Boots – shoes – and leggings
Patent
1985-10-16
1989-02-14
Gruber, Felix D.
Boots, shoes, and leggings
364466, 364900, G06F 1200
Patent
active
048051098
ABSTRACT:
A system for the nonvolatile storage of data, such as a postage meter system, includes a microcomputer coupled to an MNOS type nonvolatile memory and also coupled to an EEPROM type nonvolatile memory, each memory having address lines and data lines. The address lines and data lines of the two nonvolatile memories are coupled to microcomputer ports such that the MNOS memory data lines are always at a high value whenever the EEPROM memory is addressed for the purpose of either writing or reading.
The EEPROM nonvolatile memory control terminals and the MNOS nonvolatile memory control terminals are coupled to different ports of the microcomputer. Access to the MNOS nonvolatile memory is achieved by input/output mapping techniques. Access to the EEPROM nonvolatile memory is achieved by memory mapping techniques. In this way, protection is provided against inadvertently accessing the wrong memory or wrong address while executing read/write instructions to a selected memory.
REFERENCES:
patent: 3544777 (1970-12-01), Winkler
patent: 3668644 (1972-06-01), Looschen
patent: 3938095 (1976-02-01), Check, Jr. et al.
patent: 3942436 (1976-03-01), Lupkas
patent: 3978457 (1976-07-01), Check, Jr. et al.
patent: 4093999 (1978-06-01), Fuller et al.
patent: 4180856 (1979-12-01), Check, Jr. et al.
patent: 4251874 (1981-02-01), Check, Jr. et al.
patent: 4285050 (1981-08-01), Muller
patent: 4287825 (1981-09-01), Eckert, Jr. et al.
patent: 4301507 (1981-11-01), Soderberg et al.
patent: 4335434 (1982-06-01), Baumann et al.
patent: 4385308 (1983-05-01), Uchida
patent: 4408303 (1983-10-01), Guterman
patent: 4445198 (1983-04-01), Eckert
patent: 4484307 (1984-11-01), Quatse et al.
patent: 4564922 (1986-01-01), Muller
patent: 4566106 (1986-01-01), Check, Jr.
patent: 4627016 (1986-12-01), Kirschner et al.
Chang Sung S.
Kroll Paul C.
DeSha Michael J.
Gruber Felix D.
Pitchenik David E.
Pitney Bowes Inc.
Ramirez Ellis B.
LandOfFree
Nonvolatile memory protection arrangement for electronic postage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nonvolatile memory protection arrangement for electronic postage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonvolatile memory protection arrangement for electronic postage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1370962