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| Number | Title | Issue Date |
| 4562563 | Record-disc player comprising a braking mechanism for braking a disc In a record-disc player comprising a disc-braking mechanism the turntable (7) is covered by a lid (14) which is pivotally connected to a housing (3). The lid (14) is latched in a closed position by means of a latching mechanism (30). A brake lever (21) is... | 12/31/1985 |
| 4562564 | Process and optical device for generating signals controlling the position of a scanning spot of the tracks of a data carrier The process makes it possible to generate on the basis of discrete preetching elements or flags, the radial tracking error and/or focusing error signals. The flags comprise portions displaced with respect to the mean axis of the tracks to be followed. Acc... | 12/31/1985 |
| 4562565 | Tracking servo system A tracking servo system of a recording-disc reading and reproducing apparatus in which the information carried on a recording disc adapted to be driven for rotation is scanned by a signal pickup point displaced radially of the disc, comprising tracking er... | 12/31/1985 |
| 4562566 | Disc player In a disc player, such as for a rigid disc, a compartment slides on the inside of the lid between an outer position in which a disc may easily be inserted or removed, and a position in which, when the lid is closed, the disc is on a turntable. A lever, pi... | 12/31/1985 |
| 4562567 | Apparatus for controlling the write beam in an optical data recording system Apparatus for recording data by means of a beam of radiation on a recording medium which upon exposure to the beam undergoes optically detectable changes in the form of pits, which apparatus includes means for reducing the beam intensity as a result of pi... | 12/31/1985 |
| 4562568 | Beam combining and separating apparatus useful for combining and separating reading and writing laser beams in an optical storage system Optical apparatus is disclosed for spatially combining and/or separating a plurality of reading and writing laser beams as required, for example, in an optical memory system. The apparatus includes a spatial combining and separating device comprising a th... | 12/31/1985 |
| 4562569 | Tandem coupled cavity lasers with separate current control and high parasitic resistance between them for bistability and negative resistance characteristics and use thereof for optical disc readout A two-segment contact buried heterostructure (BH) laser is pumped by a current applied to its absorber contact from a source of high impedance on the order of 100KΩ or more. The parasitic resistance between the absorber contact and the gain contact is hi... | 12/31/1985 |
| 4562570 | Video disc turntable having clamping device A turntable for use in a video disc playback unit includes a hub assembly adapted to fit within a central spindle aperture in the disc. The disc is secured in position by a plurality of clamp members pivotally mounted for movement in a radial direction ar... | 12/31/1985 |
| 4562571 | Speech processing device for radioelectric equipment adapted for speech transmission and reception The device is of the type comprising a circuit for compressing the dynamic of the speech signal before transmission of the signal at constant level and an expander for re-establishing at reception the speech level before compression thereof. A logic filte... | 12/31/1985 |
| 4562572 | Cellular mobile radio service telephone system An improved cellular mobile radio telephone system is described wherein the switching matrices used to provide communication paths between subscribers is also used to provide paths for carrying control information between a network control and the various... | 12/31/1985 |
| 4562573 | Method and apparatus for adjusting channel insertion timing An information communication system having a plurality of terminal equipment units, a network termination unit, a receive (R) line, and transmit (T) line. The terminal equipment units are commonly connected to the R and T line so as to communicate with th... | 12/31/1985 |
| 4562574 | Frame synchronizing signal insertion system A frame synchronizing signal insertion system at a transmitting end has a plurality of multiplexers. Frequency-divided frame synchronizing signals are produced by frame pattern generators of the plurality of multiplexers, respectively. These frequency-div... | 12/31/1985 |
| 4562575 | Method and apparatus for the selection of redundant system modules A method and apparatus for selecting at least one redundant module from a plurality of redundant modules in which the apparatus comprises a plurality of voting devices for monitoring the operation of an active redundant module, each voting device for gene... | 12/31/1985 |
| 4562576 | Data storage apparatus Data storage apparatus consisting of an array of RAM chips, with Hamming code checking for detecting double-bit errors. Address signals are fanned-out to the chips by way of driver circuits. Each driver circuit distributes an address bit to only two colum... | 12/31/1985 |
| 4562577 | Shared encoder/decoder circuits for use with error correction codes of an optical disk system A shared encoder/decoder circuit for use with a Reed-Solomon coding scheme of an optical disk storage system. The optical disk system includes a drive adapted to permanently store data on a removable platter. Prior to recording a data byte on the platter,... | 12/31/1985 |
| 4562578 | Method for data transmission In the recording/reproducing of digital audio signals, errors are detected and corrected by using two parity words, one arranged at the center of the block formed of data words and the arranged at one end of the block. The probability that uncorrectable e... | 12/31/1985 |
| 4562579 | Light beam modulating and deflecting system A light beam modulating and deflecting system comprising a stationary electrode secured to a stationary body, and a rotatable electrode secured to a rotating body, on which a light source is mounted, and opposed in slightly spaced relation to the stationa... | 12/31/1985 |
| 4562580 | Photolytic improvement of dye laser lifetimes The effective lasing lifetime of coumarin 102 in 50:50 ethylene glycol is gnificantly extended by increasing the rate of pumping and photolysis, with a flashlamp in a laser system having a pyrex ultraviolet filter and an inert cover gas.... | 12/31/1985 |
| 4562581 | Digital signal transmitting and receiving system for serial data which can be easily decoded A digital signal transmission system whereby the plural-bits-in-one-word digital signals are transmitted serially. According to this system, when the amount of data per unit time increases and the clock frequency of data is extremely high, a word synchron... | 12/31/1985 |
| 4562582 | Burst signal receiving apparatus In an apparatus for receiving a burst signal intensity-modulated by a signal obtained by Manchester-code converting each code of an input signal into a pair of codes, the received burst signal is converted by a partial response circuit into an AC signal a... | 12/31/1985 |
| 4562583 | Spectral slicing X-ray telescope with variable magnification A telescope (A) for viewing high frequency radiation. This telescope has a long focal length with a selection of magnifications despite a short housing (20). Light enters the telescope and is reflected by the telescope's primary optical system (10) and (1... | 12/31/1985 |
| 4562584 | Apparatus for measuring void ratios by using radiation In apparatus for measuring a void ratio by using radiation of the type comprising a hollow measuring unit through which fluid containing voids flows, a source of radiation and a radiation detector which are disposed on the opposite sides of the measuring ... | 12/31/1985 |
| 4562585 | Sequential x-ray crystal spectrometer A sequential x-ray spectrometer has a curved analyzer crystal and a position-sensitive detector. In order to obtain a high quantum yield or efficiency, an extensive suppression of scattered background radiation, and an increase of the measuring speed, the... | 12/31/1985 |
| 4562586 | X-Ray image pick-up device An X-ray image pick-up device includes an X-ray source for radiating X-rays onto an object including a region of interest, an image intensifier for converting to an optical image an X-ray image obtained when the X-rays radiated from the X-ray source are t... | 12/31/1985 |
| 4562587 | X-Ray tube having a rotary anode An X-ray tube having a rotary anode which is accommodated in a vacuum-tight housing so as to be rotatable by means of at least one spirally grooved bearing. The mutually cooperating surfaces of the bearing consist essentially of Mo or of an alloy of Mo an... | 12/31/1985 |
| 4562588 | Positioning device for an extension and repositioning apparatus A positioning device for use with an extension and repositioning apparatus for the orientation of an extremity comprises a support cradle for the extremity and a connection element. The support cradle is formed of a lower post fastened to the extension an... | 12/31/1985 |
| 4562589 | Active attenuation of noise in a closed structure This invention is directed to a system for the active acoustic attenuation of noise produced in the interior of an enclosure by a source of noise which in one aspect comprises input sensing operable to sense the source noise to be attenuated, cancellor ad... | 12/31/1985 |
| 4562590 | Water-resistant device for protecting an electronic sound producing apparatus and loudspeaker system In a water resistant device for protecting an electronic sound producing apparatus and loudspeaker system, the water resistant device includes a container for containing the sound producing apparatus. A removable lid cooperating with the container for sea... | 12/31/1985 |
| 4562591 | Digital dynamic range converter A digital dynamic range converter of the forward control type for varying the dynamic range of a digital audio signal constituted by a sequence of audio signal samples. Each audio signal sample x(n) is multiplied by a control signal sample s(n) which is d... | 12/31/1985 |
| 4562592 | Shifting technique for signature verification A signature verification system includes means for obtaining acceleration data and pressure data related to a given signature and means for comparing that data with reference data previously obtained from an identified signer. The correlations between seg... | 12/31/1985 |
| 4562593 | Method for determination of percentage T cell content of lymphocyte A method for determining the percentage T-cell content of lymphocyte, which comprises scanning a test specimen with a pickup device, discriminating a lymphocyte from other cells contained in said specimen from the output level and regional information of ... | 12/31/1985 |
| 4562594 | Method and apparatus for segmenting character images A method and apparatus are disclosed for segmenting character images in an optical image system where the character images have a predetermined pitch. The optical image system generates character information in the form of a successive series of scan line... | 12/31/1985 |
| 4562595 | Front panel for electronic device such as an automotive radio and method for installing same A front panel assembly for an automotive radio is disclosed which includes a central control panel, a left side control panel, and a right side control panel, each of which includes a respective plurality of control switches. Conductors, such as flexible ... | 12/31/1985 |
