baber/WOPTO huggingface dataset:
Patent TW-I270153-B (TW)
Title: Package with a chip having a bevel
Inventor: CHEN JIAN-CHENG
IPC: H01L21/60
Filed: 2005-06-16
Granted: 2007-01-01
Abstract: The present invention relates to a package with a chip having a bevel. The package of the invention comprises: a chip, an adhesion layer and a substrate. The chip has a first surface and a second surface, wherein the first surface is a non-trace surface and the second surface is a trace surface. The second surface of the chip has a plurality of bumps. A bevel is formed on edge of the first surface of the chip. The adhesion layer is disposed between the second surface of the chip and a first surface of the substrate. The chip is disposed on the first surface of the substrate. Whereby, the bevel is used to prevent the adhesion layer from climbing to the first surface of the chip. Therefore, the problem of defect on the surface causing by the adhesion layer and the problem of adhesion decreasing can be improved. The reliability of the products could be promoted.
Patent TW-I266396-B (TW)
Title: Semiconductor device
Inventor: KIKUCHI KATSUMI
IPC: H01L23/29
Filed: 2005-07-12
Granted: 2006-11-11
Abstract: A minute wiring structure portion including first wiring layers and first insulating layers, in which each of first wiring layers and each of first insulating layers are alternately laminated, is formed on a semiconductor substrate. A first huge wiring structure portion is formed on the minute wiring structure portion, and the first huge wiring structure portion is formed by successively forming on the minute wiring structure portion, in the following order, the first huge wiring portion including second wiring layers has a thickness of twice or more of the thickness of the first wiring layers and second insulating layers, in which each of second wiring layers and each of second wiring layers are alternately laminated, and a second huge wiring structure portion including third wiring layers has a thickness of twice or more of the thickness of the first wiring layer and a third insulating layer in which the elastic modulus at 25 DEG C is not more than of the second insulating layers, each of the third wiring layers and each of the third insulating layers being alternately laminated.
Patent TW-I288800-B (TW)
Title: Blower
Inventor: HSU WEI-CHUN
IPC: F04D17/06
Filed: 2005-07-15
Granted: 2007-10-21
Abstract: A blower includes a housing and a plurality of impellers. The impellers are disposed in the housing, and there is a common flow passage, for the impellers, formed in the housing to stabilize the airflow and increase the air pressure at the air outlet, thereby improving its performance.
Patent TW-I264982-B (TW)
Title: Hook device
Inventor: CHEN CHENG-CHU
IPC: H05K7/10
Filed: 2005-07-19
Granted: 2006-10-21
Abstract: A hook device is described, comprising a hook base, an adsorptive member, a slider, a hook and a secondary hook base. The hook base includes a containing chamber, in which the containing chamber has an opening. The adsorptive member is set in a sidewall of the containing chamber and is opposite to the opening. The slider is deposed within the containing chamber, in which the slider has a top surface. The hook is deposed in the containing chamber and is on the top surface of the slider, in which a magnetic adsorptive power is induced between the hook and the adsorptive member. The secondary hook base has a hook groove corresponding to the opening. A portion of the hook is removed out through the opening of the containing chamber and is clipped in the hook groove by pushing the slider.
Patent TW-I356825-B (TW)
Title: (1s,5s)-3-(5,6-dichloropyridin-3-yl)-3,6-diazabicy
Inventor: WAYNE GREG S
IPC: C07D487/00
Filed: 2005-07-21
Granted: 2012-01-21
Abstract: The present invention relates to the salt (1S,5S)-3-(5,6-dichloropyridin-3-yl)-3,6-diazabicyclo[3.2.0]heptane benzenesulfonate and to methods of preparing the salt.
Patent TW-I269324-B (TW)
Title: Electronic device and the production method
Inventor: ITO KAZUSHIGE
IPC: H01G4/12
Filed: 2005-08-16
Granted: 2006-12-21
Abstract: An electronic device having an element body, wherein dielectric layers and internal electrode layers are alternately stacked, wherein a hetero phase is formed in the dielectric layers and/or the internal electrode layers; and the hetero phase includes a Mg element and a Mn element. Preferably, the hetero phase is formed at least at a part near boundaries of the dielectric layers and the internal electrode layers.
Patent TW-I287272-B (TW)
Title: Method of manufacturing flash memory device
Inventor: JOO KWANG-CHUL
IPC: H01L21/336
Filed: 2005-12-23
Granted: 2007-09-21
Abstract: A method of manufacturing flash memory devices includes depositing a nitride film over a semiconductor substrate and forming an oxide film below the nitride film using an oxidization process involving an anneal process. A tunnel oxide film or an ONO2 oxide film having a thin thickness and a good film quality is formed and the operating performance of memory cells is improved.
Patent TW-I291117-B (TW)
Title: A tapping operation method and a mobile electrical apparatus with tapping operation function
Inventor: WU KUO-CHEN
IPC: G06F3/02
Filed: 2005-12-29
Granted: 2007-12-11
Abstract: A tapping operation method, which can input an instruction by tapping an electrical apparatus, includes the following steps. First, at least one gravity acceleration vector along the electrical apparatus is detected. Then, the instruction is inputted into the electrical apparatus when a variation rate of one of the gravity acceleration vector exceeded a predetermined value. In addition, a mobile electrical apparatus with tapping operation function, which employs this method, is also disclosed.
Patent TW-I312385-B (TW)
IPC: E05B19/02
Filed: 2006-12-06
Granted: 2009-07-21
Abstract: This invention provides a structure of key. Particularly, the structure of key is a kind of lock bar, which uses a plurality of blocks and a bar body to be used to cover the blocks, to provide break through from the conventional method, which needs to use a machine to copy the key. This invention not only can provide a precise effect, but also can use module standardization for mass production. This invention is really an innovated structure.
Patent TW-I343694-B (TW)
Title: Voltage converter
Inventor: Liu yi sheng
IPC: H02M3/155
Filed: 2007-12-31
Granted: 2011-06-11
Abstract: A voltage converter includes a pulse width modulation controller chip, an enabling transistor, a first resistor, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, an enabling comparator, a first gate driver, a second gate driver, a current source, a first comparator, a power-on reset circuit, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a pin OCSET. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load circuit.
Patent TW-I378523-B (TW)
Title: Method of inspecting semiconductor device and device of inspecting semiconductor device
Inventor: KITAGAWA HIROKI
IPC: H01L21/66
Filed: 2008-04-03
Granted: 2012-12-01
Abstract: The magnitude of an amplitude waveform of an electromagnetic wave generated when irradiating a pulse laser beam to a structure A including diffusion regions provided in the structure of a semiconductor device to be inspected is compared with the magnitude of an amplitude waveform of an electromagnetic wave radiated when irradiating the pulse laser beam to a structure A of a reference device measured in advance, and the detection sensitivity of the electromagnetic wave is corrected (S14). Thereafter, measurement errors caused by variations in the detection sensitivity of electromagnetic waves of an inspecting apparatus are eliminated by inspecting the semiconductor device as an inspection target, so that the quality of the semiconductor device is precisely determined (S16).
Patent TW-I410284-B (TW)
Title: Apparatus for providing photoresist of slit coater
Inventor: CHO KANG IL
IPC: B05B9/04
Filed: 2008-04-17
Granted: 2013-10-01
Abstract: A device for supplying a coating solution of a slit coater is provided to shorten the path through which the coating solution is supplied, thereby preventing a delay in ejection of the coating solution, and to enable scale up of the capacity of a pump, thereby improving the quality of a slit coater. A device(3) for supplying a coating solution of a slit coater comprises: a piston(20); and a cylinder(30) including a piston running portion(11) into which the piston is inserted so that the piston reciprocates along the horizontal direction, and an extended portion(13) formed by enlarging the space from the end of the piston running portion along the longitudinal direction. A feeding valve(V1) for controlling the supply of the coating solution is linked to the piston running portion, and an ejection valve(V2) for controlling the ejection of the coating solution is linked to the bottom of the extended portion.
Patent TW-I403820-B (TW)
Inventor: LAI HUNG YU
IPC: G03B17/04
Filed: 2008-07-15
Granted: 2013-08-01
Abstract: A dust cover device includes a base, two cover units set up oppositely in the base, a connecting rod, and a linking unit. Each cover unit has a swing arm hinged in the base in a swinging manner, and a dust cover rotatably connected with the swing arm. The connecting rod is rotatably installed in the base. An elastically movable unit has a first elastic element and two second elastic elements. The first elastic element is connected to the base and the connecting rod. Each second elastic element is connected to the connecting rod and swing arm of one of the cover units. In this way, when the connecting rod is rotated toward a direction in response to an external force, it would overcome the elastic force of the first elastic element, and involve the second elastic element to move the swing arm to simultaneously drive the dust cover, so that tops of the dust covers abut against each other and rotate to be closed firmly so as to shut off the opening.
Patent TW-I417189-B (TW)
Title: Interlayers comprising stabilized tungsten oxide agents
Inventor: FISHER WILLIAM KEITH
IPC: B32B17/10
Filed: 2008-08-01
Granted: 2013-12-01
Abstract: The present invention includes polymer interlayers that are used in multiple layer glazing panels. Interlayers of the present invention comprise a thermoplastic polymer, a plasticizer, a tungsten oxide agent, and a stabilizing agent that prevents the degradation of the tungsten oxide agent. Interlayers incorporating such components have improved ultraviolet light blocking character, and also maintain optical quality over time.
Patent TW-I387338-B (TW)
Title: Support structure of display device
Inventor: WANG BO REN
IPC: H04N5/655
Filed: 2009-01-15
Granted: 2013-02-21
Abstract: The present invention provides a support structure of a display device (100, 300, 500), which includes a display device (100, 300, 500) and a stand (200, 400, 600). The display device (100, 300, 500) includes a back board (102) with a hole (110) and an elastic unit (104). The elastic unit (104) protrudes inside the hole (110), and is connected to the back board (102). The elastic unit (104) has at least one rotationally fastening concavity (112). The stand (200, 400, 600) comprises a stand body (202) and a first tenon (206) disposed on the stand body (202). The first tenon (206) comprises a plane fastening part (218) and a rotationally fastening part (220). While turning the first tenon (206), the back board (102) is fastened between the plane fastening part (218) and the stand body (202), and the rotationally fastening part (220) is fixed in the rotationally fastening concavity (112) while the first tenon (206) is turned to an angle.
Patent TW-I403740-B (TW)
Title: System, method and computer program for detecting an electrostatic discharge event
Inventor: GAUTHIER PIERRE
IPC: G01R31/28
Filed: 2009-02-13
Granted: 2013-08-01
Abstract: A system (100) for detecting an electrostatic discharge event with respect to a device (110) to be monitored comprises a current measurement device (140) configured to measure a current flowing via a power supply connection (120) connecting the device to be monitored with the power supply to obtain a current measurement signal representing the current or a current component. Alternatively, a current flowing through a protective earth connection (180) connecting the device to be monitored with the protective earth is measured to obtain the measurement signal. The system comprises an electrostatic discharge event detector configured to detect an electrostatic discharge event in response to a pulse of the current measurement signal. The system may optionally comprise data processing of current measurement signals or values.
Patent TW-I412589-B (TW)
Title: Mutant blue fluorescent protein and method of using the same for fluorescence resonance energy transfer and blue fluorescent fish
Inventor: CHANG MING CHUNG
IPC: C12N15/12
Filed: 2009-11-25
Granted: 2013-10-21
Abstract: The present invention discloses a mutant blue fluorescent protein (BFP) exhibiting, at an aerobic or anaerobic system, larger fluorescent intensity than a BFPvv D7 of SEQ ID NO: 2 derived from a wild type BFP, BfgV of SEQ ID NO: 1, obtained from Vibrio vulnificus, wherein a set of mutation positions of the mutant BFP corresponding to SEQ ID NO: 2 comprises position 176 or position 178. In a preferred embodiment, the set of mutation positions of the mutant BFP corresponding to SEQ ID NO: 2 comprises a S176R mutation or a V178I mutation. Moreover, methods of using the blue fluorescent proteins from Vibrio vulnificus for fluorescence resonance energy transfer (FRET) and a blue fluorescent fish are also provided.
Patent TW-I415514-B (TW)
Title: Driving circuit and method of light emitting diode
Inventor: WANG JIA SHYANG
IPC: H05B37/02
Filed: 2009-12-16
Granted: 2013-11-11
Abstract: A driving circuit and a driving method of an light emitting diode (LED) are provided. The driving circuit includes a current source, a voltage source, a voltage detecting unit, a memory unit, and a control unit. The voltage detecting unit detects a present voltage value of the LED. The memory unit records a previous voltage value of the LED. The control unit controls the voltage source to provide a pre-charge voltage to the LED in a driving period, and to cease providing the pre-charge voltage when the present voltage value is no longer less than the previous voltage value. The voltage level of the pre-charge voltage is determined by the previous voltage value. The control unit controls the current source to provide a driving current to the LED in the driving period.
Patent TW-I410561-B (TW)
IPC: F04B49/06
Filed: 2010-09-21
Granted: 2013-10-01
Abstract: The purpose of this invention is to provide a position sensing type pneumatic cylinder which makes use of the LVDT theory to perform position sensing of the pneumatic cylinder through the use of a coil and a magnetic core without any extra sensors. The technical means comprises: a pneumatic cylinder body consisting of a hollow main cylinder body, an insulated linear axle sleeved and fixed at the exterior of the main cylinder body, and a metal magnetic cover sleeved and fixed at the exterior of the insulated linear axle, wherein a receiving space is formed between the insulated linear axle and the metal magnetic cover; a pneumatic pole with one end movably secured in the pneumatic cylinder body and the other end protruded from and slidable in the pneumatic cylinder body; a coil group wound in the receiving space, the coil group consisting of at least one primary coil and one secondary coil; and a magnetic core sleeved at one end of the pneumatic pole out of the pneumatic cylinder body.
Patent GB-2482628-B (GB)
Title: Permeability flow balancing within integral screen joints
Inventor: JOHNSON MICHAEL H
IPC: E21B43/24
Filed: 2010-05-13
Granted: 2013-12-11
Abstract: A SAGD system in a formation including a heated fluid injection well having a tubular including permeability control, one or more open hole anchors restricting thermal growth of the tubular and one or more baffles directing heated fluid application to target areas of the formation; a production well in fluid collecting proximity to the injection well the production well having a tubular with permeability control, one or more open hole anchors and one or more baffles.
Patent GR-8262-B (GR)
Title: Τελειοποιησεις και η εν σχεσει με μεσα προς ρυθμισιν της αποδιδομενης ισχυος ηλεκτροκινητηρων.
Filed: 1938-08-19
Abstract: ύστημα δια την ρύθμισιν της αποδιδομένης ισχύος εκ τινός ηλεκροκινητήρος δια της επενεργείας στοιχείου ρυθμίσεως ένθα ο ρυθμιζόμενος κινητήρ είναι ο μετά κινητήρος αποδέκτης ενός ηλεκτρικώς συνδεδεμένου μεταδότου βαθμιδωτής ενεργείας και ένθα υπάρχει μηχανική σύνδεσις μεταξύ του εν λόγω μεταδότου και του κινητήρος, της τοιαύτης συνδέσεως περιλαμβανούσης διαφορικόν σύστημα μεταδόσεως, όπερ έχει ενστοιχείον διηυθετημένον ώστε να αποτελεί, ή προσεταιρισμένον προς το εν λόγω στοιχείον ρυθμίσεως και το οποίον είναι επίσης διηθετημένον κατά τοιούτον τρόπον, ώστε ο μεταδότης δύναται να μετατοπισθεί, εν σχέσει προς τον μετά κινητήρος αποδέκτην δια της επενεργείας του στοιχείου ρυθμίσεως, εξ ού ο κινητήρ δύναται να κινηθεί εν συμφωνία με τον μεταδότην, της μηχανικής συνδέσεως επιφερούσης τότε καιτην κίνησιν του μεταδότου και ένεκα τούτου την κίνησιν του κινητήρος, ενόσω υφίσταται ή μεταξύ αποδέκτου και μεταδότου μετατόπισης.
Patent GR-10882-B (GR)
Title: Τροπος κατασκευης βραχιωνων σκελετων ομματουαλιωνμετα εσωτερικων μεταλλινων ενισχυσεων.
Inventor: MONNET FERNANDO COTTET
Filed: 1946-07-27
Abstract: ια του διπλώματος ευρεσιτεχνίας εις το οποίον είναι σχετικόν το παρόν περιγραφικόν υπόμνημα, αξιούμεν:
1. Την κυριότητα και αποκλειστικήν εκμετάλλευσιν ενός τρόπου κατασκευής βραχιόνων σκελετών ομματοϋαλίων μετά εσωτερικών μεταλλικών ενισχύσεων, συνιστάμενον κατ' ουσίαν όπως διαθέση, εντός των κοιλοτήτων του τύπου αι οποίαι οφείλουν να δώσουν το σχήμα των εις τους βραχίονας των σκελετών, τα μεταλλικά σύρματα τα προωρισμένα να αποτελέσουν τας ενισχύσεις των ειρημένων βραχιόνων, και να προκαλέση την δίοδον των συρμάτων τούτων δια μιας οπής ενός ή περισσοτέρων μικρών τεμαχίων ερείσματος διατεθειμένων εν είδει εμβόλων εν τη ειρημένη κοιλότητι.  Η οπή αύτη εκτελείται συμφώνως προς μίαν γραμμήν αντιστοιχούσαν εις τον άξονα του κατασκευαζομένουβραχίονος, ή συμφώνως προς άλλην γραμμήν κρινομένην μάλλον πρόσφορον, συμφώνως προς την οποίαν το ειρημένον σύρμα θα συγκρατηθή σταθερώς.  Τα ειρημένα τεμάχια εν σχήματι εμβόλων δύνανται τότε να μετατοπισθώσι υπό της ωθήσεως της ασκουμένης υπό της εισδοούσης ύλης εν τω τύπω κατά μήκος της κοιλότητος τούτου, μέχρις ότου έλθουν να καταλάβουν μίαν θέσινη οποία προβλέπεται εις το τέρμα της ειρημένης κοιλότητος, και εντός της οποίας θα παραμείνουν ακινητοποιημένα.  Το τεμάχιον το οποίον εδέχθη απ' ευθείας την ώθησιν της χυνομένης ύλης (υλικού) συντελεί εις τον σχηματισμόν του άκρου του χυθέντος βραχίονος, και επί τούτω παρουσιάζει το απαιτούμενον σχήμα.
Patent GR-35178-B (GR)
Title: Μεθοδος δια την παρασκευην 1 - υποκατεστημενων ενωσεων - 5 - νιτρο - 2 - ιμιδαζολινης.
IPC: C07D233/94
Filed: 1967-11-23
Abstract: έθοδος δια την παρασκευή 1-υποκατεστημένων-5-νιτρο-2-ημιδαζολύλο ενώσεων του γενικού τύπου:
Τύπος Ι
ένθα R είναι κατώτερον αλκύλιον, υδροξύ κατώτεροναλκύλιον ή κατώτερον αλκανοϋλοξυ κατώτερον αλκύλιον. Χ είναι υδρογόνον ή θείον, και R1 και R2 είναιυδρογόνον κατώτερον αλκύλιον, υδρόξυ κατώτερον αλκύλιον, φορμύλιον, κατώτερον αλκανοϋλιον, μονοαλογόνο κατώτερον αλκανοϋλιον, πολυαλογόνον κατώτερον αλκανοϋλιον, αμινο-κατώτερον αλκύλιον, κατώτερον αλκυλοαμινο- κατώτερον αλκύλιον. Το (τύπος ΙΙ) λαμβανόμενον ως σύνολον επιλέγεται εκ της ομάδος της αποτελουμένης εν -Ν-CHN κατώτερον αλκύλιον)2, πιπεριζίνης, κατωτέρας αλκυλοπιπεραζίνης, βενζυλοπιπεραζίνης, φαινυλοπιπεραζίνης, τολυλοπιπερζίνης, κατωτέρας αλκοξυφαινυλοπιπεραζίνης, αλογονοφαινυλοπιπεραζίνης, νιτροφαινυλοπιπεραζίνης, πυριδυλοπιπεραζίνης, κινολυλοπιπεραζίνης, θειαζολυλοπιπεραζίνης, κατωτέρας αλκοξυκαρβονυλοπιπεραζίνης, και κατωτέρας αλκυλο-θειο-θειοκαρβονυλοπιπεραζίνης, χαρακτηριζομένη εκ της δημιουργίας δακτυλίου επί ενώσεις του τύπου:
Τύπος ΙΙΙ
ένθα R, R1, R2 και X καθορίζονται ως ανωτέρω τη βοηθεία οξειδωτικού μέσου.
Patent GR-36368-B (GR)
Title: Χορτοκτονα μεσα.
IPC: C07F9/28
Filed: 1967-09-19
Abstract: οοκτόνα (χορτοκτόνα) μέσα, ιδία μέσα αποφυλλώσεως, άτιμα περιέχουν ως δραστικήν ουσίαν μίαν ένωσιν του τύπου : (τύπος 1) εις τον οποίον τα R1 καi R2 δύνανται να είναι όμοια ή διάφορα, και σημαίνουν μέχρις 6 ατόμων άνθρακος περιέχοντα αλειφατικά, ενδεχομένως εις ένα πενταμελή ή επταμελή δακτύλιον έγκλειστα υπόλοιπα, το Χ σημαίνει οξυγόνον ή θείον, το η ισούται προς μηδέν ή Ι, και το Υ σημαίνει εν άτομον αλογόνου, την αζιδο-, κυανο-, θειοκύανο-, ισοθεοκυάνο-, την ΟΗ- ή την SH ομάδα, το υπόλοιπονμιάς πρωτοταγούς ή δευτεροταγούς κατωτέρας αλειφατικής αμίνης, ή το υπόλοιπον ενός πενταμελούς ή εξαμελούς δακτυλίου, ο οποίος είναι συνδεδεμένος μετά του ατόμου του φωσφόρου εις εν άτομον αζώτου, ενδεχομένως δε και μιαν ή πλείονας εκ των ακολούθων προσθέτων ουσιών : φορείς, διαλύτας, διασπορείς ή διαβρέκτας, προσφυτικά μέσα, ενδεχομένως δε και έτερα γνωστά ποοκτόνα μέσα ή μέσα αποφυλλώσεως.
Patent GR-79732-B (GR)
Inventor: HOWARD H R
IPC: C07D209/34
Filed: 1983-09-19
Abstract: Certain substituted 1-phenyl-3-(aminoalkylidene)-2(1H,3H)-indolones are highly potent gabaergic agents, valuable in the treatment of individuals suffering from schizophrenia or reversing the side effects of a previously or concurrently administered neuroleptic agent; or in the treatment of epilepsy. A wider class of substituted 1-phenyl-3-(aminoalkylidene)-2(1H,3H)-indolones, together with 1-phenyl-3-(2-pyrrolidinylidene)-2(1H,3H)-indolones, and homologs thereof, are valuable in the treatment of anxiety.
Patent GR-851651-B (GR)
Inventor: CHENG-SHIANG JOHN SHIH
IPC: C08J9/06
Filed: 1985-07-04
Abstract: Foams are prepared from a linear low density polyethylene and, optionally, other olefinic polymers, such as a low density polyethylene using a chemical cross-linking agent. The resulting cross-linked polyethylene foams exhibit an excellent balance of properties at generally lower densities than foams prepared from low density polyethylene only.
Patent GR-852553-B (GR)
Inventor: FRIZON MAUD
IPC: B65D39/00
Filed: 1985-10-23
Abstract: Container (12), which may be used as a perfume bottle and is preferably spheroidal in shape, opens from the bottom and stopper (22) forms the base of the assembly. To apply perfume (18) a user can pick up the bottle and invert it, then remove the stopper (22) and apply perfume therefrom. In a normal, resting orientation, the spheroid bottle (12) rests on the stopper (22) and the weight of the bottle serves to ensure that it is securely closed.
Patent GR-1002394-B (GR)
Title: System for alternating alphabets on a bilingual keyboard.
Inventor: ROUMELIOTIS EMMANOUIL
IPC: G06F3/023
Filed: 1995-09-27
Abstract: The proposed system alternates the language of a bilingual keyboard of a compatible personal computer with the help of a switch which is connected to the serial port of the computer. The switch is placed between two singals of the serial port which are not used by peripheral devices for data. One of the signals is kept at logical 1 by the software and for this purpose either the RTS or DTR signals may be used. The second signal is grounded through the resistance R1 and for this purpose one of the signals CTS, DST, DCD or RI may be used. The capacitor C1 is used to handle the debouncing of the switch, so that no more than one interrupt is caused by each pressing of the switch. Whenever an interrupt occurs, the interrupt service routine changes the translation table of the keyboard from one language to the other.