CA1169948A - Electronic locking device - Google Patents
Electronic locking deviceInfo
- Publication number
- CA1169948A CA1169948A CA000381125A CA381125A CA1169948A CA 1169948 A CA1169948 A CA 1169948A CA 000381125 A CA000381125 A CA 000381125A CA 381125 A CA381125 A CA 381125A CA 1169948 A CA1169948 A CA 1169948A
- Authority
- CA
- Canada
- Prior art keywords
- codes
- intrinsic
- key
- unlocking
- input
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
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- Lock And Its Accessories (AREA)
Abstract
ABSTRACT OF THE INVENTION
An electronic locking device having a memory circuit for memorizing intrinsic codes and a digital watch to indicate variable codes with time.
The input-code for unlocking an object is given by calculation of the intrinsic figure and the variable figure. In the control unit, the variable figure is deducted from the input-code, and the remainder is identified if it is in agreement with the intrinsic figure. Unlocking is made only when the remainder agrees with the intrinsic figure.
An electronic locking device having a memory circuit for memorizing intrinsic codes and a digital watch to indicate variable codes with time.
The input-code for unlocking an object is given by calculation of the intrinsic figure and the variable figure. In the control unit, the variable figure is deducted from the input-code, and the remainder is identified if it is in agreement with the intrinsic figure. Unlocking is made only when the remainder agrees with the intrinsic figure.
Description
The present in~ention relates to an a~paratus for keepin~ the operation of an electronic locking deyice, which puts an article into locked or unlocked condition ~y an external key input of coded symbols, highly condifential.
Co~pared with mechanical locks for the doors of buildings, for example, elect~onic locks are generally free ~ro~ such.problems as the necessity of carrying the key at all times and possifile theft by the use of a duplicate pass key, and haye a higher confidential operation than that of tumbler keys of safes, and therefore, are used not only for the doors of fiuildings ~ut also for the doors of safes, automobiles and suit cases.
With conventional types of electronic locks, however, the input key used is always fixed, and therefore, several speci~-c key ~uttons of the fixed code become hand-stained. As suc~ unlockinq ~ecomes possi~le by a third person ~ he pushes the hand-stained buttons merely changing the
Co~pared with mechanical locks for the doors of buildings, for example, elect~onic locks are generally free ~ro~ such.problems as the necessity of carrying the key at all times and possifile theft by the use of a duplicate pass key, and haye a higher confidential operation than that of tumbler keys of safes, and therefore, are used not only for the doors of fiuildings ~ut also for the doors of safes, automobiles and suit cases.
With conventional types of electronic locks, however, the input key used is always fixed, and therefore, several speci~-c key ~uttons of the fixed code become hand-stained. As suc~ unlockinq ~ecomes possi~le by a third person ~ he pushes the hand-stained buttons merely changing the
2~ pushing order i~n various ways~ To prevent this, the push buttons have always to ~e kept clean so as the specific key may not ~e identified fiut usually thus is rather inconvenient, ~: ~ and hand-stain~ng of key ~uttons is a disadvantage for con~
; fidential preservation of electronic locks.
~:; 25 :~ The present invention improves the confidential ~:~; operation of electronic locking devices.
According to the present inYention there is pro-~: 30 ~ vided an electronic lock~ng dey~ce comprising a computer control un~t for lockin~ and unlocking b~ means. of memory of c~ded sym~uls suppIied from outside and hy processing : : the coded sym~.ols-~ a memory ci~cuit ~or storin~ intrinsic coded symbols~ an indicator ~ar indicatin~ var;able codes yary~ng with time.~ ~nd ~ motox:drivin~ circuit wherei.n com-posite. codes consisting of the intrinsic codes s~m~ols and : ~ : the varia~le codes supplied from outside are processed in , ., :
:
the eom~uteX eontrol unit so as to auto~atieall~ subtraets~id var`iable eodes ~ro~ said eo~posite codes th.ereby re~
~enexatin~ sa~d intrinsie eoded s~bols ~ed to the ~otoX
drivin~ circuit for unloekin~ the device.
~: 25 :
, : : 35 ' :
:
.
.
Referring now to the accompanying drawings, an embodi-ment of this invention is described as follows:-Fi~. 1 is a perspective view of a suit case provided with an electronic locking device according to an embodimentof this invention; and Fig. 2 is a block diagram showing the configuration of the electronic locking device according to this invention.
Referring to Fig. 1, which is a perspective view of a suit case provided with an electronic locking device according to this invention, twelve square buttons 3, shown at the right side of the tumbler 2, are arranged on the upper side plate lH of the suit case 1, which are composed o~ ten keys ( ~ ~ ) for code input, one switch key (S) and one unlocking key (U). The control unit of the micro-computer 10 for memor-izing, comparison and computation of key input is provided in the case 1 near the ten-key 3. The manual knobs 4A, 4B
for open-shut operation of the suit case are provided at both ends on the upper side plate lH, and under the locked condi-tion of the suit case, these manual knobs are depressed to the level of the upper side plate lH, as shown by the continu-ous lines, which are pulled by the solenoids as the control units of the locking device provided inside the case 1. When the suit case 1 is put into its unlocked condition, the manual knobs 4A, 4B are pushed .
~ 4 ~
up by~several mm as shown by the dotted lines, and then by sliding the knobs in arro~ directions (a), (b) respectively at the same -time, the lid 5 of the suit case can be opened.
The indicator 6 to show the variable component of the code symbols, i.e. the figures that change as time goes, is a digital ~Jatch, which indicates a time in hour~minute unit like "P~l 12:04" for instance by crystalline liquid letters, and can be adjusted by the digital watch adjusters 7.
~ ig. 2 is a block diagram to show the circuit configuration of the electronic locking device according to this invention. The po~er switch (S) among the key buttons 3 is for Ol``T/OFF operation of the power source 9 for the electronic locking device (DC 6V incorporated battery, for example3. ~he control unit 10 of the micro-computer has -the control circuit 13, the memory 14, the relational operation circuit 15 and the clock pulse generating circuit 16 The memory 14 no~ only memorizes the ~reset coded symbols, but also memorizes the changing indication of the digital watch 6 every moment and renews the memory. l'he input figure for unlocking is composed :: ~
of t~o components: the figure indicated in the digital watch 6 and the figure ~reset in the memory 14.
~he indicated figure that changes as time goes is the variable component (Xt) of the input coded symbols.
~he preset figure memorized in the memory 14 is the ~ 3 ;
: . : .. -.~..... .
- \
fixed intrlnsic com~onent (Y.f) of the input coded s~rmbols. If the fi~ed intrinsic component is "1234~, :for exarnple, -the time indication (Xt-1204) is added to this (Xf=12~1), i.e. Xf ~ Xt = 2438 as the key-input for unlocking. To prevent the said indicated figure "1204" :Erom advancing to "120~" during the key-input in this ca~e, the mcmory 1~ holcls the indicated figure :Erom the initial input "2" of the above 'l2438" to the cnd of the relational operation in the computation circuit 15 I3y the key-input of this coded s~Jmbols (X:F+Xt), the control unit 1() deduc-ts the said (Xt=1204) to ~udge iI the remainder (ax= 1234) is in agreernent with the memorized intrinsic co~ponent (Xf=12~4).
As the order of operation for locking of the suit case, the switch key (S) is turned to Ol~J and the case lid 5 is closed, then the electronic locking device functions to lock` the case and the knobs 4A, 4B are depressed as illustrated. To open the suit case9`
the s litch key (S) is turned to ON, and an operator addes up the~time indication (Xt=1204) on the digital Yatch 6 and l;he prese-t figure memorized in the control unit (X:~=1234) by mental calculation, then gives the total "2438" as the input code~ by the ten-key ( ~ )o hen the fixed :Eigure memorlzed in the control uni-t 10 w~lich is u-tilized as: the base of the input code at this~ key-input is correct, ~X becomes equal ~o .
:
~ .
:
:' ~
: :.
: ~ . ~, ... .. -'l il XI, and the coincidence signal (Ss) is sent ~rom tlle control unit 10 to the small sized loudspeaker 11 in the suit case to issue continuous sound. ~fter checking this sound~ the operator pushes the unloc]cing key ~U), then the unloclcing signal (Su) is given as the output from the control unit 10 to thc motor driving control circuit 12 No~ the motor driving control circuit 12 applies the voltagc of the power source 9 to the solenoids 8A, 8B for operati.on, thus -the Icnobs 4~ are released l'he manual knobs 4.t~, 4~ are pushed up by scveral mm above the u~per sicle pla-te 1:~1 a.s dcscribed above, and after t,hat, the opera-tor slides off the knobs -to respective side, tnen the suit case opens.
Descr.ibed above are on an embodiment of this invention as belng applied to a suit case, but the application is not limited to suit cases, as a matter of course. In place of the digital watch as the means to indicate the varying figure that changes as time goes and composes the coded symbols for key-input, a digital countcr that counts the cloc~ pulse of the control unit 10 may also be used.
ein6 composed as describcd above, this invention olfers a convenient loclcin~ device that can maintain confidence of the coded syD1bols s-trictly almost permanen-tly because the disadv'~nta~e of conventional .
~electronic locking device in lo~erd confidential .
:
"
performance dve to hand-stain of some specific key buttons used for the code symbol is now solved by the composi-te code arrangement of the variable figure and the fixed figu:re making the frequency of use a~proxirnately equal to all the ke-~ buttons and avoiding hand stain of any specif`ic buttons completely, and because it can eliminate such trouble as impossible unlocking due to forgo-t-ten coded symbols as the fixed intrinsic figure to be mer'lorized can now be a simple one easy to memorize.
:
~: :
: '~ :: :
. . . ~ . ,, . ~
~- ~
'
; fidential preservation of electronic locks.
~:; 25 :~ The present invention improves the confidential ~:~; operation of electronic locking devices.
According to the present inYention there is pro-~: 30 ~ vided an electronic lock~ng dey~ce comprising a computer control un~t for lockin~ and unlocking b~ means. of memory of c~ded sym~uls suppIied from outside and hy processing : : the coded sym~.ols-~ a memory ci~cuit ~or storin~ intrinsic coded symbols~ an indicator ~ar indicatin~ var;able codes yary~ng with time.~ ~nd ~ motox:drivin~ circuit wherei.n com-posite. codes consisting of the intrinsic codes s~m~ols and : ~ : the varia~le codes supplied from outside are processed in , ., :
:
the eom~uteX eontrol unit so as to auto~atieall~ subtraets~id var`iable eodes ~ro~ said eo~posite codes th.ereby re~
~enexatin~ sa~d intrinsie eoded s~bols ~ed to the ~otoX
drivin~ circuit for unloekin~ the device.
~: 25 :
, : : 35 ' :
:
.
.
Referring now to the accompanying drawings, an embodi-ment of this invention is described as follows:-Fi~. 1 is a perspective view of a suit case provided with an electronic locking device according to an embodimentof this invention; and Fig. 2 is a block diagram showing the configuration of the electronic locking device according to this invention.
Referring to Fig. 1, which is a perspective view of a suit case provided with an electronic locking device according to this invention, twelve square buttons 3, shown at the right side of the tumbler 2, are arranged on the upper side plate lH of the suit case 1, which are composed o~ ten keys ( ~ ~ ) for code input, one switch key (S) and one unlocking key (U). The control unit of the micro-computer 10 for memor-izing, comparison and computation of key input is provided in the case 1 near the ten-key 3. The manual knobs 4A, 4B
for open-shut operation of the suit case are provided at both ends on the upper side plate lH, and under the locked condi-tion of the suit case, these manual knobs are depressed to the level of the upper side plate lH, as shown by the continu-ous lines, which are pulled by the solenoids as the control units of the locking device provided inside the case 1. When the suit case 1 is put into its unlocked condition, the manual knobs 4A, 4B are pushed .
~ 4 ~
up by~several mm as shown by the dotted lines, and then by sliding the knobs in arro~ directions (a), (b) respectively at the same -time, the lid 5 of the suit case can be opened.
The indicator 6 to show the variable component of the code symbols, i.e. the figures that change as time goes, is a digital ~Jatch, which indicates a time in hour~minute unit like "P~l 12:04" for instance by crystalline liquid letters, and can be adjusted by the digital watch adjusters 7.
~ ig. 2 is a block diagram to show the circuit configuration of the electronic locking device according to this invention. The po~er switch (S) among the key buttons 3 is for Ol``T/OFF operation of the power source 9 for the electronic locking device (DC 6V incorporated battery, for example3. ~he control unit 10 of the micro-computer has -the control circuit 13, the memory 14, the relational operation circuit 15 and the clock pulse generating circuit 16 The memory 14 no~ only memorizes the ~reset coded symbols, but also memorizes the changing indication of the digital watch 6 every moment and renews the memory. l'he input figure for unlocking is composed :: ~
of t~o components: the figure indicated in the digital watch 6 and the figure ~reset in the memory 14.
~he indicated figure that changes as time goes is the variable component (Xt) of the input coded symbols.
~he preset figure memorized in the memory 14 is the ~ 3 ;
: . : .. -.~..... .
- \
fixed intrlnsic com~onent (Y.f) of the input coded s~rmbols. If the fi~ed intrinsic component is "1234~, :for exarnple, -the time indication (Xt-1204) is added to this (Xf=12~1), i.e. Xf ~ Xt = 2438 as the key-input for unlocking. To prevent the said indicated figure "1204" :Erom advancing to "120~" during the key-input in this ca~e, the mcmory 1~ holcls the indicated figure :Erom the initial input "2" of the above 'l2438" to the cnd of the relational operation in the computation circuit 15 I3y the key-input of this coded s~Jmbols (X:F+Xt), the control unit 1() deduc-ts the said (Xt=1204) to ~udge iI the remainder (ax= 1234) is in agreernent with the memorized intrinsic co~ponent (Xf=12~4).
As the order of operation for locking of the suit case, the switch key (S) is turned to Ol~J and the case lid 5 is closed, then the electronic locking device functions to lock` the case and the knobs 4A, 4B are depressed as illustrated. To open the suit case9`
the s litch key (S) is turned to ON, and an operator addes up the~time indication (Xt=1204) on the digital Yatch 6 and l;he prese-t figure memorized in the control unit (X:~=1234) by mental calculation, then gives the total "2438" as the input code~ by the ten-key ( ~ )o hen the fixed :Eigure memorlzed in the control uni-t 10 w~lich is u-tilized as: the base of the input code at this~ key-input is correct, ~X becomes equal ~o .
:
~ .
:
:' ~
: :.
: ~ . ~, ... .. -'l il XI, and the coincidence signal (Ss) is sent ~rom tlle control unit 10 to the small sized loudspeaker 11 in the suit case to issue continuous sound. ~fter checking this sound~ the operator pushes the unloc]cing key ~U), then the unloclcing signal (Su) is given as the output from the control unit 10 to thc motor driving control circuit 12 No~ the motor driving control circuit 12 applies the voltagc of the power source 9 to the solenoids 8A, 8B for operati.on, thus -the Icnobs 4~ are released l'he manual knobs 4.t~, 4~ are pushed up by scveral mm above the u~per sicle pla-te 1:~1 a.s dcscribed above, and after t,hat, the opera-tor slides off the knobs -to respective side, tnen the suit case opens.
Descr.ibed above are on an embodiment of this invention as belng applied to a suit case, but the application is not limited to suit cases, as a matter of course. In place of the digital watch as the means to indicate the varying figure that changes as time goes and composes the coded symbols for key-input, a digital countcr that counts the cloc~ pulse of the control unit 10 may also be used.
ein6 composed as describcd above, this invention olfers a convenient loclcin~ device that can maintain confidence of the coded syD1bols s-trictly almost permanen-tly because the disadv'~nta~e of conventional .
~electronic locking device in lo~erd confidential .
:
"
performance dve to hand-stain of some specific key buttons used for the code symbol is now solved by the composi-te code arrangement of the variable figure and the fixed figu:re making the frequency of use a~proxirnately equal to all the ke-~ buttons and avoiding hand stain of any specif`ic buttons completely, and because it can eliminate such trouble as impossible unlocking due to forgo-t-ten coded symbols as the fixed intrinsic figure to be mer'lorized can now be a simple one easy to memorize.
:
~: :
: '~ :: :
. . . ~ . ,, . ~
~- ~
'
Claims (3)
1. An electronic locking device comprising a computer control unit for locking and unlocking by means of memory of coded symbols supplied from outside and by pro-cessing the coded symbols, a memory circuit for storing intrinsic coded symbols, an indicator for indicating variable codes varying with time, and a motor driving circuit wherein composite codes consisting of the intrinsic codes symbols and the variable codes supplied from outside are processed in the computer control unit so as to automatically subtract said variable codes from said composite codes thereby re-generating said intrinsic coded symbols fed to the motor driving circuit for unlocking the device.
2. A device according to claim 1, wherein the indicator comprises a digital watch.
3. A device according to claim 1, wherein the indicator comprises a digital counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000381125A CA1169948A (en) | 1981-07-06 | 1981-07-06 | Electronic locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000381125A CA1169948A (en) | 1981-07-06 | 1981-07-06 | Electronic locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1169948A true CA1169948A (en) | 1984-06-26 |
Family
ID=4120362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000381125A Expired CA1169948A (en) | 1981-07-06 | 1981-07-06 | Electronic locking device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1169948A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4812841A (en) * | 1987-05-26 | 1989-03-14 | Chen Hai C | Computer-controlled password lock |
| US5107258A (en) * | 1986-04-22 | 1992-04-21 | Rene Soum | Wireless remote control high security system permitting the opening or theft-proof closing of relays actuating systems such as locks |
| US5507161A (en) * | 1992-12-22 | 1996-04-16 | Samsonite Corporation | Device for locking a closure mechanism for luggage |
-
1981
- 1981-07-06 CA CA000381125A patent/CA1169948A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107258A (en) * | 1986-04-22 | 1992-04-21 | Rene Soum | Wireless remote control high security system permitting the opening or theft-proof closing of relays actuating systems such as locks |
| US4812841A (en) * | 1987-05-26 | 1989-03-14 | Chen Hai C | Computer-controlled password lock |
| US5507161A (en) * | 1992-12-22 | 1996-04-16 | Samsonite Corporation | Device for locking a closure mechanism for luggage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |