Celebrity Inventors
Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6129341 | Device for installing cables The invention pertains to a method of installing cables (2) in cable ducts (6a, 6b, 6c) using installation devices (1) propelling the cables (2) into the ducts (6a, 6b, 6c). In accordance with the invention, the installation devices (1) are powered by mea... | 10/10/2000 |
| 6073238 | Method of securely loading commands in a smart card A method of securely loading and validating commands (COM) in a smart card (SC) is disclosed. Especially in the case where application-specific commands are loaded by an application provider (AP), that is off-line with respect to the card issuer (CI), it ... | 06/06/2000 |
| 6042006 | Authentication system wherein definition signals of two devices are altered, communicated between the two devices, and compared An authentication system having a first device and a second device between which signals may be communicated. The first device includes a first memory for storing a definition signal and the first device generates a first signal to be communicated to the ... | 03/28/2000 |
| 5897103 | Method for installing cables The invention pertains to a method of installing cables (2) in cable ducts (6a, 6b, 6c) using installation devices (1) propelling the cables (2) into the ducts (6a, 6b, 6c). In accordance with the invention, the installation devices (1) are powered by mea... | 04/27/1999 |
| 5884161 | Method for setting up a communication connection between a first party and a callable second party, a telecommunication system for applying the method, and a receiving device for receiving a call signal of a call transmitter therefor The method for setting up a communication connection in a universal personal telecommunication (UPT) system between a first party and a second party who can be called, often by a wire-free system, offers the possibility of setting up the communication con... | 03/16/1999 |
| 5878181 | Optical non-linear branching element A low-loss optical 1×2 branching element comprises a symmetrical Y junction (4) with identical branches (4.1, 4.2) and an asymmetric Y junction (5) with different branches (5.1, 5.2). The Y junctions are coupled by means of a common trunk (6) in which tw... | 03/02/1999 |
| 5856659 | Method of securely modifying data on a smart card A method of securely transferring data, such as program data, to a smart card (1) is disclosed. In order to be applicable in non-secure environments, the method of the invention involves a one-way authentication mechanism, comprising the use of a series o... | 01/05/1999 |
| 5826175 | Active tag having one diode for modulation and demodulation Known tags which are capable of receiving and demodulating signals by way of one and the same antenna and by way of one and the same diode, as well as being capable of modulating and transmitting signals, often have a poor efficiency, particularly if the ... | 10/20/1998 |
| 5818910 | Telecommunication system, as well as a telecommunication exchange, as well as a method Known telecommunication systems utilize of a telecommunication exchange with a switching matrix coupled to a storage device for storing a message. A calling subscriber dialing a certain telephone number will hear this message, whereafter he may be put thr... | 10/06/1998 |
| 5815498 | Transmission system for ATM cells through a passive local network A transmission method for ATM cells presented by local stations to a central station, and for ATM cells presented by the central station to the local stations, wherein a cell destined for the central station is stored in a cell buffer of one of the local ... | 09/29/1998 |
| 5796950 | Method of detecting service interactions in intelligent networks The invention provides a method of detecting service interactions in intelligent networks. According to the invention, the detection method comprises a first stage in which services are formally specified and a second stage in which the thus specified ser... | 08/18/1998 |
| 5774467 | Method and device for transforming a series of data packets by means of data compression The invention relates to a method and device for converting data packets by coding or compression, source data packets being converted into transmission data packets. In order to achieve an optimal degree of filling of the transmission data packets, a dat... | 06/30/1998 |
| 5761353 | Optical coupling device and optical switch for use in the coupling device An optical coupling device for a node in a self-healing optical network, wherein the number of switching elements is reduced by using a novel type of optical 2×2-switch. The switch has two switching states: (i) a bar state (ss1) in which a first and a se... | 06/02/1998 |
| 5745478 | ATM policing device An admission device for admitting data cells having VC codes, to a transmission medium, includes a device for reading out the VC code of an arriving data cell, a device for comparing a count value, which is a measure of the load of the data cell with the ... | 04/28/1998 |
| 5739511 | Method for effecting an electronic payment transaction having a variable number of payment units, as well as payment means and system for applying the method The invention relates to a method for protected payment with electronic payment device, such as "intelligent" payment cards ("smart cards"), in a variable number of steps. In this connection, use is made of a non-reversible function, of which successive f... | 04/14/1998 |
| 5740374 | System for transferring messages via different sub-networks by converting control codes into reference code compatible with a reference protocol and encapsulating the code with the message A transmission system for sub-networks having different transmission protocols. Control codes which are assigned to a message in a source sub-network are converted at the transition with a first intermediate sub-network, into reference codes which are com... | 04/14/1998 |
| 5727152 | Interface arrangement, and telecommunication system, and method Known interface arrangements for coupling a first arrangement based on a first protocol and a second arrangement based on a second protocol are not flexible. By providing a memory of the interface arrangement with at least a first memory field for storing... | 03/10/1998 |
| 5724034 | Device for establishing cell boundaries in a bit stream and CRC calculation A device for establishing boundaries in a bit stream is disclosed, which converts a first number of bits of the bit stream into a second number of bits (that is, the CRC is determined) and compares the second number of bits with a third number of bits of ... | 03/03/1998 |
| 5721747 | Method and device for data transmission having improved error resilience with concomitant integrity protection The invention relates to a method for transmitting data in a processed manner on a communication channel, in which a first series (1) of data is converted into a second series (2) of data by means of a first operation (P), the second series (2) of data is... | 02/24/1998 |
| 5714741 | Device for transparent interaction between an IC card and a remote terminal The invention provides a device (1) for providing a transparent exchange of commands and data between an IC card (11) and a remote terminal (42) via a communication network (41). The device (1) acoustically couples the IC card (11) with a telephone set (4... | 02/03/1998 |
| 5708713 | Method for monitoring a signal to be transmitted via at least one telecommunication link, a monitoring system, a monitor controlling device and processing means Prior art methods used for monitoring, via monitoring means, signals which are to be transmitted via telecommunication links and with said signals each comprising a signalling signal and a content signal, require that the processing means which are requir... | 01/13/1998 |
| 5708734 | Polarisation-independent optical device A polarisation-independent optical device for influencing the phase of an optical signal includes, in a light conductor (11), two identical adjustable phase shifters (14, 15), between which there is placed a polarisation converter (16). Optical signal com... | 01/13/1998 |
| 5703977 | Integrated optical mode converter Integrated optical mode converter provided with a channel-shaped waveguide comprising a periodic concatenation of two wave-guiding subsections (P) and (Q) defined by a strip-shaped structure supported by a substrate. The waveguide profiles of the subsecti... | 12/30/1997 |
| 5696856 | Integrated optical polarisation splitter An integrated optical polarisation splitter comprises a first waveguiding section (A) with a first guide (21), a second waveguiding section (C) with a second and a third optically decoupled and physically separated guides (24, and 25 or 28) and an interme... | 12/09/1997 |
| 5691916 | Method and device for calculating the quality of transmission media containing codecs A method of calculating the transmission quality of a series of cascaded codecs, wherein for each type of codec, a function is determined which is specific for the relationship between the Q-equivalent over a series of codecs of that same type and the num... | 11/25/1997 |
| 5687281 | Bark amplitude component coder for a sampled analog signal and decoder for the coded signal A sampled analog signal is filtered by a short-term prediction filter. The result, a segmented residual signal, is transformed from a time domain to a frequency domain into several frequency components, each having a frequency-component amplitude. If a nu... | 11/11/1997 |
| 5682377 | Transmission system for data cells in a local network In a transmission system for the transmission of data cells between local stations and a central station, cell arrivals are registered in a local register (CAR). Those registrations are periodically transmitted to the central station. The central station ... | 10/28/1997 |
| 5681417 | Method and device for stripping optical fibre ribbons For removing coating material from an end (5) of a fiber ribbon (1) over a length L, while using a chemical softening agent, the end is received and clamped between clamping parts (9, 35) of a holder. The clamping parts form a casing wall of a space in wh... | 10/28/1997 |
| 5680236 | Integrated optical wavelength demultiplexer An optical wavelength demultiplexer comprises a monomodal incoming waveguide (1) for an incoming optical signal (S(λ1, λ2, λ3, λ4)) being propagated in fundamental guided modes having different polarisations... | 10/21/1997 |
| 5655021 | Method for checking data sequences The invention relates to a method for checking data sequences, comprising a protection step and a verification step, with a control sequence being formed in the protection step on the basis of an identification sequence, which identification sequence comp... | 08/05/1997 |
| 5639183 | Installing cable-ducts A method for installing a tubular cable-duct around a cable buried in the ground includes steps of freeing a portion of the buried cable from the ground in a forward longitudinal direction of the cable, starting from a free end of the buried cable, and ad... | 06/17/1997 |
| 5635695 | Chip card based payment system having an on-card flag for specifying proper completion of a prior card balance replenishment session Improved integrity of a payment system for paying for services or goods, for example, telephone facilities, through use of electronic payment cards. In any session to increase a card balance, a "flag" is placed ("1") on the payment card which indicates th... | 06/03/1997 |
| 5636268 | Communication system with queues The invention relates to a communication system comprising a first network, a second network, first stations coupled to the first network and second stations coupled to the second network, with the first network and the second network being mutually coupl... | 06/03/1997 |
| 5596321 | System comprising a first encoder for coding a first digital signal, a second encoder for coding a second digital signal and at least one decoder for decoding coded digital signals, and coder and decoder for use in the system Known systems based on stereoscopic video coding and video decoding code with inadequate efficiency because the left-hand picture and the right-hand picture are coded and decoded independently of one another by means of the encoders present in the system.... | 01/21/1997 |
| 5588089 | Bark amplitude component coder for a sampled analog signal and decoder for the coded signal In a speech coder, a sampled analog signal is filtered by a short-term prediction filter. The result, a segmented residual signal, is transformed from a time domain to a frequency domain into several frequency components, each having a frequency-component... | 12/24/1996 |
| 5581546 | Apparatus for monitoring an ATM system Apparatus for monitoring a flow of ATM cells in which a measured value is calculated in all cases. A `leaky bucket` mechanism known for this purpose has too few degrees of freedom to be able to monitor the flow of cells accurately enough for it to be poss... | 12/03/1996 |
| 5539845 | Integrated optical polarization converter with enhanced periodic coupling and method of fabricating same Integrated optical polarization converter provided with a channel-type waveguide (B) defined by a strip-type structure (S4) supported by a substrate (S) and having a periodic concatenation of two different part strips having side walls which ar... | 07/23/1996 |
| 5528708 | Method and appertaining pair of mask patterns for fabricating, with the application of double masking, integrated optical waveguide structures An alignment-tolerant fabrication of a waveguide structure having a symmetrical component structure and an asymmetrical component structure such as an asymmetrical X junction, with the aid of the technique of double masking is presented. The entire wavegu... | 06/18/1996 |
| 5528629 | Method and device for coding an analog signal having a repetitive nature utilizing over sampling to simplify coding Speech signals coded according to the principle of high-resolution long-term prediction (HLTP) have a high accuracy due to the high-resolution which causes a high complexity. The ordinary LTP method is improved by use of oversampling and determining subse... | 06/18/1996 |
| 5510787 | System comprising at least one encoder for coding a digital signal and at least one decoder for decoding a digital signal, and encoder and decoder for use in the system according to the invention Known systems based on layered coding and decoding do not take account of the greater surface area of an HDTV picture, which is to be coded with high resolution, compared with the smaller surface area of a conventional picture, to be derived therefrom, wh... | 04/23/1996 |
