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. 15, 1998
Filed:
Jun. 28, 1996
Applicant:
Inventors:
Masahiro Tanaka, Mobara, JP;
Satoshi Inokoshi, Mobara, JP;
Assignee:
Futaba Denshi Kogyo K.K., Mobara, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
455115 ; 455119 ;
Abstract
An RF module for a radio control transmitter capable of detecting detaching of the RF module from a transmitter body while keeping the transmitter body turned on. The RF module includes a monitor circuit, which judges whether or not a modulation signal is outputted from the transmitter body within 1 second after the RF module is turned on and further judges, when it is judged that the modulation signal has been fed within 1 second, whether the modulation signal is a PCM signal or a PPM signal. When it is a PCM signal, an RV output is rendered 'on'; whereas when it is a PPM signal, the RF output is rendered 'off'.