Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DEVICE TO TAKE IN MULTI-KIND OUTPUT SIGNAL
Document Type and Number:
Japanese Patent JPH0677860
Kind Code:
A
Abstract:

PURPOSE: To take in any type of an output signal of an electronic device to be connected without confirming the type even when the output signal is an AC signal, a DC signal or a no-voltage contact.

CONSTITUTION: The take-in device 1 is made up of a couple of input terminals 2a, 2b receiving an AC signal, a DC signal or a no-voltage contact such as a big hit output signal of a pachinko board, a 1st rectifier 3 connecting to the input terminals 2a, 2b, a very small AC signal generator 4 connecting to the input terminal 2a, a filter 6 connecting to another input terminal 2b and passing only a very weak AC signal, an amplifier 8 connecting to the filter 6, a 2nd rectifier 9 connecting to the amplifier 8, and a photocoupler 10 processing output signals from the 1st rectifier 3 and the 2nd rectifier 9 in parallel and outputting a no-voltage open collector output.


Inventors:
YUASA KAORU
Application Number:
JP25396392A
Publication Date:
March 18, 1994
Filing Date:
August 28, 1992
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MICRO DENSHI SYST KK
International Classes:
H04B3/54; H04B3/02; (IPC1-7): H04B3/54
Attorney, Agent or Firm:
Matsubara etc.