| Patent Number |
Title Of Patent |
Date Issued |
| 4783650 |
Data display arrangement |
November 8, 1988 |
| A character display arrangement for displaying on a CRT rows of discrete characters. Digital codes represent both character data which identifies character shape and attribute data which identifies the attributes to be applied to displayed characters. The attribute data as received and s |
| 4783612 |
Low-pressure sodium vapor discharge lamp with protective glass layer on electrode lead-throughs |
November 8, 1988 |
| A low-pressure sodium vapor discharge lamp provided with a discharge tube having an electrical lead-through conductor extending through the wall of the discharge tube to an internal lamp electrode. The lead-through is enveloped by a protective glass layer having a double bead constructio |
| 4783611 |
High-pressure gas discharge lamp with electrodes having double layer coil |
November 8, 1988 |
| The high-pressure gas discharge lamp according to the invention has at least one electrode comprising an electrode rod and a helical winding near its tip projecting into the lamp vessel, both mainly of tungsten. The winding has a first layer of turns directly around the rod with locally |
| 4780840 |
Method of generating a pseudo-random sequence of signs of a large sequence length |
October 25, 1988 |
| A method by which random bytes are generated. Such a random byte is obtained by adding a prime number once or several times to an 8-bit character. The choice whether a prime number is added once or several times to the 8-bit character depends on whether the preceding addition produce |
| 4779252 |
Apparatus for automatically reproducing preferred selection from a record carrier |
October 18, 1988 |
| A compact-disc digital audio player is described in which a user can store preferred selections on selected discs in a memory. The player can identify the disc from the subcode on the disc and can read the corresponding preferred selection out of the memory to play this preferred sel |
| 4779142 |
System and method for electronically recording and playing back video images with improved chrom |
October 18, 1988 |
| Apparatus and method for encoding and recording electronic image information signals in a manner whereby luminance signals for odd field lines are recorded in association respectively with chrominance signals alternately selected from both the even field lines and the odd field lines |
| 4779128 |
Digital low-pass filter with improved frequency reduction characteristics |
October 18, 1988 |
| The invention relates to a digital low-pass filter which effects a frequency reduction by a factor which is equal to the ratio w/2 between the frequency of the input signal and the frequency of the output signal, wherein w is an odd integer. The input signal is applied to m series-ar |
| 4779030 |
Television line output circuit |
October 18, 1988 |
| A television line output circuit includes a first sawtooth network with a diode (D), a trace capacitor (Ct), a retrace capacitor (Cr) and a line deflection coil (Ly), and a second sawtooth network with a diode (D'), a trace capacitor (C't), a retrace capacitor (C'r) and a coil (L'). The |
| 4778397 |
Track lighting system and connecting plug with sliding lock |
October 18, 1988 |
| A current collector device intended to be connected to a voltage rail comprising a bottom part (1) with two parallel side walls (2, 3) on whose inner side longitudinally extending ribs (4, 5, 6, 7) are provided, while at least two mutually insulated current conductors (11, 9, 10) are pre |
| 4778275 |
Method of aligning a mask and a substrate relative to each other and arrangement for carrying ou |
October 18, 1988 |
| A method and an arrangement for aligning relative to each other a mask pattern (C) and a substrate (W) which are both provided with two alignment marks wherein by using two separate alignment systems (AS.sub.1, AS.sub.2) which are each associated with one mask mark (M.sub.1, M.sub.2) and |
| 4777405 |
Low-pressure lamp having a plurality of tubes and a cylindrical tube support |
October 11, 1988 |
| Low-pressure mercury vapor discharge lamp having a discharge vessel sealed in a gas-tight manner and filled with mercury and a rare gas. The discharge vessel comprises four parallel extending straight tubular portions positioned in a square which are connected together by means of co |
| 4775837 |
Surface coil for high-frequency magnetic fields for magnetic resonance examinations |
October 4, 1988 |
| A surface coil for magnetic resonance examinations which serves to generate or receive high-frequency magnetic fields. The loop forming the surface coil is divided into at least two, preferably equal loop sections. At least the loop section to be coupled to the high-frequency receiver or |
| 4775554 |
Method of providing a mould with a release layer |
October 4, 1988 |
| A method of providing a mould 1 (FIG. 1) with a release layer, in which a hydrophilic, inorganic surface 2, 4 of the mould is treated with a silane compound of the formula (R).sub.m --Si--(X).sub.4-m under anhydrous conditions. |
| 4775206 |
Separation structure, optical switching element including such structures and optical switching |
October 4, 1988 |
| A separation structure for selecting the propagation mode of the light waves in a light wave guide, the latter being constituted by a strip (100) of a semiconductor material having a first refractive index formed on a semiconductor substrate (10) of a material having a second refractive |
| 4774560 |
High voltage guard ring with variable width shallow portion |
September 27, 1988 |
| At least one annular region (11,12, . . . ) extends around an active device region (10) and is located within the spread of a depletion layer (25) from a reverse-biased p-n junction (20) formed by the device region (10) to increase the breakdown voltage of the junction (20). The device r |
| 4773721 |
Optical switching element between two light wave guides and optical switching matrix constituted |
September 27, 1988 |
| An optical switching element including two parallel light wave guides, whose opposite walls are mutually separated by a small distance (d), the so-called coupling distance, each constituted by a strip of a semiconductor material formed on a semiconductor substrate having a refractive |
| 4773090 |
Sub-assembly for electrical apparatus and electrical apparatus including such a sub-assembly |
September 20, 1988 |
| A sub-assembly (20) of a housing for electronic equipment and which is capable of carrying electronic components. The sub-assembly (20) comprises an injection moulded plastics body having an area (21) in which a regular array of apertures (22) are formed, pushbuttons (23) being mounted i |
| 4772822 |
High-pressure discharge lamp having electrodes wound in opposite sense |
September 20, 1988 |
| The high-pressure discharge lamp has oppositely arranged electrodes of wound tungsten wire. The electrodes are the mirror images of one another and are arranged in the mirror image orientations of one another. The electrodes are free from material favoring electron emission. The form and |
| 4772819 |
Compact high efficacy fluorescent lamp |
September 20, 1988 |
| Low-pressure mercury vapor discharge lamp having a tubular discharge vessel arranged within a lamp envelope. The discharge vessel consists of two, preferably generally helically bent tube parts which are connected together by a coupling joint which intersects the tube parts at a location |
| 4772119 |
Device for detecting a magnification error in an optical imaging system |
September 20, 1988 |
| A device is described for detecting a magnification error in an optical imaging system comprising a lens system (L.sub.1, L.sub.2) which is telecentric at one side. Two gratings (RG.sub.1, RG.sub.2) arranged in the object plane (MA) are imaged onto two gratings (WG.sub.1, WG.sub.2) a |
| 4771459 |
System for storing and distributing keys for cryptographically protected communication |
September 13, 1988 |
| In a system for storing and distributing keys for cryptographically protected communication each terminal (T.sub.i) must be provided with keys. If the system comprises many terminals (T.sub.i) each terminal must have a large memory capacity therefor. According to the invention, the t |
| 4770682 |
Device for manufacturing optical fiber preforms |
September 13, 1988 |
| In the P.C.V.D. process in principal the quartz tube need not be rotated during the deposition of the glass layers. However it has been found in practice that an improvement in the quality of the glass fibers can be obtained if the quartz tube is rotated regularly over an angle of 36 |
| 4770515 |
Optical viewing or projection device |
September 13, 1988 |
| Optical viewing or projection device, comprising at least two objectives (L.sub.1 L.sub.2) whose optical axes (x.sub.1 x'.sub.1 ; x.sub.2 x'.sub.2) are parallel to a general axis of symmetry (xx') of the device, endowed with a focusing system permitting the formation of images or viewing |
| 4770504 |
Magneto-optical light switching element and method of manufacturing same |
September 13, 1988 |
| A magneto-optical light switching element comprising islands which are formed from an epitaxial layer on the basis of bismuth-substituted rare earth metal iron garnet, which layer is provided on a magnetically unordered, optically transparent, (111)-oriented garnet substrate, integra |
| 4769835 |
Method of and circuit arrangement for inserting dialling intervals between stored dialling digit |
September 6, 1988 |
| A method and apparatus for providing dialling intervals in dialling sequences indirectly dialled by a register in which such sequences are stored, such intervals being in accordance with the dialling intervals produced by a user during direct dialling of such sequences. Direct dialle |
| 4768736 |
Information transmission system |
September 6, 1988 |
| An information transmission system is provided for a guided missile 1 in which guidance information is transmitted from the missile launch point to the missile along a beam 8 of 10 .mu.m wavelength radiation. The missile has a rearwards facing optical system 9 to collect and focus the ra |
| 4768187 |
Signal transmission system and a transmitter and a receiver for use in the system |
August 30, 1988 |
| A signal channel system which is particularly suitable for the employment of direct conversion receivers has a block of adjacent transmission frequency bands allocated to it. Each signal channel is split into two sub-channels or parts occupying mutually different frequency bands for |
| 4768032 |
Pager decoding system |
August 30, 1988 |
| A pager decoding system which is suitable for use with signal formats, such as POCSAG, in which code words are sent in batches, each batch containing a synchronization code word and (n-1) address/message code words, n being the number of code words in a batch, each code word comprising m |
| 4767421 |
Method of manufacturing a water-insoluble dye layer on a substrate and substrate comprising a dy |
August 30, 1988 |
| A method of manufacturing a homogeneous, water-insoluble dye layer on a substrate is provided in which a solution of a cationic or anionic dye in an organic solvent is provided on the substrate, the solvent is removed and the resulting dye layer is treated with an aqueous solution of a s |
| 4767187 |
Device for optically scanning an information carrier |
August 30, 1988 |
| The invention relates to an electro-optical device for optically scanning an information carrier, comprising a stationary frame, a movable optical holder, in which an objective having an optical axis is eccentrically mounted, a first electromagnetic actuator for translating the optical |
| 4766562 |
Digital analyzing and synthesizing filter bank with maximum sampling rate reduction |
August 23, 1988 |
| A digital analyzing and synthesizing filter bank in which a digital polyphase network in the analyzing filter bank provides sampling rate reduction by dividing an input signal into M complex sub-band signals, and the sub-band signals are subjected to a further staggered sampling rate |
| 4766494 |
Line number having circuit for a sampled interlaced television signal |
August 23, 1988 |
| In a line number halving circuit for a sampled interlaced television signal in one field the signal samples of a line (0, 4, 8) cancelled during halving are placed between the signal samples of an underlying or overlying maintained line (2, 6, 10) while in the other field alternately |
| 4766490 |
Method of and device for estimating motion in a sequence of pictures |
August 23, 1988 |
| Method of and device for estimating motion in a picture sequence, for use in compression of information to be transmitted or registered are disclosed. The method consists of: preserving the preceding picture with respect to the current picture; defining tree groups for the elements c |
| 4763326 |
Service-integrating, digital message transmission system for joint transmission of narrow-band a |
August 9, 1988 |
| In future broadband-ISDN, with preferably optical fiber subscriber connecting lines, the subscriber can not only access narrow-band ISDN-services but also broadband-services (for example moving picture services). For the integration of low-rate ISDN-signals and high-rate broadband si |
| 4763322 |
Digital radio transmission system with variable duration of the time slots in the time-division |
August 9, 1988 |
| A cellular digital radio transmission system wherein messages are transmitted from a base station to a plurality of mobile stations assigned to it by time-division multiplexing of time slots in respective TDM time frames, each mobile station being assigned by the base station to a re |
| 4763040 |
Picture display device |
August 9, 1988 |
| A picture display device adapted for use in a projection color television receiver and comprising a monochrome display tube provided with a line deflection coil and a field deflection coil arranged contiguously in the direction of the tube axis, the line deflection coil being closer to t |
| 4761351 |
Battery comprising one or more electrochemical cells having a double-walled cell lid |
August 2, 1988 |
| A battery of one or more electrochemical cells comprises in a metal cell box having a metal double-walled cell lid with a leadthrough of an electrically insulating material and a leadthrough pin, which lid is sealed hermetically to said box, a negative electrode of an alkali metal, a |
| 4760342 |
Electrostatic induction probe arrangement using several probes |
July 26, 1988 |
| An electrostatic induction probe arrangement using several probes. The probe electrodes and the screen electrodes surrounding them are fitted to the end faces of a substrate arrangement, and the conducting paths leading to the preamplifiers are arranged in several parallel planes, pe |
| 4760229 |
Microwave oven with a door-closing safety device |
July 26, 1988 |
| A microwave oven with a door-closing safety device is provided wherein a movable door comprises a device wherein the beam of at least one light emitter is guided by means of light guides towards a light beam detector. The light guides are arranged along a substantial portion of at least |
| 4759613 |
Acousto-optic modulator |
July 26, 1988 |
| An acoustooptic modulator for generating a modulated diffracted beam 14 from a laser beam 10 by refractive Bragg diffraction from a longitudinal compressional acoustic wave directed into a germanium block 21 by a transducer 2.By tilting the end face 26, 30, so that the angle of incidence |
| 4759192 |
Domestic appliance comprising a tool |
July 26, 1988 |
| A domestic ice-cream maker comprises a refrigerated bowl-shaped container for an ice-cream mass; a rotatable stirring tool associated with such container for scraping off ice-cream freezing at a refrigerated surface of the container; and a single-phase synchronous motor for rotating the |
| 4758874 |
Diode and metal stud therefor |
July 19, 1988 |
| A diode according to the invention comprises an electrically insulating envelope (2), within which a wafer (1) of semiconductor material with a pn junction is enclosed between metal studs (3,4). The metal studs (3,4) are sinter bodies mainly comprising tungsten, a sintering activator and |
| 4758447 |
Method of manufacturing an optical fibre |
July 19, 1988 |
| The invention relates to a method of manufacturing an optical fibre which is provided with a synthetic resin cladding and which comprises at least one layer of oriented molecules which is obtained by first orienting a liquid crystalline curable synthetic resin composition and then curing |
| 4758321 |
Method of sputtered depositing chromium-silicon-nitrogen resistor |
July 19, 1988 |
| A resistor having an insulating substrate bearing a thin layer of the alloy CrSi.sub.x, where 1.ltoreq.x.ltoreq.5 and which layer is doped with nitrogen. The doping may be spread homogeneously throughout the thickness or be concentrated in one or two thickness zones on the outside and/or |
| 4756972 |
Laminated optical component |
July 12, 1988 |
| Laminated optical component, for example an aspherical lens, comprising a supporting member which is manufactured from a transparent inorganic material and on at least one side has a layer of lacquer of a specific composition cured by means of radiation, for example UV radiation. |
| 4756793 |
Method of manufacturing a semiconductor device |
July 12, 1988 |
| A method of manufacturing a semiconductor device having at least one narrow and comparatively deep groove (3) in the semiconductor surface, while zones (9) are implanted in the walls and/or the bottom of the groove over only part of the groove length. According to the invention, the |
| 4755991 |
Ring shaped digital communication system and method for accessing a message channel in such syst |
July 5, 1988 |
| A ring-shaped TDM digital communication system and method for enabling stations connected thereto to obtain access to a common message channel available for all of the stations. Access is unambiguously determined by an arbitration procedure which selects the station which obtains access |
| 4755807 |
Colored device for data display |
July 5, 1988 |
| A device for the display of data, comprising on the one hand a matrix of luminous dots (11a, 11b, . . . 11n) each of which is constituted by at least one pair of light-emitting diodes arranged in anti-parallel with the color of the light emitted by one diode of the pair being different f |
| 4755714 |
Electromagnetic deflection unit for a television picture display tube |
July 5, 1988 |
| An electromagnetic deflection unit for a television picture display tube, the deflection unit being arranged around the envelope of the display tube and comprising a first deflection coil and a second deflection coil located more closely to the display tube envelope than the first de |
| 4755122 |
Weight regulator for a controllable injection moulding machine |
July 5, 1988 |
| The weight regulator for an injection moulding machine (1) to be controlled by a process regulator (13) comprises a circuit arrangement (15) for determining a final pressure adjustment value from the predetermined nominal weight of the injection-moulded parts to be manufactured by the |
