IT1133817B - Memory device for security patrol - Google Patents

Memory device for security patrol

Info

Publication number
IT1133817B
IT1133817B IT24600/80A IT2460080A IT1133817B IT 1133817 B IT1133817 B IT 1133817B IT 24600/80 A IT24600/80 A IT 24600/80A IT 2460080 A IT2460080 A IT 2460080A IT 1133817 B IT1133817 B IT 1133817B
Authority
IT
Italy
Prior art keywords
coder
magnets
coil
memory device
patrol
Prior art date
Application number
IT24600/80A
Other languages
Italian (it)
Other versions
IT8024600A0 (en
Inventor
Stanley Nance Kivell
Original Assignee
Nance Kivell S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nance Kivell S filed Critical Nance Kivell S
Priority to IT24600/80A priority Critical patent/IT1133817B/en
Publication of IT8024600A0 publication Critical patent/IT8024600A0/en
Application granted granted Critical
Publication of IT1133817B publication Critical patent/IT1133817B/en

Links

Landscapes

  • Alarm Systems (AREA)

Abstract

The security device using a memory can be used by a patrol man during a tour of inspection of several locations. A member (10) at each location, and acting as a coder, incorporates a set of three magnets(14a,b,d) selected from four alternative positions, and corresponding to a selected code number. A storage module (20) carried by the patrol man, carries four reed relays (24a-d) corresponding to the four positions. This is applied to the coder, so that the corresponding reed relays are operated by the three magnets. The information conveyed in this way is entered into the electronic memory (26) of the module and the data stored can be transferred by a coil (28) to the corresponding coil of a decoding device. The decoder can incorporate a visual indicator.
IT24600/80A 1980-09-11 1980-09-11 Memory device for security patrol IT1133817B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT24600/80A IT1133817B (en) 1980-09-11 1980-09-11 Memory device for security patrol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT24600/80A IT1133817B (en) 1980-09-11 1980-09-11 Memory device for security patrol

Publications (2)

Publication Number Publication Date
IT8024600A0 IT8024600A0 (en) 1980-09-11
IT1133817B true IT1133817B (en) 1986-07-24

Family

ID=11214129

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24600/80A IT1133817B (en) 1980-09-11 1980-09-11 Memory device for security patrol

Country Status (1)

Country Link
IT (1) IT1133817B (en)

Also Published As

Publication number Publication date
IT8024600A0 (en) 1980-09-11

Similar Documents

Publication Publication Date Title
DE3175093D1 (en) Method of reading bar code symbols on an object
SG51984G (en) A data processing method,a device for carrying out such data processing method,a data carrier produced by executing such data processing method,a decoder for use with such data processing method,and a device including such a decoder
GB2035014B (en) Cyclic redundancy data check encoding method and apparatus
ES504085A0 (en) METHOD FOR CORRECTING DATA ERRORS INCLUDING WORD IN A BLOCK
PT72613B (en) Bar code reader system
FR2549982B1 (en) COMPACT ELECTRONIC DEVICE IN THE FORM OF A CARD, SUCH AS AN ELECTRONIC CALCULATOR
FR2556032B1 (en) MAGNETIC CODE CLOSING DEVICE
GB2083669B (en) Key data entry system
JPS55131870A (en) Data storing method of electronic dictionary
GB2090031B (en) Electronic data storing apparatus
IT1133817B (en) Memory device for security patrol
FR2659768B1 (en) METHOD FOR CODING AND DECODING PREPAID MEMORY CARDS.
NO844486L (en) ELECTRONIC KEY OR CODE STORAGE MODULE.
JPS536855A (en) Digital protective relay inspection system
JPS579145A (en) Method and device for encoding and decoding binary data
JPS545416A (en) Data check system by crc
JPS56111947A (en) Decoding system of instruction code
JPS5361919A (en) Bar code reader
JPS52131081A (en) Nc data memory system in nc control unit
JPS53135532A (en) Decoding device
JPS5797778A (en) Id display system
JPS57162895A (en) Key code generating system
JPS5717062A (en) Parity checking system
JPS53124015A (en) Facsimile signal decoding device
DE2963093D1 (en) Cyclic redundancy data check encoding method and apparatus