Title:
RADIO CONTROL TRANSMITTER
Document Type and Number:
Japanese Patent JP3211599
Kind Code:
B2
Abstract:
PURPOSE: To discriminate a class of a mounted high frequency module without provision of exclusive terminals.
CONSTITUTION: Part of a high frequency signal sent from a high frequency module 2 is detected and outputted to an RF output detection line 3. A voltage level of the line 3 is detected by a CPU 10 of a transmitter main body 1. When the CPU 10 detects an RF output nearly at the same time when power is applied, the high frequency module is discriminated to be a crystal high frequency module. When the CPU 10 detects the RF output after elapse of a prescribed time from application of power, it is discriminated to be a PLL high frequency module. The RF output detection line 3 is a line having been provided in conventional transmitters to detect the RF output.
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Inventors:
Susumu Sakuma
Masahiro Tanaka
Masahiro Tanaka
Application Number:
JP33540894A
Publication Date:
September 25, 2001
Filing Date:
December 22, 1994
Export Citation:
Assignee:
Futaba Electronics Co., Ltd.
International Classes:
A63H30/04; H04Q9/00; H04Q9/14; (IPC1-7): H04Q9/00; A63H30/04
Domestic Patent References:
| JP631232U |
Attorney, Agent or Firm:
Atsuo Waki (1 person outside)