The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 2007
Filed:
Feb. 18, 2003
Shiro Fujiki, Yokohama, JP;
Shiro Fujiki, Yokohama, JP;
Vertex Standard Co., Ltd., Tokyo, JP;
Abstract
When an emergency buttonof a radio communication apparatus has been turned ON and a transmit mode buttonhas been depressed, an MCUsets frequencies of a receiving sectionand a transmitting sectionto an emergency communication frequency. The MCUalso causes an indicator lampto illuminate or flash at peak intensity, and causes a burst sound to be supplied from a loudspeakerat the maximum volume. Then, the MCUcauses a built-in timer to measure a given time period while resetting the timer whenever a reception/transmission switching operation is performed or a communicating signal is detected. While the timer measures the time period, the MCUcauses the indicator lampto be turned off. When a timer expiration is detected, the MCUcauses the indicator lampto be turned on or flashed again.