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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 7665620 | Crane The present invention relates to a crane, preferably a truck crane, comprising a plurality of crane elements which are movable by actuators, a crane control unit for controlling and/or monitoring the movement of the crane elements, and at least one actuating switch ... | 02/23/2010 |
| 7649999 | Method and apparatus for establishing a key agreement protocol A system and method for generating a secret key to facilitate secure communications between users. A first and second and a function between the two monoids are selected, the function being a monoid homomorphism. A group and a group action of the group on the first ... | 01/19/2010 |
| 6208173 | Peak detector A peak detector comprises a device for storing a value representing the currently detected peak amplitude (Cp,Cn), a circuit for detecting whether the input signal amplitude exceeds the stored value (D1 to D4), an apparatus for updat... | 03/27/2001 |
| 6037833 | Generator for generating voltage proportional to absolute temperature A circuit includes a generator that supplies a signal that is directly proportional to the absolute temperature. No calibration or external reference components are necessary.... | 03/14/2000 |
| 6011591 | Method of displaying a VGA image on a television set The field-display means of a conventional television set are used, to which the odd lines of a VGA image are transmitted during one field and the even lines during the next field, thereby providing for the use of a television set as a computer monitor.... | 01/04/2000 |
| 5986659 | Blurring for computer graphics generated images A post-processing method and apparatus to produce focus/defocus effects in computer generated images of three dimensional objects. A convolution filter stores pixel values (V) and associated depth values (Z) with a filter kernel being selected from a look... | 11/16/1999 |
| 5986854 | Magnetic cassette recorder with reversing and translating magnetic head A magnetic cassette recorder comprises a magnetic head 19 which can be translated in directions 21 and 23 between an operating position, in which the head cooperates with a magnetic tape in an inserted cassette 3, and a withdrawn position, in which the he... | 11/16/1999 |
| 5970207 | Television system for transmitting pictures in a digital form To be able to transmit television pictures in a digital form through a medium having a limited bandwidth, the pictures are subjected to picture transform and to variable-length coding. The picture to be transmitted is converted in this manner into a bit s... | 10/19/1999 |
| 5954605 | Pulley A magnetic-tape-cassette apparatus provides a pulley (1, 21, 22) for a belt drive, particularly to a flywheel for a deck of the magnetic-tape-cassette apparatus. The pulley has a groove (10) at its circumferential edge (6, 7), in which groove a drive belt... | 09/21/1999 |
| 5956197 | System for reading magnetic information provided with a thermal asperity detector The invention relates to a system for reading magnetic information, comprising at least one read head H0 provided with two magnetoresistive rods (MR10, MR20) whose electrical resistivities (RMR10, RMR20) vary in mutually opposite senses when they are subj... | 09/21/1999 |
| 5953179 | Loading mechanism for a magnetic tape cassette apparatus The invention relates to a loading mechanism in a tape deck of a magnetic-tape-cassette apparatus, for moving a magnetic-tape cassette from an eject position of the loading mechanism into a play position of the loading mechanism. The mechanism comprises a... | 09/14/1999 |
| 5943368 | Transmission, recording and reproduction of a digital information signal A digital information signal is channel encoded into a channel signal. Data sequences in the channel encoded information signal that give rise to an analog signal, upon reproduction or reception, with a single frequency component at fb M, are l... | 08/24/1999 |
| 5933798 | Detecting a watermark embedded in an information signal To detect a watermark signal embedded within an information signal, predictive filtering is applied to either the information signal, a plurality of applied watermark signals, or both types of signals. After the filtering, a correlation is determined betw... | 08/03/1999 |
| 5914757 | Synchronization of multiple video and graphic sources with a display using a slow PLL approach A slow Phase Locked Loop (PLL) is utilized to prevent an abrupt change to a video display containing multiple images, when the source of the synchronization is changed. Such displays include Picture in Picture (PIP) television systems and computer display... | 06/22/1999 |
| 5913419 | Combination of a support for a disc-shaped recording medium and a holder for the support A combination of a support for a disc-shaped recording medium and a holder for the support. The support is a box-shaped cartridge having two parallel rigid main walls. The main walls have facing inner surfaces which bound a space for receiving the recordi... | 06/22/1999 |
| 5912637 | Magnetic recording method and apparatus which provide at least two write pulses for each binary signal bit to be recorded A method and an apparatus are disclosed for recording a binary signal onto a magnetic record carrier. The binary signal is supplied to an input terminal. The apparatus comprise generators for generating at least two write pulses (P1,P2 | 06/15/1999 |
| 5910717 | Circuit arrangement for controlling a reversible D.C. motor A circuit arrangement for controlling the operation of a d.c. motor. The circuit includes a controller having a reference potential input and a control input. The control input is used for controlling the speed of the motor. A plurality of switches allows... | 06/08/1999 |
| 5909563 | Computer system including an interface for transferring data between two clock domains An interface between two clock domains transfers data between the two clock domains without corruption or loss of data being transferred. Each clock domain has a respective clock. The two clocks have a fixed relationship. A data signal is registered in a ... | 06/01/1999 |
| 5909024 | Integrated system for reading magnetic information The invention relates to a system for reading magnetic information, comprising a magnetoresistive bar and a first differential amplifier connected to the magnetoresistive bar. A reading system according to the invention also comprises a second differentia... | 06/01/1999 |
| 5907279 | Initialization of a wireless security system In a security system, detector apparatuses (101, 102, 103) transmit an alarm message to a central apparatus 100 via RF in response to detecting an alarm condition. The message comprises a source identification uniquely identifying the transmitting apparat... | 05/25/1999 |
| 5905537 | Method and device for transmitting and receiving teletext data By encoding references to teletext pages as an offset to a referenced teletext page, significant gains in transmission efficiency can be realized. The current teletext standard provides a mechanism for linking teletext pages, but the maximum number of dif... | 05/18/1999 |
| 5905600 | Method and apparatus for recording and locating information on a storage medium An apparatus and method for recording a data signal in at least one data track on a record carrier and for recording an additional signal in an auxiliary track on said record carrier is disclosed. The data track and the auxiliary track are parallel to eac... | 05/18/1999 |
| 5905408 | Amplifier and a method for detecting the presence of a load An amplifier and a method for detecting the presence of a load (3) in a bridge-type amplifier configuration, in which the amplifier includes two amplifying circuits (1, 2). A load detection sequence is combined with an activation sequence of the amplifier... | 05/18/1999 |
| 5903189 | High gain low distortion bridge amplifier with feedback A bridge amplifier circuit comprising two amplifiers in bridge configuration having a feedback path from the output of one of the amplifiers to the reference input of the other amplifier, together with compensation means for reducing the voltage variation... | 05/11/1999 |
| 5903609 | Transmission system using transmitter with phase modulator and frequency multiplier A transmission system for transmitting digital symbols by modulation according to a phase constellation includes a transmitter having a phase modulator and a frequency multiplier in cascade for producing a modulated signal having a desired transmission fr... | 05/11/1999 |
| 5883755 | Apparatus for storage and/or reproduction of information on/from an information carrier The invention relates to an apparatus for the storage and/or reproduction of information on/from an information carrier accommodated in a cartridge. The apparatus comprises a motorized loader for the motorized loading of a cartridge. The apparatus has a m... | 03/16/1999 |
| 5873057 | Interactive audio entertainment apparatus The speech of a group of virtual characters is modelled using a directed graph or audio web, where each utterance is a node (A1-A7, B1-B5) in the web having links from it to each possible utterance that can be made in reply at any point in the course of t... | 02/16/1999 |
| 5867044 | Circuit arrangement for signal-pause detection A circuit arrangement is disclosed which detects a signal pauses in an audio signal, The audio signal is amplified, rectified, and then sent to a control unit. The control unit periodically sets the output of the rectifier to a predetermined level below a... | 02/02/1999 |
| 5867143 | Digital image coding A method and apparatus are disclosed for the coding of digital images for subsequent display by an apparatus having multiple image planes, wherein each image plane provides a unique information density. Accordingly, when an image feature is to be encoded,... | 02/02/1999 |
| 5859670 | Method and arrangement for transmitting teletext pages in the vertical blanking and active video intervals Conventional teletext decoders only respond to teletext data lines in the vertical blanking interval of a television signal. The decoders erroneously respond to conventional full-channel teletext transmissions in which all lines of the television signal a... | 01/12/1999 |
| 5834965 | Circuit for switching current in a mainly inductive load An "H" type amplifier circuit uses at least two current mirrors for alternately feeding current into the load in one direction and the other direction. In order to accelerate the turn-on of the current mirrors, a capacitance is associated with each of the... | 11/10/1998 |
| 5816521 | Magnetic-tape-cassette apparatus having a deck for magnetic-tape cassettes A magnetic tape cassette apparatus which has a magnetic head switchable between two groups of channels, respectively for forward and reverse play. Music searching, which detects pauses of at least a minimum duration in a group of recording tracks, is oper... | 10/06/1998 |
