CN1118780C - Antitheft mechanism for electronic device with card slots - Google Patents
Antitheft mechanism for electronic device with card slots Download PDFInfo
- Publication number
- CN1118780C CN1118780C CN 99122008 CN99122008A CN1118780C CN 1118780 C CN1118780 C CN 1118780C CN 99122008 CN99122008 CN 99122008 CN 99122008 A CN99122008 A CN 99122008A CN 1118780 C CN1118780 C CN 1118780C
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- China
- Prior art keywords
- transmitter
- receiver
- emission
- floppy disk
- state
- 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 - Fee Related
Links
- 238000009434 installation Methods 0.000 claims description 26
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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- Burglar Alarm Systems (AREA)
Abstract
The present invention relates to a burglarproof mechanism for an electronic device with a card slot, which aims at an electronic device with a card slot. The burglarproof mechanism comprises a transmitter capable of transmitting radio signals and a receiver capable of receiving radio signals. When the present invention is in use, the transmitter is arranged in the card slot of the electronic device, and the receiver is carried by a user. When the user leaves the electronic device with the card slot at a certain distance, and the receiver can not receive the signals transmitted by the transmitter, an alarm of the receiver can remind the user.
Description
Technical field
The field of the invention is promptly at the designed alarm that goes out of the electronic installation with floppy disk.
Background technology
All there is not good mode to be prevented as the stolen of notebook computer always, so that loss by theft rate can be in any more (about 6%) always, e-dictionary for example again, digital camera and video camera etc. mostly have floppy disk or card casket, for example senior again general instrument of frequency and oscillograph etc. are also together, so one at high unit price of this kind and the little electronic installation of volume in light weight, be necessary to use alarm, yet existing alarm is not easy to be applied in the little electronic installation of volume in light weight, because alarm is difficult to invest on the compact electronic device with append mode, so design one and do not need to reequip electronic installation, when perhaps using very easily alarm be necessary.
Summary of the invention
Fundamental purpose of the present invention provides an alarm with electronic installation of floppy disk, this alarm, the user need not reequip the electronic installation with floppy disk, and the position that directly utilizes its floppy disk to place as the transmitter of alarm, make the distance of electronic installation with floppy disk and receiver exceed a certain apart from the time, alarm can be warned the user.
A further object of the present invention is removed when the transmitter of alarm, still antitheft function can be arranged.
Another purpose of the present invention is alarm to be set in the searching function, and when the distance of electronic installation with floppy disk and receiver during at a certain distance range, alarm can be notified the user.Alarm of the present invention is at the electronic installation with floppy disk, is the stolen usefulness of electronic installation that prevents to have floppy disk, it is characterized in that this alarm comprises:
One transmitter, the outside is a cassette shell, so that in the floppy disk of the electronic installation of insertion desire protection, comprise on its intermediate champing shell that an emission switch is to switch transmitter in the state of antitheft startup or power-off, comprise scrambler in the cassette shell in addition, the radio signals transmitter, the emission controlling unit of the circuit arrangement of emitting antenna and control foregoing circuit device, when transmitter during at the state that starts, one emission code is via after the encoder encodes, is launched with radio signals via emitting antenna by the radio signals transmitter again; And
One receiver, comprise demoder, radio signal receiver, receiving antenna, warning horn, the reception control module of the circuit arrangement of change-over switch and control foregoing circuit, wherein the changeable receiver of change-over switch is in the state of antitheft startup or power-off, and receiving antenna can receive extraneous radio signals and reach radio signal receiver and reach decoder decode again; Wherein when transmitter broke away from the floppy disk of electronic installation of desire protection, emission switch promptly was positioned at the state of power-off.Wherein transmitter also comprises an emission sequential circuit, with the number of times of control emission code time per unit emission.
Wherein change-over switch comprises that also the switching receiver is in the state of seeking, when transmitter is the state of antitheft startup, and receiver is when the state sought, if the emission code that transmitter is launched drapes over one's shoulders receiver and receives, and the warning horn of the receiver signal that gives the alarm then.
Can be hand and control at the emission switch of transmitter of the present invention by the user, also can be the automatic switch form, that is can start when transmitter inserts the floppy disk of electronic installation, otherwise when breaking away from floppy disk, emission switch promptly is positioned at the state of power-off; Certainly adopt simultaneously manually and automatic emission switch also can.
Because the present invention truly has the enhancement effect, so apply for patent of invention in accordance with the law.
Description of drawings
For further specifying structure of the present invention and feature, the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is the synoptic diagram of the present invention when using.
Fig. 2 is the enforcement illustration of the present invention about transmitter.
Fig. 3 is that the present invention implements illustration about the emission switch first of transmitter.
Fig. 4 is that the present invention implements illustration about the emission switch second of transmitter.
Fig. 5 is that the present invention implements illustration about the emission switch the 3rd of transmitter.
Fig. 6 is the partial enlarged drawing of Fig. 5 about emission switch.
Fig. 7 is the enforcement illustration of the present invention about receiver.
Fig. 8 is the circuit framework figure of the present invention about transmitter.
Fig. 9 is the circuit framework figure of the present invention about receiver.
Embodiment
Seeing also Fig. 1 is the synoptic diagram that the present invention uses.Alarm 10 of the present invention is at the electronic installation 90 with floppy disk, and present embodiment is to be example with notebook computer 91.But the alarm 10 with electronic installation of floppy disk comprises a transmitting radio signal transmitter 20, and a receiver 30 that can receive radio signals.In use, transmitter 20 is to insert in the floppy disk 92 of notebook computer 91, and user 95 then carries receiver 30, such as placing in the pocket 96.When user 95 and notebook computer 91 leave a certain apart from the time, receiver 30 is in the time can't receiving the signal that transmitter 20 launched, warning horn 35 (see figure 9)s of receiver 30 will be reminded user 95.
Below see also Fig. 2, Fig. 3 and Fig. 8 are to understand the structure and the function of transmitter 20.The outside of transmitter 20 is a cassette shell 25, so that in the floppy disk 92 of the electronic installation 90 of insertion desire protection.Comprise an emission switch 27 on its intermediate champing shell 25 to switch transmitter 20 in the state of antitheft startup (promptly starting power supply) or power-off, power supply is provided by battery (figure does not show) institute.Because the electronic installation with floppy disk 90 of present embodiment is to be example with notebook computer 91, so the big I of external form of transmitter 20 do as 3.5 cun magnetic sheet, and emission switch 27 can imitate the anti-push jack of writing of magnetic sheet, and on circuit board 201, establish a shell fragment 271, whether to contact Switching power by shell fragment 271 1 ends with circuit board 201 by the front and back start of emission switch 27.
Comprise scrambler 22 in the cassette shell 25, radio signals transmitter 23, the emission controlling unit 21 of the circuit arrangement of emitting antenna 24 and control foregoing circuit device.When transmitter 20 during at the state that starts, an emission code 29 is via behind scrambler 22 codings, is launched with radio signals via emitting antenna 24 by radio signals transmitter 23 again.In order to save power supply, transmitter 20 preferably more comprises an emission sequential circuit 28, with the number of times of control emission code 29 time per units emission.Emission controlling unit 21 can adopt as the microprocessor of simple type or by logical circuit and be constituted, because the known circuit event that is emitted as of control radio signals does not repeat them here.
Fig. 4 shows the second enforcement illustration of emission switch 27.Because when magnetic sheet type transmitter 26 inserts the floppy disk 92 of notebook computer 91, push jack 261 can move because of the start of soft disc player, utilize the conductive switch portion 202 on the push jack 261 contact circuit plates 201 to form conduction, this moment, push jack 261 should be coated with conductive material with the part of conductive material or contact conductive switch portion 202.It is then non-conductive when otherwise magnetic sheet type transmitter 26 is drawn out of.
Fig. 5, Fig. 6 show the 3rd embodiment synoptic diagram of emission switch 27.Emission switch 27 is a push switch 60, because when magnetic sheet type transmitter 26 inserts the floppy disk 92 of notebook computer 91, push switch 60 is pressed and conductive switch portion 202 on the contact circuit plate 201 forms conduction, and this moment, push switch 60 should be coated with conductive material with the part of conductive material or contact conductive switch portion 202.When otherwise magnetic sheet type transmitter 26 was drawn out of, push switch 60 rebounded non-conductive because of spring 61.
Even if the advantage of second and third embodiment of above emission switch 27 be the burglar earlier with transmitter 20 when floppy disk 92 is extracted out give receiver 30 because transmitter 20 stops to launch signal, this moment, receiver 30 can give the alarm immediately.Below see also Fig. 7 and 9 to understand the structure and the function of receiver 30.Receiver 30 mainly also is made of electronic circuit, comprises demoder 32, radio signal receiver 33, receiving antenna 34, warning horn 35, the reception control module 31 of the circuit arrangement of change-over switch 37 and control foregoing circuit.Wherein change-over switch 37 changeable receivers 30 are in the state of antitheft startup or power-off, and receiving antenna 34 can receive extraneous radio signals and reach radio signal receiver 33 and reach demoder 32 decodings again.The emission code 29 whether receiver 30 must affirmation be launched by relative transmitter 20 via demoder 32 decoding, when transmitter 20 and receiver 30 are all the state of antitheft startup, the emission code of launching when transmitter 20 29 can't be received machine 30 and receive, then the warning horn 35 of receiver 30 signal that gives the alarm.The alarm signal is to decide on the function of warning horn 35, is a buzzer as warning horn 35, and then the alarm signal is the sound, but if warning horn 35 has electromagnetic shaker, the alarm signal is with vibration reminding user 95.
Sometimes user 95 forgets where its notebook computer 91 is positioned in addition, or notebook computer 91 stolen after, and user's 95 desires are sought notebook computer 91.For increasing this function, change-over switch 37 can more comprise switches receiver 30 in the state of seeking, when transmitter 20 is the state of antitheft startup, and receiver 30 is when the state sought, if the emission code 29 that transmitter 20 is launched is received machine 30 and receives, the warning horn 35 of receiver 30 signal that gives the alarm then makes change-over switch 37 changeable receivers 30 in three kinds of states: antitheft starting state, searching state and power down state.
For making things convenient for user 95 to carry receiver 30, suggestion can be adopted the pen clip type receiver 50 as Fig. 7, can conveniently be sandwiched in pocket 96.
Institute is old on vertical, and no matter the present invention is with regard to purpose, and means and effect are showing that it is totally different in the feature of known techniques, because the present invention truly has the enhancement effect, so apply for patent of invention in accordance with the law.Being noted that above-mentioned is embodiment only, but not is limited to embodiment, such as the shape of transmitter of the present invention difference can being arranged, mainly is to cooperate the floppy disk of electronic installation and design, and for example can be the business card type, memory card type or IC-card type etc.In addition, the emphasis of second and third embodiment of emission switch of the present invention has or not the floppy disk that inserts electronic installation to produce the automatic switch form for complying with, but should be not limited to specific position and special entity.The also non-emphasis of the present invention of the shape of receiver and for example.So do not break away from basic framework person of the present invention, all should be the interest field that this patent is advocated, and should be as the criterion with patent claim.
Claims (3)
1. the alarm with electronic installation of floppy disk is the stolen usefulness of electronic installation that prevents to have floppy disk, it is characterized in that this alarm comprises:
One transmitter, the outside is a cassette shell, so that in the floppy disk of the electronic installation of insertion desire protection, comprise on its intermediate champing shell that an emission switch is to switch transmitter in the state of antitheft startup or power-off, comprise scrambler in the cassette shell in addition, the radio signals transmitter, the emission controlling unit of the circuit arrangement of emitting antenna and control foregoing circuit device, when transmitter during at the state that starts, one emission code is via after the encoder encodes, is launched with radio signals via emitting antenna by the radio signals transmitter again; And
One receiver, comprise demoder, radio signal receiver, receiving antenna, warning horn, the reception control module of the circuit arrangement of change-over switch and control foregoing circuit, wherein the changeable receiver of change-over switch is in the state of antitheft startup or power-off, and receiving antenna can receive extraneous radio signals and reach radio signal receiver and reach decoder decode again;
Wherein when transmitter broke away from the floppy disk of electronic installation of desire protection, emission switch promptly was positioned at the state of power-off.
2. the alarm with electronic installation of floppy disk according to claim 1 is characterized in that, wherein transmitter also comprises an emission sequential circuit, with the number of times of control emission code time per unit emission.
3. the alarm with electronic installation of floppy disk according to claim 1, it is characterized in that, wherein change-over switch comprises that also the switching receiver is in the state of seeking, when transmitter is the state of antitheft startup, and receiver is when the state sought, if the emission code launched of transmitter drapes over one's shoulders receiver and receives, the warning horn of the receiver signal that gives the alarm then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99122008 CN1118780C (en) | 1999-10-25 | 1999-10-25 | Antitheft mechanism for electronic device with card slots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99122008 CN1118780C (en) | 1999-10-25 | 1999-10-25 | Antitheft mechanism for electronic device with card slots |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1294370A CN1294370A (en) | 2001-05-09 |
| CN1118780C true CN1118780C (en) | 2003-08-20 |
Family
ID=5282255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99122008 Expired - Fee Related CN1118780C (en) | 1999-10-25 | 1999-10-25 | Antitheft mechanism for electronic device with card slots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118780C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005075301A (en) * | 2003-09-03 | 2005-03-24 | Mitsubishi Electric Corp | Information processing device |
| CN102036026B (en) * | 2009-09-28 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Television anti-theft system and method |
-
1999
- 1999-10-25 CN CN 99122008 patent/CN1118780C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1294370A (en) | 2001-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Publication of application | ||
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |