Title:
RADIO COMMUNICATION EQUIPMENT WITH UNAUTHORIZED USE PREVENTIVE FUNCTION
Document Type and Number:
Japanese Patent JPH08162994
Kind Code:
A
Abstract:
PURPOSE: To make a radio communication equipment having a possibility of being used in an unauthorized manner lose the function as of the radio communication equipment by receiving the transmission signal from other radio communication equipment.
CONSTITUTION: When a reception code is detected from a reception signal by a reception code detection means 12, this reception code and a first code to be stored in a first code storage means 18 are compared in a first code comparison means 14. When the codes match, a first use inhibition means 22 destroys the partial or all the data for maintaining the function as a radio communication equipment to be stored in a control data storage means 24 or makes the data impossible to be read.
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Inventors:
SARAYA NOBUKI
Application Number:
JP32171494A
Publication Date:
June 21, 1996
Filing Date:
November 30, 1994
Export Citation:
Assignee:
ICOM INC
International Classes:
H04B1/3822; H04B1/40; H04L9/00; H04L9/10; H04L9/12; H04L9/32; (IPC1-7): H04B1/40; H04L9/00; H04L9/10; H04L9/12
Attorney, Agent or Firm:
Tetsuo Moriyama
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