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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 5539781 | Combining diversity apparatus with squelch function In a combining diversity apparatus for a digital multi-valued modulation RF signal, at least first and second receiving antenna units having a space diversity relationship, first and second frequency conversion units for converting the RF signal into firs... | 07/23/1996 |
| 5539779 | Automatic offset control circuit for digital receiver An automatic offset control circuit comprises a differential output preamplifier having an offset adjustment function, further comprising an average detector, a peak detector, and a differential input amplifier. The average detector generates a reference ... | 07/23/1996 |
| 5520031 | Adhesively mounted security system A security device is described that is simple and reliable. It includes a base member which is adhesively attached to the surface of a large object such as a motor vehicle. A protective knife-edged boss surrounds and protects the adhesive to defeat attemp... | 05/28/1996 |
| 5506920 | Optical wavelength tunable filter An optical filter having a transmission wavelength to be tuned dependent on light incident angle is rotatively provided in a collimated light path. The optical filter is rotated by the displacement of a piezoelectric actuator by a structure in which the d... | 04/09/1996 |
| 5502987 | Process for controlling the horizontal movements of yarn carrier bars correlated with a predetermined distance between centers of the knitting needles in knitting machines A system for controlling the horizontal movements of yarn carrier bars in an automatic loom or knitting machine includes a plurality of yarn carrier bars mounted for horizontal movement, a respective stepper motor operatively connected to each yarn carrie... | 04/02/1996 |
| 5489403 | Method for welding pipe pieces made of thermoplastics In a method for connecting pipe pieces of corrugated pipes to form a pipe, which is to be used in particular as a protection pipe for communication cables or light wave guides, external pipe segments are formed by appropriate cutting in the vicinity of th... | 02/06/1996 |
| 5486649 | Shielded cable A shielded cable having in the core of the cable a plurality of conductors, a lateral shield having overlapping longitudinal ends surrounding the cable core. The shield has a thickness of up to about 6 mils. A helical groove formed in the shield, and an i... | 01/23/1996 |
| 5478768 | Method of manufacturing a semiconductor memory device having improved hold characteristic of a storage capacitor In a semiconductor memory device comprising a plurality of memory cells each including a switching transistor having a gate electrode and source/drain regions, one or more interlayer insulating layers are deposited on the surface of the substrate. A first... | 12/26/1995 |
| 5478255 | Connector establishing reliable connection by relative movement of a contact-holding insulator block and its cover A connector has an insulator block holding contacts and a cover. The connector connects to a second connector having a housing for removably receiving the cover and having conductors corresponding to the contacts. The insulator block is movable in the cov... | 12/26/1995 |
| 5464725 | Method of manufacturing a printed wiring board After pads 2 for mounting parts are formed at desired positions on an insulating board 1 in a circuit forming process using etching resist 3, the etching resist 3 is left on the pads without peeling it off. A first photosolder resist 4 is then formed betw... | 11/07/1995 |
| 5456196 | Sewing method including a step of downwardly folding facing junction edges of two parts of a workpiece and a sewing apparatus The described sewing machine has a work supporting bed (5) divided into two portions (6, 7) separated from each other by a central slot (8). The parts (2, 3) of a workpiece (M) to be assembled are laid down each on one portion (2, 3) of the work supportin... | 10/10/1995 |
| 5452384 | Optical integrated lensed connector for focussing oblique incident light An optical connector comprises a series of transparent substrates 50-53 including a refraction type lens 10 embedded in the central substrate 50, two beam deflection elements 40 and 41 offset from the optical axis of the lens 10, a light emitting element ... | 09/19/1995 |
| 5451269 | Semiconductor memory device including an improved substrate structure and method of fabricating the same The invention provides a semiconductor substrate structure for semiconductor integrated circuit devices including a memory cell array area involving both stacked capacitors and transistors and a peripheral circuit area involving transistors. A portion of ... | 09/19/1995 |
| 5443261 | Arcade type of toy having climbing objects A toy arcade game has a plurality of spaced parallel vertical tracks. A moving object (here a monkey) is mounted on each track to drop under gravity to the bottom of the track. An endless belt drives the object up the track. If a push button is pressed qu... | 08/22/1995 |
| 5441996 | Single package ionic emulsion polymers and their preparation One component water-based coatings, inks, adhesives and sealants comprising enhanced molecular weight epoxy emulsions and inactivated amines.... | 08/15/1995 |
| 5440423 | Optical illumination instrument In an optical illumination instrument for use in photolithographic process of manufacturing semiconductor devices, a reflection type homogenizer is composed of an array of paraboloid mirrors of a same size arranged on a same plane.... | 08/08/1995 |
| 5438570 | Service observing equipment for signalling System Seven telephone network Service observing equipment monitors, detects and makes call records from digital and audio information on an individual call basis. The observation equipment can monitor both a Signalling System Seven (SS #7) and a CCITT #7 in which data packets are tran... | 08/01/1995 |
| 5435638 | Solenoid-operated fluid-flow control valves A solenoid-operated fluid-flow control valve comprises a housing (10) incorporating a solenoid coil (14), a single armature (15) responsive to energization of the coil to determine a pressure differential across a pressure-sensitive member (28, 18) and to... | 07/25/1995 |
| 5434671 | Birefringent member cell gap measurement method and instrument A first polarizer and a second polarizer are located in an opposing relationship to each other on the optical axis of incident light with their polarization directions displaced from each other by a predetermined angle. A liquid crystal cell is arranged b... | 07/18/1995 |
| 5434434 | Semiconductor optical device having device regions and diffraction gratings A semiconductor optical device including multilayer semiconductor device regions formed on a surface of a semiconductor substrate which act as an optical device respectively, and diffraction gratings formed on a back of the substrate optically coupled wit... | 07/18/1995 |
| 5433480 | Notebook binder system A system for releasably and laterally mounting or removing a plurality of booklets including in a preferred embodiment: 1) unitary spines for removably retaining the booklets therein each having at least one upstanding tab on an outer surface thereof and,... | 07/18/1995 |
| 5433384 | Push button controlled multifunction shower head A push button controlled multifunction shower head. The push button moves a pawl attached to spring biased slide, the pawl bearing against a ratchet wheel which is rotated through a predetermined arcuate step responsive to each push button operation. The ... | 07/18/1995 |
| 5427491 | Hatch cover for loading particulate matter A hatch cover is a tent-like fabric structure having a skirt with dimensions which fit around and is attachable to a periphery of a hatch to keep foreign substances from falling into the hatch. Examples of such substances are rain, snow, dust, and any oth... | 06/27/1995 |
| 5426351 | Heater coil for electron tube A heater coil for an electron tube includes a spiral wire which is double wound to be cylindrical, and a connection wire which is formed on an upper face of the spiral wire in a horizontal plane. The connection wire is shaped to have at least two bent por... | 06/20/1995 |
| 5425034 | Semiconductor integrated logic circuit with internal circuit to be examined by scan path test method A semiconductor integrated logic circuit making it feasible to perform different testing methods including a scan path test method while retaining a minimized number of an excluseive external terminal for testing. A first internal logic circuit comprises ... | 06/13/1995 |
| 5424559 | Surface emitting photonic switching structure A surface emitting photonic switching structure includes an intermediate semiconductor structure having pn junction is sandwiched between a first semiconductor multi-layer film mirror (DBR1) and a second semiconductor multi-layer film mirror (DBR2). A pai... | 06/13/1995 |
| 5422635 | Paging receiver capable of avoiding rapid consumption of battery power and method of controlling the same A paging receiver that reports to a person carrying the receiver responsive to the reception of paging calls, the report being made by driving at least one of a plurality of alerting devices. The alert is given when paging calls, including the page number... | 06/06/1995 |
| 5419054 | Triangular drafting instrument A flat triangular piece, usually of shatter resistant plastic, is formed with straight edges and is used in connection with a T-square for drawing perpendicular lines and geometric shapes. The outside peripheral corners are rounded for safety purposes and... | 05/30/1995 |
| 5418010 | Microencapsulation process A microencapsulation process in which a solid or liquid core material is dispersed in a protein slurry, is heated to create a protein melt and then denatured to bring about encapsulation of the core material and the product of that process.... | 05/23/1995 |
| 5414391 | Frequency synthesizer with frequency-division induced phase variation canceler In a frequency synthesizer, the frequency of clock pulses from a voltage controlled oscillator is divided successively with a first scaling factor during a first period of each repetition interval and with a second scaling factor during a second period of... | 05/09/1995 |
| 5406254 | Alarm system with remote module and associated alarm An alarm system has a controller which communicates over a conductive path with a remote module. An indicating device, such as an alarm bell, strobe light, audible horn or other device is coupled to the remote module and activated when a control signal is... | 04/11/1995 |
| 5403552 | Module for automatically controlling a polymer processing system A controller for a polymer processing system operates by emitting a controlled amplitude and frequency of coherent light (laser) energy which is scattered and absorbed by the monitored polymer dispersed throughout an instantaneous aqueous sample of a moni... | 04/04/1995 |
| 5401625 | Histological composition for light microscopy A fixative composition for light microscopy including an aqueous solution of glutaraldehyde, trichloroacetic acid, a metallic salt and a surfactant is disclosed.... | 03/28/1995 |
| 5398962 | Horn activator for steering wheels with air bags A steering wheel having a pressure-sensitive horn activator integrated with an airbag assembly. The horn activator is configured for quick activation, while avoiding accidental activation due to changes in ambient temperatures and pressures.... | 03/21/1995 |
| 5398908 | Container for receipt of an edible good The closure lid is designed as mold on the container body. The volume enclosed by the closure lid and the container body equals at least approximately the volume of the product filled into the container. The edible good is placed in a flowable state into ... | 03/21/1995 |
| 5392179 | Magnetic read/write head assembly with a reduced slider size A magnetic read/write head assembly has a slider including a first and a second insulation films formed on the both surfaces of a distal end portion of a suspension arm, the first and the second insulation films being formed by a sputtering technology. Th... | 02/21/1995 |
| 5390763 | Winding mechanism for rubber band motor A device for winding a rubber band motor has a very light weight so that it may be carried by a model airplane, almost without any weight penalty. A pulley with a recoil spring has a string wound thereon so that the release of a pulled string rewinds it o... | 02/21/1995 |
| 5390366 | Mobile communication system A mobile communication system comprises a plurality of base stations to which a single control channel and a plurality of communication channels are allocated, a single control station connected to this plurality of base stations and mobile stations each ... | 02/14/1995 |
| 5390098 | Headlamp adjusting mechanism A plastic housing has two halves which enclose a vertical cam which is threadedly engaged with an adjustable stud and a horizontal cam which extends beyond the housing to engage with a headlamp assembly. The vertical cam has inclined grooves which receive... | 02/14/1995 |
| 5389077 | Minimally invasive body cavity penetrating instruments An instrument for penetrating into body cavities and potential spaces in preparation for the performance of minimally invasive surgical techniques in which an indicator is provided to assist the surgeon in determining when the instrument is properly place... | 02/14/1995 |
