Interconnection system for an electronic cash register
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 12, 1993
Grant Date -
N/A
app pub date -
Aug 7, 1990
filing date -
Aug 7, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for inputting signals to a terminal includes a first interface having an input port, the first interface including a decoder for decoding the signals received at said port for application to the terminal. Two external sources of signals are OR'ed to the same port. One or both the sources may include an external input device and an interface for translating signals from a first code output from the input device to a second code which the first interface is adapted to accept. In order to OR the outputs of the sources, the sources may have open collector output transistors connected to a common collector resistor in the first interface.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully