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| Number | Title | Issue Date |
| 4450573 | Bit data operated squelch A unique bit data operated squelch for use with a demodulator detector for phase shift keyed digital signals. The squelch detects transitions by testing a register of baseband demodulated sample synchronized to the data bit edges. The inventive data opera... | 05/22/1984 |
| 4450574 | Control circuit for liquid chromatograph A circuit for controlling the proportions of a plurality of solvents being introduced into a column of a liquid chromatograph. The circuit compensates for the compressibility of liquids by dividing the time during each pumping cycle during which the pump ... | 05/22/1984 |
| 4450575 | X-Ray tomography table having a virtual fulcrum arm pivot X-ray apparatus for tomography and other procedures. For tomography, a column is translated longitudinally parallel to the patient supporting table top. An x-ray tube is supported on the column above the table top for angulating about a laterally extendin... | 05/22/1984 |
| 4450576 | Apparatus for continuously measuring the element content in slurries An apparatus for continuously measuring the elemental contents of a slurry ndependent of the slurry density and slurry composition, by utilizing X-ray fluorescence analysis. The apparatus includes a measuring chamber with a slurry flow channel and a first ... | 05/22/1984 |
| 4450577 | X-Ray apparatus An X-ray apparatus is disclosed which comprises an X-ray tube, a high voltage generating circuit for applying a high voltage between the anode and the cathode of the X-ray tube, a filament heating circuit for heating a filament of the X-ray tube, first sw... | 05/22/1984 |
| 4450578 | Variable aperture collimator for high energy radiation An apparatus is disclosed providing a variable aperture energy beam collimator. A plurality of beam opaque blocks are in sliding interface edge contact to form a variable aperture. The blocks may be offset at the apex angle to provide a non-equilateral ap... | 05/22/1984 |
| 4450579 | Recognition method and apparatus A recognition apparatus comprising an image sensor sensing an image of a pad pattern on an IC chip pattern, a pre-treatment circuit for converting the outputs of the image sensor into binary-coded signals in accordance with at least two slice levels, and ... | 05/22/1984 |
| 4450580 | One-piece shopping bag handles A pair of handles for a shopping bag, each handle having a base and a bail molded of one-piece plastic construction, are disclosed. The opposite ends of the bail are integrally connected to the base in a manner so as to impart an aesthetically pleasing, g... | 05/22/1984 |
| 4450581 | Convenience container with cornered bottom A convenience container with a cornered bottom is comprised of an outer shell and a pouch sealed to the inside of the outer shell for containing a liquid. The outer shell is provided with fold lines and with a scored line for forming a mouth opening. The ... | 05/22/1984 |
| 4450582 | Method and apparatus for increasing the capacity of a satellite transponder by reuse of bandwidth A method and apparatus for increasing the capacity of present and future satellite communication systems transmits signals from correspondent pairs of earth stations simultaneously in channels that have at least a partial overlap in bandwidth. Each receiv... | 05/22/1984 |
| 4450583 | Multi-channel transceiver using a single high-stability element A multi-channel transceiver uses a single high-stability crystal to generate a signal that is multiplied to a frequency near a desired transmitting and receiving frequency. The multiplied frequency is mixed with the output of an offset oscillator having a... | 05/22/1984 |
| 4450584 | Microwave integrated circuit mixer In a mixer using a planar circuit such as a strip line or a microstrip line etc., an IF signal interruption circuit which passes an RF signal but exhibits an open-circuit impedance against an IF signal is provided in shunt with a main line on which the RF... | 05/22/1984 |
| 4450585 | Signal switching and combining systems for diversity radio receiving systems A signal switch and combining system for a radio communication system having two receivers (RA, RB) includes a comparator operable to determine which of the receiver output signal to noise ratios is the greatest at any instant. There... | 05/22/1984 |
| 4450586 | Automatic tuning device for FM receiver This invention relates to a FM receiver and more particularly to a FM receiver having an auto-scanning circuit. In a conventional FM receiver using an auto-scanning circuit, a window comparator is provided at the latter position of a demodulation circuit.... | 05/22/1984 |
| 4450587 | Tuning arrangement for providing relatively uniform automatic fine tuning sensitivity A tuning control system includes a pulse converter for converting a digital word to a corresponding pulse signal having pulses the width or frequency of which represents the magnitude of a tuning voltage associated with a respective channel. The pulse sig... | 05/22/1984 |
| 4450588 | Tuning system for a high frequency receiver utilizing a controllable inductor The tuning system for a high frequency receiver, particularly an AM receiver for vehicles, comprises a tunable input resonance circuit having a variable inductance formed by the signal winding of a controllable inductor. The control winding of the inducto... | 05/22/1984 |
| 4450589 | FM Receiver for reception of special announcements and general programs To improve reliability of recognition of an announcement recognition (AR) signal radiated by a transmitter upon broadcasting an announcement (e.g. traffic information, news, etc.) in the form of AM modulation of a 57 kHz auxiliary subcarrier, in which the... | 05/22/1984 |
| 4450590 | Discriminator circuit for frequency modulation receivers A frequency modulation receiver uses a low intermediate frequency (IF) signal for good image frequency rejection. The intermediate frequency signal is discriminated (or demodulated) after amplitude limiting the intermediate frequency signal by doubling th... | 05/22/1984 |
