Interface between a processor system and peripheral devices used in a mailing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 18, 1983
Grant Date -
N/A
app pub date -
Feb 17, 1981
filing date -
Feb 17, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A peripheral interface board establishes a communications link between a postage value determining system processor associated with a postage scale and a plurality of peripheral devices. The interface includes a microcomputer which receives data and command signals from the system processor. A multiplexer interconnects the peripheral transmit line of the microcomputer with a selected peripheral device, while a further multiplexer interconnects the peripheral receive line of the microcomputer with the selected peripheral device. Typical mailing system peripheral devices include electronic postage meters, an electronic accounting system, a scale computer interface and a printer. In response to command signals from the system processor, the microcomputer establishes a communications link with a selected peripheral device. Communications subroutines include signal transmission and/or receipt, temporary storage of data received for communication to or from a peripheral device and communication with the system processor.
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