CN203924971U - Integrated amplification guard device - Google Patents
Integrated amplification guard device Download PDFInfo
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- CN203924971U CN203924971U CN201420309645.9U CN201420309645U CN203924971U CN 203924971 U CN203924971 U CN 203924971U CN 201420309645 U CN201420309645 U CN 201420309645U CN 203924971 U CN203924971 U CN 203924971U
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- door
- touch
- switch
- lockhole
- integrated
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Abstract
Integrated amplification guard device, belong to electronic technology field, by touch sheet, touch integrated amplifier, door switch, lockhole switch, onsite alarming device forms jointly, the lifting that is inventor to existing achievement technology and perfect, wherein touch sheet is a sheet metal, be arranged on door above covers lockhole together with lockhole switch, and oppress the button of lock-switch, door switch is first contained in box, box is fixed on door and doorframe junction again, when after door and doorframe closure, doorframe is oppressed the button of door switch, when there being people to crack lockhole, hand rigidly connects tactile touch sheet and just produces touch signal, after touch integrated amplifier amplifies, successfully start onsite alarming device and send warning prevention, fail to prevent, touch sheet souththern pine is moving, lockhole switch contact changes and produces formal warning, if cruelty is forced open the door, door and the firm displacement of doorframe, door switch contact changes and produces formal warning, after the utility model is implemented, anti-theft safety door possesses initiatively protection, General Promotion security personnel's performances.
Description
Technical field
Belong to electronic technology field.
Background technology
Door be the central core of circulation of entering house, protected door, with regard to basic guarantee the safety of family.
Anti-theft safety door is the lifting of doing on the basis of door, coordinate with alarm, more secure than original door especially, but the alarm being equipped with is all to only have in flagrant delict just to produce and report to the police, cannot at the beginning of crime, just send warning by its prevention, and when crime in, produces and reports to the police, have and may produce serious consequence, and the form of such anti-theft safety door passive type protection, how allowing people work feels at ease, travel relieved? be in the time just having crime behavior, just to produce to report to the police to prevent in advance so allowing reports to the police, extremely be necessary, so just having had crime behavior just to produce to report to the police offender prevents, increase suspect's psychological pressure, receive in advance hand, reduce the generation of serious consequence, prevent if fail, or otherwise force open the door, which type of report to the police by mode, if warn with pre-, how to reach alarm and there is lead? for a long time, such difficult problem can not be properly settled all the time.
Society is in development, and science is improving, and technology wants innovative ability to meet the various demands in market, anti-theft safety door also constantly progress could meet modern people's demand, therefore, the security performance of anti-theft safety door is also treated further lifting.
Summary of the invention
In order to promote the performance of anti-theft security door product, main purpose of the present invention is to utilize prior art achievement, proposes new measure, and this measure is at the beginning of preparing crime, to prevent with regard to producing warning, that fails to prevent can also report to the police again, further promotes the performance of anti-theft product.
The technical solution used in the present invention is:
1, integrated amplification guard device is by touch sheet, touch integrated amplifier, and door switch, lockhole switch, onsite alarming device forms jointly.
Wherein: door switch is to be first arranged in a box, the cover plate of the box of installation door switch is longer than box, therefore, while being fixed on anti-theft safety door, screw is positioned on cover plate and door, the position that the box of installation door switch is arranged on anti-theft safety door is in door and doorframe junction, when after anti-theft safety door closure, doorframe is oppressed the button of door switch, the power supply of door switch constant open contact lead-out wire and touch integrated amplifier joins, and becomes the power supply of onsite alarming device after an isolating diode of the normal pin of door switch contact lead-out wire connection.
Lockhole switch is arranged on touch sheet below, lockhole top, touch sheet is oppressed the button of lockhole switch after being fixed on anti-theft safety door, the power supply of lockhole switch constant open contact lead-out wire and touch integrated amplifier joins, and the normal pin of lockhole switch contact lead-out wire connects the power supply that becomes onsite alarming device after another isolating diode.
Touch sheet is arranged on anti-theft safety door, and lockhole is covered together with lockhole switch, connects the trigger end of preposition integrated circuit in touch integrated amplifier after a commissure electric capacity of touch sheet lead-out wire series connection.
Touch integrated amplifier is made up of jointly preposition integrated circuit, integrated amplifier, control triode and control relay.
Touch sheet lead-out wire connects the trigger end of preposition integrated circuit, high threshold end and the VDD pin of preposition integrated circuit connect power supply, the CV pin of preposition integrated circuit is practiced midwifery raw second electric capacity vibrating to ground, the TH pin of preposition integrated circuit connects two-way, one tunnel is to practice midwifery the raw resistance vibrating to power supply, raw first electric capacity vibrating is practiced midwifery to ground in another road, and the OUT pin of preposition integrated circuit is preposition output.
Preposition output connects an anti-interference capacitor and sensitivity adjustment resistance over the ground, the preposition output of positive termination of integrated amplifier, the end of oppisite phase of integrated amplifier and the output of integrated amplifier are joined, the base stage that controls triode connects the output of integrated amplifier, control the grounded emitter of triode, two line buds of control relay, a line bud connects the colelctor electrode that controls triode, another line bud connects power supply, the constant open contact of control relay connects power supply, and the normal pin contact of control relay is the output of touch integrated amplifier.
Onsite alarming device is: by pronunciation sheet, and audio-frequency power amplifier, acoustical generator forms jointly.
The output of touch integrated amplifier, the normal pin of door switch contact lead-out wire, the normal pin of lockhole switch contact lead-out wire connects respectively the power supply that becomes onsite alarming device after an isolating diode, the positive terminal of audio-frequency power amplifier is received in the output of pronunciation sheet, the end of oppisite phase ground connection of audio-frequency power amplifier, the output of audio-frequency power amplifier has connect two-way, one tunnel has connected one end of audio frequency adjusting resistance, the audio frequency adjusting resistance other end connects audio frequency and adjusts electric capacity, audio frequency is adjusted electric capacity other end ground connection, another road is extremely connected with one of acoustical generator after having connected commissure electric capacity, another utmost point ground connection of acoustical generator.
2, in touch integrated amplifier, preposition integrated circuit is NE555.
3, the loudspeaker in onsite alarming device are that internal resistance is the internal magnetization loudspeaker of 8 Ω.
4, touch sheet is that sheet metal is made.
5, to be fixed on anti-theft safety door be to be screwed to touch sheet.
For having a clear understanding of the meaning of the technical program, first will make the following instructions:
When the existing achievement technology of inventor is normal door, without mechanical key, but the mode of opening the door with electronics telecontrol engineering or phone, in the time of normal door, is installed on the power set in door, will promote lockset and move, and realization is opened the door.But retained the mode that mechanical key opens the door, and while avoiding electronic telecontrol or phone to open the door, break down, can also open the door, so lockhole is covered, and this situation is own on the scene, so also can not feel alarmed even if produce alert sound.In normal door situation, door separates with doorframe, door switch can not produce warning enabling signal yet, but not normal door, door is subjected to displacement with doorframe, door switch contact changes and produces warning enabling signal, also therefore can differentiate the owner's that opens the door normal door or perpetrator's crime and open the door.
Have identification circuit, can correctly identify is the situation of crime behavior or owner's normal door.Its reason is that the behavior of opening the door is normally to open the door by electronic technology, instead of opens the door with mechanical key.When normal method is used electronic open-door, identification circuit input has electronic signal, and crime behavior identification circuit is inputted without electronic signal, will start warning system.
One, after the invention process, have multi-level warning, concrete condition is further explained as follows:
1, the firstth, pre-warning, i.e. warning in advance, the warning just producing at the beginning of crime.Mainly for the crowd of the heart who has crime; when attempting to crack lockhole, crime personnel enter room; hand rigidly connects tactile touch sheet (because the existing patent achievement technology of inventor; with opening door of remote-control; thereby lockhole is covered); send immediately pre-warning; this pre-warning can be that alert sound can be also gender neutral language; as " please noting " or " please not want again this stop " etc., criminal is produced at heart pressure and stopped, continuing if make it to understand; must be to lose more than gain; probably impel it to stop as early as possible, halt at this point, so played the initiatively effect of protection.
2, the protection of the second level is lockhole switch; be arranged on the lockhole switch on lockhole under touch sheet, if want to continue to destroy lockhole, touch sheet and lockhole souththern pine are moving; to be subjected to displacement by the shift knob of touch sheet compressing, and send formal alarm signal.
3, the 3rd is the protection of the barbarous mode of door switch, and door switch is arranged on door and doorframe junction, the state opening the door if improper, and door and the firm displacement of doorframe, door switch button is oppressed by doorframe no longer, and contact changes and produces formal alarm signal.
Two, produce principle and the effect of pre-warning:
1, the principle that early warning produces: preposition integrated circuit (06 in Fig. 1) forms a kind of oscillating circuit with oscillating element, when hand contact touch sheet, touch signal is through electric capacity, this electric capacity is the commissure electric capacity (02 in Fig. 1) between touch sheet and preposition integrated circuit, enter preposition IC interior, produce accurate vibration, cause vibration failure of oscillation or seriously change, the OUT pin that makes preposition integrated circuit is that preposition output (07 in Fig. 1) has high-order output.Triode (13 in Fig. 1) is controlled in this high-order output excitation after integrated amplifier (12 in Fig. 1), opens control relay (16 in Fig. 1), starts onsite alarming device sounding.
2, touch integrated amplifier is outstanding reliable:
(1), preposition integrated circuit is reliable, touch-sensitive, in the present invention of its reason, preposition integrated circuit is not in the time having touch signal, preposition integrated circuit is in vibrational stabilization state, and when having after touch signal, great change must occur oscillatory work state, output must have high-order output.The output direct-to-ground capacitance of preposition integrated circuit has interference effect, has improved this grade of performance from another angle.Preposition integrated circuit is being structurally combined into of analog circuit and digital circuit, analog functuion and logic function compatibility are integrated, produce accurate vibration, can share a power supply with integrated amplifier, and preposition integrated circuit maximum output current selects 200mA, carrying load ability is strong, and use is reliable, the life-span is long.
(2), amplifying stage has outstanding performance.Make amplifying circuit with integrated amplifier, multiplication factor than discrete component is much bigger, therefore when after hand contact lockhole cover plate, preposition integrated circuit has output, through the amplification of integrated circuit, triggers and controls triode, start control relay, control relay adhesive, control relay adhesive contact changes and starts onsite alarming device, and then produces warning.
3, the pre-warning of generation is sensitive reliable.The fine adjustment of sensitivity of integrated circuit, sensitivity adjustment resistance (09 in Fig. 1) resistance is large, its sensitivity step-down, resistance is little, sensitivity raises, and has very strong adjustable, compared with the amplifying circuit of discrete component, circuit is simpler, adjusts more conveniently, and performance is stronger.
4, the application of control relay (16 in Fig. 1), strengthen the reliability of triggering late-class circuit (being warning circuit) here, it can be large electric current by little current conversion, trigger late-class circuit more reliable and more stable, the constant open contact (17 in Fig. 1) of control relay connects power supply, and normal pin contact becomes the output (18 in Fig. 1) of touch integrated amplifier.
Three, warning starts sensitive reliable:
If pre-warning fails to prevent, continue to crack lockhole, touch sheet souththern pine is moving, and lockhole switch will send formal warning enabling signal.
The lockhole switch of installing, stable performance, shows: the one, can generation not make us terrified wrong report, this is the most important.Its reason is, the door that owner is absent from the scene is within doors opened (opening with improper), is all crime behaviors, and warning is now all very significant.
The 2nd, very reliable, because the opening the door at closing time of normal life, do not need artificial additional move, do not affect the normal habits and customs of people, thereby do not affect the normal work of the each starting of security system.
The 3rd, warning firing switch is sensitive and reliable, can in the time that crime behavior is not accomplished, just report to the police, thereby loss is reduced to minimum.The initiating signal of reporting to the police because the switch contact in the time that touch sheet is being become flexible on lockhole will change.
Perpetrator selects to force open the door by barbarous mode, report to the police and still reliably start, this is because of being positioned on the door switch of door with frame junction, door switch button is subject to the compressing of doorframe, in the improper situation of opening the door, anti-theft safety door just with doorframe displacement, door switch contact is no longer subject to doorframe compressing and contact is changed, thus generation warning enabling signal.
In normal door opening state, door switch can not produce warning enabling signal, also without artificial additional move, can not affect people's habits and customs, but not in the situation of normal door, also do not need the program of establishing that people add just to start warning, but as long as improper opening the door, door and the firm displacement of doorframe, door switch just produces warning enabling signal and starts warning.
So, continue to crack lockhole or force open the door by barbarous mode no matter be that crime is not accomplished, can start reliably warning, make security personnel's performance of anti-theft safety door obtain comprehensive lifting.
Four, the power supply of onsite alarming device by touch integrated amplifier export, door switch normal pin contact and the normal pin of lock-switch contact provide, therefore all very strong tracing properties, and in the time of nil case non-transformer, therefore circuit can not damage.In onsite alarming device, use audio-frequency power amplifier, simple in circuits, quiescent dissipation is low, operating voltage range is wide, peripheral cell is few, and voltage gain adjustment degree is wide, to advantages such as the distortion factor of sound are low, voice sheet (201 in Fig. 3) can be recorded some language in advance, as " please not stopping at this " or " asking speed to be left " etc.
Anti-theft safety door presents a kind of brand-new looks, has following outstanding advantage:
1, after the invention process, anti-theft safety door possesses initiatively protection, with alarm scientific matching, at ordinary times, stranger is kept outside of the door, prevents there being people just can send pre-warning at the beginning of committing a crime, and continues to commit a crime, and can send formal warning.Be through with the completely situation of the passive defence of anti-theft safety door, has promoted security personnel's performance of anti-theft safety door all sidedly.
2, early warning performance is outstanding.Reason one is highly sensitive, can ensure that early warning system will be started immediately in the time having people to want to destroy lockhole, the 2nd, and load capacity is strong thereby can ensure the embodiment of various early warning effects, and the 3rd, reliably, the life-span is long in use.
3, warning system partial properties is very excellent, and warning system can not be reported by mistake completely.Because after coordinating with existing achievement, there is automatic recognition property.The warning producing when owner is absent from the scene may be only crime behavior.Otherwise the behavior of not committing a crime, switch can not send signal, at this moment because the structures shape of switch is installed.Due to the intrinsic property of switch, in the time that being subject to compressing and not suffering oppression, shift knob there is to occur the variation of contact, lay special stress on protecting the lockhole being the most easily cracked.
4, force open the door by barbarous mode, reporting to the police, it is also sensitive reliable to start: the in the situation that of normal door, can not produce warning enabling signal, therefore can not affect people's habits and customs, also without people's additional move, and be not to open the door normally, door separates with doorframe is firm, and door switch can start immediately.
5, simple in circuits, cost is low, easily produces debugging.It is little that circuit accounts for area, is convenient to install.
Brief description of the drawings
Fig. 1 is touch integrated amplifier figure.
In figure: 01, touch sheet lead-out wire; 02, the commissure electric capacity between touch sheet and preposition integrated circuit; 03, produce the resistance of vibration; 04, produce first electric capacity of vibration; 05, produce second electric capacity of vibration; 06, preposition integrated circuit; 07, preposition output; 08, anti-interference capacitor; 09, sensitivity adjustment resistance; 12, integrated amplifier; 13, control triode; 16, control relay; 17, control relay constant open contact; 18, the normal pin of control relay contact, i.e. touch integrated amplifier output.
Fig. 2 is the scheme of installation of touch sheet, lockhole switch, door switch.
In figure: 01, the line of touch sheet; 20, touch sheet; 21, the screw of fixing touch sheet; 22, the printed panel of welding lockhole switch; 23, the screw of fixing welding lockhole switch printed panel; 24, lockhole switch; 25, lockhole switch constant open contact lead-out wire; 26, the normal pin of lockhole switch contact lead-out wire; 27, the box of door switch is installed; 28, the screw of fixed gate switch box; 29, the cover plate of door switch box; 30, door switch; 31, door switch constant open contact lead-out wire; 32, the normal pin of door switch contact lead-out wire; 33, door switch button; 35, doorframe; 36, anti-theft safety door; 37, lockhole.
Fig. 3 is onsite alarming device circuit diagram.
In figure: 18, the normal pin of control relay contact, i.e. touch integrated amplifier output; 26, the normal pin of lockhole switch contact lead-out wire; 32, door switch contact lead-out wire; 197, the output of bridge type early warning circuit connects the isolating diode of onsite alarming device; 198, the normal pin of lockhole switch contact lead-out wire connects the isolating diode of onsite alarming device; 200, the normal pin of door switch contact lead-out wire connects the isolating diode of onsite alarming device; 201, voice sheet; 202, audio-frequency power amplifier; 203, gain adjusting resistance; 206, electric capacity is adjusted in gain; 207, audio frequency is adjusted electric capacity; 208, audio frequency adjusting resistance; 209, commissure electric capacity; 210, acoustical generator.
Detailed description of the invention
Fig. 1 to 3 has described the specific embodiment of the present invention.
One, according to Fig. 2 embodiment, touch sheet, lockhole switch, door switch are installed.
1, become the touch sheet larger than lockhole by a metal material processing.
2, spile at the periphery of touch sheet, the place punching that cover plate is installed at shop front lockhole is corresponding with it, and the installing hole tapping of the shop front, in order to increase the difficulty of taking off touch sheet, can beat around several apertures, particularly lockhole more.
3, between touch sheet and door, add hollow cushion ring, allow hollow place expose lockhole.
4, touch sheet is fixed in the shop front.Should note fixing between touch sheet and door when fixing time, pad last layer insulant is as plastic washer.
5, connect touch sheet with one end of a wire, the other end has connected in the touch integrated amplifier being positioned in door.
6, lockhole switch is welded on a bar printing plate, the printed panel that has welded switch is fixed on door.
7, lockhole switch constant open contact lead-out wire and touch integrated amplifier power supply join, and make the power supply of onsite alarming device after an isolating diode of the normal pin of lockhole switch contact lead-out wire connection.
8, touch sheet is oppressed lockhole shift knob after fixing.
9, door switch is first arranged in a box.
10, the cover plate of door switch box is longer than box, and the place longer than box, two ends is screwed in anti-theft safety door and doorframe junction, when after anti-theft safety door and doorframe closure, oppresses the button of door switch.
11, the power supply of door switch constant open contact lead-out wire and touch integrated amplifier joins, and the normal pin of door switch contact lead-out wire connects the power supply that becomes onsite alarming device after another isolating diode.
Two, the touch integrated amplifier of installation and debugging.
1, selectors: preposition integrated circuit selects 555, controlling triode is large power triode.
2, welding: the mode according to Fig. 1 is welded.
3, debugging:
Test and adjustment prestage: the OUT pin of surveying integrated circuit with the voltage gear of universal meter, in the time that hand does not contact coverage sheet on lockhole and is touch sheet, the trigger end of integrated circuit is output as low level, below 0.5 volt, and integrated circuit trigger end should be exported a high position, the nonconforming resistor-capacitor unit value that should adjust integrated circuit in the time that hand contacts the touch sheet on lockhole.
Test with adjust amplifying stage: with the colelctor electrode of voltmeter observing and controlling triode processed, while being output as low level, control a very high position of current collection for triode when preposition, when preposition while being output as a high position, control the very low level of current collection of triode, as integrated amplifier insufficient sensitivity, should adjust sensitive adjusting resistance.
Three, Detection and adjustment onsite alarming device:
Onsite alarming device is pressed Fig. 3 welding.The output of touch integrated amplifier, the normal pin of door switch contact lead-out wire, the normal pin of lockhole switch contact lead-out wire are connect respectively to the power supply that becomes onsite alarming device after an isolating diode.
Adjust gain adjusting resistance and adjust electric capacity with gain, gain is met the requirements, adjust audio frequency adjusting resistance and audio frequency and adjust electric capacity, make sound undistorted.
In the time of hand contact touch sheet, onsite alarming device should be reported to the police.
Claims (5)
1. integrated amplification guard device, is characterized in that: by touch sheet, and touch integrated amplifier, door switch, lockhole switch, onsite alarming device forms jointly;
Wherein: door switch is to be first arranged in a box, the cover plate of the box of installation door switch is longer than box, therefore, while being fixed on anti-theft safety door, screw is positioned on cover plate and door, the position that the box of installation door switch is arranged on anti-theft safety door is in door and doorframe junction, when after anti-theft safety door closure, doorframe is oppressed the button of door switch, the power supply of door switch constant open contact lead-out wire and touch integrated amplifier joins, and becomes the power supply of onsite alarming device after an isolating diode of the normal pin of door switch contact lead-out wire connection;
Lockhole switch is arranged on touch sheet below, lockhole top, touch sheet is oppressed the button of lockhole switch after being fixed on anti-theft safety door, the power supply of lockhole switch constant open contact lead-out wire and touch integrated amplifier joins, and the normal pin of lockhole switch contact lead-out wire connects the power supply that becomes onsite alarming device after another isolating diode;
Touch sheet is arranged on anti-theft safety door, and lockhole is covered together with lockhole switch, connects the trigger end of preposition integrated circuit in touch integrated amplifier after a commissure electric capacity of touch sheet lead-out wire series connection;
Touch integrated amplifier is made up of jointly preposition integrated circuit, integrated amplifier, control triode and control relay;
Touch sheet lead-out wire connects the trigger end of preposition integrated circuit, high threshold end and the VDD pin of preposition integrated circuit connect power supply, the CV pin of preposition integrated circuit is practiced midwifery raw second electric capacity vibrating to ground, the TH pin of preposition integrated circuit connects two-way, one tunnel is to practice midwifery the raw resistance vibrating to power supply, raw first electric capacity vibrating is practiced midwifery to ground in another road, and the OUT pin of preposition integrated circuit is preposition output;
Preposition output connects an anti-interference capacitor and sensitivity adjustment resistance over the ground, the preposition output of positive termination of integrated amplifier, the end of oppisite phase of integrated amplifier and the output of integrated amplifier are joined, the base stage that controls triode connects the output of integrated amplifier, control the grounded emitter of triode, two line buds of control relay, a line bud connects the colelctor electrode that controls triode, another line bud connects power supply, the constant open contact of control relay connects power supply, and the normal pin contact of control relay is the output of touch integrated amplifier;
Onsite alarming device is: by pronunciation sheet, and audio-frequency power amplifier, acoustical generator forms jointly;
The output of touch integrated amplifier, the normal pin of door switch contact lead-out wire, the normal pin of lockhole switch contact lead-out wire connects respectively the power supply that becomes onsite alarming device after an isolating diode, the positive terminal of audio-frequency power amplifier is received in the output of pronunciation sheet, the end of oppisite phase ground connection of audio-frequency power amplifier, the output of audio-frequency power amplifier has connect two-way, one tunnel has connected one end of audio frequency adjusting resistance, the audio frequency adjusting resistance other end connects audio frequency and adjusts electric capacity, audio frequency is adjusted electric capacity other end ground connection, another road is extremely connected with one of acoustical generator after having connected commissure electric capacity, another utmost point ground connection of acoustical generator.
2. integrated amplification guard device according to claim 1, is characterized in that: in touch integrated amplifier, preposition integrated circuit is NE555.
3. integrated amplification guard device according to claim 1, is characterized in that: the loudspeaker in onsite alarming device are that internal resistance is the internal magnetization loudspeaker of 8 Ω.
4. integrated amplification guard device according to claim 1, is characterized in that: touch sheet is that sheet metal is made.
5. integrated amplification guard device according to claim 1, is characterized in that: it is to be screwed that touch sheet is fixed on anti-theft safety door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309645.9U CN203924971U (en) | 2014-06-11 | 2014-06-11 | Integrated amplification guard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309645.9U CN203924971U (en) | 2014-06-11 | 2014-06-11 | Integrated amplification guard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203924971U true CN203924971U (en) | 2014-11-05 |
Family
ID=51820820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309645.9U Expired - Fee Related CN203924971U (en) | 2014-06-11 | 2014-06-11 | Integrated amplification guard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203924971U (en) |
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2014
- 2014-06-11 CN CN201420309645.9U patent/CN203924971U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20160611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |