coupled to the credit card reader for receiving the read credit card number and determining if the read credit card number is valid, coupled to the first microprocessor, hookswitch and the dial for electronically unlocking said transceiver and placing telephone calls when the read credit card number is determined to be valid, and coupled to the door switch for electronically locking said transceiver means when the door is opened.

Title
Radiotelephone credit card data communications
Application Number
57478
Publication Number
4860336
Application Date
January 15, 1988
Publication Date
August 22, 1989
Inventor
Francis P Tobolski Jr
Algonquin
IL, US
Daniel S Rokusek
Schaumburg
IL, US
Robert F D Avello
Hoffman Estates
IL, US
Agent
Rolland R Hackbart
Assignee
Motorola
IL, US
IPC
H01Q 7/04
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